*Ichizo Morita1, Shigemitsu Sakuma2, Kanae Kondo1, Hiroshi Murakami2, Kazuyoshi Hashimoto 2, Hajime Ozeki2, Masayoshi Nakagawa 2, Kyoko Takafuji2, Yoshihiro Yamaguchi2, Shinya Takagi2, Hisatomo Kondo2
(1. Japanese Red Cross Toyota College of Nursing, 2. Department of Fixed Prosthodontics and Oral Implantology, School of Dentistry, Aichi Gakuin University)