NHS Dental Statistics and Choosing Your Population for a Dentistry Dissertation (UK, 2026)

NHS Business Services Authority (NHSBSA) data published 27 August 2026 (updated 24 September 2026) shows 18.8 million adult patients were seen by an NHS dentist in the 24 months to 31 March 2026 — 40% of England’s mid-year adult population — a headline figure that should shape how you define your population before you choose a dentistry dissertation topic.

Why your population choice matters more in dentistry than it looks

The NHSBSA figures above already tell you something important: child patient access (60% of the mid-year population) is substantially higher than adult access (40%), and both numbers describe averages across England, not any one local population. A dissertation that names “NHS dental patients” as its population without specifying age group, region, or NHS vs private status has not actually defined a researchable population — it has restated the headline statistic. The gap between the two access rates is itself a legitimate research question (why does child access outpace adult access so substantially, and does that gap hold locally as well as nationally), but only if your population definition is precise enough to actually test it against a narrower dataset than the national topline.

NHS vs private patients: a real methodological choice

NHS and private dental care are genuinely different populations for research purposes, not just different funding routes. NHS patients are captured in the NHSBSA statistics above; private patients are not centrally recorded in the same way, so a dissertation studying private-patient experience or access cannot rely on NHSBSA data and needs a different, usually primary or practice-level, data source. If your research question is about affordability, access inequality, or the NHS-private divide itself, state explicitly which population(s) your data can actually speak to, since the published national statistics answer only the NHS half of that question. Our broader guide to NHS and public health datasets for a UK health dissertation covers the equivalent access-tier questions across other published NHS data.

Choosing a population within the NHS data

Once you have decided NHS patients are your population, narrow further using the dimensions the NHSBSA data itself is broken down by:

• Age group — child patients (a 12-month reporting window) and adult patients (a 24-month reporting window) are reported on different cycles, which matters if you are comparing access rates directly.
• Treatment band — band 1 (61% of courses of treatment in 2025/26), band 2, band 3 and urgent treatment (11% of courses) each represent a different clinical population and a different research question.
• Geography — national figures conceal substantial regional variation; the release includes breakdowns at regional, local authority, integrated care board (ICB) and ward level, so if your dissertation makes a claim about a specific area, use area-level data, not the national headline.
• Vulnerable or specific groups — looked-after children, care home residents, people with dental anxiety or additional needs are each a distinct, narrower population than “NHS patients” generally, and each has its own access literature worth reviewing separately; our guide to choosing a population and setting for a dissertation covers the same care-home and vulnerable-group access questions from an allied-health angle.

What the NHSBSA data can and cannot tell you

The NHSBSA release is an activity dataset — it counts patients seen, courses of treatment delivered, and dentists with NHS activity. It does not, on its own, tell you why someone did not access care, what their experience of the appointment was, or how they perceive dental services. A dissertation asking “how many people access NHS dental care” can be answered directly from this data; a dissertation asking “why do some people not access NHS dental care” needs a different kind of evidence — qualitative literature, published survey data, or a documentary or policy analysis. Being explicit in your methodology chapter about which of these two kinds of question your data can actually answer is a basic but frequently skipped step.

The national headline is also an aggregate. It cannot tell you about a specific practice, a specific town, or a specific demographic group unless NHSBSA has published a breakdown at that level — check the release’s own supporting tables before assuming a sub-national or sub-group figure exists; if it does not, say so explicitly rather than extrapolating the national average downward without justification.

What primary research is realistic for an undergraduate?

As with other undergraduate health dissertations on this site, the Health Research Authority has not accepted standalone undergraduate applications for NHS ethics review or HRA Approval since 1 September 2021, and the HRA counts research with NHS patients, service users or NHS staff as participants among the studies that need that review. That closes off most direct-patient designs and interviews with NHS dental staff recruited through the NHS. Realistic undergraduate routes are: secondary analysis of the published NHSBSA statistics and equivalent published datasets; a documentary or policy-analysis design; or, where your university confirms that HRA review is not required, research with participants outside the NHS. Our guide to ethics approval for an undergraduate dissertation covers the review tiers and triggers this bar sits within.

A worked example (illustrative)

An illustrative, labelled example: a dissertation asking whether NHS dental access for children varies across England defines its population precisely as “NHS child patients seen in the 12 months to 31 March 2026, England-wide”, using the NHSBSA’s own reporting period rather than an arbitrary date range. The dissertation states the 60% access figure as its baseline, sourced explicitly to the NHSBSA release (published 27 August 2026, updated 24 September 2026, with the release’s own correction notices checked and found not to change its key findings). Because the HRA bar rules out primary recruitment through the NHS, the dissertation’s own analysis compares integrated care board figures from the release’s geographical breakdown tables against the national rate, and discusses the pattern against published literature on children’s dental access.

