Parents make countless decisions about their children’s health, and it is normal to have questions about the products your child uses every day. One question our pediatric dental team often hears is, “Is fluoride safe for kids?”
For most children, the answer is yes. When used in the recommended amount, fluoride is a safe and effective way to strengthen tooth enamel and help prevent cavities. The key is choosing age-appropriate fluoride care and supervising young children while they brush.
What Is Fluoride?
Fluoride is a naturally occurring mineral found in water, soil and some foods. It is also added to many toothpastes and some community water supplies because of its ability to protect teeth.
Every day, bacteria in the mouth use sugars from foods and drinks to produce acids. These acids remove minerals from tooth enamel and can eventually lead to tooth decay. Fluoride helps replace minerals in weakened enamel, makes teeth more resistant to acid and may even help reverse the earliest stages of tooth decay.
Why Is Fluoride Important for Children’s Teeth?
Children can be especially vulnerable to cavities as they learn to brush effectively and develop their eating habits. Fluoride provides an extra layer of protection for both baby teeth and developing permanent teeth.
Healthy baby teeth help children chew, speak clearly and hold space for their permanent teeth. Preventing cavities early can also help children avoid dental pain, infection and more extensive treatment.
When Should My Child Start Using Fluoride Toothpaste?
According to the American Academy of Pediatrics, children should begin using fluoride toothpaste as soon as their first tooth appears. Parents should dispense the toothpaste and help or supervise brushing.
Younger than age 3: Use a smear of fluoride toothpaste, approximately the size of a grain of rice.
Ages 3 to 6: Use a pea-sized amount of fluoride toothpaste.
All ages: Brush twice a day, encourage your child to spit out the toothpaste and keep toothpaste out of reach when it is not being used.
Young children need help brushing thoroughly and using the correct amount of toothpaste. If you are unsure what is appropriate for your child, ask one of our pediatric dentists for personalized recommendations.
What Is Dental Fluorosis?
Dental fluorosis is a change in the appearance of tooth enamel that can occur when a young child regularly consumes more fluoride than recommended while permanent teeth are still developing beneath the gums. Mild fluorosis may appear as faint white lines, spots or streaks.
In most cases, dental fluorosis is mild and does not affect the health, strength or function of the teeth. The markings can be so subtle that they are only noticed by a dentist during an examination.
Fluorosis only develops while teeth are forming beneath the gums. A tooth cannot develop fluorosis after it has erupted. Once permanent teeth have finished developing, usually around age 8, the risk of developing dental fluorosis is greatly reduced.
How Can Parents Help Prevent Dental Fluorosis?
Fluorosis is associated with swallowing too much fluoride over time, not with properly using an age-appropriate amount of fluoride toothpaste. Parents can reduce the risk by:
Placing the correct amount of toothpaste on the toothbrush
Supervising brushing and teaching children to spit out toothpaste
Keeping toothpaste, mouth rinses and fluoride supplements out of reach
Talking with a pediatric dentist before using fluoride supplements or mouth rinses
Checking the fluoride level in well water or noncommunity water sources when advised
What If My Child Swallows Fluoride Toothpaste?
Swallowing the small rice-sized or pea-sized amount used during routine brushing is generally unlikely to cause harm. Continue supervising your child, encourage spitting and use only the recommended amount.
Swallowing a larger amount can cause nausea, vomiting, stomach pain or diarrhea. If your child eats a significant amount of toothpaste or you are unsure how much was swallowed, call Poison Control at 1-800-222-1222 for guidance. Seek emergency care immediately if your child has severe symptoms, trouble breathing, a seizure or becomes difficult to wake.
Is Fluoridated Water Safe for Children?
Community water fluoridation adjusts fluoride to a level that helps prevent tooth decay while minimizing the risk of fluorosis. Fluoridated tap water can support cavity prevention for children and adults.
Water is also a more tooth-friendly everyday drink than juice, soda and sports drinks, which may contain sugar and acids that contribute to cavities and enamel erosion. If your family uses well water, bottled water or a filtration system, ask your pediatric dentist whether your child may need additional fluoride based on their age, cavity risk and primary water source.
Does My Child Need Professional Fluoride Treatment?
Fluoride varnish is a concentrated topical treatment applied to the teeth by a dental or medical professional. It can strengthen enamel and help prevent or slow early tooth decay. The recommended timing and frequency depend on your child’s age, oral health and individual cavity risk.
Children with a history of cavities, weakened enamel, orthodontic appliances, dry mouth or other risk factors may benefit from additional fluoride protection. Your pediatric dentist can explain which preventive treatments are appropriate for your child.
Frequently Asked Questions About Fluoride for Kids
Is fluoride safe for babies?
Yes, an age-appropriate amount of fluoride toothpaste is considered safe once a baby’s first tooth appears. Use only a rice-sized smear and have an adult perform the brushing.
Can fluoride reverse a cavity?
Fluoride may help remineralize enamel during the earliest stage of tooth decay, before a physical hole has formed. A cavity that has progressed further may still require dental treatment.
Should my child use fluoride mouthwash?
Young children may swallow mouthwash and should not use it unless a dentist or physician specifically recommends it. Ask your pediatric dentist whether a fluoride rinse is appropriate.
Does my child need fluoride if our water is fluoridated?
Yes. Drinking fluoridated water and brushing twice daily with the correct amount of fluoride toothpaste work together to protect teeth. Professional fluoride treatment may also be recommended based on your child’s cavity risk.
Build a Stronger Super Smile With Fluoride
Fluoride is a safe and valuable part of children’s cavity prevention when it is used correctly. Starting with the first tooth, brush twice daily with an age-appropriate amount of fluoride toothpaste, supervise young children and ask your child’s dentist about any additional fluoride needs.
Families in Cheyenne and Laramie, Wyoming, and Scottsbluff, Nebraska, can count on Pediatric Dentistry of Wyoming & Nebraska for personalized preventive care. Request an appointment at the location nearest you and let our team help your child build a healthy, confident Super Smile.