Effect of Changing Grafting Sequences During Sinus Lifting & Simultaneous Implant Placement in the Gained Bone Using Customized Surgical Guide

Overview

The aim of this randomized clinical trial is to evaluate the effect of changing the sequence of bone grafting during maxillary sinus lifting and simultaneous dental implant placement. The study compares a traditional sequence (sinus elevation, implant placement, then bone grafting) with a modified sequence (sinus elevation, bone grafting, then implant placement). Both procedures utilize a customized surgical guide and are performed on patients with a vertical bone measurement of 5 mm or slightly more. The primary goal is to assess bone density, along with secondary outcomes including vertical bone height gained, bone volume, and implant stability.

Maxillary sinus floor augmentation (MSFA) is a common procedure to restore vertical bone defects in the posterior maxilla to allow for oral rehabilitation using dental implants. However, traditional techniques can have demerits such as increased operative time, liability to infection, and increased complication rates. Despite advancements made to improve the surgical technique, several complications can yet arise which may compromise the success of the operation. This study aims to enhance surgical sequences and compare the efficacy of sinus elevation, implant, and bone graft procedures using a customized surgical guide. The guide includes a lateral window for sinus elevation and a drill guiding hole for implant replacement. The study hypothesizes that the modified sequence (sinus elevation, bone graft, implant) is more accurate and provides better outcomes regarding bone density, stability, and height of the gained bone compared to the traditional sequence (sinus elevation, implant, bone graft).