| Affiliation: | 1. Postgraduate student, Department of Orthodontics, Yonsei University, College of Dentistry, Seoul, South Korea;2. Research fellow, Department of Orthodontics, Institute of Craniofacial Deformity, Yonsei University, College of Dentistry, Seoul, South Korea;3. Assistant professor, Division of Anatomy and Developmental Biology, Department of Oral Biology, Human Identification Research Center, Yonsei University, College of Dentistry, Seoul, South Korea;4. Associate professor, Department of Orthodontics, Yonsei University, College of Dentistry, Seoul, South Korea;5. Professor, Division of Anatomy and Developmental Biology, Department of Oral Biology, Yonsei University, College of Dentistry, Seoul, South Korea;6. Professor, Department of Orthodontics, Yonsei University, College of Dentistry, Seoul, South Korea;1. Department of Child Dental Health, Obafemi Awolowo University Teaching Hospitals, Complex Ile-Ife, Osun State, Nigeria;2. Department of Child Dental Health, University College Hospital Ibadan, Oyo State, Nigeria;1. Postgraduate school of Orthodontics, University of Ferrara, via montebello, 31 Ferrara 44100, Italy;2. Department of Orthodontics, University of Bologna, 40125 Bologna, Italy |
