Abstract
Oro-antral fistula is an unnatural, pathological and epithelised communication between oral cavity and maxillary sinus. It is mainly due to improper Instrumentation during extraction of maxillary premolars and molars. Closure of oro-antral fistula by suturing of buccal fat pad with palatal flap has shown a high success rate because of its rich vascularity and location. Role of PRF is like icing on the cake in healing of oral defects. PRF (Platelet-Rich Fibrin ) is a healing biomaterial which form a strong natural fibrin matrix which promotes healing. In this case, oro-antral communication was created after the extraction of #16 , which was closed with buccal fat pad along with PRF and monitored until complete epithelisation of socket was achieved. KEYWORDS Buccal fat pad, Platelet rich fibrin, maxillary molars, maxillary sinus, oro antral fistula,
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