*Masana Maeda1, Taihiko Yamaguchi2, Masanori Baba2, Miku Saito2, Akihito Gotouda3, Saki Mikami3, Tomoya Ishimaru1 (1. Department of Crown and Bridge Prosthodontics, Hokkaido University Hospital, 2. Department of Crown and Bridge Prosthodontics, Faculty of Dental Medicine, Hokkaido University, 3. Department of Temporomandibular Disorders, Center for Advanced Oral Medicine, Hokkaido University Hospital)