Document Type : Original Article
Authors
1 Dental Practitioner in Governmental Medical Center in El Sherouk City
2 Professor and head of Endodontic Department Faculty of Dental Medicine, Future University, Professor of Endodontic Department Faculty of Dental Medicine for Girls Al-Azhar University, Cairo, Egypt.
3 Associate Professor and head of Endodontic Department Faculty of Dentistry, Horus University, Egypt, Associate Professor of Endodontic, Endodontic Department Faculty of Dental Medicine, Al-Azhar University- Assiut Branch, Egypt.
4 Professor of Microbiology and Immunology Faculty of Medicine, Al-Azhar University, Cairo, Egypt.
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