Allan S. Deutsch, DMD, FACD, is an international lecturer and prolific author of articles in major dental journals. He holds 19 patents for co-inventing revolutionary endodontic obturation, instrumentation, post and composite systems, as well as laser tips. As a founder in the largest endodontic practice in Manhattan, Dr. Deutsch's 35-plus years of clinical experience have made him into one of the top authorities in the field. He is currently an assistant clinical professor of endodontics at Columbia University in New York City. Dr. Deutsch is co-founder of the tri-state area's HODEC (Hands-On Dental Education Center)—a hands-on training center that encourages general dentists and endodontists to upgrade and sharpen their skills. He is the executive vice president, co-director of dental research, and co-founder of Essential Dental Systems (EDS), a dental products manufacturing company in South Hackensack, New Jersey. Dr. Deutsch received his DMD from Tufts University Dental School in 1973 and completed his postgraduate studies in endodontics at Columbia University Dental School in 1976. He is a member of numerous national dental organizations and is also a fellow of the American College of Dentistry.