Tokyo Medical and Dental University

Orthodontic Science, Division of Oral Health Sciences,
Graduate School, Tokyo Medical and Dental University.

(former) First Department of Orthodontics, Faculty of Dentistry, Tokyo Medical and Dental University


This page is presented with a view to introducing the outline of our educational policy inclusive of reformed medical treatment.
(1) Biomechanical studies on occlusion.
In order to establish, a method to objectively evaluate malocclusion or to clarify the biological and scientific basis of the normal occlusion, virtual biomechanical simulations based on mathematical models have been performed. As a result, an index for evaluating occlusal conditions using occlusal energy levels has been established (J. Oral Rehabilitation 26). Moreover, by the method of fluid dynamics, the viscosity and flow of bolus under various occlusal conditions have also been investigated (J. Oral Rehabilitation 27, in press).
Based on these findings, as a new theme, the simulation of movement patterns of head and neck during occlusal function are currently under research.
(2) Studies on biological response and functional adaptation to orthodontic forces.
To elucidate the mechanism of biological response and functional adaptation to orthodontic forces, histochemical, molecular biological and electro-physiological studies have been performed. The results have pointed out local factors of root resorption induced by tooth movement (Arch. Oral Biol. 44), intracellular response of cultured bone cells under mechanical stress (Orthod. Waves 58) and response properties of periodontal mechanoreceptors (Euro. J Orthod. 21).
(3) Studies on changes with aging concerning dento-maxillo-craniofacial morphology and function.
We have focused on the changes of morphology and function of periodontal tissues during growth, development, and aging periods. Recently, it has been revealed that aging affects the morphology and distribution of oxytalan fibers in periodontal ligaments (J. Med. Dent. Sci. 46). In hypofunctional periodontal ligaments, we have investigated the changes of microvasculature (Orthodontic Waves 57, 60), proteoglycan contents (J. Periodont. Res. 36), mechanoreceptors (Arch. Histol. Cytol., 63), and jaw muscle spindles (Arch. Oral Biol. in press) under hypofunctional condition. Furthermore, periodontal tissue remodeling under hypofunctional and recovery periods has been examined (IADR 2001).
(4) Studies on interrelation between cranio-maxillofacial complex and whole body.
In order to realize the relationships between the development and maintenance of form and function of cranio-maxillofacial complex and those of the whole body, we put emphases on dealing with the change of the body sway, the displacement of the center of gravity of mandible and the stability for ortho-surgical patients before and after treatments.
In addition, we are also engaged in head and neck analyses with jaw movements.
(5) Studies on dental materials for clinically orthodontic use.
We have been studying the improvement of super-elastic Ti-Ni alloy wire, its biological and biomechanical background, and its clinical application.
Also, we are promoting the examination sensitive to damping capacity (57th Annual Meeting of Japanese Orthodontic Society), the improvement of orthodontic springs (The Journal of the Japanese Society for Dental Materials and Devices, Vol.19, No.2), and the development of new method for joining Ti-Ni with other alloys (58th Annual Meeting of Japanese Orthodontic Society).
In addition, we have been engaged in the improvement of etching materials for orthodontic adhesives in recent years (Dental Materials, Vol.16).
Program for graduate students
1. To master basic orthodontic concepts required in research and clinical work.
2. To nurture voluntarily in search of problem.
3. 3. To actively search new information.
Educational contents
1. Lectures
Our objective is to discuss or debate under a certain theme and to realize what is problematic, through mutual brainstorming.
1) Lecture for undergraduate students.
2) Diagnosis, Etiology, Morphologic and Functional Inspection, Analysis, Treatment planning.
3) Treatment (problem based leaning), Decision of treatment plan, Concept of orthodontic anchorage, Orthodontic appliances, Retention, Periodontal tissues, etc...
4) Scheduled topics, Maxillofacial anatomy, Growth and development of occlusion, Orthodontic materials (metal, high polymer), Oral function and clinical inspection, Orthodontic forces, Biological response including periodontal tissues, Procedure for CLP and FD treatments covered by health insurance, Art anatomy, Introduction of congenital and metabolic diseases, Presentations drills for writing and reading papers.
5) Research plan, Consideration of research planning, Seminar (make presentation are scheduled from first year autumn).

2. Practice
1) Diagnosis preparation
Practice of diagnosis preparations, tracing and analysis of cephalograms, fabrication of gnathostatic models, facial & oral photos taking

2) Basic practice
Wire bending (including Ti-Ni alloy wires), soldering, banding, mutual practice in bonding brackets, fabrication of orthodontic appliances
3) Typodont course
Class I crowding extraction case (standard edgewise)
Class II div.1 extraction case (Roth type preadjusted brackets & Ti-Ni wires)
Class III nonextraction case (Roth type preadjusted brackets & Ti-Ni wires, based on the MEAW concept)
Professor
Kunimichi SOMA

Associate Professor
Masataka HISANO

 
Lecturer
Yoshiro MATSUMOTO
Eiji FUKUYAMA

Research Assistant
Zuisei KANNO
Sawa KANEKO
Mariko HORIUCHI
Tadachika YABUSHITA
Jun HOSOMICHI

Medical Stuff
Yousuke HORIUCHI
Kazuo SHIMAZAKI
Ikuo YONEMITSU
Akira KOKAI
Ippei WATARI
Takashi MOMOSAWA
Yoshio SAITO

Graduate Student
Kim YOONJI
Noriaki ONO
Makoto SAKURAI
Kayoko YASUNAGA
Kouichi FUJITA
Saiko YAGI
Yusuke SUZAKI
Barros Isis de OLIVEIRA
Supatchai BOONPRATHAM
Kishimoto Giovanna Tomoe FABIOLA
Liu CHANG
Yuji ISHIDA
Maki TAKEI
Miho KAGECHIKA
Saewadee Termsuknirandorn
Hu Fang-Wei
Takayoshi ISHIDA
Hiroko OHMORI
Naoki SHIBUTANI
Chidsanu CHANSIRIPUN
Tanapan WONGCHINDARAK
Jung Hang Sul
Rina KATAYAMA
Mai SHIBATA


Non-degree postgraduate students

Yasuhiro EBIHARA
Yasuhide SHIMOMOTO
Hirotsugu WADA
Noriko SHIGENOBU
Emi OIE
Aya ARASAWA
Daisuke TOMITA
Satosi KURUSU
Eriko DOI
Sho HASAGAWA
Erika Hattori
Li Jiang Ning

Shusaku OZAKI

Makoto OHE
Satoshi YAMAGUCHI
Naoko MATSUMOTO
Kiyomi SAKAMOTO
Jinichiro SHIMADA
Yusuke TAKATSU
Toshihiko SAITO

Part-time Lecturer
Takemasa OZAKI

Toshihiko FUKAWA
Kunihiko OTSUBO
Takeshi KITAGAWARA
Takeshi MURAMOTO
Yuzo TAKAHASHI
Nozomu MATSUBARA
Chooryung J.Chung
Zuisei KANNO
Yoshio SHIMA

Address : 1-5-45 Yushima, Bunkyo-ku, Tokyo 113-8549, Japan
Telephone Number : +81-3-5803-5531
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