1. Division of Aging and Geriatric Dentistry, Tohoku University Graduate School of Dentistry
2. Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry
3. Division of Oral Dysfunction Science, Tohoku University Graduate School of Dentistry
4. Environmental Health Sciences Division, National Institute for Environmental Studies
5. Division of Periodontology and Endodontology, Tohoku University Graduate School of Dentistry
6. Division of Oral Immunology, Tohoku University Graduate School of Dentistry