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“Am I still meant to be brushing his teeth for him?” is a question we hear often — and a really useful one to ask, because the honest answer is that toothbrushing genuinely looks different at every age and stage. What’s needed for a one-year-old is not what’s needed for a seven-year-old, and there’s no need to guess your way through it. This guide walks through how brushing changes as your child grows, some tips for the trickier moments, and when it’s reasonable to start handing over more independence. Good brushing habits are also one of the simplest everyday ways to help protect against tooth decay.

From the very first tooth

Brushing starts as soon as that first tooth appears, usually somewhere in the first year. At this stage, it’s entirely a parent or carer’s job — a soft, small brush wiped or brushed gently over the tooth (or teeth) twice a day, ideally as part of the morning and bedtime routine. It doesn’t need to take long, and a squirmy, unimpressed baby is completely normal. The goal at this age is simply building the habit and getting your child used to having their mouth cared for, rather than achieving a perfect clean.

The toddler and preschool years

As more teeth come through, brushing becomes a bit more involved — but the responsibility still sits with you. Most young children don’t yet have the fine motor skills to brush their own teeth effectively, even if they’re keen to hold the brush and “have a go.” A great approach many families use is letting your toddler brush first (this is where their enthusiasm and independence get to shine), and then a parent or carer finishes the job to make sure all the surfaces are properly cleaned. Twice a day, for about two minutes each time, is the general aim — a timer, a favourite two-minute song, or a fun brushing app can help make this easier for everyone.

The primary school years: building toward independence

This is the stage where children genuinely start developing the coordination needed to brush well on their own — but it doesn’t happen overnight, and it’s different for every child. Many children still need a parent or carer to brush for them, or to check and finish the job afterwards, well into the primary school years. Rather than working to a fixed age, it’s more useful to watch for your child’s actual dexterity and thoroughness — can they reach the back teeth, the inner surfaces, and the gumline consistently well on their own? Until you’re confident they can, staying involved (even just supervising and doing a “top up” clean) makes a real difference.

If you’re ever unsure whether your child is ready to brush unsupervised, or how much involvement is right for their age and stage, that’s exactly the kind of question our team is happy to talk through with you at a check-up. All of the general dentists consulting at Tooth Town are well versed in hands-on brushing technique guidance, and can show your child directly how to brush well in a way that’s encouraging and easy for them to follow.

Making brushing a habit that sticks

A few things tend to help, whatever your child’s age:

• Keep it to twice a day, about two minutes each time. Morning and bedtime are usually easiest to build into the routine, and bedtime brushing matters most since saliva flow slows down overnight.
• Use a timer, song or brushing app. Two minutes can feel like a long time to a young child — a favourite song or a visual timer takes the pressure off having to “just know” when it’s done.
• Let them have a go first. Especially for toddlers and young children, starting with their own attempt (before you finish the job) builds confidence and a sense of ownership over the routine.
• Choose a toothbrush they’re excited about. A favourite colour or character, and a brush head sized appropriately for their mouth, can make a surprising difference to cooperation.
• Make it part of a predictable routine, ideally alongside another wind-down activity like a bedtime story, so it becomes automatic rather than a battle each time.

When brushing turns into a tantrum

Brushing resistance is extremely common, especially in toddlers, and it doesn’t mean you’re doing anything wrong. A few things that often help:

• Stay calm and matter-of-fact. Children often pick up on tension, so a relaxed, “this is just what we do” tone tends to work better than pleading or frustration.
• Offer small, genuine choices. Which toothbrush, which flavour toothpaste, or “teeth first or pyjamas first” can give your child a sense of control without turning brushing itself into a negotiation.
• Try songs, stories or a mirror. Letting your toddler watch themselves brush, or turning it into a short game, can shift the mood without much effort.
• Avoid shaming or punishing. Resistance to brushing is a normal developmental phase for many children, not defiance to be corrected. A calm, consistent approach over time works far better than pressure.
• Get it done gently, even if it’s brief. On the hardest days, a quick, calm clean is better than skipping altogether — it doesn’t need to be perfect every time.

If brushing resistance is a persistent, significant struggle in your family — particularly for a child with sensory sensitivities or additional needs — please let us know. We can talk through some practical strategies suited to your child.

When to introduce flossing

Flossing becomes relevant once your child has two teeth that touch each other, which usually happens somewhere in the early years as the back baby teeth come in. Like brushing, flossing is a parent or carer job at first — most children won’t have the coordination to floss effectively on their own for quite some time. Floss picks (the small handled ones) are often easier for parents to manage than traditional floss, especially for wriggly children. If you’re not sure whether it’s time to start, or want to be shown the technique, just ask us at your child’s next check-up.

Frequently asked questions

At what age can my child start brushing their own teeth?

There’s no single age that applies to every child — it depends on their individual coordination and dexterity, which develops at different rates. Many children still need a parent or carer to brush for them, or to check and finish the clean, well into the primary school years. If you’re unsure where your child is at, we’re happy to guide you at a check-up.

