ORTHALLIANCE INC
S-1/A, 1997-06-11
MANAGEMENT SERVICES
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<PAGE>   1
 
   
     AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON JUNE 11, 1997.
    
   
                                                      REGISTRATION NO. 333-27143
    
================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549
                             ---------------------
   
                        PRE-EFFECTIVE AMENDMENT NO. 1 TO
    
                                    FORM S-1
                             REGISTRATION STATEMENT
                                     UNDER
                           THE SECURITIES ACT OF 1933
                             ---------------------
                               ORTHALLIANCE, INC.
             (Exact name of registrant as specified in its charter)
 
<TABLE>
<S>                             <C>                             <C>
           DELAWARE                          8741                         95-4632134
 (State or other jurisdiction    (Primary Standard Industrial          (I.R.S. employer
     of incorporation or         Classification Code Number)         identification no.)
        organization)
</TABLE>
 
        23848 HAWTHORNE BOULEVARD, SUITE 200, TORRANCE, CALIFORNIA 90505
                                 (310) 791-5656
  (Address, including zip code, and telephone number, including area code, of
                   registrant's principal executive offices)
                             ---------------------
                                  SAM WESTOVER
                            CHIEF EXECUTIVE OFFICER
                               ORTHALLIANCE, INC.
                      23848 HAWTHORNE BOULEVARD, SUITE 200
                           TORRANCE, CALIFORNIA 90505
                                 (310) 791-5656
 (Name, address, including zip code, and telephone number, including area code,
                             of agent for service)
                             ---------------------
                        COPIES OF ALL CORRESPONDENCE TO:
 
<TABLE>
<C>                                            <C>
            PAUL A. QUIROS, ESQ.                         F. MITCHELL WALKER, ESQ.
 NELSON MULLINS RILEY & SCARBOROUGH, L.L.P.               BASS, BERRY & SIMS PLC
        FIRST UNION PLAZA, SUITE 1400                   2700 FIRST AMERICAN CENTER
         999 PEACHTREE STREET, N.E.                     NASHVILLE, TENNESSEE 37238
           ATLANTA, GEORGIA 30309                             (615) 742-6200
               (404) 817-6000                              (615) 742-6293 (FAX)
            (404) 817-6050 (FAX)
</TABLE>
 
                             ---------------------
     APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:  As soon
as practicable after the effective date of this Registration Statement.
 
     If any of the securities being registered on this form are to be offered on
a delayed or continuous basis pursuant to Rule 415 under the Securities Act of
1933, check the following box.  [ ]
 
     If this form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the Securities Act, please check the following box
and list the Securities Act registration statement number of the earlier
effective registration statement for the same offering.  [ ]
 
     If this form is a post-effective amendment filed pursuant to Rule 462(c)
under the Securities Act, check the following box and list the Securities Act
registration statement number of the earlier effective registration statement
for the same offering.  [ ]
 
   
     If delivery of the prospectus is expected to be made pursuant to Rule 434,
please check the following box.  [ ]
    
                             ---------------------
    THE REGISTRANT HEREBY AMENDS THIS REGISTRATION STATEMENT ON SUCH DATE OR
DATES AS MAY BE NECESSARY TO DELAY ITS EFFECTIVE DATE UNTIL THE REGISTRANT SHALL
FILE A FURTHER AMENDMENT WHICH SPECIFICALLY STATES THAT THIS REGISTRATION
STATEMENT SHALL THEREAFTER BECOME EFFECTIVE IN ACCORDANCE WITH SECTION 8(A) OF
THE SECURITIES ACT OF 1933 OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME
EFFECTIVE ON SUCH DATE AS THE COMMISSION ACTING PURSUANT TO SAID SECTION 8(A)
MAY DETERMINE.
================================================================================
<PAGE>   2
 
     INFORMATION CONTAINED HEREIN IS SUBJECT TO COMPLETION OR AMENDMENT. A
     REGISTRATION STATEMENT RELATING TO THESE SECURITIES HAS BEEN FILED WITH THE
     SECURITIES AND EXCHANGE COMMISSION. THESE SECURITIES MAY NOT BE SOLD NOR
     MAY OFFERS TO BUY BE ACCEPTED PRIOR TO THE TIME THE REGISTRATION STATEMENT
     BECOMES EFFECTIVE. THIS PROSPECTUS SHALL NOT CONSTITUTE AN OFFER TO SELL OR
     THE SOLICITATION OF AN OFFER TO BUY NOR SHALL THERE BE ANY SALE OF THESE
     SECURITIES IN ANY STATE IN WHICH SUCH OFFER, SOLICITATION OR SALE WOULD BE
     UNLAWFUL PRIOR TO REGISTRATION OR QUALIFICATION UNDER THE SECURITIES LAWS
     OF ANY SUCH STATE.
 
   
                   SUBJECT TO COMPLETION, DATED JUNE 11, 1997
    
 
PROSPECTUS
 
                                            SHARES
 
                             [ORTHALLIANCE LOGO]
 
   
                              CLASS A COMMON STOCK
    
                             ---------------------
 
   
     The           shares of Class A Common Stock ("Common Stock") offered
hereby are being sold by OrthAlliance, Inc. (the "Company" or "OrthAlliance").
Prior to this offering (the "Offering"), there has been no public market for the
Common Stock. It is currently anticipated that the initial public offering price
will be between $          and $          per share. See "Underwriting" for
information relating to the factors to be considered in determining the initial
public offering price. The Common Stock and the Company's Class B Common Stock
are each entitled to one vote per share and will vote as a single class on all
matters presented to the Company's stockholders. The Company will make
application for the Common Stock to be listed for trading on The Nasdaq Stock
Market's National Market (the "Nasdaq National Market") under the symbol "ORAL."
    
                             ---------------------
 
   
     SEE "RISK FACTORS" BEGINNING ON PAGE 8 FOR A DISCUSSION OF CERTAIN FACTORS
THAT SHOULD BE CONSIDERED BY PROSPECTIVE PURCHASERS OF THE COMMON STOCK OFFERED
HEREBY.
    
                             ---------------------
 
  THESE SECURITIES HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SECURITIES AND
 EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION NOR HAS THE SECURITIES
   AND EXCHANGE COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE
ACCURACY OR ADEQUACY OF THIS PROSPECTUS. ANY REPRESENTATION TO THE CONTRARY IS A
                               CRIMINAL OFFENSE.
 
<TABLE>
<CAPTION>
=============================================================================================================
                                           PRICE TO               UNDERWRITING             PROCEEDS TO
                                            PUBLIC                DISCOUNT(1)               COMPANY(2)
- -------------------------------------------------------------------------------------------------------------
<S>                                <C>                      <C>                      <C>
Per Share.........................            $                        $                        $
- -------------------------------------------------------------------------------------------------------------
Total(3)..........................            $                        $                        $
=============================================================================================================
</TABLE>
 
(1) The Company has agreed to indemnify the Underwriters against certain
    liabilities, including liabilities under the Securities Act of 1933, as
    amended. See "Underwriting."
(2) Before deducting estimated expenses of $          payable by the Company.
(3) The Company has granted the Underwriters an over-allotment option,
    exercisable for 30 days from the date of this Prospectus, to purchase up to
              additional shares of Common Stock on the same terms and conditions
    as set forth above. If all such shares are purchased by the Underwriters,
    the total Price to Public will be $          , the total Underwriting
    Discount will be $          and the total Proceeds to Company will be
    $          . See "Underwriting."
                             ---------------------
 
     The shares of Common Stock are offered subject to receipt and acceptance by
the several Underwriters, to prior sale and to the Underwriters' right to reject
any order in whole or in part and to withdraw, cancel or modify the offer
without notice. It is expected that certificates for the shares of Common Stock
will be available for delivery on or about             , 1997.
                             ---------------------
 
                               J.C.Bradford & Co.
 
                                           , 1997
<PAGE>   3
 
     CERTAIN PERSONS PARTICIPATING IN THIS OFFERING MAY ENGAGE IN TRANSACTIONS
THAT STABILIZE, MAINTAIN, OR OTHERWISE AFFECT THE PRICE OF THE COMMON STOCK,
INCLUDING STABILIZATION AND SHORT-COVERING TRANSACTIONS. FOR A DESCRIPTION OF
THESE ACTIVITIES SEE "UNDERWRITING."
                             ---------------------
 
                                        2
<PAGE>   4
 
                               PROSPECTUS SUMMARY
 
   
     Simultaneously with and as a condition to the closing of this Offering,
OrthAlliance will acquire certain operating assets of 59 separate orthodontic
practices (collectively, the "Founding Practices") in exchange for cash and
shares of Common Stock and will enter into long-term management or consulting
services agreements with the Founding Practices (the "Combination
Transactions"). The number of shares of Common Stock issued in connection with
the Combination Transactions will depend on the initial public offering price of
the Common Stock.
    
 
   
     As a result of the merger of Premier Orthodontic Group, Inc. ("Premier")
and US Orthodontic Care, Inc. ("USOC") with and into OrthAlliance, effective
prior to the closing of the Offering (the "Merger"), OrthAlliance succeeds to
the rights of Premier and USOC under agreements with the Founding Practices. See
"The Company." The term "Allied Practice" includes each of the Founding
Practices and any orthodontic practice with which the Company enters into
long-term management or consulting services agreements in the future. Unless
otherwise indicated by the context, references herein to practice management
services, agreements or rights include consulting and other similar arrangements
which the Company will enter into with certain Allied Practices to comply with
applicable regulations regarding practice management in certain states. As used
herein, the term "Allied Orthodontists" refers to orthodontists affiliated with
an Allied Practice.
    
 
                                  THE COMPANY
 
   
     OrthAlliance was recently organized to create a leading provider of
practice management services to orthodontic practices in the United States. The
Company will manage the business aspects of the Allied Practices (subject to
applicable state laws), thereby allowing Allied Orthodontists to focus on
delivering cost-effective, high quality patient care, and will provide capital
for the development and growth of such practices. The Company will affiliate
with Allied Practices pursuant to long-term management services agreements and
will generate revenues by providing management, marketing and development
services to Allied Practices. The Company intends to aggressively expand its
network of Allied Practices by acquiring certain operating assets of and
entering into long-term management services agreements with additional practices
throughout the United States (herein sometimes referred to as the "affiliation"
with other practices.)
    
 
   
     The Company has entered into definitive agreements, to be consummated
simultaneously with the closing of this Offering, to acquire the stock or
certain operating assets of and enter into long-term management services
agreements with 59 Founding Practices, which include 87 orthodontists operating
156 offices located in 17 states. Management believes that the Company has
distinguished itself from its competitors by affiliating with the Founding
Practices, which management believes are leading practices in their markets. The
Founding Practices were selected based on a variety of factors, including size,
profitability, historical growth and reputation for high quality care, both
among local consumers of orthodontic services and within the orthodontic
services industry. For the year ended December 31, 1996, the Founding Practices
had average revenues of approximately $1,039,000, compared to average practice
revenues for the orthodontic industry as a whole, estimated by the Company to be
approximately $545,000.
    
 
   
     The United States orthodontic industry is highly fragmented, with over 90%
of the approximately 9,000 practicing orthodontists in the United States
operating as sole practitioners. Annual gross revenues for the industry are
approximately $3.5 billion, which have grown at an average rate of 7.5% per year
in recent years. Management believes that less than 2% of the orthodontists
currently practicing in the United States are affiliated with publicly held
practice management companies.
    
                                        3
<PAGE>   5
 
   
     Management believes that the Company's operating strategy will enable
Allied Practices to compete more effectively with and realize greater
profitability than traditional orthodontic practices, thereby inducing
additional orthodontists to affiliate with the Company. Key elements of the
Company's operating strategy are:
    
 
        - Emphasizing quality patient care by (i) relieving the Allied
          Orthodontists from various time-consuming administrative
          responsibilities, (ii) affiliating with high quality practices
          conducted by orthodontists who have completed accredited graduate
          orthodontic training programs, and (iii) recommending practice
          standards, procedures and protocols under the direction of the
          Company's Board of Advisors, composed of the Allied Orthodontists in
          the Founding Practices;
 
   
        - Capitalizing on the best demonstrated practices of Allied
          Orthodontists through identification and promotion of successful
          practice-level strategies including, but not limited to, treatment,
          delivery of patient care, marketing, financing and cost control
          strategies;
    
 
        - Achieving operating efficiencies and economies of scale through (i)
          the implementation of national purchasing discounts for professional
          and clerical supplies and equipment, (ii) the reduction of certain
          expenses common to all Allied Practices, including, but not limited
          to, insurance and employee benefits, and (iii) work flow and patient
          flow enhancements and programs; and
 
        - Increasing market penetration and expansion through (i) local
          marketing programs, supported by demographic and economic analysis,
          and (ii) patient payment plans designed to enhance the affordability
          of orthodontic services.
 
   
     The Company also intends to implement an aggressive growth strategy focused
on (i) affiliating with additional orthodontic practices that fit the
OrthAlliance model of high quality and strong financial performance; (ii)
expanding Allied Practices by providing capital, support and consultation for
satellite office expansion; (iii) assisting the Allied Practices with their
internal growth by increasing gross revenues through increased patient volume;
and (iv) expanding profit margins through operational efficiencies.
    
 
                                  THE OFFERING
 
Common Stock offered by the
  Company..................                   shares
 
Common Stock to be
outstanding after the
  Offering.................                   shares(1)
 
   
Class B Common Stock to be
  outstanding after the
  Offering.................                   shares
    
 
Use of Proceeds............  To fund the cash portion of the purchase price for
                             selected assets of the Founding Practices; to repay
                             certain indebtedness; and for general corporate
                             purposes, which are expected to include future
                             acquisitions and the development of satellite
                             offices. See "Use of Proceeds."
 
   
Class B Common Stock.......  In connection with the Merger,      shares of Class
                             B Common Stock will be issued to      stockholders
                             of OrthAlliance. Holders of Class B Common Stock
                             are entitled to one vote per share and such shares
                             shall be voted with the Common Stock on all matters
                             presented to the holders of Common Stock. The
                             shares of Class B Common Stock are not
                             transferable, except to the holder's spouse,
                             parents, siblings, lineal descendants, a trust for
                             the benefit of any such person or as determined by
                             will or the laws of descent. See "Description of
                             Capital Stock."
    
                                        4
<PAGE>   6
 
   
Conversion of Class B
Common Stock...............  Each share of Class B Common Stock shall
                             automatically convert into Common Stock (i) at the
                             ratio of      shares of Common Stock for each share
                             of Class B Common Stock upon the attainment of
                             certain average closing price calculations for the
                             Common Stock, as determined on the Nasdaq National
                             Market, or other over-the-counter market or an
                             exchange, as then applicable (the "Conversion
                             Prices"), or (ii) if not converted pursuant to
                             subparagraph (i), at the ratio of one share of
                             Common Stock for each share of Class B Common Stock
                             upon the      anniversary of the date of this
                             Prospectus. The shares of Class B Common Stock
                             convertible pursuant to subparagraph (i) above will
                             convert in five increments of up to      shares of
                             Class B Common Stock (20% of the total number of
                             shares of Class B Common Stock issued) upon the
                             attainment of each of the five specified Conversion
                             Prices. At each automatic conversion, each holder
                             of Class B Common Stock will be deemed to have
                             converted a pro rata share of such Class B Common
                             Stock then outstanding. The Conversion Prices shall
                             be established at premiums to the initial public
                             offering price. Each Conversion Price will be
                             deemed to have been achieved at the end of the
                             trading day on which the average closing price of
                             the Common Stock for the preceding   consecutive
                             trading days exceeds such Conversion Price. The
                             closing prices will be those reported on the Nasdaq
                             National Market, or such other reported
                             over-the-counter market or an exchange, as
                             applicable. The initial Conversion Price is equal
                             to 150% of the price to public in the Offering, and
                             each of the subsequent Conversion Prices is equal
                             to 120% of the preceding Conversion Price.
                             Therefore, if the price to public in the Offering
                             is the mid-point of the estimated initial public
                             offering price range ($     ), the five Conversion
                             Prices at which up to        shares of the
                             outstanding Class B Common Stock shall be
                             automatically converted to Common Stock are $     ,
                             $     , $     , $     and $     , respectively. In
                             the event that there are any shares of Class B
                             Common Stock outstanding on the      anniversary of
                             the date of this Prospectus, all such shares shall
                             automatically convert into an equal number of
                             shares of Common Stock. The holders of the Class B
                             Common Stock may convert each share of Class B
                             Common Stock into one share of Common Stock at any
                             time prior to the      anniversary date of this
                             Prospectus.
    
 
Nasdaq Symbol..............  ORAL
- ---------------
 
(1) Includes (i)     shares of Common Stock issued by OrthAlliance in connection
    with the Merger, and (ii)     shares of Common Stock to be issued in
    connection with the Combination Transactions, but excludes     shares of
    Common Stock issuable pursuant to the grant of options for the purchase of
    Common Stock under the Company's stock option plans or upon the exercise of
    outstanding warrants to purchase shares of Common Stock. See
    "Management -- Stock Plans," "Certain Transactions" and "Description of
    Capital Stock -- Warrants."
                                        5
<PAGE>   7
 
     The preceding summary is qualified in its entirety by the more detailed
information and financial statements, including the notes thereto, appearing
elsewhere in this Prospectus. Unless otherwise indicated, the information in
this Prospectus assumes (i) the Underwriters' over-allotment option is not
exercised and (ii) an initial public offering price of $          per share (the
mid-point of the estimated initial public offering price range). This Prospectus
contains forward-looking statements that involve risks and uncertainties. The
Company's actual results may differ materially from the results discussed in the
forward-looking statements. Factors that might cause such a difference include,
but are not limited to, those discussed in "Risk Factors."
 
     Certain industry information used in this Prospectus is derived from the
1995 Journal of Clinical Orthodontists Orthodontic Practice Study ("1995 JCO
Study") and relates to 1994 unless otherwise indicated. Comparable information
for 1995 and 1996 is not expected to be available until the release of the 1997
JCO Study in late 1997 or early 1998. The information compiled in the 1995 JCO
Study relates to orthodontists who have completed accredited graduate
orthodontic training programs and does not include general dentists who also
perform certain orthodontic services.
                                        6
<PAGE>   8
 
                             SUMMARY FINANCIAL DATA
   
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
    
 
   
     The summary pro forma combined financial information is based upon the
historical combined financial statements of the Founding Practices and the
historical financial statements of the Company and gives effect to the following
as of January 1, 1996 (with respect to the statement of operations data for the
year ended December 31, 1996 and the three months ended March 31, 1997, and as
of March 31, 1997 (with respect to the balance sheet data): (i) the Merger; (ii)
the Combination Transactions; and (iii) a provision for federal and state income
taxes as if the Company had been a C corporation during the periods presented.
This information is derived from the unaudited pro forma combined financial
statements of the Company and the related notes thereto included elsewhere in
this Prospectus. The unaudited pro forma financial information does not purport
to represent the financial position or the operating results that would have
been achieved had the Merger and Combination Transactions occurred on the dates
indicated or project the financial position or results of operations for any
future date or period.
    
 
   
<TABLE>
<CAPTION>
                                                               YEAR ENDED      THREE MONTHS
                                                              DECEMBER 31,        ENDED
                                                                  1996        MARCH 31, 1997
                                                              -------------   --------------
                                                              PRO FORMA(1)     PRO FORMA(1)
                                                              -------------   --------------
<S>                                                           <C>             <C>
PRO FORMA STATEMENT OF OPERATIONS DATA(2):
Net revenue(3)..............................................   $   45,690       $   11,287
Direct expenses:
  Salaries, wages and benefits..............................       17,208            4,758
  Orthodontic supplies and lab..............................        5,248              956
  Rent......................................................        4,202            1,082
  Advertising and marketing.................................        1,421              347
                                                               ----------       ----------
          Total direct expenses.............................       28,079            7,143
General and administrative..................................        9,707            2,426
Depreciation and amortization...............................          872              177
                                                               ----------       ----------
          Operating income..................................        7,032            1,541
Interest income (expense), net..............................           --               11
Gain on sale of assets......................................          122                5
                                                               ----------       ----------
Income before provision for income taxes....................        7,154            1,557
          Provision for income taxes........................        2,719              592
                                                               ----------       ----------
          Net income........................................   $    4,435       $      965
                                                               ==========       ==========
          Net income per share..............................   $                $
                                                               ==========       ==========
Number of shares used in net income per share calculation...
                                                               ==========       ==========
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                    MARCH 31, 1997(1)
                                                              -----------------------------
                                                                               PRO FORMA
                                                              PRO FORMA(2)   AS ADJUSTED(4)
                                                              ------------   --------------
<S>                                                           <C>            <C>
BALANCE SHEET DATA:
Working capital.............................................   $    5,011      $
Total assets................................................       13,202
Long-term debt, less current portion........................        1,000
Stockholders' equity........................................        6,867
</TABLE>
    
 
- ---------------
(1) See unaudited pro forma combined financial statements and the notes thereto
    included elsewhere in this Prospectus for a discussion of the assumptions
    made and adjustments applied in preparation of this information.
   
(2) There is no historical presentation for OrthAlliance as it incurred no
    expense and generated no revenues for the year ended December 31, 1996 or
    the three months ended March 31, 1997.
    
(3) Represents pro forma revenue calculated by applying the terms of the
    management services and consulting agreements to the historical operating
    results of the individual Founding Practices. See "Management's Discussion
    and Analysis of Financial Condition and Results of Operations -- Overview"
    and "Business -- Agreements with Allied Practices and Allied Orthodontists."
   
(4) As adjusted gives effect to the sale of           shares of Common Stock
    offered by the Company at an assumed initial public offering price of $
    per share (the mid-point of the estimated initial public offering price
    range) and the application of the estimated net proceeds therefrom. See "Use
    of Proceeds."
    
                                        7
<PAGE>   9
 
                                  RISK FACTORS
 
     An investment in the shares of Common Stock offered hereby involves a high
degree of risk. In addition to the other information contained in this
Prospectus, the following risk factors should be considered carefully in
evaluating the Company and its business before purchasing shares of Common Stock
offered hereby. This Prospectus contains forward-looking statements that involve
risks and uncertainties. Actual results could differ from those discussed in the
forward-looking statements as a result of certain factors, including those set
forth below and elsewhere in this Prospectus.
 
   
     Absence of Combined Operating History.  OrthAlliance was founded in October
1996 and has conducted no operations and generated no revenues to date. As a
result of the Merger, OrthAlliance succeeds to the rights of Premier and USOC
under agreements to acquire certain operating assets of and enter into long-term
management services agreements with the Founding Practices. The Combination
Transactions involve the assumption of certain legal liabilities, some or all of
which could have a material adverse effect on the Company's business, financial
condition and results of operations. The Founding Practices have been operating
as separate, independent entities and there can be no assurance that management
will be able to operate the Company successfully, manage the Founding Practices'
operations, achieve any cost savings as a result of the Combination Transactions
or institute the necessary systems and procedures to manage the Company on a
profitable basis. The combined historical financial results of the Founding
Practices cover periods when the Founding Practices were not under common
control or management and, therefore, may not be indicative of the Company's
future financial or operating results. The Company may experience delays,
complications and expenses in implementing, integrating and operating such
systems, any of which could have a material adverse effect on the Company's
business, financial condition and results of operations. In addition, the
management group has been assembled recently and there can be no assurance that
such persons will be able to effectively oversee the implementation of the
Company's operating, growth, acquisition and business strategies. The inability
of the Company to successfully integrate or operate the Founding Practices could
have a material adverse effect on the Company's business, financial condition
and results of operations and make it unlikely that the Company's acquisition
program will be successful. See "Management's Discussion and Analysis of
Financial Condition and Results of Operations," "Management" and "Certain
Transactions."
    
 
   
     Dependence on Allied Orthodontists.  The Company receives fees for services
provided to Allied Practices under management services agreements, but does not
employ orthodontists or control or own the practices of its Allied
Orthodontists. The Company's revenue is dependent on revenue generated by the
Allied Practices, which in turn is largely dependent on the efforts of the
Allied Orthodontists and, therefore, the performance of Allied Orthodontists is
essential to the Company's success. The long-term agreements with Allied
Practices have 20 year terms, subject to prior termination by either party for,
among other things, a material default by the other party or a change of control
(as defined therein) applicable to the Company. Any material loss of revenue by
the Company's Allied Orthodontists or termination of such long-term agreements
could have a material adverse effect on the Company's business, financial
condition and results of operations. See "Business -- Agreements with Allied
Practices and Allied Orthodontists."
    
 
   
     Risks Related to Additional Affiliations and Growth Strategy.  One of the
Company's primary business strategies is to increase revenues and expand the
markets it serves beyond the Founding Practices by acquiring certain operating
assets of and entering into long-term management services agreements with
additional orthodontic practices. Competition for such affiliations has
increased significantly in recent years and, as a result, there may be fewer
candidates available for affiliation with the Company. There can be no assurance
that the Company will be able to identify additional practices or contract with
such practices on favorable terms. Further, such arrangements involve a number
of risks, including diversion of management's attention, dependence on
retaining, hiring and training key personnel, and risks associated with the
assumption of certain legal liabilities, some or all of which could have a
material adverse effect on the Company's business, financial condition and
results of operations. In addition, there can be no assurance that the Founding
Practices or other Allied Practices will achieve anticipated revenues and
earnings. To the extent that the Company is unable to enter into affiliations
with additional orthodontic practices, its ability to expand its operations and
increase its revenues to the degree desired would be reduced significantly and
would have a material adverse effect on the Company's business, financial
condition and results of operations. See "Business -- Operating Strategy" and
" -- Growth Strategy."
    
 
                                        8
<PAGE>   10
 
   
     Risks Related to Affiliation Financing.  The Company intends to finance
future affiliations with cash and the issuance of shares of Common Stock as
consideration. In the event that the Common Stock does not maintain a sufficient
market value, or potential acquisition candidates are unwilling to accept Common
Stock as partial consideration for their practices, the Company may be required
to use its cash resources, if available, to initiate and maintain its
acquisition program. If the Company lacks sufficient cash resources to pursue
acquisitions, its growth could be limited unless it is able to obtain additional
capital through debt or equity financing. There can be no assurance that the
Company will be able to obtain such financing if and when it is needed or that,
if available, such financing can be obtained on favorable terms. The inability
to obtain such financing could have a material adverse effect on the Company's
business, financial condition and results of operations. Furthermore, issuing
shares of Common Stock as consideration for (or in order to provide financing
for) future acquisitions could result in significant dilution to existing
stockholders. See "Management's Discussion and Analysis of Financial Condition
and Results of Operations -- Liquidity and Capital Resources" and "Business
 -- Growth Strategy."
    
 
   
     Ability to Continue Internal Growth.  Certain of the Founding Practices
have experienced significant growth in the past, principally through growth of
existing orthodontic offices and the opening of new offices. There can be no
assurance that the Company will be able to expand its market presence in its
current locations or successfully enter other markets by providing financial
resources to the Allied Practices required for opening new orthodontic offices.
Such offices may incur substantial costs, delays or other operational or
financial problems. The ability of the Company to continue its growth will
depend on a number of factors, including the availability of working capital to
support such growth, existing and emerging competition and the Company's ability
to maintain profitability while facing pricing pressures and rising overhead
costs. The Company must also manage costs in a changing regulatory environment,
adapt its infrastructure and systems to accommodate growth, and recruit and
train additional qualified personnel. See "Management's Discussion and Analysis
of Financial Condition and Results of Operations -- Liquidity and Capital
Resources" and "-- Operating Strategy" and " -- Growth Strategy."
    
 
   
     Government Regulation.  The orthodontic industry and orthodontic practices
are regulated extensively at the state and federal levels. The Company will not
control the practice of orthodontics by its Allied Orthodontists as required by
certain regulatory requirements directly applicable to the orthodontists and
their practices. The laws of many states prohibit non-orthodontic entities (such
as OrthAlliance) from practicing orthodontics, owning all or certain assets of
an orthodontic practice, employing orthodontists or controlling the content of
an orthodontist's advertisements. The laws of many states also prohibit
orthodontists from paying any portion of fees received for orthodontic services
in consideration for the referral of a patient. In addition, many states impose
limits on the tasks that may be delegated by an orthodontist to other staff
members. There can be no assurance that any review of the Company's business
relationships by regulatory authorities or the courts will not result in
determinations that could adversely affect the operations of the Company or that
the regulatory environment will not change to restrict the Company's existing or
future operations. These laws and their interpretations vary from state to state
and are enforced by regulatory authorities with broad discretion. There can be
no assurance that the legality of the Company's long-term management services
agreements will not be successfully challenged or that enforceability of the
provisions thereof will not be limited. See "Business -- Agreements with Allied
Practices and Allied Orthodontists." The laws and regulations of certain states
in which the Company may seek to expand may require the Company to change the
form of relationships entered into with orthodontists in a manner which may
restrict the Company's operations in those states or may prevent the Company
from acquiring the assets of or managing or providing consulting services to
orthodontic practices in those states. In addition, there can be no assurance
that the laws and regulations of states in which the Founding Practices
presently maintain operations will not change or be interpreted in the future to
either restrict or adversely affect the Company's relationships with Allied
Orthodontists in those states. See "Business -- Government Regulation."
    
 
   
     Health Care Reform.  The United States Congress has considered various
health care reform proposals, including comprehensive revisions to the current
health care system. It is uncertain what legislative proposals will be adopted
in the future or what actions federal or state legislatures or third-party
payors may take in anticipation of or in response to any health care reform
proposals or legislation. Health care reform legislation adopted by Congress
could have a material adverse effect on the operations of the Company, and
changes in the health care
    
 
                                        9
<PAGE>   11
 
industry, such as the growth of managed care organizations and provider
networks, may result in lower payment levels for the services of the Allied
Orthodontists.
 
