If you asked the forum about this exposure, I am absolutely sure you were told you never had a risk. HIV is transmitted from unprotected vaginal or anal sex or sharing IV drug needles. You had no risk. Your lump in your mouth found at a dentist appointment has ZERO relationship to hiv. Because you had ZERO risk.
Once again to repeat what you've already been told, you had NO risk for HIV. Period, end of story. You already know the only ways that HIV risk occurs because you were told in your previous post, more than once. Any symptoms you're having now has nothing to do with it because you don't have HIV.