It depends on why it’s happening. Temporary sensitivity after whitening, a filling, or a cleaning is normal and usually resolves within a few days to a couple of weeks. But if you’re getting sharp pain from cold, heat, or sweet foods that’s been going on for a while, it’s worth getting checked.

Sensitivity that lingers can be a sign of a cavity, a cracked tooth, gum recession exposing the root, or enamel wear — none of which will resolve on their own. A good rule of thumb: if it’s been more than two weeks, or if the pain is intense or getting worse, come in and let us take a look. Catching the cause early almost always means a simpler fix.