top of page


About the inventor

Dr. Otsuka Atsushi

Dr. Otsuka Atsushi, inventor of Preortho

Tokyo Dental College

DDS, MD, Orthodontist

Otsuka Orthodontic Clinic

Inventor of PreOrtho

PreOrtho Chief Clinical Consultant

Dr. Otsuka Atsushi is 30 years experienced orthodontist, his sole purpose for this invention(PreOrtho)has led to numerous studied clinical cases for more than 10 years, in order to provide for patients to have maximum results without any severe pain. And Dr. Otsuka's textbook of PreOrtho(Quintessence) was the best selling textbook of 2017 in Japan. 

Preortho textbook written by Dr. Otsuka Atsushi
bottom of page