Closure of large oroantral fistula with resorbable collagen membrane: Case report

Abstract

Oroantral fistula is pathologic communication between oral cavity and maxillary sinus, usually localized between antrum and buccal vestibulum. Persisting OAF always causes chronic maxillary sinusitis. A technique for closure of a large oroantral fistula with resorbable collagen membrane is described.

Keywords

• oroantral communication
• oroantral fistula
• collagen membrane