Prosthodontic Rehabilitation of Oroantral Defects with Interim Obturator: A Case Report

Abstract

Oroantral fistula (OAF) represents an acquired communication between the oral cavity and maxillary sinus. It commonly arises from dental extractions, trauma, pathology, or maxillary surgical resections. If left untreated, OAF can cause sinus infections, hypernasal speech, nasal regurgitation, and impaired mastication. Prosthodontic rehabilitation with obturators provides an effective non-surgical solution, particularly when surgical closure is delayed or contraindicated. This case report describes the prosthodontic management of a 57-year-old male presenting with oroantral fistulas in the left maxillary region. An interim obturator was fabricated and delivered, restoring functional efficiency and patient comfort.