Supervisor : Olfat El-Sayed Hassanein, Ahmed Fawzy Abo Elezz, Mohamed Essam Mohamed Labib. Includes Arabic Summary. Cataloging from PDF File.Wahsh. Rana Mohamed,2026-01-182026-01-182025.EG-CaMIUDNT Ths919 M.Sc. 2025https://iorep.miuegypt.edu.eg/handle/20.500.13071/351DISSERTATION NOTE-Degree type M.Sc.DISSERTATION NOTE-Name of granting institution Misr International University, Faculty of Oral and Dental MedicineIncludes bibliographic references .133 pages : illustrations, photo ; 29 cmDentistry, OperativeEffect of different cusp reduction designs on the fracture resistance of endodontically treated molars restored with either full or partial occlusal coverage : An in vitro study /تأثير التصميمات المختلفة لإختزال قمم الأسنان على مقاومة الضروس المعالجة لبيا بعد التغطية السطحية جزئيا أو كليا : دراسة معملية