Evaluation of Lateral Sinus Floor Elevation Using Xenograft Versus L-PRF Block Combined With Xenograft

Rehabilitation of the posterior maxilla with dental implants is frequently complicated by insufficient residual bone height resulting from alveolar ridge resorption and maxillary sinus pneumatization. Lateral sinus floor elevation has become a predictable and widely accepted procedure for increasing bone volume and enabling implant placement in severely atrophic posterior maxillary sites. The long-term success of this procedure is largely dependent on the grafting material used to maintain space beneath the elevated Schneiderian membrane and promote new bone formation. Deproteinized bovine bone mineral (DBBM), commonly known as xenograft, remains the most extensively documented grafting material for sinus augmentation due to its osteoconductive properties, volumetric stability, and favorable long-term clinical outcomes. However, xenografts are characterized by slow remodeling and prolonged persistence of residual graft particles, which may delay replacement by vital bone. Consequently, strategies to enhance the biological activity of xenografts and accelerate bone regeneration have become an area of considerable research interest. Leukocyte- and platelet-rich fibrin (L-PRF) is a second-generation autologous platelet concentrate containing a fibrin matrix enriched with platelets, leukocytes, cytokines, and growth factors including platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), and transforming growth factor-β (TGF-β). These biological media…

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Nesma Shemais, PhD  ·  0529961988  ·  dr.nesma@gmu.ac.ae

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