Skill mix and scope of practice: who does what in a dental team

Ask a dentistry applicant who works in a dental practice and a surprising number say "a dentist and a nurse". That answer is roughly a generation out of date, and interview panels know it. The General Dental Council registers dentists alongside six separate dental care professional titles, each with its own defined scope of practice: dental nurses, dental hygienists, dental therapists, orthodontic therapists, dental technicians and clinical dental technicians. Every one of them is a registrant in their own right, with their own duties, their own indemnity and their own limits.

Two things pushed this from a quiet regulatory detail to a hot topic. The first is direct access, introduced by the GDC in 2013, which allows a patient to see a hygienist or a therapist without first being seen by a dentist. The second is the state of NHS dentistry. Access has dominated UK dental policy for several years, and skill mix — using the whole registered team rather than routing everything through the dentist — is regularly offered as part of the fix. As of 2026 that argument is still live, which is exactly why it turns up at interview.

Scope of practice is GDC guidance, not a job description written by a practice. It sets out what each registration title covers, which additional skills a professional may add after further training, and the rule that sits above all of it: you work within your own knowledge, skills and competence, and you refer when a case runs past them. A dentist holds the widest scope. That does not make everything a dentist is permitted to do automatically appropriate for that dentist to do today, on this patient, at this stage of their career.

The table below is the version worth carrying into an interview. It is deliberately coarse, because real scope depends on training, additional skills and the setting. A candidate who can sketch this much from memory is already ahead of most of the room.

The dental therapist carries most of the skill-mix argument, so know that role precisely. A therapist can assess a patient’s oral health and plan treatment within their scope, take radiographs, deliver prevention and periodontal care, place direct restorations in both baby and adult teeth, carry out pulp treatment on baby teeth, extract baby teeth, place preformed crowns on them and give local anaesthetic. That is a substantial clinical list, and it covers a large share of what routine NHS dentistry actually consists of.

What sits outside the title matters just as much. A therapist does not extract permanent teeth, does not prepare teeth for crowns or bridges, and does not provide dentures. Nor can hygienists and therapists prescribe prescription-only medicines the way a dentist can: they have worked through a dentist’s written direction or a patient group direction, and moves to let them supply and administer a defined list of medicines more directly have been working through legislation and training requirements. As of 2026, check the GDC and the British Dental Association for where that has got to rather than asserting a status in an interview.

Direct access is the change that gives this topic its edge. Before 2013, a hygienist or therapist in the UK could treat a patient only on a dentist’s prescription. Since then the GDC has allowed patients to see a hygienist or therapist directly for treatment within that professional’s scope and competence, provided the arrangements are safe: the professional has to recognise what is beyond them and have a clear route to refer on to a dentist. Clinical dental technicians can likewise see patients directly for complete dentures, while partial dentures still need a dentist’s prescription.

What direct access is not is a licence to practise dentistry. A therapist who finds a permanent tooth needing an extraction refers. A hygienist who sees something suspicious in the soft tissues refers. The regulator moved the front door. It did not move the walls.

Here is the part most candidates miss. What a professional is registered to do and what the NHS pays for are separate questions, and in general dental practice the second one decides the day. NHS dentistry in England is commissioned through contracts denominated in units of dental activity. A practice agrees to deliver a set number of UDAs a year for a set sum, and a whole course of treatment earns a banded number of UDAs rather than a fee per procedure: broadly a single unit for a band 1 examination, more for a band 2 course involving fillings or extractions, and twelve for a band 3 course involving laboratory work such as dentures or crowns.

Two consequences follow. A course of treatment pays the same whether it takes twenty minutes or two hours, which is why complex, high-needs patients are the least attractive work in the system. And because payment attaches to the course rather than the procedure, who may open that course is not a technicality: it decides whether a therapist can run a list at all. That is the sense in which the contract, not the GDC, sets the ceiling on skill mix. Our guide to how the NHS works places dental commissioning in the wider picture.

The case for skill mix is stronger than "it is cheaper", and you should make the better version of it. Much of routine NHS dentistry — examinations, prevention, periodontal care, fillings, baby-tooth extractions — sits inside a therapist’s scope. Every hour a dentist spends on that work is an hour not spent on surgical extractions, root canal treatment, complex prosthodontics and the planning only a dentist can sign off. Matching work to the professional trained to do it safely is how most of the rest of healthcare has expanded capacity.

Prevention sharpens the argument. Tooth decay is very largely preventable, and it is repeatedly reported as one of the most common reasons for hospital admission among young children in England, usually for extractions under general anaesthetic. Prevention is time-hungry and unglamorous, and it is exactly the work a therapist or hygienist is trained to deliver at scale. Where access is worst, an available appointment with a therapist beats a waiting list for a dentist.

Now the objections, argued at their strongest rather than as straw men. The first is diagnosis. Working out what is wrong, and what a mouth needs over years rather than at this visit, is the hardest part of dentistry and the part carrying the most risk. A system that routes people to whoever is free can fragment care into episodes with nobody holding the whole picture. Continuity is not sentimentality; it is how slow disease gets caught.

The second is that skill mix becomes a substitute for funding. The British Dental Association has broadly argued that using the team better is welcome but is no fix for a contract many dentists regard as the root problem: add therapists to a system whose payment model is the constraint and you may simply spread the same shortfall further. The third is equity. If skill mix is deployed hardest where access is worst, you risk a service in which the least advantaged patients routinely see the least experienced clinician available. That is a justice question, and worth reading against the four pillars of medical ethics. The honest counter is that the real comparison is often not therapist versus dentist, but therapist versus nothing.

This topic almost never arrives as "describe the GDC scope of practice". It arrives as:

• "Who works in a dental team, and what does each of them do?"
• "What is direct access, and do you think it is a good thing?"
• "How would you improve access to NHS dentistry?"
• "As a dentist, how would you decide what to delegate?"
• Follow-ups on responsibility: "If a therapist you referred a patient to misses something, whose fault is it?"

The depth expected is not encyclopaedic. A panel wants four things: the roles named accurately, one sentence on direct access and roughly when it came in, a specific example of something a therapist can do and something they cannot, and an even-handed reading of the debate that does not collapse into a slogan. Say it out loud before the day — our interview preparation pages exist for that rehearsal.

Scope of practice is one of the few dentistry interview topics that rewards precision over opinion, because it is checkable. It also tells a panel, quietly, what sort of colleague you will be: someone who knows the team, respects what each member is registered to do, and is honest about the edge of their own competence. Work through the rest of the system on our interview reading path, and if you are still deciding where to apply, our dental schools guide sets out how UK courses differ in how early they put you to work inside a real dental team.