Document Type : Original Article
Authors
1 B.D.S 2010, Faculty of Dental Medicine Al-Azhar University Demonstrator, Department of Pedodontics and Oral Health (Assuit Branch) Demonstrator, Department of Pedodontics and Dental Public Health ( Assuit Branch )
2 Professor and Head of Pedodontics and Oral Health Department, Faculty of Dental Medicine, Al-Azhar University (Boys-Cairo)
3 Assistant Professor of Pedodontics and Oral Health Department, Faculty of Dental Medicine, Al-Azhar University (Boys-Cairo).
4 Assistant Professor of Periodontology, Oral Diagnosis and Dental Radiology Department, Faculty of Dental Medicine, Al-Azhar University (Assuit).
Abstract