KATO Hajime^1,2, IINO Mitsuyoshi² (1.Division of Neurology and Clinical Neuroscience, Dept. of Internal Medicine III, Yamagata Univ. Faculty of Medicine, Yamagata, Japan, 2.Dept. of Dentistry, Oral and Maxillofacial-Plastic and Reconstructive Surgery, Yamagata Univ. Faculty of Medicine, Yamagata, Japan)

SUZUKI Rie, KOIKE Aya, ISHIGE Shunsaku, OGAWARA Katsunori, TAKAHASHI Kikuo (Division of Oral Surgery, Japan Community Healthcare Organization Funabashi Central Hospital, Chiba, Japan)

UJIGAWA Kiyoto, SOBUE Wataru, KIYOKAWA Marie, MOTOHASHI Ken, SAKOH Makoto, OZAWA Yasuhiro (Dept. of Dentistry and Oral Surgery, St. Luke's International Hospital, Tokyo, Japan)

NAGAO Yumiko (Dept. of Public Health, Graduate School of Medicine, Juntendo Univ., Tokyo, Japan)

KAGAWA Chie¹, KAIBUCHI Nobuyuki¹, SHIMASAKI Akira^1,3, OKAMOTO Toshihiro^1,2,4, SANGU Noriko¹, AKAGI Yuichi¹, ANDO Tomohiro¹ (1.Dept. of OMS, School of Medicine, Tokyo Women's Medical Univ, Tokyo, Japan, 2.Dept. of Dentistry and Oral Surgery, School of Medicine, Tokyo Women's Medical Univ.,Yachiyo Medical Center, Tokyo, Japan, 3.TMG Asaka Medical Center, Tokyo, Japan, 4.Yotsuyaushigome Dental Association, Tokyo, Japan)