From the very first tooth, you brush — with a fluoride toothpaste, in the right dose: a grain of rice before age 3, a pea from 3 to 6. What matters isn't the brand, but the amount, learning to spit, and staying behind the child until around 7-8. Your dentist adjusts the rest.
Choosing a toothpaste for your child raises more questions than you'd think: from when? with or without fluoride? how much to use? and that very real fear of them swallowing it. The good news is that the rules are simple and fit into a few markers. The less good news is that they circulate poorly — here's how to see clearly, without ever replacing the advice of the professional who follows your child.
What age to start
The recommendation has shifted: you no longer wait «for all the teeth to be there». From the appearance of the first tooth, usually around 6 months, you clean it twice a day with a small soft-headed brush and a smear of fluoride toothpaste. Before the first tooth, a damp cloth on the gums is enough. The point isn't to make anything shine: it's to install the habit and protect the new enamel as soon as it's there.
The right amount of fluoride, by age
This is the point that really matters, because fluoride protects against cavities but must be dosed for a young child who still swallows. The usual markers:
- Before age 3: a smear, the equivalent of a grain of rice, of fluoride toothpaste (around 1000 ppm, on the dentist's advice).
- From 3 to 6: the size of a pea.
- From age 6, when the child knows how to spit: you can move to a higher-fluoride toothpaste, always on the practitioner's advice.
The exact fluoride level varies by country and recommendation — we detail these differences in fluoride dosing by country, and the role of fluoride itself in what 1450 ppm fluoride is for. The golden rule: ask the dentist for the level suited to your child's age and cavity risk, rather than choosing off the shelf.
Learning not to swallow
This is the real reason for the small dose: a young child spits poorly and swallows part of their toothpaste. The «grain of rice» amount is precisely calculated to stay safe even if swallowed. You learn to spit gradually, through play, without forcing the rinse — in fact, a light film of toothpaste left after spitting extends fluoride's protective effect. The tube stays up high: the sweet taste of children's toothpastes makes them want to eat it.
Supervised brushing: until when?
A child's fine motor skills aren't mature before 7-8: until then, they can't reach every tooth surface alone. The right rhythm: they start, an adult finishes — especially the evening brush, the most important one. Little by little you loosen the reins, but a regular check stays useful well beyond. The habits that matter (don't scrub too hard, aim for the tooth-gum line) are the same as for grown-ups.
Taste, the number-one ally
A child brushes willingly if it doesn't put them off. The strong mint of adult toothpastes often stings little ones; a gentle, pleasant taste turns the chore into an accepted moment. It's the same principle as for us, described in a good-tasting toothpaste, a real lever for consistency: the best toothpaste is the one actually used, twice a day.
When to move to «grown-up» toothpaste
Around age 6, with the first permanent teeth arriving and a child who spits well, the switch to a standard fluoride toothpaste can happen — but it's the dentist who gives the green light and the right level. Careful: our toothpastes, like most on the market, are formulated for adults and older children, not for toddlers. For a baby or a child under 6, you need a toothpaste specifically suited to their age: don't transpose an adult tube without advice. And don't forget that sugar remains the number-one enemy of children's teeth, a topic we cover in why a sugar-free toothpaste matters.
Read also: Which toothpaste should you choose?
“Fluoride-free” toothpaste for a child: good idea?
The question comes up in every parent’s search, and the answer from health authorities is constant: fluoride is the only active ingredient with a proven effect against tooth decay in children, provided the amount is dosed by age. A “fluoride-free”, “organic” or “natural” toothpaste is not safer for a milk tooth; it is only less protective. The legitimate fear of swallowing is handled by the dose — a grain of rice, then a pea — and by learning to spit, not by removing the active ingredient. Our article on the role of fluoride explains the mechanism, and our fluoride versus hydroxyapatite comparison places the most studied alternative, whose evidence remains less extensive.
There is one case where “fluoride-free” is worth discussing: when the child already receives fluoride through other routes — fluoridated salt at home, highly fluoridated water, prescribed tablets — the dentist may want to avoid the cumulative dose to limit the risk of fluorosis, those white spots on permanent enamel. The dentist decides, with the family’s fluoride assessment; nobody else. If you still choose a fluoride-free toothpaste, do not skip the check-up: that is what makes up for what the tube no longer does. After the age of six, when the child spits well, an adult 1450 ppm toothpaste such as Classic Mint becomes possible on the practitioner’s advice.
Which toothbrush for a child: manual, electric or sonic?
Until the motion is learned, a manual brush with a small head and soft bristles does the whole job: it is the parent’s hand that counts, not the motor. Children’s electric and sonic brushes have two real assets, the two-minute timer and the fact that children find them fun — which lengthens a brushing often rushed in thirty seconds. On plaque itself, studies show a modest gain for electric over manual in the general population; in children, most of the benefit comes from duration and regularity. Our electric versus manual comparison details what the data say and do not say.
Three rules whatever the model: a head suited to the size of the mouth, soft bristles replaced every three months or as soon as they splay, and the parent “finishing” the brushing night after night until age seven or eight, because the dexterity to reach the back molars does not come before. Adult sonic models, such as the ones we offer, are designed for teenagers and adults: we do not sell a brush for young children, and we would rather say so than steer you towards a product that is not made for them.
Your questions about children's toothpaste
Does a baby need a «fluoride-free» toothpaste?
Current recommendations favour a fluoride toothpaste from the first tooth, but in a very small amount (grain of rice). Fluoride, well dosed, is the best shield against a young child's cavities. When in doubt, the paediatrician or dentist decides.
My child swallows their toothpaste — is that dangerous?
At the amount recommended for their age — grain of rice, then pea — swallowing the little toothpaste used isn't dangerous. That's precisely why the quantity is so small. Keep the tube out of reach so they don't eat more of it.
At what age can a child brush alone?
They can start early, for the habit, but an adult should take over the brushing until around 7-8, the time for their dexterity to catch up. The evening brush especially deserves an adult's hand.
In short
For a child, toothpaste comes down to three rules: start from the first tooth, with a fluoride toothpaste; respect the amount by age — grain of rice before 3, pea from 3 to 6; and stay behind them, supervised brushing and a pleasant taste, until around 7-8. The rest — exact fluoride level, switch to grown-up toothpaste — is decided with the dentist, who knows your child's mouth better than any supermarket shelf.