Sports drinks have grown in popularity since University of Florida football trainers developed Gatorade® in the 1960s. They're widely viewed as a convenient fluid and nutrient replacement after strenuous workouts. Recently, another beverage has become wildly popular — the energy drink, whose high caffeine promises heightened concentration and physical ability.
While energy drinks have raised health concerns, sports drinks are widely regarded as safe. Both kinds of drinks, however, may be a cause for concern when it comes to your dental health.
While both are substantively different, they do have one thing in common — both beverages contain high levels of citric and other acids to improve taste and shelf life. This high acidity can have a detrimental effect on tooth enamel.
When the mouth becomes too acidic after eating or drinking (4 or lower on the pH scale), the tooth's outer protective enamel begins to erode, a process known as demineralization. Saliva with its neutral pH of 7 can neutralize this over-acidity in about thirty minutes to an hour after eating and the enamel will actually begin to remineralize. But when there's an overabundance of acid, as with these beverages, saliva's neutralizing ability becomes inhibited. The mouth remains too acidic for a longer period, resulting in greater erosion of the enamel.
Generally speaking, we don't recommend energy drinks at all. If, however, you occasionally take in a sports drink, add the following precautions, if possible: combine the drink with a mealtime and rinse your mouth with pH-neutral water to wash away residual acid from the sports drink; and wait an hour before brushing your teeth — since some demineralization occurs before saliva neutralizes the acid, you could brush away some of the softened enamel before it can remineralize.
Finally, consider this: pure, clean water is still the best hydrator in the world. Replenishing your fluids with it after exercise might also be the better choice for your dental health.
If you would like more information on the effects of sports and energy drinks on oral health, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Think Before you Drink.”