*Pangastuti Merina1、Hendrijantini Nike2、Kuntjoro Mefina2、Agustono Bambang2、Atikasari Nurani1
(1. Universitas Airlangga, Faculty of Dental Medicine, Residency Program in Department of Prosthodontic, Surabaya, Indonesia、2. Universitas Airlangga, Faculty of Dental Medicine, Department of Prosthodontic, Surabaya, Indonesia)