Samuel Dorn is professor and chair of the department of endodontics, and director of the advanced specialty education program in endodontics at the University of Texas Health Science Center at Houston. Previously, he was a professor of endodontics at the University of Florida. He is also the founding director of postgraduate endodontics at Nova Southeastern University.

Dorn is a past president of the American Association of Endodontists (AAE) and the American Board of Endodontics (ABE). He currently serves as a regent of the International Federation of Endodontic Associations and is a Fellow of the American and International Colleges of Dentists. Dorn holds a BS in Biology from Queens College, a DDS from Fairleigh Dickinson University and a certificate in Endodontics from Nassau County Medical Center.