Incisive Canal Oral Opening
I have lived with a condition for all my adult life where I can suck air into my mouth through a tiny hole in the roof of my mouth, which I believe is approximate to my incisive canal. The hole is small enough that I cannot blow air back through it, so it only really affects me when I'm drinking something thick like a milkshake or a smoothie.
It's a minor annoyance, and I would like to consider my options for having it closed, but I don't know where to begin. Could I have the spot in question cauterized to seal the hole?
I've asked many doctors about this and all have been stumped, so I'm guessing it's not a common occurrence.