AMERICAN DENTAL TECHNOLOGIES INC
8-K, 1996-08-09
ELECTROMEDICAL & ELECTROTHERAPEUTIC APPARATUS
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<PAGE>   1
                                 UNITED STATES

                       SECURITIES AND EXCHANGE COMMISSION

                              WASHINGTON, DC 20549


                                    FORM 8-K


                                 CURRENT REPORT

                     PURSUANT TO SECTION 13 OR 15(d) OF THE
                             SECURITIES ACT OF 1934


      Date of Report (Date of earliest event reported):     July 31, 1996


                          Commission File No:  0-19195



                       AMERICAN DENTAL TECHNOLOGIES, INC.
             (Exact Name of Registrant as specified in its charter)



                        Delaware                        38-2905258
            (State or other jurisdiction of          (I.R.S. Employer
             incorporation or organization)       Identification Number)


        28411 Northwestern Highway, Suite 1100          48034-5541
        Southfield, Michigan
        (Address of principal executive offices)        (Zip Code)



              Registrant's telephone number, including area code:
                                 (810) 353-5300









<PAGE>   2


ITEM 1. CHANGES IN CONTROL OF REGISTRANT

     As of July 31, 1996, following consummation of the Merger described in
Item 2 below, the Board of Directors of American Dental Technologies, Inc.
("ADT") consists of four incumbent directors: William D. Myers, Anthony D.
Fiorillo, J. Bernard Machen and Bertrand R. Williams, Sr., and four former
Texas Airsonics, Inc. ("Texas Air") directors: Ben J. Gallant, Wayne A. Johnson
II, Charles A. Nichols and John E. Vickers III.  A ninth director may be
appointed, but has not been identified.  William D. Myers and Ben J. Gallant
have executed a Voting Agreement dated February 23, 1996 providing generally
for the voting of their respective shares of ADT common stock for the election
of William D. Myers and Ben J. Gallant to the board of directors of ADT.  The
voting agreement will terminate on the earlier of a mutual agreement to
terminate or immediately following the conclusion of the third annual meeting
of the stockholders of ADT after July 31, 1996.

     Upon consummation of the Merger, ADT established an executive committee
consisting of Anthony D. Fiorillo, the President and Chief Executive Officer of
ADT, and Ben J. Gallant, the President and Chief Executive Officer of the
wholly owned Texas Airsonics, Inc. subsidiary.  The executive committee has the
same power as the President and Chief Executive Officer of ADT, a position
formerly held solely by Mr. Fiorillo.  Messrs. Fiorillo and Gallant report to
the ADT Board of Directors. Deadlocks on management decisions by this committee
will be decided by the entire ADT Board of Directors.

     The following table sets forth certain information regarding the ownership
of ADT common stock as of July 31, 1996, before and after the Merger, by the
persons listed who are known by ADT to own beneficially 5% or more of ADT's
outstanding shares of common stock, by each of the current directors and
executive officers of ADT, and by all of ADT's directors and executive officers
as a group.


<TABLE>
<CAPTION>
                                            Pre-Merger                      Post-Merger            
                                       Number of  Percent of           Number of      Percent of      
Name                                   Shares(1)   Class(2)            Shares (1)      Class(2)       
<S>                                    <C>        <C>                  <C>              <C>             
                                                                                                   
William D. Myers, M.D.,                                                                            
Chairman of the Board (3)              4,711,469        27.1            4,711,469        16.4      
                                                                                                   
William D. Maroney (4)                 3,253,182        18.5            3,253,182        11.2      
                                                                                                   
Michael F. Radner                      2,705,529        15.8            2,705,529         9.5      
                                                                                                   
Anthony D. Fiorillo, President, Chief                                                              
Executive Officer, Chief                                                                           
Operating Officer and a Director         571,666         3.5              571,666         2.0      
                                                                                                   
Bertrand R. Williams, Sr., Director       34,458         (7)               34,453         (7)      
                                                                                                   
J. Bernard Machen, Director                1,875         (7)                1,875         (7)      
                                                                                                   
Diane M. Miller                                                                                    
Chief Financial Officer                  140,000         (7)              140,000         (7)      
                                                                                                   
Terry D. Myers, Director of                                                                        
Education and Training (5)               550,082         3.4              550,082         2.0      
                                                                                                   
Johannes Homolko, Director of                                                                      
European Operations                       87,656         (7)               87,656         (7)      
                                                                                                   
</TABLE>




<PAGE>   3

<TABLE>
<CAPTION>                               
                                            Pre-Merger                          Post-Merger
                                       Number of     Percent of         Number of       Percent of
Name                                   Shares(1)      Class(2)          Shares (1)       Class(2)
<S>                                   <C>              <C>               <C>            <C>
Thomas M. Waugh         
Vice President - Operations               66,667         (7)               66,667         (7)
         
Raymond F. Winter         
Secretary                                 93,639         (7)               93,639         (7)
         
Texas Airsonics, Inc. (6)              3,445,832        18.6                    0           0
         
Ben J. Gallant, President and         
Chief Executive Officer of ADT's         
Texas Airsonics, Inc. subsidiary         
and a Director                           743,019         4.6            3,767,456        13.7
         
Charles A. Nichols,         
Director                                  27,288         (7)            1,993,850         7.3
         
Wayne A. Johnson II,         
Director                                   9,520         (7)              871,519         3.2
         
John E. Vickers III,         
Director                                 165,975         1.0              518,600         1.9
         
Denics Co., Ltd.                         860,240         5.4            1,689,055         6.2
         
All executive officers and directors         
as a group (10 persons prior to and
13 persons after the Merger)           6,350,165        34.4           12,890,337        43.1
</TABLE>



(1)  The column sets forth shares of ADT common stock which are deemed to be
     "beneficially owned" by the persons named in the table under Rule 13d-3 of
     the SEC, including shares of ADT common stock that may be acquired upon
     the exercise of stock options or common stock purchase warrants that are
     presently exercisable or become exercisable within 60 days as follows:
     William D. Myers and spouse- 1,381,126 shares; William D. Maroney and
     spouse - 1,611,110 shares; Michael F. Radner - 1,139,125 shares; Anthony
     D. Fiorillo - 566,666 shares; Bertrand R. Williams, Sr. - 3,125 shares; J.
     Bernard Machen - 1,875 shares; Diane M. Miller - 140,000 shares; Terry D.
     Myers - 137,564 shares; Johannes Homolko - 87,656 shares; Thomas M. Waugh
     - 66,667 shares; Raymond F. Winter - 72,333 shares; and all executive
     officers and directors as a group - 2,475,137 (Pre-Merger) and 2,457,012
     shares (Post-Merger).  The column excludes shares of ADT common stock that
     may be acquired upon the exercise of the following Merger Warrants
     (defined in Item 2 below) that will become exercisable August 1, 1997:
     Ben J. Gallant - 1,851,458 shares; Charles A. Nichols - 1,203,863 shares;
     Wayne A. Johnson II - 527,687 shares; John E. Vickers III - 215,865 shares
     and Denics - 507,372 shares.  Each of the persons named in the table has
     sole voting and investment power with respect to all shares beneficially
     owned by them, except as described in the following footnotes.

(2)  Except as noted below, for purposes of calculating the percentage of ADT
     common stock beneficially owned, the shares issuable to each person under
     stock options or common stock purchase warrants exercisable currently or
     within 60 days are considered outstanding and added to the shares of ADT
     common stock actually outstanding.The number of shares




<PAGE>   4

     outstanding prior to the Merger was 16,006,795 and the number outstanding
     immediately following the Merger was 27,436,570.

(3)  Includes 1,496,287 shares of ADT common stock and 922,222 common stock
     purchase warrants owned jointly with and/or individually by his spouse.

(4)  Includes 1,265,436 shares of ADT common stock and 1,611,110 common stock
     purchase warrants owned by his spouse.

(5)  Includes 397,133 shares of ADT common stock owned by his spouse.

(6)  The Pre-Merger column includes shares owned individually by Texas Air's
     officers and directors, Ben J. Gallant, John E. Vickers III, Charles A.
     Nichols, and Wayne A. Johnson II, respectively, and warrants for 2,500,000
     shares of ADT common stock issued to Texas Air that were canceled when the
     Merger described in Item 2 was consummated.

(7)  Less than one percent.

- --------------------

ITEM 2. ACQUISITION OR DISPOSITION OF ASSETS

     At  the close of business on July 31, 1996, Texas Air was merged with and
into ADT Merger Corp. ("Sub"), a wholly owned subsidiary of ADT, and Texas
Air's separate existence ceased (the "Merger").  Concurrently, Sub changed its
name to Texas Airsonics, Inc.  The Merger was effected pursuant to the Restated
Agreement and Plan of Reorganization and associated Restated Agreement of
Merger, dated as of November 22, 1995, by and among ADT, Sub and Texas Air
(collectively referred to herein as the "Merger Agreement"), which was the
result of negotiations between the representatives of ADT and Texas Air.

     On July 31, 1996, the effective date of the Merger, pursuant to the Merger
Agreement, each issued and outstanding share of Texas Air common stock was
converted into the right to receive 5.425 shares of ADT common stock together
with a warrant to purchase 3.321 shares of ADT common stock at a purchase price
of $1.4104 per share for a period commencing August 1, 1997 and ending July 31,
1999 (a "Merger Warrant").  On July 31, 1996, there were 2,106,871 shares of
Texas Air common stock outstanding.  No fractional shares of ADT common stock
will be issued because of the Merger or upon exercise of the Merger Warrants.
A cash payment will be made (based on the closing sale price of ADT common
stock as reported by the Nasdaq SmallCap Market on July 31, 1996 or, in the
case of a Merger Warrant, on the date of exercise) in lieu of any fractional
share to which a stockholder might otherwise be entitled.

