1. Division of Pediatric Dentistry, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
2. Division of Oral & Maxillofacial Surgery, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea
3. Graduate School of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
4. Institute of Clinical Dentistry, Hallym University, Chuncheon 24252, Republic of Korea
5. Division of Orthodontics, Hallym University Sacred Heart Hospital, Anyang 14066, Republic of Korea