IIDA Seiji¹, IMAMURA Yoshiki² (1.Department of Oral and Maxillofacial Reconstructive Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan, 2.Department of Oral Diagnostic Sciences Nihon University School of Dentistry)

TAKADA Satoshi (Department of Oral Surgery, Ohu University School of Dentistry)

CHIBA Masatoshi (Division of Oral and Maxillofacial Surgery, Department of Oral Medicine and Surgery, Tohoku University Graduate School of Dentistry, Sendai, Japan)

MURAOKA Wataru (Department of Dentistry and Oral Surgery, Kawasaki Municipal Ida Hospital)

SHIBAHARA Takahiko (Department of Oral and Maxillofacial Surgery, Tokyo Dental College, Tokyo, Japan)