4 Reasons Why Your Teeth May Hurt While Exercising

Ever Wonder Why Your Teeth Hurt When You Run?

If you are an avid runner, there are few things that can prevent you from getting out and hitting the pavement…except maybe tooth pain. But even if you aren’t an everyday runner, or maybe a sometimes runner, you may find that your teeth hurt when you DO run. So why, exactly, do your teeth hurt when you run?

Cold Sensitivity

Some people have teeth that react to hot and cold temperatures, including the air! Cold  air could be a reason why your teeth hurt when you run or walk.

Try This: When you’re outside, breathe through your nose and out through your mouth. Your lips, tongue, and cheeks will keep your teeth insulated. If you find that this works, you may want to talk to your dentist about how to reduce the sensitivity.


Bruxism is the unconscious habit of grinding or gritting the teeth, and many people do it when they’re stressed out or working hard. Do you grit or clench your teeth when you run up a hill? What about when you’re pushing for the finish line in that half marathon? If you do, odds are that the sensation you’re feeling in your teeth due to bruxism. When you run each step can send reverberations through your body, and if your teeth are locked together, they’ll feel it too.

Try This: Work on relaxing your jaw and keeping your muscles loose and your teeth apart. That can reduce the force your teeth feel with each step. And make sure your shoes aren’t worn out!

Sinus Problems

Sometimes when your teeth hurt, it doesn’t really have much to do with them at all. Occasionally, a sinus infection or other issue can be the cause of a toothache. Your sinuses sit right behind your cheeks, eyebrows, and jaw, and can cause pain when an issue arises. If you can treat sinus inflammation or infections, you may stop your teeth from hurting while you run or walk.

Other Oral Health Concerns

Sensitive teeth can be a symptom of a larger health issue, such as periodontal disease. As blood flow increases with your walking or running, it can exacerbate inflammation in your mouth, causing your teeth to hurt while you run.

If you are experiencing pain in your teeth while exercising (or for any other reason), be sure sure to talk to your dentist!

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