A toothache can pop up out of nowhere, and when it does rear its ugly head, it can be hard to tell where it’s coming from. If you can’t find a reason for the discomfort in your smile, it may be something else. But before you call your dentist, try sniffing. Sinus problems and toothaches can feel very similar, and telling them apart isn’t always easy. Here’s how to figure out whether you need preventive dentistry or some allergy tablets.
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