Endoscope-Assisted Maxillary Sinus Floor Elevation with Platelet-Rich Fibrin Grafting and Simultaneous Implant Placement: A Prospective Clinical Trial

To evaluate the clinical and radiographic outcomes of endoscope-assisted maxillary sinus floor elevation with platelet-rich fibrin grafting and simultaneous implant placement (PESS) in atrophic maxillae.Twenty-three implants were placed to rehabilitate atrophic maxillae. Patient satisfaction was measured with a visual analog scale (VASpain). CBCT was taken to assess the bone changes for the elevated sites.Twenty-two of 23 implants fulfilling the survival criteria represented a 1-year survival rate of 95.65%. The VASpain score decreased with time. The residual bone height was 4.45 ± 1.44 mm. The elevation height was 6.72 ± 1.84 mm. The definitive restoration was completed in the 4th month postsurgery. The peri-implant bone level value was 6.04 ± 2.30 mm, 6.32 ± 2.25 mm, and 6.71 ± 1.97 mm at the 3rd, 9th, and 15th month postsurgery. The crestal bone level value decreased by 0.22 ± 0.56 mm from the 3rd month to the 15th month postsurgery (P > .05). Bone mineral density increased with time at the neck, middle, and root site of implant.PESS in the maxilla resulted in predictable peri-implant bone formation. This strategy is a relatively safe and effective approach with less invasion, which provides new insights into the choice of implant treatment plans.