1. Department of Stomatology, China-Japan Friendship Hospital, Beijing, China.
2. Key Laboratory for Oral Biomedical Engineering of Ministry of Education, Wuhan University School and Hospital of Stomatology, Wuhan, China.
3. Department of Oral and Maxillofacial Surgery, Seoul National University School of Dentistry, Seoul, Korea.
4. Department of Oral and Maxillofacial Surgery, Seoul National University Gwanak Dental Hospital, Seoul, Korea.
5. Department of Oral and Maxillofacial Surgery, Clinical Trial Center, Seoul National University Dental Hospital, Seoul, Korea.