Are Sports Drinks as Harmful to Kids’ Teeth as Soda?

While kids play sports in the summer heat, they will be tempted to gulp down large sugary sports and energy drinks to stay cool. Swigging too many of these beverages, however, can harm a child’s teeth. Delta Dental advises parents to monitor and limit the number of these beverages their children are consuming to help prevent cavities.

Young athletes do need to replace fluids, carbohydrates, protein and electrolytes after hard exercise. But the high sugar and highly acidic content of sports drinks can increase a child’s susceptibility to tooth decay and enamel erosion if too much is consumed.

Like soda, energy and sports drinks contain high levels of acidity and high concentrations of sugar. A study from the Harvard School of Public Health found that 12 ounces of a leading brand of cola and a leading brand of energy drink each contained 42 grams of sugar, while a leading sports drink contained 21 grams of sugar.1 According to a University of Iowa study, a leading sports drink had the greatest erosion potential on both enamel and roots of teeth when compared to leading brands of energy drinks, soda and apple juice.2

Sugar itself doesn’t rot teeth, but rather, the acid that is produced when sugar mixes with certain bacteria in the mouth. Decay forms around the parts of the tooth where the plaque accumulates. The high acid from the drinks themselves can also have an erosive effect on the whole surface of the tooth. Sugary, acidic drinks are particularly damaging when they are sipped frequently throughout the day because they spend a prolonged amount of time washed over the teeth.

Instead of buying the 32 or 64 ounce bottles of sports drink, limit kids to a single 12 to16 ounce bottle. Encourage kids to consume as much water as they do sports drink. Drinking water will help them stay hydrated during outdoor activities and make sure any residual sports drink doesn’t linger on their teeth. Another option is to dilute the sports drink with water to lower the concentration of acidity and sugar. If your kids find water boring, consider adding slices of orange, lemon or cucumber to make it more appealing. Interestingly enough, recent studies suggest that low-fat chocolate milk may be as good as a sports drink at promoting recovery between workouts.3

1 Harvard School of Public Health. How Sweet Is It? Accessed June 2012.http://www.hsph.harvard.edu/nutritionsource/healthy-drinks/how-sweet-is-it/index.html

2 University of Iowa College of Dentistry. Acidic Beverages Increase the Risk of In Vitro Tooth Erosion. Accessed June 2012. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2516950/

3 Spaccarotella KJ, Andzel WD.  Building a beverage for recovery from endurance activity: a review. J Strength Cond Res. 2011 Nov;25(11):3198-204.

Ozone in Dentistry

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One simmering controversy in dentistry has to do with ozone, but nothing to do with the layer that surrounds our planet. Rather, it’s a new and controversial alternative form of dental treatment. Some dentists are convinced that delivering ozone gas, a powerful naturally-occurring oxidant, into a decaying tooth can halt or even reverse the process altogether.

Dental caries, otherwise known as cavities, are bacterial infections that erode and destroy tooth structure due to the acid that is produced every time food is consumed. Ozone is toxic to certain bacteria, so the theory goes that injecting ozone into a carious lesion might reduce the number of cariogenic bacteria.

Ozone (O3) is formed from oxygen (O2) splitting into two oxygen molecules (O1) under various conditions, including an electrical discharge like a lightning strike. Then these single molecules collide with O2 oxygen to form ozone. If you have ever noticed a different scent in the air after a lightning storm, it is likely that you are smelling the higher concentration of ozone. In fact, the word ozone is derived from the Greek word “ozein,” which means “to smell.”

Ozone can exist in gas, liquid or solid form, and has long been used in industrial and medical applications. The extra oxygen molecule on ozone is loosely bound, excited and readily available to jump off, attach to, and oxidize other molecules. This oxidation process can destroy a variety of microorganisms. Ozone-based sterilizers are often used for some instrument and equipment sterilizing applications in hospitals. Ozone is also used by some municipal water systems to kill bacteria in the water.

Proponents argue that dentists can use ozone to start a process that removes bacterial waste products, halts dental cavities and begins a process of repair through accelerated remineralization of damaged teeth. According to them, bacteria, viruses and fungi lack antioxidant enzymes in their cell membranes, so those harmful antibodies are destroyed when ozone ruptures their cell membrane. Healthy cells, on the other hand, are unaffected by therapeutic levels of ozone because they have antioxidant enzymes in their cell membranes.1 Those in the dental community in favor of ozone therapy say dentists are utilizing it for periodontal therapy, root canal treatment, tooth sensitivity, canker sores, cold sores and bone infections, among other things.1

It’s an interesting idea and a pretty straightforward concept. Any treatment that not only saves or protects a tooth from decay but avoid the use of needles and anesthetic would be a welcome addition to a dentist’s treatment options. Unfortunately, despite some promising evidence of effectiveness against decay-causing bacteria in laboratory studies, the current evidence base for ozone therapy in dentistry is insufficient to conclude that it is an effective or cost-effective addition to the management and treatment of caries. At this time, the U.S. Food and Drug Administration (FDA), which assesses new drugs and medical devices for safety and efficacy and regulates their use and marketing in the U.S., has not cleared any ozone-generating devices for use in dentistry.

Ultimately, not enough is known as this time and some high quality clinical trials research is necessary. Biased research and inconsistent outcome measures have made researchers unable to confidently conclude that the application of ozone gas to the surface of decayed teeth halts or reverses the decay process. Therefore, at this time, ozone therapy for treatment the prevention and control of tooth decay is not considered a viable alternative to current treatment methods in the world of evidence-based dentistry.2

1 American College of Integrated Medicine and Dentistry. http://www.ozonefordentistry.com/DentalO.html Accessed July 10.

2 National Center for Biotechnology Information. Ozone Therapy for the Treatment of Dental Caries. http://www.ncbi.nlm.nih.gov/pubmed/15266519 Accessed July 10.

3 Rickard GD, Richardson RJ, Johnson TM, McColl DC, Hooper L . Ozone therapy for the treatment of dental caries.  Cochrane review.   2008 http://summaries.cochrane.org/CD004153/ozone-therapy-for-the-treatment-of-dental-caries#sthash.qfFibqsE.dpuf

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