Thesis (Ph.D.) - Cairo University - Faculty of Oral and Dental Medicine - Department of Oral and Maxillofacial Surgery

The aim of this study is to evaluate whether alveolar ridge splitting with PRF placement could offer any advantage for patients undergoing horizontal alveolar ridge widening regarding increase bone density compared to mandibular symphysis onlay autogenous bone graft technique. The present study was conducted to compare both techniques clinically and radiographically. The study involved twelve adult patients. They were divided equally into two groups each consisted of 6 patients: group I (Alveolar ridge splitting with PRF placement) and group II (mandibular symphysis onlay bone graft). CBCT was done to all patients to measure bone width and density at the following intervals: pre- operative, 3 and 6 months post-operative. In comparison of pre-operative and 6 months post-operative results of both groups the ridge splitting group I showed lower mean bone width and bone density than the chin graft group II. From the results of the present study, we can conclude that: Mandibular symphysis offered adequate bone quantity, quality and easy accessible site to harvest corticocancellous autogenous graft that can be used successfully for maxillary anterior alveolar ridge augmentation before implant placement. Ridge splitting technique with PRF placement in the splitted area alone did not offer, in some cases, the required alveolar ridge width for future implant placement. Therefore, it may be recommend to apply PRF with bone grafts, or immediate implant when using ridge splitting technique

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