You walked out of the dentist's office feeling like it was all behind you, but now your filling hurts after a week?
Mild sensitivity in the first few days is totally normal – the tooth just needs time to "get used to" the new material.
Here's when the pain is still considered a normal reaction:
-Short, sharp zings to cold, hot, or sweet things that fade in just a couple of seconds.
-Mild tenderness when biting down, but it eases up day by day.
-Some general achiness for the first 2–3 days after treating deep decay.
These are the red flags that mean tooth hurts weeks after filling (or even just one week in) and it's not normal anymore:
-Pain that ramps up instead of fading away.
Discomfort lingers for a long time after the trigger (cold, sweet, etc.) is gone.
-Spontaneous throbbing or aching, especially at night.
-The filling feels "in the way" – like the tooth is sitting higher than the others when you close your jaws.
-Sharp, sudden pain specifically when you bite down (cavity filling pain after a week).
Why does this happen?
Most often, it's something straightforward: the filling is slightly too high on the bite. Even a tiny fraction of a millimeter creates extra pressure every time you chew, inflaming the ligament around the root and causing ongoing pain.
The good news? If it's a high filling (by far the most common culprit), fixing it takes just a few minutes. Your dentist simply grinds down the excess material to perfect the bite, and relief is usually almost immed
