1. Operative Dentistry Department, Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia.
2. Dental Department, International Medical Center, Jeddah, Saudi Arabia.
3. Student Affairs Unit, Faculty of Dentistry, Al-Farabi Colleges, Jeddah, Saudi Arabia.
4. Student Affairs Unit, King Abdulaziz University, Jeddah, Saudi Arabia.
5. Student Affairs Unit, College of Dentistry, King Abdullah International Medical Research Center/King Saud bin Abdulaziz University for Health Sciences—National Guard Health Affairs, Riyadh, Saudi Arabia.