Maxillary Sinus Elevation

Implant supported dental restorations are sometimes challenging with decreased bone height in the posterior maxilla. The goal of this study is to test an augmentation bone substitute in elevating the maxillary sinus floor; in terms of soft tissue reaction, formed bone height as well as structure. Bone substitute will be compared to a graftless method of bone augmentation depending on participants' bodies forming bone in the defective area. Participants will: * Undergo lateral maxillary sinus floor elevation with bone substitute or graftless method. * Record postoperative swelling and pain through the follow up period. * Take radiographs for evaluation of the formed bone before placing dental implants.

This prospective cohort study aims to identify clinical and anatomical predictors for complications following transosseous maxillary sinus lift procedures using the Versah (Densah burs) technique. The study focuses on patients undergoing transcrestal sinus floor elevation without a lateral window, with or without simultaneous dental implant placement. Variables such as residual bone height, sinus membrane thickness, bone density, and patient-related factors are being evaluated. The objective is to enhance risk stratification and optimize treatment planning for transosseous sinus augmentation.