Document Type : Original Article
Authors
1 Dentist at Egyptian ministry of health,
2 Associate Professor of oral and maxillofacial Surgery Faculty of Dental Medicine for Girls’ Al Azhar University,
3 Professor Of oral and maxillofacial Surgery Faculty of Dental Medicine for Girls’ Al Azhar University,
4 Professor of Surgery Anesthesiology and Radiology Faculty of Veterinary Medicine Cairo University,
5 Professor of Oral Biology Faculty of Dental Medicine for Girls’ Al Azhar University,
6 ِِAssistant professor of oral and maxillofacial surgery, faculty of Dental Medicine for Girls' Al Azhar University, cairo, Egypt.
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