Document Type : Original Article
Authors
1 Dentist at ministry of health, cairo, egypt
2 Professor of Endodontics, Endodontic Department, Faculty of Dental Medicine for Girls, Al–Azhar University, Cairo, Egypt
3 Lecturer of Endodontics, Endodontic Department, Faculty of Dental Medicine, Assiut Branch, Al–Azhar University, Cairo, Egypt
4 Professor of microbiology, Faculty of Medicine, Al-Azhar University, Cairo, Egypt
Abstract
Keywords
Main Subjects