Endoscopic maxillary sinus drainage combined with buccal fat pad flaps for repairing large oroantral fistulas in patients with odontogenic maxillary sinusitis

Significant findings of the study In this study, we explored the application of buccal fat pad (BFP) flaps to repair large oroantral fistula (OAFs) in patients with OMS. It was found that endoscopic combined with BFP flaps achieves an acceptable therapeutic outcome in patients with large OAFs and OMS. What this study adds Previous beliefs about secondary sinusitis being a relative contraindication for large OAF repair have been challenged by our findings. This study sheds light on the relationship between OMS and OAF repair and contributes to the understanding of this topic.