When Should My Child First See an Orthodontist?

Parents across Nedlands, Dalkeith, Cottesloe, and the wider western suburbs often ask us when the right time is to bring their child in for an orthodontic check. The short answer: around age 7. That surprises most people — their child still has baby teeth, and braces seem like a teenage thing.

But an orthodontic assessment at 7 is not about putting braces on a seven-year-old. It is about catching problems early, when they are often easier and less invasive to fix. This article explains what we look for at that age, what signs parents should watch for at home, and when early treatment genuinely changes outcomes.

Why orthodontists recommend age 7

The Australian Society of Orthodontists, along with orthodontic bodies worldwide, recommends a first orthodontic assessment by age 7. Here is the clinical reasoning.

By age 7, most children have their first permanent molars and front incisors. This mix of baby and adult teeth gives us a window into how the adult dentition is developing. We can identify:

• Jaw growth discrepancies — an upper jaw that is too narrow relative to the lower, or a lower jaw that is growing ahead of or behind the upper
• Crowding — not enough space for the permanent teeth that are still coming through
• Crossbites — where upper teeth sit inside lower teeth rather than outside
• Open bites — where front teeth do not overlap when the back teeth are together
• Impacted teeth — permanent teeth that are blocked from erupting into the correct position

Some of these problems are much easier to address when the jaw is still growing. A narrow upper jaw can be expanded with a palatal expander at age 8, for instance. By age 14, the bones have fused more completely, and the same expansion may require a surgical procedure in severe cases.

That is the key point: early assessment gives us the opportunity to intervene at the optimal time, if intervention is needed at all.

What happens at a first visit

Parents sometimes worry that bringing a young child to the orthodontist will be overwhelming or stressful. It is not. A first visit at our Claremont practice on Stirling Highway is straightforward — and families from schools like Christ Church Grammar (right across the road), MLC, Scotch College, and Shenton College find it easy to fit into the school run.

We examine your child’s teeth, bite, and jaw alignment. We may take an X-ray to check the position of unerupted permanent teeth — this tells us whether teeth are developing normally and whether there is enough space for them. We look at how the jaw is growing and whether the upper and lower jaws are in proportion.

In the majority of cases, the result of this assessment is reassurance. Most seven-year-olds do not need treatment. We note what we see, explain it to you and your child in plain terms, and recommend a review in 12 to 18 months to track how things are progressing.

If we do identify a problem that needs early attention, we explain what it is, why it matters, and what the options are. We do not create urgency where none exists.

Seven signs parents should watch for

While an orthodontist can spot issues that parents cannot, there are some visible signs at home that suggest an assessment is worthwhile — even before age 7 if they are noticeable.

1. Early, late, or irregular loss of baby teeth

Baby teeth generally fall out in a predictable order between ages 6 and 12. If a child loses teeth significantly earlier or later than expected, it can affect how the permanent teeth come through. A baby tooth lost too early — from decay or trauma — means the neighbouring teeth may drift into the gap.

2. Difficulty chewing or biting

If your child avoids certain foods, chews awkwardly, or favours one side of their mouth, their bite may not be aligned correctly. Children do not always articulate this — watch how they eat rather than relying on what they say.

3. Mouth breathing

Chronic mouth breathing in children is worth investigating. It can be linked to a narrow upper jaw that restricts nasal airflow. It may also be related to enlarged tonsils or adenoids — so an assessment from both an orthodontist and a GP is sensible.

Children who mouth breathe often sleep with their mouth open, may snore, and can develop a long, narrow facial growth pattern if the habit persists.

4. Thumb or finger sucking past age 5

Prolonged thumb or finger sucking puts sustained pressure on the front teeth and developing jaw. This can push the upper front teeth forward, prevent them from meeting the lower teeth properly (open bite), and narrow the upper arch.

Most children stop these habits on their own by age 4 or 5. If the habit persists past age 5 and the primary teeth are being visibly affected, an orthodontic assessment is sensible.

