What is a cavity?

Dr. Tang and our team at Just 4 Kids Pediatric Dentistry know one word parents and kids don’t want to hear is "cavity!" But as much as people dread hearing the news that they have a cavity, we thought it would be important to discuss what a cavity is, how people get cavities, and how to avoid them altogether.

A cavity is a hole that develops in a tooth when the tooth begins to decay. Tooth decay can affect both the enamel (the outer coating of the tooth) and the dentin (the inner layer of the tooth). It’s important to get a cavity filled as soon as it’s detected so that it does not grow bigger. The prevalence of dental decay in the United States in children aged two to five has increased 15.2%, according to the Center for Disease Control and Prevention.

So, what causes a cavity? A cavity is caused by plaque, a sticky substance that forms on the tooth as a result of germ and bacteria build-up. Plaque is acidic, and as it clings to your teeth, the acids eat away the outside of the tooth (also called the enamel) and a hole is formed.

While cavities can be repaired, there are a few simple steps you can take to prevent cavities at home:

  • Brush your teeth with fluoride toothpaste at least twice daily.
  • Gently brush the gums to keep them healthy. When choosing a toothbrush it is recommended to use soft bristles.
  • Floss your teeth at least once a day to remove plaque and food that may be caught between the teeth where your toothbrush can’t reach.
  • Limit the amount of soda and sugary treats you eat and drink.

To learn more about cavity prevention, please give us a call or ask us during your next visit!

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