Supervisor : Lamia Sayed Kheiralla, Mostafa Hussein. Includes Arabic Summary.El-Sayed, Ahmed Amr,2024-11-032024-11-032024.EG-CaMIUDNT Ths774 M.Sc. 2024https://iorep.miuegypt.edu.eg/handle/20.500.13071/288DISSERTATION NOTE-Degree type M.Sc.DISSERTATION NOTE-Name of granting institution Misr International University, Faculty of Oral and Dental MedicineIncludes bibliographic references.118 pages illustrations, photo ; 29 cm + 1 CD-ROM (4 3/4 in.)Fixed prosthodonticsEffect of impression techniques on screw loosening for screw retained implant supported restorations under cyclic loading : In-vitro study /تأثير طرق المقاسات للتركيبات المدعمة بالغرسات والمثبتة بالمسامير على فك المسامير بعد التحميل الدوري : دراسة معملية