Eat a chip or something really sharp & have it cut the roof of your mouth?

Eat a chip or something really sharp & have it cut the roof of your mouth?

I did and burned it with hot food. For some reason it still didn't heal, I can move a "flap" of skin on the roof of my mouth.

Should I just leave it alone, go to the doctor, or dentist? What could it be? Do you know what it's called?
Eat a chip or something really sharp & have it cut the roof of your mouth?
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