Exercise is essential for overall health. It boosts your mood, strengthens your heart, and helps maintain a healthy weight. But while hitting the gym or going for a run can do wonders for your body, you might be surprised to learn that your workout routine could be harming your oral health. Though exercise is a good habit, certain aspects of it can negatively impact your teeth and gums if you’re not careful.
Here are several ways exercise might be affecting your smile and what you can do to protect it.
Mouth Breathing and Dry Mouth
During intense workouts, especially cardio-heavy routines, it’s common to breathe through your mouth rather than your nose. Mouth breathing, however, reduces saliva production, leading to dry mouth (xerostomia). Saliva plays a vital role in protecting your teeth by washing away food particles and neutralizing harmful acids. Without enough saliva, your mouth becomes a breeding ground for bacteria, which increases your risk of cavities and gum disease.
Tip: Stay hydrated before, during, and after exercise. If possible, try nasal breathing during lower-intensity activities and sip water frequently.
Sugary Sports Drinks and Snacks
Many athletes and fitness enthusiasts reach for sports drinks, energy bars, or gels during or after a workout. While they may boost performance or aid recovery, these products are often loaded with sugar and acids. The combination of sugar and acid can erode tooth enamel and feed bacteria that cause cavities.
Tip: Choose water over sugary sports drinks whenever possible. If you need electrolytes, look for sugar-free options or rinse your mouth with water afterward to reduce acid exposure.
Clenching and Grinding
Weightlifters and those engaging in intense strength training often clench their jaw during lifts without realizing it. This constant tension can lead to tooth wear, fractures, or even TMJ (temporomandibular joint) issues. Grinding your teeth while concentrating on heavy lifts can also contribute to enamel erosion and jaw pain.
Tip: Be mindful of your jaw during workouts. If clenching is a regular issue, talk to your dentist about wearing a mouthguard during training.
Pre-Workout and Protein Supplements
Many pre-workout powders, energy chews, and protein shakes contain hidden sugars and acidic ingredients. These can weaken tooth enamel over time, especially when consumed frequently and without rinsing or brushing afterward.
Tip: Check labels for sugar content and acidic ingredients. Consider drinking water after supplements or brushing your teeth 30 minutes later to protect your enamel.
Neglecting Oral Hygiene Due to Busy Schedules
People committed to fitness often follow strict routines and meal plans, but oral hygiene can sometimes fall through the cracks. Skipping brushing after a protein bar or forgetting to floss after a late workout can quickly lead to plaque buildup and gum inflammation.
Tip: Make oral hygiene part of your health routine. Keep travel-sized toothbrushes in your gym bag or car to clean your teeth after workouts.
Exercise is excellent for your body, but it’s important not to overlook its impact on your oral health. By understanding how certain habits during exercise can affect your teeth and gums, and taking a few simple precautions, you can enjoy both a strong body and a healthy smile.
About the Author
Dr. Stacy Hebert-Schoener earned her DDS at the University of Texas Dental Branch in Houston before completing a residency at Memorial Hermann Hospital that focused on caring for medically complex patients, trauma-related dentistry, and anesthesia. Today, Dr. Hebert-Schoener stays current in her field through memberships in organizations such as the American Dental Association, the Texas Dental Association, and the Greater Houston Dental Society. If you’ve found yourself in an emergency dental situation, schedule your appointment now online or call (713) 666-1597.