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Medical Ethics

The gap that starts before school

By the time a child reaches five, the difference in their teeth already tracks their ethnicity and their postcode. New Zealand has a universal free child dental service and one of the widest oral health gaps in the developed world. Both of those things are true, and a dental panel wants to know why.

13 August 20268 min readNew Zealand
Striped toothpaste being squeezed onto a yellow toothbrush
Photo: Steve Buissinne · CC0 · via source

01

What a panel is actually asking

Dental panels reach for this constantly, because it is the sharpest test of whether a candidate can think about a population rather than a patient. It is also the question where a bad answer is worst — a candidate who lands on parental responsibility has told the panel exactly how they would speak to a whānau in their chair.

The version worth holding is this. Removing the fee removed one barrier. It did not remove transport, work hours, appointment systems, distrust built over generations, unfluoridated water, or the price of fresh food relative to sugary drinks. Universal free care is necessary and not sufficient, and that sentence is most of the answer.

02

What the gap looks like

The measurement is unusually good, because the community oral health service examines almost every child and records what it finds. The picture is consistent across every dataset.

At five, the proportion of children who are caries-free is markedly lower for Māori and Pacific children than for other children, and the average number of affected teeth is higher. This is before school has had any chance to intervene.

At year eight, when children leave the service, the gap has not closed — it has generally widened, because disease compounds and because the children with most disease are the ones least likely to attend recall.

In theatre, Māori and Pacific children are over-represented among those admitted for extractions under general anaesthetic, which is the endpoint of everything that did not happen earlier.

And at eighteen, they enter an adult system that charges, carrying more disease into it — which is where the cost of dentistry takes over and the gap becomes permanent.

03

Why free care did not close it

Barriers that survive the removal of a fee

A universal free service removes one of these. The rest remain.

BarrierHow it operates
FluoridationCoverage has been patchy and historically decided locally; unfluoridated areas skew rural and deprived. The 2021 law moved the decision to the Director-General of Health for this reason.
Transport and timeA free appointment in work hours, some distance away, costs a caregiver a shift. Mobile and school-based clinics exist precisely to remove this.
StaffingVacancies stretch recall intervals most in the regions with highest need, so the service is thinnest where it matters most.
Food and housing environmentsSugary drinks are cheap, widely marketed and often cheaper than the alternatives; crowded and cold housing correlates with the same deprivation.
Trust and cultural safetyA service that has not historically felt safe or respectful is used less, regardless of price. This is measurable and it is the system’s responsibility to fix.
Workforce representationMāori and Pacific practitioners are substantially under-represented in dentistry relative to the populations with the greatest need.

Cultural safety is the concept a New Zealand panel will most want you to be able to use properly, and it is often used loosely. It is not cultural competence — a set of facts about a culture that a practitioner acquires. It is the requirement that the practitioner examine their own bias and power, and that safety is judged by the patient receiving care rather than by the clinician delivering it. The Dental Council and the Medical Council both frame it that way, and the distinction is worth stating precisely because most candidates blur it.

04

What Te Tiriti obliges

You should be able to say why this is a duty and not a preference. Te Tiriti o Waitangi is the founding constitutional document, and health legislation and regulatory standards now translate it into obligations on the system: to work in partnership with Māori, to provide equitable outcomes rather than merely equal services, and to support Māori decision-making about Māori health.

The operative distinction is equity versus equality. Equal treatment gives every child the same appointment. Equitable treatment recognises that a child with more disease, further from a clinic, in an unfluoridated area needs more than the same — and directs resource accordingly. A service that treats everyone identically will preserve a gap it inherited.

The practical expressions include Māori and Pacific health providers delivering oral health services, targeted admission pathways into dental training, school and marae-based delivery, and outcome reporting broken down by ethnicity so the gap cannot be averaged away.

05

Use it in your interview

This appears as "Why do Māori and Pacific children have worse oral health?", as "What does Te Tiriti mean for a dentist?", and inside almost every station about a patient who has not attended.

The last one is where candidates fail. Given a family that missed three appointments, the instinct is to explain the importance of attendance. The better instinct is to ask what made attending hard.

The points that carry this answer

  • Open with the fact that the gap is measurable at five, before the child has made any choices of their own.
  • Say plainly that free care removed the fee and not the other barriers — transport, work hours, staffing, fluoridation, food environment, trust.
  • Use cultural safety correctly: it is about the practitioner examining their own bias, and it is judged by the patient, not the clinician.
  • Distinguish equity from equality — the same appointment for everyone preserves an inherited gap; equitable resourcing is what closes it.
  • Ground the obligation in Te Tiriti and in the regulators’ standards, so it reads as a professional duty rather than a personal value.
  • Name a lever you would actually pull: school and marae-based delivery, Māori and Pacific providers, targeted admission into dental training, or ethnicity-disaggregated outcome reporting.

Where candidates lose marks

Landing on parental responsibility

It ignores everything above, and it tells the panel how you would treat a whānau who arrived late. This is the single most damaging answer available in this station.

Treating ethnicity as the cause

Ethnicity is not a biological explanation for decay. It marks exposure to deprivation, unfluoridated water, distance from services and a system that has not always been safe to use. Say the mechanism, not the marker.

Using cultural safety as a slogan

If you use the term, define it, and get the direction right — the patient judges whether care was safe, not the practitioner.

Declaring structural causes and stopping

Panels want to know what you would do inside your own chair on a Tuesday. Naming a system does not answer that.

06

Where to read more

Start with the Ministry of Health’s oral health statistics, which break decay and caries-free rates down by ethnicity and deprivation — the numbers are more persuasive than any summary of them. Then read the Dental Council’s standards on cultural safety, and any recent review of Māori health outcomes for the constitutional framing.

Read this next to the sugar tax that never happened, which is one exposure driving this gap, and the oral health workforce shortage, which explains why the service is thinnest where need is highest.

A sensible order to read them in

  • Ministry of Health oral health statistics, disaggregated by ethnicity and deprivation.
  • Dental Council standards on cultural safety and practitioner responsibilities.
  • A recent review of Māori health outcomes and system obligations under Te Tiriti.
  • One account of a Māori or Pacific provider delivering oral health services, for what a lever looks like in practice.

FAQ

Frequently asked questions

Substantial and measurable from age five: a markedly lower proportion of Māori and Pacific children are caries-free, and the average number of affected teeth is higher. The gap generally widens rather than closes by year eight, and Māori and Pacific children are over-represented among those needing extractions under general anaesthetic.

Sources

Sources

Every post is checked against primary sources before it is published.

  1. Oral health data and statisticsMinistry of Health (accessed 29 August 2026)
  2. Standards framework for oral health practitionersDental Council of New Zealand (accessed 29 August 2026)
  3. Te Tiriti o Waitangi and the health systemMinistry of Health (accessed 29 August 2026)
  4. Community water fluoridationMinistry of Health (accessed 29 August 2026)

Interview prep

Walk into your interview already match-fit

MMI and panel preparation built for New Zealand medical schools — formats, question banks and coaching.