WAKEFIELD, MA--(MARKET WIRE)--Apr 22, 2008 -- American Dental Partners, Inc. (NasdaqGS:ADPI - News) will conduct a conference call to review first quarter 2008 financial results on Tuesday, April 29, 2008 at 10:00 a.m. EDT which will also be broadcast live over the Internet at www.amdpi.com.

Gregory A. Serrao, Chairman, President and Chief Executive Officer, will host the conference call. In addition to historic results, the teleconference may include discussion of the management's expectations of future operating and financial results. To access the webcast, participants should visit the Investor Relations section of the website at least fifteen minutes prior to the start of the conference call to download and install any necessary audio software. A replay of the webcast will be available at www.amdpi.com and www.streetevents.com approximately two hours after the call through 6:00 p.m. EDT Tuesday, May 6, 2008.

American Dental Partners is one of the nation's leading business partners to dental group practices. The Company is affiliated with 27 dental groups which have 242 dental facilities with approximately 2,104 operatories located in 18 states.

"Safe Harbor" Statement under the Private Securities Litigation Reform Act of 1995: With the exception of the historical information contained in this news release, the matters described herein contain "forward-looking" statements that involve risk and uncertainties that may individually or collectively impact the matters herein described, including but not limited to the possibility that we may not realize the benefits expected from our acquisition and affiliation strategy, economic, regulatory and/or other factors outside the control of the Company, which are detailed from time to time in the "Risk Factors" section of the Company's SEC reports, including the annual report on Form 10-K for the year ended December 31, 2007.

     Contacts:
     Gregory A. Serrao
     Chairman, President and Chief Executive Officer
     781-224-0880
      
     Breht T. Feigh
     Vice President, Chief Financial Officer and Treasurer
     781-224-0880
      
     American Dental Partners, Inc.
     401 Edgewater Drive, Suite 430
     Wakefield, MA 01880
     Phone 781/224-0880
     Fax 781/224-4216