     ADT develops, manufactures and markets high technology dental products
designed for general dentistry.  ADT's primary products are KCP(R) cavity
preparation systems and PulseMaster(R) pulsed dental lasers.  Texas Air
develops, manufactures and markets high precision micro abrasive systems for
dentistry and numerous industrial applications.  Texas Air's primary product
lines are KCP cavity preparation systems for dentistry and air abrasive jet
machining ("AJM") systems for industrial applications.  Texas Air has the
exclusive manufacturing rights for the KCP dental systems worldwide, except for
Japan and the Pacific Rim, through 2003.  ADT is the exclusive distributor of
all KCP dental products manufactured by Texas Air and has been Texas Air's
primary customer since 1991.  ADT's purchases of KCP units and related parts
from Texas Air were $3,663,000, $1,852,000 and $3,367,000 for the years ended
December 31, 1995, 1994 and 1993, respectively.  The assets of Texas Air
acquired by ADT in the Merger consist primarily of inventory, cash, accounts
receivable, a modern 21,000 square foot manufacturing facility and related
equipment located in Corpus Christi, Texas.  ADT intends for Texas Air to
continue operations following the Merger.




<PAGE>   5


     On February 12, 1993, ADT acquired the manufacturing rights for all dental
air abrasive products from Texas Air in exchange for 165,975 shares of
restricted ADT common stock and entered into a subcontract with Texas Air to
manufacture such products for ADT.  ADT also obtained the rights to patents,
patent applications and other proprietary intellectual property from Ben J.
Gallant, the President of Texas Air, in exchange for $160,000 to be paid in
four annual installments of $40,000 commencing April 1994 and $640,000 of
restricted common stock to be issued in four annual installments.  The number
of shares to be issued each year is based upon the average market value of
ADT's common stock during the last five trading days immediately prior to April
18th for each of the four years in the period ending April 18, 1996.  Mr.
Gallant has received 705,666 shares of ADT common stock pursuant to this
arrangement.  ADT also paid a monthly consulting fee of $8,333 under the
February 1993 agreement to Mr. Gallant for technical advice on manufacturing,
product safety, product serviceability, field testing and warranty
satisfaction.  This consulting arrangement terminated in June 1996.

     On September 30, 1994, ADT amended its sub-contract manufacturing
agreement for air abrasive products with Texas Air to extend the term of that
agreement through December 2003.  In exchange, Texas Air reduced its price on
the products being sold to ADT; increased ADT's accounts payable credit limit
to $1.5 million; and agreed to share research and development, legal, and
marketing costs related to air abrasive products.  At December 31, 1995,
$792,000 was outstanding for accounts payable and Texas Air's share of research
and development, legal, and marketing costs was $895,000.  ADT's obligations to
Texas Air are secured by a pledge of ADT's air abrasive patent rights.  ADT has
minimum purchase commitments of approximately $1,650,000 for 1996, and no
purchase commitments thereafter.  In consideration of the price reductions,
credit limit increase and the agreements between the parties, on November 1,
1994, ADT issued Texas Air warrants to purchase 1,000,000 shares of ADT common
stock at $2.00 per share, exercisable through October 31, 1996 and Texas Air
became a 5% owner.  In August 1995, ADT extended the exercise period of these
warrants to August 1, 1998.  When the Merger was consummated, the manufacturing
agreement and these warrants to purchase 1,000,000 shares of ADT common stock
were canceled.

     On August 7, 1995, ADT obtained a $1,500,000 loan from Texas Air with
interest payable at prime.  Interest is due on a quarterly basis.  A principal
payment of $200,000 due May 1, 1996 was paid and the balance, which was
originally due on August 1, 1996, was extended following a $200,000 principal
payment on August 1, 1996.  Approximately $1,410,000 of these loan proceeds
have been deposited with the court to stay enforcement of a judgment against
ADT in the Alameda Superior Court, Oakland, California, pending an appeal of
that case.  However, that case was recently settled and ADT anticipates the
funds will be released by the court and the loan repaid.  ADT's obligations to
Texas Air are secured by a pledge of all ADT's assets.  Simultaneously, ADT
granted Texas Air warrants to acquire up to 1,500,000 shares of ADT common
stock at an exercise price of $1.00 per share, exercisable any time between
January 1, 1996 and August 1, 1998.  These warrants to acquire 1,500,000 shares
of ADT common stock were canceled when the Merger was consummated.

     On June 10, 1993, ADT agreed with Denics Co., Ltd. ("Denics") to form a
joint venture to distribute dental products in certain Asian and Pacific
markets.  Under the terms of the agreement, as amended in July and August 1993,
ADT granted Denics territorial manufacturing rights for all dental laser and
air abrasive products owned by ADT, in Japan.  In consideration, Denics
provided ADT with a $3,000,000 non-refundable, prepaid royalty payment.  By
mutual agreement, the formation of the contemplated joint venture, which is to
exist for an initial term of ten years, has been delayed.  During 1993, ADT
issued Denics convertible Series A preferred stock in exchange for $2,000,000
in loans made to ADT during 1993.  In April 1994, Denics converted all 860,240
shares of Series A preferred stock into 860,240 shares of ADT common stock and
became a 5% owner.  As of December 31, 1995, ADT also has $800,000 outstanding
under a $1,000,000 note payable to Denics.  Interest is payable each June 30
and December 31 at 3% above the discount rate in Japan (0.5% at December 31,
1995).  Principal payments of $200,000 are payable each June 30.




<PAGE>   6

Borrowings are secured by an assignment of ADT's Japanese patent rights and
related technologies.  ADT had accounts receivable from Denics of $640,059 at
December 31, 1995.  ADT earned royalty payments from Denics or its affiliates
for dental laser units sold in Japan and certain Asian and Pacific markets, net
of foreign taxes, of $261,000 and $285,000 during the years ended December 31,
1995 and 1994, respectively.  ADT realized $3,671,568, $3,320,300 and $306,855
during the years ended December 31, 1995, 1994 and 1993, respectively, from the
sale of KCP units, lasers and related parts to Denics.  Denics was a 7%
stockholder of Texas Air prior to the Merger.


               ITEM 7.  FINANCIAL STATEMENTS, PRO FORMA FINANCIAL
                              INFORMATION AND EXHIBITS

     (a) Financial Statements of Business Acquired



                         Report of Independent Auditors


Board of Directors
Texas Airsonics, Inc.


We have audited the accompanying balance sheets of Texas Airsonics, Inc. as of
December 31, 1995, 1994 and 1993, and the related statements of operations,
stockholders' equity, and cash flows for the years then ended.  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 audits.

We conducted our audits 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 audits provide 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 Texas Airsonics, Inc. at
December 31, 1995, 1994 and 1993, and the results of its operations and cash
flows for the years then ended in conformity with generally accepted accounting
principles.





                                         Ernst & Young LLP

Detroit, Michigan


February 16, 1996
<PAGE>   7

                             Texas Airsonics, Inc.
                            Statements of Operations




<TABLE>
<CAPTION>
                                                  Years ended December 31
                                              ----------------------------------
                                                 1995        1994        1993
                                              ----------  ----------  ----------
<S>                                           <C>         <C>         <C>


Net sales (Note 4)                            $4,391,001  $2,709,971  $3,695,121
Cost of sales                                  2,628,695   1,370,111   1,828,678
                                              ----------  ----------  ----------
Gross profit                                   1,762,306   1,339,860   1,866,443

Selling, general and administrative (Note 4)   1,455,949     697,449     668,075
Research and development                         272,000       4,658       1,550
                                              ----------  ----------  ----------
Income from operations                            34,357     637,753   1,196,818

Other income (expense):
  Manufacturing technology rights (Note 4)                             1,039,575
  Interest and other                              70,030      30,881      21,527
  Interest expense                               (58,362)    (12,085)    (20,398)
  Gain (loss) on investments (Note 2)             33,194    (182,572)   (547,988)
                                              ----------  ----------  ----------

Income before federal income taxes                79,219     473,977   1,689,534
Income taxes (Note 6)                             33,500     173,000     599,300
                                              ----------  ----------  ----------

Net income                                    $   45,719  $  300,977  $1,090,234
                                              ==========  ==========  ==========
</TABLE>


                            See accompanying notes.

<PAGE>   8
                             Texas Airsonics, Inc.
                                 Balance Sheets

<TABLE>
<CAPTION>
                                                          December 31
                                                 1995        1994        1993
                                              ----------  ----------  ----------
<S>                                           <C>         <C>         <C>
ASSETS
Current assets:
  Cash                                        $  724,831  $  728,735  $1,055,025
  Accounts receivable (Notes 3 and 4)          1,844,085     780,451     569,306
  Inventories (Note 3)                           640,667     528,023     357,810
  Prepaid expenses and other current assets       33,342      11,323      13,833
  Note receivable (Note 4)                     1,500,000
  Deferred taxes (Note 6)                                     64,800
  Federal income taxes receivable (Note 6)       159,444
                                              ----------  ----------  ----------
Total current assets                           4,902,369   2,113,332   1,995,974

Property and equipment, net (Note 1)             817,647     419,241     390,861

Intangibles and other assets:
  Intellectual property rights, net (Note 4)     163,510     176,577     189,644
  Investments (Note 2)                                        66,390     491,587
  Other                                              500       1,975       2,966
                                              ----------  ----------  ----------
Total intangibles and other assets               164,010     244,942     684,197
                                              ----------  ----------  ----------

Total assets                                  $5,884,026  $2,777,515  $3,071,032
                                              ==========  ==========  ==========
</TABLE>

<TABLE>
<CAPTION>
                                                          December 31
                                                 1995        1994        1993
                                              ----------  ----------  ----------
<S>                                           <C>         <C>         <C>
LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Accounts payable                            $1,465,051  $  255,294  $  114,872
  Current maturities of long-term 
    debt (Note 3)                                803,329      66,159      78,281
  Note payable (Note 3)                                       30,000
  Taxes payable                                   35,292      63,784      98,734
  Deferred compensation                                                   87,300
  Federal income taxes payable (Note 6)                       87,446     556,844
  Deferred taxes (Note 6)                         11,700
  Other liabilities                               31,444       8,022       1,011
                                              ----------  ----------  ----------
Total current liabilities                      2,346,816     510,705     937,042

Long-term debt, less current 
    maturities (Note 3)                          690,000      53,328     118,864

Stockholders' equity:
  Common stock, no par value, and paid-in 
    capital, 50,000,000 shares authorized, 
    shares outstanding 2,106,871 in 1995,  
    1,971,871 in 1994 and 1,884,094 in 1993    2,155,568   1,362,868   1,080,222
  Retained earnings                            1,046,088   1,205,060   1,284,904
                                              ----------  ----------  ----------
                                               3,201,656   2,567,928   2,365,126
  Less treasury stock-at cost  
    (427,473 shares in 1995 and 1994 
    and 425,250 shares in 1993) (Note 5)        (354,446)   (354,446)   (350,000)
                                              ----------  ----------  ----------
Total stockholders' equity                     2,847,210   2,213,482   2,015,126
                                              ----------  ----------  ----------

Total liabilities and stockholders' equity    $5,884,026  $2,777,515  $3,071,032
                                              ==========  ==========  ==========
</TABLE>

                            See accompanying notes.

