Dr. Terauchi is a part-time lecturer at Tokyo Medical & Dental University, an adjunct clinical assistant professor of Endodontics at Boston University Henry M. Goldman School of Dental Medicine, and an adjunct professor at Department of Endodontics Faculty of Dentistry Bahçeşehir University İstanbul, Turkey. He is 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 11^th and the 12^th edition of “Pathways of the Pulp”, “Endodontics: the 6^th edition of Principles and Practice”, and “Management of Fractured Instruments. Endodontic Advances and Evidence-Based Clinical Guidelines”. He has lectured nationally and internationally both onsite and online a number of times a year.

He has been invited to USA, Canada, Mexico, Brazil, Chile, Australia, China, Singapore, Malaysia, Taiwan, South Korea, Hong Kong, Thailand, India, Italy, France, Germany, Greece, Portugal, Spain, UK, Belgium, Hungary, Bulgaria, Norway, Finland, Estonia, Turk, Russia, Ukraine, South Africa, Israel, Egypt, UAE, Kuwait, Iraq, Iran.

2001: Presidential Award by JEA

2008: Wakai Award by JEA

2007: Adjunct Lecturer at Tokyo Medical & Dental University, department of Pulp biology and Endodontics.

2021: Adjunct Professor at Department of Endodontics Faculty of Dentistry Bahçeşehir University İstanbul/Turkey.

2021: Adjunct Clinical Assistant Professor of Endodontics at Boston University Henry M. Goldman School of Dental Medicine.

2023-2024: President of Japan Association of Microscopic Dentistry.

Dr. Massironi is Active Member of the European Academy of Esthetic Dentistry, Member of American Academy Restorative Dentistry, Active Member of the American Academy of Microscopy and Diplomate of the International Congress of Oral Implantologists; he’s  Member Emeritus of Amici di Brugg  and Active Member of Digital Dentistry Society. He wrote “Precision in prosthetic restoration” with A. Battistelli and R. Pascetta (Quintessence) and “Precision in dental aesthetics” with R. Pascetta and G. Romeo (Quintessence) and translated in seven languages. He uses the stereomicroscope since 1988.