1. School of Dentistry, The Graduate School, Seoul National University, Seoul, Republic of Korea.
2. Department of Oral and Maxillofacial Surgery, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
3. Department of Dentistry & Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea.
4. Department of Prosthodontics, Section of Dentistry, Seoul National University Bundang Hospital, Seongnam, Republic of Korea.
5. Department of Oral and Maxillofacial Surgery, Asan Medical Center, College of Medicine, Ulsan University, Seoul, Republic of Korea.