<PAGE>   9
                             Texas Airsonics, Inc.
                            Statements of Cash Flows

<TABLE>
<CAPTION>
                                                            Years ended December 31
                                                         1995        1994          1993
                                                     -----------   ---------   -----------
<S>                                                  <C>          <C>         <C>
OPERATING ACTIVITIES
Net income                                           $    45,719  $  300,977   $ 1,090,234
Adjustments to reconcile net income to net cash
  provided by (used in) operating activities:
  Compensatory stock options                              42,700                   101,850
  Manufacturing rights                                                          (1,039,575)
  Depreciation and amortization                           80,591      64,937        60,185
  Deferred taxes                                          76,500     (64,800)        8,200
  Provision for investment losses                                    182,572       547,988
  Gain on sale of investments                            (33,194)
  Changes in operating assets and liabilities:
    Accounts receivable                               (1,055,994)   (211,145)     (257,797)
    Inventory                                           (112,644)   (170,213)       47,425
    Prepaid expenses                                     (22,019)      2,510       (12,484)
    Accounts payable                                   1,209,757     140,422        20,771
    Taxes payable                                        (28,492)    (34,950)       97,964
    Other liabilities                                     23,422       7,011         1,011
    Federal income taxes payable                        (254,530)   (469,398)      443,222
                                                     -----------  ----------   -----------

Net cash provided by (used in) operating activities      (28,184)   (252,077)    1,108,994

INVESTING ACTIVITIES
Proceeds from sale of investments                         99,584
Purchases of property and equipment                     (465,930)    (78,759)     (293,292)
Receivable from ADT                                   (1,500,000)
Other                                                      1,475        (500)
                                                     -----------  ----------   -----------

Net cash used in investing activities                 (1,864,871)    (79,259)     (293,292)

FINANCING ACTIVITIES
Proceeds from bank borrowings                          1,490,000
Proceeds from issuance of common stock                   750,000     250,900         2,300
Dividends paid                                          (204,691)   (138,196)
Payments on notes payable                               (146,158)    (77,658)     (127,943)
Purchase of treasury stock                                           (30,000)
                                                     -----------  ----------   -----------
Net cash provided by (used in) financing activities    1,889,151       5,046      (125,643)
                                                     -----------  ----------   -----------
Net increase (decrease) in cash                           (3,904)   (326,290)      690,059

Cash at beginning of year                                728,735   1,055,025       364,966
                                                     -----------  ----------   -----------
Cash at end of year                                  $   724,831  $  728,735   $ 1,055,025
                                                     ===========  ==========   ===========
</TABLE>

                            See accompanying notes.

<PAGE>   10


                             Texas Airsonics, Inc.
                       Statements of Stockholders' Equity


<TABLE>
<CAPTION>
                                   COMMON STOCK
                                AND PAID-IN CAPITAL                  TREASURY STOCK
                              ----------------------   RETAINED   ---------------------
                                SHARES      AMOUNT     EARNINGS     SHARES     AMOUNT       TOTAL
                              ----------  ----------  ----------  ---------  ----------  ----------
<S>                           <C>         <C>         <C>         <C>        <C>         <C>
Balance at January 1, 1993     1,654,094  $  869,372  $  194,670  (425,250)  $(350,000)  $  714,042
Net income for 1993                                    1,090,234                          1,090,234
Exercise of stock options        230,000     210,850                                        210,850
                              ----------  ----------  ----------  --------   ---------   ----------

Balance at December 31, 1993   1,884,094   1,080,222   1,284,904  (425,250)   (350,000)   2,015,126
Net income for 1994                                      300,977                            300,977
Dividends paid (Note 5)                                 (380,821)                          (380,821)
Sale of common stock from
 treasury                         27,777     194,446               (27,777)     55,554      250,000
Exercise of stock options         90,000      88,200                                         88,200
Purchases of common stock        (30,000)                           30,000     (60,000)     (60,000)
                              ----------  ----------  ----------  --------   ---------   ----------

Balance at December 31, 1994   1,971,871   1,362,868   1,205,060  (427,473)   (354,446)   2,213,482
Net income for 1995                                       45,719                             45,719
Dividends paid (Note 5)                                 (204,691)                          (204,691)
Sale of common stock             125,000     750,000                                        750,000
Exercise of stock options         10,000      42,700                                         42,700
                              ----------  ----------  ----------  --------   ---------   ----------

Balance at December 31, 1995   2,106,871  $2,155,568  $1,046,088  (427,473)  $(354,446)  $2,847,210
                              ==========  ==========  ==========  ========   =========   ==========
</TABLE>

See accompanying notes.



<PAGE>   11

                             Texas Airsonics, Inc.
                         Notes To Financial Statements
                               December 31, 1995


1.  ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Texas Airsonics, Inc. (the "Company") develops and manufactures air abrasive
products for dentistry and various other industrial applications.

INVENTORIES

Inventories are stated at the lower of cost, determined by the first-in,
first-out method, or market.  Inventories consist of abrasive powders and raw
materials used in the manufacture of the Company's air abrasive products.

PROPERTY AND EQUIPMENT

Property and equipment are stated at cost.  Depreciation for financial
reporting and income tax purposes is computed using accelerated methods over
the estimated useful lives of the assets.

At December 31, property and equipment consisted of the following:


<TABLE>
<CAPTION>
                                                                     Useful
                                   1995        1994        1993       Lives
                                ----------  ----------  ---------- ------------
<S>                            <C>         <C>         <C>          <C>

Land                           $   30,000  $   30,000  $   30,000
Building                          643,524     236,860     236,860    31 years
Office furniture and equipment     74,015      50,584      42,611    5-7 years
Machinery and equipment           333,407     304,178     239,076    5-7 years
Leasehold improvements              9,885       9,885       9,885    7 years
Automobiles                        31,994      31,994      26,310    5 years
                               ----------  ----------  ----------
                                1,122,825     663,501     584,742
Accumulated depreciation          305,178     244,260     193,881
                               ----------  ----------  ----------
                               $  817,647  $  419,241  $  390,861
                               ==========  ==========  ==========
</TABLE>


INCOME TAXES

Income tax expense is based on  income as reported in the statements of
operations.  When income and expenses are recognized in different periods for
tax purposes, deferred taxes are provided in the financial statements.

INTANGIBLE ASSETS

Intangible assets consist of intellectual property rights and patents and are
stated at cost less accumulated amortization.  The Company is amortizing
manufacturing and technology rights over 15 years and patents over 5 years.
Accumulated amortization was $133,314, $120,247 and $105,689 at December 31,
1995, 1994 and 1993, respectively.

INVESTMENTS

Investments are accounted for in accordance with Statement of Financial
Accounting Standards Number 115 "Accounting for Certain Investments in Debt and
Equity Securities" ("Statement 115").  The Company's investments are considered
available for sale as defined in Statement 115 and are stated at fair value.


<PAGE>   12
                             Texas Airsonics, Inc.
                         Notes To Financial Statements
                               December 31, 1995


1. ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES (CONTINUED)

USE OF ESTIMATES

The preparation of the accompanying financial statements in conformity with
generally accepted accounting principles requires management to make estimates
and assumptions that affect the amounts reported in the financial statements
and accompanying notes.  Actual results could differ from those estimates.

FAIR VALUE OF FINANCIAL INSTRUMENTS

The fair value of the Company's cash, accounts receivable, note receivable, and
investments approximates their carrying value due to their short term nature.
The fair value of the Company's notes payable approximates their carrying value
based on the Company's incremental borrowing rates as compared to similar types
of current borrowing arrangements.

2. INVESTMENTS

Investments consist of unregistered and restricted shares of common stock of
American Dental Technologies, Inc. (ADT).  The Company is restricted from
trading the common stock of ADT for two years from the date of its acquisition
under the provisions of the Securities and Exchange Commission's rule 144;
accordingly, the carrying value of the common stock upon receipt was recorded
at a discount from the trading value of related registered and unrestricted
shares of ADT common stock.

The decrease in the fair value of the ADT common stock is considered other than
temporary by the Company and, accordingly, changes in the valuation allowance
have been included in operations in the accompanying financial statements.  The
valuation allowance on investments approximated $584,000 and $548,000 at
December 31, 1994 and 1993, respectively.

In December 1995, an officer of the Company purchased the remaining shares of
ADT common stock from the Company for approximately $96,000.

The following summarizes the Company's investment activities:

<TABLE>
<CAPTION>
                                                COMMON STOCK OF
                                       AMERICAN DENTAL TECHNOLOGIES, INC.
                                                SHARES   FAIR VALUE
                                              ---------  ----------
            <S>                              <C>        <C>
            Balance at December 31, 1992        131,148  $  389,575
            Shares received in 1993 (Note 4)    165,975     650,000
            Decline in fair value in 1993                  (547,988)
                                             ----------  ----------

            Balance at December 31, 1993        297,123     491,587
            Dividend of shares (Note 5)        (131,148)   (242,625)
            Decline in fair value in 1994                  (182,572)
                                             ----------  ----------

            Balance at December 31, 1994        165,975      66,390
            Sale of shares in 1995             (165,975)    (66,390)
                                             ----------  ----------

            Balance at December 31, 1995             --  $       --
                                             ==========  ==========
</TABLE>



<PAGE>   13


                             Texas Airsonics, Inc.
                         Notes To Financial Statements
                               December 31, 1995


3. NOTES PAYABLE AND LONG-TERM DEBT

At December 31, 1995, 1994 and 1993 long-term debt consisted of the following:


<TABLE>
<CAPTION>

                                          1995               1994             1993             Collateral
                                        ----------         --------         --------           ----------
<S>                                     <C>                <C>              <C>                <C>
Note payable to bank, bearing 
interest at the bank's prime rate 
(8.5% at December 31, 1995),                                                                   Inventory and
payable in quarterly installments                                                              accounts
of $200,000, plus interest              $1,490,000                                             receivable


Note payable to Bank,
bearing interest at 9%,
payable in monthly
installments of $2,117,                                                                        Certain   
including interest                                         $ 10,374         $ 33,511           equipment 
                                                                                                           

Note payable to Finance
Company, bearing interest 
at 8%, payable in monthly
installments of $488,
including                                                                                      1992 Ford
interest                                     3,329            9,113           13,634           Explorer

Note payable to former
stockholder bearing
interest at 6%, payable in
annual installments of
$50,000, plus interest                                      100,000          150,000           Stock acquired
                                        ----------         --------         --------
                                         1,493,329          119,487          197,145
Less:  Current portion                     803,329           66,159           78,281
                                        ----------         --------         --------
Non-current portion                     $  690,000         $ 53,328         $118,864
                                        ==========         ========         ========
</TABLE>


At December 31, 1994 the Company had a noninterest bearing, unsecured $30,000
note outstanding which was paid on April 1, 1995.  The note comprised a portion
of the consideration for redemption of 30,000 shares of the Company's common
stock (Note 5).

