Document Type : Original Article
Authors
1 Lecturer of oral and maxillofacial radiology ,faculty of dentistry,Misr international university
2 Lecturer of orthodontics faculty of oral and dental medicine misr international university
3 Lecturer of oral medicine ,periodontology and oral diagnosis faculty of oral and dental medicine misr international university
4 Lecturer of prosthodontics, faculty of dentistry, Cairo university
Abstract
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