1. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Korea.
2. Korea Tooth Bank, Seoul, Korea.
3. Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University, Cheonan, Korea.
4. Department of Oral and Maxillofacial Surgery, Health Sciences University of Hokkaido, Sapporo, Japan.
5. Department of Industrial Technology Research, Hokkaido Industrial Research Institute, Sapporo, Japan.
6. Takamatsu Oral and Maxillofacial Surgery Clinic, Kagawa, Japan.