4.  TRANSACTIONS AND AGREEMENTS WITH AMERICAN DENTAL TECHNOLOGIES

In April 1992, the Company entered into an agreement which provides American
Dental Technologies, Inc. ("ADT") the exclusive perpetual right to market and
sell the Company's air abrasive dental products.  In conjunction with this
agreement the Company assigned present and future patent rights related to air
abrasive dental products to ADT.  In exchange for this right the Company
received $300,000 in cash and 131,148 shares of restricted ADT common stock.
ADT maintained a lien against the restricted stock issued to the Company as
security for the Company's agreement to manufacture 500 KCP units through 1993.
Therefore, the Company recorded the fair value of the restricted stock,
$389,575, as deferred revenue at December 31, 1992.

In February 1993, the Company sold its manufacturing rights for all dental air
abrasive products to ADT in exchange 165,975 shares of restricted ADT common
stock.  In connection therewith, ADT terminated its lien and related production
contingency included in the 1992 agreement.  The Company recognized the revenue
deferred at December 31, 1992 of $389,575 together with the fair value
($650,000) of the 165,975 shares received in connection with the sale of its
manufacturing rights during the first quarter of 1993.


<PAGE>   14



                             Texas Airsonics, Inc.
                         Notes To Financial Statements
                               December 31, 1995


4.  TRANSACTIONS AND AGREEMENTS WITH AMERICAN DENTAL TECHNOLOGIES (CONTINUED)

On September 30, 1994, the Company and ADT extended the terms of an existing
exclusive manufacturing rights agreement for air abrasive products through
December 2003 and ADT agreed in exchange for a reduction in the price of
products sold to ADT and an increase in ADT's credit limit with the Company to
$1,500,000.  ADT's obligations to the Company are secured by a pledge of ADT's
air abrasive patent rights.  ADT has a minimum purchase commitment of
approximately $1,650,000 for 1996, and no purchase commitments thereafter.  On
November 1, 1994, ADT issued the Company warrants to purchase 1,000,000 shares
of ADT common stock at $2 per share, exercisable through October 31, 1996.

In August 1995, the Company loaned ADT $1,500,000.  The note bears interest at
the Company's bank's prime rate (8.5% at December 31, 1995) and is due August
1, 1996.  The note is secured by all assets, including intangible assets, of
ADT.

The Company's accounts receivable and sales include the following amounts with
ADT:


<TABLE>
<CAPTION>
                           Accounts   Accounts
                            Payable  Receivable    Sales
                           --------  ----------  ----------
                     <S>   <C>       <C>         <C>
                     1995  $895,000  $1,687,000  $3,663,000
                     1994               678,000   1,852,000
                     1993               479,000   3,367,000
</TABLE>


As a result of the agreements with ADT, the Company's continued operations are
dependent upon ADT's ability to market and sell the Company's products.  ADT's
failure or inability to meet its purchase commitments with the Company would
have a material adverse effect on the Company.

During the fourth quarter of 1995 the Company signed an agreement to merge with
ADT whereby each issued and outstanding share of the Company's common stock
would be exchanged for 11,429,775 shares of ADT's common stock and warrants to
purchase 6,996,919 additional shares of ADT common stock at $1.00 per share,
exercisable for three years.  The merger is subject to shareholder approval of
both companies and is expected to be completed in the second quarter of 1996.
The merger will be accounted for using the purchase method.

In addition, as part of the 1994 agreement, the Company agreed to reimburse ADT
for a portion of future research and development costs related to dental air
abrasive products, legal costs related to air abrasive technologies and
marketing expenses of new products.  In 1995, the Company's share of these
expenses approximated $895,000.

5.  STOCKHOLDERS' EQUITY

During 1994, the Company purchased 30,000 shares of its outstanding common
stock for $60,000.  The Company re-issued 27,777 shares of this stock for
$250,000 to Denics, Co., Ltd. ("Denics").

The Company declared and paid a cash dividend of 10 cents per share in October
1995 and 7 cents per share and a noncash dividend of ADT common stock in 1994.
Stockholders received 67 shares of ADT stock for each 1,000 shares of Company
stock owned (Note 2).

Pursuant to an agreement entered into on April 6, 1995, Denics subscribed for
125,000 shares of common stock of the Company at a price of $6 per share.
Denics also obtained an option to purchase 83,333 shares at $6 per share on or
before January 1, 1996 and 83,333 shares at $6 per share on or before July 1,
1996.  Denics was appointed exclusive distributor for the sale and distribution
of industrial air abrasive products in Japan and the Pacific Rim through
October 1, 1996.


<PAGE>   15


                             Texas Airsonics, Inc.
                         Notes To Financial Statements
                               December 31, 1995


6.  INCOME TAXES

Significant components of the provision for federal income taxes are as
follows:


<TABLE>
<CAPTION>
                                     1995      1994      1993
                                   ---------  --------  --------
                <S>                <C>        <C>       <C>
                Current (credit)   $(43,000)  $237,800  $591,100
                Deferred (credit)    76,500    (64,800)    8,200
                                   ---------  --------  --------
                                    $33,500   $173,000  $599,300
                                   =========  ========  ========
</TABLE>


Deferred taxes consist principally of differences in the timing of recognizing
losses on investments held for financial reporting and federal income tax
purposes.

A reconciliation of income tax computed at the federal statutory rates to
income tax expense is:


<TABLE>
<CAPTION>
                                           1995   1994    1993
                                           -----  -----  ------
                 <S>                       <C>    <C>    <C>
                 Tax at statutory rate     34.0%  34.0%   34.0%
                 Investment losses                        32.0
                 Sale of marketing rights                (35.0)
                 Compensation                      2.5     6.0
                 Intangibles and other      8.3            (.2)
                                           -----  -----  ------
                                           42.3%  36.5%   36.8%
                                           =====  =====  ======
</TABLE>


The Company paid income taxes of $156,000, $130,000 and $74,000 in 1995, 1994
and 1993, respectively.

7.  STOCK OPTIONS

Stock option activity is summarized as follows:
                    
<TABLE>
<CAPTION>
                                               Number of Shares
                                               ----------------
                   <S>                               <C>
                   Outstanding at December 31, 1992   15,000
                     Options granted                 305,000
                     Options exercised               230,000
                                                     -------
                   Outstanding at December 31, 1993   90,000
                     Options exercised                90,000
                                                     -------
                   Outstanding at December 31, 1994
                     Options granted                  10,000
                     Options exercised                10,000
                                                     -------
                   Outstanding at December 31, 1995       --
                                                     =======
</TABLE>


In 1993, the Company granted 200,000 options which had an exercise price of
$.01 to the Company's President in consideration for the acquisition of the
intellectual property rights of the industrial air abrasive technologies used
by the Company.  The difference between the fair value of the Company's common
stock and the exercise price of the stock options ($194,000) was capitalized as
intellectual property rights on the date of grant.

In 1993 and 1995 the Company granted 105,000 and 10,000 options, respectively,
with exercise prices of $.01 to certain of its employees and directors.  The
Company accounts for stock option grants in accordance with APB No. 25
"Accounting for Stock Issued to Employees" and accordingly, recognized
compensation expense in the accompanying financial statements for the
difference between the fair value of the shares and the option's exercise price
of $101,850 and $42,700 in 1993 and 1995, respectively.


<PAGE>   16
                             Texas Airsonics, Inc.
                       Condensed Statements of Operations
                                  (Unaudited)



<TABLE>
<CAPTION>
                                                 Three Months Ended
                                                      March 31
                                                  1996        1995
                                               ----------  -----------
          <S>                                  <C>        <C>
          Net sales                            $1,409,628  $ 1,015,906
          Cost of sales                           841,573      534,673
                                               ----------  -----------
          Gross profit                            568,055      481,233


          Selling, general and administrative     214,476      162,495
                                               ----------  -----------
          Income from operations                  353,579      318,738

          Other income (expense)
            Other                                  38,341        4,822
            Interest expense                      (32,664)        (457)
                                               ----------  -----------

          Income before income taxes              359,256      323,103
          Income tax                              122,803       95,546
                                               ----------  -----------
          Net income                           $  236,453  $   227,557
                                               ==========  ===========
</TABLE>



             See notes to unaudited condensed financial statements.


<PAGE>   17
                             Texas Airsonics, Inc.
                            Condensed Balance Sheets



<TABLE>
<CAPTION>
                                              March 31, 1996    December 31, 1995
                                              --------------    -----------------
                                                 (Unaudited)
 <S>                                          <C>                <C>
 ASSETS
 Current assets:
   Cash                                         $    404,191        $   724,831
   Accounts receivable                             2,017,470          1,844,085
   Inventories                                       507,545            640,667
   Prepaid expenses and other current assets          22,250             33,342
   Note receivable                                 1,500,000          1,500,000
   Prepaid federal income tax                        109,481            159,444
                                                ------------        -----------
 Total current assets                              4,560,937          4,902,369

 Property and equipment, net                         806,629            817,647
 Intangible assets                                   160,243            163,510
 Other assets                                         65,289                500
                                                ------------        -----------
 Total assets                                   $  5,593,098        $ 5,884,026
                                                ============        ===========

 LIABILITIES AND STOCKHOLDERS' EQUITY
 Current liabilities:
   Accounts payable                             $  1,170,794        $ 1,465,051
   Current maturities of long term debt              801,921            803,329
   Other liabilities                                 141,420             78,436
                                                ------------        -----------
 Total current liabilities                         2,114,135          2,346,816

 Long term debt, less current maturities             490,000            690,000

 Stockholders' equity:
   Common stock, no par value, and paid in
     capital 50,000,000 shares authorized
     shares outstanding 2,106,871
     in 1996 and 1995                              2,155,568          2,155,568
   Accumulated earnings                            1,187,841          1,046,088
   Less treasury stock                              (354,446)          (354,446)
                                                ------------        -----------
 Total stockholders' equity                        2,988,963          2,847,210

                                                ------------        -----------
 Total liabilities and stockholders' equity     $  5,593,098        $ 5,884,026
                                                ============        ===========
</TABLE>



             See notes to unaudited condensed financial statements.


