Is Fluoride Good for Children’s Teeth? - First Things First
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When you hear the word fluoride, you probably think about toothpaste. But what exactly is fluoride? What does it do? And as the parent of a little one, is fluoride good for children’s teeth?

What is fluoride?

Fluoride is a naturally-occurring mineral. In addition to rocks, soil and water, fluoride is also found naturally in our bones and teeth.

Why fluoride is good for children’s teeth.

Fluoride is nature’s cavity fighter. Science has shown that fluoride makes the surface of teeth stronger, and that helps prevent tooth decay.

The outer layer of teeth (enamel) is like a shield that protects teeth from acids that cause cavities. (These acids are produced when bacteria in your child’s mouth combine with the sugars they eat and drink.) Fluoride helps build up that outer shield. Even more amazingly, fluoride helps repair parts of the shield that may have been damaged. It also prevents the growth of bacteria that can cause cavities. For all these reasons, using fluoride is a powerful way to prevent tooth decay.

“Fluoride has consistently been proven effective at preventing tooth decay, which, when left untreated, can lead to pain, loss of teeth and serious infections.”

Where can you get fluoride to protect your child’s teeth?


Most toothpaste contains fluoride. (“With fluoride” is usually printed right on the tube, but you can also check the list of ingredients.) Brushing your child’s teeth with fluoride toothpaste is an important way you can keep them healthy and smiling. You can use toothpaste with fluoride in it as soon as your child’s first tooth appears. For infants, start with just a tiny smear of toothpaste, about the size of a grain of rice. Once your child is three, you can use a pea-sized amount of toothpaste.

Drinking Water

Most tap water has fluoride in it, whether naturally occurring or added by your town, city or tribe’s local public authority. About half of Arizona has fluoridated water. (Click here to find out if your community has fluoridated water.) Fluoride can also be found in some, but not all bottled water.

In addition to getting the benefits of fluoride, having your child drink more tap water instead of juice, soda, chocolate milk and other sugary drinks is another way to help prevent cavities.

Your Dentist

Talk to your child’s dentist or oral health provider about how much fluoride your child is getting. (Click here if you need help finding a dentist for your child in your Arizona community.) They may apply a fluoride varnish to protect your child’s teeth or recommend fluoride supplements. Only use supplements if your child’s dentist prescribes it.