Start brushing as soon as your baby’s first tooth breaks through the gum. That may happen around six months, but earlier or later can still be normal. The first brushings may last only a few seconds; the immediate goal is gentle cleaning and a calm routine that becomes more thorough with practice.
What to do before the first tooth appears
You do not need to brush toothless gums, but wiping them gently with a clean, damp cloth can remove milk residue and familiarise your baby with mouth care. Do not rub hard, attempt to cut the gum or use teething gels without professional advice. Once a tooth appears, move to a baby toothbrush.
The first-tooth routine
Brush
Choose a child-sized brush with a small head and soft bristles. Replace it when bristles fray or after roughly three months.
Timing
Brush twice daily—last thing before sleep and at one other reliable time. After the night brush, offer only plain water.
Amount
Use only a rice-grain smear of fluoride toothpaste under age three, then a pea-sized amount from three to six.
Adult help
An adult should do the brushing for babies and toddlers and continue helping until the child can clean every surface reliably.
Should babies use fluoride toothpaste?
Yes, widely used dental guidance recommends a tiny amount of fluoride toothpaste from the first tooth because fluoride strengthens enamel and helps prevent decay. Check the fluoride concentration on the label and ask a dentist which product is appropriate where you live; local water fluoride levels and a child’s cavity risk can affect advice.
Keep toothpaste out of reach and place it on the brush yourself. A smear means a thin rice-grain-sized film, not a strip covering the bristles. Encourage spitting as the child develops the skill; do not ask them to rinse, because rinsing washes away the fluoride left on the teeth.
How to brush baby teeth step by step
- Sit the baby on your lap with their head supported against your chest, or stand behind an older child in front of a mirror.
- Lift the lip so you can see the gumline, including the upper front teeth.
- Use small gentle circles on the outside, inside and chewing surfaces.
- Brush for up to two minutes as more teeth appear; thorough coverage matters more than force.
- Let the child hold a second brush if it helps, then finish the cleaning yourself.
- Do not share toothbrushes or lick the brush to “clean” it.
What if my baby hates toothbrushing?
Resistance is common. Choose a moment when the child is not exhausted or hungry, sing the same short song, let them choose between two brushes and keep the routine predictable. A mirror or brushing alongside a parent can help. Stay gentle but consistent; skipping for many nights makes the routine harder to establish.
Try a different position if you cannot see the teeth. For a wriggly toddler, two adults can cooperate calmly—one comforts and supports while the other brushes. Stop and seek dental advice if brushing causes persistent bleeding, severe pain or distress that seems linked to a sore tooth rather than ordinary protest.
When should the first dental visit happen?
Arrange a dental visit by the first birthday or within six months of the first tooth appearing. Early visits let the dentist check tooth development, feeding and brushing, assess cavity risk and make the clinic feel familiar before there is pain. Go earlier for a white, brown or black spot, a chipped tooth, swelling, injury or feeding-related mouth concern.
Daily habits that protect baby teeth
- Avoid putting a baby to sleep with a bottle containing milk, formula, juice or a sweet drink.
- Once teeth are brushed at bedtime, give only plain water.
- Keep sweet food and drinks to mealtimes instead of repeated sipping or grazing.
- Do not dip a dummy in honey or sugar; honey is also unsafe before 12 months because of infant botulism risk.
- Begin cleaning between teeth when adjacent teeth touch, using floss or a dentist-recommended tool.
- Ask about fluoride varnish and recall frequency based on your child’s individual risk.
Frequently asked questions
Do I wait until several teeth appear?
No. Start when the first tooth breaks through and build the twice-daily routine from there.
Can I use only water?
Current dental guidance generally recommends a tiny smear of fluoride toothpaste from the first tooth. Ask your dentist about the appropriate fluoride strength locally.
Is a finger brush enough?
It can help a baby get used to mouth care, but a small soft-bristled toothbrush is usually better for cleaning erupted teeth effectively.
What if my baby swallows toothpaste?
Young children often swallow a little, which is why the amount must be tiny and an adult should control the tube. Contact a clinician or poison service after a large ingestion.
When can a child brush alone?
Children can practise early, but adults should finish or closely supervise until they have the dexterity to clean thoroughly—often around age seven or later.
Should I replace the brush after illness?
Replace it when bristles are worn, contaminated or the brush has been shared. Routine replacement is usually about every three months.
Reliable resources
- NHS: Baby and toddler tooth care
- American Academy of Pediatric Dentistry: policies and recommendations
This article provides general oral-health information and does not replace personalised advice or treatment from a dentist or doctor.
