Three-Dimensional Calculation of Sinus Augmentation Volume after Maxillary Sinus Floor Elevation

Abstract

THREE-DIMENSIONAL CALCULATION OF SINUS AUGMENTATION VOLUME AFTER MAXILLARY SINUS FLOOR ELEVATION ABSTRACT Objective: This study aimed to calculate the volume of the maxillary sinus and grafted part of it with different modes of three-dimensional reconstruction software. Materials and Methods: This retrospective volumetric cone-beam computed tomography study was carried out on 21 patients/ 36 maxillary sinuses who had undergone maxillary sinus lift surgery using a lateral approach, between 2010 and 2016 at the Department Periodontology. All statistical analyses were performed by using the NCSS (Number Cruncher Statistical System, Kaysville, Utah, U.S.A.) software. P values <0.05 were considered to indicate statistical significance. Results:The mean volume of the right maxillary sinus cavity was 15.37 cm³ while for the left it was 15.90 cm³. There was no statistically significant difference between right and left maxillary sinus volumes (p>0.05). An occupied portion of the sinus cavity after lateral sinus floor elevation surgery was approximately 14.87 %. Furthermore, the volume through manual and automatical modes of the software do not affect the results (p>0.05). The right and left sides of the maxillary sinus volumes were not different from each other. Gender and measuring mode was not found to be related to volumetric values of the maxillary sinus cavity. Conclusions:The grafted volume of the sinus cavity was defined as a safe volume in terms of serious complications during and after the surgery.