Supervisor : Abeer Hashem Mahran, Ahmed Ibrahim Khalaf. Includes Arabic Summary.Bahnsawy, Sohal Medhat,2026-01-182026-01-182025.EG-CaMIUDNT Ths916 M.Sc. 2025https://iorep.miuegypt.edu.eg/handle/20.500.13071/350DISSERTATION NOTE-Degree type M.Sc.DISSERTATION NOTE-Name of granting institution Misr International University, Faculty of Oral and Dental MedicineIncludes bibliographic references.116 pages : illustrations, photo ; 29 cmEndodonticsImpact of static guided degradation on efficacy and effectiveness of fiber post degradation with different lengths : (An in-vitro study) /تقييم كفاءة وتأثير الاحلال الموجه الثابت للوتد الفايبر بأطوال مختلفة : (دراسة مخبرية)