Hello,
Sensitivity after a filling is common. Avoid any
stress to the new filling for a few days is always a good idea. When getting numb, you sometimes don't bite down the same way as when not numb. Call your
dentist to check your bite and have a high spot reduced if needed. If the fling does not appear in tact or rough, also, get it checked.
Symptoms of greater concern that may require an X-ray to look at the root include a reaction to pressure where you can't chew on that tooth, more hot than
cold sensitivity, bubble or swelling on gum near tooth, pain medication does not working, and increase in discomfort.
Having your mouth and lips held open can cause soreness or result in slight irritations. The third molar is an awarkward location. Large decay areas with deep fillings can be sensitive for quite sometime. The concern is with an infection and needing to have a
root canal on the tooth. I will warn patients of this concern when treating decayed teeth. You may wish to give the tooth more time and monitor for the conditions above or make a dental visit to check on the filling. You seem to be improving rather than developing more symptoms which is a positive !