Double-Layered Closuring to Repair an Oroantral Fistula Using Septal Cartilage and Buccal Fat Pad.

Oroantral fistula (OAF) is a pathological connection between the maxillary sinus and oral cavity, and it usually occurs after tooth extraction. Proper repair of OAF is important for the prevention of recurrences. The present case offers a technique of OAF repair using septal cartilage and buccal fat pad for the repair of the defect after excision of fistula tract. This double-layered closure is a new technique that could be used to repair chronic OAF.