Dr. Noriaki Yoshida is at present Professor and Chair of Department of Orthodontics and Dentofacial Orthopedics, Nagasaki University Graduate School of Biomedical Sciences. His research interest is in biomechanical analysis of orthodontic tooth movement. He graduated from Nagasaki University, Nagasaki, Japan in 1986 and received Ph.D. degree from Niigata University, Japan in 1995. Since 1990 he has been a faculty in the Department of Orthodontics, School of Dentistry, Nagasaki University. He was a research fellow at the Department of Orthodontics and Dentofacial Orthopedics, Free University of Berlin and Humboldt University, Germany from 1992 to 1994, and Visiting Professor, Orthodontics, Division of Craniofacial Sciences and Therapeutics, University of Southern California, USA in 2005. Prof. Yoshida has given many lectures and courses in different countries and is the author of more than 150 scientific papers.

Title of Talk

Biomechanical principles and strategies for achieving controlled tooth movement and high treatment efficiency using TADs


This presentation will deal with biomechanical considerations for maximizing therapeutic efficiency and minimizing side effects during orthodontic treatment combined with temporary anchorage devices and the treatment strategies for achieving speedy and controllable tooth movement will be discussed. For years, orthodontists have been searching for the treatment mechanics which allow speedy and predictable space closure in extraction cases. The relocation of anterior teeth to their final target destinations along the shortest paths possible results in more efficient tooth movement and reduction of treatment time. The prediction and planning of orthodontic tooth movement is quite critical for maximizing therapeutic efficiency. We developed a simulation system of long-term orthodontic tooth movement after going through bone remodeling process. Using this system, the optimal loading condition for achieving speedy and controllable anterior teeth movements during orthodontic treatment will be determined. Also, the treatment mechanics we developed for achieving the optimal treatment outcome will be introduced.