Thesis (M.Sc.) - Cairo University - Faculty of Oral and Dental Medicine- Department of Prosthodontics

Any inadequacy of the alveolar ridge as result of tooth extraction, periodontal disease or trauma presents a major limitation that hinders the successful implant placement from a functional, prosthetic and esthetic viewpoint.Therefore, bone augmentation procedures are mandatory to overcome this problem. Several techniques have been proposed for the augmentation of the alveolar ridge width insufficiency with varying success rates and related complications. Among the different techniques, GBR is a well-documented, safe and predictable approach for staged horizontal augmentation. For a successful GBR procedure.Ti-mesh has shown superior space maintenance and constrain to contour collapse along with ease of handling for three-dimensional reconstruction of relatively large bony defects. Primary wound closure is considered among four fundamental properties that are required for a successful GBR procedure. Primary wound closure occurs with tension-free adaptation of the flap margins and is needed to assure an undisturbed environment for healing. The current study was conducted in an attempt to compare between two techniques of flap advancement, Coronal advanced lingual flap (test group) to the Modified periosteal releasing incision.Two groups of participants, seven patients in each group, undergoing GBR using Ti-Mesh &Xenograft.The flap advancement in each group was achieved using a different flap advancement technique. The patient were followed up for six months postoperative clinicaly and by cone beam computed tomograms

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