[1] Tohoku Univ, Grad Sch Dent, Dept Dis Management Dent, Div Oral & Maxillofacial Oncol & Surg Sci, 4-1 Seiryo Machi,Aoba Ku, Sendai, Miyagi 9808575, Japan
[2] NTT Docomo Inc, X Tech Dev Dept, Tokyo, Japan
[3] Tohoku Univ, Grad Sch Dent, Div Dent Informat & Radiol, Sendai, Japan
[4] Tohoku Univ, Grad Sch Dent, Dept Int & Community Oral Hlth, Sendai, Japan
[5] Tohoku Univ, Grad Sch Dent, Div Dent & Digital Forens, Sendai, Japan
[6] Sendai City Hosp, Dept Oral & Maxillofacial Surg, Sendai, Japan
[7] Tohoku Univ, Dept Dis Management Dent, Div Oral & Maxillofacial Reconstruct Surg, Grad Sch Dent, Sendai, Japan
[8] Tohoku Med & Pharmaceut Univ Hosp, Dept Oral & Maxillofacial Surg, Sendai, Japan