Dr. Terauchi is an adjunct professor at Department of Endodontics Faculty of Dentistry Bahçeşehir University İstanbul, Turkey, an adjunct clinical assistant professor of Endodontics at Boston University Henry M. Goldman School of Dental Medicine, and a part-time lecturer at Tokyo Medical & Dental University while maintaining a private practice limited to endodontics in Tokyo, Japan since 1998. He earned his DDS in 1993 and completed his residency at Tokyo Medical & Dental University in 1995, where he also received his PhD from the Department of Endodontics. He has published several articles in peer-reviewed journals nationally and internationally. He also authored in several chapters in textbooks including the 11th and the 12th edition of “Pathways of the Pulp”, “Endodontics: the 6th edition of Principles and Practice”, and “Retreatments Solution for Periapical Disease of Endodontic Origin”. He has lectured nationally and internationally both onsite and online a number of times a year.