Document Type : Original Article
Authors
1 Assistant Lecturer, Pediatric Dentistry and Public Health, Faculty of Dental Medicine for Girls, Al- Azhar University.
2 Professor of Oral Medicine and Periodontology, and Former Dean, Faculty of Dental Medicine for Girls, Al-Azhar University
3 Professor of Pediatric Dentistry and Public Health, Faculty of Oral and Dental Medicine, Cairo University.
4 Professor of Operative Dentistry, and Former Vice Dean, Faculty of Dental Medicine for Girls, Al-Azhar University
5 Associate Professor of Pediatric Dentistry and Public Health, Faculty of Dental Medicine for Girls, Al- Azhar University
Abstract