ISHIKAWA Mika¹, IWASE Hirotate^1,2, KATO Hiroshi¹, SASAKI Tadaaki¹ (1.Dept. of OMS, Utsunomiya Memorial Hospital, Utsunomiya, Japan, 2.Iwase Dental, Oral Surgery and Otolaryngology Clinic, Nikko, Japan)

SAKATA Shinichirou¹, TERASAKI Shinichirou¹, KUBOTA Kimiko¹, TSUKAMOTO Hideyuki¹, KUSUKAWA Jingo² (1.Social Insurance of Tagawa Hospital, 2.Tagawa City, 3.Kurume City)

KIMIZUKA Satoshi¹, KUMAMOTO Hiroyuki², ITO Masatake¹ (1.South Miyagi Medical Center, Dental and Oral Surgery, Miyagi, Japan, 2.Devision of Oral Pathology, Dept. of Oral Medicine and Surgery, Tohoku Univ. Graduate School of Dentistry)

KANO Keita^1,2, MURAYAMA Takafumi¹, NAKAI Michiaki¹, YAMAMOTO Toshiro², KANAMURA Narisato² (1.Dept. of Dentistry and Oral Surgery, Uji Takeda Hospital, Kyoto, Japan, 2.Dept. of Dental Medicine, Kyoto Prefectural Univ. of Medicine Graduate School of Medical Science, Kyoto, Japan)

TADA Misato¹, ONO Shigehiro¹, OHTA Kouji², OKUDA Satoshi¹, OGAWA Ikuko³, SAKAMOTO Shinichi³, KAKIMOTO Naoya⁴, KONISHI Masaru⁵, TAKECHI Masaaki¹ (1.Dept. of OMS, Graduate School of Biomedical and Health Sciences, Hiroshima Univ., Hiroshima, Japan, 2.Dept. of Public Oral Health, Graduate School of Biomedical and Health Sciences, Hiroshima Univ., Hiroshima, Japan, 3.Center for Oral Clinical Examination, Hiroshima Univ. Hospital, Hiroshima, Japan, 4.Dept. of Oral and Maxillofacial Radiology, Graduate School of Biomedical and Health Sciences, Hiroshima Univ., Hiroshima, Japan, 5.Dept. of Oral and Maxillofacial Radiology, Hiroshima Univ. Hospital, Hiroshima, Japan)

FUKUI Akiko¹, ONO Shigehiro¹, OHTA Kouji², TADA Misato¹, OGAWA Ikuko³, TAKECHI Masaaki¹ (1.Dept. of OMS, Graduate School of Biomedical and Health Sciences, Hiroshima Univ., 2.Dept. of Oral Public Health, Graduate School of Biomedical and Health Sciences, Hiroshima Univ., 3.Center of Oral Clinical Examination, Hiroshima Univ. Hospital)