1. Division of Orthodontics, Department of Preventive Dental Sciences, College of Dentistry Jazan University Jazan Saudi Arabia
2. Dental Public Health, Preventive Dental Science Department, College of Dentistry King Saud Bin Abdulaziz University for Health Sciences Riyadh Saudi Arabia
3. Division of Pediatric Dentistry, Department of Preventive Dental Sciences, College of Dentistry Jazan University Jazan Saudi Arabia
4. Resident Doctor, Jazan Psychatric Hospital Military Forces Hospital Jazan Saudi Arabia
5. Division of Dental Public Health, Department of Preventive Dental Sciences, College of Dentistry Jazan University Jazan Saudi Arabia
6. Division of Endodontics, Department of Restorative Dental Sciences, College of Dentistry Jazan University Jazan Saudi Arabia
7. Department of Periodontology and Oral Medicine, College of Dentistry Qassim University Buraidah Saudi Arabia
8. Division of Orthodontics, Department of Pediatric Dentistry and Orthodontics, College of Dentistry King Saud University Riyadh Saudi Arabia