HATTORI Hisashi¹, SAKAGUCHI Kohei^1,2, TOYAMA Naoto^1,2, SAYO Akira^1,2, HIBI Hideharu² (1.Dept. of OMS and Dentistry, Anjo Kosei Hospital, Aichi, Japan, 2.Dept. of OMS, Nagoya Univ. Graduate School of Medicine)

KASAMA Hiroki¹, KOUZU Yukinao¹, EIZUKA Keitaro¹, UZAWA Katsuhiro² (1.Dept. of Dentistry and OMS, Kimitsu Chuo Hospital, Chiba, Japan, 2.Dept. of Dentistry and OMS, Chiba Univ. Hospital, Chiba, Japan)

SHIBANO Masayasu^1,2, MAEYAMA Eri¹, AOKI Yusuke³, FURUSE Ken¹, YAKUSHIJI Takashi^1,2, INAGAWA Motoaki¹, SHIBAHARA Takahiko² (1.OMS, National Hospital Organization, Takasaki General Medical Center, Gunma, Japan, 2.Dept. of OMS, Tokyo Dental College, Tokyo, Japan, 3.Dept. of Oral Medicine, OMS, Tokyo Dental College Chiba, Japan)

IWAI Kaori, KOHARA Keitaro, HINOSHITA Masahiro (Kizawa Memorial Hospital, Gifu, Japan)

MOCHIDA Kaori, KUROSHIMA Takeshi, HARADA Hiroyuki (Dept. of OMS, Track of Medical and Dental Sciences, Graduate School of Medical and Dental Sciences, Tokyo Medical and Dental Univ., Tokyo, Japan)

NAKAMA Joji¹, ARAKAKI Keiichi², IREI Mitsutaka², UEDA Gousei², HIGA Moritoshi², HIGA Tsutomu³, MEKARU Yasuaki³, SAWADA Shigeki⁴, TATETSU Masaharu⁴, KANOU Ta (1.Dept. of Dentistry, OMS, Okinawa Prefectural Yaeyama Hospital, 2.Dept. of Dentistry, OMS, Okinawa Prefectural Chubu Hospital, 3.Dept. of Dentistry, OMS, Okinawa Prefectural Nanbu Medical Center & Children's Medical Center, 4.Dept. of Dentistry, OMS, Okinawa Prefectural Hokubu Hospital, 5.Dept. of Dentistry, OMS, Okinawa Prefectural Miyako Hospital)