INTRODUCTION The success of implant therapy depends primarily on appropriate treatment planning, case selection, properly performed implant placement surgery and good implant to bone adhesion. This can be achieved by several types of grafts around the implant. OBJECTIVES: To evaluate clinically and radiographically the use of autogenous bone graft with and without platelet rich fibrin around immediately inserted implants and to evaluate implant stability by resonance frequency analysis device

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... sstell). MATERIALS AND METHODS: Clinical trial on 14 patients indicated for maxillary anterior teeth extraction selected from the outpatient clinic in oral and maxillofacial surgery department, Alexandria University were divided into two groups. In group A: the implant was inserted with autogenous bone collected from freshly extracted socket mixed with platelet rich fibrin as a filling of the gap, while in group B: the implant was inserted with autogenous bone collected from freshly extracted socket as filling of the gap. RESULTS clinical and radiographical evaluation of the implants showed good osseointegration between the bone and the immediate implant in both groups. CONCLUSIONS: The results show that the harvested autogenous bone may be useful when small amount of bone is required and that the PRF helps in bone formation and osseointegration in a short period of time.