1. Department of Prosthetic Dental Sciences, College of Dentistry, Jazan University, Jazan, Saudi Arabia
2. Intern, College of Dentistry, Jazan University, Jazan, Saudi Arabia
3. Department of Prosthetic Dentistry, College of Dentistry, King Khalid University, Abha, Saudi Arabia
4. Department of Oral and Maxillofacial Prosthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
5. Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia