*Natsuki Kishimoto1, Kazuhiro Murakami1, Shogo Yoshimura1, Fumiko Uehara1, Shoko Hori1, Tasuku Yoshimoto1, EnChih Weng1, Sho Shirotori1, Ayaka Yasuno1, Kazuhiro Hori1
(1. Division of Comprehensive Prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University)