Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine;
Kanto-Koshinetsu Branch (Clinical Implant Society of Japan);
Department of Geriatric Dentistry, Showa University School of Dentistry;
Department of Removable Prosthodontics, Tsurumi University School of Dental Medicine;
Tohoku-Hokkaido Branch (Aomori Implant Research Group);
Kanto-Koshinetu Branch (Japan Institute for Advanced Dentistry);
Kanto-Koshinetu Branch (Japan Institute for Advanced Dentistry);
Chugoku-Shikoku Branch (Clinical Implant Society of Japan);
Department of Oral Reconstruction and Rehabilitation, Kyushu Dental University;
Touhoku-Hokkaido Branch (Institute for Hokkaido Plastic Dentistry);
Section of Implant Dentistry, Department of Gerodondology, School of Dentistry, Aichi Gakuin University;
Kyushu Branch;
Department of Prosthodontics and Oral Rehabilitation, Osaka University Graduate School of Dentistry;
Department of Crown and Bridge Prosthodontics, The Nippon Dental University School of Life Dentistry at Niigata;
dental implant; dental visit; elderly people needing long-term care;