   
     Dependence on Enforceability of Operative Agreements.  To effect the
consummation of the Combination Transactions, the Company required the Founding
Practices and certain of their orthodontists to execute three agreements
(collectively, the "Operative Agreements"): (i) a purchase and sale agreement by
and between the Founding Practice and OrthAlliance; (ii) a management services
or consulting and business services agreement by and between the Founding
Practice and OrthAlliance; and (iii) employment agreements by and between the
Founding Practice and certain of its orthodontists. The consummation of the
Combination Transactions and the subsequent viability of the Company are
dependent on the initial and continuing enforceability of the Operative
Agreements. While OrthAlliance has attempted to structure the Operative
Agreements in accordance with applicable law, there can be no assurance that the
enforceability of certain non-compete and other provisions will not be
successfully challenged. Further, because each of the employment agreements is
between the Allied Orthodontist and the Allied Practice, there can be no
assurance that the parties thereto will not terminate or amend the terms and
conditions of such employment agreements. See "Business -- Agreements with
Allied Practices and Allied Orthodontists."
    
 
   
     Dependence on Key Personnel.  The success of the Company is dependent upon
the continued services of the Company's senior management, including Sam
Westover, Chief Executive Officer, Robert S. Chilton, Chief Financial Officer
and P. Craig Hethcox, Chief Operating Officer. The loss of the services of
Messrs. Westover, Chilton or Hethcox or other Company senior management could
have a material adverse effect on the Company's business, financial condition
and results of operations. See "Management."
    
 
     Competition.  The business of providing orthodontic services is highly
competitive in each market in which the Company operates. Each of the Company's
Allied Orthodontists faces competition from other orthodontists or general
dentists in the communities served, some of whom have more established practices
in the market. The Company is aware of several other companies currently
developing, consolidating and managing orthodontic practices throughout much of
the United States, and the Company may encounter substantial competition from
those entities, as well as new market entrants. Other competitors involved in
managing multiple practices may have greater marketing, financial and other
resources and more established operations than the Company. The Company expects
that the level of competition with regional or national management concerns will
remain high in the future, which could limit the Company's ability to maintain
or increase its market share or maintain or increase gross margins, either of
which could have a material adverse effect on the Company's business, financial
condition and results of operations. See "Business -- Competition."
 
   
     Risk of Providing Orthodontic Services.  Each of the Allied Orthodontists
of the Allied Practices provides orthodontic services to the public and may be
exposed to the risk of professional liability and other claims. Several Allied
Orthodontists treat patients complaining of or diagnosed with temporomandibular
joint syndrome ("TMJ"). TMJ consists of a poorly understood set of disorders
largely of unknown origins which cause jaw and facial pain, headaches, earaches,
clicking sounds and restricted jaw movement. Future litigation concerning the
failure to properly diagnose or treat TMJ could materially adversely affect the
Company. Failure to recognize periodontal disease may also serve as the basis
for lawsuits against the Company and/or the Allied Orthodontists. Claims
relating to orthodontic treatment, TMJ-related claims and claims for failure to
diagnose periodontal disease, if successful, could result in substantial damage
awards to the claimants which may exceed the limits of any applicable insurance
coverage. Further, there can be no assurance that claims not covered by the
Company's insurance (e.g., claims for punitive damages) will not arise. The
Company will not control the practice of orthodontics by its Allied
Orthodontists or the compliance with regulatory and other requirements directly
applicable to the Allied Orthodontists and the Allied Practices. Although the
Company intends to acquire liability insurance for itself (with limits and
retention amounts to be negotiated), and to be named as an additional insured
party on the liability insurance policies of the Allied Orthodontists (where
permitted by applicable state law), successful malpractice claims against the
Company or the Allied Orthodontists could have a material adverse effect on the
Company's business, financial condition and results of operations. Claims
against the Company, the Allied Practices and/or the Allied Orthodontists,
regardless of their merit or eventual outcome, may also have a material adverse
effect on the Company's ability to attract patients to Allied Practices or
expand its business. Further, because insurance policies must be renewed
annually, there can be no assurance that the Company, the
    
 
                                       10
<PAGE>   12
 
   
Allied Practices and/or the Allied Orthodontists, will be able to obtain
liability insurance coverage in the future on acceptable terms, if at all. See
"Business -- Litigation and Insurance."
    
 
   
     Substantial Proceeds of Offering Payable to Affiliates.  Approximately
$14.0 million of the net proceeds of this Offering will be used to pay the cash
portion of the purchase price of the purchase and sale agreements and agreements
and plans of reorganization in the Combination Transactions. In addition,
approximately $3.8 million of the net proceeds from the Offering will be used to
repay indebtedness assumed by the Company in connection with the Merger and the
Combination Transactions. See "The Company," "Use of Proceeds" and "Certain
Transactions."
    
 
   
     Control by Existing Management and Stockholders.  Following the completion
of the Combination Transactions and the Offering, OrthAlliance's management
estimates that the Allied Orthodontists, the officers and directors of the
Company and entities affiliated with such persons will beneficially own
approximately      % of the then outstanding shares of Common Stock and Class B
Common Stock and are likely to exercise substantial control over the Company's
affairs. These stockholders acting together will be able to elect the Board of
Directors of the Company and approve or disapprove any matter submitted to a
vote of stockholders, including amendments to the Company's Certificate of
Incorporation (the "Certificate"), mergers, share exchanges, the sale of all or
substantially all of the Company's assets, going private transactions or other
fundamental corporate transactions. See "Principal Stockholders" and
"Description of Capital Stock."
    
 
   
     In addition, certain Allied Orthodontists, officers and directors of the
Company will own an aggregate of      shares of the Class B Common Stock, which
is entitled to one vote per share and is entitled to vote with the Common Stock
on all matters submitted to a vote of the Company's stockholders. The Class B
Common Stock will automatically convert into shares of Common Stock at a ratio
of      shares of Common Stock for each share of Class B Common Stock upon the
attainment of the Conversion Prices. Attainment of each of the Conversion Prices
would result in conversion of the Class B Common Stock into      shares of
Common Stock, further increasing the holders' of such shares control over the
Company's affairs. In the event all of the Class B Common Stock is converted
into the maximum number of shares of Common Stock possible, through the
achievement of all of the Conversion Prices on or before the      anniversary of
the date of this Prospectus, the Allied Orthodontists, the officers and
directors of the Company and entities affiliated with such persons would
beneficially own approximately   % of the then outstanding shares of Common
Stock. If the Conversion Prices are not achieved prior to        , 200 , all
outstanding shares of Class B Common Stock will convert to shares of Common
Stock at a ratio of one share for one share on such date. See "Description of
Capital Stock -- Common Stock and Class B Common Stock."
    
 
   
     Shares Eligible for Future Sale.  All of the shares of Common Stock being
sold in this Offering will be freely tradeable unless acquired by affiliates of
the Company. The market price of the Common Stock could be adversely affected by
the sale of substantial amounts of Common Stock of the Company in the public
market following this Offering. Upon the closing of this Offering, the owners of
the Founding Practices will receive, in the aggregate,           shares of
Common Stock as a portion of the consideration for the affiliation of their
orthodontic practices with the Company. The           shares received by the
owners of the Founding Practices are not being offered by this Prospectus;
however, holders of such shares have certain incidental registration rights
pursuant to the purchase and sale agreements and agreements and plans of
reorganization between OrthAlliance and the Founding Practices, whereby the
Company must use its reasonable efforts to register such shares under certain
circumstances during the twenty-four months following the closing of the
Combination Transactions. See "Description of Capital Stock -- Registration
Rights." Certain other stockholders of OrthAlliance will hold, in the aggregate,
an additional           shares of Common Stock. See "Certain Transactions." None
of these           shares were acquired in transactions registered under the
Securities Act and, accordingly, such shares may not be sold except in
transactions registered under the Securities Act or pursuant to an exemption
from registration thereunder.
    
 
   
     The Company, all of the owners of the Founding Practices, and the executive
officers, directors and 5% or greater shareholders of the Company will be
restricted from offering or selling shares of Common Stock for a period of 365
days (the "Lock-up Period") after the date hereof without the prior written
consent of J.C.
    
 
                                       11
<PAGE>   13
 
Bradford & Co., except that the Company may issue shares of Common Stock in
connection with acquisitions or upon the exercise of options granted under the
Company's stock option plans. See "Underwriting." After the Lock-up Period, all
of such shares may be sold in accordance with Rule 144 promulgated under the
Securities Act of 1933, as amended (the "Securities Act"), subject to the
volume, holding period and other limitations of Rule 144.
 
   
     The Company has filed a registration statement with respect to 2.5 million
shares of Common Stock under the Securities Act for use in connection with
future acquisitions. These shares generally will be freely tradable upon
issuance to persons not deemed to be affiliates of the Company, unless the
Company contractually restricts the sale or other transfer of such shares. The
Company anticipates that the agreements entered into in connection with its
future acquisitions may restrict the resale of all or a portion of the shares
issued in those transactions for varying periods of time.
    
 
   
     No Prior Public Market; Possible Volatility of Stock Price.  Prior to this
Offering, there has been no public market for the Common Stock. The Company will
file an application for the Common Stock to be approved for quotation on the
Nasdaq National Market, however, there can be no assurance that, following the
Offering, a regular trading market for the Common Stock will develop or be
sustained. The initial public offering price has been determined by negotiation
among the Company and the Representative (as defined below) and may bear no
relationship to the market price of the Common Stock after this Offering. See
"Underwriting." The market price of the Common Stock could be subject to
significant fluctuations in response to variations in quarterly operating
results and other factors. In addition, the stock market in recent years has
experienced extreme price and volume fluctuations that often have been unrelated
or disproportionate to the operating performance of companies. Factors such as
actual or anticipated operating results, growth rates, changes in estimates by
analysts, market conditions in the industry, announcements by competitors,
regulatory actions and general economic conditions will vary over time. As a
result of the foregoing, the Company's operating results and prospects
periodically may be below the expectations of public market analysts and
investors. Any such event would likely result in a material adverse effect on
the price of the Common Stock.
    
 
   
     Immediate and Substantial Dilution; Absence of Dividends.  The purchasers
of the Common Stock offered hereby will experience immediate dilution of
$     per share in the net tangible book value of such shares, because the
initial public offering price is substantially higher than the pro forma net
tangible book value per share. Existing stockholders will receive an increase of
$     per share in the pro forma net tangible book value of their shares. In the
event the Company issues additional shares of Common Stock in the future,
including shares which may be issued in connection with future affiliations,
purchasers of Common Stock in this Offering may experience further dilution in
the net tangible book value per share of the Common Stock. See "Dilution." The
Company has never paid any cash dividends and does not anticipate paying cash
dividends on its Common Stock in the foreseeable future. See "Dividend Policy."
    
 
   
     Anti-takeover Effect of Certain Provisions.  Certain provisions of
OrthAlliance's Certificate, Bylaws and the Delaware General Corporation Law
("DGCL") could delay or impede the removal of incumbent directors and could make
a merger, tender offer or proxy contest involving the Company more difficult, or
could discourage a third party from attempting to acquire control of the
Company, even if such events would benefit the interests of the stockholders. In
particular, OrthAlliance's Certificate provides for a "staggered" Board of
Directors in three classes, which could have the effect of delaying a change in
control of the Company. In addition, although OrthAlliance has no current plans
to issue any preferred stock, the Certificate authorizes the Board of Directors
to issue "blank check" preferred stock of the Company, in one or more series,
without stockholder approval of the issuance and upon such terms and conditions,
and having such rights, privileges and preferences, as the Board of Directors
may determine. See "Description of Capital Stock -- Preferred Stock" and
"Certain Provisions of the Certificate, Bylaws and Delaware Law." Certain of the
Company's senior management personnel have entered into employment agreements
with the Company which contain "change in control" provisions. The "change in
control" provisions may hinder, delay, deter or prevent a tender offer, proxy
contest or other attempted takeover because the covered employees would be able
to terminate their employment (with adequate justification required in certain
circumstances), be paid a severance equal to three times their existing base
compensation, maximum possible cash bonus and any accrued salary, benefits or
reimbursements
    
 
                                       12
<PAGE>   14
 
   
and thereafter would be free to compete with the Company. See
"Management -- Employment Agreements." The Service Agreements entered into with
the Allied Orthodontists provide that said agreements may be terminated by the
Allied Practices pursuant to a change of control, defined therein, which does
not include transactions approved by the Company's Board of Directors.
OrthAlliance is also subject to Section 203 of the DGCL which prohibits a
publicly held Delaware corporation from engaging in a "business combination" (as
defined in Section 203 of the DGCL) with an "interested stockholder" (defined in
Section 203 of the DGCL, generally, as a person owning 15% or more of the
Company's outstanding voting stock) for a period of three years after the date
of the transaction in which such person became an interested stockholder, unless
certain conditions are met.
    
 
                                       13
<PAGE>   15
 
                                  THE COMPANY
 
     OrthAlliance was organized to create a leading provider of practice
management services to orthodontic practices in the United States. Premier and
USOC, predecessors to OrthAlliance, were formed in 1996 independently of each
other to acquire certain operating assets of and to enter into long-term
management services agreements with orthodontic practices. The management of
Premier and USOC determined to combine the two companies to form the Company.
Prior to the closing of the Offering, Premier and USOC will be merged with and
into OrthAlliance (previously defined as the Merger), and pursuant thereto the
Company will succeed to the rights of Premier and USOC under the agreements with
the Founding Practices.
 
   
     Simultaneous with and as a condition to the closing of the Offering,
OrthAlliance will acquire certain stock or operating assets of the 59 separate
Founding Practices in exchange for cash and shares of Common Stock and will
enter into long-term management services agreements with the Founding Practices
(previously defined as the Combination Transactions). The aggregate
consideration paid by the Company to the Founding Practices is approximately
$84.9 million, composed of             shares of Common Stock (valued at
$          per share, the mid-point of the estimated initial public offering
price range) and, approximately $14.0 million in cash, all of which is payable
at the closing of the Combination Transactions. The aggregate consideration to
be paid for the Founding Practices will not change; however, the actual number
of shares of Common Stock issued to the Founding Practices in the Combination
Transactions will depend upon the initial public offering price of the Common
Stock. In the event the price to the public is higher than the mid-point of the
range, the aggregate number of shares will be reduced accordingly, and in the
event the price to the public is lower, the aggregate number of shares will be
increased accordingly. Cash proceeds from the Offering will be used to pay the
cash portion of the consideration. See "Certain Transactions," "Risk
Factors -- Control by Existing Management and Stockholders" and "-- Substantial
Proceeds of Offering Payable to Affiliates," "Use of Proceeds," "Management's
Discussion and Analysis of Financial Condition and Results of Operations,"
"Shares Eligible for Future Sale" and the unaudited pro forma combined financial
statements and the notes thereto.
    
 
     The Company maintains its principal executive office at 23848 Hawthorne
Boulevard, Suite 200, Torrance, California 90505, and its telephone number is
(310) 791-5656.
 
                                USE OF PROCEEDS
 
     The net proceeds to the Company from the sale of Common Stock offered
hereby are estimated to be approximately $     million (approximately $
million if the Underwriters' over-allotment option is exercised in full), after
deducting underwriting discounts and other estimated offering expenses payable
by the Company.
 
   
     The Company intends to use the net proceeds from the Offering as follows:
(i) approximately $14.0 million will be used to pay the cash portion of the
purchase price under the purchase and sale agreements with the Founding
Practices; (ii) approximately $3.8 million will be used to repay certain
indebtedness assumed by the Company in the Merger and the Combination
Transactions; (iii) approximately $900,000 will be used to pay accrued
consulting fees; and (iv) the balance will be used for general corporate
purposes including financing the expansion of the Company's business through
affiliations with additional orthodontic practices and the development of
satellite offices for the Allied Practices. The Company currently has no
definitive agreements to affiliate with additional orthodontic practices
following the Offering. The indebtedness to be repaid consists of, among other
things, certain debt incurred by Premier to finance organizational costs and
working capital (the "Premier Note"). The principal amount of the Premier Note
is $1.01 million and it accrues interest at the prime rate plus one percent
(1.0%). Following completion of the Offering, the aggregate payoff is
anticipated to be approximately $1.06 million. See "Certain Transactions."
    
 
     Pending application of the net proceeds as described above, the Company
intends to invest the net proceeds in short-term, interest-bearing, investment
grade securities.
 
                                       14
<PAGE>   16
 
                                DIVIDEND POLICY
 
   
     As a newly formed corporation, the Company has never declared or paid
dividends on its Common Stock or Class B Common Stock. Prior to the Combination
Transactions, the Founding Practices, some of which are sole proprietorships, C
corporations or S corporations, made distributions of earnings to their owners
and stockholders, as applicable. The Company expects that future earnings, if
any, will be retained for the growth and development of the Company's business
and, accordingly, the Company does not anticipate that any dividends will be
declared or paid on the Common Stock for the foreseeable future. The
declaration, payment and amount of future dividends, if any, will depend upon
the future earnings, results of operations, financial position and capital
requirements of the Company, among other factors. The Company may borrow funds
under credit agreements which may limit the ability of the Company to pay
dividends. See "Management's Discussion and Analysis of Financial Condition and
Results of Operations -- Liquidity and Capital Resources."
    
 
                                    DILUTION
 
   
     As of March 31, 1997, after giving effect to the Combination Transactions,
the pro forma net tangible book value of the Company was $6.9 million, or
$          per share. The pro forma net tangible book value per share is
determined by dividing the Company's pro forma net tangible book value (total
tangible assets less total liabilities) by the number of shares of Common Stock
and Class B Common Stock to be outstanding after the Merger and the Combination
Transactions. After giving effect to the sale by the Company of the
shares of Common Stock offered hereby and after deducting underwriting discounts
and commissions and estimated offering expenses, the pro forma net tangible book
value of the Company as of March 31, 1997 would have been $          million, or
$          per share. This represents an immediate increase in net tangible book
value of $          per share to existing stockholders and an immediate dilution
in net tangible book value of $          per share to new investors purchasing
shares of Common Stock in this Offering. The following table illustrates this
per share dilution:
    
 
<TABLE>
<S>                                                           <C>         <C>
Assumed initial public offering price.......................              $
  Pro forma net tangible book value before Offering.........  $
  Increase attributable to new investors....................
Pro forma net tangible book value after Offering............
                                                                          --------
Dilution in net tangible book value to new investors........              $
                                                                          ========
</TABLE>
 
   
     The following table sets forth on a pro forma basis, giving effect to the
Combination Transactions as of March 31, 1997, the number of shares of Common
Stock and Class B Common Stock purchased from the Company, the total
consideration paid to the Company, and the average price per share paid to the
Company by existing stockholders and the new investors purchasing shares of
Common Stock in this Offering:
    
 
<TABLE>
<CAPTION>
                                                                    TOTAL
                                            SHARES PURCHASED    CONSIDERATION
                                            ----------------   ----------------   AVERAGE PRICE
                                            NUMBER   PERCENT   AMOUNT   PERCENT     PER SHARE
                                            ------   -------   ------   -------   -------------
<S>                                         <C>      <C>       <C>      <C>       <C>
Existing stockholders(1)..................                %    $             %      $
New investors.............................
                                            ------    ----     ------    ----       --------
          Total(2)........................                %    $             %      $
                                            ======    ====     ======    ====       ========
</TABLE>
 
- ---------------
 
   
(1) Total consideration paid by existing stockholders represents the combined
    stockholders' equity of OrthAlliance and the Founding Practices before the
    Offering, adjusted to reflect the payment of $14.0 million in cash as
    partial consideration for the Combination Transactions.
    
(2) Does not include           shares of Common Stock issuable upon the exercise
    of options for the purchase of Common Stock granted by the Company pursuant
    to the Company's stock option plans or the exercise of warrants to purchase
    Common Stock. See "Management -- Stock Plans" and "Description of Capital
    Stock -- Warrants."
 
                                       15
<PAGE>   17
 
                                   CAPITALIZATION
 
   
     The following table sets forth the current portion of long-term debt and
the total capitalization of the Company as of March 31, 1997 (i) on a pro forma
basis to reflect the Merger and Combination Transactions and (ii) on a pro forma
as adjusted basis to give effect to the Merger and Combination Transactions, the
sale of the           shares of Common Stock offered hereby (assuming an
Offering price of $  per share) and the application of the net proceeds
therefrom. The Company had no developmental activities in 1996 or for the three
months ended March 31, 1997; therefore, no historical financial statements are
presented in the table below. This table should be read in conjunction with
"Management's Discussion and Analysis of Financial Condition and Results of
Operations," the OrthAlliance financial statements and notes thereto and the
unaudited combined pro forma financial statements and the notes thereto included
in this Prospectus.
    
 
   
<TABLE>
<CAPTION>
                                                                  AS OF MARCH 31, 1997
                                                              -----------------------------
                                                                               PRO FORMA
                                                              PRO FORMA(1)   AS ADJUSTED(2)
                                                              ------------   --------------
                                                                     (IN THOUSANDS)
<S>                                                           <C>            <C>
Current portion of long-term debt...........................    $ 2,796         $
                                                                =======         ========
Long-term debt, less current portion........................      1,000
                                                                -------         --------
Stockholders' equity:
     Preferred Stock $     par value;           shares
      authorized(3); no shares issued and outstanding, pro
      forma or as adjusted..................................         --               --
       Class A Common Stock, $.001 par value;
        shares authorized(3), one share issued and
        outstanding at March 31, 1997(3);           issued
        and outstanding pro forma;        issued and
        outstanding as adjusted(4)..........................         --
       Class B Common Stock, $.001 par value;
        shares authorized(3), no shares issued and
        outstanding at March 31, 1997;           issued and
        outstanding pro forma and as adjusted(4)............         --
     Additional paid-in capital.............................     11,128
     Accumulated deficit....................................     (4,261)
                                                                -------         --------
          Total Stockholders' equity........................      6,867
                                                                -------         --------
               Total capitalization.........................    $ 7,867         $
                                                                =======         ========
</TABLE>
    
 
- ---------------
(1) See unaudited pro forma combined financial statements included elsewhere in
    this Prospectus for a discussion of the assumptions made and adjustments
    applied in preparation of this information.
(2) Gives effect to the sale of      shares of Common Stock offered by the
    Company at an assumed initial public offering price of $       per share and
    the application of the estimated net proceeds therefrom. See "Use of
    Proceeds."
   
(3) Reflects an amendment to the Company's Certificate filed subsequent to March
    31, 1997 to increase the authorized capital stock and to designate classes
    of common stock.
    
   
(4) Does not include           shares of Common Stock issuable upon the exercise
    of outstanding options for the purchase of Common Stock granted under the
    Company's stock option plans or the exercise of warrants to purchase Common
    Stock. See "Management -- Stock Plans" and "Description of Capital Stock --
    Warrants."
    
 
                                       16
<PAGE>   18
 
                            SELECTED FINANCIAL DATA
   
                (IN THOUSANDS, EXCEPT SHARE AND PER SHARE DATA)
    
 
   
     The selected pro forma combined financial information is based upon the
historical combined financial statements of the Founding Practices and the
historical financial statements of the Company and gives effect to the following
as of January 1, 1996 (with respect to the statement of operations data for the
year ended December 31, 1996 and the three months ended March 31, 1997), and as
of March 31, 1997 (with respect to the balance sheet data): (i) the Merger; (ii)
the Combination Transactions, and (iii) a provision for federal and state income
taxes as if the Company had been a C corporation during the periods presented.
This information is derived from the unaudited pro forma combined financial
statements of the Company and the related notes thereto included elsewhere in
this Prospectus. The unaudited pro forma financial information does not purport
to represent the financial position or the operating results that would have
been achieved had the Merger and Combination Transactions occurred on the dates
indicated or project the financial position or results of operations for any
future date or period.
    
 
   
<TABLE>
<CAPTION>
                                                                                THREE MONTHS
                                                               YEAR ENDED           ENDED
                                                              DECEMBER 31,        MARCH 31,
                                                                  1996              1997
                                                              -------------     -------------
                                                              PRO FORMA(1)      PRO FORMA(1)
                                                              -------------     -------------
<S>                                                           <C>               <C>
PRO FORMA STATEMENT OF OPERATIONS DATA(2):
Net revenue(3)..............................................     $45,690           $11,287
Direct expenses:
  Salaries, wages and benefits..............................      17,208             4,758
  Orthodontic supplies and lab..............................       5,248               956
  Rent......................................................       4,202             1,082
  Advertising and marketing.................................       1,421               347
                                                                 -------           -------
          Total direct expenses.............................      28,079             7,143
General and administrative..................................       9,707             2,426
Depreciation and amortization...............................         872               177
                                                                 -------           -------
          Operating income..................................       7,032             1,541
Interest income (expense), net..............................          --                11
Gain on sale of assets......................................         122                 5
                                                                 -------           -------
Income before provision for income taxes....................       7,154             1,557
          Provision for income taxes........................       2,719               592
                                                                 -------           -------
          Net income........................................     $ 4,435           $   965
                                                                 =======           =======
          Net income per share..............................     $                 $
                                                                 =======           =======
Number of shares used in net income per share calculation...
                                                                 =======           =======
</TABLE>
    
 
   
<TABLE>
<CAPTION>
                                                                    MARCH 31, 1997(1)
                                                              -----------------------------
                                                                               PRO FORMA
                                                              PRO FORMA(2)   AS ADJUSTED(4)
                                                              ------------   --------------
<S>                                                           <C>            <C>
BALANCE SHEET DATA:
Working capital.............................................    $ 5,011        $
Total assets................................................     13,202
Long-term debt, less current portion........................      1,000
Stockholders' equity........................................      6,867
</TABLE>
    
 
- ---------------
(1) See unaudited pro forma combined financial statements and the notes thereto
    included elsewhere in this Prospectus for a discussion of the assumptions
    made and adjustments applied in preparation of this information.
   
(2) There is no historical presentation for OrthAlliance as it incurred no
    expense and generated no revenues for the year ended December 31, 1996 or
    the three months ended March 31, 1997.
    
(3) Represents pro forma revenue calculated by applying the terms of the
    management services and consulting agreements to the historical operating
    results of the individual Founding Practices. See "Management's Discussion
    and Analysis of Financial Condition and Results of Operations -- Overview"
    and "Business -- Agreements with Allied Practices and Allied Orthodontists."
   
(4) As adjusted gives effect to the sale of           shares of Common Stock
    offered by the Company at an assumed initial public offering price of $
    per share (the mid-point of the estimated initial public offering price
    range) and the application of the estimated net proceeds therefrom. See "Use
    of Proceeds."
    
 
                                       17
<PAGE>   19
 
                    MANAGEMENT'S DISCUSSION AND ANALYSIS OF
                 FINANCIAL CONDITION AND RESULTS OF OPERATIONS
 
   
     The following discussion and analysis contains certain statements of a
forward-looking nature relating to future events or the future financial
performance of the Company. Such statements are only predictions, and the actual
events or results may differ materially from the results discussed in the
forward-looking statements. Factors that could cause or contribute to such
differences include, but are not limited to, those discussed in "Risk Factors,"
as well as those discussed elsewhere in this Prospectus. The historical results
set forth in this discussion and analysis are not indicative of trends with
respect to any actual or projected future financial performance of the Company.
The following should be read in conjunction with the financial statements and
related notes thereto appearing elsewhere in this Prospectus.
    
 
OVERVIEW
 
   
     OrthAlliance has conducted no significant operations to date but will
acquire as a result of the Combination Transactions certain operating assets
and, in some cases, liabilities of the Founding Practices. In addition,
OrthAlliance will enter into either a service agreement ("Service Agreement") or
a consulting and business services agreement ("Consulting Agreement") with each
of the Founding Practices (the Service Agreements and Consulting Agreements are
referred to herein collectively as "Management Agreements"). Under the Service
Agreements, the Company will provide practice management services to the
Founding Practices in exchange for certain management fees. Under the Consulting
Agreements, which allow the Company and the Founding Practice to comply with
certain state law restrictions on practice management, the Company will provide
consulting services in exchange for similar fees.
    
 
   
     The Company's revenue will consist of the sum of its fees under the
Management Agreements and the reimbursement of operating expenses of the Allied
Practices paid by the Company. In general, the Management Agreements provide for
the payment of management fees to the Company based on a negotiated percentage
of the adjusted patient revenues of the Allied Practices. Adjusted patient
revenue is defined for purposes of the Management Agreements as all fees and
charges recorded by the Allied Practices for professional orthodontic services,
adjusted to reflect uncollectible accounts and other discounts, allowances or
activities that do not generate collectible fees. Patient revenue is recognized
as orthodontic services are performed, with approximately 20% being recognized
at the time of initial treatment. The balance of the contract revenue is
realized evenly over the remaining treatment period. The 20% estimated revenue
at the initial treatment date is based on the estimated costs incurred by the
practice at that time as compared to the total costs of providing the contracted
services. Additionally, the 20% estimated cost at the initial treatment date is
consistent with industry standards and includes the estimated costs of diagnosis
and treatment plan development, initial treatment by orthodontic personnel,
orthodontic supplies, and associated administrative services. The specific fees
paid by each Allied Practice to the Company are based on numerous factors,
including but not limited to the practice's profitability, future growth
potential, revenues, and other factors that the Company may deem appropriate. In
addition, the Management Agreements are structured so that the Company and the
Allied Practices share the benefits of increased Allied Practice profits
resulting from improved operating efficiencies. In exchange for its management
fees, the Company manages the business aspects of the Allied Practices and
provides capital for their development and growth.
    
