EXHIBIT 99.1 DIRECTOR DESIGNEE CONSENT ------------------------- I, Arthur G. Kaiser, D.D.S., hereby consent to being named as a director designee in Gentle Dental Service Corporation's Form SB-2 Registration Statement, and any amendment or amendments thereto, including any references in the Prospectus which is a part thereof. Executed this 5th day of January, 1998. /s/ ARTHUR G. KAISER, D.D.S. ----------------------------- Arthur G. Kaiser, D.D.S.