1. Clinical Instructor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea.
2. Assistant Professor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea.
3. Chief Researcher, Department of Biomedical Engineering, College of Medicine, Kyunghee University, Seoul, Korea.
4. Professor, Department of Biomedical Engineering, College of Medicine, Kyunghee University, Seoul, Korea.
5. Professor, Department of Orthodontics, College of Dentistry, Kyunghee University, Seoul, Korea.