 
   
     Pursuant to the Management Agreements, the Company is obligated to pay the
operating expenses of each Allied Practice, except for the salaries of the
orthodontists and, in certain states, other professional staff. The Company is
reimbursed for such expenditures by each Allied Practice. The Company will also
incur personnel and administrative expenses in connection with maintaining
corporate offices, from which the Company will provide management,
administrative, marketing, development and acquisition services.
    
 
     In accordance with Staff Accounting Bulletin ("SAB") No. 48, "Transfers of
Nonmonetary Assets by Promoters or Shareholders," published by the Securities
and Exchange Commission (the "Commission"), the acquisition of the assets and
assumption of certain liabilities of all of the Founding Practices pursuant to
the Combination Transactions are accounted for by the Company at the
transferors' historical cost basis, with the shares of Common Stock to be issued
in those transactions being valued at the historical cost of the nonmonetary
 
                                       18
<PAGE>   20
 
   
assets acquired net of liabilities assumed. The cash consideration will be
reflected as a dividend by the Company to the owners of the Founding Practices.
It is currently anticipated that the Company's future acquisitions of certain of
the assets and liabilities of Allied Practices may result in subsequent annual
noncash amortization charges for intangible assets in the Company's statements
of operations.
    
 
     The Company intends to implement an aggressive growth strategy focused on
(i) affiliating with additional orthodontic practices that fit the OrthAlliance
model of high quality and strong financial performance; (ii) expanding Allied
Practices by providing capital, support and consultation for satellite office
expansion; (iii) assisting the Allied Practices with their internal growth by
increasing gross revenues through increased patient volume; and (iv) expanding
profit margins through operational efficiencies.
 
RESULTS OF OPERATIONS
 
     Historical
 
   
     The Company has conducted no significant operations to date and will not
conduct significant operations until the Combination Transactions and the
Offering are completed. OrthAlliance has incurred and will continue to incur
various legal, accounting, travel, personnel and marketing costs in connection
with the Combination Transactions and the Offering. From inception through March
31, 1997, USOC and Premier incurred development costs of $3.6 million and
$593,000, respectively. OrthAlliance did not incur development costs during this
period. See the financial statements, the unaudited pro forma combined financial
statements and the notes related thereto.
    
 
     Pro Forma
 
   
     Revenues.  It is anticipated that substantially all the Company's revenues
will consist of the sum of the fees received pursuant to the Management
Agreements and the reimbursed operating expenses of the Allied Practices. The
revenues included in the unaudited pro forma combined financial statements are
calculated by applying the terms of the Management Agreements to the historical
financial results of the Founding Practices for the year ended December 31, 1996
and the three months ended March 31, 1997, assuming the Combination Transactions
had been completed as of January 1, 1996. Giving effect to the terms of the
Management Agreements and assuming the Combination Transactions had occurred on
January 1, 1996, the pro forma revenues of the Company for the year ended
December 31, 1996 and the three months ended March 31, 1997 would have been
$45.7 million and $11.3 million, respectively.
    
 
   
     Direct Expenses.  The pro forma direct expenses for the year ended December
31, 1996 are based on the expenses incurred by USOC, Premier and the Founding
Practices as a group for the period from corporate inception, in the case of
USOC and Premier, and from January 1, 1996, in the case of the Founding
Practices, through December 31, 1996. The pro forma direct expenses for the
three months ended March 31, 1997 are based on the expenses incurred by USOC,
Premier and the Founding Practices as a group for the three months ended March
31, 1997. A pro forma adjustment has been made to reflect the incremental costs
of the Company providing management services to the Allied Practices in the
first year of operations, including contractual management salaries. The total
pro forma direct expenses do not reflect cost savings that may result from the
Combination Transactions.
    
 
   
     Provision for income taxes.  Pro forma income taxes assume the Company had
operated as a tax paying entity for the year ended December 31, 1996 and for the
three months ended March 31, 1997, subject to an effective combined state and
federal income tax rate of 38% for the period.
    
 
     The Company and the Allied Practices are not subject to significant
seasonal variations in operating results. However, the third quarter
traditionally represents a larger number of treatment starts and the fourth
quarter, interrupted by holidays, generally represents fewer office treatments.
 
LIQUIDITY AND CAPITAL RESOURCES
 
   
     If the Combination Transactions had occurred on March 31, 1997, the Company
would have had pro forma working capital of approximately $5.0 million.
    
 
                                       19
<PAGE>   21
 
   
     The Company anticipates the primary uses of capital will include
affiliation with orthodontic practices, development of satellite orthodontic
offices of Allied Practices and funding working capital needs of the Company and
the Allied Practices. The cost of developing satellite offices will vary by
geographic location; however, it is currently anticipated to be approximately
$250,000 per office. In addition, in the event any of the Allied Practices lack
sufficient funds to pay its current expenses, the Company, pursuant to the
Management Agreements, is required to advance funds to such Allied Practice for
the purpose of paying such expenses. Any such advances will be made in the form
of loans to the Allied Practices to be repaid upon such terms as mutually
agreed. As part of its growth strategy, the Company intends to enter into
additional affiliations with orthodontic practices that will involve the payment
of cash and Common Stock.
    
 
   
     Management believes that the proceeds of the Offering, after application of
the use of proceeds, combined with the Company's anticipated cash flow from
operations will be sufficient to fund the planned capital needs and ongoing
operations of the Company for the foreseeable future. The Company intends to
establish a credit facility to supplement its anticipated cash flow from
operations and the net proceeds from the Offering. In addition, the Company is
concurrently with the Offering registering 2.5 million additional shares of
Common Stock pursuant to a shelf registration statement, which when combined
with the Company's cash resources will be used to support the Company's planned
acquisition program.
    
 
                                       20
<PAGE>   22
 
                                    BUSINESS
 
GENERAL
 
   
     OrthAlliance was recently organized to create a leading provider of
practice management services to orthodontic practices in the United States. The
Company will manage the business aspects of the Allied Practices (subject to
applicable state law), thereby allowing Allied Orthodontists to focus on
delivering cost-effective, high quality patient care, and will provide capital
for the development and growth of such practices. The Company will affiliate
with Allied Practices pursuant to long-term agreements and will generate
revenues by providing management, marketing and development services to Allied
Practices. The Company intends to aggressively expand its network of Allied
Practices by acquiring certain operating assets of and entering into long-term
management services agreements with additional orthodontic practices throughout
the United States.
    
 
   
     The Founding Practices and Their Allied Orthodontists.  The Company has
entered into definitive agreements, to be consummated simultaneously with the
closing of this Offering, to acquire certain operating assets of and enter into
long-term management services agreements with 59 Founding Practices, which
include 87 orthodontists operating 156 offices located in 17 states. Management
believes that the Company has distinguished itself from its competitors by
affiliating with the Founding Practices, which management believes are leading
practices in their markets. The Founding Practices were selected based on a
variety of factors, including size, profitability, historical growth and
reputation for high quality care, among local consumers of orthodontic services
and within the orthodontic services industry. Management intends to capitalize
on the reputations and relationships of the Founding Practices and their Allied
Orthodontists to assist the Company in affiliating with additional orthodontic
practices. For the year ended December 31, 1996, the Founding Practices had
average revenues of approximately $1,039,000, compared to average practice
revenues for the orthodontic industry as a whole, estimated by the Company to be
approximately $545,000.
    
 
   
     Management believes that the Company's management, marketing, recruiting
and growth strategies, as applied to the Founding Practices, will maximize the
Company's revenues. Each Allied Orthodontist of the Founding Practices will
initially be a member of the Company's Board of Advisors, highlighting the
expertise of the Allied Orthodontists of the Founding Practices. The Board of
Advisors will advise management on a broad range of issues, including treatment,
risk management, quality assurance, credentialing, managed care, product
evaluation, professional resources and marketing. The members of the Board of
Advisors will also recommend professional standards for both treatment quality
and delivery of patient care, and provide a peer review process.
    
 
   
     Services of the Company.  Pursuant to the OrthAlliance model, the Company
provides fee-based management services to its Allied Practices thereby allowing
Allied Orthodontists to concentrate on providing cost effective, high quality
patient care. The Company does not practice orthodontics or dentistry, but
generally acquires certain operating assets of an orthodontic practice, employs
the employees (except orthodontists, and where applicable law requires,
hygienists and dental assistants), and enters into long-term Management
Agreements with the Allied Practices. Where state law allows and upon request by
an Allied Practice, the Company may lease equipment or office space to the
Allied Practices and employ orthodontic assistants for the Allied Practices.
    
 
     The Company will generate revenues by providing management services to the
Allied Practices, including billing and collections, cash management,
purchasing, inventory management, payroll processing, employee benefits
administration, advertising and marketing, financial reporting and analysis,
productivity reporting and analysis, training, associate orthodontist recruiting
and capital for satellite office development and acquisitions. Management
believes, based on its experience with the Founding Practices and data available
to it, that the Company's emphasis on high quality patient care and its
business, marketing, technological and practice-growth support systems will
appeal to orthodontists inclined to affiliate with the Company.
 
THE ORTHODONTIC INDUSTRY
 
   
     Orthodontics, the art and science of correcting the misalignment of teeth,
historically has been one of the most profitable specialties in dentistry. The
field of orthodontics has evolved greatly since the turn of the century, a
process which management believes will continue. Orthodontic research and
education have aided the
    
 
                                       21
<PAGE>   23
 
   
development of new materials and techniques of orthodontic treatment, including
the use of computers to help solve complex cases. In 1994, orthodontists in the
United States conducted examinations of nearly 2.5 million potential new
patients and initiated treatment for approximately 1.5 million patients. The
typical orthodontist initiated treatment for approximately 170 patients in 1994
and maintained approximately 380 active cases.
    
 
   
     The primary target market for orthodontic treatment is children ages 8 to
18. In 1994, approximately 80%, or 1.2 million, of all patients treated were
children. The U.S. Census Bureau estimates that as of July 1, 1996, there were
approximately 37.6 million children and adolescents between the ages of 10 and
19. Management believes that as many as 50% of these children and adolescents
could benefit from orthodontic treatment, presenting an attractive opportunity
for the Company. In addition to the traditional juvenile market, the adult
market has been a rapidly growing market for orthodontic services. Management
believes the market for adults has grown rapidly over the last 15 years as a
result of several factors. Adults today are more conscious about their
appearance, which may be improved by orthodontic treatment they may not have
received as children. Moreover, many adults today are more willing to undergo
orthodontic treatment in light of the development of new orthodontic materials
and techniques that allow the orthodontist largely to conceal the bands and
brackets used during treatment because they match the color of the teeth. Based
on statistics obtained from the 1995 JCO Study, management believes that the
adult market for orthodontic services remains untapped, as the number of adults
who need or want orthodontic treatment substantially exceeds the number of
patients currently seeking treatment. In 1994, standard case fees averaged
approximately $3,500 for children and $3,800 for adults.
    
 
   
     Currently, there are approximately 9,000 practicing orthodontists in the
United States, nearly all of whom have graduated from accredited graduate
programs of orthodontics. The industry is highly fragmented, with approximately
90% of the practicing orthodontists acting as sole practitioners and the balance
practicing in multiple-doctor practices (generally two orthodontists) or in
groups affiliated with competitors of the Company. The training and
qualification of an orthodontist is extremely rigorous. Generally, a dentist
must graduate in the top 10% of his or her class at an accredited graduate
school of dentistry, pass national and state board examinations, and complete an
accredited graduate orthodontic program to become an orthodontist. These
programs typically are structured as two- or three-year programs. Each year
about 200 new orthodontists graduate from accredited orthodontic programs.
    
 
OPERATING STRATEGY
 
     Management believes that the Company's operating strategy will enable
Allied Practices to compete more effectively and realize significantly greater
profitability than other orthodontic practices, thereby providing an inducement
for additional orthodontists to affiliate with the Company. Key elements of the
Company's operating strategy include:
 
   
     Emphasizing Quality Patient Care.  Management believes that the services
and support it provides its Allied Orthodontists will positively impact the
level of patient care by increasing the Allied Orthodontists' time to
concentrate on patient care. The primary hindrances to consistent delivery of
quality patient care are (i) the discrepancy in qualifications among practicing
orthodontists and (ii) the amount of time each orthodontist spends on patient
care. The qualifications of providers of orthodontic services vary from general
dentists who have taken weekend courses in orthodontics to graduates of
accredited three-year programs. Nearly all Allied Orthodontists affiliated with
the Founding Practices are graduates of accredited orthodontic programs. In
addition, the Company will establish clinical care advisory committees
consisting of Allied Orthodontists who will meet periodically to formulate
quality assurance programs, to perform peer review studies, and to consult with
each other on current treatments, techniques and issues. Furthermore, recent
orthodontic graduates recruited by the Company will be required (in most cases)
to complete a mentoring program pursuant to which such graduates will provide
treatment under the supervision and guidance of an experienced Allied
Orthodontist for a period of time to refine their skills before assuming primary
responsibility for patient care at a satellite office of an Allied Practice.
    
 
   
     Capitalizing on the Best Demonstrated Practices of Allied
Orthodontists.  The Company believes that one of its most valuable practice
management services will be its ability to identify practice-level strategies
that have proven successful for individual Allied Practices and share this
information among other Allied Practices. Management will routinely evaluate the
policies and procedures of the Allied Practices, including such critical
    
 
                                       22
<PAGE>   24
 
   
areas as treatment quality, delivery of patient care, practice-building,
marketing, patient financing programs and expense control. The Company will
provide Allied Orthodontists with comparative operating and financial data that
will enable Allied Orthodontists to detect areas of their practices that could
be improved. The Company will provide its own analysis of such operating and
financial data and recommend changes to improve performance. The Company expects
that a primary means of identifying and implementing solutions to particular
practice issues will be to consult with Allied Practices that have had
demonstrated success in a certain area. The Company generally will seek to
facilitate communication among Allied Practices through periodic conferences and
meetings and, ultimately, through a proprietary intranet system.
    
 
   
     Achieving Operating Efficiencies and Economies of Scale.  The Company
intends to implement a variety of operating procedures and systems to improve
the productivity and profitability of each orthodontic practice which becomes an
Allied Practice and to achieve economies of scale. The Company will implement
centralized payroll processing, inventory control and national group purchasing
contracts. The Company plans to implement appropriate credit and collection
policies which will accommodate specific needs of the target market of each
Allied Practice. Management believes that patient flow and work flow could be
enhanced by physical improvements in designs to facilities, which should result
in an increase in the number of patients seen and an increase in employee and
orthodontist productivity. If such physical improvement in design is supported
by an adequate return on investment, the Allied Practice and the Company may
undertake such design changes. Operating efficiencies and economies will be
instituted on a per market or per Allied Practice need basis after thorough
analysis, including review of work flow, patient flow, aged accounts receivable
history, facilities, employee work load and productivity, and employee and
patient satisfaction surveys.
    
 
   
     Increasing the Affordability of Orthodontic Care through Flexible Payment
Plans.  The Company will assist Allied Practices in developing and implementing
payment plans designed to make orthodontic services more affordable to
prospective patients, thereby making orthodontic services available to a larger
segment of the population in their respective markets. Many of the Founding
Practices have historically received a down payment of approximately 20% of the
total cost of services, which is typical in the orthodontics industry and is
based on the costs incurred by an orthodontic practice at the time treatment is
initiated. Recognizing that orthodontic services are largely discretionary and
that a significant down payment is often a deterrent to prospective patients,
the Company believes that flexible payment plans are an effective means of
increasing patient volume. Management believes that the markets in which Allied
Practices are located are different and payment plans should be tailored to
respond to the various market demands and opportunities. The Company will make
general recommendations to all Allied Practices with respect to instituting
flexible payment plans and will develop and implement market-tailored plans upon
the request of individual Allied Practices. In addition, the Company will
provide the working capital necessary for the Allied Practices to implement
flexible payment plans which may result in the reduction or elimination of down
payments.
    
 
   
     Stimulating Demand in Local Markets Through Aggressive Marketing.  In
consultation with and upon approval of the Allied Practices, the Company intends
to develop and implement aggressive and innovative marketing plans to augment
each Allied Practice's referral and other marketing systems currently in place.
Management believes that the orthodontic industry has not taken advantage of the
gains that can be achieved through strategic direct marketing and intends to,
upon request of an Allied Practice, implement aggressive direct marketing
campaigns. In addition, certain of the Founding Practices have developed
referral systems with local dentists, to achieve above-average practice revenues
and growth. Upon the request of an Allied Practice and in appropriate markets,
the Company will attempt to reach potential patients through print, local
television and radio advertising.
    
 
GROWTH STRATEGY
 
     Management believes the continued growth of the Founding Practices and the
financial support for the development of new Allied Practices are key components
of the future success of the Company. To increase the Company's revenues and
profits and gain market share, management intends to initiate an aggressive
growth
 
                                       23
<PAGE>   25
 
strategy designed to increase the number of Allied Practices and Allied
Orthodontists over time. Management's expansion strategy includes:
 
   
     Affiliations with Orthodontic Practices.  Management believes that the
Company's target market for affiliations includes approximately half of the
orthodontic practices in the United States (approximately 4,500 practices),
because these practices fit the OrthAlliance model of high quality and
opportunity for revenue and earnings growth. Management believes that
affiliation will be an attractive option for many orthodontists because the
Company intends to (i) provide the capital to open and integrate new orthodontic
offices into existing Allied Practices, (ii) identify and recruit qualified
associate orthodontists for the Allied Practices, (iii) design and offer
business and clinical systems for each Allied Practice, (iv) with the approval
of the Allied Orthodontist, hire the necessary business and non-orthodontic
personnel for each new Allied Practice, (v) help increase each Allied Practice's
market share and the number of new patients seen by recommending successful
marketing and advertising strategies, and (vi) reduce the time Allied
Orthodontists spend on administrative and business related tasks, allowing them
to focus on delivering quality patient care.
    
 
   
     Developing Orthodontic Satellite Offices.  Where management determines
market demand will support practice expansion, the Company will assist Allied
Practices in developing satellite offices to be integrated into Allied Practices
to increase market share and revenues. The Company intends to provide capital
for practice expansion, market research, site selection, office design and
marketing support for satellite office development. Management believes the
Company's recruiting strategy complements growth through the addition of
satellite offices. Experienced associate orthodontists and recently graduated
orthodontists, who have completed a mentoring program, would be well suited to
assume primary responsibility for patient care at newly-established satellite
offices. See "-- Allied Practice Operations and Locations."
    
 
   
     Internal Growth through Improved Operating Efficiencies.  A fundamental
element of management's growth strategy is internal Allied Practice growth
through improving each practice's operating efficiencies. The Company intends to
offer a variety of operating procedures and systems to improve the productivity
and profitability of the Allied Practices. The Company's operating systems and
strategies, together with its recruiting, training, marketing and business
management services should allow Allied Orthodontists to focus their attention
on providing patient care, resulting in increased patient flow and enhanced
revenues. The Company plans to implement payroll processing, employee benefits
administration, financial reporting and analysis, inventory management and
national group purchasing discounted contracts and intends to implement
appropriate credit and collection policies which accommodate specific needs of
the general target markets of each Allied Practice. Operating efficiencies and
economies will be instituted on a per Allied Practice basis after thorough
analysis, including review of work flow, patient flow, aged accounts receivable
history, facilities, employee work load and productivity, employee satisfaction
and patient satisfaction.
    
 
ALLIED PRACTICE OPERATIONS AND LOCATIONS
 
   
     Payment Plan; Case Fees.  At the initial orthodontic treatment, the patient
signs a contract outlining the terms of the treatment, including the anticipated
length of treatment and the total fees. The number of required monthly payments
is estimated at the beginning of the case and generally corresponds to the
anticipated number of months of treatment. Depending on the patient's credit
history, the down payment will range from a substantial down payment to no down
payment. Patients are typically required to pay equal monthly installments
although each Allied Practice will offer a payment plan tailored to its market
and patients.
    
 
   
     If the treatment period exceeds the period originally estimated by the
orthodontist, the patient and the Allied Orthodontist will determine whether
payment for additional treatment will be required. If the treatment is completed
prior to the scheduled completion date, the patient is required to pay the
remaining balance of the contract. If a patient terminates the treatment prior
to the completion of the treatment period, the patient is required to pay the
balance due for services rendered to date.
    
 
     Other payment plans with lower monthly payments are available for patients
who have insurance coverage for the treatment. Approximately 40% of the patients
treated at the Allied Practices have some form of orthodontic insurance
coverage. Payments for patients with insurance may be lower, depending upon the
amount
 
                                       24
<PAGE>   26
 
of the fee paid on behalf of the patient by insurance policies. For patients
with insurance coverage, the portion of the fee not covered by insurance is paid
by the patient and is not waived or discounted by the Allied Practice.
 
   
     Information Systems ("IS").  The Company plans to implement a comprehensive
IS strategy over the next several years. The Company will implement a
communications and data transmission program utilizing a proprietary intranet
system and commercially available integration technology. Typically, an
orthodontic practice utilizes two types of systems. The first system is the
accounting and general ledger system and the second is the production system.
The accounting and general ledger system will be implemented promptly upon the
Allied Practice's affiliation with the Company. The production system, which
provides patient and practice management functions, will take more time to
implement. While it is the Company's stated objective to protect the computer
system and applications investment of each Allied Practice, management intends
to use a combination of integration and interface technologies to tie together
the disparate systems.
    
 
   
     Purchasing.  The Company plans to coordinate quantity discounts of
equipment, office furniture, inventory and supplies for the Allied Practices in
order to reduce per unit costs. In addition, the Company will negotiate
arrangements with other suppliers, such as casualty insurance carriers, that
should provide cost savings to the Allied Practices.
    
 
   
     Locations.  Upon consummation of the Combination Transactions, the Company
will provide management services to the following locations:
    
 
<TABLE>
<CAPTION>
                                                        NUMBER OF       NUMBER OF   NUMBER OF
STATE                                                ORTHODONTISTS(1)    OFFICES     CITIES
- -----                                                ----------------   ---------   ---------
<S>                                                  <C>                <C>         <C>
Alabama............................................          3               3           3
Arizona............................................          2               2           1
California.........................................         15              21          17
Florida............................................         19              34          27
Georgia............................................         18              37          26
Indiana............................................          9              19          17
Kentucky...........................................          2               6           6
Michigan...........................................          1               2           2
Minnesota..........................................          2               2           2
Mississippi........................................          2               6           6
North Carolina.....................................          1               1           1
Pennsylvania.......................................          2               3           3
South Carolina.....................................          3               5           5
Tennessee..........................................          2               3           3
Texas..............................................          4               8           8
Utah...............................................          2               2           2
Virginia...........................................          2               2           2
                                                            --             ---         ---
          Total....................................         89             156         131
                                                            ==             ===         ===
</TABLE>
 
- ---------------
 
(1) Two of the orthodontists have offices in two different states.
 
AGREEMENTS WITH ALLIED PRACTICES AND ALLIED ORTHODONTISTS
 
   
     Each Allied Practice has entered into three material agreements in
connection with the Combination Transactions: (i) an acquisition agreement,
which may be in the form of a purchase and sale agreement whereby Premier or
USOC agrees to acquire certain of the assets or stock of the Allied Practice, or
an agreement and plan of reorganization, whereby the Allied Practice merges with
and into Premier or USOC; (ii) either a Service Agreement or a Consulting
Agreement (depending upon the applicable regulatory requirements), whereby
either Premier or USOC, as the case may be, agrees to provide management or
consulting services to the Allied Practice; and (iii) an Employment Agreement
between the Allied Practice and each related Allied Orthodontist who is an
equity holder in the Allied Practice or who provides orthodontic services
through such practice for
    
 
                                       25
<PAGE>   27
 
   
more than ten days each month. Each of these agreements, with the exception of
the Employment Agreements, will be assumed by the Company in connection with the
Combination Transactions.
    
 
   
     Acquisition Agreements.  The Company, by succeeding to the rights and
obligations of Premier and USOC in the Combination Transactions, will acquire
certain operating assets or stock of each Allied Practice pursuant to an asset
purchase and sale agreement, an agreement and plan of reorganization or a stock
purchase and sale agreement. Each asset purchase and sale agreement generally
provides for the sale by the Allied Practice of its equipment, licenses (to the
extent assignable by law), inventory, accounts receivable, furniture and other
personal property, or some combination thereof based on applicable state laws or
regulations, in exchange for consideration based on the Allied Practice's
adjusted patient revenue (defined below), up to 20% of which is generally
payable in cash, with the remainder payable in shares of Common Stock. Each
stock purchase and sale agreement generally provides for the exchange of the
stock of the Allied Practice by its shareholders and the payment of
consideration to its shareholders, which consideration is generally the same as
the consideration being paid pursuant to the asset purchase and sale agreements.
"Adjusted patient revenue" generally means all fees and charges recorded by the
Allied Practice for professional orthodontic or dental services, adjusted to
reflect uncollectible accounts, professional courtesies, and other discounts,
allowances or activities that do not generate collectible fees.
    
 
   
     Each agreement and plan of reorganization generally provides for the merger
of the Allied Practice with and into USOC or Premier, as the case may be, the
cancellation or retirement of each share of stock in the Allied Practice, and
the payment of consideration to the shareholders of the Allied Practice, which
consideration is generally the same as the consideration being paid pursuant to
the asset purchase and sale agreements. Each asset purchase and sale agreement,
stock purchase and sale agreement and agreement and plan of reorganization
provides for certain incidental registration rights with respect to the shares
of Common Stock paid to the Allied Practice or the Allied Orthodontist, as the
case may be. See "Description of Capital Stock -- Registration Rights."
    
 
   
     Service Agreements.  The parties to each Service Agreement include the
Company, as successor through the Merger, and the Allied Practice, which
typically is a professional corporation or association owned by the related
Allied Orthodontist. Each Service Agreement generally requires the Company to
perform the following services for the Allied Practices: provide and maintain
specified furnishings and equipment; provide necessary employees (except
orthodontists and, where applicable law requires, hygienists and dental
assistants); establish appropriate business systems; purchase and maintain
inventory; perform payroll and accounting functions; provide billing and
collection services with respect to patients, insurance companies, and
third-party payors; arrange all legal services not related to malpractice
litigation; design and execute a marketing plan; advise with respect to new
office locations; and manage and organize the Allied Practice's files and
records, including patient records where permitted by applicable law. In the
event that the Allied Practice lacks sufficient funds to pay its current
expenses, the Company is also required to advance funds to the Allied Practice
for the purpose of paying such expenses. Any such advances will be made in the
form of loans to the Allied Practice to be repaid upon such terms as mutually
agreed.
    
 
   
     In exchange for performing the services described above, the Company
generally receives a service fee equal to a negotiated percentage of the Allied
Practice's adjusted patient revenue. In certain cases, the Allied Practice may
also be required to pay an additional fee based on a percentage of any reduction
in the Allied Practice's annual overhead. The fees paid by each Allied Practice
are based on numerous factors, including but not limited to the practice's
profitability, future growth potential, revenues, and other factors that the
Company may deem significant.
    
 
   
     The term of each Service Agreement is 20 years, subject to prior
termination by either party in the event the other party becomes subject to
voluntary or involuntary bankruptcy proceedings or materially breaches the
agreement, subject to a cure period. In addition, the Allied Practices may
terminate the Service Agreements upon the occurrence of a change of control (as
defined therein). A transaction approved by the Company's Board of Directors is
not a change of control transaction. Upon the expiration or termination of the
Service Agreement, the Allied Practice may, and in certain circumstances must,
repurchase for cash (at book value) certain assets, including all equipment, and
assume certain liabilities of the Company related to the Allied Practice.
    
 
                                       26
<PAGE>   28
 
   
     Each Service Agreement is generally not assignable by either party thereto
without the written consent of the other party; however, the Company may assign
the Service Agreement without the Allied Practice's consent to any entity under
common control with the Company. The Company and the Allied Practice agree to
indemnify each other for costs and expenses incurred by such other party that
are caused directly or indirectly by, as the case may be, the Company's or the
Allied Practice's intentional or negligent acts or omissions. In the case of the
Allied Practice's obligation to indemnify the Company, such obligation also
applies to intentional or negligent acts and omissions occurring prior to the
date of the Service Agreement.
    
 
     Consulting Agreements.  The parties to each Consulting Agreement include
the Company, as successor through the Merger, and the Allied Practice. Certain
provisions of the Consulting Agreement are substantially similar to the Service
Agreement, including provisions relating to the Company's obligation to loan
funds to the Allied Practice in the event the Allied Practice is unable to pay
its current expenses, termination of the Consulting Agreement, repurchase of
assets and assumption of liabilities by the Allied Practice upon expiration or
termination, assignment, and indemnification.
 
   
     The services provided by the Company to the Allied Practice under each
Consulting Agreement generally include consulting with respect to equipment and
office needs; preparing staffing models appropriate for an Allied Practice;
advising and training with respect to business systems; purchasing and
maintaining inventory; advising with respect to and providing or arranging
accounting and bookkeeping services; advising with respect to developing a
marketing plan; assessing the financial feasibility of establishing new offices;
providing billing and collection services; and assisting the Allied Practice in
organizing and developing filing and recording systems.
    
 
   
     In exchange for such services, the Company receives a consulting fee equal
to either a fixed amount that provides for annual increases during the term of
the Consulting Agreement, or a negotiated percentage of the Allied Practice's
adjusted patient revenue. The fees paid by each Allied Practice are based on
numerous factors, including but not limited to the practice's profitability,
future growth potential, revenues, and other factors that the Company may deem
significant.
    
