How to Teach Your Child to Brush Their Teeth

When should brushing start?

Start brushing when the first baby tooth comes through. Use a small soft toothbrush with fluoride toothpaste. Brush twice daily for about two minutes each time. Make bedtime one brushing time, then brush once earlier.

Young children need parent help while hand control improves. Let your child try, then clean the areas they miss. That approach builds skill while every tooth still gets cleaned.

A parent brushing a young child’s teeth while supporting the chin

How much fluoride toothpaste should a child use?

Before age three, use a grain of rice amount. From ages three through six, use a pea sized amount.

Age	Toothpaste amount	Parent job
First tooth to under three	Grain of rice amount	Parent brushes
Three through six	Pea sized amount	Parent brushes or finishes
Seven and older	Follow product and dental advice	Parent checks brushing

Put toothpaste on the brush while your child is young. Watch closely and teach your child to spit afterward. Small amounts reduce how much toothpaste young children may swallow. Store the tube beyond the reach of small children.

Check the fluoride level printed on the toothpaste label. Regional advice differs across countries and product types. Ask your dentist when you are unsure.

How do I clean every tooth properly?

Use the same order each time around the mouth. Moving in one direction reduces missed areas during brushing.

Put the correct toothpaste amount onto a soft toothbrush.

Brush outside surfaces with small circles near the gums.

Brush inside surfaces gently, reaching every front and back tooth.

Clean chewing surfaces with short back and forth movements.

Spend extra time reaching molars at the back.

Continue brushing until about two minutes have passed.

Ask your child to spit out the toothpaste afterward.

Skip rinsing with water straight after brushing ends. Water can wash protective fluoride from the teeth. Use gentle movements and avoid hard scrubbing.

A parent standing behind a child at the sink, guiding brushing with a mirror

Which position helps me reach the back teeth?

Place younger children across your lap, facing away from you. For taller children, position yourself behind them and support their head. Use a mirror where both of you can see. From behind, you can reach back teeth more easily.

For example, let your child brush the front teeth first. Then check the molars and inside surfaces together. Your child gets practice while you finish harder areas.

What if my child refuses to brush?

A child may refuse because of taste, touch, sound, or timing. Watch what happens just before your child pulls away. Timing and home routines can change how brushing goes. Research covering 68 studies found many different parent and child barriers.

If bedtime causes arguments, move the second brush earlier. If mint tastes strong, try a mild fluoride toothpaste. If foam bothers your child, try low foam fluoride toothpaste. For example, offer two mild flavours before brushing starts.

Call your dentist if brushing suddenly hurts your child. Look for swelling, tooth damage, or pain while eating. Pain can make a child avoid the toothbrush completely.

What if taste, foam, sound, or touch causes problems?

Some children react strongly to flavour, foam, vibration, or touch. Autistic children may need smaller changes across several brushing attempts. Try a softer toothbrush or flavour free fluoride toothpaste.

Try another room if the bathroom makes brushing harder. Start with a few seconds when your child accepts only that. Add a little more brushing during later attempts. Ask the dental team for extra help when needed.

A child brushing their own teeth while a parent watches and checks

When can a child brush alone?

Many children can start brushing alone around age seven. Adult checks still help while technique and timing improve. Watch one full brushing time before reducing your help.

Your child should reach every tooth for about two minutes. Continue helping when back or inside surfaces get missed. Some children need parent checks for several more years.

When should flossing start?

Start flossing when two teeth begin touching each other. Adults should floss younger children during the early years. Many children manage floss around ages ten or eleven.

Slide floss gently between teeth and along each side. If flossing hurts repeatedly, ask your dentist for help. A dentist can show floss picks or another cleaning option.

Is a manual or electric toothbrush better?

Both manual and electric toothbrushes can clean young teeth well. Choose a small head with soft bristles for younger children.

An electric brush may help children with limited hand control. Use whichever brush your child accepts and uses well. Cost alone does not make one brush better.

When should parents replace a toothbrush?

Replace a toothbrush every three to four months. Change it sooner when bristles look frayed or bent.

After brushing, rinse the toothbrush with tap water. Store it upright where air can reach the bristles. Each family member needs a separate toothbrush.

Most children can use the same brush after illness. A cold or flu alone rarely needs toothbrush replacement.

Which food and drink choices help protect teeth?

Frequent sugary snacks and drinks can raise cavity risk. Offer sweet foods with meals and limit repeated snacks. Choose water or plain milk between meals.

If cavities return, ask your dentist about extra fluoride protection. A dentist may recommend fluoride varnish for higher cavity risk.

When should a child see a dentist?

Book the first dental visit when the first tooth appears. Arrange the appointment before the first birthday. Early visits help dentists spot problems before pain begins.

See a dentist when pain, swelling, or tooth damage appears. Repeated bleeding or brushing pain also needs dental advice. Severe swelling with breathing trouble needs urgent medical help.

Bring brushing questions when something remains difficult at home. Let your child practise, then check every tooth afterward. As hand control improves, your child can do more alone.

Evidence sources

Last updated Aug 27, 2026

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