1. Department of Dentistry and Oral Surgery, Shinshu University School of Medicine, Matsumoto, Japan
2. Department of Dentistry and Oral-Maxillofacial Surgery, Chiba University Hospital, Chiba, Japan
3. Oral and Maxillofacial Surgery, Wakayama Medical University, Wakayama, Japan
4. First Department of Oral and Maxillofacial Surgery, Osaka University, Graduate School of Dentistry: Unit of Dentistry, Osaka University Hospital, Suita, Japan
5. Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Tokyo Medical University, Tokyo, Japan
6. Department of Oral and Maxillofacial Surgery, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan
7. Division of Advanced Prosthetic Dentistry, Tohoku University Graduate School of Dentistry, Sendai, Japan
8. Department of Oral and Maxillofacial Surgery, Ehime University Graduate School of Medicine, Toon, Japan
9. Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
10. Division of Oral and Maxillofacial Surgery, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
11. Section of Maxillofacial Oncology, Division of Maxillofacial Diagnostic and Surgical Sciences, Faculty of Dental Science, Kyushu University, Fukuoka, Japan
12. Department of Oral Medicine, Oral and maxillofacial Surgery, Tokyo Dental College, Chiba, Japan
13. Department of Dentistry, Oral and Maxillofacial Surgery, Jichi Medical University, Tochigi, Japan
14. Department of Dental Medicine, Kyoto Prefectural University of Medicine, Graduate School of Medical Science, Kyoto, Japan
15. Department of Dentistry and Oral Surgery, Yamagata University Hospital, Yamagata, Japan
16. Department of Oral Medicine, Tokushima University Graduate School of Biomedical Sciences, Tokushima, Japan.