 
   
     Pursuant to both the Service Agreements and Consulting Agreements, the
Company's Allied Orthodontists maintain full control over and ownership of their
orthodontic practices, determine which personnel will be affiliated with the
Allied Practices and set their own standards of practice to promote quality
orthodontic care. The Company does not engage in the practice of orthodontics or
dentistry. Each Allied Orthodontist is responsible for compliance of his or her
Allied Practice with state and local regulations applicable to the practice of
orthodontics and with licensing or certification requirements. In addition, each
Allied Orthodontist acquires and pays for malpractice insurance coverage.
    
 
   
     Employment Agreements.  Each Allied Orthodontist who is or becomes an
equity holder in an Allied Practice or who provides orthodontic services through
an Allied Practice for more than 10 days a month is required to execute an
employment agreement with the Allied Practice. Each employment agreement
generally provides that the Allied Orthodontist will perform professional
services for the Allied Practice for a period of five years, subject to prior
termination, (i) for cause by the Allied Practice (which generally means death,
incapacity, willful misconduct, conviction for a felony, or chronic alcoholism
or drug addiction), (ii) by the Allied Orthodontist in the event of a material
breach by the Allied Practice, and (iii) by the Allied Orthodontist in the event
of the Company's bankruptcy. The Allied Orthodontist agrees that following
termination or expiration of the employment agreement, he or she will not
compete for a period of two years in the market in which the Allied Practice
operates an office and will limit the methods of advertising in the area in
which an Allied Practice is located.
    
 
GOVERNMENT REGULATION
 
   
     General.  The field of orthodontics is highly regulated, and there can be
no assurance that the regulatory environment in which the Company operates will
not change significantly in the future. In general, regulation of healthcare
companies is increasing. Every state imposes licensing requirements on
individual orthodontists and on facilities operated by and services rendered by
orthodontists. In addition, federal and state laws regulate health maintenance
organizations and other managed care organizations for which orthodontists may
be providers. In
    
 
                                       27
<PAGE>   29
 
   
connection with the entry into new markets, the Company, Allied Practices and
Allied Orthodontists may become subject to compliance with additional
regulations.
    
 
   
     The operations of the Allied Practices must meet federal, state and local
regulatory standards in the areas of safety and health. Historically, compliance
with those standards has not had any material adverse effect on the operations
of the Founding Practices. Based on its familiarity with the historical
operations of the Founding Practices and the activities of the Company's Allied
Orthodontists, management believes that the Allied Practices are in compliance
in all material respects with all applicable federal, state and local laws and
regulations relating to safety and health.
    
 
   
     State Legislation.  The laws of several states prohibit orthodontists from
splitting fees with non-orthodontists. Furthermore, many states prohibit
nonorthodontic entities from practicing orthodontics, employing orthodontists,
or in some circumstances, employing orthodontic assistants. The laws of some
states prohibit advertising orthodontic services under a trade or corporate name
and require that all advertising be in the name of the orthodontist. A number of
states also regulate the content of advertisement of orthodontic services and
the use of promotional gift items. A number of states limit the ability of a
non-licensed dentist or non-orthodontist to own equipment or offices used in an
orthodontic practice. Some of these states allow leasing of equipment and office
space to an orthodontic practice, under a bona-fide lease, if the equipment and
office remain in the complete care and custody of the orthodontist. Management
believes, based on its familiarity with the historical operations of the
Founding Practices, the activities of the Company's Allied Orthodontists and
applicable regulations, that the Company's current and planned activities do not
constitute the prohibited practices contemplated by these statutes and
regulations. There can be no assurance, however, that future interpretations of
such laws, or the enactment of more stringent laws, will not require structural
and organizational modifications of the Company's initial relationships with its
Allied Orthodontists or the operation of the Allied Practices. In addition,
statutes in some states could restrict expansion of Company operations in those
jurisdictions. The Company either enters into a Service Agreement or Consulting
Agreement depending upon applicable state regulations.
    
 
   
     Regulatory Compliance.  The Company monitors developments in laws and
regulations relating to the practice of orthodontics and dentistry. The Company
may be required to modify its agreements, operations and marketing strategies
from time to time in response to changes in the business and regulatory
environment. The Company intends to structure all of its agreements, operations
and marketing in accordance with applicable law, although there can be no
assurance that its arrangements will not be successfully challenged or that
required changes may not materially affect the Company's business, financial
condition and results of operations.
    
 
COMPETITION
 
   
     The Company anticipates facing substantial competition from other entities
as OrthAlliance seeks to affiliate with additional orthodontic practices. The
Company is aware of at least four practice management companies that are focused
in the area of orthodontics. Additional entities may enter this market and
compete with the Company. Certain of these competitors have greater financial or
other resources than the Company.
    
 
     The business of providing orthodontic services is highly competitive in
each market in which the Founding Practices and other practices operate.
Founding Practices compete with orthodontists who maintain single offices or
operate a single satellite office, as well as with orthodontists that maintain
group practices or operate in multiple offices. Founding Practices also compete
with general dentists and pedodontists who provide certain orthodontic services,
some of whom have more established practices. The provision of orthodontic
services by such dentists and pedodontists has increased in recent years. There
can be no assurance that the Company or the Allied Practices will be able to
compete effectively within their markets.
 
EMPLOYEES
 
   
     Upon completion of the Combination Transactions and the Merger,
OrthAlliance will employ an aggregate of approximately 565 full-time employees.
None of the Company's employees are represented by a collective bargaining
agreement. OrthAlliance considers its relationship with its employees to be
good.
    
 
                                       28
<PAGE>   30
 
PROPERTIES
 
     The Company leases approximately 1,700 square feet of office space in
Torrance, California for its headquarters and approximately 500 square feet of
office space in its Atlanta, Georgia office.
 
INTELLECTUAL PROPERTY
 
     OrthAlliance has applied for federal registration of the service mark
"OrthAlliance." Management intends to utilize the service mark, as allowed by
applicable law, in the Company's marketing and advertising campaigns in order to
associate the name OrthAlliance with a reputation for nationwide quality
orthodontic care.
 
LITIGATION AND INSURANCE
 
   
     The Company does not have any pending litigation that if adversely
determined would have a material adverse effect on the Company. The Allied
Practices provide orthodontic services to the public and are exposed to the risk
of professional liability and other claims. Such claims, if successful, could
result in substantial damage awards to the claimants that may exceed the limits
of any applicable insurance coverage. Although the Company does not control the
practice of orthodontics by the Allied Practices, it could be asserted that the
Company should be held liable for malpractice of an Allied Orthodontist.
    
 
     The Company maintains liability insurance for itself and it is anticipated
that, where permitted by applicable law, the Company will be named as an
additional insured under the policies of the Allied Practices. There can be no
assurance that any claims against the Company or any of the Allied Practices
will not be successful, or if successful, will not exceed the limits of
available insurance coverage or that such coverage will continue to be available
at acceptable rates.
 
                                       29
<PAGE>   31
 
                                   MANAGEMENT
 
DIRECTORS AND EXECUTIVE OFFICERS
 
     The following table sets forth certain information with respect to the
directors and executive officers of the Company.
 
   
<TABLE>
<CAPTION>
NAME                                              AGE              POSITION WITH THE COMPANY
- ----                                              ---              -------------------------
<S>                                               <C>    <C>
Sam Westover....................................  41     President, Chief Executive Officer and
                                                         Director
Robert S. Chilton...............................  39     Chief Financial Officer
P. Craig Hethcox................................  45     Chief Operating Officer
Paul H. Hayase..................................  42     Senior Vice President -- Human Resources,
                                                         General Counsel and Secretary
Randall K. Bennett, D.D.S.......................  41     Director
Douglas D. Durbin, D.M.D., M.S.D................  42     Director(1)
Randall A. Schmidt, D.D.S., M.S.D...............  40     Director(1)
W. Dennis Summers...............................  48     Director(1)
Jonathan E. Wilfong.............................  48     Chairman of the Board of Directors and
                                                         Consultant
</TABLE>
    
 
- ---------------
 
   
(1) Drs. Durbin and Schmidt and Mr. Summers will be elected to serve as
    Directors immediately preceding consummation of the Combination
    Transactions.
    
 
     Sam Westover has served as a Director, President and Chief Executive
Officer of OrthAlliance since October 1996. From August 1993 until July 1996,
Mr. Westover served as President and Chief Executive Officer of Systemed Inc., a
pharmacy benefit management company, where he also served as a Director from
July 1992 until February 1997. From January 1993 until August 1993, Mr. Westover
served as Senior Vice President, Chief Financial Officer and Treasurer of
Wellpoint Health Networks Inc., a health insurance company. Prior to joining
Wellpoint, Mr. Westover served as Chief Financial Officer and Senior Vice
President, Corporate Financial Services of Blue Cross of California, a position
to which he was named in May 1990.
 
   
     Robert S. Chilton has served as Chief Financial Officer of OrthAlliance
since May 1997. From April 1994 until May 1997, Mr. Chilton served as Vice
President/Controller of E & S Ring Management Corporation, a real estate
management firm. Mr. Chilton was Controller of Karl Storz Endoscopy-America,
Inc., a medical device manufacturer and distributor, from October 1987 until
April 1994. Mr. Chilton is a certified public accountant, and from February 1985
to October 1987 was employed by KPMG Peat Marwick.
    
 
   
     P. Craig Hethcox will become Chief Operating Officer of OrthAlliance upon
the consummation of the Combination Transactions. From January 1997 to the date
of the Merger, Mr. Hethcox has served as Chief Executive Officer of USOC. From
July 1994 to December 1996, he served as Chief Operating Officer for Equimed,
Inc., where he directed the corporate operations for sixty-five ophthalmology,
oncology and surgical center entities. From 1988 to June 1994, Mr. Hethcox
served as Vice President of Operations for Medical Care America, where he was
responsible for the operations of the then largest practice management company
with surgical centers. Mr. Hethcox also held senior management positions with
Medical Corporation of America, Inc., and Omni Eye Services, Inc., both
ophthalmology practice management operations, and was Chief Executive Officer of
Lakeside Community Hospital.
    
 
     Paul H. Hayase has served as Senior Vice President -- Human Resources,
General Counsel and Secretary of OrthAlliance since October 1996. From August
1995 until January 1997, Mr. Hayase served as Vice President -- Human Resources,
General Counsel and Secretary of Systemed Inc. Mr. Hayase served as Senior
Counsel of Ralphs Grocery Company, a supermarket chain in California, from
November 1993 to August 1995. From January 1985 to November 1993, Mr. Hayase
served as Senior Vice President, General Counsel of Knapp Communications
Corporation, a magazine publishing company.
 
     Randall K. Bennett, D.D.S. has served as a Director of OrthAlliance since
its inception. He has practiced orthodontics in Salt Lake City, Utah since 1989.
He practiced in Beverly Hills, California from 1988 to 1989.
 
                                       30
<PAGE>   32
 
Dr. Bennett graduated from Loma Linda University in 1988 with an M.S. degree in
orthodontics and from the University of Alberta in 1981 with a D.D.S. degree.
 
   
     Douglas D. Durbin, D.M.D. has agreed to serve and will be elected a
Director of OrthAlliance immediately preceding the consummation of the
Combination Transactions. Dr. Durbin has served as President of The Kentucky
Center for Orthodontics and Dento-Facial Orthopedics, a Founding Practice, since
1983, and manages six practice locations and 20 employees. Dr. Durbin is a
member of the American Association of Orthodontists, the American Dental
Association and the Kentucky Association of Orthodontists, a Diplomate of the
American Board of Orthodontics and has served as Secretary, Treasurer, and
President of the Bluegrass Dental Society. Dr. Durbin graduated from the
University of Kentucky College of Dentistry with a D.M.D. degree in 1978. He
received his M.S.D. and Certificate in Orthodontics from the University of
Kentucky College of Dentistry in 1983.
    
 
   
     W. Dennis Summers has agreed to serve and will be elected a Director of
OrthAlliance immediately preceding the consummation of the Combination
Transactions. Since 1984, Mr. Summers has served as a principal of Roberts, Isaf
& Summers, P.C. (and its predecessor by merger), a law firm located in Atlanta,
Georgia. Mr. Summers specializes in corporate and business matters.
    
 
     Randall A. Schmidt, D.D.S., M.S.D. has agreed to serve and will be elected
a Director of OrthAlliance immediately preceding the consummation of the
Combination Transactions. Dr. Schmidt has been in the practice of orthodontics
since 1983 in northwest Indiana, where he is a co-owner of Orthodontic
Affiliates, P.C., a Founding Practice. As the Vice-President and
Secretary/Treasurer of Orthodontic Affiliates, P.C., Dr. Schmidt has been
involved in the management and growth of this four-doctor orthodontic practice
with eight offices and 40 employees. Dr. Schmidt is a member of the American
Association of Orthodontists, American Dental Association and the Indiana
Society of Orthodontists. Dr. Schmidt graduated from Indiana University in 1981
with a D.D.S. degree. He received his M.S.D. and Certificate in Orthodontics
from Indiana University in 1983.
 
   
     Jonathan E. Wilfong has served as Chairman of the Board of Directors of
OrthAlliance since May 1997. Mr. Wilfong has served as an executive consultant
to OrthAlliance since its inception and has served as consultant to USOC since
June 1996. Mr. Wilfong is the founder and a principal of Newfound Capital
Associates, an investment banking advisory firm founded in 1996 that specializes
in advising high growth businesses on capital formation strategies and
acquisition transactions. Mr. Wilfong is a Certified Public Accountant, and from
1983 to 1996 was a partner with Price Waterhouse LLP in Atlanta, Georgia and
Greenville, South Carolina.
    
 
BOARD OF DIRECTORS
 
   
     The Company's Board of Directors is divided into three classes which
consist, as nearly as practicable, of one-third of the total number of directors
serving on the Board of Directors. The Board of Directors will have up to nine
members and is currently composed of three members and immediately prior to
consummation of the Combined Transactions will increase to six members, as named
herein. The members of each class serve staggered three-year terms following the
initial terms of such classes. The initial terms of Class I, Class II and Class
III directors expire at the annual stockholders' meetings in 1998, 1999 and
2000, respectively. Dr. Durbin and Mr. Summers will be members of Class I; Dr.
Bennett is and Dr. Schmidt will be a member of Class II; and Messrs. Westover
and Wilfong are members of Class III.
    
 
BOARD COMMITTEES
 
   
     The Board of Directors has established an Executive Committee, a Nominating
Committee, an Audit Committee and a Compensation Committee. Messrs. Westover and
Wilfong and Drs. Bennett and Durbin will serve on the Executive Committee. Mr.
Wilfong and Dr. Bennett will each serve on the Audit Committee and the
Compensation Committee. Messrs. Summers, Westover and Wilfong will serve on the
Nominating Committee. The Executive Committee is authorized by the Board of
Directors to take all action which may be delegated by the Board of Directors
under the DGCL. The Nominating Committee recommends candidates for election to
the Company's Board of Directors, examines the performance of incumbent
Directors and makes recommendations concerning the retention of such Directors.
The Audit Committee recommends the annual appointment of the Company's auditors,
with whom the Audit Committee reviews the scope of audit and non-audit
assignments and
    
 
                                       31
<PAGE>   33
 
   
related fees, accounting principles used by the Company in financial reporting
and the adequacy of the Company's internal control procedures. The 1997 Employee
Stock Plan and the 1997 Non-Employee Director Stock Plan are administered by the
Compensation Committee. The Compensation Committee also has the responsibility
for reviewing and approving salaries, bonuses, and other compensation and
benefits of executive officers, and advising management regarding benefits and
other terms and conditions of compensation.
    
 
DIRECTOR COMPENSATION
 
   
     Members of the Board of Directors are reimbursed for their out-of-pocket
expenses for each meeting attended but otherwise serve without cash
compensation. The Company has adopted the 1997 Non-Employee Director Stock Plan,
pursuant to which each non-employee director (the "Outside Directors") receives
an automatic grant to purchase 5,000 shares of Common Stock upon his or her
election to the Board and, if serving as an Outside Director following the
annual meeting each year, an additional grant for the purchase of 5,000 shares
of Common Stock. See "-- Stock Plans -- 1997 Non-Employee Director Stock Option
Plan."
    
 
EXECUTIVE COMPENSATION
 
     OrthAlliance was incorporated in October 1996 and did not conduct any
operations prior to that time. The Company anticipates that during fiscal 1997
its President and Chief Executive Officer and the three other most highly
compensated executive officers who are anticipated to receive annualized
compensation in excess of $100,000 will be, respectively, Messrs. Westover,
Hethcox, Hayase and Chilton. Their expected annualized base salaries for 1997
are $250,000, $185,000, $165,000 and $135,000, respectively. See "-- Employment
Agreements."
 
EMPLOYMENT AGREEMENTS
 
   
     Prior to the Merger, the Company will enter into employment agreements with
Messrs. Westover, Hethcox and Hayase providing for annual base salaries of
$250,000, $185,000 and $165,000, respectively, with each person being eligible
for a cash bonus of up to 30% of his base salary. Additionally, the agreements
provide for the grant of options for the purchase of Common Stock to each of
Messrs. Westover, Hethcox and Hayase for 300,000, 100,000 and 75,000 shares of
Common Stock, respectively, and such options will vest (i) 20% on the closing of
the Offering and (ii) 20% on the anniversary of such date for each of the next
four years. These options expire ten years from the date of grant. Each
employment agreement contains a provision that if the employee is terminated
within a twelve-month period following a change in control of the Company (as
defined therein), the Company will pay such person three times the sum of (i)
his annual base compensation, (ii) the maximum possible cash bonus for such
year, and (iii) any accrued salary, benefits or reimbursements.
    
 
   
     The Company has entered into a letter agreement with Mr. Chilton providing
for an annual base salary of $135,000, and a cash bonus of up to 30% of his
annualized base salary. Additionally, the Company has granted Mr. Chilton an
option for the purchase of 50,000 shares of Common Stock, with a vesting
schedule consistent with the vesting schedule for Messrs. Westover, Hethcox and
Hayase discussed above.
    
 
   
     All options for the purchase of Common Stock granted to management
personnel discussed herein have an exercise price equal to the price of the
Common Stock to the public in the Offering.
    
 
STOCK PLANS
 
   
     OrthAlliance has adopted the 1997 Employee Stock Plan and the 1997
Non-Employee Director Stock Plan (together, the "Stock Plans"). The Company
intends to register the shares of Common Stock issuable upon exercise of options
granted under the Stock Plans and, upon registration, such shares will be
eligible for resale in the public market, subject to applicable rules and
regulations of the Securities Act.
    
 
   
     1997 Employee Stock Plan.  The Board of Directors has adopted and the
stockholder has approved the Company's 1997 Employee Stock Plan (the "Employee
Plan"). Awards under the Employee Plan are to be determined by the Compensation
Committee and granted to officers and employees of the Company in the form
    
 
                                       32
<PAGE>   34
 
   
of non-qualified or incentive stock options. The Employee Plan may be terminated
by the Board of Directors at any time.
    
 
   
     A total of 1,000,000 shares of Common Stock are reserved for issuance
pursuant to the Employee Plan, subject to anti-dilution provisions. As of May
14, 1997, options for the purchase of 600,000 shares of Common Stock had been
granted to certain officers of the Company at an exercise price equal to the
price to the public in the Offering, which options vest 20% upon the closing of
the Offering with the balance vesting 20% on the first through fourth
anniversary dates of the date of this Prospectus. These options expire ten years
from the date of grant. See "Management -- Employment Agreements."
    
 
   
     1997 Non-Employee Director Stock Option Plan.  The Board of Directors has
adopted and the stockholder has approved the 1997 Non-Employee Director Stock
Option Plan (the "Non-Employee Director Plan"). Awards under this plan are to be
granted to non-employee directors ("Outside Directors") of the Company. The plan
is intended to allow Outside Directors receiving grants to be Non-Employee
Directors, as defined in Rule 16b-3 under the Securities Exchange Act of 1934,
as amended (the "Exchange Act"), with respect to the Company's Stock Plans and,
accordingly, is intended to be self-governing with respect to the Outside
Directors.
    
 
   
     A total of 200,000 shares of Common Stock are reserved for issuance to the
Outside Directors pursuant to the Non-Employee Director Plan. Each person who is
elected or appointed as an Outside Director will be automatically granted an
option to purchase 5,000 shares of Common Stock at the time of his or her
election or appointment. Commencing in 1998, each person who continues to serve
as an Outside Director following the annual meeting each year will receive an
option to purchase 5,000 shares of Common Stock. Options issued to Outside
Directors pursuant to this plan will be non-qualified stock options, and will
expire ten years from the date of grant. The exercise price of such options
shall be equal to the average closing bid price for the 10 trading days before
the Company's annual meeting of stockholders for the annual grants and for the
10 trading days before election for the initial grants. Options issued to
Outside Directors become exercisable on the first anniversary of the date of
grant.
    
 
   
     Administration of the Stock Plans.  The Employee Plan is administered by
the Compensation Committee of the Board of Directors. The Non-Employee Director
Plan is intended to be self-governing. With respect to the Employee Plan, the
Compensation Committee determines the persons to whom, and the times at which,
awards are granted, the types of awards granted, certain amendments to the plan
(as permitted) and all other related terms and conditions of the awards, subject
to the terms, conditions and limitations set forth therein. Under the Employee
Plan, the Compensation Committee must consist of at least two directors, and
with respect to grants of options or awards to any persons subject to Section 16
of the Exchange Act, the Compensation Committee must consist of at least two
directors who are Non-Employee Directors under Rule 16b-3.
    
 
LIMITATION OF LIABILITY AND INDEMNIFICATION OF DIRECTORS AND OFFICERS
 
     Under Section 145 of the Delaware General Corporation Law (the "DGCL"), a
corporation may indemnify any of its directors and officers against expenses
(including attorneys' fees), judgments, fines and amounts paid in settlement
actually and reasonably incurred by such person in connection with a threatened,
pending or completed action, suit or proceeding brought against such officer or
director by reason of the fact that he or she is or was a director or officer
(i) if any such person acted in good faith and in a manner reasonably believed
to be in or not opposed to the best interests of the corporation and (ii) in
connection with any criminal action or proceeding if such person had no
reasonable cause to believe such conduct was unlawful. In actions brought by or
in the right of the corporation, however, Section 145 provides that no
indemnification may be made in respect of any claim, issue or matter as to which
such person shall have been adjudged to be liable for negligence or misconduct
in the performance of such person's duty to the corporation unless, and only to
the extent that, the Court of Chancery of the State of Delaware or the court in
which such action or suit was brought shall determine upon application that,
despite the adjudication of liability but in review of all the circumstances of
the case, such person is fairly and reasonably entitled to indemnity for such
expenses which the Court of Chancery or such other court shall deem proper.
 
   
     The Company's Certificate provides that no director of the Company shall be
liable for breach of fiduciary duty as a director except for (i) any breach of
the director's duty of loyalty to the Company or its stockholders;
    
 
                                       33
<PAGE>   35
 
   
(ii) acts or omissions not in good faith or which involve intentional misconduct
or a knowing violation of the law; (iii) for willful or negligent violations of
certain provisions of the DGCL imposing certain requirements with respect to
stock repurchases, redemptions and dividends; or (iv) any transaction from which
the director derived an improper personal benefit. Pursuant to the Company's
Certificate and Bylaws, the Company is obligated to indemnify each of its
directors and officers to the fullest extent permitted by the DGCL. In addition,
the Bylaws obligate the Company to purchase and maintain insurance on behalf of
any director or officer of the Company against any liability asserted against
and incurred by such director or officer, whether or not the Company would have
the power to indemnify such officer or director against such liability under the
provisions of the DGCL.
    
 
COMPENSATION COMMITTEE INTERLOCKS
 
   
     The Company had no Compensation Committee prior to May 1997. Prior thereto,
the Board of Directors of the Company, and of USOC and Premier, respectively,
determined executive compensation. No executive officer of the Company serves as
a member of a compensation committee or as a director of any entity of which any
of the Company's directors serve as an executive officer.
    
 
                              CERTAIN TRANSACTIONS
 
   
     The terms of the Merger require that USOC and Premier will be merged with
and into OrthAlliance with each outstanding share of USOC's and Premier's
capital stock and warrants for the purchase of common stock converting into
          shares of Common Stock and warrants for the purchase of
shares of common stock, respectively, of OrthAlliance. The directors, executive
officers and five percent or greater beneficial owners of the Company will
receive total consideration pursuant to the Merger (excluding any consideration
that may be received indirectly through POV LLC, as described below) as follows:
Mr. Westover,           shares of Common Stock; Mr. Hayase,           shares of
Common Stock; Dr. Bennett,           shares of Common Stock; Dr. Durbin,
          shares of Common Stock; Dr. Schmidt,           shares of Common Stock;
Mr. Wilfong           shares of Common Stock; and Dr. Pickron,           shares
of Common Stock.
    
 
   
     Simultaneous with and as a condition to the closing of the Offering,
OrthAlliance will close the Combination Transactions pursuant to which it will
acquire certain stock and operating assets of the 59 separate Founding Practices
in exchange for cash and shares of Common Stock and enter into Management
Agreements with the Founding Practices. The aggregate consideration to be paid
by OrthAlliance to the Founding Practices is approximately $84.9 million,
consisting of           shares of Common Stock (valued at $          per share,
the mid-point of the estimated initial public offering price range) and
approximately $14.0 million in cash, all of which is payable upon closing of the
Combination Transactions. The aggregate consideration to be paid for the
Founding Practices will not change; however, the actual number of shares of
Common Stock issued to the Founding Practices will increase or decrease
depending upon the public offering price of the Common Stock in the Offering.
The exact number of shares will be determined by dividing $70.9 million by the
price to the public in the Offering. The cash portion of the consideration will
be paid from proceeds received by the Company in the Offering. Drs. Bennett,
Durbin and Schmidt, all of whom are or will be directors of the Company, and Dr.
Pickron, a beneficial owner of more than 5% of the Common Stock following
completion of the Merger, the Combination Transactions and the Offering, will
receive           ,           ,           and           shares of Common Stock,
respectively, and $          , $          , $          and $          in cash,
respectively, as a result of the Combination Transactions. The consideration
that the Company has agreed to pay each of the Founding Practices of Drs.
Pickron, Durbin, Schmidt and Bennett under the affiliation agreements was
calculated in the same manner as the consideration for each of the other
Founding Practices.
    
 
   
     In January 1997, Premier Orthodontic Ventures, LLC, a limited liability
company ("POV LLC"), loaned approximately $1 million to Premier, and in
connection with the Merger, the promissory note evidencing this debt obligation
(the "Premier Note") will become the obligation of OrthAlliance. POV LLC will
receive, out of proceeds of the Offering, an aggregate of approximately $1.06
million, which includes repayment of the principal amount of the Premier Note
and accrued interest of approximately $50,000. In addition, POV LLC owns 72% of
the outstanding common stock of Premier. Dr. Bennett and Messrs. Westover,
Hayase and J. Dalton Gerlach, a
    
 
                                       34
<PAGE>   36
 
   
Senior Vice President - Development of the Company, own Class A membership
interests in POV LLC of 33.3%, 44.4%, 11.1% and 11.1%, respectively. Mr. Gerlach
owns approximately 19% of the Class B membership interests in POV LLC. In
consideration of the redemption of their membership interests in POV LLC, each
Class B member will receive his invested amount (which is approximately $1.0
million in the aggregate) plus interest at 6% and a number of shares of Common
Stock equal to two times such member's invested amount. The Class A members will
be entitled to a pro rata distribution of the remaining assets of POV LLC after
the interests of the Class B members have been redeemed.
    
 
   
     POV LLC entered into certain letter agreements with each of Messrs.
Westover, Hayase and Gerlach which provide that OrthAlliance as the successor to
Premier must pay such persons consulting fees of $233,960, $140,376 and
$147,897, respectively, upon the closing of the Offering. See "Use of Proceeds."
    
 
   
     USOC entered into a consulting agreement with Newfound Capital Associates
("Newfound") and Newfound's President, Mr. Wilfong. OrthAlliance succeeds to the
rights and obligations of USOC under the consulting agreement through the
Merger. In addition, Mr. Wilfong entered into a separate consulting agreement
with OrthAlliance. Mr. Wilfong agreed to provide financial and general business
services to the Company, and the Company has agreed to pay Mr. Wilfong
consulting fees of $300,000 for such services, of which $250,000 is payable upon
completion of the Offering and will be paid from proceeds received in the
Offering. See "Use of Proceeds." Pursuant to these consulting agreements and in
addition to the consulting fee, the Company issued to Mr. Wilfong (i)
       shares of Common Stock, and (ii) warrants to purchase 318,750 shares of
Common Stock with an exercise price per share equal to the initial public
offering price with respect to 150,000 shares and equal to the initial public
offering price net of the underwriting discount with respect to 168,750 shares
of Common Stock, exercisable for a five-year term commencing on the date of this
Prospectus. Mr. Wilfong will continue to provide consulting services to the
Company until the earlier of the termination of the consulting agreements on
September 30, 1997 or the occurrence of other specified events. Pursuant to the
terms of the stock purchase warrants, Mr. Wilfong has certain incidental
registration rights for the registration of the shares of Common Stock
underlying the warrants. See "Description of Capital Stock -- Registration
Rights."
    
