1. Department of Orthodontics; School of Dentistry; Kyung Hee University; Seoul Korea
2. Department of Oral and Maxillofacial Pathology, and Research Center for Tooth and Periodontal Regeneration (MRC); School of Dentistry; Kyung Hee University; Seoul Korea
3. Department of Dentistry; Graduate School; Kyung Hee University; Seoul Korea
4. Department of Periodontology; School of Dentistry; Kyung Hee University; Seoul Korea
5. Department of Preventive and Society Dentistry; School of Dentistry; Kyung Hee University; Seoul Korea
6. Department of Oral Anatomy, Cluster for Craniofacial Development and Regeneration Research; Institute of Oral Biosciences; School of Dentistry; Chonbuk National University; Jeonju Korea