<PAGE>   18
                             Texas Airsonics, Inc.
                       Condensed Statements of Cash Flows
                                  (Unaudited)




<TABLE>
<CAPTION>
                                                              Three Months Ended March 31
                                                                   1996            1995
                                                             --------------  --------------
<S>                                                          <C>             <C>
OPERATING ACTIVITIES:
Net income                                                    $     236,453   $   227,557
 Adjustments to reconcile net income                            
   to net cash provided by (used in) operating activities:    
     Depreciation                                                    16,580        13,374
     Amortization                                                     3,267         3,267

     Changes in operating assets and liabilities:
       Increase in accounts receivable                             (173,385)     (490,805)
       (Increase) decrease in inventory                             133,122       (11,610)
       (Increase) decrease in prepaid expenses                       11,092       (10,797)
       (Increase) decrease in federal income tax receivable          49,963       (11,727)
       Increase in other assets                                     (64,789)
       Decrease in accounts payable                                (294,257)       (9,434)
       Increase (decrease) in other non-current liabilities         (33,124)       66,196
                                                              -------------   -----------
Net cash used in operating activities                              (115,078)     (223,979)

INVESTING ACTIVITIES
 Purchases of property and equipment                                 (5,562)      (19,857)
                                                              -------------   -----------
Net cash used in investing activities                                (5,562)      (19,857)

FINANCING ACTIVITIES:
 Payments on notes payable                                         (200,000)      (30,000)
                                                              -------------   -----------
Net cash used in financing activities                              (200,000)      (30,000)

                                                              -------------   -----------
Decrease in cash                                                   (320,640)     (273,836)

Cash at beginning of period                                         724,831       728,735
                                                              -------------   -----------
Cash at end of period                                         $     404,191   $   454,899
                                                              =============   ===========
</TABLE>



             See notes to unaudited condensed financial statements.

<PAGE>   19
                             Texas Airsonics, Inc.
                    Notes to Condensed Financial Statements
                           March 31, 1996 (Unaudited)

1.    BASIS OF PRESENTATION AND OTHER ACCOUNTING INFORMATION

BASIS OF PRESENTATION

The accompanying unaudited condensed financial statement of Texas Airsonics,
Inc.  (the "Company") have been prepared by management in accordance with
generally accepted accounting principles for interim financial information.
Accordingly, they do not include all information and footnotes required by
generally accepted accounting principles for complete financial statements.  In
the opinion of management, all adjustments (consisting of normal recurring
accruals) considered for a fair presentation have been included.

The results of operations for the three months ended March 31, 1996 are not
necessarily indicative of the results to be expected for other quarters of 1996
for the year ended December 31, 1996.  The accompanying unaudited condensed
financial statements should be read with the annual consolidated financial
statements and notes for the fiscal year ended December 31, 1995.

INVENTORIES

Inventories consist of abrasive powders and raw materials used in the
manufacture of the Company's air abrasive products.

PROPERTY AND EQUIPMENT

Accumulated depreciation aggregated $308,107 at March 31, 1996 and $305,178 at
December 31, 1995.

INTANGIBLE ASSETS

Accumulated amortization aggregated $136,581 at March 31, 1996 and $133,314 at
December 31, 1995.

2.    TRANSACTIONS AND AGREEMENTS WITH AMERICAN DENTAL TECHNOLOGIES, INC. 
      ("ADT")

During the fourth quarter of 1995, the Company signed an agreement to merge
with ADT whereby each issued and outstanding share of the Company's common
stock would be exchanged for 11,429,775 shares of ADT's common stock and
warrants to purchase 6,996,919 additional shares of ADT common stock at $1.00
per share, exercisable for three years.  The merger is subject to shareholder
approval of both companies and is expected to be completed in the quarter of
1996.  The merger will be accounted for as a purchase.

In August 1995, the Company loaned ADT $1,500,000.  The note bears interest at
prime (8.25% at March 31, 1996).  A principal payment of $200,000 plus accrued
interest is due May 1, 1996.  The remaining principal and accrued interest is 
due from ADT on August 1, 1996.  The note is secured by all of ADT's assets.

3.    STOCKHOLDERS' EQUITY

During March 1996, the Company declared a cash dividend of $94,700, $0.045
cents per share, to be paid in April 1996.

<PAGE>   20
     (b) Pro Forma Financial Information

     The following unaudited pro forma condensed combined statements of
operations for the year ended December 31, 1995, the three month period ended
March 31, 1996 and the unaudited pro forma condensed combined balance sheets as
of December 31, 1995 and March 31, 1996, respectively, give effect to the
conversion of the outstanding shares of Texas Air Common Stock into shares of
ADT Common Stock at a conversion ratio of 5.425 shares of ADT Common Stock for
each outstanding share of Texas Air Common Stock as if the proposed Merger had
occurred on January 1, 1995 and January 1, 1996 and December 31, 1995 and March
31, 1996, respectively.  The pro forma information is based on the financial
statements of ADT and Texas Air, giving effect to the proposed Merger under the
purchase method of accounting and the assumptions and adjustments described in
the accompanying notes to the pro forma financial statements.

     These unaudited pro forma condensed combined financial statements may not
be indicative of the results that actually would have occurred if the Merger
had been in effect on the dates indicated or which may be obtained in the
future.  The unaudited pro forma condensed combined financial statements should
be read in conjunction with the audited financial statements for the year ended
December 31, 1995, the unaudited financial statements for the three months
ended March 31, 1996, and notes thereto of Texas Air and ADT which are included
herewith.


                       American Dental Technologies, Inc.
         Unaudited Pro Forma Condensed Combined Statement of Operations



<TABLE>
<CAPTION>
                                                                                  Year Ended December 31, 1995
                                                                                  ----------------------------
                                                                                              Pro Forma               Pro Forma
                                                        ADT              Texas Air           Adjustments               Combined
                                                    -----------          ----------          -----------              -----------
<S>                                                 <C>                  <C>                 <C>                      <C>  
Net sales                                           $13,325,536          $4,391,001          $(3,663,000)(a)          $14,053,537
Cost of sales                                         7,038,930           2,628,695           (3,371,800)(a)            6,354,065
                                                                                                  58,240(g)
                                                    -----------          ----------          -----------              -----------
Gross profit                                          6,286,606           1,762,306             (349,440)               7,699,472
Selling, general and administrative                   6,956,223           1,455,949              393,242(d)             8,792,347
                                                                                                 (13,067)(e)
Research and development                                784,319             272,000                                     1,056,319
                                                    -----------          ----------          -----------              -----------
Income (loss) from operations                        (1,453,936)             34,357             (729,615)              (2,149,194)
Other income (expense):
  Royalty income:
    Related party                                       261,000                                                           261,000
    Other                                                30,806                                                            30,806
  Other income                                           (1,621)             70,030              (52,150)(b)               16,259
  Interest expense                                     (110,415)            (58,362)              52,150 (b)             (116,627)
  Gain on investment                                                         33,194              (33,194)(f)
                                                    -----------          ----------          -----------              -----------
Income (loss) before income taxes                    (1,274,166)             79,219             (762,809)              (1,957,756)
Income tax                                                                   33,500              (33,500)(h)
                                                    -----------          ----------          -----------
Net profit (loss)                                   $(1,274,166)             45,719             (729,309)              (1,957,756)
                                                    ===========          ==========          ===========              ===========
Income (loss) from continuing
  operations per common share                            $(0.08)              $0.02                                        $(0.07)
                                                    ===========          ==========                                   ===========
Weighted average number of common
  and dilutive common equivalent
  shares outstanding                                 15,346,716           2,000,803                                    26,776,491
                                                    ===========          ==========                                   ===========
</TABLE>




   See notes to unaudited pro forma condensed combined financial statements.
<PAGE>   21
                       American Dental Technologies, Inc.
         Unaudited Pro Forma Condensed Combined Statement of Operations


<TABLE>
<CAPTION>
                                                           Three Months Ended March 31, 1996
                                                           ---------------------------------
                                                                        Pro Forma           Pro Forma
                                          ADT         Texas Air        Adjustments          Combined
                                      ----------      ---------        -----------         ----------
<S>                                   <C>            <C>               <C>                 <C>
Net sales                             $5,254,047     $1,409,628        $(1,269,280)(a)     $5,394,395
Cost of sales                          2,855,426        841,573         (1,260,280)(a)      2,447,947
                                                                            11,228 (g)
                                      ----------      ---------        -----------         ----------
Gross profit                           2,398,621        568,055            (20,228)         2,946,448

Selling, general
  and administrative                   1,669,058        214,476             98,311 (d)      1,978,578
                                                                            (3,267)(e)
Research and development                 234,350                                              234,350
                                      ----------      ---------        -----------         ----------
Income (loss) from operations            495,213        353,579           (115,272)           733,520
Other income (expense):
  Other                                   (4,640)        38,341            (32,664)(b)          1,037
  Interest expense                       (42,263)       (32,664)            32,664 (b)        (42,263)
                                      ----------      ---------        -----------         ----------
Income before income taxes               448,310        359,256           (115,272)           692,294
Income tax                                              122,803           (122,803)(h)
                                      ----------      ---------        -----------         ----------
Net income                              $448,310       $236,453        $     7,531         $  692,294
                                      ==========      =========        ===========         ==========
Income from continuing
  operations per common share           $   0.03        $  0.11                            $     0.02
                                      ==========      =========                            ==========
Weighted average number of
  common and dilutive common
  equivalent shares outstanding       17,258,826      2,106,871                            30,037,588
                                      ==========      =========                            ==========
</TABLE>




   See notes to unaudited pro forma condensed combined financial statements.



