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

Abstract

The maxillary sinus elevation technique is a main surgical procedure that permits to augment sufficient bone volume in the posterior maxilla to place implants. There are different techniques for sinus augmentation; the factors that contribute to the survival rate of sinus augmentation and dental implant placement are still the subject of discussion. The most used sinus floor elevation techniques are a) Lateral antrostomy as a one or two-step procedure as direct method. b) Osteotome technique with a crestal approach as indirect method. Osteotome technique can be recommended when more than 6 mm of residual bone height is present, and an increase of 3-4 mm is expected. In case of more advanced resorption direct method through lateral antrostomy must be performed. Both sinus elevation techniques did not seem to affect the implant success rate.