Incidental findings are common in the maxillary sinus. Fewer studies have addressed the prevalence of maxillary sinus pathologies. These sinus abnormalities are benign, self-limiting and usually go unnoticed in asymptomatic patients but are important for avoiding failures in future procedures involving maxillary sinus. Aim: To assess the prevalence of incidental maxillary sinus pathologies on CBCT scans Objectives: To categorize incidental findings based on the parameters- Age, gender, type of pathology and to increase the awareness of the reporting radiologists and dental practitioners with regards to the range of findings.

Materials and methods: Retrospective study was carried out using 271 CBCT scans for evaluation of maxillary sinus pathologies. The CBCT Scans were observed in the Coronal, Sagittal and Axial views, for evaluating radiopacities and mucosal thickening. Chi-square test…