 
   
     USOC entered into a consulting agreement with Premier Management, Inc.
("PMI") and PMI's President, Robert D. Garces. The Company succeeds to the
rights and obligations of USOC under the consulting agreement through the
Merger. Under his consulting agreement, Mr. Garces has agreed to provide
financial and general business services to the Company, and the Company has
agreed to pay Mr. Garces a consulting fee of $100,000 for such services, payable
upon completion of the Offering and from the proceeds of the Offering. In
addition to the consulting fee, the Company issued to Mr. Garces (i)
       shares of Common Stock, and (ii) a warrant to purchase 56,250 shares of
Common Stock with an exercise price equal to the initial public offering price
net of the underwriting discount, exercisable for a five-year term commencing on
the date of this Prospectus. Mr. Garces will continue to provide services until
the earlier of the termination of the consulting agreement on September 30, 1997
or the occurrence of other specified events. Pursuant to the terms of the stock
purchase warrant, Mr. Garces has certain incidental registration rights for the
registration of the shares of Common Stock underlying the warrants. See
"Description of Capital Stock -- Registration Rights."
    
 
   
     USOC entered into an employment agreement with Mr. Hethcox providing for
the payment of $18,000 per month and the issuance of warrants to purchase 50,000
shares of USOC's common stock. Mr. Hethcox has received $108,000 in 1997.
OrthAlliance will assume through the Merger the obligation of USOC to Mr.
Hethcox and will issue replacement warrants to purchase 50,000 shares of Common
Stock at an exercise price of $0.01 a share, exercisable for a five-year term
commencing on the date of this Prospectus.
    
 
   
     Certain of the Allied Orthodontists, including Dr. Schmidt, will receive
stock purchase warrants for referring other Allied Orthodontists to the Company.
Dr. Schmidt will receive a warrant to purchase 31,600 shares of Common Stock
with an exercise price per share equal to the initial public offering price,
exercisable for a five-year term commencing on the date of this Prospectus.
    
 
   
     At the direction of the Company's executive officers, certain Allied
Orthodontists may be paid fees for: (i) preparing educational and seminar
materials for the Company, (ii) consulting with other Allied Orthodontists on
matters requested by management, (iii) identifying and performing due diligence
on additional orthodontic practices which may affiliate with the Company, and
(iv) other matters requested from time to time by
    
 
                                       35
<PAGE>   37
 
   
management in the normal course of operating the Company's business. It is not
presently known by management which Allied Orthodontists will be requested to
perform such services in the future and, therefore, management does not know the
amount of fees or the Allied Orthodontists to whom such fees may be paid.
    
 
   
     Dr. Pickron received cash compensation from USOC in 1996 totalling $150,000
for serving as its Chief Executive Officer.
    
 
                             PRINCIPAL STOCKHOLDERS
 
   
     The following table sets forth certain information regarding the beneficial
ownership of the Common Stock and Class B Common Stock as of June      , 1997,
and as adjusted to reflect the consummation of this Offering, by (i) each person
who is known by the Company to be the beneficial owner of more than five percent
(5%) of the outstanding shares of the Common Stock or Class B Common Stock, (ii)
each director and executive officer of the Company and (iii) all directors and
executive officers of the Company as a group.
    
 
   
<TABLE>
<CAPTION>
                                                                                    SHARES OF      PERCENT OF
                             SHARES OF            PERCENT OF COMMON STOCK            CLASS B        CLASS B
                            COMMON STOCK            BENEFICIALLY OWNED             COMMON STOCK   COMMON STOCK
                            BENEFICIALLY   -------------------------------------   BENEFICIALLY   BENEFICIALLY
NAME                        OWNED(1)(2)    PRIOR TO OFFERING(2)   AFTER OFFERING      OWNED          OWNED
- ----                        ------------   --------------------   --------------   ------------   ------------
<S>                         <C>            <C>                    <C>              <C>            <C>
Sam Westover(3)...........                            %                   %
Robert S. Chilton(4)......
P. Craig Hethcox(5).......
Paul H. Hayase(6).........
Dr. Randall K. Bennett....
Dr. Douglas D. Durbin.....
Dr. Randall A. Schmidt....
W. Dennis Summers.........
Jonathan E. Wilfong(7)....
Dr. Robert N.
  Pickron(8)..............
All directors and
  executive officers as a
  group (9 persons).......
</TABLE>
    
 
- ---------------
 
  * Less than one percent of the outstanding Common Stock.
   
(1) Unless otherwise indicated, each of the stockholders listed has sole voting
    and investment power with respect to the shares of Common Stock or Class B
    Common Stock beneficially owned by such stockholder. Shares of Common Stock
    subject to options or warrants exercisable within 60 days are deemed
    outstanding for computing the percentage of ownership of the option holder.
    The address of all persons listed, except Mr. Wilfong and Dr. Pickron, is
    23848 Hawthorne Boulevard, Suite 200, Torrance, California 90505 unless
    otherwise indicated.
    
(2) Reflects the consummation of the Merger.
   
(3) Includes 60,000 shares of Common Stock subject to options that are
    exercisable within 60 days of the Offering.
    
   
(4) Includes 10,000 shares of Common Stock subject to options that are
    exercisable within 60 days of the Offering.
    
   
(5) Includes 20,000 shares of Common Stock subject to options and 50,000 shares
    of Common Stock subject to warrants that are currently exercisable or are
    exercisable within 60 days of the Offering.
    
(6) Includes 15,000 shares subject to options that are exercisable within 60
    days of the Offering.
(7) The business address of Mr. Wilfong is 536 Manor Ridge Drive, N.W., Atlanta,
    Georgia 30305. Includes 318,750 shares subject to warrants that are
    exercisable within 60 days of the Offering.
(8) The business address of Dr. Pickron is 3294 Medlock Bridge Road, Building A,
    Norcross, Georgia 30092. Includes an aggregate of        shares held in
    separate trusts by a third party trustee for the benefit of each of Dr.
    Pickron's children, and        shares held by Dr. Pickron's spouse. Dr.
    Pickron disclaims beneficial ownership of the        shares held in such
    trusts.
 
                                       36
<PAGE>   38
 
                          DESCRIPTION OF CAPITAL STOCK
 
     The following summary is based upon OrthAlliance's Certificate and Bylaws,
which are included as exhibits to the Registration Statement of which this
Prospectus forms a part. The following discussion is qualified in its entirety
by reference to such exhibits.
 
AUTHORIZED AND OUTSTANDING CAPITAL STOCK
 
   
     Pursuant to the Certificate, the Company has authority to issue
shares of capital stock, consisting of        shares of Common Stock, par value
$.001 per share,        shares of Class B Common Stock, par value $.001 per
share, and the Board of Directors of the Company has authority (without action
by the stockholders) to issue        shares of preferred stock, par value
$       per share, in one or more classes or series and to determine the voting
rights, preferences as to dividends and in liquidation, and conversion and other
rights of each such series (the "Preferred Stock"). As of           , 1997,
there were      shares of Common Stock and      shares of Class B Common Stock
issued and outstanding. The Company has no current plans to issue any shares of
Preferred Stock. Upon completion of the Merger, the Company will have
approximately             holders of record of the Company's Common Stock.
    
 
   
     The rights of the holders of Common Stock and Class B Common Stock
discussed below are subject to such rights as the Board of Directors may
hereafter confer on the holders of Preferred Stock; accordingly, rights
conferred on holders of Preferred Stock that may be issued in the future under
the Certificate may have a material adverse effect on the rights of holders of
Common Stock and Class B Common Stock.
    
 
   
COMMON STOCK AND CLASS B COMMON STOCK
    
 
   
     The Common Stock and the Class B Common Stock and the rights, powers and
limitations thereof are identical, except as described below.
    
 
   
     Voting Rights.  Each holder of shares of Common Stock and Class B Common
Stock shall be entitled to attend all special and annual meetings of the
stockholders of the Company and, share-for-share and without regard to class,
together with the holders of all other classes of stock entitled to attend such
meetings, to cast one vote for each outstanding share of Common Stock so held
upon any matter properly considered and acted upon by the stockholders, voting
together as a single class, except as otherwise required by law.
    
 
   
     Liquidation Rights.  In the event of any dissolution, liquidation, or
winding up of the Company, whether voluntary or involuntary, the holders of the
Common Stock and holders of any class or series of stock entitled to participate
therewith as to the distribution of assets including the Class B Common Stock,
shall become entitled to participate in the distribution of any assets of the
Company remaining after the Company shall have paid, or provided for payment of,
all debts and liabilities of the Company and after the Company shall have paid,
or set aside for payment, to the holders of any class of stock having preference
over the Common Stock and the Class B Common Stock in the event of dissolution,
liquidation or winding up, the full preferential amounts, if any, to which they
are entitled.
    
 
   
     Dividends.  Dividends may be paid on the Common Stock and the Class B
Common Stock and on any class or series of stock entitled to participate
therewith as to dividends, but only when and as declared by the Board of
Directors. Holders of Common Stock and Class B Common Stock will participate as
one class with respect to any dividends declared and paid on the Common Stock.
    
 
   
     Other Rights.  The Certificate does not give holders of Common Stock
preemptive or other subscription or conversion rights. Shares of Class B Common
Stock are subject to the conversion provisions described below. The shares of
Class B Common Stock are not transferable, except to a holder's spouse, parents,
siblings, lineal descendants, a trust for the benefit of any such persons or as
determined by will or the laws of descent.
    
 
   
     Conversion Rights of Class B Common Stock.  Each share of Class B Common
Stock shall automatically convert into Common Stock (i) at the ratio of
shares of Common Stock for each share of Class B Common Stock upon the
attainment of the Conversion Prices or (ii) if not converted pursuant to
subparagraph (i), on a one-for-one basis upon the      anniversary of the date
of this Prospectus. The shares of Class B Common Stock
    
 
                                       37
<PAGE>   39
 
   
convertible pursuant to subparagraph (i) above will convert in five increments
of up to      shares of Class B Common Stock (20% of the total number of shares
of Class B Common Stock issued) upon the attainment of each of the five
specified Conversion Prices. Upon each such conversion, each holder of Class B
Common Stock will be deemed to have converted a pro rata share of such Class B
Common Stock then outstanding. The Conversion Prices shall be established at
premiums to the initial public offering price, and will be deemed to have been
achieved at the end of the trading day on which the average closing price of the
Common Stock for the preceding   consecutive trading days exceeds such
Conversion Price. The closing prices will be those reported on the Nasdaq
National Market, or such other reported over-the-counter market or an exchange,
as applicable. The initial Conversion Price is equal to 150% of the price to
public in the Offering, and each of the subsequent Conversion Prices is equal to
120% of the preceding Conversion Price. Therefore, assuming the price to public
in the Offering is the mid-point of the estimated initial public offering price
range ($     ), the five Conversion Prices at which up to        shares of the
outstanding Class B Common Stock shall be automatically converted to Common
Stock are $     , $     , $     , $     and $     , respectively. Upon each
conversion, all fractional shares shall be paid in cash based upon the
consecutive trading day average closing price. In the event that there are any
shares of Class B Common Stock outstanding on the      anniversary of the date
of this Prospectus, all such shares shall automatically convert into an equal
number of shares of Common Stock. The holders of the Class B Common Stock may
convert each share of Class B Common Stock into one share of Common Stock at any
time prior to the      anniversary date of this Prospectus.
    
 
PREFERRED STOCK
 
   
     The Certificate authorizes the Board of Directors, from time to time and
without any stockholder action or approval, to provide for the issuance of up to
       shares of Preferred Stock, in one or more series, and to fix the relative
rights and preferences of the shares, including voting powers, dividend rights,
liquidation preferences, redemption rights and conversion privileges. As of the
date hereof, the Board of Directors has not provided for the issuance of any
series of such Preferred Stock, and there are no agreements or understandings
for the issuance of any such Preferred Stock. Because of its broad discretion
with respect to the creation and issuance of Preferred Stock without stockholder
approval, the Board of Directors could adversely affect the voting power of the
holders of Common Stock and Class B Common Stock and, by issuing shares of
Preferred Stock with certain voting, conversion and/or redemption rights, could
discourage any attempt to obtain control of the Company.
    
 
WARRANTS
 
   
     Warrants for the purchase of 515,000 shares of Common Stock have been
issued and are outstanding or will be issued pursuant to the Merger. The
exercise price per share pursuant to each of the warrants is equal to (i) the
initial public offering price in the Offering, (ii) the initial public offering
price net of underwriting discount, or (iii) $0.01 per share. For a more
detailed discussion of such warrants, see "Certain Transactions" and
"Underwriting."
    
 
REGISTRATION RIGHTS
 
   
     The Founding Practices have contracted to receive shares of Common Stock
upon the closing of the Combination Transactions pursuant to the terms and
conditions of the acquisition agreements between OrthAlliance and each Founding
Practice. Such agreements set forth certain incidental registration rights for
the Founding Practices, whereby the Company is obligated to use reasonable
efforts to register shares issued as consideration to a Founding Practice if the
Company initiates a public offering and files a registration statement in
connection therewith anytime within 24 months of the closing of the acquisition
of the operating assets or capital stock of the Founding Practice; provided,
however, that such registration rights are subject to any terms, conditions or
limitations required by any underwriter retained by the Company in connection
with such underwritten public offering, and such registration rights may not be
exercised in connection with a registration statement filed by the Company in
connection with the registration of shares issued pursuant to (i) an employee
stock purchase or option plan or (ii) any acquisition or proposed acquisition by
the Company. Each Founding
    
 
                                       38
<PAGE>   40
 
Practice shall bear its proportionate share of underwriters' commissions and
discounts, and shall bear the costs and fees of attorneys and accountants it
retains.
 
   
     The holders of shares of Common Stock issued upon the exercise of the
warrants issued to Mr. Wilfong, Mr. Garces and J. C. Bradford & Co. (the
"Bradford Warrant") have associated incidental registration rights pursuant to
which the Company is obligated to use reasonable efforts to register such shares
if the Company initiates a public offering and files a registration statement in
connection therewith after the date of this Prospectus, excluding the
registration of shares issued pursuant to (i) an employee stock purchase or
option plan or (ii) any acquisition or proposed acquisition by the Company. The
fees and costs of any registration of Common Stock issued pursuant to the
exercise of the Bradford Warrant will be borne by the Company.
    
 
CERTAIN PROVISIONS OF THE CERTIFICATE, BYLAWS AND DELAWARE LAW
 
     Classification of Board of Directors.  The Certificate and the Bylaws of
the Company divide the Board of Directors into three classes, designated Class
I, Class II and Class III, respectively, each class to be as nearly equal in
number as possible. The term of Class I, Class II and Class III directors will
expire at the 1998, 1999 and 2000 annual meetings of stockholders, respectively,
and in all cases directors elected will serve until their respective successors
are elected and qualified. At each annual meeting of stockholders, directors
will be elected to succeed those in the class whose terms then expire, with each
director so elected to serve for a term expiring at the third succeeding annual
meeting of stockholders after such director's election, and until the director's
successor is elected and qualified. Thus, directors elected stand for election
only once in three years.
 
     Additional Directorships, Vacancies and Removal of Directors.  The Bylaws
of the Company provide that the Board of Directors shall consist of up to nine
members. The Certificate and the Bylaws authorize the Board of Directors to
create additional directorships and abolish any vacant directorships.
Newly-created directorships and vacancies may be filled by a majority of
directors then in office to hold office until the next annual meeting of
stockholders, and until their successors shall be elected and qualified. In
addition, in accordance with the DGCL provisions pertaining to a company whose
Board of Directors is classified, the Company's Certificate and Bylaws provide
that directors may be removed only for cause by vote of the holders of a
majority of the shares entitled to vote at an election of directors.
 
     Advance Notice Requirements for Stockholder Proposals and Director
Nominations.  The Bylaws require an advance notice procedure for the nomination,
other than by or at the direction of the Board of Directors or the Nominating
Committee thereof, of candidates for election as directors (the "Nomination
Procedure"), as well as for other stockholder proposals to be considered at
annual stockholders' meetings. Notice to the Company from a stockholder who
proposes to nominate a person at a meeting for election as a director generally
must be given not less than 120 nor more than 150 days prior to the anniversary
of the date notice of the annual meeting of stockholders was given in the
preceding year and must contain: (i) the name and record address of the
stockholder who intends to make the nomination; (ii) the name, age and residence
address of the nominee; (iii) the principal occupation or employment of the
nominee; (iv) the class, series and number of shares held of record,
beneficially and by proxy, by the stockholder and the nominee as of the record
date of such meeting (if such record date is publicly available) and as of the
date of such notice; and (v) such other information relating to the nominee
proposed by such stockholder as is required to be included if the Company is
then subject to Regulation 14A under the Securities Exchange Act of 1934,
including the written consent of each nominee to be named in the proxy statement
and to serve as a director of the Company if so elected. The presiding officer
of the meeting may refuse to acknowledge the nomination of any person not made
in compliance with the Nomination Procedure. Similar advance notice must be
given of any other proposed business which a stockholder proposes to bring
before an annual meeting of stockholders. Such notice must contain (i) a brief
description of the business desired to be brought before the meeting and the
reasons for conducting such business at the meeting, (ii) the name and record
address of the stockholder proposing such business, (iii) the class, series and
number of shares of the Company's stock which are held of record, beneficially
and by proxy by the stockholder as of the record date of such meeting (if such
record date is publicly available) and as of the date of such notice, (iv) a
description of all arrangements or understandings between the stockholder and
any other person or persons (naming such person or persons) in connection with
the proposing of such business by the stockholder, and (v) any material interest
of the stockholder in such business. The purpose of requiring advance notice is
to afford the Board of Directors an
 
                                       39
<PAGE>   41
 
opportunity to consider the qualifications of the proposed nominees or the
merits of other stockholder proposals and, to the extent deemed necessary or
desirable by the Board of Directors, to inform stockholders about those matters.
Although the advance notice provisions do not give the Board of Directors any
power to approve or disapprove of stockholder nominations or proposals for
action by the Company, they may have the effect of precluding a contest for the
election of directors or the consideration of stockholder proposals if the
procedures established by the Bylaws are not followed and the effect of
discouraging or deterring a third party from conducting a solicitation of
proxies to elect its own slate of directors or to approve its own proposals,
without regard to whether consideration of such nominees or proposals might be
harmful or beneficial to the Company and its stockholders.
 
     Statutory Business Combination Provision.  Section 203 of the DGCL prevents
an "interested stockholder" (defined in Section 203, generally, as a person
owning 15% or more of a corporation's outstanding voting stock) from engaging in
a "business combination" (as defined in Section 203) with a publicly-held
Delaware corporation for three years following the date such person became an
interested stockholder unless (i) before such person became an interested
stockholder, the board of directors of the corporation approved the transaction
in which the interested stockholder became an interested stockholder or approved
the business combination; (ii) upon consummation of the transaction that
resulted in the interested stockholder's becoming an interested stockholder, the
interested stockholder owns at least 85% of the voting stock of the corporation
outstanding at the time the transaction commenced (excluding stock held by
directors who are also officers of the corporation and by employee stock plans
that do not provide employees with the right to determine confidentially whether
shares held subject to the plan will be tendered in a tender or exchange offer);
or (iii) following the transaction in which such person became an interested
stockholder, the business combination is approved by the board of directors of
the corporation and authorized at a meeting of stockholders by the affirmative
vote of the holders of two-thirds of the outstanding voting stock of the
corporation not owned by the interested stockholder.
 
   
     Anti-takeover Effects.  The foregoing provisions of the Certificate and
Bylaws and DGCL could discourage potential acquisition proposals and could delay
or prevent a change in control of the Company. These provisions are intended to
enhance the continuity and stability of the Board of Directors and the policies
formulated by the Board of Directors and to discourage certain types of
transactions that may involve an actual or threatened change in control of the
Company. These provisions are also designed to reduce the vulnerability of the
Company to an unsolicited acquisition proposal and to discourage certain tactics
that may be used in proxy fights. However, such provisions may discourage third
parties from making tender offers for the Company's shares. As a result, the
market price of the Common Stock may not benefit from any premium that might
occur in anticipation of a potential or actual change in control. Such
provisions also may have the effect of preventing changes in the management of
the Company.
    
 
TRANSFER AGENT AND REGISTRAR
 
     The transfer agent and registrar for the Common Stock is
          .
 
                        SHARES ELIGIBLE FOR FUTURE SALE
 
     Prior to the Offering, there has not been any public market for securities
of the Company. No prediction can be made as to the effect, if any, that market
sales of shares of Common Stock or the availability of shares of Common Stock
for sale will have on the market price prevailing from time to time. Sales of
substantial amounts of Common Stock of the Company in the public market after
the restrictions described below lapse could adversely affect the prevailing
market price and the ability of the Company to raise equity capital in the
future.
 
   
     Upon completion of the Offering, the Company will have           shares of
Common Stock and           shares of Class B Common Stock outstanding. Of these
shares, the           shares of Common Stock (          shares if the
Underwriters' over-allotment option is exercised in full) sold in the Offering
will be freely tradeable without restriction or limitation under the Securities
Act, except for shares purchased by "affiliates" of the Company as that term is
defined in Rule 144 under the Securities Act (which may generally be sold only
in compliance with Rule 144).
    
 
                                       40
<PAGE>   42
 
   
     The Founding Practices have contracted to receive           shares of
Common Stock upon the closing of the Combination Transactions in consideration
for certain assets of the Founding Practices and entering into Management
Agreements. Such shares have incidental registration rights pursuant to the
purchase and sale agreements between the Founding Practices and OrthAlliance,
whereby the Company is obligated to use reasonable efforts to register shares
issued as consideration to a Founding Practice if the Company undertakes a
public offering and files a registration statement in connection therewith any
time within 24 months of the closing of the acquisition of the operating assets
of the Founding Practice; provided, however, that such registration rights are
subject to any terms, conditions and limitations required by any underwriter
retained by the Company in connection with such underwritten public offering,
and such registration rights may not be exercised in connection with
registration statements filed by the Company in connection with the registration
of shares issued pursuant to (i) employee stock purchase or option plans or (ii)
any acquisition or proposed acquisition by the Company.
    
 
   
     The shares of Common Stock received by the Founding Practices, the
remaining           issued and outstanding shares of Common Stock and the issued
and outstanding shares of Class B Common Stock are deemed "restricted shares"
under Rule 144 since they were originally issued and sold by the Company in
private transactions in reliance upon exemptions from the registration
provisions of the Securities Act. The holders of restricted shares will not be
eligible to sell such shares pursuant to Rule 144 until the expiration of one
year from the date such restricted shares were acquired. Additional restrictions
on transferability apply to shares of Class B Common Stock. See "Description of
Capital Stock -- Common Stock."
    
 
     In general, under Rule 144 as currently in effect, a person (or persons
whose shares are aggregated), including persons deemed to be affiliates, whose
restricted shares have been fully paid for and held for at least one year from
the date of issuance by the Company may sell such securities in brokers'
transactions or directly to market makers, provided the number of shares sold in
any three-month period does not exceed the greater of 1% of the then outstanding
shares of Common Stock (          shares based on the number of shares to be
outstanding after the Offering) or the average weekly trading volume of the
Common Stock in the public market during the four calendar weeks preceding the
filing of the seller's Form 144. Sales under Rule 144 are also subject to the
availability of current public information concerning the Company. After two
years have elapsed from the date of issuance of restricted shares by the
Company, such shares generally may be sold without limitation by persons who
have not been affiliates of the Company for at least three months. Rule 144 also
provides that affiliates who are selling restricted shares for which they have
fully paid must nonetheless comply with the above restrictions applicable to
restricted shares, notwithstanding the holding period.
 
   
     All of the Founding Practices and the Company's officers, directors and
five percent (5%) or greater stockholders have agreed to enter into lock-up
agreements (the "Lock-up Agreements") generally providing that for a period of
365 days after the date of this Prospectus, they will not, except for the
exercise of stock options pursuant to the Stock Plans, directly or indirectly,
offer, sell, loan, pledge or otherwise dispose of, or grant any options or other
rights with respect to, any shares of Common Stock or any securities that are
convertible into or exchangeable or exercisable for Common Stock owned by them
without the prior written consent of J.C. Bradford & Co. Similarly, the Company
has agreed generally that, for a period of 365 days after the date of this
Prospectus, it will not, directly or indirectly, issue, offer, sell, grant
options to purchase or otherwise dispose of any of its equity securities or any
other securities convertible into or exchangeable or exercisable for its Common
Stock or any other equity security, except that the Company may grant stock
options under the Stock Plans and issue shares of Common Stock upon the exercise
of options previously granted.
    
 
   
     In addition to the restricted shares outstanding upon completion of the
Offering and the Combination Transactions, all of the approximately
shares of Common Stock which may be acquired upon the exercise of vested stock
options within 365 days following the date of this Prospectus (collectively, the
"Option Shares") are subject to the Lock-up Agreements but may be eligible for
resale following the expiration of the Lock-up Agreements (subject, in the case
of affiliates, to certain limitations) pursuant to Rule 701 under the Securities
Act or a Form S-8 registration statement to be filed by the Company under the
Securities Act. See "Management -- Stock Plans." In addition, all of the
approximately      shares of Common Stock that may be acquired upon the exercise
of warrants (including the Bradford Warrant) will be deemed restricted
securities and may be eligible for resale pursuant to Rule 144. Shares issuable
upon the exercise of such warrants have
    
 
                                       41
<PAGE>   43
 
   
associated incidental registration rights pursuant to which the Company is
obligated to use reasonable efforts to register such shares if the Company
undertakes an underwritten public offering and files a registration statement in
connection therewith after the date of this Prospectus, excluding the
registration of shares issued pursuant to (i) an employee stock purchase or
option plan or (ii) any acquisition or proposed acquisition by the Company.
    
 
     The Company intends to file a registration statement on Form S-8 to
register all shares of Common Stock issuable under the Company's stock option
plans, as soon as practicable after the date of this Prospectus, and the
Company's Form S-8 is expected to become effective immediately upon filing.
Shares covered by such registration statement will be eligible for sale in the
public market after the effective date of such registration statement and
following the expiration of the Lock-up Agreements, subject to Rule 144
limitations applicable to affiliates of the Company. See "Management -- Stock
Plans."
 
   
     In addition, the Company has filed a registration statement with respect to
2.5 million shares of Common Stock under the Securities Act for use in
connection with future acquisitions. These shares generally will be freely
tradable after their issuance by persons not affiliated with the Company unless
the Company contractually restricts their sale. The Company anticipates that the
agreements entered into in connection with its future acquisitions will restrict
the resale of all or a portion of the shares issued in those transactions for
varying periods of time.
    
 
                                       42
<PAGE>   44
 
                                  UNDERWRITING
 
     Pursuant to the Underwriting Agreement, and subject to the terms and
conditions thereof, the Underwriters named below, acting through J.C. Bradford &
Co., L.L.C. ("Bradford") as representative of the several Underwriters (the
"Representative"), have agreed, severally, to purchase from the Company the
number of shares of Common Stock set forth below opposite their respective
names.
 
<TABLE>
<CAPTION>
                                                              NUMBER OF
NAME OF UNDERWRITER                                            SHARES
- -------------------                                           ---------
<S>                                                           <C>
J.C. Bradford & Co..........................................
 
                                                               -------
          Total.............................................
                                                               =======
</TABLE>
 
     In the Underwriting Agreement, the Underwriters have agreed, subject to the
terms and conditions set forth therein, to purchase all shares of Common Stock
offered hereby if any of such shares are purchased.
 
     The Company has been advised by the Representative of the Underwriters that
the Underwriters propose initially to offer the shares of Common Stock to the
public at the public offering price set forth on the cover page of this
Prospectus and to certain dealers, who may include the Underwriters, at the
public offering price less a selling concession not in excess of $          per
share. The Underwriters may allow, and such dealers may reallow, a concession
not in excess of $          per share to certain other brokers or dealers. After
the Offering, the public offering price and such concessions may be changed by
the Representative. The Representative has informed the Company that the
Underwriters do not intend to confirm sales to accounts over which they exercise
discretionary authority.
 
     The Offering of the shares of Common Stock is made for delivery when, as
and if accepted by the Underwriters and subject to prior sale and to withdrawal,
cancellation or modification of the offer without notice. The Underwriters
reserve the right to reject any offer for the purchase of shares.
 
     The Company has granted the Underwriters an option, exercisable not later
than 30 days from the date of this Prospectus, to purchase up to an aggregate of
          additional shares of Common Stock to cover over-allotments, if any. To
the extent the Underwriters exercise the option, each of the Underwriters will
have a firm commitment to purchase approximately the same percentage thereof
which the number of shares of Common Stock to be purchased by it shown in the
table above bears to the total number of shares in such table, and the Company
will be obligated, pursuant to the option, to sell such shares to the
Underwriters. The Underwriters may exercise such option only to cover
over-allotments made in connection with the sale of the           shares of
Common Stock offered hereby. If purchased, the Underwriters will sell these
additional shares on the same terms as those on which the           shares are
being offered.
 
     Subject to applicable limitations, the Underwriters, in connection with the
Offering, may place bids for or make purchases of the Common Stock in the open
market or otherwise, for long or short account, or cover short positions
incurred, to stabilize, maintain, or otherwise affect the price of the Common
Stock, which may be higher than the price that might otherwise prevail in the
open market. There can be no assurance that the price of the Common Stock will
be stabilized, or that stabilizing, if commenced, will not be discontinued at
any time. Subject to applicable limitations, the Underwriters may also place
bids or make purchases on behalf of the underwriting syndicate to reduce a short
position created in connection with the Offering.
 
