Investors

American Dental Partners completed its initial public offering on April 16, 1998 and is traded on the NASDAQ National Market under the ticker "ADPI."

"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 Company's risks associated with its ability to refinance its credit facilities on satisfactory terms, overall or regional economic conditions, dependence upon affiliated dental practices, contracts its affiliated practices have with third-party payors, dependence upon service agreements and government regulation of the dental industry, the impact of any terminations or potential terminations of such contracts and the Company's acquisition and affiliation strategy, 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, 2008.