How much toothpaste should I be using, and does it change with age?

Yes, the appropriate amount and toothpaste strength does change as your child grows. Rather than a single blanket rule, we tailor this advice to your child — ask our team or your child health nurse, who can talk you through what’s right for your child’s current age and stage. Our full guide to fluoride for children covers this in more detail.

My toddler screams every time we try to brush their teeth. What can I do?

This is very common and not a sign you’re doing anything wrong. Staying calm, offering small choices, using songs or a timer, and keeping the process brief but consistent all tend to help. If it’s a persistent struggle, we’re happy to talk through some strategies with you.

Is it okay to let my child “practise” brushing on their own even if I still finish the job?

Yes — letting a toddler or young child have a go first, before a parent or carer finishes the clean, is a great way to build their confidence and independence over time without compromising on a thorough clean.

When should I start flossing my child’s teeth?

Generally once two of your child’s teeth are touching, which often happens as the back baby teeth come through. Flossing is usually a parent or carer job at first — ask us to show you the technique if you’re unsure.

Who can help if I want hands-on guidance about brushing technique?

All of the general dentists consulting at Tooth Town provide personalised, practical guidance on brushing technique for children of all ages, and can show your child directly how to brush well. Just ask at your next check-up.

What to do next

Brushing habits change a lot over the years, and it’s completely normal to wonder whether you should still be involved or whether your child is ready to take over. If you’d like some hands-on guidance, or it’s time for your child’s next check-up, book an appointment with our friendly team — we’re always happy to talk through what’s right for your child’s age and stage.

This guide is general information and doesn’t replace an individual assessment. Your child’s clinician will confirm what’s most appropriate for your child.

Related service at Tooth Town: Preventive Services

If your child sucks their thumb or uses a dummy, you’re in good company — it’s one of the most common and completely normal ways babies and young children soothe themselves. It’s not a sign of anything wrong, and it’s not something to worry about in the early years. This guide explains why these habits are so common, when they start to matter for developing teeth and jaws, and some gentle ways to help your child move on from the habit — ideally well before their adult teeth are due.

Why thumb-sucking and dummy use are so normal

Sucking is one of the very first skills babies develop — it’s how they feed, and it’s also a natural way to self-soothe. Many babies discover their thumb or a dummy as a source of comfort well before their first birthday, and lots of toddlers keep the habit going through the early years, especially at nap time, bedtime, or when they’re tired, unwell or a little anxious.

There’s nothing to be concerned about here in a baby or young toddler. These are healthy, expected habits in the early years, and most children have plenty of time to grow out of them without any lasting effect on their teeth — provided the habit doesn’t continue on intensely into the toddler and pre-school years.

When can it start to affect teeth and jaw development?

The things that matter most are how long, how often and how intensely a child sucks their thumb or dummy — and, importantly, how old they are while the habit continues.

Current dental guidance recommends aiming to stop non-nutritive sucking habits well before your child’s adult (permanent) teeth begin to come through — as a general guide, working towards stopping by around three years of age, with dummy use ideally limited or reduced from around 18 months, when the canine teeth start to emerge, as this can help lower the risk of a crossbite developing.

A gentle, occasional habit in a toddler is very different from an intense, frequent habit that continues on into the years when the permanent front teeth are due. Changes that appear while a habit continues in the baby teeth — such as the front teeth tipping forward, an open bite (where the front teeth don’t quite meet when the mouth is closed), or a narrower dental arch — will often settle on their own once the habit stops, particularly if it stops early. However, the longer an intense habit continues beyond the toddler years, and especially if it’s still going once the permanent front teeth start erupting, the more likely these changes are to become a lasting part of how the arches and bite have developed — sometimes needing orthodontic treatment to correct later on.

Every child is different, and not every child who sucks their thumb or a dummy will experience these changes — it depends on intensity, frequency, duration and individual growth. But the clear, general message is: earlier is better. It’s worth actively working towards helping your child stop well before their adult front teeth are due, rather than waiting to see what happens.

Signs it may be worth a check

You don’t need to act on your own judgement alone — that’s what we’re here for. It may be worth booking a check if:

• Your child is still sucking their thumb or a dummy intensely and frequently as they approach, or move beyond, the toddler years — particularly once their adult front teeth are starting to come through.
• You’ve noticed a change in how their front teeth line up, or a gap between the top and bottom teeth when they bite together.
• You’re finding it hard to help your child stop the habit and would like some support.
• You’re simply unsure and would like reassurance either way.

There’s no need to feel anxious about bringing this up — it’s one of the most common things parents ask us about, and we’re always happy to take a look, confirm where your child’s teeth are at, and talk through next steps.

Gentle, non-shaming ways to help an older child who wants to stop

If your child is a bit older and keen to stop — or you’d like to gently start encouraging it, ideally well before their adult front teeth are due — small, kind, low-pressure steps tend to work best. Habits like this are almost always about comfort, so the goal is to support your child, not to make them feel bad about something so normal.