                                       43
<PAGE>   45
 
   
     Upon the purchase by the Underwriters of the Common Stock being offered
hereby, the Company has agreed to sell to Bradford for a purchase price of $0.01
per underlying share of Common Stock, the Bradford Warrant to purchase up to
 3/4 of 1% of the shares of Common Stock outstanding on the closing date of the
Offering at an exercise price per share equal to the higher of the initial
public offering price or the closing bid price of the first trading day after
the date of this Prospectus. The warrant exercise price has been determined by
negotiation between the Company and Bradford as to be within the Conduct Rules
of the National Association of Securities Dealers, Inc. and various state
authorities. The Bradford Warrant has a term of five years from the closing date
of the Offering, is non-transferrable, and is not exercisable until the earlier
of a subsequent public offering of the Common Stock or 24 months after the date
of this Prospectus. The terms upon which the Company will be able to obtain
additional equity capital may be adversely affected since Bradford can be
expected to exercise or exchange them at a time when the Company would, in all
likelihood, be able to obtain any needed capital on terms more favorable to the
Company than those provided in the Bradford Warrant. Any profit realized by
Bradford on the sale of the underlying shares of Common Stock may be deemed
additional underwriting compensation. For a discussion of the registration
rights associated with the Bradford Warrant, see "Description of Capital
Stock -- Registration Rights."
    
 
     The Company intends to apply for listing of the Common Stock on the Nasdaq
National Market. Prior to this Offering, there has been no public market for the
Common Stock. The Offering price has been determined by negotiation among the
Company and the Representative. In determining such price, consideration was
given to, among other things, the financial and operating history and trends of
the Company, the experience of its management, the position of the Company in
its industry, the Company's prospects and the Company's financial results.
Additionally, consideration was given to the status of the securities markets,
market conditions for new offerings of securities and the prices of similar
securities of comparable companies. Bradford intends to act as a market maker
with regard to the Common Stock.
 
   
     Pursuant to the Lock-up Agreements, all of the Company's officers and
directors and 5% or greater stockholders have agreed with the Representative
that they will not, except for the exercise of stock options pursuant to the
Stock Plans described in this Prospectus, directly or indirectly, offer, sell,
loan, pledge or otherwise dispose of, or grant any options or other rights with
respect to, any shares of Common Stock or any securities that are convertible
into, or exchangeable or exercisable for, Common Stock owned by them for a
period of 365 days following the date of this Prospectus, without the prior
written consent of Bradford. Similarly, the Company has agreed generally that,
for a period of 365 days after the date of this Prospectus, it will not,
directly or indirectly, issue, offer, sell, grant options to purchase or
otherwise dispose of any of its equity securities or any other securities
convertible into or exchangeable or exercisable for its Common Stock or any
other equity security, except that the Company may grant stock options under its
Stock Plans and issue shares of Common Stock upon the exercise of options
previously granted. Bradford may, in its sole discretion and at any time without
notice, release all or any portion of the securities subject to the Lock-up
Agreements. After such 365-day period, such persons will be entitled to sell,
distribute or otherwise dispose of the Common Stock or options to acquire Common
Stock, subject to the provisions of applicable securities laws. See "Shares
Eligible for Future Sale."
    
 
     The Underwriting Agreement provides that the Company will indemnify the
Underwriters and controlling persons, if any, against certain liabilities,
including labilities under the Securities Act, or will contribute to payments
that the Underwriters or any such controlling persons may be required to make in
respect thereof.
 
                                 LEGAL MATTERS
 
     Certain legal matters with respect to the validity of the shares of Common
stock are being passed upon for the Company by Nelson Mullins Riley &
Scarborough, L.L.P., Atlanta, Georgia, special securities counsel to the
Company. Certain legal matters will be passed upon for the Underwriters by Bass,
Berry & Sims PLC, Nashville, Tennessee.
 
                                       44
<PAGE>   46
 
                                    EXPERTS
 
   
     The financial statements of Premier Orthodontic Group, Inc., US Orthodontic
Care, Inc. and OrthAlliance, Inc. as of December 31, 1996 included in this
Prospectus and elsewhere in the Registration Statement have been audited by
Arthur Andersen LLP, independent public accountants, as indicated in their
reports with respect thereto and are included herein in reliance upon the
authority of said firm as experts in giving said reports.
    
 
                             ADDITIONAL INFORMATION
 
   
     The Company has filed with the Commission a Registration Statement, on Form
S-1 (together with all exhibits, schedules and amendments relating thereto, the
"Registration Statement") under the Securities Act with respect to the Common
Stock offered hereby. This Prospectus, which is a part of the Registration
Statement, does not contain all of the information set forth in the Registration
Statement and the exhibits and schedules thereto. For further information with
respect to the Company and the Common Stock, reference is hereby made to the
Registration Statement and the exhibits and schedules filed as a part thereof.
Statements contained in this Prospectus concerning the provisions or contents of
any contract, agreement or any other document referred to herein are not
necessarily complete. With respect to each such contract, agreement or document
filed as an exhibit to the Registration Statement, reference is made to such
exhibit for a more complete description of the matters involved, and each
statement shall be deemed qualified in its entirety by such reference to the
copy of the applicable document filed with the Commission. The Registration
Statement, including the exhibits and schedules thereto, may be inspected
without charge at the Public Reference Section of the Commission at Room 1024,
Judiciary Plaza, 450 Fifth Street, N.W., Washington, D.C. 20549 and at the
following Regional Offices of the Commission: New York Regional Office, 7 World
Trade Center, 13th Floor, New York, New York 10048; and Chicago Regional Office,
500 West Madison Street, Suite 1400, Chicago, Illinois 60661. Copies of the
Registration Statement and the exhibits and schedules thereto can be obtained
from the Public Reference Section of the Commission upon payment of prescribed
fees. The Registration Statement, including the exhibits and schedules thereto,
is also available on the Commission's Web site at http://www.sec.gov. In
addition, the Company will make application for the Common Stock to be listed
for trading on the Nasdaq National Market. Upon listing, periodic reports, proxy
material and other information concerning the Company, when filed, may be
inspected at the offices of the Nasdaq Operations, 1735 K Street, N.W.,
Washington, D.C.
    
 
   
     The Company intends to furnish its stockholders with annual reports
containing financial statements audited by the Company's independent public
accountants.
    
 
                                       45
<PAGE>   47
 
                         INDEX TO FINANCIAL STATEMENTS
 
   
<TABLE>
<CAPTION>
                                                              PAGE
                                                              ----
<S>                                                           <C>
Unaudited Pro Forma Combined Financial Statements...........   F-2
  Unaudited Pro Forma Combined Balance Sheet as of March 31,
     1997...................................................   F-3
  Unaudited Pro Forma Combined Statement of Operations for
     the Three Months Ended March 31, 1997..................   F-4
  Unaudited Pro Forma Combined Statement of Operations for
     the Year Ended December 31, 1996.......................   F-5
  Notes to Unaudited Pro Forma Combined Financial
     Statements.............................................   F-6
OrthAlliance, Inc.
  Report of Independent Public Accountants..................   F-8
  Balance Sheets as of December 31, 1996 and March 31,
     1997...................................................   F-9
  Statements of Stockholders' Equity For the Period From
     Inception (October 21, 1996) to December 31, 1996 and
     for the Three Months Ended March 31, 1997..............  F-10
  Notes to Financial Statements.............................  F-11
US Orthodontic Care, Inc.
  Report of Independent Public Accountants..................  F-13
  Balance Sheets as of December 31, 1996 and March 31,
     1997...................................................  F-14
  Statements of Operations For the Period From Inception
     (February 7, 1996) to December 31, 1996 and for the
     Three Months Ended March 31, 1997......................  F-15
  Statements of Shareholders' (Deficit) Equity For the
     Period From Inception (February 7, 1996) to December
     31, 1996 and for the Three Months Ended March 31,
     1997...................................................  F-16
  Statements of Cash Flows For the Period From Inception
     (February 7, 1996) to December 31, 1996 and for the
     Three Months Ended March 31, 1997......................  F-17
  Notes to Financial Statements.............................  F-18
Premier Orthodontic Group, Inc.
  Report of Independent Public Accountants..................  F-23
  Balance Sheets as of December 31, 1996 and March 31,
     1997...................................................  F-24
  Statements of Operations For the Period From Inception
     (November 26, 1996) to December 31, 1996 and for the
     Three Months Ended March 31, 1997......................  F-25
  Statements of Changes in Owners' Deficit For the Period
     From Inception (November 26, 1996) to December 31, 1996
     and for the Three Months Ended March 31, 1997..........  F-26
  Statements of Cash Flows For the Period From Inception
     (November 26, 1996) to December 31, 1996 and for the
     Three Months Ended March 31, 1997......................  F-27
  Notes to Financial Statements.............................  F-28
</TABLE>
    
 
                                       F-1
<PAGE>   48
 
                               ORTHALLIANCE, INC.
 
               UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS
 
   
     Simultaneously with and as a condition to the closing of the proposed
public offering (the "Offering"), OrthAlliance, Inc. ("OrthAlliance") will
acquire certain operating assets of separate orthodontic practices
(collectively, the "Founding Practices") in exchange for cash and shares of
Class A common stock, $.001 par value per share (the "Common Stock") and enter
into long-term management or consulting services agreements with the Founding
Practices (the "Combination Transactions"). The number of shares of Common Stock
issued in the Combination Transactions will depend on the Offering price of the
Common Stock. As a result of the merger of Premier Orthodontic Group, Inc.
("Premier") and US Orthodontic Care, Inc. ("USOC") with and into OrthAlliance,
effective prior to the closing of the Offering (the "Merger"), OrthAlliance
succeeds to the rights of Premier and USOC under agreements with the Founding
Practices.
    
 
     The following unaudited pro forma combined financial statements give effect
to the Merger and the Combination Transactions, and are based upon the
historical financial statements of OrthAlliance, Premier, USOC, and the Founding
Practices as a group.
 
   
     The Unaudited Pro Forma Combined Statement of Operations for the three
months ended March 31, 1997 and the year ended December 31, 1996 gives effect to
the Merger and the Combination Transactions as if such events had occurred on
January 1, 1997. The Unaudited Pro Forma Combined Balance Sheet gives effect as
if such events had occurred on March 31, 1997. The unaudited pro forma combined
financial statements should be read in conjunction with other financial
information, including the financial statements of USOC, Premier and
OrthAlliance, included elsewhere in this Prospectus.
    
 
     The Company will not employ orthodontists or control the practice of
orthodontics. As the Company will not be acquiring the future patient revenues
earned by the Founding Practices, the Combination Transactions are not deemed to
be business combinations. In accordance with the Securities and Exchange
Commission's Staff Accounting Bulletin No. 48, "Transfers of Nonmonetary Assets
by Promoters or Shareholders," the Combination Transactions will be accounted
for at the historical cost basis with the shares of common stock to be issued in
those transactions being valued at the historical cost of the nonmonetary assets
acquired net of liabilities assumed.
 
   
     The unaudited pro forma combined financial statements are presented for
illustrative purposes only and are not necessarily indicative of the operating
results or financial position that would have been achieved if the Combination
Transactions had been consummated on the dates indicated, nor are they
necessarily indicative of the future operating results of the Company. The
unaudited pro forma combined financial information does not give effect to: (1)
cost savings or integration which may result from the Combination Transactions;
(2) acquisitions of practices which would have occurred during the year; or (3)
the Offering (including net proceeds and cash payments to the Founding
Practices) which will occur simultaneously with the Combination Transactions.
    
 
                                       F-2
<PAGE>   49
 
                               ORTHALLIANCE, INC.
                   UNAUDITED PRO FORMA COMBINED BALANCE SHEET
 
   
                                 MARCH 31, 1997
    
                      (IN THOUSANDS, EXCEPT SHARE AMOUNTS)
 
   
<TABLE>
<CAPTION>
                                                                            COMBINED                      PRO
                                                                            FOUNDING     PRO FORMA       FORMA
                                          ORTHALLIANCE    USOC    PREMIER   PRACTICES   ADJUSTMENTS     COMBINED
                                          ------------   ------   -------   ---------   -----------     --------
<S>                                       <C>            <C>      <C>       <C>         <C>             <C>
                                                     ASSETS
CURRENT ASSETS
  Cash and cash equivalents.............     $   --      $  315    $ 896     $ 3,815     $ (3,815)(1)   $ 1,211
  Patient receivables, net..............         --          --       --       4,172           --         4,172
  Unbilled patient receivables, net.....         --          --       --       3,265           --         3,265
  Deferred income taxes.................         --          --       --          --        1,250(2)      1,250
  Other current assets..................         --           2       --       2,079       (1,633)(1)       448
                                             ------      ------    -----     -------     --------       -------
         Total current assets...........         --         317      896      13,331       (4,198)       10,346
  Property, equipment and improvements,
    net.................................         --          30       24       5,577       (2,780)(1)     2,851
  Other assets..........................         --          --        5       1,118       (1,118)(1)         5
                                             ------      ------    -----     -------     --------       -------
         Total assets...................     $   --      $  347    $ 925     $20,026     $ (8,096)      $13,202
                                             ======      ======    =====     =======     ========       =======
                                             LIABILITIES AND EQUITY
CURRENT LIABILITIES
  Amounts drawn in excess of cash.......     $   --      $   --    $  --     $   216     $   (216)(1)   $    --
  Accounts payable and other current
    liabilities.........................         --         303      518         719         (541)(1)       999
  Patient prepayments...................         --          --       --       1,325           --         1,325
  Deferred income taxes.................         --          --       --          --          215(2)        215
  Current portion of long-term debt.....         --          --       --       1,848          948(1)      2,796
                                             ------      ------    -----     -------     --------       -------
         Total current liabilities......         --         303      518       4,108          406         5,335
  Long-term debt, less current
    portion.............................         --          --    1,000       3,130       (3,130)(1)     1,000
                                             ------      ------    -----     -------     --------       -------
         Total liabilities..............         --         303    1,518       7,238       (2,724)        6,335
                                             ------      ------    -----     -------     --------       -------
STOCKHOLDERS' EQUITY
  OrthAlliance, Inc.:
    Class A Common Stock
      $         par value;   shares
         authorized, one share issued
         and outstanding and     issued
         and outstanding pro forma......         --          --       --          --           --            --
    Class B Common Stock
      $         par value;   shares
         authorized, no shares issued
         and outstanding and     issued
         and outstanding pro forma......         --          --       --          --           --            --
    Additional paid-in capital..........         --          --       --          --        6,381(1)     10,538
                                                                                            1,035(2)
                                                                                            3,122(3)
    Warrants............................         --          --       --          --          590(3)        590
    Accumulated deficit.................         --          --       --          --       (4,261)(3)    (4,261)
  US Orthodontic Care, Inc.:
    Common Stock; no par value,
      10,000,000 shares authorized,
      2,471,714 shares issued and
      outstanding.......................         --          --       --          --           --            --
    Additional paid-in capital..........         --       3,122       --          --       (3,122)(3)        --
    Warrants............................         --         590       --          --         (590)(3)        --
    Accumulated deficit.................         --      (3,668)      --          --        3,668(3)         --
  Premier Orthodontic Group, Inc.:
    Accumulated deficit.................         --          --     (593)         --          593(3)         --
  Combined Founding Practices' Equity...         --          --       --      12,788      (12,788)(1)        --
                                             ------      ------    -----     -------     --------       -------
         Total stockholders' equity.....         --          44     (593)     12,788       (5,372)        6,867
                                             ------      ------    -----     -------     --------       -------
         Total liabilities and
           stockholders' equity.........     $   --      $  347    $ 925     $20,026     $ (8,096)      $13,202
                                             ======      ======    =====     =======     ========       =======
</TABLE>
    
 
  See accompanying notes to unaudited pro forma combined financial statements.
 
                                       F-3
<PAGE>   50
 
   
                               ORTHALLIANCE, INC.
    
 
   
              UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS
    
 
   
                   FOR THE THREE MONTHS ENDED MARCH 31, 1997
    
   
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
    
 
   
<TABLE>
<CAPTION>
                                                                     COMBINED                      PRO
                                                                     FOUNDING      PRO FORMA      FORMA
                                  ORTHALLIANCE    USOC     PREMIER   PRACTICES    ADJUSTMENTS    COMBINED
                                  ------------   -------   -------   ---------    -----------    --------
<S>                               <C>            <C>       <C>       <C>          <C>            <C>
REVENUE
  Management service revenue....    $    --      $    --   $    --    $    --      $ 11,287(7)   $11,287
  Patient service revenue.......         --           --        --     15,603       (15,603)(8)       --
  Orthodontist compensation.....         --           --        --     (6,828)        6,828(8)        --
                                    -------      -------   -------    -------      --------      -------
          Net revenue...........         --           --        --      8,775         2,512       11,287
EXPENSE
  Direct expenses:
     Salaries, wages and
       benefits.................         --          395       212      4,100            51(4)     4,758
     Orthodontic supplies and
       lab......................         --           --        --        956            --          956
     Rent.......................         --           --        --      1,076             6(4)     1,082
     Advertising and
       marketing................         --           --        --        320            27(4)       347
                                    -------      -------   -------    -------      --------      -------
          Total direct
            expenses............         --          395       212      6,452            84        7,143
  General and administrative....         --          148       130      2,148            --        2,426
  Depreciation and
     amortization...............         --           --        --        175             2(4)       177
                                    -------      -------   -------    -------      --------      -------
          Operating (loss)
            income..............         --         (543)     (342)        --         2,426        1,541
  Other income (expense):
     Interest income (expense),
       net......................         --            7         4       (102)          102(6)        11
     Other income...............         --           --        --        (38)           38(6)        --
     Gain on sale of assets.....         --           --        --          5            --            5
                                    -------      -------   -------    -------      --------      -------
          Income (loss) before
            provision for income
            taxes...............         --         (536)     (338)      (135)        2,566        1,557
Provision for income taxes......         --           --        --         --           592(10)      592
                                    -------      -------   -------    -------      --------      -------
Net income (loss)...............    $    --      $  (536)  $  (338)   $  (135)     $  1,974      $   965
                                    =======      =======   =======    =======      ========      =======
Net income per share............                                                                 $
                                                                                                 =======
Number of shares used in net
  income per share
  calculation(11)...............
                                                                                                 =======
</TABLE>
    
 
   
See the accompanying notes to unaudited pro forma combined financial statements.
    
 
                                       F-4
<PAGE>   51
 
                               ORTHALLIANCE, INC.
 
              UNAUDITED PRO FORMA COMBINED STATEMENT OF OPERATIONS
 
   
                      FOR THE YEAR ENDED DECEMBER 31, 1996
    
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
 
   
<TABLE>
<CAPTION>
                                                                     COMBINED                      PRO
                                                                     FOUNDING      PRO FORMA      FORMA
                                  ORTHALLIANCE    USOC     PREMIER   PRACTICES    ADJUSTMENTS    COMBINED
                                  ------------   -------   -------   ---------    -----------    --------
<S>                               <C>            <C>       <C>       <C>          <C>            <C>
REVENUE
  Management service revenue....    $    --      $    --   $    --    $    --      $ 45,690(7)   $45,690
  Patient service revenue.......         --           --        --     61,327       (61,327)(8)       --
  Orthodontist compensation.....         --           --        --    (25,554)       25,554(8)        --
                                    -------      -------   -------    -------      --------      -------
          Net revenue...........         --           --        --     35,773         9,917       45,690
EXPENSE
  Direct expenses:
     Salaries, wages and
       benefits.................         --        1,878       240     15,299           871(4)    17,208
                                                                                     (1,080)(9)
     Orthodontic supplies and
       lab......................         --           --        --      5,248            --        5,248
     Rent.......................         --           --        --      4,178            24(4)     4,202
     Advertising and
       marketing................         --           --        --      1,313           108(4)     1,421
                                    -------      -------   -------    -------      --------      -------
          Total direct
            expenses............         --        1,878       240     26,038           (77)      28,079
  General and administrative....         --          804        15      8,873            15(4)     9,707
  Depreciation and
     amortization...............         --           --        --        862            10(4)       872
                                    -------      -------   -------    -------      --------      -------
          Operating (loss)
            income..............         --       (2,682)     (255)        --         9,969        7,032
  Other income (expense):
     Interest income (expense),
       net......................         --           --        --       (347)          347(6)        --
     Postponed offering costs...         --         (450)       --         --           450(5)        --
     Other income...............         --           --        --        114          (114)(6)       --
     Gain on sale of assets.....         --           --        --        122            --          122
                                    -------      -------   -------    -------      --------      -------
          Income (loss) before
            provision for income
            taxes...............         --       (3,132)     (255)      (111)       10,652        7,154
Provision for income taxes......         --           --        --         --         2,719(10)    2,719
                                    -------      -------   -------    -------      --------      -------
Net income (loss)...............    $    --      $(3,132)  $  (255)   $  (111)     $  7,933      $ 4,435
                                    =======      =======   =======    =======      ========      =======
Net income per share............                                                                 $
                                                                                                 =======
Number of shares used in net
  income per share
  calculation(11)...............
                                                                                                 =======
</TABLE>
    
 
See the accompanying notes to unaudited pro forma combined financial statements.
 
                                       F-5
<PAGE>   52
                               ORTHALLIANCE, INC.
 
           NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS
               (IN THOUSANDS, EXCEPT SHARE AND PER SHARE AMOUNTS)
 
     The following is a summary of the adjustments reflected in the unaudited
combined pro forma financial statements:
 
   
     (1)  Reflects the issuance of        shares of Common Stock of the Company
          in exchange for substantially all of the operating assets of the
          Founding Practices, and to remove certain assets, liabilities and
          owners' equity not purchased/assumed as part of the Combination
          Transactions, based on an assumed Offering price of $  . The Founding
          Practices will receive up to twenty percent of their practice asset
          values in cash and the remainder in Common Stock. The assets purchased
          and liabilities assumed from the Founding Practices reflected herein
          are as follows:
    
 
   
<TABLE>
          <S>                                                           <C>
          Patient receivables, net of allowances......................  $ 7,437
          Other current assets........................................      446
          Property, plant and improvements, net.......................    2,797
          Accounts payable and other current liabilities..............      178
          Patient prepayments.........................................    1,325
          Current portion of long-term debt...........................    2,796
</TABLE>
    
 
   
          This entry excludes cash to be paid to the Founding Practices of
          approximately $14,000 for the purchase of the practices' assets which
          will be paid out of the proceeds of the Offering.
    
 
   
     (2)  Reflects the establishment of deferred income taxes for the Company
          after the Combination Transactions.
    
 
   
     (3)  Reflects the transfer of stockholders' equity and the accumulated
          deficit of USOC and Premier to OrthAlliance as part of the Merger.
    
 
   
     (4)  Reflects the incremental costs associated with the Company providing
          management services to the Founding Practices in the first year of
          operations. Pro forma salaries, wages and benefits includes $1,909
          related to management of OrthAlliance for the twelve months ended
          December 31, 1996 and $477 for the three months ended March 31, 1997.
          Historical amounts for USOC include $250 of compensation expense
          related to warrants for the purchase of Common Stock issued to an
          officer in the first quarter of 1997.
    
 
   
     (5)  Eliminates one-time postponed offering costs of USOC. USOC incurred
          costs associated with a proposed initial public offering in 1996.
          Because this offering did not occur, USOC expensed those items.
    
 
   
     (6)  Removes income and expense items of the Founding Practices which would
          not have been activities of the Company had the Combination
          Transactions occurred as of the first day of the periods presented.
    
 
   
     (7)  Reflects management service fees of the Company calculated in
          accordance with the management service agreements anticipated to be
          entered into with the Founding Practices, as applied to the historical
          operating results of the individual Founding Practices for the periods
          indicated. Management service revenue includes management fees and the
          reimbursed operating expenses of the Allied Practices. See
          "Managements Discussion and Analysis -- Overview."
    
 
   
     (8)  Eliminates patient service revenue and orthodontist compensation at
          the Founding Practice level.
    
 
   
     (9)  Reflects the elimination of a one-time compensation expense related to
          issuances of common stock of USOC to the founders.
    
 
   
     (10) Reflects federal and state income taxes using a 38% tax rate, assuming
          the Company is a C corporation after the Combination Transactions.
    
 
                                       F-6
<PAGE>   53
 
   
                               ORTHALLIANCE, INC.
    
 
   
           NOTES TO UNAUDITED PRO FORMA COMBINED FINANCIAL STATEMENTS
    
 
   
     (11) The number of shares of Common Stock used in the pro forma net income
          per share calculation are determined as follows:
    
 
<TABLE>
<CAPTION>
 
<S>                                                           <C>
Shares to be issued to effect the Merger....................
Shares to be issued in the Combination Transactions.........
Shares to be issued in the Offering.........................
Shares that would be outstanding if outstanding options were
  exercised and the proceeds were used to repurchase shares
  at the assumed initial public offering price..............
                                                              -----------
          TOTAL.............................................
                                                              ===========
</TABLE>
 
                                       F-7
<PAGE>   54
 
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To OrthAlliance, Inc.:
 
     We have audited the accompanying balance sheet of ORTHALLIANCE, INC. (a
development-stage enterprise, a Delaware corporation, and formerly Premier
Orthodontic Holdings, Inc.) as of December 31, 1996 and the related statement of
stockholders equity for the period from inception (October 21, 1996) to December
31, 1996. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audit.
 
     We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of OrthAlliance, Inc. as of
December 31, 1996 and its operations from inception (October 21, 1996) to
December 31, 1996 in conformity with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Atlanta, Georgia
May 2, 1997
 
                                       F-8
<PAGE>   55
 
                               ORTHALLIANCE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
                                 BALANCE SHEET
    
 
   
<TABLE>
<CAPTION>
                                                              DECEMBER 31,      MARCH 31,
                                                                  1996            1997
                                                              ------------     -----------
                                                                               (UNAUDITED)
<S>                                                           <C>              <C>
ASSETS......................................................       $0              $0
                                                                   ==              ==
 
LIABILITIES.................................................       $0              $0
COMMITMENTS AND CONTINGENCIES
 
STOCKHOLDERS EQUITY:
  Common stock, .001 par value; 3,000 shares authorized and
     1 share issued and outstanding at December 31, 1996 and
     March 31, 1997.........................................        0               0
  Additional paid-in capital................................        0               0
                                                                   --              --
          Total liabilities and stockholders' equity........       $0              $0
                                                                   ==              ==
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                       F-9
<PAGE>   56
 
                               ORTHALLIANCE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                        STATEMENT OF STOCKHOLDERS EQUITY
   
       FOR THE PERIOD FROM INCEPTION (OCTOBER 21, 1996) TO MARCH 31, 1997
    
 
   
<TABLE>
<CAPTION>
                                                                       ADDITIONAL       TOTAL
                                                              COMMON    PAID-IN     STOCKHOLDERS'
                                                              STOCK     CAPITAL        EQUITY
                                                              ------   ----------   -------------
<S>                                                           <C>      <C>          <C>
INITIAL INVESTED CAPITAL (OCTOBER 21, 1996).................    0          $0            $0
  Subscription receivable...................................    0           0             0
                                                                --         --            --
STOCKHOLDERS EQUITY AT DECEMBER 31, 1996 and March 31, 1997
  (unaudited)...............................................    0          $0            $0
                                                                ==         ==            ==
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-10
<PAGE>   57
 
                               ORTHALLIANCE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                         NOTES TO FINANCIAL STATEMENTS
                               DECEMBER 31, 1996
   
(INFORMATION AS OF MARCH 31, 1997 AND FOR THE THREE MONTHS ENDED MARCH 31, 1997
                                 IS UNAUDITED)
    
 
1.  BUSINESS AND ORGANIZATION
 
   
     OrthAlliance, Inc. (the "Company") (formerly known as Premier Orthodontic
Holdings, Inc.) was formed to create a leading provider of practice management
services to orthodontic practices in the United States. As a result of a planned
merger of US Orthodontic Care, Inc. ("USOC") and Premier Orthodontic Group, Inc.
("Premier") with and into the Company, the Company will succeed to the rights of
USOC and Premier in connection with management or consulting services agreements
and with respect to the purchase and sale agreements or agreements and plans of
reorganization that USOC and Premier has with certain orthodontic practices. As
a result, the Company has entered into definitive agreements to acquire,
simultaneous with an initial public offering (the "Offering"), the assets and
certain liabilities of the founding orthodontic practices. The Company will
affiliate with orthodontic practices pursuant to long-term management services
or consulting agreements and will generate revenue by providing management,
marketing, and development services to these practices. The Company has had no
operations to date, and the financial statements have been prepared on the basis
that the proposed transaction will occur, although no assurance can be made that
the proposed transaction will be completed or that the Company will be
successful in completing planned future acquisitions. The Company intends to
expand through the acquisition of management rights to practices throughout the
United States. In order to expand, the Company will need further acquisition
financing in the form of debt or equity financing. There can be no assurance
that such financing will be available.
    
 
     Pursuant to the merger agreement between USOC, Premier, and the Company,
respectively, all of the outstanding stock of USOC and Premier will be converted
to common stock of the Company.
 
   
     As of December 31, 1996, the Company will receive $.01 per share for the
one share of stock issued in 1996. This amount has been recorded as a
subscription receivable in the accompanying statement of stockholders equity.
    
 
2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
   
INTERIM UNAUDITED FINANCIAL INFORMATION
    
 
   
     The financial statements as of and for the three months ended March 31,
1997 are unaudited; however, in the opinion of management, all adjustments
(consisting solely of normal recurring adjustments) necessary for a fair
presentation of the unaudited financial statements for this interim period have
been included. The results of interim periods are not necessarily indicative of
the results to be obtained for a full year.
    
 
ACCOUNTING PRONOUNCEMENTS
 
     The Company anticipates that the Emerging Issues Task Force of the
Financial Accounting Standards Board will be evaluating certain matters relating
to the physician practice management industry. The Company expects this
evaluation will include a review of accounting for business combinations. The
Company is unable to predict the impact, if any, that this review may have on
the Company's acquisition strategy, allocation of purchase price related to
acquisitions, and amortization life assigned to intangible assets.
 
