Document Type : Original Article
Authors
1 Faculty of dentistry alexandria university
2 Dental Biomaterials Department, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
3 dental biomaterials department alexandria university
4 Professor, Department of Oral Biology, Faculty of Dentistry, Alexandria University, Egypt
5 Department of Polymeric Materials Research, City of Scientific Research and Technology Applications, New Borg El-Arab City, Alex. Egypt.
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