Children do not have the manual dexterity to brush their own teeth effectively until around seven or eight. Until then, a child brushing alone is practising the habit, not cleaning the teeth — an adult needs to do it for them, or go over it afterwards.
Most parents stop helping several years too early, and the six-year molars at the back are usually the first casualty.
Age by age
Before teeth appear
Wipe the gums with a soft damp cloth once a day. It is not about cleaning so much as making mouth care an unremarkable part of the routine before there is anything to resist.
From the first tooth to around three
You do all the brushing. Twice a day, with an amount of fluoride toothpaste appropriate to their age — ask us how much for your child, and apply it yourself rather than letting them squeeze the tube.
Position matters more than technique at this age. Sitting behind the child with their head resting back against you, or laying them on your lap or a changing mat, gives you a clear view and control. Standing in front of a squirming toddler does not.
Three to six
Let them have a go first — it matters for the habit and for their sense of it being theirs — then take over and do it properly. Frame it as “your turn, then my turn” rather than as a correction.
Start teaching spitting out, and do not rinse with water afterwards. That one change keeps the fluoride on the teeth and measurably increases the benefit.
Six to eight
Increasing independence, but still check and go over afterwards, particularly last thing at night and particularly at the back. This is when the first permanent molars arrive at the very back, and they are the teeth most commonly decayed in childhood — see dental sealants explained.
Eight and over
Generally capable of brushing alone, but supervision does not mean nothing. Check occasionally, and keep an eye on whether the night brush is actually happening.
How to brush effectively
- Two minutes, twice a day, one of them last thing at night after which nothing is eaten or drunk except water.
- A soft, small-headed brush. Small enough to reach behind the back teeth.
- Angle the bristles towards the gum line at about 45 degrees, with small gentle movements. Scrubbing hard cleans no better and damages gum.
- Cover every surface: outer, inner, and the biting surfaces. The inner surfaces of the lower front teeth and the outer surfaces of the upper back teeth are the two places nearly everyone misses.
- Reach the very back. Behind the last tooth is a real place and it is almost always missed.
- Spit, do not rinse.
- Start flossing where teeth touch — usually the back teeth first, often around ages two to six. Once teeth are in contact, a brush cannot get between them.
Getting through the resistance
Almost every toddler goes through a phase of refusing. Consistency matters more than perfection, and a brief, slightly imperfect brush every night beats a battle followed by skipped nights.
Things that help:
- Same time, same place, every day. Predictability reduces negotiation.
- Give them a brush of their own to hold while you use another. Occupied hands stop grabbing.
- Let them brush your teeth while you brush theirs.
- A timer, a song, or an app — anything that makes the two minutes an external fact rather than your decision.
- Let them choose the brush. Colour and character are worth more leverage than they should be.
- Brush your own teeth alongside them. Children copy far more readily than they obey.
- A sticker chart for younger children — non-food rewards only.
- Do not use it as a threat or a punishment, and do not attach it to anything negative. It should be as unremarkable as putting on shoes.
If a child is genuinely distressed rather than simply objecting, or resists having a particular area touched, mention it — occasionally it indicates a sore tooth rather than defiance.
Common mistakes
Too much toothpaste. More is not better, and it makes swallowing more likely — see fluoride and children’s teeth.
Rinsing afterwards. Washes the fluoride straight off.
Handing over too early. The most common and most costly one.
Brushing before breakfast only. The night brush is the important one.
Brushing straight after something acidic. Wait around half an hour after fruit juice or fizzy drinks.
Hard brushes and hard scrubbing. Damages gums without cleaning better.
Frequently asked questions
Electric or manual?
Either works if the technique is right. Many children find an electric brush easier and more engaging, and the built-in timer helps.
When should flossing start?
As soon as two teeth are touching, which is often earlier than parents expect. Floss sticks are easier in a small mouth.
Should my child use mouthwash?
Generally not before around seven, and only where recommended. It is not a substitute for brushing.
How do I know I am doing it well enough?
Ask at your next appointment to be shown on your own child’s teeth. Disclosing tablets, which stain plaque, make it obvious — ask whether they would suit your child.
They brush but still get cavities.
Usually frequency of sugar rather than brushing — see preventing early childhood decay.
Ask to be shown
Two minutes at a check-up being shown where you are missing is worth more than any article. See our pediatric dentistry page.
To arrange a consultation at our clinic on Abbas El-Akkad in Nasr City, call +20 101 969 7597 or message us on WhatsApp.
