After a filling procedure, there are a variety of side effects that can occur after the anesthesia wears off. The tooth may be sensitive to pressure, cold air or liquids or sweet foods. Some people may experience numbness, tingling, and some minor pain around the injection site. These side effects often subside within a few hours of the procedure.
Sensitivity should decrease in one to two weeks. Until then, try to avoid anything that causes it. If your tooth is extremely sensitive or your sensitivity does not decrease after two weeks, contact your dentist’s office for an appointment.
The most common reason for pain right after a filling is that the filling is too high; your dentist can adjust the filling by checking the occlusion (bite) of your teeth and removing sufficient of the excess filling material to decrease the pain.
Another less common type of discomfort after a filling is a very sharp shock that appears only when your teeth touch. This is called galvanic shock, and happens when two metals (one in the newly filled tooth and one in the occluding tooth) touch, producing an electric current in your mouth. This would happen, for example, if you had a new amalgam filling in a bottom tooth and had a gold crown in the tooth above it.