Lesson 4: What is a Cavity?
A cavity (also called a dental carie) is a hole that forms in your tooth when it starts to decay. Over time, the hole can grow larger, become very sensitive, and even cause headaches!
Why Do Cavities Occur?
Cavities are the reason brushing and flossing are so important! Germs naturally build up in our mouths throughout the day, especially when we eat sugary foods. These germs form a sticky layer called plaque that clings to our teeth and damages the enamel. As the plaque eats away at the enamel, a cavity begins to form.
What Should You Do If You Get a Cavity?
The best way to prevent cavities is by brushing twice a day and flossing regularly. But if you do get a cavity, it’s important to visit the dentist.
Without treatment, the plaque can continue breaking down your tooth, reaching all the way to the nerve—ouch!
At the dentist, they’ll examine your teeth and, if they find a cavity, they’ll repair it by filling the hole with a filling. Afterward, you can go right back to enjoying your favorite foods—just don’t forget to keep brushing and flossing to keep your teeth healthy!