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How to Protect Your Oral Health While Working Out

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Woman working out.

Regular exercise is essential for overall health, but many people don’t realize that their workout habits can affect their oral health, too. From dehydration to sports drinks and teeth grinding, certain fitness routines may put your smile at risk if you’re not careful. The good news is that a few simple adjustments can help protect your teeth and gums while you stay active.

Stay Hydrated with Water
Hydration is key during workouts, not just for your body, but for your mouth as well. Exercise reduces saliva flow, which can lead to dry mouth. Saliva plays an important role in neutralizing acids and washing away bacteria. When saliva production drops, your risk of cavities and bad breath increases. Choose water as your primary hydration source during and after workouts. While sports drinks may seem helpful, many contain high levels of sugar and acid that can erode enamel over time.

Be Smart About Sports and Energy Drinks
Sports and energy drinks are popular among gym-goers, but they can be harmful to teeth. These beverages are often acidic and sugary, creating an ideal environment for enamel erosion and tooth decay. If you do consume them, try to limit how often you sip throughout your workout. Rinse your mouth with water afterward to help neutralize acids. Avoid brushing immediately after drinking acidic beverages, as enamel is temporarily softened—wait at least 30 minutes before brushing.

Use a Mouthguard for High-Impact Activities
If your workout includes contact sports, weightlifting, or high-impact activities, wearing a mouthguard is essential. Mouthguards help protect your teeth from chips, fractures, and knocked-out teeth. They can also reduce the risk of jaw injuries and soft tissue damage. A custom mouthguard from your dentist offers the best fit and protection, staying securely in place while allowing you to breathe and speak comfortably during exercise.

Watch for Teeth Grinding or Jaw Clenching
Many people clench their jaw or grind their teeth during intense workouts, especially when lifting heavy weights or focusing on form. Over time, this habit can lead to tooth wear, jaw pain, and headaches. Being mindful of your jaw position and keeping your teeth slightly apart during exertion can help reduce stress on your teeth. If you notice ongoing jaw soreness or tooth sensitivity, talk to your dentist about protective options.

Maintain Good Oral Hygiene After Workouts
After exercising, especially if you’ve had sugary or acidic drinks, it’s important to care for your teeth properly. Rinse with water right away, then brush and floss once your mouth has returned to a normal pH level. Keeping a travel toothbrush or sugar-free gum in your gym bag can help support oral health on busy days.


Staying fit shouldn’t come at the expense of your smile. By making smart hydration choices, protecting your teeth during activity, and maintaining good oral hygiene, you can support both your physical fitness and long-term oral health at the same time.

About the Practice

Has it been 6 months or longer since your last dental checkup? Turn to our team here at Fairfax Dental Group for excellent preventive care. Whether it’s a routine checkup and cleaning you need or a mouthguard or dental sealants, we’ve got everything you need. Keep your oral health foundation healthy with us. Schedule an appointment online or call (703) 560-6301.