EXHIBIT (10kk)



EXHIBIT A-1



WISCONSIN DENTAL GROUP

FINANCIAL
TERMS



1. Service Fee [§7.3(a)]. The quarterly
Service Fee for each calendar quarter in calendar year 2004 shall be the lesser of (a) the Actual Margin for such calendar quarter, or (b) the amount set forth below for such calendar quarter:



|           |  |            |  |            |  |            |  |           
|---------- |  | ---------- |  | ---------- |  | ---------- |  | ----------
|Qtr. 1     |  | Qtr. 2     |  | Qtr. 3     |  | Qtr. 4     |  | Full Year 
|$1,317,438 |  | $1,417,026 |  | $1,585,305 |  | $1,591,839 |  | $5,911,608



The Service Fee for
each subsequent calendar quarter shall be an amount equal to the lesser of (i) the Actual Margin for such calendar quarter, or (ii) the aggregate amount of the Service Fee and the Performance Fee paid or payable with respect to the corresponding
calendar quarter in the immediately preceding calendar year (after giving effect to any adjustments under §7.4 of this Agreement). Notwithstanding the other provisions of this Agreement, for purposes of applying the immediately preceding
sentence only: (A) the Performance Fee and the related adjustment, if any, under §7.4 shall be calculated each calendar quarter (substituting calendar quarter for all references to calendar year in §7.3(b) and
§7.4 for that purpose), and (B) the Performance Fee so calculated for any calendar quarter shall be deemed to be the Performance Fee payable for that calendar quarter under the immediately preceding sentence.



2. Performance Fee Adjustment Percentage. For purposes of the monthly
calculation and accrual of the Performance Fee Adjustment under Section 7.4 of the Service Agreement, Provider acknowledges and agrees that this amendment is being entered into for calendar year 2004 and that the Adjustment Percentage for such
calendar year is 25%.



3. Adjustments. Any or all of the
percentages or amounts contained in this exhibit may hereafter be changed from time to time by written agreement of the Parties. Such agreement may be in the form of a new Exhibit A-1 to this agreement, which, if signed by both Parties, shall
supersede this exhibit for all purposes thereafter.



The
effective date of this Exhibit A-1 is January 1, 2004.



|                       |  |                                   |  |      |  |                                   
|---------------------- |  | --------------------------------- |  | ---- |  | ----------------------------------
|WISCONSIN DENTAL GROUP |  | NORTHPARK DENTAL GROUP, LLC*     
|                       |  |                                   | 
|By                     |  | /s/    ROBERT W.
TRETTIN          |  | By   |  | /s/    MICHAEL J.
VAUGHAN         
|                       |  | Robert Trettin, D.D.S., President |  |      |  | Michael J. Vaughan, Vice President
|                       |  |                                   | 
|Date                   |  | 3/18/04                           |  | Date |  | 3/22/04                           

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|* | Successor in interest to American Dental Partners of Wisconsin, LLC (successor in interest to American Dental Partners of Wisconsin, Inc.)
|- | ------------------------------------------------------------------------------------------------------------------------------------------