Local anaesthetic may be used before a filling is done. Thus, you may experience numbness after the procedure for 1 to 2 hours.
After the numbness wears off, you may notice the following effects:
Sensitivity in teeth when breathing in cold air or eating and drinking hot or cold food and beverages
Pain in teeth nearing the filling
Pain when clenching teeth
Pain in the filled tooth when eating, brushing or flossing
Tenderness in gums
These effects may last up to 2 weeks, depending on the extent of the decay.