<PAGE>   22





                       American Dental Technologies, Inc.
              Unaudited Pro Forma Condensed Combined Balance Sheet



<TABLE>
<CAPTION>
                                                          December 31, 1995
                                                          -----------------
                                                                       Pro Forma       Pro Forma
                                                 ADT      Texas Air   Adjustments       Combined
                                             ----------  ----------  --------------    ----------
 <S>                                        <C>          <C>          <C>             <C>
 ASSETS
 Current assets:
   Cash                                     $  1,665,718 $  724,831   $   (10,000)(e) $  2,380,549
   Accounts receivable                         1,944,293  1,844,085    (1,771,910)(b)    2,016,468
   Inventories                                 1,905,856    640,667                      2,546,523
   Prepaid expenses and other
     current assets                              534,074    192,786       (21,789)(b)      705,071
   Loan receivable                                        1,500,000    (1,500,000)(b)
                                            ------------ ----------   -----------     ------------
 Total current assets                          6,049,941  4,902,369    (3,303,699)       7,648,611

 Prepaid foreign taxes                           225,000                                   225,000
 Long-term deposits                            1,410,267        500                      1,410,767
 Property and equipment, net                     262,042    817,647                      1,079,689
 Intangible assets                             5,037,446    163,510      (163,510)(e)   10,936,077
                                                                        5,898,631 (c)
                                            ------------ ----------   -----------     ------------

 Total assets                               $ 12,984,696 $5,884,026   $ 2,431,422     $ 21,300,144
                                            ============ ==========   ===========     ============

LIABILITIES AND STOCKHOLDERS' EQUITY
Current liabilities:
  Notes payable to related parties          $  1,700,000              $(1,500,000)(b) $    200,000
  Note payable to bank                                   $  803,329                        803,329
  Accounts payable                             3,723,922  1,465,051    (1,771,910)(b)    3,417,063
  Compensation and employee benefits             346,668                                   346,668
  Taxes other than income                        607,177     35,292                        642,469
  Other accrued liabilities                    1,109,464     43,144       (21,789)(b)    1,130,819
                                            ------------ ----------   -----------     ------------

Total current liabilities                      7,487,231  2,346,816    (3,293,699)       6,540,348

Deferred royalty income from related party     3,000,000                                 3,000,000
Note payable to related party, less
  current portion                                600,000                                   600,000
Note payable, less current portion                          690,000                        690,000
Other non-current liabilities                     64,993                                    64,993

Stockholders' equity:
  Common stock                                   157,387  2,155,568    (2,041,270)(c)      271,685
  Additional paid in capital                  31,288,188                8,458,033 (c)   39,746,221
  Accumulated earnings (deficit)             (29,613,103) 1,046,088      (872,578)(c)  (29,613,103)
                                                                         (173,510)(e)
  Treasury stock                                           (354,446)      354,446 (c)
                                            ------------ -----------  -----------     ------------
Total stockholders' equity                     1,832,472  2,847,210     5,725,121       10,404,803

                                            ------------ ----------   -----------     ------------
Total liabilities and stockholders' equity  $ 12,984,696 $5,884,026   $ 2,431,422     $ 21,300,144
                                            ============ ==========   ===========     ============
</TABLE>



   See notes to unaudited pro forma condensed combined financial statements.



<PAGE>   23
                       American Dental Technologies, Inc.
              Unaudited Pro Forma Condensed Combined Balance Sheet

<TABLE>
<CAPTION>                                                         
                                                                           March 31, 1996                     
                                                                           --------------
                                                                                         Pro Forma            Pro Forma   
                                                     ADT              Texas Air         Adjustments            Combined   
                                                  ----------------------------------------------------------------------  
 <S>                                              <C>               <C>                <C>                    <C>         
 ASSETS                                                                                                                     
 Current assets:                                                                                                            
   Cash                                           $ 1,146,490        $  404,191         $  (10,000)(e)        $ 1,540,681   
   Accounts receivable                              3,291,466         2,017,470         (1,933,284)(b)          3,375,652   
   Inventories                                      1,381,223           507,545                                 1,888,768   
   Prepaid expenses and                                                                                                     
     other current assets                             418,975           131,731            (21,154)(b)            529,552   
   Loan receivable                                                    1,500,000         (1,500,000)(b)                      
                                                  -----------        ----------         ----------            -----------   
 Total current assets                               6,238,154         4,560,937         (3,464,438)             7,334,653   
                                                                                                                            
 Prepaid foreign taxes                                300,000                                                     300,000   
 Long-term deposits                                 1,410,267                                                   1,410,267   
 Property and equipment, net                          217,953           806,629                                 1,024,582   
 Intangible assets                                  4,958,047           225,532           (160,243)(e)         10,776,948   
                                                                                         5,753,612 (c)                       
                                                  -----------        ----------         ----------            -----------   
 Total assets                                     $13,124,421        $5,593,098         $2,128,931            $20,846,450   
                                                  ===========        ==========         ==========            ===========   
                                                                                                                            
LIABILITIES AND STOCKHOLDERS' EQUITY                                                                                        
Current liabilities:                                                                                                        
  Notes payable to related parties                $ 1,700,000                         $ (1,500,000)(b)        $   200,000   
  Note payable                                                       $  801,921                                   801,921  
  Accounts payable                                  3,881,185         1,170,795         (1,933,284)(b)          3,118,696   
  Compensation and employee benefits                  335,260                                                     335,260   
  Taxes other than income                             611,127                                                     611,127   
  Other accrued liabilities                           664,363           141,420            (21,154)(b)            784,629   
                                                  -----------        ----------         ----------            -----------   
Total current liabilities                           7,191,935         2,114,136         (3,454,438)             5,851,633   
                                                                                                                            
Deferred royalty income from related party          3,000,000                                                   3,000,000   
Note payable to related party, less                                                                                         
  current portion                                     600,000                                                     600,000   
Note payable, less current portion                                      490,000                                   490,000   
Other non-current liabilities                          51,704                                                      51,704   
                                                                                                                            
Stockholders' equity:                                                                                                       
  Common stock                                        157,387         2,155,568         (2,041,270)(c)            271,685   
  Additional paid in capital                       31,288,188                            8,458,033 (c)         39,746,221   
  Accumulated earnings (deficit)                  (29,164,793)        1,187,840         (1,017,597)(c)        (29,164,793)  
                                                                                          (170,243)(e)                      
    Less treasury stock                                                (354,446)           354,446 (c)                       
                                                  -----------        ----------         ----------            -----------   
  Total stockholders' equity                        2,280,782         2,988,962          5,583,369             10,853,113   
                                                                                                                            
  Total liabilities and                                                                                                     
    stockholders' equity                          $13,124,421        $5,593,098         $2,128,931            $20,846,450   
                                                  ===========        ==========         ==========            ===========   
</TABLE>                                                        
                                                                
                                                                

   See notes to unaudited pro forma condensed combined financial statements.



<PAGE>   24
                       American Dental Technologies, Inc.
     Notes To Pro Forma Condensed Combined Financial Statements (Unaudited)

Basis Of Presentation

The unaudited pro forma condensed combined statements of operations for the
year ended December 31, 1995 and the three months ended March 31, 1996 reflect
the acquisition of Texas Air by ADT as if it had occurred on January 1, 1995
and January 1, 1996, respectively.  The unaudited pro forma condensed combined
balance sheets at December 31, 1995 and March 31, 1996 reflect the acquisition
as if it occurred on those dates.

This pro forma information does not purport to indicate the results of
operations or financial position which would have actually occurred if the
Merger had been effected on the dates indicated or which may be obtained in the
future.

Pro Forma Adjustments

The pro forma financial information reflects the acquisition of Texas Air as if
it was accounted for as a purchase, whereby all of the outstanding common stock
of Texas Air was acquired in exchange for 11,429,775 shares of ADT common stock
and Merger Warrants to purchase 6,996,919 additional shares of ADT common stock
at $1.4104 per share.  The common stock to be issued has been valued at $0.75
per share in the pro forma financial statements, its average market price for
the five days preceding and five days following signing of the Merger
Agreement.  The Merger Warrants to acquire common stock shares have no recorded
value in the pro forma financial statements, as their exercise price ($1.4104)
exceeded the average market price of ADT's common stock ($0.75) and are not
exercisable until one year and one day following the effective time.  The total
purchase price of $8,572,331 has been allocated for each of the dates presented
as follows:


<TABLE>
<CAPTION>
                                  March 31, 1996  December 31, 1995
                                  --------------  -----------------
            <S>                   <C>             <C>
            Assets acquired         $  5,422,855      $   5,710,516
            Liabilities acquired      (2,604,136)        (3,036,816)
            Goodwill                   5,753,612          5,898,631
                                    ------------      -------------
            Purchase price          $  8,572,331      $   8,572,331
                                    ============      =============
</TABLE>


The carrying value of the assets and liabilities of Texas Air approximates
their fair values and therefore have not been adjusted in the preceding pro
forma financial statements.  The preceding unaudited pro forma condensed
combined financial statements include adjustments to increase (decrease) pro
forma combined net income (loss) from continuing operations available for
common shares or increase (decrease) pro forma combined stockholders' equity,
as follows:

(a)  Elimination of intercompany net sales and cost of sales.

(b)  Elimination of intercompany balances including the accounts payable and
     accounts receivable; note payable, note receivable and related accrued
     interest; and intercompany interest income and expense.

(c)  Adjustment to record goodwill and apply purchase accounting.  Goodwill
     will be amortized on a straight-line basis over 15 years.

(d)  Amortization of the goodwill resulting from the Merger.

(e)  Adjustment to eliminate Texas Air's intangible assets and related
     amortization.  The Texas Air intangible assets include certain patent
     rights being transferred to an entity owned by the Texas Air stockholders.

(f)  Elimination of gain on sale of investment in ADT common stock held by
     Texas Air.

(g)  Royalty on sale of industrial air abrasive products.

(h)  Elimination of income tax expense due to pro forma loss or utilization of
     income tax net operating loss carryforwards.
<PAGE>   25


     (c)  Exhibits

        2.1  Restated Agreement and Plan of Reorganization and
             associated Restated Merger Agreement dated as of November 22,
             1996, among American Dental Technologies, Inc., ADT Merger Corp.
             and Texas Airsonics, Inc. (Incorporated herein by reference to
             ADT's Registration Statement No. 333-6663, Annex A to the Joint
             Proxy Statement/Prospectus).

        3.1  Certificate of Incorporation of American Dental
             Technologies, Inc. filed on November 21, 1989, with amendments,
             filed with the Delaware Secretary of State and effective on
             January 12, 1990; May 15, 1991; June 4, 1991; June 1, 1993; and
             July 29, 1996.

       10.1 Voting Agreement between William D. Myers and Ben J.
            Gallant (Incorporated herein by reference to ADT's Registration
            Statement No. 333-6663, Exhibit 9.1 to the Joint Proxy
            Statement/Prospectus).

       23.1 Consent of Independent Auditors, Ernst & Young LLP


                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
Registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.


                                    AMERICAN DENTAL TECHNOLOGIES, INC.
                                    (Registrant)



                                    Anthony D. Fiorillo
                                    President and Chief Executive Officer

Dated:  August 9, 1996



<PAGE>   26
                               INDEX TO EXHIBITS
                              to July 31, 1996 8-K




Exhibit No.

3.1  Certificate of Incorporation of American Dental Technologies, Inc.
     filed on November 21, 1989, with amendments, filed with the
     Delaware Secretary of State and effective on January 12, 1990; May
     15, 1991; June 4, 1991; June 1, 1993; and July 29, 1996

23.1 Consent of Independent Auditors, Ernst & Young LLP


<PAGE>   1
                                                                     EXHIBIT 3.1



                          CERTIFICATE OF INCORPORATION
                                       OF
                             ADL CONSOLIDATED, INC.
                     -------------------------------------

     FIRST.      The name of this corporation shall be:

                             ADL CONSOLIDATED, INC.

     SECOND.     Its registered office in the State of Delaware is to be
located at 1013 Centre Road, in the City of Wilmington, County of New Castle
19805, and its registered Agent at such address is CORPORATION SERVICE COMPANY.

     THIRD.      The purpose or purposes of the corporation shall be:

     To engage in any lawful act or activity for which corporations may be
organized under the General Corporation Law of Delaware.

     FOURTH.     The total number of shares of stock which this corporation is
authorized to issue is:  Ten Million (10,000,000) shares with a par value of
One Cent ($.01) per share, amounting to One Hundred Thousand Dollars
($100,000).


     FIFTH.      The name and address of the incorporator is as follows:

                 Mary T. Reed
                 Corporation Service Company
                 1013 Centre Road
                 Wilmington, DE 19805


     SIXTH.      The Board of Directors shall have the power to adopt, amend or
repeal the by-laws.

     SEVENTH.    No director shall be personally liable to the Corporation or
its stockholders for monetary damages for any breach of fiduciary duty by such
director as a director.  Notwithstanding the foregoing sentence, a director
shall be liable to the extent provided by applicable law, (i) for breach of the
director's duty of loyalty to the Corporation or breach of the director's duty
of loyalty to the Corporation or its stockholders, (ii) for acts or omissions
not in good faith or which involve intentional misconduct of a knowing
violation of law, (iii) pursuant to Section 174 of the Delaware General
Corporation Law, or (iv) for any transaction from which director derived an
improper personal benefit.  No amendment to or repeal of this Article Seventh
shall apply to or have any effect on the liability or alleged liability of any
director of the Corporation for or with respect to any acts or omissions of
such director occurring prior to such amendment.

     IN WITNESS WHEREOF, the undersigned, being the incorporator hereinbefore
named, has executed, signed and acknowledged this certificate of incorporation
this 21st day of November A.D. 1989.

                                              Mary T. Reed
                                              Incorporator


<PAGE>   2
                             CERTIFICATE OF MERGER
                                       OF
                       American Dental Laser Incorporated
                  American Dental Laser - International, Inc.
                      American Dental Laser - Canada, Inc.
                      American Dental Laser - Europe, Inc.
                  American Dental Laser - United States, Inc.

                                      into

                             ADL Consolidated, Inc.
                  -------------------------------------------

     The undersigned corporation, ADL Consolidated, Inc.,

     DOES HEREBY CERTIFY:

     FIRST: That the name and state of incorporation of each of the constituent
corporations of the merger is as follows:


<TABLE>
<CAPTION>
                          NAME                       STATE OF INCORPORATION
     <S>                                             <C>

     ADL Consolidated, Inc. (surviving corporation)       Delaware
     American Dental Laser Incorporated                   Michigan
     American Dental Laser - International, Inc.          Michigan
     American Dental Laser - Canada, Inc.                 Michigan
     American Dental Laser - Europe, Inc.                 Michigan
     American Dental Laser - United States, Inc.          Michigan
</TABLE>


     SECOND:    That a Plan and Agreement of Merger between the parties to the
merger has been approved, adopted, certified, executed and acknowledged by each
of the constituent corporations in accordance with the requirements of
subsection (c) of section 252 of the General Corporation Law of the State of
Delaware and Chapter 7 of the Michigan Business Corporation Act.

     THIRD:     The name of the surviving corporation of the merger is ADL
Consolidated, Inc.

     FOURTH:    The Certificate of Incorporation of ADL Consolidated, Inc., a
Delaware corporation, shall be the Certificate of Incorporation of the
surviving corporation, except that the Certificate of Incorporation of ADL
Consolidated, Inc., as the surviving corporation, shall be amended as set forth
on Exhibit A hereto pursuant to the Plan and Agreement of Merger and effective
upon consummation of the merger.

     FIFTH:     That the executed Plan and Agreement of Merger is on file at the
principal place of business of the surviving corporation.  The address of said
principal place of business is 280 North Woodward, Suite 216, Birmingham,
Michigan 48011.

     SIXTH:     That a copy of the Plan and Agreement of Merger has been
furnished without cost to all stockholders of all constituent corporations.

     SEVENTH:   The authorized capital stock of each foreign corporation which
is a party to the merger is as follows;

<TABLE>
<CAPTION>
                                                                 Par Value per
                                                                Share or state-
                                                                   ment that
                                                      Number      shares are
                Corporation                  Class   of Shares   without value
<S>                                          <C>     <C>        <C>

American Dental Laser Incorporated           Common  100,000        $1.00
American Dental Laser - International, Inc.  Common  100,000        $ .10
American Dental Laser - Canada, Inc.         Common  100,000        $ .10

</TABLE>

<PAGE>   3


<TABLE>
<S>                                          <C>     <C>        <C>
American Dental Laser - Europe, Inc.         Common  100,000        $ .10
American Dental Laser - United States, Inc.  Common  100,000        $1.00
</TABLE>


     EIGHTH:    The surviving corporation may be served with process in the
State of Delaware in any proceeding for enforcement of any obligation of
Delaware, as well from the merger, including any suit or other proceeding to
enforce the right of any stockholder as determined in appraisal proceedings
pursuant to the provisions of Section 262 of the General Corporation Law of the
State of Delaware, and it does hereby irrevocably appoint the Secretary of
State of the State of Delaware as its agent to accept service of process in any
such suit or other proceeding.  The address to which a copy of such process
shall be mailed by the Secretary of State of Delaware is c/o Corporation
Service Company, 1013 Centre Road, Wilmington, Delaware 19805 until the
surviving corporation shall have hereafter designated in writing to the said
Secretary of State a different address for such purpose.


Dated:  January 12, 1990                  ADL Consolidated, Inc.
                                          (a Delaware corporation)


                                          By:          Daniel S. Goldsmith
                                                       President

ATTEST:

BY:    Daniel S. Goldsmith
       Secretary




<PAGE>   4
                                   EXHIBIT A


                 AMENDMENTS TO THE CERTIFICATE OF INCORPORATION
                           OF ADL CONSOLIDATED, INC.
                 ----------------------------------------------

     The Certificate of Incorporation of ADL Consolidated, Inc., a Delaware
corporation, shall be amended as follows:

(a) Article One is hereby amended to read as follows:

     FIRST.    The name of this corporation shall be:

                          AMERICAN DENTAL LASER, INC.

(b) By adding a new Article Eight, with shall read as follows:

     EIGHTH.     (a) At all meeting of the stockholders of the Corporation, each
holder of record of Common Stock shall be entitled to one vote for each share
of such class of stock standing in his name on the books of the Corporation
subject to the right of the Board of Directors to determine a record date at
any particular meeting.  Cumulative voting shall not be permitted at any
election of directors.

                 (b) The affairs of this Corporation shall be conducted by a
Board of Directors.  Except as otherwise provided by this Article Eight, the
number of directors of the Corporation, shall be fixed from time to time by the
vote of a majority of the entire Board; provided, however, that the number of
directors shall not be reduced so as to shorten the term of any director at the
time in office.  Commencing with the effective date of this Amendment to the
Certificate of Incorporation, the directors of the Corporation shall be divided
into three classes; Class I, Class II and Class III, each such class, as nearly
as possible, to have the same number of directors.  The term of office of the
initial Class I directors shall expire at the annual election of directors by
the stockholders of the Corporation in 1991, the term of the office of the
initial Class II directors shall expire at the annual election of directors by
the stockholders of the Corporation in 1992, and the term of the office of the
initial Class III directors shall expire at the annual election of directors by
the stockholders of the Corporation in 1993, or in each case thereafter when
their respective successors are elected by the stockholders and qualify.  At
each annual election of directors by the stockholders of the Corporation held
after the effective date of this Amendment to the Certificate of Incorporation,
the directors chosen to succeed those whose terms are then expired shall be
identified as being of the same class as the directors they succeed and shall
be elected by the stockholders of the Corporation for a term expiring at the
third succeeding annual election of directors, or thereafter when their
respective successors in each case are elected by the stockholders and qualify.

                 (c) In case of an increase in the number of directors, the
additional directors may be elected by the Board of Directors and such
directorships thereby created shall be apportioned among the classes of
directors so as to maintain such classes as nearly equal in number as possible. 
In case of vacancies in the Board of Directors, a majority of the remaining
directors in the Class of Directors in such vacancy occurs, may elect directors
to fill such vacancy.

