1. Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
2. Saudi Board of Oral and Maxillofacial Surgery, College of Dentistry, Jazan University, Jazan, Saudi Arabia
3. Division of Endodontics, Khamis Mushait Dental Center, Ministry of Health, Aseer, Saudi Arabia
4. Department of Prosthetic Dental Sciences, Abha Dental Speciality Centre, Ministry of Health, Aseer, Saudi Arabia
5. Department of Prosthetic Dental Science, College of Dentistry, Jazan University, Jazan, Saudi Arabia
6. Faculty of Dentistry, University of Ibn al-Nafis for Medical Sciences, Sana’a, Yemen
7. Dental Intern, College of Dentistry, King Khalid University, Abha, Saudi Arabia.