Document Type : Case series/reports
Authors
1 Department of Orthodontics, Faculty of Dentistry, The British University in Egypt
2 faculty of dentistry ain shams university
3 Department of Orthodontics, Faculty of Dentistry, Cairo University
4 Head of orthodontic department .faculty of dentistry , Ain shams university
5 Professor of orthodontics, faculty of dentistry ,ain shams university
Abstract
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