When Should My Child Start Brushing and Flossing?

November 4, 2025

Kid brushing teeth.

Good oral hygiene habits start early and helping your child learn how to care for their teeth sets the stage for a lifetime of healthy smiles. Many parents wonder when their little one should begin brushing or whether flossing is necessary for baby teeth. The truth is, the earlier your child becomes familiar with daily oral care, the easier it will be for them to maintain these habits as they grow. Here’s a helpful guide to when and how to get your child started.

Brushing Starts Earlier Than You Might Think

You can begin caring for your child’s mouth even before their first tooth appears. Gently wiping their gums with a clean, damp cloth after feedings helps remove bacteria and gets them used to oral cleaning. Once the first tooth erupts—usually around 6 months—it’s time to start brushing.

Use a soft-bristled infant toothbrush and a smear of fluoride toothpaste about the size of a grain of rice. Brush twice a day, especially before bedtime. Children don’t yet have the coordination to brush effectively on their own, so parents should take the lead until around age 6 or 7, when kids typically develop the dexterity needed for thorough brushing.

As more teeth come in, continue using a small amount of toothpaste. By age 3, you can increase the amount to a pea-sized dab. Make brushing fun by singing songs, reading tooth-themed books, or letting your child choose their toothbrush color or design.

Flossing Should Begin as Soon as Teeth Touch

Flossing is often overlooked, but it’s an essential part of preventing cavities—especially in kids. As soon as two baby teeth touch each other, plaque can hide between them, and flossing becomes necessary. This spacing usually happens around ages 2 to 3, though every child is different.

Parents should do the flossing at first, using either traditional floss or floss picks designed for kids. Aim to floss once a day. Although baby teeth eventually fall out, decay in those teeth can cause pain, infection, and even issues with spacing for future adult teeth.

Building Lifelong Habits

The goal is to create a positive, consistent routine. Encourage your child, celebrate small victories, and model good oral hygiene yourself. Regular dental checkups starting around age 1 also help reinforce healthy habits and catch issues early.

By starting brushing and flossing at the right times, you give your child a strong foundation for lifelong oral health.

About the Practice

Are you looking for a trusted provider of preventive dental care for your little one? Turn to our team at Joliet Pediatric Dentistry for all your child’s unique needs. With an experienced board-certified pediatric dentist on staff and a cozy and welcoming office and team, you’ll enjoy every minute you’re at our practice. Also, we accept and maximize dental insurance benefits to keep your hard-earned money in your pocket where it belongs. Ready to get started? Go to our website to schedule an appointment or call (815) 729-2277.Top of Form