Common mistakes when defining your population

• Treating “NHS dental patients” as a sufficient population statement. Age group, treatment band, geography and vulnerable-group status all need specifying.
• Conflating NHS and private populations. The NHSBSA statistics describe NHS activity only; do not generalise national NHS figures to the private sector or vice versa.
• Using a figure without its exact reporting period. Adult figures cover a 24-month window; child figures cover 12 months — comparing them directly without noting this is a common, avoidable error.
• Not checking for correction notices. NHSBSA releases are sometimes updated after first publication; note the version and date you used, and check whether any correction affects the specific figures you cite.
• Confusing population definition with sample access. Defining your population is a separate step from working out how you can actually reach it — our guide to population, sample and data access for a dissertation (written for accounting, but the logic transfers) walks through both steps in order.

Frequently asked questions

What is the most recent NHS dental statistics release?

NHS Dental Statistics for England 2025/26, published by NHSBSA on 27 August 2026 and updated 24 September 2026 with correction notices that, per the release itself, do not change its key findings.

Can I study private dental patients using NHSBSA data?

No — NHSBSA statistics cover NHS activity only. A private-patient population needs a different data source, typically primary research at practice level or industry survey data.

Why do adult and child patient figures cover different time periods?

NHSBSA reports adult patients seen over a 24-month window and child patients seen over a 12-month window. The release’s background and methodology document explains how these measures are built — always state the reporting period alongside any figure you cite.

Can I interview NHS patients directly for my dissertation?

Standalone undergraduate research that needs NHS ethics review or HRA Approval has not been accepted by the HRA since 1 September 2021 — a documentary or secondary-data design is the realistic route.

Is regional-level NHS dental data available?

Yes — the release includes breakdowns at regional, local authority, integrated care board and ward level; if your dissertation makes a claim about a specific area, use those figures rather than the national headline.

What does a “course of treatment” mean in this data?

A course of treatment is the complete episode of NHS dental care a patient receives in one visit or connected series of visits, banded by complexity (band 1 being the simplest, through to band 3 and urgent treatment).

How do I cite the NHSBSA release in my dissertation?

Cite the specific release by its title, publisher (NHS Business Services Authority) and publication date, e.g. NHSBSA (2026) NHS Dental Statistics for England 2025/26. Published 27 August 2026. Note the update date too if you rely on a figure that was corrected after first publication.

Are looked-after children a distinct population in this data?

The national headline figures do not break this group out separately; if your dissertation focuses on looked-after children’s dental access specifically, you will need a more targeted source or a documentary/policy-analysis design rather than the national NHSBSA topline alone.

What is the single biggest reason dentistry population sections lose marks?

Citing a national NHS statistic as if it applies uniformly to a local, private, or specific-group population the dissertation is actually interested in, without checking whether the national figure genuinely transfers.

How often is the NHSBSA dental statistics release updated?

The 2025/26 release was published 27 August 2026 and last updated 24 September 2026 with correction notices; check the NHSBSA website directly for the current version before citing a figure, since releases can be revised after first publication.

Does the 40% adult access figure mean 40% of adults use NHS dentistry regularly?

It means 40% of the mid-year adult population was seen by an NHS dentist across the stated 24-month window — it does not distinguish between someone seen once and someone seen regularly, so avoid over-interpreting it as a measure of regular attendance without checking whether the release breaks this down further.

Can I compare this year’s figures to a previous release?

Yes, and doing so responsibly strengthens a dissertation — but the 2025/26 release notes that previous releases were produced by NHS England (formerly NHS Digital), so check that the earlier release used the same methodology and reporting window before making a year-on-year comparison.

Can Tesify help me define my population for a dentistry dissertation?

Tesify is used to write dissertations end to end, including methodology and population sections, with every draft 100% written by you through the platform — it does not source the latest NHSBSA release for you, but it can help you structure and write up your population definition once you have the current data in hand.

Should I use the NHSBSA data or NHS England’s dental statistics?

For 2025/26 the release is produced by NHSBSA; earlier years were produced by NHS England (formerly NHS Digital) and are on NHS England’s dental statistics webpage. Cite the publisher that actually produced the release year you use.

Tesify has helped over 9,000 students write more than 15,000 dissertation chapters, and every draft is 100% written by you, guided section by section. Start your dentistry dissertation with Tesify and work through your population and methodology sections with the current NHS data mapped out properly from the start.