Notice the triggers. Thumb-sucking and dummy use often ramp up around tiredness, boredom, anxiety or big transitions (like starting school or a new sibling arriving). Once you notice the pattern, you can offer comfort in another way at those moments — a cuddle, a favourite soft toy, or some quiet time together.

Praise and encourage, rather than scold. Positive reinforcement — a sticker chart, small rewards for stretches without the habit, or simply warm praise when you notice your child managing without it — tends to work far better than telling a child off. Scolding or shaming a child about thumb-sucking or dummy use can create stress around something that was only ever a comfort habit in the first place.

Involve your child in the plan. Children who feel some ownership over the decision to stop — choosing their own reward chart, or picking a “grown-up” replacement comfort item — often do better than children who feel it’s being imposed on them.

Go gradually where you can. For dummies, some families find it easier to start by limiting use to sleep times only, then gradually phase it out altogether, rather than stopping all at once.

Be patient with setbacks. It’s normal for progress to be up and down, especially during stressful periods. A gentle, consistent approach over time works better than pressure.

Consider support from an orofacial myologist. If your child is finding it hard to stop, particularly as they get closer to the age their adult front teeth are due, our orofacial myologists offer gentle, structured cessation programs designed to support children away from thumb-sucking and dummy habits — using positive, guided techniques rather than aversive ones. This can be a helpful next step if the strategies above haven’t been enough on their own.

Some families find that a taste deterrent (such as a bitter-tasting, child-safe nail polish for thumb-sucking) helps as part of a broader plan — but please talk to us first before trying anything like this, so we can make sure it’s an appropriate and safe option for your child.

How we help at Tooth Town

At a check-up, we’re always happy to have a look at your child’s bite and talk through whether a thumb-sucking or dummy habit is having any effect on their teeth, and whether it’s time to actively work on stopping. Most of the time, reassurance and a gentle plan at home is all that’s needed. For children who need extra support, we can also discuss a referral to one of our orofacial myologists for a structured cessation program. If we do notice changes to the bite or the way the teeth are lining up, we’ll explain what we’re seeing and, where relevant, ongoing bite or orthodontic concerns are reviewed as part of our early interceptive orthodontic care pathway. Nothing is decided or recommended until your child has been assessed in person.

Frequently asked questions

Is thumb-sucking or dummy use bad for my baby or toddler’s teeth?

No — in babies and young children, these are normal comfort habits and aren’t something to worry about. It’s the intensity, frequency and how long the habit continues — particularly once it runs into the years the adult front teeth are due — that can matter.

At what age should my child stop sucking their thumb or using a dummy?

Current dental guidance points to aiming to stop well before your child’s adult front teeth are due to come through — as a general guide, working towards stopping by around three years of age, with dummy use ideally limited from around 18 months. The longer an intense habit continues beyond the toddler years, the more likely it is to affect the permanent teeth and jaw growth in ways that don’t reverse on their own. If your child is finding it hard to stop, we’re happy to help.

Will my child need braces because of thumb-sucking?

Not necessarily. Whether a habit has affected the bite varies from child to child, and depends heavily on how long and how intensely the habit continued, and at what age. If we notice any changes, we’ll talk you through it, and ongoing orthodontic concerns are reviewed as part of our orthodontic care pathway.

Should I use something to stop my child sucking their thumb?

Positive, low-pressure approaches — noticing triggers, praise, and involving your child in the plan — are a good place to start. If you’re considering a taste deterrent or any other product, please speak with us first.

Can an orofacial myologist help my child stop thumb-sucking or dummy use?

Yes. Our orofacial myologists offer gentle, structured cessation programs designed to guide children away from the habit using positive techniques, rather than aversive ones. This can be a useful option alongside the strategies in this guide, particularly if your child is finding it hard to stop as they approach the age their adult teeth are due. Ask our team for more information.

Is a dummy better or worse than thumb-sucking?

Both are common, normal comfort habits, and the same general principles apply to each — frequency, intensity, duration and the age the habit continues to all matter more than which one your child prefers. We’re happy to discuss your child’s individual situation at a check-up.

Should I be worried if my older child still sucks their thumb?

Try not to panic, but it is worth actively addressing — plenty of children take a little longer to stop, and shaming a child about it rarely helps. If your child is past the age their adult front teeth are due and the habit is still intense or frequent, please book a check so we can have a look, offer guidance, and talk about options — including support from an orofacial myologist — to help your child move on from the habit.

What to do next

If you’re at all unsure whether your child’s thumb-sucking or dummy habit is something to actively work on stopping, the simplest next step is to bring it up at their next check-up, or book an appointment with our friendly Coorparoo team. We’re always glad to take a look, offer reassurance, and talk through gentle next steps together — including a referral to one of our orofacial myologists if that would help — without any judgement.

This guide is general information and doesn’t replace an individual assessment. Your child’s clinician will confirm what’s most appropriate for them.

Related service at Tooth Town: Preventive Services