Role of CBCT in Prediction of Oro-antral Communication Post Third Molar Extraction: A Retrospective Study.

Objective:  Oro-antral communication (OAC) is one of the most frequently encountered complications during third molar extraction. Various radiographic factors, like excessive maxillary sinus pneumatization, long periods of edentulism, periapical lesions, etc., have been considered high-risk factors for OAC.