5. Teeth that do not meet properly

Ask your child to bite down on their back teeth and smile. Look at how the front teeth overlap. If the upper teeth sit completely in front of the lower teeth with a large gap (excessive overbite), or the lower teeth sit in front of the upper teeth (underbite), or teeth on one side are reversed (crossbite), these are signs worth having checked.

6. Crowded or visibly crooked front teeth

When the permanent front teeth come through crowded or rotated, it usually means there is a space issue in the jaw. Crowding tends to get worse as more permanent teeth erupt, not better. Early identification allows us to plan.

7. Protruding upper front teeth

Upper front teeth that sit well in front of the lower teeth can be cosmetically noticeable and are also more susceptible to injury — particularly during sport. Addressing this during the growing years is often simpler than correcting it after jaw growth has finished.

When early treatment makes a difference

Not every orthodontic issue needs early treatment. Many problems are best addressed in the teenage years when all the permanent teeth have erupted. Early treatment — sometimes called Phase 1 treatment — is reserved for situations where waiting would make the problem significantly worse or harder to treat.

Crossbite correction

A posterior crossbite in a growing child is one of the clearest indications for early treatment. When upper back teeth sit inside the lower teeth, the lower jaw often shifts to one side to compensate. Over time, this can lead to asymmetric jaw growth. Expanding the upper jaw with a palatal expander at age 8 or 9 is a straightforward procedure that becomes considerably more complex if left until after jaw growth is complete.

Space management

When a baby tooth is lost early, space maintainers can prevent the adjacent teeth from drifting into the gap. This preserves room for the permanent tooth to erupt in its proper position and can avoid the need for more extensive treatment later.

Habit correction

Prolonged thumb sucking or tongue thrusting habits that are visibly affecting tooth position can be addressed with orthodontic appliances. The goal is to stop the damage, allow normal development to resume, and reduce the severity of any later treatment.

Protruding teeth

Children with significantly protruding upper front teeth have a higher risk of dental trauma. In some cases, early treatment to reduce the protrusion is worthwhile for this reason alone — particularly for active kids here in Perth, where the outdoor lifestyle means plenty of footy, cricket, and weekends at Cottesloe Beach or down at Freshwater Bay.

What early treatment does not do

It is important to be clear about limitations. Phase 1 treatment addresses a specific developing problem. It does not replace comprehensive orthodontic treatment.

Most children who have Phase 1 treatment will still need Phase 2 — full braces or clear aligners — once all permanent teeth have erupted, typically in the early teenage years. What Phase 1 does is reduce the complexity of that later treatment, shorten its duration, or avoid surgical interventions that might otherwise be necessary.

We are always transparent about this. If we recommend early treatment, we will explain what it will achieve and what it will not — including the likelihood of needing further treatment down the track.

How Perth families can access an orthodontic assessment

If your child is around age 7 — or older and has not yet been assessed — booking a consultation is straightforward. You do not necessarily need a referral from your general dentist, though many dentists do refer when they spot developing issues.

At our practice in Claremont — just off Stirling Highway, opposite Christ Church Grammar School — we see families from across Perth’s western suburbs. Parents from Subiaco, Swanbourne, Peppermint Grove, and Dalkeith find us easy to get to, and Claremont Quarter is just around the corner if you need to run errands while your child is being seen. The initial assessment is designed to be comfortable for the child and informative for the parents.

If everything looks fine, we will tell you. If something needs monitoring, we will schedule a review. And if early treatment would make a meaningful difference, we will explain exactly what it involves, how long it takes, and what it costs — clearly and without pressure.

The most important thing is to have the assessment. An orthodontist cannot help with a problem they have not had the chance to see. Call us on (08) 6288 7188 or book online.

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Any surgical or invasive procedure carries risks. Before proceeding, you should seek a second opinion from an appropriately qualified health practitioner.