New studies show that professional athletes have substantial tooth problems despite good oral hygiene. In our practice, I have seen similar issues with our patients who are extremely physically active. Physical activity can cause dry mouth as we struggle to keep our lungs filled with oxygen. Many people who participate in marathon runs or bike centuries use energy gels, bars and sports drinks during training and during competitions. The problem with these products is that a good majority of them have sugars and are acidic. This is a perfect combination for developing a cavity. So if you are a professional athlete, or someone who participates in competitive activities on your free time, try to limit your exposure to these products. When you do consume them make sure to rinse your mouth with water to reduce the effect of the sugar and acidic in your mouth.