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Oral System Prosthodontics Lab
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A prosthodontics lab that explores how to restore lost teeth and jaws through the study of bite force and materials.
AboutAbout the lab
Studying prosthodontic treatment to restore lost teeth and jaws.
The Oral System Prosthodontics Lab carries out clinical work, research, and education in removable partial dentures, dental implants, maxillofacial prosthetics, and dysphagia rehabilitation.
In its research, the lab looks for ways to restore lost teeth or jaw tissue that consider not only shape but also function, the way forces are distributed, and the response of living tissue.
Working with other fields and with companies, the lab measures bite force, analyzes changes in jawbone, and develops new materials and dental devices.
The lab belongs to the Department of Rehabilitation Dentistry at the Tohoku University Graduate School of Dentistry.
Key terms
- Prosthodontic treatment
- Dental treatment that restores the shape and function of lost teeth, jaws, and other tissue by replacing them with artificial materials.
- Finite element analysis
- A method that divides an object into small elements and calculates how it deforms and how forces are distributed when a load is applied.
- Bone remodeling
- The process by which bone is continually broken down and rebuilt, so that it is constantly renewed.
- Bruxism
- A habit, such as teeth grinding or clenching, in which strong forces are applied to the teeth at times other than eating.
NewsLab news
A researcher's paper has been accepted by International Journal of Implant Dentistry
An Assistant Professor received The Second Best Presentation Award at the ITI Study Club Tohoku Section 2026 meeting
A researcher received an Excellence in Presentation Award at the all-participant presentation workshop of the Japan Clinical Implant Research Association
A paper by a recipient of a doctoral degree has been accepted by International Journal of Implant Dentistry
A paper by Associate Professor Taichi Tenkumo has been accepted by Scientific Reports
ResearchResearch themes
The lab studies ways to restore lost teeth and jawbone that consider not only shape but also function, how forces are distributed, and the relationship between treatment materials and living tissue. Through interdisciplinary and industry-academia collaboration, it works to clarify the mechanisms that can advance prosthodontic treatment and to develop new treatment techniques, materials, and medical devices.
*Illustrative imageImplant loading and the surrounding bone
Using CBCT images of patients who have completed implant treatment, the lab builds 3D models of the surrounding bone and examines how loading affects the buccal bone. In this joint study with the University of Sydney, finite element analysis is used to calculate the forces generated inside the bone, which are then compared with changes in bone volume.
*Illustrative imageBone remodeling in reconstructed mandibles
The lab uses patients' CT images and finite element analysis to study how bone heals and remodels after mandibular reconstruction, for example with a vascularized free fibula flap. This basic research, conducted jointly with the Oral and Maxillofacial Reconstruction Unit and the University of Sydney, seeks the optimal timing of loading to promote bone remodeling, and it is being extended to maxillary reconstruction.
*Illustrative imageWearable bite force measurement device
The lab aims to create a device that can measure the bite force applied to the dentition during parafunction such as bruxism in everyday settings. Together with the Institute of Science Tokyo, it is trying to develop a technology that uses a sheet-type electret sensor to measure bite contact locations and forces in real time.
*Illustrative imageMRI analysis of masticatory muscle fibers
The lab uses diffusion tensor imaging (DTI), an MRI technique, to examine the orientation of muscle fibers inside the masticatory muscles. Together with Tohoku University's Institute of Development, Aging and Cancer and Graduate School of Biomedical Engineering, it identified imaging and analysis conditions suited to the masseter muscle, and it is now applying this method to the medial and lateral pterygoid muscles deep in the body.
MembersFaculty
The members of the Oral System Prosthodontics Lab consist of faculty, clinical staff, doctoral students, residents, registered trainee clinicians, Clinical Professors, Visiting Associate Professors, part-time lecturers, researchers, and secretaries, joined by faculty of the Oral and Maxillofacial Reconstruction Unit.As of 2026
- ProfessorNobuhiro Yoda
- Associate ProfessorTaichi Tenkumo
- LecturerSei Shiraishi
- Assistant ProfessorNaoko Sato
- Assistant ProfessorDaiki Hihara
- Assistant ProfessorKenta Shobara
- Assistant ProfessorHiroshi Yamaguchi
- Clinical Assistant ProfessorMasumi Abe
- Clinical Assistant ProfessorTaito Iwabuchi
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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: “Dental implants” Tiia Monto / CC BY 4.0 (cropped)
- Implant loading and the surrounding bone: “Single crown implant” Coronation Dental Specialty Group / CC BY-SA 3.0 (cropped)
- Bone remodeling in reconstructed mandibles: “Human cranium model at Nobel Prize Museum” Kevin Payravi / CC BY-SA 4.0 (cropped)
- Wearable bite force measurement device: “Hanau articulator” Hanabishi / CC BY-SA 3.0 (cropped)
- MRI analysis of masticatory muscle fibers: “HITACHI, Magnetic Resonance Imaging System, ECHELON OVAL” Mj-bird / CC BY-SA 3.0 (cropped)
- Related lab (Biomaterials Science and Engineering Lab): “Laboratory of Biomaterials” Berillo D / CC BY-SA 4.0 (cropped)
- Related lab (Oral Microbiology and Immunology Lab): “View of scientist looking at a Surveyor III components with a microscope in a Lunar Receiving Laboratory sterile vacuum cabinet (s70-22401)” NASA / Public domain (cropped)
- Related lab (Orthodontics Lab): “Gipsabguss Gebiss” Sciencia58 / CC0 (cropped)
- Related lab (Regenerative Dental Engineering Lab): “Dental-implant-illustration” Alexmit art / CC BY-SA 4.0 (cropped)
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