1. Odonto-Maxillofacial Surgery Department, Children’s Hospital 1, Ho Chi Minh City, Vietnam
2. Department of Dental Public Health, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam
3. Department of Orthodontics, Faculty of Odonto-Stomatology, University of Medicine and Pharmacy at Ho Chi Minh City, Ho Chi Minh City, Vietnam