*SHOHEI TSUKADA1, SHOKO MIURA1, TAKAFUMI FUJITA1, KONATSU MURAKAMI1, YOSHIKI IMAMURA1, KAZUYA ASAMI1, TAKURO MAEDA1, SHIHO KOYAMA1, MASANORI FUJISAWA1
(1. Division of Fixed Prosthodontics, Depertment of Restorative & Biomaterials Science, Meikai university School of Dentistry)