1. Department of Orthodontics, School of Dentistry, Pusan National University, Korea.
2. Pretty Smile Orthodontic Clinic, Korea.
3. Agency of Defense Development, Daejeon, Korea.
4. Erumi Dental Clinic, Busan, Korea.
5. Department of Oral and Maxillofacial Surgery, School of Dentistry, Pusan National University, Korea.