Lateral Sinus Augmentation Using L-PRF and Xenograft: Radiographic and Histomorphometry Analysis.

Severe maxillary atrophy occurs after extraction of teeth in poster maxilla due to dimensional changes occur after removal; besides, sinus membrane pneumatization causes alveolar bone resorption, different classification for remaining alveolar bone in the posterior maxilla were done. In this study, the ABC sinus classification was followed in case selection. A sinus augmentation is done with several techniques. Sinus membrane elevation is done with two different approaches, either the crestal approach or lateral window approach.

Using biofiller material for sinus membrane elevation has been tried by many researchers, using a bone graft, platelet concentrates preparation, collagen membranes, tenting screws, or with implant tenting.

In this study, sinus augmentation was performed using a lateral window approach using L-PRF as sole biofiller material in one group, xenograft as only biofiller material in the second group and mixed xenograft with L-PRF in the third group. Histomorphometric analysis was done from the core biopsy after three months of augmentation, and implant placement was done.

After three months, prosthetic parts were placed. The results of this study show that the augmentation of the sinus using L-PRF mixed with bone graft is showing the best results followed by L-PRF only, and the least was xenograft.

From this point of discussion, it can be considered that using L-PRF as sole biofiller material in sinus augmentation.