3.  COMMITMENTS AND CONTINGENCIES
 
     The Company will be subject to certain government regulation at the federal
and state levels. In compliance with certain regulatory requirements, the
Company will not control the practice of orthodontics. There can be no assurance
that the legality of any long-term management services agreements that will be
entered into will not be successfully challenged. There also can be no assurance
that the laws and regulations of states in which the
 
                                      F-11
<PAGE>   58
 
                               ORTHALLIANCE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
Company will maintain operations will not change or be interpreted in the future
to restrict or further restrict the Company's relationships with orthodontists.
 
   
     The Company's orthodontists may be subject to legal liability suits while
under management or consulting services agreements with the Company. The Company
will not control the orthodontists; however, the Company intends to acquire
liability insurance for itself.
    
 
                                      F-12
<PAGE>   59
 
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To US Orthodontic Care, Inc.:
 
     We have audited the accompanying balance sheet of US ORTHODONTIC CARE, INC.
(a development-stage enterprise and a Georgia corporation) as of December 31,
1996 and the related statements of operations, shareholders' deficit, and cash
flows for the period from inception (February 7, 1996) to December 31, 1996.
These financial statements are the responsibility of the Company's management.
Our responsibility is to express an opinion on these financial statements based
on our audit.
 
     We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of US Orthodontic Care, Inc. as
of December 31, 1996 and the results of its operations and its cash flows for
the period from inception (February 7, 1996) to December 31, 1996 in conformity
with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Atlanta, Georgia
April 4, 1997
 
                                      F-13
<PAGE>   60
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                                 BALANCE SHEET
 
   
<TABLE>
<CAPTION>
                                                              DECEMBER 31,    MARCH 31,
                                                                  1996          1997
                                                              ------------   -----------
                                                                             (UNAUDITED)
<S>                                                           <C>            <C>
                                  ASSETS
CURRENT ASSETS:
  Cash......................................................  $    59,940    $   315,163
  Other current assets......................................        2,250          2,250
                                                              -----------    -----------
          Total current assets..............................       62,190        317,413
                                                              -----------    -----------
PROPERTY AND EQUIPMENT, at cost.............................       29,441         34,281
  Less accumulated depreciation.............................       (2,786)        (4,300)
                                                              -----------    -----------
          Property and equipment, net.......................       26,655         29,981
                                                              -----------    -----------
          Total assets......................................  $    88,845    $   347,394
                                                              ===========    ===========
 
              LIABILITIES AND SHAREHOLDERS' (DEFICIT) EQUITY
CURRENT LIABILITIES:
  Accounts payable..........................................  $   847,203    $   303,312
  Accrued salaries..........................................      100,000              0
  Due to related party......................................      173,754              0
                                                              -----------    -----------
          Total current liabilities.........................    1,120,957        303,312
                                                              -----------    -----------
COMMITMENTS AND CONTINGENCIES
SHAREHOLDERS' (DEFICIT) EQUITY:
  Common stock; no par value; 10,000,000 shares authorized,
     2,195,214 and 2,471,714 shares issued and outstanding
     at December 31, 1996 and March 31, 1997,
     respectively...........................................            0              0
  Additional paid-in capital................................    1,760,000      3,122,250
  Warrants..................................................      339,750        589,750
  Deficit accumulated during the development stage..........   (3,131,862)    (3,667,918)
                                                              -----------    -----------
          Total shareholders' (deficit) equity..............   (1,032,112)        44,082
                                                              -----------    -----------
          Total liabilities and shareholders' (deficit)
            equity..........................................  $    88,845    $   347,394
                                                              ===========    ===========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-14
<PAGE>   61
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
                            STATEMENTS OF OPERATIONS
    
 
   
<TABLE>
<CAPTION>
                                                                FOR THE
                                                              PERIOD FROM
                                                               INCEPTION     FOR THE THREE
                                                              (FEBRUARY 7,      MONTHS
                                                                1996) TO         ENDED
                                                              DECEMBER 31,     MARCH 31,
                                                                  1996           1997
                                                              ------------   -------------
                                                                              (UNAUDITED)
<S>                                                           <C>            <C>
REVENUES....................................................  $         0      $         0
EXPENSES:
  Salaries, wages, and benefits.............................   (1,878,205)        (395,465)
  General and administrative................................   (1,253,657)        (147,350)
                                                              -----------      -----------
          Total expenses....................................   (3,131,862)        (542,815)
                                                              -----------      -----------
OTHER INCOME (EXPENSE), NET.................................            0            6,759
                                                              -----------      -----------
NET LOSS....................................................  $(3,131,862)     $  (536,056)
                                                              ===========      ===========
NET LOSS PER COMMON SHARE...................................  $     (1.52)     $      (.22)
                                                              ===========      ===========
WEIGHTED AVERAGE NUMBER OF COMMON AND COMMON EQUIVALENT
  SHARES OUTSTANDING........................................    2,060,981        2,434,552
                                                              ===========      ===========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-15
<PAGE>   62
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
                  STATEMENTS OF SHAREHOLDERS' (DEFICIT) EQUITY
    
   
       FOR THE PERIOD FROM INCEPTION (FEBRUARY 7, 1996) TO MARCH 31, 1997
    
 
   
<TABLE>
<CAPTION>
                                                                    DEFICIT
                                                                  ACCUMULATED                  TOTAL
                                   COMMON STOCK      ADDITIONAL   DURING THE               SHAREHOLDERS'
                                ------------------    PAID IN     DEVELOPMENT                (DEFICIT)
                                 SHARES     AMOUNT    CAPITAL        STAGE      WARRANTS      EQUITY
                                ---------   ------   ----------   -----------   --------   -------------
<S>                             <C>         <C>      <C>          <C>           <C>        <C>
BALANCE AT FEBRUARY 7, 1996...          0     $0     $        0   $         0   $      0    $         0
  Common stock issued to
     Incorporator.............  1,576,714      0        400,000             0          0        400,000
  Common stock issued to
     directors and
     consultants..............    495,000      0        742,500             0          0        742,500
  Common stock issued to
     investors................    123,500      0        617,500             0          0        617,500
  Warrants granted to
     consultants..............          0      0              0             0    339,750        339,750
  Net loss....................          0      0              0    (3,131,862)         0     (3,131,862)
                                ---------     --     ----------   -----------   --------    -----------
BALANCE AT DECEMBER 31,
  1996........................  2,195,214      0      1,760,000    (3,131,862)   339,750     (1,032,112)
  Common Stock issued to
     investors................    276,500      0      1,362,250             0          0      1,362,250
  Warrants granted to
     officer..................          0      0              0             0    250,000        250,000
  Net loss....................          0      0              0      (536,056)         0       (536,056)
                                ---------     --     ----------   -----------   --------    -----------
BALANCE AT MARCH 31, 1997
  (unaudited).................  2,471,714     $0     $3,122,250   $(3,667,918)  $589,750    $    44,082
                                =========     ==     ==========   ===========   ========    ===========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-16
<PAGE>   63
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
                            STATEMENTS OF CASH FLOWS
    
 
   
<TABLE>
<CAPTION>
                                                                   FOR THE
                                                                 PERIOD FROM
                                                                  INCEPTION
                                                                 (FEBRUARY 7,      FOR THE THREE
                                                                   1996) TO         MONTHS ENDED
                                                                 DECEMBER 31,        MARCH 31,
                                                                     1996               1997
                                                              ------------------   --------------
                                                                                    (UNAUDITED)
<S>                                                           <C>                  <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss..................................................     $(3,131,862)       $  (536,056)
                                                                 -----------        -----------
  Adjustments to reconcile net loss to net cash used in
     operating activities:
     Depreciation...........................................           2,786              1,514
     Compensation expense related to stock grants and
       warrants.............................................       1,080,000            250,000
     Changes in assets and liabilities:
       Other assets.........................................          (2,250)                 0
       Accounts payable.....................................         847,203           (543,891)
       Accrued salaries.....................................         100,000           (100,000)
       Due to Incorporator..................................         173,754           (173,754)
                                                                 -----------        -----------
          Total adjustments.................................       2,201,493           (566,131)
                                                                 -----------        -----------
          Net cash used in operating activities.............        (930,369)        (1,102,187)
                                                                 -----------        -----------
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchase of property and equipment........................         (29,441)            (4,840)
                                                                 -----------        -----------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Common stock issued to Incorporator.......................         400,000                  0
  Common stock issued to investors..........................         617,500          1,362,250
  Warrants granted to consultants...........................           2,250                  0
                                                                 -----------        -----------
          Net cash provided by financing activities.........       1,019,750          1,362,250
                                                                 -----------        -----------
NET CHANGE IN CASH..........................................          59,940            255,223
CASH, beginning of period...................................               0             59,940
                                                                 -----------        -----------
CASH, end of period.........................................     $    59,940        $   315,163
                                                                 ===========        ===========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-17
<PAGE>   64
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                         NOTES TO FINANCIAL STATEMENTS
                               DECEMBER 31, 1996
   
        (INFORMATION AS OF MARCH 31, 1997 AND FOR THE THREE MONTHS ENDED
    
   
                 MARCH 31, 1997 IS UNAUDITED UNLESS INDICATED)
    
 
1.  BUSINESS AND ORGANIZATION
 
   
     US Orthodontic Care, Inc. ("USOC" or the "Company") was incorporated as a
Georgia corporation on February 7, 1996 to effect the combination of the
operations of orthodontic practice entities. USOC did not have significant
operations from February 7, 1996 to March 31, 1996. USOC plans to combine with
Premier Orthodontic Group, Inc. ("Premier") under a newly formed holding
company, OrthAlliance, Inc. ("OrthAlliance"). Although USOC has not conducted
any operations to date, other than the initial capitalization and expenses
incurred in connection with the combination of the operations of orthodontic
practice entities and a proposed initial public offering (the "Offering"), it
has entered into agreements to acquire, simultaneous with and as a condition to
the consummation of the Offering, certain assets and liabilities of established
orthodontic practices ("Founding Practices"). These agreements and the rights
thereto are being acquired by OrthAlliance pursuant to the merger of USOC and
Premier with and into OrthAlliance. The financial statements have been prepared
on the basis that the proposed transaction will occur, although no assurance can
be made that the proposed transaction will be completed or that OrthAlliance
will be successful in completing planned future acquisitions of orthodontic
practices.
    
 
2.  SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
  Deferred Issuance Costs
 
   
     The Company incurred costs associated with a proposed initial public
offering of $450,000 in 1996. As this offering did not occur, the Company
expensed those items.
    
 
  Property and Equipment
 
     Property and equipment are stated at cost, less accumulated deprecation.
Depreciation is provided using the straight-line method over the assets'
estimated useful lives of five to seven years.
 
   
     Property and equipment consisted of the following:
    
 
   
<TABLE>
<CAPTION>
                                                              DECEMBER 31,     MARCH 31,
                                                                  1996           1997
                                                              ------------     ---------
<S>                                                           <C>              <C>
Computer equipment..........................................    $15,932         $20,772
Furniture and fixtures......................................     13,509          13,509
                                                                -------         -------
                                                                 29,441          34,281
  Less accumulated depreciation.............................     (2,786)         (4,300)
                                                                -------         -------
                                                                $26,655         $29,981
                                                                =======         =======
</TABLE>
    
 
  Fair Value of Financial Instruments
 
     The carrying values of cash and accounts payable approximate their fair
values principally because of the short-term maturities of these instruments.
 
  Use of Estimates
 
     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
                                      F-18
<PAGE>   65
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
  Revenue Recognition
 
   
     Revenue from managing the practices on a national basis will be recognized
on a monthly basis as the services are provided. Each practice will pay a
management fee as specified in the management or consulting services agreement
contract based on a percentage of annual patient service revenues on an accrual
basis.
    
 
  Per Share Data
 
   
     Net loss per share is calculated using the weighted average number of
common shares outstanding during the period. The net loss per share for the
period from inception (February 7, 1996) to December 31, 1996 and for the three
months ended March 31, 1997 was based on the weighted average number of common
shares outstanding. Pursuant to Securities and Exchange Commission Staff
Accounting Bulletins ("SAB"), common stock and common stock equivalents issued
at prices below the expected public offering price during the twelve month
period prior to the filing of the registration statement must be included in the
calculation as if they were outstanding for all periods presented prior to the
Offering, regardless of whether they are antidilutive. Therefore, the effect of
the shares and options issued twelve months prior to the Offering is included in
the weighted average number of common and common equivalent shares outstanding.
    
 
   
  Interim Unaudited Financial Information
    
 
   
     The financial statements as of and for the three months ended March 31,
1997 are unaudited; however, in the opinion of management, all adjustments
(consisting solely of normal recurring adjustments) necessary for a fair
presentation of the unaudited financial statements for this interim period has
been included. The results of interim periods are not necessarily indicative of
the results to be obtained for a full year.
    
 
  Accounting Pronouncements
 
     The Company anticipates that the Emerging Issues Task Force of the
Financial Accounting Standards Board will be evaluating certain matters relating
to the physician practice management industry. The Company expects this
evaluation will include a review of accounting for business combinations. The
Company is unable to predict the impact, if any, that this review may have on
the Company's acquisition strategy, allocation of purchase price related to
acquisitions, and amortization life assigned to intangible assets.
 
   
     On January 1, 1996, the Company adopted Statement of Financial Accounting
Standards ("SFAS") No. 121, "Accounting for the Impairment of Long-Lived Assets
and for Long-Lived Assets to Be Disposed Of." At December 31, 1996 and March 31,
1997, the Company had no significant long-lived assets. Under SFAS No. 121, the
Company will analyze intangibles for impairment whenever events or changes in
circumstances indicate that the carrying amount of the asset may not be
recoverable. If this review indicates that the carrying amount of the asset may
not be recoverable, as determined based on the undiscounted cash flows of the
operations acquired over the remaining amortization period, the carrying value
of the asset will be reduced to fair value. Among the factors that the Company
will continually evaluate are unfavorable changes in each orthodontic group's
relative market share and local market competitive environment, current period
and forecasted operating and cash flow levels of the orthodontic group and the
impact on the management fee earned by the Company, and legal factors governing
the practice of orthodontics.
    
 
   
3.  SHAREHOLDERS' (DEFICIT) EQUITY
    
 
     In April 1996, 1,576,714 shares of common stock were issued at a total
price of $400,000 to Dr. Robert N. Pickron (the "Incorporator"). Management
believes that the $.2537 per share received in consideration for those shares
represented the fair value of the shares at that date. On June 10, 1996, an
additional 495,000 shares were issued to certain consultants of the Company in
consideration for services provided to that date. Management
 
                                      F-19
<PAGE>   66
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
believes that the fair value of the shares issued at that date, as calculated
for compensation expense, was $1.50 per share. The fair value of these shares
was recorded as compensation expense of $742,500 and is included in salaries,
wages and benefits in the accompanying statement of operations.
 
   
     On October 23, 1996, USOC offered 400,000 shares of common stock to
affiliates of anticipated Founding Practices and other accredited investors
through a private placement memorandum ("PPM") at a price of $5 per share. As of
December 31, 1996, 123,500 shares were issued under the PPM for net proceeds of
$617,500.
    
 
   
     On February 4, 1997, the Company offered the shares not sold in the PPM
discussed above (276,500 shares) at $5 per share through a second PPM to
affiliates of anticipated Founding Practices and other accredited investors.
    
 
4.  INCOME TAXES
 
   
     As reflected in the accompanying statements of operations, the Company
incurred a loss from operations during the period from inception (February 7,
1996) to December 31, 1996 and for the three months ended March 31, 1997. Due to
the limited operations of the Company since its inception and the pending
Offering, a valuation allowance has been recorded to fully reserve for the
deferred tax benefits generated from tax deferred issuance costs. There is no
significant difference in the tax and book bases of the Company's assets or
liabilities that would give rise to deferred tax balances.
    
 
5.  RELATED-PARTY TRANSACTIONS
 
   
     The Incorporator of USOC funded expenses of USOC from the date of inception
through December 31, 1996, as only a portion of the funds provided from the PPM
was available for use prior to year-end. Of the amount funded by the
Incorporator, $173,754 is included in a current liability on the accompanying
balance sheet as of December 31, 1996 and was reimbursed by USOC after December
31, 1996. The remaining amount funded by the Incorporator ($400,000) was used to
purchase common stock and is included in additional paid-in capital on the
accompanying balance sheet.
    
 
6.  WARRANTS
 
   
     At December 31, 1996, the Company has warrants outstanding to directors and
consultants of the Company to purchase 225,000 shares of common stock at the
initial public offering price. The warrants expire five years from the effective
date of the Offering. The fair market value of these warrants of $337,500 was
recorded as salaries, wages and benefits in the accompanying statement of
operations for the period from inception (February 7, 1996) to December 31,
1996.
    
 
   
     As of March 31, 1997, warrants for the purchase of 50,000 shares of common
stock were granted to an officer with an exercise price per share equal to $.01.
The Company recorded compensation expense of $250,000 on the warrants in the
first quarter of 1997.
    
 
   
     OrthAlliance has agreed to issue warrants for the purchase of 90,000 shares
of common stock to certain Founding Practices. The exercise price per share will
be equal to the initial public offering price.
    
 
   
7.  COMMITMENTS AND CONTINGENCIES
    
 
   
     OrthAlliance will establish a stock option plan for employees prior to the
Offering. All options issued under this plan will be accounted for in accordance
with Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to
Employees," and any required compensation expense on these options will be
recorded at the date of grant. The Company will provide the pro forma disclosure
of net income and earnings per share in the
    
 
                                      F-20
<PAGE>   67
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
   
notes to the financial statements as if the fair value-based method of
accounting had been applied to awards as required by SFAS No. 123, "Accounting
for Stock-Based Compensation."
    
 
     The Company has granted warrants to purchase shares of common stock to
certain interested parties as part of the Offering. Additionally, the Company
has agreed to pay approximately $400,000 to certain consultants upon successful
completion of the Offering.
 
   
     OrthAlliance will be subject to certain government regulation at the
federal and state levels. In compliance with certain regulatory requirements,
OrthAlliance will not control the practice of orthodontists. Long-term
management and consulting services agreements may be challenged by certain
states as to their legality. There also can be no assurance that the laws and
regulations of states in which OrthAlliance will maintain operations will not
change or be interpreted in the future to restrict OrthAlliance's relationships
with orthodontists.
    
 
8.  PLANNED ACQUISITIONS OF FOUNDING PRACTICES
 
   
     OrthAlliance plans to complete the transfer of certain assets of the
Founding Practices (the "Transfers") concurrently with the Offering. The
Founding Practices will receive shares of common stock and cash as consideration
in the Transfers. Additionally the selling orthodontists' professional
corporations, professional associations, or other entities (collectively, the
"PCs") will enter into 20-year management or consulting services agreements with
OrthAlliance. The orthodontists will be employed by the PCs; therefore,
OrthAlliance will not employ orthodontists or control the practice of
orthodontics. OrthAlliance will receive a management fee for the services
provided. This management fee is based on the profitability of the individual
practices and is based on a percentage of annual accrual patient service revenue
or a flat fee with annual incremental increases. Each of the Founding Practices
is considered a promoter as defined in rule 1-02 of Regulation S-X.
    
 
   
     As OrthAlliance will not be acquiring the future patient service revenues
earned by the individual orthodontic practices, the Transfers are not deemed to
be business combinations. In accordance with the SAB No. 48, "Transfers of
Nonmonetary Assets by Promoters or Shareholders," the acquired nonmonetary
assets and assumed liabilities will be accounted for on the historical cost
basis of the Founding Practices.
    
 
   
     The selling orthodontists will generally retain the liabilities of their
respective practices although certain liabilities will be assumed by
OrthAlliance. Certain capital lease obligations will be assumed by OrthAlliance.
    
 
   
     The management service revenues that will be earned by OrthAlliance,
subsequent to the Transfers and execution of the management agreements are based
on various arrangements. In general, the resulting fee will be based on the
accrual patient service revenue of the practice. OrthAlliance's standard form of
management agreement will be applied to all practices operating in locations
where it is not prohibited by law or governmental regulation. In those instances
where this contract may not be permitted, an alternative form of consulting and
business services agreement will be used.
    
 
   
     Patient service revenues are derived from orthodontic care provided to
patients under contract terms agreed to by the patient or other responsible
parties. The contracts vary by practice and by patient, and service generally
extends over an 18- to 24-month period. Revenue is recognized as the services
are performed, with approximately 20% being recognized at the time of initial
treatment. The balance of the contract revenue is realized evenly over the
remaining contract period. The 20% estimated cost at the initial treatment date
is based on the estimated costs incurred by the practice at that time as
compared to the total costs of providing the contracted services. Additionally,
the 20% estimated revenue at the initial treatment date is consistent with
industry standards and includes the estimated costs of diagnosis and treatment
plan development, initial treatment by orthodontic personnel, orthodontic
supplies, and associated administrative services. For the year ended December
31, 1996 and for the three months ended March 31, 1997, the Founding Practices
had audited accrual patient service revenue of approximately $42,400,000 and
$10,605,000, respectively.
    
 
                                      F-21
<PAGE>   68
 
                           US ORTHODONTIC CARE, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
     The difference in the timing of the recognition of patient service revenues
and cash collections results in (i) unbilled receivables in instances where
recognition of revenues precedes the patient's payment plan and (ii) patient
prepayments when payments are made on a more accelerated basis than revenues are
earned.
 
                                      F-22
<PAGE>   69
 
                    REPORT OF INDEPENDENT PUBLIC ACCOUNTANTS
 
To Premier Orthodontic Group, Inc.:
 
     We have audited the accompanying balance sheet of PREMIER ORTHODONTIC
GROUP, INC. (a development-stage enterprise and a Delaware corporation) as of
December 31, 1996 and the related statement of operations, owners' deficit, and
cash flows for the period from inception (November 26, 1996) to December 31,
1996. These financial statements are the responsibility of the Company's
management. Our responsibility is to express an opinion on these financial
statements based on our audit.
 
     We conducted our audit in accordance with generally accepted auditing
standards. Those standards require that we plan and perform the audit to obtain
reasonable assurance about whether the financial statements are free of material
misstatement. An audit includes examining, on a test basis, evidence supporting
the amounts and disclosures in the financial statements. An audit also includes
assessing the accounting principles used and significant estimates made by
management, as well as evaluating the overall financial statement presentation.
We believe that our audit provides a reasonable basis for our opinion.
 
     In our opinion, the financial statements referred to above present fairly,
in all material respects, the financial position of Premier Orthodontic Group,
Inc. as of December 31, 1996 and the results of its operations and its cash
flows for the period from inception (November 26, 1996) to December 31, 1996 in
conformity with generally accepted accounting principles.
 
                                          ARTHUR ANDERSEN LLP
 
Atlanta, Georgia
April 11, 1997
 
                                      F-23
<PAGE>   70
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                                 BALANCE SHEET
 
   
<TABLE>
<CAPTION>
                                                              DECEMBER 31,      MARCH 31,
                                                                  1996            1997
                                                              ------------     -----------
                                                                               (UNAUDITED)
<S>                                                           <C>              <C>
                                  ASSETS
CURRENT ASSETS:
  Cash......................................................   $       0        $ 895,889
                                                               ---------        ---------
PROPERTY AND EQUIPMENT, at cost.............................       4,971           24,953
  Less accumulated depreciation.............................        (166)            (415)
                                                               ---------        ---------
     Property and equipment, net............................       4,805           24,538
OTHER ASSETS................................................           0            4,620
                                                               ---------        ---------
          Total assets......................................   $   4,805        $ 925,047
                                                               =========        =========
              LIABILITIES AND OWNERS'/STOCKHOLDERS' DEFICIT
CURRENT LIABILITIES:
  Accounts payable and accrued liabilities..................   $  20,241        $ 137,463
  Accrued consulting fees...................................     239,735          380,985
                                                               ---------        ---------
          Total current liabilities.........................     259,976          518,448
NOTE PAYABLE................................................           0        1,000,000
COMMITMENTS AND CONTINGENCIES
OWNERS'/STOCKHOLDERS' DEFICIT, $.001 par value; 3,000 shares
  authorized; 100 shares issued and outstanding at March 31,
  1997......................................................    (255,171)        (593,401)
                                                               ---------        ---------
          Total liabilities and owners'/stockholders'
            deficit.........................................   $   4,805        $ 925,047
                                                               =========        =========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-24
<PAGE>   71
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
                            STATEMENTS OF OPERATIONS
    
 
   
<TABLE>
<CAPTION>
                                                                 FOR THE
                                                               PERIOD FROM
                                                                INCEPTION     FOR THE THREE
                                                              (NOVEMBER 26,      MONTHS
                                                                1996) TO          ENDED
                                                              DECEMBER 31,      MARCH 31,
                                                                  1996            1997
                                                              -------------   -------------
                                                                               (UNAUDITED)
<S>                                                           <C>             <C>
REVENUES....................................................   $         0      $         0
                                                               -----------      -----------
EXPENSES:
  Consulting fees...........................................       239,735          211,755
  General and administrative................................        15,436          129,945
                                                               -----------      -----------
          Total expenses....................................       255,171          341,700
                                                               -----------      -----------
OTHER INCOME (EXPENSE), NET.................................             0            3,470
                                                               -----------      -----------
NET LOSS....................................................   $   255,171      $   338,230
                                                               ===========      ===========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-25
<PAGE>   72
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
             STATEMENTS OF CHANGES IN OWNERS'/STOCKHOLDERS' DEFICIT
    
   
      FOR THE PERIOD FROM INCEPTION (NOVEMBER 26, 1996) TO MARCH 31, 1997
    
 
   
<TABLE>
<S>                                                           <C>
INITIAL INVESTED CAPITAL (NOVEMBER 26, 1996)................  $       0
  Net loss..................................................   (255,171)
                                                              ---------
OWNERS' DEFICIT AT DECEMBER 31, 1996........................   (255,171)
                                                              ---------
  Net loss..................................................  $(338,230)
                                                              ---------
OWNERS'/STOCKHOLDERS' DEFICIT AT MARCH 31, 1997
  (unaudited)...............................................  $(593,401)
                                                              =========
</TABLE>
    
 
         The accompanying notes are an integral part of this statement.
 
                                      F-26
<PAGE>   73
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
   
                            STATEMENTS OF CASH FLOWS
    
 
   
<TABLE>
<CAPTION>
                                                                 FOR THE
                                                               PERIOD FROM
                                                                INCEPTION
                                                              (NOVEMBER 26,   FOR THE THREE
                                                                1996) TO      MONTHS ENDED
                                                              DECEMBER 31,      MARCH 31,
                                                                  1996            1997
                                                              -------------   -------------
                                                                               (UNAUDITED)
<S>                                                           <C>             <C>
CASH FLOWS FROM OPERATING ACTIVITIES:
  Net loss..................................................    $(255,171)      $(338,230)
                                                                ---------       ---------
  Adjustments to reconcile net loss to net cash provided by
     operating activities:
     Depreciation...........................................          166             249
     Changes in assets and liabilities:
       Other assets.........................................            0          (4,620)
       Accounts payable and accrued liabilities.............       20,241         117,222
       Accrued consulting fees..............................      239,735         141,250
                                                                ---------       ---------
          Total adjustments.................................      260,142         254,101
                                                                ---------       ---------
          Net cash provided by (used) in operating
            activities......................................        4,971         (84,129)
CASH FLOWS FROM INVESTING ACTIVITIES:
  Purchase of property and equipment........................       (4,971)        (19,982)
                                                                ---------       ---------
CASH FLOWS FROM FINANCING ACTIVITIES:
  Proceeds from note payable................................            0       1,000,000
                                                                ---------       ---------
NET CHANGE IN CASH..........................................            0         895,889
CASH, beginning of period...................................            0               0
                                                                ---------       ---------
CASH, end of period.........................................    $       0       $ 895,889
                                                                =========       =========
</TABLE>
    
 
   
        The accompanying notes are an integral part of these statements.
    
 
                                      F-27
<PAGE>   74
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                         NOTES TO FINANCIAL STATEMENTS
                               DECEMBER 31, 1996
   
        (INFORMATION AS OF MARCH 31, 1997 AND FOR THE THREE MONTHS ENDED
    
   
                 MARCH 31, 1997 IS UNAUDITED UNLESS INDICATED)
    
 
1. BUSINESS AND ORGANIZATION
 
     Premier Orthodontic Group, Inc., a Delaware corporation ("Premier" or the
"Company"), was incorporated on January 30, 1997. Premier Orthodontic Ventures,
LLC ("Premier LLC"), formed on November 26, 1996, incurred certain expenses on
behalf of the Company from November 26, 1996 to January 30, 1997. Upon the
incorporation of the Company on January 30, 1997, the Company reimbursed the
expenses incurred by Premier LLC on behalf of the Company from the proceeds of
the loan discussed in Note 7. The accompanying financial statements have been
prepared based on the expenses incurred by Premier LLC on behalf of the Company
from November 26, 1996 to December 31, 1996. The Company was incorporated to
effect the combination of the operations of orthodontic entities. Premier plans
to combine with US Orthodontic Care, Inc. under a newly formed holding company,
OrthAlliance, Inc. ("OrthAlliance"). Although Premier has not conducted any
operations to date, other than the initial capitalization and expenses incurred
in connection with the combination of the operations of orthodontic entities and
a proposed public offering (the "Offering"), it has entered into agreements to
acquire, simultaneous with and as a condition to the consummation of the
Offering, certain assets and liabilities of established orthodontic practices
("Founding Practices"). These agreements and the rights thereto are being
acquired by OrthAlliance pursuant to the merger of USOC and Premier with and
into OrthAlliance. The financial statements have been prepared on the basis that
the proposed transaction will occur, although no assurance can be made that the
proposed transaction will be completed or that OrthAlliance will be successful
in completing planned future acquisitions of orthodontic practices.
 
