There Is A Difference ! Thornton A. D'Arc, D.D.S., A Professional Corporation 100 Laguna Road, Suite 200 Fullerton CA 92835 (714) 879-5960 Dedicated to serving the community in the finest U.S.C. dental tradition. Tired of wondering about the qualifications and credentials of the people treating you Ever wonder about the skill of persons treating you Hate waiting to get an appointment and then ...