                 (d) Special meetings of stockholders of the Corporation may be
called only by the Board of Directors pursuant to a resolution approved by a
majority of the entire Board of Directors, upon not less than ten (10) nor more
than fifty (50) days' written notice. 

                 (e) Notwithstanding any other provisions of the Certificate of
Incorporation or the By-Laws of the Corporation (and notwithstanding that a
lesser percentage may be specified by law, this Certificate of Incorporation or
the By-Laws of the Corporation), the provisions of this Article Eight may not
be repealed or amended in any respect, nor may any provision be adopted
inconsistent with this Article Eight unless such action is approved by the
affirmative vote of the holders of eighty (80%) percent of the total shares of
stock of the Corporation then outstanding and entitled to vote thereon.

(c) By adding a new Article Nine, which shall read as follows:

<PAGE>   5


     NINTH. Where stockholder approval is required by applicable state law for
any of the following transactions, the vote required for such approval shall be
the affirmative vote of the holders of at least eighty (80%) percent of the
voting power of the outstanding shares:

                    (a) Any plan of merger;

                    (b) Any plan of exchange;

                    (c) Any sale, lease, transfer or other disposition of all
or substantially all of this Corporation's property and assets, including its
goodwill, not in the usual and regular course of its business;

                    (d) Any dissolution of this Corporation;

                    (e) Any amendment to, or repeal of, a By-Law or By-Laws
lawfully proposed by a stockholder or stockholders holding at least the
required statutory voting power; or

                    (f) Any amendment to, or repeal of, all or any portion of
this Article Nine; provided, however, that if the then current or a preexisting
Board of Directors of this Corporation shall by resolution adopted at a meeting
of the Board of Directors have approved one of the enumerated matters (other
than dissolution of this Corporation or an amendment of this Article Nine to
alter the eighty (80%) percent dissolution vote) and shall have determined to
recommend it for approval by the holders of shares entitled to vote on the
matter, then the vote required shall be the affirmative vote of the holders of
at least a majority of the voting power of the outstanding shares.



<PAGE>   6
                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                          AMERICAN DENTAL LASER, INC.

     American Dental Laser, Inc. (the "Company"), a corporation organized and
existing under and by virtue of the General Corporation Law of the State of
Delaware, DOES HEREBY CERTIFY:

     FIRST:    That at a meeting of the Board of Directors of the Company,
resolutions were duly adopted proposing and declaring advisable the following
amendment to the Certificate of Incorporation of the Company:

           RESOLVED, that Article FOURTH of the Company's Certificate of
      Incorporation, as amended and restated, be amended to read in full
      as follows:

           "FOURTH:  The aggregate number of shares which the Company
      shall have authority to issue is 35,000,000 to be divided into (a)
      25,000,000 shares of Common Stock, par value $.01 per share, and
      (b) 10,000,000 shares of Preferred Stock, par value $.01 per
      share.

      The Board of Directors is hereby empowered to cause the Preferred
      Stock to be issued from time to time for such consideration as it
      may from time to time fix, and to cause such Preferred Stock to be
      issued in series with such voting powers, designations,
      preferences and relative, participating, optional or other special
      rights, if any, or the qualifications, limitations or restrictions
      thereof, as designated by the Board of Directors in the resolution
      providing for the issue of such series.  Shares of Preferred Stock
      of any one series shall be identical in all respects."

     SECOND:     That thereafter, pursuant to resolution of the Board of
Directors, a special meeting of the stockholders of the Company was duly called
and held, upon notice in accordance with Section 222 of the General Corporation
law of the State of Delaware, at which meeting the necessary number of shares
as required by statute was voted in favor of the amendment.

     THIRD:      That the foregoing Amendment to the Certificate of
Incorporation was duly adopted in accordance with the provisions of Section 242
of the General Corporation Law of the State of Delaware.

     FOURTH:     That the capital of the Company shall not be reduced under or
by reason of said amendment.

     IN WITNESS WHEREOF, said American Dental Laser, Inc. has caused this
Certificate to be signed by Daniel S. Goldsmith, its President, and attested by
Walter J. Goldsmith, its Secretary, this 10th day of May, 1991.

                                         AMERICAN DENTAL LASER, INC.



                                         By:  Daniel S. Goldsmith
                                              President



Attest:

Walter J. Goldsmith
Secretary



<PAGE>   7
                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                          AMERICAN DENTAL LASER, INC.
- --------------------------------------------------------------------------------

     AMERICAN DENTAL LASER, INC. (the "Corporation"), a corporation organized
and existing under and by virtue of the General Corporation Law of the State of
Delaware, DOES HEREBY CERTIFY:

     FIRST:    That the Board of Directors of said Corporation, pursuant to the
provisions of Section 141 of the General Corporation Law of the State of
Delaware, adopted via unanimous consent resolution in lieu of a meeting of the
Board of Directors the following resolutions:

           RESOLVED: that the Corporation, pursuant to the provisions of
      Section 242 of the General Corporation Law of the State of
      Delaware, hereby amends Article Eighth (c) of its Certificate of
      Incorporation to read as follows:

                 "EIGHTH. (c) In case of an increase in the number
            of directors, the additional directors may be elected
            by the Board of Directors and such directorships
            thereby created shall be apportioned among the classes
            of directors so as to maintain such classes as nearly
            equal in number as possible.  In case of vacancies in
            any of the classes of directors, a majority of all the
            remaining directors in all classes may elect such
            directors to fill any such vacancies in any class."

           RESOLVED, that the proposed amendment to the Company's
      Certificate of Incorporation be submitted to a written consent of
      the stockholders entitled to vote thereon, pursuant to the
      provisions of Section 228 of the General Corporation Law of the
      State of Delaware and that such amendment is hereby declared
      advisable to the shareholders by the Board of Directors.

     SECOND:   That the aforesaid amendment to Article Eighth (c) of the
Certificate of Incorporation of the Corporation has been consented to by the
required percentage of stockholders in accordance with Section 228 of the
General Corporation Law of Delaware, and prompt written notice has been given
to those stockholders who have not consented in writing to the aforesaid
amendment, as also provided for in Section 228 of the General Corporation Law
of Delaware.

     THIRD:    That the foregoing Amendment to the Certificate of Incorporation
was duly adopted in accordance with the applicable provision of Sections 242
and 228 of the General Corporation Law of Delaware.

     IN WITNESS WHEREOF, said Corporation has caused this Certificate to be
signed by Daniel S. Goldsmith, its President, and attested by Walter J.
Goldsmith, its Secretary, this 1st day of June 1991.

                                          AMERICAN DENTAL LASER, INC.



                                          By:  Daniel S. Goldsmith
                                               President



ATTEST:

Walter J. Goldsmith
Secretary


<PAGE>   8
                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                          AMERICAN DENTAL LASER, INC.

          ------------------------------------------------------------

     AMERICAN DENTAL LASER, INC., a corporation organized and existing under
and by virtue of the General Corporation Law of the State of Delaware, DOES
HEREBY CERTIFY:

     FIRST.    That the Board of Directors of said corporation, at a meeting
duly convened and held, adopted the following resolution:

     RESOLVED that the Board of Directors hereby declares it advisable and in
the best interest of the Company that Article FIRST of the Certificate of
Incorporation be amended to read as follows:

     FIRST.    The name of this corporation shall be:

                       American Dental Technologies, Inc.

     SECOND.   That the said amendment has been consented to and authorized by
the holders of a majority of the issued and outstanding stock entitled to vote
by written consent given in accordance with the provisions of Section 228 of
the General Corporation Law of the State of Delaware.

     THIRD.    That the aforesaid amendment was duly adopted in accordance with
the applicable provisions of Sections 242 and 228 of the General Corporation
Law of the State of Delaware.

     IN WITNESS WHEREOF, SAID CORPORATION HAS caused this Certificate to be
signed by Anthony D. Fiorillo, its President and attested by Raymond F. Winter,
its Secretary, this 25th day of May A.D. 1993.

                                                  Anthony D. Fiorillo, President


                                       Attested by: Raymond F. Winter, Secretary


<PAGE>   9
                            CERTIFICATE OF AMENDMENT
                                       OF
                          CERTIFICATE OF INCORPORATION
                                       OF
                       AMERICAN DENTAL TECHNOLOGIES, INC.
   -------------------------------------------------------------------------

     AMERICAN DENTAL TECHNOLOGIES, INC., a corporation organized and existing
under and by virtue of the General Corporation Law of the State of Delaware
(the "Company"), DOES HEREBY CERTIFY:

     FIRST:   That the Board of Directors of said Company at a meeting duly
convened and held, adopted the following resolution:

     RESOLVED that the Board of Directors hereby declares it advisable and in
the best interest of the Company that Article Fourth of the certificate of
Incorporation be amended to read as follows:

     FOURTH:  The aggregate number of shares which the Company shall have
authority to issue is 60,000,000 to be divided into (a) 50,000,000 shares of
Common Stock, par value $.01 per share, and (b) 10,000,000 shares of Preferred
Stock, par value $.01 per share.

     SECOND:  That said amendment was duly authorized by the holders of a
majority of the issued and outstanding stock entitled to vote at the Company's
1996 annual stockholders' meeting, which was called and held pursuant to
written notice in accordance with the applicable provisions of Section 222 of
the General Corporation Law of the State of Delaware.

     THIRD:  That the aforementioned amendment was duly adopted in accordance
with the applicable provisions of Sections 222 and 242 of the General
Corporation Law of the State of Delaware.

     IN WITNESS WHEREOF, said corporation has caused this Certificate to be
signed by its Secretary, this 29th day of July A.D. 1996.



                                             Authorized Officer
                                             Name:  Raymond F. Winter, Secretary




<PAGE>   1
                                                                    Exhibit 23.1





                        Consent of Independent Auditors







We consent to the incorporation by reference in the registration statements
pertaining to the Amended and Restated Long-Term Incentive Plan (Form S-8 No.
33-86062 and Form S-8 No. 33-66552) and the Non-Qualified Stock Option Plan and
the Stock Option Plan for Employees (Form S-8 No. 33-52664) of American Dental
Technologies, Inc. of our report dated February 16, 1996 with respect to the
financial statements of Texas Airsonics, Inc. included in this Current Report
(Form 8-K).

August 9, 1996

                                        Ernst & Young LLP






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