*Ayaka Kimura1, Yusuke Mihara1, Yuki Murotani1, Hiromasa Hagino1, Kotaro Higashi1, Suzuna Akema1, Yoshie Okada1, Satoko Takeuchi1, Tomoaki Mameno1, Takayuki Kosaka1, Tomoya Gonda1, Masahiro Wada1, Toshihito Takahashi1, Yoshinobu Maeda1, Kazunori Ikebe1
(1. Department of Removable Prosthodontics and Gerodontology, Osaka University Graduate School of Dentistry)