1. Division of Endodontics, Department of Restorative Dentistry, College of Dentistry, Najran University, Najran, Saudi Arabia
2. Specialist Dental Center, Ministry of Health, Abha, Saudi Arabia
3. Ministry of Health, Abha, Saudi Arabia
4. Dental Department, Primary Health Care Center, Ministry of Health, Abha, Saudi Arabia
5. Dental Department, Primary Health Care Center, Ministry of Health, Medina Al-Munawwarah, Saudi Arabia
6. Dental Department, Maternity and Children Hospital, Ministry of Health, Abha, Saudi Arabia
7. Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia