Most dental marketing advice you will find online was written for American practices. It is not wrong so much as irrelevant: it will not tell you that your website has to display the date it was last updated, or that naming a prescription-only medicine on your homepage is a breach before anyone has even read the sentence.
Five separate rulebooks apply to a UK dental practice before it writes a single ad. Below is what each one requires, roughly in the order practices break them, with the source for every point. We are a marketing platform, not your indemnity provider — treat this as a map of where the fences are, and check anything borderline with your defence organisation before it goes live.
1. GDC guidance on advertising. Professional standards for registrants. Breaching it is a fitness-to-practise matter, which is a different order of consequence from an advertising complaint.
2. The CAP Code, enforced by the ASA. Covers your website, your social posts, your paid ads and your leaflets. Section 12 governs health claims.
3. The Human Medicines Regulations 2012. Prescription-only medicines may not be advertised to the public. This is the rule that catches aesthetic dentistry.
4. The Cosmetic Products Enforcement Regulations 2013. These govern tooth whitening, and breaching them is a criminal offence rather than a regulatory one.
5. The Digital Markets, Competition and Consumers Act 2024. In force since 6 April 2025. It moved reviews and pricing practices out of trading standards guidance and into direct CMA enforcement, with fines of up to 10% of global turnover.
The GDC’s guidance on advertising sets out a list of items that must appear. For every dental professional named on the site: their professional qualification, the country the qualification was obtained in, and their GDC registration number. For the practice itself: the name and geographic address at which the dental service is provided, contact details including an email address and telephone number, the GDC’s address and contact details or a link to the GDC website, details of the complaints procedure and who to contact for dispute resolution, and the date the website was last updated.
Advertising must also make clear whether the practice is NHS, wholly private, or mixed. Two of these are missed constantly. The first is the last-updated date, because content management systems do not add it by default. The second is the GDC number of an associate who joined after the site was built.
“Specialist”. Only a dentist on the relevant GDC specialist list may use “specialist” or “specialist in”. If you are not on the list, the GDC directs you to “special interest in” or “experienced in” instead. Dental care professionals must avoid titles that imply specialist status, such as “smile specialist”.
Comparisons with named practitioners. The GDC guidance says you must not compare your qualifications with those of other practitioners. The CAP Code allows comparison with competitors, but only where it is fair, honest and verifiable — and the GDC rule is the tighter of the two.
Abbreviated memberships. Listing professional memberships in abbreviated form is treated as potentially misleading, because patients cannot tell a qualification from a subscription.
Anything creating an unjustified expectation. This is the catch-all, and it is where “painless”, “guaranteed”, “permanent” and “the best in” usually land. Objective claims need robust evidence held before publication, not assembled after a complaint.
“Dr”. CAP’s dental guidance is explicit that a dentist using the courtesy title must not imply a general medical qualification they do not hold.
Botulinum toxin is a prescription-only medicine. Prescription-only medicines cannot be advertised to the public in the UK, and CAP rule 12.12 forbids it. The ASA’s position is that almost every reference to Botox or another botulinum toxin product in an ad is promotion of a prescription-only medicine, and therefore a breach. Rule 12.18 separately prohibits using health professionals or celebrities to endorse them — which rules out the format most practices reach for first.
What you can do instead: advertise a consultation for the treatment of lines and wrinkles, without naming the medicine in the ad. Non-prescription treatments offered alongside can be named — dermal fillers are not prescription-only. A clinic website may reference a prescription-only medicine contextually, inside information about the consultation, but not on the homepage, not in a logo, and not in a sponsored ad.
The practical consequence is that a boosted post naming the product is a breach even though the same words are acceptable three clicks deep on your own site. That distinction is invisible to most scheduling tools, which is why it is the single most common way a compliant practice publishes a non-compliant ad.
Tooth whitening is governed by the Cosmetic Products Enforcement Regulations 2013. The maximum permitted concentration is 6% hydrogen peroxide, or the equivalent released from another compound — 10% carbamide peroxide releases roughly 3.6% hydrogen peroxide, so it sits inside the limit. Supplying or using a product above 6% is a criminal offence.
Products releasing between 0.1% and 6% may only be used by, or under the direct supervision of, a dental practitioner, and may not be applied to anyone under 18. The GDC has confirmed the age restriction holds even where the patient wants a cosmetic improvement, because whitening is not treating disease. A salon using a product in that range is therefore breaching the regulations, and tooth whitening has been treated by the courts as the practice of dentistry, which only a GDC registrant may carry out. Products at or below 0.1% may be sold to the public, which is why high-street strips exist and do very little.
For marketing, the relevant point is imagery. CAP’s dental guidance singles out digitally manipulating whitening results as unacceptable. Brightening an “after” photo is not a stylistic choice; it is the claim.
CAP treats before-and-after photos as testimonials, under rules 3.47 to 3.50. You must hold signed and dated proof that each image is genuine and unmanipulated, and evidence substantiating the impression the pair creates. Changing lighting, pose or retouching on the “after” image alone is treated as exaggeration, because the difference the reader attributes to the treatment was partly produced in software.
One line worth memorising: a superimposed disclaimer does not rescue an ad that is inherently misleading. “Results may vary” under an exaggerated image changes nothing.
Since 6 April 2025 the DMCC Act has banned three things outright. Submitting or commissioning reviews that falsely present themselves as genuine experience. Concealing that a review was incentivised — by payment, a discount, a free product or anything else of value. And presenting reviews in a misleading way, which expressly includes suppressing negative reviews and cherry-picking positive ones for publication, or leaving up reviews that no longer reflect the service.
Practices publishing reviews must take reasonable and proportionate steps: a published policy on prevention and removal, periodic risk assessment, detection, investigation of suspicious content, removal procedures, and a check on whether any of it is working. The CMA can fine up to 10% of global turnover, and unlike the ASA — which has no power to fine and works through publicity and referral — the CMA can impose that itself.
The two habits most likely to cause a problem are ordinary rather than dishonest. Offering a small incentive for a review without labelling it. And a testimonials page that only shows the good ones — if you publish a selection, the selection itself is now the regulated act.
Compliance failures in dental marketing are rarely decisions. They are a locum’s bio going up without a GDC number, a boosted post that named the product, an old offer still live in March. Those are memory problems, and software is good at memory.
That is the part we automate. Our clinical mode holds a restricted vocabulary list so the words above are flagged before anything is scheduled, injects the required disclaimer on before-and-after formats, and routes every render into a manual approval queue rather than publishing it. The queue is the point: nothing reaches a patient without a registrant looking at it.
Now the honest half. A language model cannot tell you whether a clinical claim is justified for your patient cohort, and it cannot hold the signed and dated evidence that rules 3.47 to 3.50 require — that is a filing obligation, and it stays with the practice. It cannot decide whether an implied outcome is reasonable. And an AI receptionist answering an out-of-hours enquiry must not give clinical advice; the correct behaviour is to take the details, book, and hand a genuine clinical question to a person. Anyone selling you automation that removes the registrant from the loop is selling you the liability, not the software.
If you want the enquiry-handling side rather than the compliance side, that is covered on our page for UK clinics.
Run anything patient-facing past these seven before it goes live.
1. Every named clinician has their qualification, country of qualification and GDC number on the page.
2. The site shows the practice address, email, phone, a link to the GDC, the complaints procedure and a last-updated date.
3. NHS, private or mixed is stated.
4. No “specialist” unless the named dentist is on the relevant GDC list.
5. No prescription-only medicine named anywhere a member of the public meets it first — homepage, logo, paid or boosted post.
6. Every before-and-after pair has signed, dated proof on file, and no editing applied to one image only.
7. Every review is genuine, every incentive is disclosed, and nothing has been filtered out for being unflattering.
Does my dental website legally need to show my GDC number? Yes. The GDC’s guidance on advertising requires the registration number of every dental professional referred to on the site, alongside their qualification and the country it was obtained in. It also requires the number in advertising generally.
Can I describe myself as a specialist? Only if you are on the relevant GDC specialist list. If you are not, use “special interest in” or “experienced in”. Titles such as “smile specialist” are not a workaround; the GDC treats them as implying specialist status.
Can I advertise Botox on my practice website? Not as an advertisement. Botulinum toxin is a prescription-only medicine and CAP rule 12.12 forbids advertising one to the public. You can advertise a consultation for lines and wrinkles without naming it, and a clinic site may mention it contextually within consultation information — but not on the homepage, in a logo, or in any paid or boosted ad.
Can I use before-and-after photos? Yes, with conditions. CAP applies rules 3.47 to 3.50, so you need signed and dated proof that each image is genuine and unretouched, and the pair must not exaggerate what the treatment achieves. Editing, lighting or posing applied only to the “after” image will be treated as exaggeration, and a disclaimer will not fix it.
Can a beauty salon legally whiten teeth in the UK? No. Products releasing between 0.1% and 6% hydrogen peroxide may only be used by, or under the direct supervision of, a dental practitioner. Doing it otherwise breaches the Cosmetic Products Enforcement Regulations 2013, and tooth whitening has been treated by the courts as the practice of dentistry — which only a GDC registrant may carry out.
Can I offer a discount in exchange for a review? Only if the incentive is disclosed wherever the review appears. Since 6 April 2025 the DMCC Act treats a concealed incentivised review as a banned practice, and the CMA can fine up to 10% of global turnover.
Can I remove a bad review from my own website? Not selectively. Suppressing negative reviews and cherry-picking positive ones is named in the Act as misleading presentation. You can remove a review that breaches a published policy — which is one reason to have a published policy.
Can we let AI write our practice’s marketing? For drafting, scheduling and catching the mechanical breaches, yes. For deciding whether a clinical claim is justified, no. The registrant carries the liability, so a registrant has to approve what goes out. Any tool that does not give you an approval step is not saving you work, it is moving risk onto your registration.
GDC — Guidance on advertising · CAP — Dental: General · CAP — Botulinum toxin products · CAP — Before and after photos · Dental Protection — Whitening within the law · Digital Markets, Competition and Consumers Act 2024. Checked 5 September 2026.
Related reading: what an AI receptionist actually does on a trade call · review management software in the UK · AI patient enquiry and recall for UK clinics.