Second surgery to close oroantral fistula seems like its failing too
I had tooth #3 extracted by an oral surgeon, and as the surgeon had suspected, there was a communication with the sinus cavity left behind. He attempted to patch it and place a bone graft, but unfortunately, days later the bone graft mostly fell out and I could feel air passing into my sinus from my mouth.
Months pass while we wait to see if the communication will heal but it never does. I go to a different oral surgeon (not blaming the first for the failed patch, we just didn't connect well) who proposed a buccal fat pad graft. I had that surgery done last week, but unfortunately, days later, I again feel air passing into my sinus from my mouth, so I suspect this one has failed too. He suggested it may still heal together in spite of the air leak, but we'll have to wait and see.
I'm hoping to get a better understanding of whether my experience is unusual or not for patching oroantral fistulas, and what might be in store for me in the future. I know I need to patch this hole, but recovery from both surgeries has been painful and defeating mentally, given the problem still exists and I feel like my mouth is getting permanently mangled.
Any pointers as to what might be going wrong, questions about my journey, context on the failure rate of this surgery, etc, would be very much welcome. Thank you!