Document Type : Original Article
Authors
1 Demonstrator, Department of Orthodontics, Faculty of Dental Medicine, Al-Azhar University for Girls
2 Professor and Head of Orthodontic Department, Faculty of Dental Medicine, Al-Azhar University for Girls.
3 Assistant Professor, Department of Orthodontics, Faculty of Dental Medicine, Al-Azhar University for Girls
4 Assistant Professor, Department of Oral medicine, Periodontology, Diagnosis and Radiology, Faculty of Dental Medicine, Al-Azhar University for Girls.
Abstract
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