*Atsuhiro Itsukaichi1, Shinichi Sasaki1, Tetsuo Yamamori1,2, Toshikazu Ikeda2, Chihaya Matsumoto2, Rika Uchiyama2, Koki Iijima2, Kaede Hashihara1, Ibuki Shimada1, Takahashi Taiga1, Takahito Sekine3, Jyun Itou2, Takatsu Masaki1,2
(1. Department of Oral Rehabilitation, Ohu University Graduate School of Dentistry, 2. Department of Prosthetic Dentistry, Ohu University School of Dentistry, 3. Tohoku-Hokkaido Branch)