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Orthodontics Lab
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An orthodontics lab that investigates abnormalities in the form and function of the jaws and mouth through both clinical and basic research.
AboutAbout the lab
Exploring tooth and jaw movement through clinical and basic research.
The lab studies how to diagnose and treat abnormalities in the form and function of the jaws and mouth that change with growth and aging.
It also aims to clarify the mechanisms of tooth movement and maxillofacial growth, and pursues both clinical research on human subjects and basic biological research.
The lab has also worked on developing orthodontic techniques that use orthodontic anchor screws.
Key terms
- Orthodontic anchor screw
- A small screw used in orthodontic treatment as a support (anchorage) on the side that is not meant to move, so that the teeth being moved can be pulled against it
- Edgewise treatment
- A standard orthodontic method in which devices called brackets are attached to the teeth and the force of a wire is used to align them
- Mechanical stress
- Stimulation that cells and tissues receive when force is applied to them. When orthodontic force acts on a tooth, the surrounding bone and tissue respond, and the tooth moves
NewsLab news
A student received the Tohoku University Prof. Fujino Memorial Encouragement Award
Assistant Professor Kento Numazaki received the Academic Encouragement Award at the annual meeting of the Japanese Orthodontic Society
ResearchResearch themes
The lab studies the diagnosis and treatment of abnormal form and function of the jaws and mouth, which change with human growth and aging. Through both clinical and basic research, it aims to develop new diagnostic methods and treatments that explore underlying causes, and to clarify the mechanisms of tooth movement and maxillofacial growth.
*Illustrative imageClinical research on human subjects
The lab conducts clinical research on human subjects in the following areas: orthodontic anchor screws, analysis of stomatognathic function, functional orthodontics, sleep apnea syndrome, and facial esthetics and brain function.
*Illustrative imageBasic research on tooth movement and regeneration
The lab analyzes the mechanisms of tooth movement and mechanical stress response, and develops new techniques for tooth regeneration research. By combining the development of orthodontic techniques with the results of basic research, it aims to advance the foundations of orthodontics.
*Illustrative imageTreatment using anchor screws
The lab has developed and refined techniques that use orthodontic anchor screws as anchorage in edgewise treatment and to control jaw growth. It also actively performs edgewise treatment from the inner (lingual) side of the dental arch.
MembersFaculty
The members of the Orthodontics Lab include faculty, clinical staff dentists, graduate students, and registered trainee clinicians, part-time lecturers, and clinical lecturers.As of 2025
- ProfessorHiroyasu Kanetaka
- Associate ProfessorHideki Kitaura
- LecturerHiroyuki Sugasaki
- Assistant ProfessorMichiko Yoshida
- Assistant ProfessorArata Ito
- Assistant ProfessorErika Shimada
- Assistant ProfessorFumitoshi Ohori
- Assistant ProfessorAseel Marahleh
- Assistant ProfessorMa Jinghan
- Assistant ProfessorKento Numazaki
- Assistant ProfessorShohei Shigemi
VoicesStudent voices
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “Gipsabguss Gebiss” Sciencia58 / CC0 (cropped)
- Clinical research on human subjects: “Cephalometric tracing” Challiyan / CC BY-SA 4.0 (cropped)
- Basic research on tooth movement and regeneration: “Cell Culture in a tiny Petri dish (cropped)” kaibara87 / CC BY 2.0 (cropped)
- Treatment using anchor screws: “Orthodontic face-mask or reverse pull headgear” Orthodontist101 / CC BY-SA 3.0 (cropped)
- Related lab (頭蓋顔面先天異常学分野): “In a dental clinic, New Orleans, 2 April 2026 - 3” Infrogmation / CC BY-SA 4.0 (cropped)
- Related lab (顎顔面口腔再建外科学分野): “Implant overdenture model” Coronation Dental Specialty Group[1] / CC BY-SA 3.0 (cropped)
- Related lab (口腔システム補綴学分野): “Dental implants” Tiia Monto / CC BY 4.0 (cropped)
- Related lab (分子・再生歯科補綴学分野): “Disc with dental implants made with WorkNC” Sescoi CAD/CAM / CC BY-SA 2.0 (cropped)
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