Nobody Warns You That You'll Still Be Doing It at Eight

Somebody asked a room full of parents a simple question: are you still brushing your toddler’s teeth?

The answers didn’t go the way you’d expect. Almost nobody said “no, they’ve got it.” What came back instead was a long list of ages, and the ages kept climbing.

I brush my kids once a day til 8. Around 5 my older kid started doing his own morning brushing. I still do evening.

My kid is 7 and I still brush them sometimes when I can see he’s not doing it right. I always supervise and watch him doing it because kids are kids and won’t do it thoroughly.

No. I don’t stop monitoring my kids until about 8.

I still check my 9 yo tooth brushing.

I will brush my kids teeth probably until they are 10!!! No cavities happening on my watch.

Seven. Eight. Nine. Ten. Not four, which is roughly when most people quietly assume the handover happens.

It isn’t about cooperation

Here’s the part that reframes it: the reason to keep doing it has almost nothing to do with whether the child is willing.

Brushing well is a fine motor task. You’re angling bristles at forty-five degrees into the gum line, working the inner surfaces of the back molars where you can’t see, and keeping it up for two minutes without losing interest. That is a genuinely difficult piece of hand control.

A four-year-old does not have it. Neither does a seven-year-old, mostly. One parent put the ceiling higher than anyone else in the thread and wasn’t obviously wrong:

12 year olds can not properly clean their teeth majority of the time. There is no way a toddler can!

So the question isn’t when will they cooperate. It’s when can their hands actually do the job. Those are years apart, and the gap is where cavities happen.

What everyone independently invented

Across dozens of separate replies, parents kept describing the same routine without any of them citing a source. That kind of convergence usually means it works.

They go, then you go. The child brushes first — badly, briefly, enthusiastically — and then an adult goes in and does the real pass.

Anyone who cares about their toddlers teeth is brushing them. Doesn’t mean the toddler can’t “brush” first, but an adult definitely needs to get in there.

We brush and then let our toddler brush and try to help coach them. Sometimes, it is the other way around.

I will brush throughly first (toddler/young kid age) and then let them brush again/finish brushing to practice

The order barely matters. What matters is that the practice run and the actual cleaning are two different events, and only one of them is optional.

Split the day. Several parents let the morning slide to the child and kept the night for themselves. Night is the one that counts — saliva production drops while you sleep, so whatever is left on the teeth at bedtime sits there for eight undisturbed hours.

I was told by our dentist kids can practice and we assist in the morning but bedtime make sure we brush throughly and floss.

The bit that makes parents feel better

There’s a specific behavior that comes up so often it’s practically a developmental stage, and every parent who describes it seems to think they’re the only one:

Your toddlers are letting you brush their teeth? Lmao, my toddler just sucks the toothpaste off and runs the brush around her mouth, then yeets the damn thing over her head and runs out of the bathroom squealing and usually mostly naked.

i actually struggle with my toddler even allowing me to put the toothbrush in her mouth. she rubs it against her front teeth and sucks the toothpaste off, but how do you all get your toddlers to cooperate long enough for a good brushing? 😅

Sucking the toothpaste off and considering the matter closed is the default toddler position. It is not a discipline problem and it isn’t a sign you’ve done anything wrong. It’s what a person does when they like the taste of something and haven’t yet grasped why the rest of it is happening.

Which is also the argument for not making it a battle of wills. You are not trying to win an argument with a three-year-old about oral hygiene. You are trying to get thirty seconds of adult hands in there, twice a day, for about the next six years.

The short version

• Willingness arrives years before ability. Ability is the one that matters.
• Let them brush. Then brush their teeth. Both, every time.
• If you only get one proper pass in, make it the night one.
• The toothpaste-sucking phase is universal. Nobody’s child does this well.
• Somewhere between seven and ten, check the job before you stop checking it.