1. Department of Conservative Dental Sciences, College of Dentistry, Qassim University, P.O. Box 1162, Buraydah 51452, Saudi Arabia
2. Department of Endodontics, Faculty of Dentistry, October University for Modern Sciences and Arts, 6th of October City 12451, Egypt
3. Department of Prosthodontics, College of Dentistry, Qassim University, P.O. Box 1162, Buraydah 51452, Saudi Arabia
4. Department of Clinical Dental Sciences, College of Dentistry, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
5. Prosthodontics Division, Schulich School of Medicine and Dentistry, Western University, London, ON N6A 5C1, Canada