Marathon Season in the DC Area: What Arlington Runners Should Know About Oral Health

March 27, 2026
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Marathon season in the Washington DC area brings energy, endurance, perseverance, and a renewed focus on health. While most runners make sure to optimize their training plans and nutrition, oral health is an important piece of peak performance. Unfortunately, it’s also one that’s easy to overlook.

From hydration habits to diet choices, the health of your smile plays a role in how you feel and perform. At Clarendon Family Dentistry, we’re dedicated to ensuring our patients know how their oral health supports overall wellness.

How Oral Health Impacts Athletic Performance

Oral health and physical performance are more connected than many realize. Issues like gum inflammation or untreated cavities can contribute to discomfort, fatigue, and even systemic inflammation. For runners, this can affect both endurance and recovery.

Routine cleanings and exams reduce the risk of infection and ensure your body isn’t working harder than it needs to during training. Dr. Bigid B. Mooney and our knowledgeable team emphasize preventive care to help local athletes stay in peak condition. 

Hydration, Diet, and Your Smile

Distance runners often rely on sports drinks and energy gels to maintain stamina. While effective for performance, many of these products contain sugars and acids that can weaken enamel and increase the risk of tooth decay. Choosing lower-sugar options when possible supports both oral and overall health. Also, staying hydrated with good, old-fashioned water helps protect your teeth by rinsing your mouth and reducing acid exposure. 

Protecting Your Teeth During Training

Clenching or grinding teeth during intense workouts is more common than you might think. Over time, this can lead to wear, sensitivity, or jaw discomfort. Regular oral exams allow early detection and tailored treatment, like custom nightguards or mouthguards, for these issues, helping runners avoid more serious problems during training.

Healthy Smiles and Stronger Runs in Arlington, VA

If you’re in Arlington and want to learn more about how oral health supports athletic performance, during marathon training and in daily life, contact Dr. Brigid B. Mooney and our caring and supportive Clarendon Family Dentistry team to schedule a consultation.