1. Department of Orthodontics, School of Dentistry, Pusan National University, Yangsan, Korea.
2. Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Yangsan, Korea.
3. Department of Oral and Maxillofacial Surgery, Jaw and Face Surgery Center, On General Hospital, Busan, Korea.
4. Defense Advanced Research and Development Center, Agency of Defense Development, Daejeon, Korea.