Document Type : Original Article
Authors
1 Instructor in Prosthodontics, Faculty of Dentistry, Pharos University, Alexandria, Egypt
2 professor at prosthodontic department, faculty of dentistry, Alexandria university, Alexandria, Egypt.
3 Professor of Removable Prosthodontics, and Dean of Faculty of dentistry, Alexandria University, Egypt
4 Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt.
Abstract
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