Aipedia: Dentists

AI oral cancer and periodontal screening tools

Aipedia, by the Apex broking team · Last reviewed 2026-10-27

AI screening tools can flag suspicious lesions or periodontal risk, but a clean result must never replace the dentist's own examination and referral judgement. Delayed diagnosis claims can be among the most serious in dentistry, and false reassurance from software is a new route to them.

Part of: AI in Dentists

In short

Image-based AI tools score photos of the oral mucosa for suspicious features, and periodontal tools combine charting and radiographs into a risk score. GDC standard 7.2 requires dentists to work within their competence, and 4.1 requires records that show the clinical reasoning. GDC-commissioned research in October 2026 found AI least reliable in image-based tasks and warned that tools can give confident but wrong answers. The main risk is false reassurance: a low score leads to a missed referral. Indemnity usually responds to a delayed diagnosis claim against the dentist, but notes recording why an AI flag was accepted or overridden are central to defending it.

How screening tools are used

Two types of tool are available. Lesion triage tools analyse intraoral photographs and rate how suspicious a white, red or ulcerated area looks, sometimes recommending review or referral. Periodontal risk tools combine pocket charting, bleeding scores, bone levels from radiographs and medical history into a risk category and suggested recall interval. Hygienists and therapists may use these tools as much as dentists, because they can see many patients for routine soft tissue checks and periodontal care.

The attraction is consistency: a tool applies the same criteria to every photo and chart. The danger is that a tidy score feels more objective than a clinician's impression, so it is easy to let a low result end the conversation. Risk scores can also feed directly into AI treatment plans and recall intervals without anyone revisiting them.

The duties that apply

Competence: under the Standards for the Dental Team, 7.2 requires you to work within your knowledge, skills and competence, and 7.1 to base care on current evidence. You need to examine and decide without the tool.
Records: 4.1 requires contemporaneous, complete and accurate records. The note should show the examination, the AI result and your decision.
Accountability: 6.3.1 applies by analogy: you can rely on a tool for a task, but not hand over accountability for the decision.
Unsafe systems: Principle 8 requires you to raise concerns if a tool appears to be putting patients at risk.
Devices: software that screens for disease is likely to be a medical device regulated by the MHRA, so standard 1.9 means checking its status.

The GDC's October 2026 research on AI in dental education found that AI may weaken clinical reasoning, that tools can give confident but wrong answers, and that AI was least reliable in image-based areas.

What can go wrong

Illustrative scenario: at a routine check a hygienist photographs a persistent white patch on the lateral tongue. The AI tool rates it low risk, and the note says "lesion photographed, AI low risk, review next recall". Nobody records size, texture, duration or the patient's smoking history, and the dentist does not see it. At the next recall the lesion has changed and the patient is referred urgently. The claim alleges that an earlier referral would have changed the outcome.

Periodontal tools carry a slower version of the same risk: a low risk score leads to a long recall and limited treatment while bone loss progresses.

How indemnity usually responds

A delayed diagnosis claim is usually brought against the clinician who examined the patient, and possibly the dentist responsible for supervision, and it is defended on the clinical merits and the records. Compulsory dental indemnity usually responds, subject to its terms. One defence organisation's published position on AI says help is available only where a human remains the decision maker. A note that simply copies the AI result suggests the tool decided. One defence organisation's AI framework includes a RECORDS checklist for documenting the role AI played and the clinician's decision, which is a useful model. See our guide to what to document about AI use.

Practical controls

Examine and describe the lesion fully before running any tool: site, size, colour, texture and duration.
Record the AI result and whether you accepted or overrode it, with reasons.
Apply your usual referral criteria regardless of a low AI score.
Make sure DCPs know when to escalate a lesion to the dentist.
Set recall intervals by clinical judgement, using the risk score as one input.
Audit cases where the tool and clinician disagreed.

How Apex helps

Apex arranges indemnity for dentists and dental care professionals. A broker reviews how your cover responds to screening decisions supported by AI, for each member of the team.

Sources

Frequently asked

If the AI says a lesion is low risk, can I just monitor it?

Only if your own examination supports that. A low AI score should not override your clinical findings or usual referral criteria. Record what you saw, the AI result and why you decided to monitor or refer.

Should I tell patients an AI tool checked their mouth?

There is no GDC rule requiring it yet, but openness supports valid consent and trust. If a tool contributed to a decision to monitor or refer, explaining that, and that you made the final decision, helps the patient understand what happened and why.

What should I write when I disagree with the AI?

Record the AI result, your own findings, what you decided and why. That shows a human made the decision, which matters for how indemnity responds and for any later review of the case.

Can hygienists use AI screening tools?

Yes, within their scope of practice and training. They should know how to escalate a concern to the dentist, and the practice should make sure each team member's indemnity covers the tasks they carry out.

Check your indemnity covers how you use AI

Tell us about your practice and the work you do. A broker will review how your current cover treats AI-assisted work, or arrange new cover. No fee for a quote. Or call 0117 325 0027.

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Apex Insurance Brokers Limited is authorised and regulated by the Financial Conduct Authority. Registered in England and Wales, company number 07014570. This page is general information about how AI is used in the profession and how insurance may respond. It is not legal, regulatory or insurance advice on your circumstances, and it does not guarantee that cover will be available or on what terms.