TY - BOOK AU - Mai Fakhr Eldeen Mohammed AU - Ahmed Hussien Labib , AU - Heballah Mohamed Maged Elfar , TI - Fracture resistance of structurally compromised roots reinforced with different intra radicular rehabilitated materials / PY - 2013/// CY - Cairo : PB - Mai Fakhr Eldeen Mohammed , KW - Fracture resistance KW - MTA KW - Portland cement N1 - Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Endodontics; Issued also as CD N2 - Aim :to compare the fracture resistance of weakened root structure using three different reinforcement materials namely: Mineral trioxide aggregate(MTA), grey Portland cement (GPC) and glass ionomer restorative material (GI) with and without the use of glass fiber post. Materials and Methods: Eighty human maxillary central incisors were collected,sixty specimens were randomly assigned into three experimental groups (n=20) according to the reinforcement material used ER -