Dr. Rotstein is Professor of Endodontics at the Herman Ostrow School of Dentistry of USC. He is Chair of the Division of Surgical, Therapeutic and Bioengineering Sciences and Associate Dean for Continuing Oral Health Professional Education at Ostrow School of Dentistry. He is member of the Executive Leadership Team of the Ostrow School of Dentistry and Ambassador Member of the University of Southern California. Dr. Rotstein is currently the Chairman of the Research Committee of the International Federation of Endodontic Associations (IFEA) and Scientific Reviewer for the Journal of Endodontics. He is Past-President of the Southern California Academy of Endodontics, and has served on the Research and Scientific Affairs Committee of the American Association of Endodontists. It addition, he has been serving on the editorial board of several national and international dental journals. Dr. Rotstein has published over 100 scientific articles and research abstracts in the dental literature as well as chapters in international endodontic textbooks. He has lectured extensively both nationally and internationally in 20 countries throughout 4 continents.