1. Department of Prosthodontics, Dankook University College of Dentistry Jukjeon Dental Hospital, Yongin, Republic of Korea.
2. Private Practice, The Seoul Dental Clinic, Seongnam, Republic of Korea.
3. Biomedical Knowledge Engineering Lab., Seoul National University School of Dentistry, Seoul, Republic of Korea.
4. Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.
5. Private Practice, Yang's Dental Clinic, Seoul, Republic of Korea.
6. Department of IT Engineering, Hansung University, Seoul, Republic of Korea.
7. Department of Prosthodontics and Dental Research Institute, Seoul National University School of Dentistry, Seoul, Republic of Korea.