1. Department of Periodontology and Research Institute of Oral Science, Nihon University School of Dentistry at Matsudo
2. Department of Periodontology, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental University
3. Private Practice
4. Division of Periodontology, Department of Oral Interdisciplinary Medicine, Graduate School of Dentistry, Kanagawa Dental University
5. Department of Dental Hygiene, Aichi Gakuin Junior College
6. Department of Preventive Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
7. Oral care perio center, Southern Tohoku Research Institute for Neuroscience Southern Tohoku General Hospital
8. Department of Periodontology, Osaka University Graduate School of Dentistry
9. Department of Periodontology, Showa University School of Dentistry
10. Department of Operative Dentistry, Endodontology and Periodontology, School of Dentistry, Matsumoto Dental University
11. Department of Periodontology and Endodontology, Graduate School of Biomedical Sciences, Nagasaki University
12. Department of Periodontology, The Nippon Dental University School of Life Dentistry at Niigata
13. Section of Periodontology, Department of Odontology, Fukuoka Dental College
14. Department of Periodontology, School of Life Dentistry at Tokyo, The Nippon Dental University
15. Department of Preventive and Public Health Dentistry, Fukuoka Dental College
16. Department of Surgery, Southern Tohoku General Hospital
17. Institute for Oral and Maxillofacial Surgery, Shin-yurigaoka General Hospital
18. Faculty of Dentistry, Oral & Craniofacial Sciences, King’s College London, WHO Collaborating Centre for Oral Cancer
19. Department of Maxillofacial Surgery, School of Dentistry, Aichi-Gakuin University