On June 11, 2008, American Dental Partners, Inc. (the "Company") and its subsidiary guarantors entered into Amendment No. 6 to Amended and Restated Credit Agreement (the "Amended Credit Agreement") with the lending institutions (the "Lenders") party to the credit agreement dated February 22, 2005, as amended (the "Credit Agreement") and KeyBank National Association, as lender and as administrative agent. Capitalized terms used herein and not otherwise defined shall have the meaning attributed to them in the Credit Agreement.

On June 11, 2008, the Company and its subsidiary guarantors entered into Amendment No. 2 to Term Loan Agreement (the "Amended Term Loan Agreement") with the lending institutions party to the term loan agreement dated September 25, 2007 (the "Term Loan Agreement") and KBCM Bridge LLC, as lender and as administrative agent.

The Amended Credit Agreement and Amended Term Loan Agreement extend the maturity of the facilities from June 30, 2009 to July 20, 2009.

Copies of each of the Amended Credit Agreement and Amended Term Loan Agreement are filed herewith as Exhibits 10.1 and 10.2 and are incorporated herein by reference.

(c) Exhibits

10.1   Amendment No. 6 to Amended and Restated Credit Agreement among American
       Dental Partners, Inc., its subsidiary guarantors and the lending
       institutions party to the credit agreement dated February 22, 2005, as
       amended and KeyBank National Association, as lender and as administrative
       agent, dated June 11, 2008.

10.2   Amendment No. 2 to Term Loan Agreement among American Dental Partners,
       Inc., its subsidiary guarantors, the lending institutions party to the Term
       Loan Agreement and KBCM Bridge LLC, as lender and as administrative agent,
       dated June 11, 2008.