[1] Hamamatsu City Rehabil Hosp, Dept Dent, Shizuoka, Japan
[2] Japanese Soc Gerodontol, Hosp Dent Comm, Tokyo, Japan
[3] Seirei Fukuroi Municipal Hosp, Dept Rehabil, Shizuoka, Japan
[4] Hamamatsu City Rehabil Hosp, Dept Rehabil Med, Shizuoka, Japan
[5] Haradoi Hosp, Dept Dent, Fukuoka, Japan
[6] Seirei Mikatahara Gen Hosp, Dept Dent, Shizuoka, Japan
[7] Fujita Hlth Univ, Nanakuri Mem Hosp, Dept Dent, Tsu, Mie, Japan
[8] Wakakusa Tatsuma Rehabil Hosp, Dept Dent, Osaka, Japan
[9] Ryohoku Hosp, Dept Dent, Tokyo, Japan
[10] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Dept Oral Hlth Sci Community Welf, Tokyo, Japan
[11] Musashimurayama Hosp, Dept Dent, Tokyo, Japan
[12] Ashikaga Red Cross Hosp, Dept Rehabil Med, Ashikaga, Tochigi, Japan
[13] Tokyo Med & Dent Univ, Grad Sch Med & Dent Sci, Gerodontol & Oral Rehabil, Tokyo, Japan