Document Type : Original Article
Authors
1 Teaching assistant of Fixed Prosthodontics department, Faculty of Oral and Dental Medicine, Badr University in Cairo, Cairo, Egypt
2 Professor of Crown and Bridge, Faculty of Oral and Dental Medicine for Girls, Al-Azhar University, Cairo, Egypt.
3 Assistant Professor of Crowns and Bridges, Faculty of dental medicine for girls, Al Azhar University
Abstract
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