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Caring for Your Child's Teeth

It's never too early for good dental care. With good oral healthcare, your child can grow up cavity-free. Start by caring for your baby's gums and teeth. As they grow, teach your child the best possible tooth care. Don't forget that healthy teeth and gums require regular visits to the dentist.


Food and bacteria form a sticky substance called plaque on teeth. Bacteria in the plaque make acid that eats away at the tooth's hard coating (the enamel). The enamel becomes porous as tiny holes appear, allowing bacteria to enter. This causes tooth decay. Brushing stops plaque from building up. Begin cleaning your baby's gums a few days after birth. At first, use water and a piece of cotton gauze. As teeth come in, use a small toothbrush and a tiny grain-sized or rice-sized amount of fluoride toothpaste. Only use a tiny amount because children tend to swallow the toothpaste. A training toothpaste (nonfluoridated) can also be used at this stage. Talk with your dentist or healthcare provider for advice on using a fluoride supplement, such as drops or tablets. When your child is old enough to brush on their own, watch to be sure it's done right.

Father brushing baby's teeth.


Flossing removes bacteria and plaque from between the teeth and under the gums. Floss your child's teeth daily. When the child is old enough, a floss holder can help them floss.


Fluoride makes tooth enamel stronger. This helps prevent cavities. Find out if your community's water has fluoride added to it. If not, ask your dentist if your child should be given fluoride supplements. Your dentist may also apply fluoride to your child's adult teeth at regular checkups.


Sealants are a safe, painless, and low-cost way to help protect your child's back teeth from decay. A thin plastic coating is bonded to the chewing surfaces of the molars and premolars. The sealant forms a hard shield that keeps food and bacteria from getting into the tiny grooves on the surface of the teeth.

When to call the dentist

Keep an eye on the following:

  • Tooth decay. Never let your child sleep with a bottle. Bottle liquids (even milk) that sit in the mouth can quickly cause tooth decay. Don't let your child drink or snack without brushing afterward.

  • Thumb sucking and pacifiers. Sucking on a thumb or pacifier is common for a baby. But if either habit continues past age 3 or 4, it may lead to tooth or jaw problems. If using a pacifier, an orthopedic pacifier is best for the teeth and jaws.

Call the dentist for any of the following:

  • Starting around age 1, your child should have regular dental checkups every 6 months.

  • Talk with your dentist if baby or adult teeth are crooked or fail to come in.

  • Call the dentist if you see brown or black spots on your child's teeth.

  • If a tooth is knocked out, get emergency dental care. Don't wash the tooth. Put it in milk until it can be put back in place.

Online Medical Reviewer: Dan Brennan MD
Online Medical Reviewer: Jessica Gotwals RN BSN MPH
Online Medical Reviewer: Michael Kapner MD
Date Last Reviewed: 8/1/2022
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