2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
 
   
  Property and Equipment
    
 
     Property and equipment are stated at cost, less accumulated deprecation.
Depreciation is provided using the straight-line method over the assets'
estimated useful lives of five to seven years.
 
     The detail of property and equipment is as follows:
 
   
<TABLE>
<CAPTION>
                                                              DECEMBER 31,     MARCH 31,
                                                                  1996           1997
                                                              ------------     ---------
<S>                                                           <C>              <C>
Computer equipment..........................................     $4,971         $18,625
Furniture and Equipment.....................................          0           6,328
  Less accumulated depreciation.............................       (166)           (415)
                                                                 ------         -------
                                                                 $4,805         $24,538
                                                                 ======         =======
</TABLE>
    
 
  Fair Value of Financial Instruments
 
     The carrying values of financial instruments approximate their fair values
principally because of the short-term maturities of these instruments.
 
  Use of Estimates
 
     The preparation of financial statements in conformity with generally
accepted accounting principles requires management to make estimates and
assumptions that affect the reported amounts of assets and liabilities and
disclosure of contingent assets and liabilities at the date of the financial
statements and the reported amounts of revenues and expenses during the
reporting period. Actual results could differ from those estimates.
 
                                      F-28
<PAGE>   75
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
  Revenue Recognition
 
   
     Revenue from managing the practices on a national basis will be recognized
on a monthly basis as the services are provided. Each practice will pay a
management fee as specified in the management or consulting services agreement
based generally on a percentage of annual patient service revenues on an accrual
basis.
    
 
  Per Share Data
 
   
     Net loss per share is calculated using the weighted average number of
common and common equivalent shares outstanding during the period. The net loss
per share for the period from inception (November 26, 1996) to December 31, 1996
and for the three months ended March 31, 1997 was based on the weighted average
number of common shares outstanding. Pursuant to Securities and Exchange
Commission Staff Accounting Bulletins ("SAB"), common stock and common stock
equivalents issued at prices below the expected public offering price during the
twelve month period prior to the filing of the registration statement must be
included in the calculation as if they were outstanding for all periods
presented prior to the Offering, regardless of whether they are antidilutive.
Therefore, the effect of the shares and options issued twelve months prior to
the Offering is included in the weighted average number of common and common
equivalent shares outstanding.
    
 
   
INTERIM UNAUDITED FINANCIAL INFORMATION
    
 
   
     The financial statements as of and for the three months ended March 31,
1997 are unaudited; however, in the opinion of management, all adjustments
(consisting solely of normal recurring adjustments) necessary for a fair
presentation of the unaudited financial statements for this interim period has
been included. The results of interim periods are not necessarily indicative of
the results to be obtained for a full year.
    
 
  Accounting Pronouncements
 
     The Company anticipates that the Emerging Issues Task Force of the
Financial Accounting Standards Board will be evaluating certain matters relating
to the physician practice management industry. The Company expects this
evaluation will include a review of accounting for business combinations. The
Company is unable to predict the impact, if any, that this review may have on
the Company's acquisition strategy, allocation of purchase price related to
acquisitions, and amortization life assigned to intangible assets.
 
   
     On November 26, 1996, the Company adopted Statement of Financial Accounting
Standards ("SFAS") No. 121, "Accounting for the Impairment of Long-Lived Assets
and for Long-Lived Assets to Be Disposed Of." At December 31, 1996 and March 31,
1997, the Company had no significant long-lived assets. Under SFAS No. 121, the
Company will analyze intangibles for impairment whenever events or changes in
circumstances indicate that the carrying amount of the asset may not be
recoverable. If this review indicates that the carrying amount of the asset may
not be recoverable, as determined based on the undiscounted cash flows of the
operations acquired over the remaining amortization period, the carrying value
of the asset will be reduced to fair value. Among the factors that the Company
will continually evaluate are unfavorable changes in each orthodontic group's
relative market share and local market competitive environment, current period
and forecasted operating and cash flow levels of the orthodontic group and the
impact on the management fee earned by the Company, and legal factors governing
the practice of orthodontics.
    
 
3.  INCOME TAXES
 
   
     As reflected in the accompanying statement of operations, the Company
incurred a loss from operations during the period from inception (November 26,
1996) to December 31, 1996 and for the three months ended March 31, 1997. Due to
the limited operations of the Company since its inception and the pending
Offering, a valuation allowance has been recorded to fully reserve for the
deferred tax benefits generated from tax deferred
    
 
                                      F-29
<PAGE>   76
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
issuance costs. There is no significant difference in the tax and book bases of
the Company's assets or liabilities that would give rise to deferred tax
balances.
 
4.  RELATED-PARTY TRANSACTIONS
 
   
     The incorporators of Premier funded expenses of Premier from the date of
inception through the end of the year. Of the amount funded by the founders,
$17,630 is reflected as a current liability on the accompanying balance sheet as
of December 31, 1996 and was reimbursed by Premier after year-end.
    
 
5.  COMMITMENTS AND CONTINGENCIES
 
   
     The Company has agreed to pay certain consultants approximately $500,000
upon successful completion of the Offering.
    
 
     OrthAlliance will be subject to certain government regulation at the
federal and state levels. In compliance with certain regulatory requirements,
OrthAlliance will not control the practice of orthodontists. Long-term service
and consulting services agreement may be challenged by certain states as to
their legality. There also can be no assurance that the laws and regulations of
states in which OrthAlliance will maintain operations will not change or be
interpreted in the future to restrict OrthAlliance's relationships with
orthodontists.
 
6.  PLANNED TRANSFERS OF ASSETS OF FOUNDING PRACTICES
 
   
     OrthAlliance plans to complete the transfer of certain assets of the
Founding Practices (the "Transfer") concurrently with the Offering. The Founding
Practices will receive shares of common stock and cash as consideration in the
Transfers. Additionally, the selling orthodontists' professional corporations,
professional associations, or other entities (collectively, the "PCs") will
enter into 20-year management or consulting services agreements with
OrthAlliance. The orthodontists will be employed by the PCs; therefore,
OrthAlliance will not employ orthodontists or control the practice of
orthodontics. OrthAlliance will receive a management fee for the services
provided. This management fee is based on the profitability of the individual
practices and is based on a percentage of annual accrual patient service revenue
or a flat fee with annual incremental increases. Each of the founding practices
is considered a promoter as defined in rule 1-02 of Regulation S-X.
    
 
     As OrthAlliance will not be acquiring the future patient service revenues
earned by the individual orthodontic practices, the Transfers are not deemed to
be business combinations. In accordance with the SAB No. 48, "Transfers of
Nonmonetary Assets by Promoters of Shareholders," the acquired nonmonetary
assets and assumed liabilities will be accounted for on the historical cost
basis of the Founding Practices.
 
   
     The selling orthodontists will generally retain the liabilities of their
respective practices although certain liabilities will be assumed by
OrthAlliance. Certain capital lease obligations will be assumed by OrthAlliance.
    
 
   
     The management service revenues that will be earned by OrthAlliance,
subsequent to the Transfers and execution of the management agreements are based
on various arrangements. In general, the resulting fee will be based on the
accrual patient service revenue of the practice. OrthAlliance's standard form of
management agreement will be applied to all practices operating in locations
where it is not prohibited by law or governmental regulation. In those instances
where this contract may not be permitted, an alternative form of consulting and
business services agreement will be used.
    
 
     Patient service revenues are derived from orthodontic care provided to
patients under contract terms agreed to by the patient or other responsible
parties. The contracts vary by practice and by patient, and service generally
extends over an 18- to 24-month period. Revenue is recognized as the services
are performed, with approximately 20% being recognized at the time of initial
treatment. The balance of the contract revenue is realized evenly over the
remaining contract period. The 20% estimated cost at the initial treatment date
is based on the estimated costs
 
                                      F-30
<PAGE>   77
 
                        PREMIER ORTHODONTIC GROUP, INC.
                        (A DEVELOPMENT-STAGE ENTERPRISE)
 
                  NOTES TO FINANCIAL STATEMENTS -- (CONTINUED)
 
   
incurred by the practice at that time as compared to the total costs of
providing the contracted services. Additionally, the 20% estimated revenue at
the initial treatment date is consistent with industry standards and includes
the estimated costs of diagnosis and treatment plan development, initial
treatment by orthodontic personnel, orthodontic supplies, and associated
administrative services. For the year ended December 31, 1996 and for the three
months ended March 31, 1997, the Founding Practices had audited accrual patient
service revenue of approximately $18,927,000 and $4,998,000, respectively.
    
 
     The difference in the timing of the recognition of patient service revenues
and cash collections results in (i) unbilled receivables in instances where
recognition of revenues precedes the patient's payment plan and (ii) patient
prepayments when payments are made on a more accelerated basis than revenues are
earned.
 
7.  SUBSEQUENT EVENTS
 
   
     In January 1997, Premier LLC loaned the Company $1,000,000. The Company
will pay the total amount of the loan to Premier LLC of $1,000,000 in cash, plus
accrued interest at prime plus 1% from the proceeds of the Offering.
    
 
                                      F-31
<PAGE>   78
 
======================================================
 
  NO DEALER, SALESPERSON OR OTHER PERSON HAS BEEN AUTHORIZED TO GIVE ANY
INFORMATION OR TO MAKE ANY REPRESENTATION IN CONNECTION WITH THE OFFERING OTHER
THAN THOSE CONTAINED IN THIS PROSPECTUS, AND, IF GIVEN OR MADE, SUCH INFORMATION
OR REPRESENTATION MUST NOT BE RELIED UPON AS HAVING BEEN AUTHORIZED BY THE
COMPANY OR ANY UNDERWRITER. THIS PROSPECTUS DOES NOT CONSTITUTE AN OFFER TO SELL
OR A SOLICITATION OF AN OFFER TO BUY THE SHARES OF COMMON STOCK OFFERED HEREBY
BY ANYONE IN ANY JURISDICTION IN WHICH SUCH OFFER OR SOLICITATION IS NOT
AUTHORIZED, OR IN WHICH THE PERSON MAKING SUCH OFFER OR SOLICITATION IS NOT
QUALIFIED TO DO SO, OR TO ANY PERSON TO WHOM IT IS UNLAWFUL TO MAKE SUCH OFFER
OR SOLICITATION. NEITHER THE DELIVERY OF THIS PROSPECTUS NOR ANY SALE MADE
HEREUNDER SHALL, UNDER ANY CIRCUMSTANCES, CREATE ANY IMPLICATION THAT THERE HAS
BEEN NO CHANGE IN THE AFFAIRS OF THE COMPANY SINCE THE DATE HEREOF OR THAT THE
INFORMATION CONTAINED HEREIN IS CORRECT AS OF ANY TIME SUBSEQUENT TO THE DATE
HEREOF.
 
                             ---------------------
 
                               TABLE OF CONTENTS
 
   
<TABLE>
<CAPTION>
                                        PAGE
                                        ----
<S>                                     <C>
Prospectus Summary....................     3
Risk Factors..........................     8
The Company...........................    14
Use of Proceeds.......................    14
Dividend Policy.......................    15
Dilution..............................    15
Capitalization........................    16
Selected Financial Data...............    17
Management's Discussion and Analysis
  of Financial Condition and Results
  of Operations.......................    18
Business..............................    21
Management............................    30
Certain Transactions..................    34
Principal Stockholders................    36
Description of Capital Stock..........    37
Shares Eligible for Future Sale.......    40
Underwriting..........................    42
Legal Matters.........................    43
Experts...............................    44
Additional Information................    44
Index to Financial Statements.........   F-1
</TABLE>
    
 
  UNTIL           , 1997 (FOR 25 DAYS AFTER THE DATE OF THIS PROSPECTUS), ALL
DEALERS EFFECTING TRANSACTIONS IN THE COMMON STOCK, WHETHER OR NOT PARTICIPATING
IN THIS DISTRIBUTION, MAY BE REQUIRED TO DELIVER A PROSPECTUS. THIS DELIVERY
REQUIREMENT IS IN ADDITION TO THE OBLIGATION OF DEALERS TO DELIVER A PROSPECTUS
WHEN ACTING AS UNDERWRITERS AND WITH RESPECT TO THEIR UNSOLD ALLOTMENTS OR
SUBSCRIPTIONS.
 
======================================================
======================================================
                                     SHARES
                               [ORTHALLIANCE LOGO]
 
                                  COMMON STOCK
                              -------------------
                                   PROSPECTUS
                              -------------------
                               J.C.BRADFORD & CO.
                                           , 1997
 
======================================================
<PAGE>   79
 
                                    PART II
 
                     INFORMATION NOT REQUIRED IN PROSPECTUS
 
ITEM 13.  OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.
 
     The following table itemizes the expenses of this Offering to be incurred
by the Company in connection with this registration statement, other than
underwriting discounts and commissions. All the amounts shown are estimates
except the SEC registration fee, the NASD filing fee and the Nasdaq National
Market Application and Listing Fee.
 
<TABLE>
<S>                                                           <C>
SEC Registration Fee........................................  $
Nasdaq National Market Application and Listing Fee..........
NASD Filing Fee.............................................
Blue Sky Fees and Expenses..................................
Accounting Fees and Expenses................................
Legal Fees and Expenses.....................................
Printing and Engraving Costs................................
Transfer Agent Fees and Expenses............................
Miscellaneous...............................................
                                                              ----
          Total.............................................  $
                                                              ====
</TABLE>
 
ITEM 14.  INDEMNIFICATION OF DIRECTORS AND OFFICERS.
 
     Under Section 145 of the Delaware General Corporation Law (the "DGCL"), a
corporation may indemnify any of its directors and officers against expenses
(including attorneys' fees), judgments, fines and amounts paid in settlement
actually and reasonably incurred by such person in connection with a threatened,
pending or completed action, suit or proceeding brought against him by reason of
the fact that he is or was a director or officer (i) if any such person acted in
good faith and in a manner reasonably believed to be in or not opposed to the
best interests of the corporation and (ii) in connection with any criminal
action or proceeding if such person had no reasonable cause to believe such
conduct was unlawful. In actions brought by or in the right of the corporation,
however, Section 145 provides that no indemnification may be made in respect of
any claim, issue or matter as to which such person shall have been adjudged to
be liable for negligence or misconduct in the performance of such person's duty
to the corporation unless, and only to the extent that, the Court of Chancery of
the State of Delaware or the court in which such action or suit was brought
shall determine upon application that, despite the adjudication of liability but
in review of all the circumstances of the case, such person is fairly and
reasonably entitled to indemnity for such expenses which the Court of Chancery
or such other court shall deem proper.
 
     The Certificate provides that no director of the Company shall be liable
for breach of fiduciary duty as a director except for (i) any breach of the
director's duty of loyalty to the Company or its stockholders; (ii) acts or
omissions not in good faith or which involve intentional misconduct or a knowing
violation of the law; (iii) for willful or negligent violations of certain
provisions of the DGCL imposing certain requirements with respect to stock
repurchases, redemptions and dividends; or (iv) any transaction from which the
director derived an improper personal benefit. Pursuant to the Company's
Certificate and Bylaws, the Company is obligated to indemnify each of its
directors and officers to the fullest extent permitted by the DGCL. In addition,
the Bylaws obligate the Company to purchase and maintain insurance on behalf of
any director or officer of the Company against any liability asserted against
and incurred by such director or officer, whether or not the Company would have
the power to indemnify such officer or director against such liability under the
provisions of the DGCL.
 
     The Underwriting Agreement will provide for the indemnification by the
Underwriters of the Company, each of the Company's directors, each of the
Company's officers who signs this Registration Statement and each person who
controls the Company within the meaning of the Securities Act, solely with
respect to information provided by the Underwriters for inclusion in this
Registration Statement.
 
                                      II-1
<PAGE>   80
 
     The Company intends to obtain insurance which provides general coverage for
its directors and executive officers in amounts to be determined. In addition,
the Company intends to obtain insurance coverage for its directors and executive
officers in amounts to be determined with respect to the Offering.
 
ITEM 15.  RECENT SALES OF UNREGISTERED SECURITIES.
 
     The following information relates to securities of the Company issued or
sold within the past three years which were not registered under the Securities
Act:
 
          (i) In October, 1996, the Company issued one share of Common Stock to
     Sam Westover for $.01 per share;
 
          (ii) Effective prior to the completion of the Offering, Premier
     Orthodontic Group, Inc. ("Premier") and US Orthodontic Care, Inc. ("USOC")
     will merge with and into the Company. As a result of the merger, holders of
     Premier common stock will receive      shares of Common Stock of the
     Company and holders of USOC Common Stock will receive      shares of Common
     Stock of the Company;
 
          (iii) Simultaneously with the completion of this Offering, the Company
     will issue           shares of its Common Stock in connection with the
     acquisition of the practice management or consulting rights to and certain
     assets of the Founding Practices.
 
     Each of these transactions was completed without registration of the
relevant security under the Securities Act in reliance upon the exemptions
provided by Section 4(2) of the Securities Act and the rules and regulations
promulgated thereunder on the basis that such transactions did not involve a
public offering, the purchasers were sophisticated with access to the kind of
information registration would provide and that such purchasers acquired such
securities without a view toward the distribution thereof.
 
ITEM 16.  EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.
 
     (a) Exhibits
 
   
<TABLE>
<CAPTION>
EXHIBIT
NUMBER         DESCRIPTION
- -------        -----------
<C>       <C>  <S>
  1.1 *   --   Form of Underwriting Agreement
  2.1 *   --   Agreement and Plan of Merger between OrthAlliance, USOC and
               Premier dated                       , 1997.
  2.2 +   --   Form of Purchase and Sale Agreement between OrthAlliance and
               Founding Practices.
  2.3 +   --   Form of Agreement and Plan of Reorganization between
               OrthAlliance and Founding Practices.
  2.4 *   --   Form of Purchase and Sale of Stock Agreement between
               OrthAlliance and Founding Practices.
  3.1 *   --   Amended and Restated Certificate of Incorporation of the
               Company.
  3.2 *   --   Amended and Restated Bylaws of the Company.
  4.1 *   --   Form of certificate evidencing ownership of Common Stock of
               the Company.
  5.1 *   --   Opinion of Nelson Mullins Riley & Scarborough, L.L.P.
               regarding legality.
 10.1 +   --   Form of Service Agreement between OrthAlliance and Founding
               Practices.
 10.2 +   --   Form of Consulting and Business Service Agreement between
               OrthAlliance and Founding Practices.
 10.3 *   --   1997 Non-Employee Director Stock Option Plan.
 10.4 *   --   1997 Employee Stock Option Plan.
 10.5 *   --   Employment Agreement between the Company and Sam Westover.
 10.6 *   --   Consulting Agreement between the Company and Jonathan
               Wilfong.
 10.7 *   --   Employment Agreement between the Company and Craig Hethcox.
 10.8 +   --   Form of Employment Agreement between Allied Orthodontist and
               practice ownership entity.
 10.9 +   --   Letter Agreement dated April 18, 1997 between the Company
               and Robert S. Chilton.
 21.1 *   --   List of subsidiaries of OrthAlliance.
</TABLE>
    
 
                                      II-2
<PAGE>   81
   
<TABLE>
<CAPTION>
EXHIBIT
NUMBER         DESCRIPTION
- -------        -----------
<C>       <C>  <S>
 23.1 *   --   Consent of Nelson Mullins Riley & Scarborough, L.L.P.
               (contained in Exhibit 5.1 hereto).
 23.2     --   Consent of Arthur Andersen LLP Independent Public
               Accountants.
 24.1     --   Power of Attorney (included in signature page)
 27.1     --   Financial Data Schedule (for SEC use only).
 99.1 *   --   Consent of Drs. Durbin and Schmidt and Mr. Summers to serve
               as directors.
</TABLE>
    
 
- ---------------
 
   
+ Previously filed.
    
* To be filed by amendment.
 
     (b) Financial Statement Schedules
 
     All schedules are omitted since the required information is not present in
amounts sufficient to require submission of the schedule, or because the
information required is included in the financial statements and notes hereto.
 
ITEM 17.  UNDERTAKINGS.
 
     The undersigned Registrant hereby undertakes to provide to the Underwriters
at the closing specified in the Underwriting Agreement certificates in such
denominations and registered in such names as required by the Representative to
permit prompt delivery to each purchaser.
 
     Insofar as indemnification for liabilities arising under the Securities Act
of may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions or otherwise, the Registrant has
been advised that in the opinion of the Securities and Exchange Commission such
indemnification is against public policy as expressed in the Securities Act and
is, therefore, unenforceable. In the event that a claim for indemnification
against such liabilities (other than the payment by the Registrant of expenses
incurred or paid by a director, officer or controlling person of the Registrant
in the successful defense of any action, suit, or proceeding) is asserted by
such director, officer or controlling person in connection with the securities
being registered, the Registrant will, unless in the opinion of its counsel the
matter has been settled by controlling precedent, submit to a court of
appropriate jurisdiction the question whether such indemnification by it is
against public policy as expressed in the Securities Act and will be governed by
the final adjudication of such issue.
 
     The undersigned Registrant hereby undertakes that:
 
          1. For purposes of determining any liability under the Securities Act,
     the information omitted from the form of prospectus filed as part of this
     Registration Statement in reliance upon Rule 430A and contained in the form
     of prospectus filed by the Registrant pursuant to Rule 424(b)(1) or (4) or
     497(h) under the Securities Act shall be deemed to be part of the
     Registration Statement as of the time it was declared effective.
 
          2. For the purpose of determining any liability under the Securities
     Act, each post-effective amendment that contains a form of prospectus shall
     be deemed to be a new Registration Statement relating to the securities
     offered therein, and the offering of such securities at that time shall be
     deemed to be the initial bona fide offering thereof.
 
                                      II-3
<PAGE>   82
 
                                   SIGNATURES
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended, the
registrant has duly caused this Pre-Effective Amendment No. 1 to the
Registration Statement to be signed on its behalf by the undersigned, thereunto
duly authorized, in the City of Atlanta, State of Georgia, on June 11, 1997.
    
 
                                          OrthAlliance, Inc.
 
   
                                          By:         /s/ SAM WESTOVER
    
                                            ------------------------------------
                                                        Sam Westover
                                                  Chief Executive Officer
 
   
     Pursuant to the requirements of the Securities Act of 1933, as amended,
this Pre-Effective Amendment No. 1 to the Registration Statement has been signed
below by the following persons in the capacities and on the dates indicated.
Each person whose signature to this Registration Statement appears below hereby
constitutes and appoints Sam Westover and Jonathan E. Wilfong, and each of them,
as his true and lawful attorney-in-fact and agent, with full power of
substitution, to sign on his or her behalf individually and in any and all
capacities and to perform any acts necessary to be done in order to file all
amendments and post-effective amendments to this Registration Statement and any
registration statement relating to the same Offering as this Registration
Statement that is to be effective upon filing pursuant to Rule 462(b) under the
Securities Act, and any and all instruments or documents filed as part of or in
connection with this Registration Statement, the amendments thereto or a related
registration statement pursuant to Rule 462(b), and each of the undersigned does
hereby ratify and confirm all that said attorney-in-fact and agent, or his
substitutes, may do or cause to be done by virtue hereof.
    
 
   
<TABLE>
<CAPTION>
                        NAME                                          TITLE                      DATE
                        ----                                          -----                      ----
<C>                                                      <S>                                 <C>
 
                  /s/ SAM WESTOVER                       Chief Executive Officer,            June 11, 1997
- -----------------------------------------------------      President and Director
                    Sam Westover                           (principal executive officer)
 
                /s/ ROBERT S. CHILTON                    Chief Financial Officer             June 11, 1997
- -----------------------------------------------------      (principal financial and
                  Robert S. Chilton                        accounting officer)
 
               /s/ JONATHAN E. WILFONG                   Director                            June 11, 1997
- -----------------------------------------------------
                 Jonathan E. Wilfong
 
           /s/ RANDALL K. BENNETT, D.D.S.                Director                            June 11, 1997
- -----------------------------------------------------
             Randall K. Bennett, D.D.S.
</TABLE>
    
 
                                      II-4
<PAGE>   83
 
                                 EXHIBIT INDEX
 
   
<TABLE>
<CAPTION>
EXHIBIT
NUMBER       DESCRIPTION                                                   PAGE
- -------      -----------                                                   ----
<C>     <C>  <S>                                                           <C>
 1.1*   --   Form of Underwriting Agreement..............................
 2.1*   --   Agreement and Plan of Merger between OrthAlliance, USOC and
             Premier dated                       , 1997. ................
 2.2+   --   Form of Purchase and Sale Agreement between OrthAlliance and
             Founding Practices. ........................................
 2.3+   --   Form of Agreement and Plan of Reorganization between
             OrthAlliance and Founding Practices. .......................
 2.4*   --   Form of Purchase and Sale of Stock Agreement between
             OrthAlliance and Founding Practices. .......................
 3.1*   --   Amended and Restated Certificate of Incorporation of the
             Company. ...................................................
 3.2*   --   Amended and Restated Bylaws of the Company. ................
 4.1*   --   Form of certificate evidencing ownership of Common Stock of
             the Company. ...............................................
 5.1*   --   Opinion of Nelson Mullins Riley & Scarborough, L.L.P.
             regarding legality. ........................................
10.1+   --   Form of Service Agreement between OrthAlliance and Founding
             Practices. .................................................
10.2+   --   Form of Consulting and Business Service Agreement between
             OrthAlliance and Founding Practices. .......................
10.3*   --   1997 Non-Employee Director Stock Option Plan. ..............
10.4*   --   1997 Employee Stock Option Plan. ...........................
10.5*   --   Employment Agreement between the Company and Sam
             Westover. ..................................................
10.6*   --   Consulting Agreement between the Company and Jonathan
             Wilfong. ...................................................
10.7*   --   Employment Agreement between the Company and Craig
             Hethcox. ...................................................
10.8+   --   Form of Employment Agreement between Allied Orthodontist and
             practice ownership entity. .................................
10.9+   --   Letter Agreement dated April 18, 1997 between the Company
             and Robert S. Chilton. .....................................
21.1*   --   List of subsidiaries of OrthAlliance. ......................
23.1*   --   Consent of Nelson Mullins Riley & Scarborough, L.L.P.
             (contained in Exhibit 5.1 hereto). .........................
23.2    --   Consent of Arthur Andersen L.L.P. Independent Public
             Accountants. ...............................................
24.1    --   Power of Attorney (included in signature page)..............
27.1    --   Financial Data Schedule (for SEC use only)..................
99.1*   --   Consent of Drs. Durbin and Schmidt and Mr. Summers to serve
             as directors. ..............................................
</TABLE>
    
 
- ---------------
 
   
+ Previously filed.
    
   
* To be filed by amendment.
    

<PAGE>   1

                                                                    EXHIBIT 23.2


                   CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS




As independent public accountants, we hereby consent to the use of our reports
(and to all references to our firm) included in or made part of this
Registration Statement.


ARTHUR ANDERSEN LLP

Atlanta, Georgia
June 11, 1997




<TABLE> <S> <C>

<ARTICLE> 5
<LEGEND>
THIS SCHEDULE CONTAINS SUMMARY FINANCIAL INFORMATION EXTRACTED FROM THE
FINANCIAL STATEMENTS OF ORTHALLIANCE, INC. FOR THE TWO MONTHS ENDED DECEMBER 31,
1996 AND THE THREE MONTHS ENDED MARCH 31, 1997, AND IS QUALIFIED IN ITS 
ENTIRETY BY REFERENCE TO SUCH FINANCIAL STATEMENTS.
</LEGEND>
<RESTATED>
       
<S>                             <C>                         <C>
<PERIOD-TYPE>                   2-MOS                       3-MOS
<FISCAL-YEAR-END>                          DEC-31-1996              MAR-31-1997
<PERIOD-START>                             OCT-21-1996              JAN-01-1997
<PERIOD-END>                               DEC-31-1996              MAR-31-1997
<CASH>                                               0                        0
<SECURITIES>                                         0                        0
<RECEIVABLES>                                        0                        0
<ALLOWANCES>                                         0                        0
<INVENTORY>                                          0                        0
<CURRENT-ASSETS>                                     0                        0
<PP&E>                                               0                        0
<DEPRECIATION>                                       0                        0
<TOTAL-ASSETS>                                       0                        0
<CURRENT-LIABILITIES>                                0                        0
<BONDS>                                              0                        0
                                0                        0
                                          0                        0
<COMMON>                                             0                        0
<OTHER-SE>                                           0                        0
<TOTAL-LIABILITY-AND-EQUITY>                         0                        0
<SALES>                                              0                        0
<TOTAL-REVENUES>                                     0                        0
<CGS>                                                0                        0
<TOTAL-COSTS>                                        0                        0
<OTHER-EXPENSES>                                     0                        0
<LOSS-PROVISION>                                     0                        0
<INTEREST-EXPENSE>                                   0                        0
<INCOME-PRETAX>                                      0                        0
<INCOME-TAX>                                         0                        0
<INCOME-CONTINUING>                                  0                        0
<DISCONTINUED>                                       0                        0
<EXTRAORDINARY>                                      0                        0
<CHANGES>                                            0                        0
<NET-INCOME>                                         0                        0
<EPS-PRIMARY>                                        0                        0
<EPS-DILUTED>                                        0                        0
        

</TABLE>


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