*Min Thu Ya1, Yoko Hasegawa1,2, Ma. Therese Sta. Maria 1,3, Kana Tokumoto2, Kazuhiro Hori1
(1. Division of Comprehensive Prosthodontics, Faculty of Dentistry & Graduate School of Medical and Dental Sciences, Niigata University, 2. Department of Oral and Maxillofacial Surgery, School of Medicine, Hyogo Medical University, Nishinomiya, Hyogo, Japan, 3. Department of Prosthodontics, College of Dentistry, Manila Central University, Caloocan, Philippines)