Brushing basics

How to Brush a Toddler's Teeth (and How Technique Changes with Age)

To brush a toddler's teeth, lay or sit your child so you can see into their mouth, use a soft child-sized brush with a smear of fluoride toothpaste, and clean every tooth surface and the gumline with small, gentle circles for about two minutes. Do this twice a day, including last thing at night. You will brush for them at first, then gradually hand over while still supervising until around age 7 or 8.

By the Molar Squad team at Socket Science, a small studio run by a dentistUpdated October 29, 20266 min read

How to Brush a Toddler's Teeth (and How Technique Changes with Age)

Key takeaways

Start brushing as soon as the first baby tooth appears, usually around 6 months.
Lying your toddler down, with their head supported in your lap, often gives you the clearest view.
Use small, gentle circles on all sides of each tooth and along the gums, twice a day for about two minutes.
Children usually need hands-on help or close supervision with brushing until about 7 or 8 years old.
Flossing can begin as soon as two teeth touch, with an adult doing it at first.

When should you start brushing your baby's teeth?

Start brushing as soon as the first baby tooth breaks through the gum. For most babies that is around 6 months, though it can be earlier or later. Before teeth arrive, you can gently wipe the gums with a soft, clean cloth.

Use a soft-bristled brush with a small head made for babies or toddlers, and a tiny smear of fluoride toothpaste. Brushing twice a day from the start makes it a normal part of the day rather than a new battle later.

What is the best position to brush a toddler's teeth?

The aim is simple: you need to see inside the mouth and keep your child's head steady. The American Academy of Pediatrics notes that it is usually easiest for babies and toddlers to lie down for brushing. Try a changing mat, or lay your child on a soft carpet with their head resting in your lap.

As your child grows, you can switch to standing behind them in front of a mirror. Tilt their head back slightly against your body and brush from above, the way you would brush your own teeth. A mirror also lets your child see where the brush is cleaning, which helps when they start to take over.

Lying down: head in your lap, you sitting above them, so you can see the top and bottom teeth.
Sitting on your knee: child facing away from you, head resting back against your chest.
Standing at a mirror: you behind your child, one hand cupping their chin to steady the head.

How to brush a toddler's teeth, step by step

Once you have a position that works, the technique is the same at every age. Go slowly and gently, and narrate what you are doing so your child knows what comes next.

Put a smear of fluoride toothpaste, about the size of a grain of rice, on a soft child-sized brush.
Hold the brush at an angle towards the gumline, about 45 degrees.
Use small, gentle circles on the outer surfaces of the top teeth, then the bottom teeth.
Brush the inner surfaces, behind the teeth, where plaque is easy to miss.
Clean the chewing surfaces of the back teeth, still using small, gentle movements.
Brush gently along the gums, aiming for about two minutes in total.
Let your child spit out the extra toothpaste if they can, but skip rinsing with water so the fluoride keeps working.

How technique changes from baby to school age

Your role shifts from doing all the brushing to coaching and checking. The overall method stays the same, but the amount of toothpaste, who holds the brush, and how closely you watch all change as your child grows.

Brushing by age (based on NHS and American Academy of Pediatrics guidance)
Age	Who brushes	Toothpaste	Tips
Baby (first tooth to 1)	You	Smear (rice-grain size)	Lying down; keep it short, gentle and calm.
Toddler (1 to 3)	You	Smear (rice-grain size)	Let them have a turn, then you brush properly.
Preschool (3 to 6)	Child, with your help	Pea-sized amount	Guide their hand so they feel the right movement; you do a final check.
School age (6 to 8+)	Child, supervised	Pea-sized amount	Watch that they reach every zone and brush for two minutes.

How long do kids need help brushing their teeth?

Longer than most parents expect. The American Academy of Pediatrics says children usually need help with brushing until they are about 8 years old. A handy rule of thumb is that a child who can tie their own shoelaces can usually brush on their own, but you should still supervise to make sure they brush for the full two minutes.

The NHS says children aged 7 and over should be able to brush their own teeth, but it is still a good idea to watch them. Many families keep a quick "parent check" at bedtime long after a child starts brushing alone.

When should kids start flossing?

The American Dental Association suggests adding flossing as soon as your child has two teeth that touch, because a toothbrush cannot reach between them. At first, an adult has to do this step. Children usually take over around age 10 or 11, when their hands are ready to hold floss or other cleaning tools.

Once a day is enough. Doing it at the same time each day, such as straight after the evening brush, helps it stick. If your child's gums bleed often, or you notice spots, discoloration or pain, talk to your dentist.

How Molar Squad helps with brushing your toddler's teeth

Good technique is easier when your child is relaxed and knows what comes next. Molar Squad, a toothbrushing habit app for children aged 3 to 10 made by a small studio run by a dentist, uses a 2-minute guided brushing timer that walks your child through the four zones of the mouth while germs pop off the teeth on screen.

For younger children, Little Mode is narrated with no reading and no losing, so it works even before your child can read. It is a tool to make the routine more fun, not a replacement for your help or for regular dentist visits.

A 2-minute guided timer that moves through the four zones of the mouth
Morning and evening streaks that earn stickers and heroes
Little Mode for ages 3 to 5: narrated, no reading and no losing
Parent reminders and a brushing calendar behind a parental gate

Questions parents ask

How do I brush my toddler's teeth when they won't open their mouth?

Try lying them down with their head in your lap, which gives you more control and a clearer view. Brush the front teeth first, then wait for a yawn, laugh or song to reach the back teeth. Keep it calm and quick rather than forcing it, and try again later if needed.

Should I brush my baby's gums before teeth come in?

Before the first tooth, you can gently wipe your baby's gums with a soft, clean cloth. Once the first tooth appears, usually around 6 months, switch to a soft baby toothbrush with a smear of fluoride toothpaste.

At what age can my child brush their own teeth?

Children can start practising from around 3 with your help. The American Academy of Pediatrics says most need help until about 8, and the NHS says children aged 7 and over should be able to brush alone but should still be watched.

Should my child rinse after brushing?

No. Encourage your child to spit out the extra toothpaste but not to rinse with water, because rinsing washes away fluoride that is still protecting the teeth.

When should I take my toddler to the dentist?

In the US, the advice is by the first birthday or within six months of the first tooth. The NHS suggests going when the first milk teeth appear, or before 12 months. Talk to your dentist sooner if you notice pain, swelling or changes in your child's teeth.

Sources

This guide is based on the public health guidance below.

This guide is general information, not medical advice. If you are worried about your child's teeth, talk to your dentist or doctor.