1. Dental Hygiene Program Carrington College San Jose California USA
2. Department of Dental Public Health Faculty of Dentistry King Abdulaziz University Jeddah Saudi Arabia
3. Department of Endodontics Faculty of Dentistry King Abdulaziz University Jeddah Saudi Arabia
4. Department of Pediatric Dentistry Faculty of Dentistry King Abdulaziz University Jeddah Saudi Arabia