1. Department of Orthodontics, School of Dentistry, Chonnam National University, Gwangju, Korea
2. Center for Plastic & Reconstructive Surgery, Department of Stomatology, Zhejiang Provincial People's Hospital, Hangzhou Medical College, Hangzhou, Zhejiang, China
3. Department of Oral Anatomy, School of Dentistry, Dental Science Research Institute, Chonnam National University, Gwangju, Korea
4. Department of Mathematics and Statistics, Chonnam National University, Gwangju, Korea
5. Department of Orthodontics, School of Dentistry, Dental 4D Research Institute, Dental Science Research Institute, Chonnam National University, Gwangju, Korea