Document Type : Original Article
Authors
1 Oral rehabilitation sciences, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon
2 Professor of Dental Biomaterials, Faculty of Dentistry, Beirut Arab University, Beirut, Lebanon
3 Professor of Prosthodontics, Faculty of Dentistry, Alexandria University.
4 Conservative dentistry department,Faculty of Dentistry,Alexandria University
Abstract
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