Patient: There’s a flap of skin on the inside of my cheeks on both sides near my upper teeth what is this?
Doctor: A small skin flap near the upper molars is most likely the salivary gland opening. In some individuals, it’s a little more prominent.
The flap could also be due to chronic irritation or trauma to cheek mucosa because of sharp margins of teeth, restorations etc. I think there is nothing to worry just get yourself clinically examined if it’s because of the sharp teeth margins, rounding of edges may be required. Wishing you a speedy recovery.