Written for colleagues. Komura Pediatric & Orthodontic Clinic, Toyonaka, Osaka, Japan.
This clinic treats children and orthodontic patients under one roof. That is not a convenience of scheduling. It is the reason we hold the view set out below: much of what an orthodontist later has to correct was decided years earlier, in a paediatric chair.
1. Caries risk is not evenly distributed, and averages hide that
Population-level caries has fallen in Japan, as it has elsewhere. The average is a poor guide to the individual. In every cohort we see, there is a group of children for whom brushing and fluoride — done properly, by conscientious families — do not keep pace with the rate at which lesions appear.
These children exist. Telling their families that fluoride and brushing are sufficient, because that is true on average, is not caution. It is a delay, and in fast-progressing dentitions the delay is measured in teeth.
For that group we restore early rather than watch, and we say plainly that the usual advice is not enough in their case. We accept that this is harder to hear than reassurance.
2. Diet, and the formation of taste, is decisive by around age three
We treat this as the single highest-yield intervention in paediatric dentistry, and we do not soften it.
What a child accepts as normal food is largely settled early. A palate formed on sweetness treats sweetness as the baseline for the rest of childhood, and every later conversation about diet is an argument against something that already feels normal. A palate formed on ordinary food does not require that argument.
For high-risk children we ask for strict restriction of sugar, not merely attention to timing and frequency. We are aware that the more moderate formulation is easier to deliver and better received. We do not think it is what those particular children need, and the ones who pay for the softer version are not the adults in the room.
We try to put this to families as a prescription rather than as a judgement of their parenting — the subject of the sentence should be sugar, or the enamel, not the mother. The content does not change; the aim of the sentence does.
3. Function decides the base that orthodontics later works within
Nasal breathing, lip seal, tongue posture, chewing. These are not adjuncts to orthodontics; in a growing child they are part of what determines the skeletal base — the arch width and the vertical pattern that a later appliance can work within, or must fight against.
Where a child habitually breathes through the mouth, we look for a reason and, where it is medical, we refer. Where the pattern is habitual, we treat it as trainable, over months rather than visits.
The reason this belongs on an orthodontic page is arithmetical. Crowding that has not yet formed does not need space. If the base can be developed while growth is still available, the case that would have required a decision about extraction may never require one.
4. Why this is the same discipline, not two
A clinic that sees prevention and orthodontics as separate services will optimise each separately, and the seam between them is where children are lost — the child discharged at six with sound teeth and an arch that was never assessed; the child referred at eleven with a skeletal pattern that could have been influenced at seven.
We do not think either of those is a failure of skill. They are a failure of the interval between two appointments in different buildings.
5. What we say to families
We try to present findings as options that are still open rather than as damage already done.
“If we begin now, these choices remain available” is more accurate than “it is too late” — and it is also more useful, because a family that feels blamed usually protects itself rather than the child. Fear produces one appointment. Understanding produces ten years of them.
We also tell families what we cannot promise. Growth is not fully predictable. Some patterns will need orthodontics regardless of how well the early years go. Prevention lowers the probability of intervention; it does not remove it, and we say so at the start rather than when it becomes relevant.
6. Where we may be wrong
Two places, and we would like to hear from colleagues on both.
Early treatment can be over-applied. The argument above justifies intervening in a growing child; it does not justify intervening in every growing child. Where growth would have resolved the finding without us, we have added burden and cost for no benefit. We try to be honest about that boundary, and we do not think we have it perfectly placed.
Strictness has a cost we do not carry. The families who follow strict dietary advice pay for it daily, in a culture where sweetened food is offered to children constantly and refusing it is socially expensive. We think it is the right ask for high-risk children. We do not think it is a small one, and a clinician who presents it as easy has not done it.
Komura Pediatric & Orthodontic Clinic · 5-14-4 Nakasakurazuka, Toyonaka, Osaka 561-0881, Japan · komura-ortho.jp
This page describes how our clinic approaches treatment planning. It is not clinical advice for any individual patient, and outcomes differ between patients. Treatment decisions require examination and diagnosis.