Objective: to evaluate clinically and radiographically implant placement with Bio-Oss mixed with platelet rich fibrin after ridge splitting in lower anterior area. Methods: This study included 10 male patients suffering from loss of lower anterior teeth with bone loss leaving 7-8 mm of bone height and need implant to restore function in anterior region. The patients divided into two groups: In group (I) the patients treated with dental implant placement with Bio-Oss mixed platelet rich fibrin after ridge splitting in lower anterior mandible. In group (II) the patients treated with dental implant placement without the use of any graft material after ridge splitting in lower anterior mandible. Clinical examination was made to edentulous regions: Quality, quantity of the mucosa, contour of the underlying bone and crown to bone relationship. Preoperative Cone Beam Computed Tomography (CBCT) was taken for patient to determine alveolar bone height and width. The Bio-Oss graft mixed with PRF was packed carefully around implant and between buccal and lingual plate. Follow up was made to detect changes in bone density, ridge width and implant stability. All readings were recorded and analyses statistically. Results: the study showed a statistical improvement in ridge width, bone density and implant stability. Conclusion: PRF mixed with Bio-Oss provides a stable widening of the alveolar ridge, prevent soft tissue migration to gap around implant and prevent collapsed buccolingual plate of bone after ridge splitting technique.
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