Children's dental guide
5 min readBrushing children's teeth
Children usually need help with brushing. UK guidance supports fluoride toothpaste, small age-appropriate amounts and parent or carer supervision.
Brushing children's teeth is a shared task while children learn. The right support depends on age, dexterity, confidence and dental risk.
UK guidance gives practical amounts of fluoride toothpaste for younger children. A dentist may advise different toothpaste strength or routines for a child's individual risk.
At a glance
Support brushing
Adult help
- Children often need an adult to brush or supervise.
- Brush last thing at night and on at least one other occasion.
- Encourage spitting after brushing rather than rinsing straight away.
Use the right amount
Fluoride toothpaste
- Under 3s usually need only a smear of toothpaste.
- Children aged 3 to 6 usually need a pea-sized amount.
- Check the fluoride level on the toothpaste and follow dental advice if it differs.
Ask for help
Concerns
- Ask a dentist if brushing is painful or bleeding continues.
- Seek advice if you see white, brown or black marks on teeth.
- Get prompt help for pain, swelling or dental injury.
Contents
Why supervised brushing matters
Children may miss tooth surfaces, use too much toothpaste or rinse away fluoride. Calm adult support helps brushing become a routine without making it feel like a punishment.
Possible causes or contributing factors
- Developing coordination and attention can make brushing difficult.
- Back teeth, gumlines and newly erupted teeth can be missed.
- Diet, fluoride exposure and dental history affect a child's decay risk.
What you can do now
- Use a small toothbrush and fluoride toothpaste appropriate for the child's age and risk.
- Brush gently around every surface and along the gumline.
- Make brushing predictable with a routine, song or timer if that helps.
What not to do
- Do not let children eat or lick toothpaste from the tube.
- Do not shame a child if brushing is difficult.
- Do not stop brushing because gums bleed without asking for advice if it continues.
When to ask a dentist
- You are unsure which toothpaste strength or amount is right.
- Bleeding, soreness or bad breath continues despite brushing.
- You notice marks, holes, pain or sensitivity.
When prompt advice is needed
- A child has dental pain that affects eating or sleep.
- There is swelling, fever, trauma or a broken tooth.
- A child cannot brush because of pain or mouth injury.
What a dentist or relevant professional may assess or do
- Check for plaque, decay risk, gum inflammation and tooth development.
- Show brushing techniques adapted to the child.
- Discuss fluoride toothpaste, diet and review timing.
Frequently asked questions
How much toothpaste should a young child use?
NHS guidance says under 3s usually use a smear and children aged 3 to 6 usually use a pea-sized amount. A dentist may advise differently for individual risk.
Should children rinse after brushing?
NHS guidance advises spitting out after brushing and not rinsing straight away so fluoride stays on the teeth longer.
When can children brush alone?
Children develop at different rates. Many need brushing help or supervision for several years, especially to clean all surfaces well.
Need more prevention guidance?
Browse Odenta oral care guides and ask a dentist or dental professional for advice tailored to your child.
Browse oral care guidesOfficial sources
These links open external official guidance pages for further help.
Content reviewed by Dr Majid Saeed · 13 July 2026
References used for this guide are listed above.
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