What AI Can and Can't Tell You About Your Teeth
In short Chatbots are good at explaining terms and prices but can't examine you. Knowing where that line sits stops you from trusting AI too much or dismissing it entirely.
You’ve left the dentist with a printed treatment plan, and the total at the bottom is somewhere north of £2,000. Half the lines are abbreviations. You open ChatGPT on the bus home, paste in the whole thing and type “is this reasonable?”
So can AI give dental advice? It can give you dental information, and it’s very good at that. It can’t give you advice about your mouth, because that advice depends on an examination no chatbot can do. Everything on the piece of paper is fair game for AI. Everything inside your mouth isn’t. If you hold onto that rule, you won’t treat ChatGPT as a second dentist, and you won’t write it off as useless either.
The line, drawn as a table
| Question | Can AI answer it well? | Why |
|---|---|---|
| What does “UR6 RCT” mean? | Yes | It’s notation, the same everywhere |
| Why does a root canal on a back tooth usually need a crown? | Yes | General clinical reasoning, well documented |
| Is £895 for a crown normal in the UK? | Roughly | It knows ranges, but they may be out of date |
| How much would this cost on the NHS instead? | Yes, if you say you’re in England | The band system is public and simple |
| Does my tooth actually need a root canal? | No | Needs X-rays, sensitivity tests, a probe |
| Is that dark patch in my photo decay? | No | Phone photos can’t show what’s under enamel or gum |
| Should I go ahead? | No | Depends on your history, your risk and your priorities |
The first four rows are why the tools are worth opening. The last three are where people get hurt, either by panicking over a photo or by skipping treatment because a chatbot said a filling “might be enough”.
Where chatbots earn their keep
Decoding the plan
Here’s a typical private plan, the kind that turns up at practices all over the country:
TREATMENT PLAN – PRIVATE
UR6 Root canal treatment (molar) £780.00
UR6 Ceramic crown (e.max) £895.00
LL6 MOD composite restoration £210.00
LL8 Surgical extraction £320.00
Hygiene appointment x2 £150.00
---------
TOTAL £2,355.00Paste that into ChatGPT, Claude, Gemini or Microsoft Copilot and you’ll get an accurate translation within seconds. UR6 is the upper right first molar, the sixth tooth counting back from the middle of your face. MOD means a filling that covers three surfaces (mesial, occlusal, distal: the front side, the biting surface and the back side), which is why it costs more than a small one. E.max is a brand of lithium disilicate ceramic, tooth-coloured and strong enough for back teeth. A surgical extraction on LL8, a lower left wisdom tooth, means the dentist expects to cut gum or remove some bone rather than just lift it out.
It will also explain the reasoning that ties the lines together. A root-filled molar becomes brittle, and without a crown it’s much more likely to crack. That’s why the RCT and the crown appear on the same tooth. Your dentist probably said all of this in the chair while you had a bib on and a light in your eyes. Reading it again at your own pace is useful.
Sanity-checking the price
Ask a chatbot “how much does a root canal cost?” without any context and you may get American prices in dollars, or US billing codes like D3330. Tell it where you are. A better prompt looks like this:
I'm in Leeds, England. I've been quoted the following privately.
For each line, give me a typical UK private price range, say
whether it's usually available on the NHS, and tell me which
lines look high or low. Be explicit about how uncertain you are.
[paste plan]What you get back will be in the right ballpark. As a rough guide to what UK private practices charge outside London (London often runs 20 to 40 per cent higher):
| Treatment | Typical private range |
|---|---|
| Check-up | £50–£90 |
| Hygienist visit | £60–£110 |
| White filling, back tooth | £120–£300 |
| Root canal, molar (general dentist) | £500–£1,200 |
| Root canal, molar (specialist endodontist) | £900–£1,500 |
| Crown | £550–£1,200 |
| Surgical extraction | £200–£450 |
| Single implant with crown | £2,000–£3,500 |
So £780 for a molar root canal and £895 for an e.max crown sit comfortably in the middle. A chatbot can tell you that. It can’t tell you what the three practices nearest you charge, and it may confidently quote figures from two years ago. Most practices publish a fee guide on their website, so check three of them against the plan and you’ll have a better benchmark than any model can give you.
The NHS comparison is where AI is most useful and where people are most often surprised. In England, NHS treatment is charged by band, not by item. From April 2025 the charges were £27.40 for Band 1 (examination, X-rays, advice), £75.30 for Band 2 (fillings, root canals, extractions) and £326.70 for Band 3 (anything involving crowns, bridges or dentures). They’re usually reviewed each April, so check the current figures on nhs.uk. Everything in the plan above, done as one NHS course of treatment, would cost a single Band 3 charge. That’s £326.70 against £2,355.
There are catches, and a good chatbot will flag them if you ask. An NHS crown on a back molar is likely to be metal or porcelain fused to metal, not e.max. White fillings on back teeth aren’t routinely provided on the NHS. Hygienist visits may not be included. And finding an NHS dentist taking on adult patients is hard in many areas. Wales, Scotland and Northern Ireland run different charging systems, so name your nation in the prompt.
Preparing for the next appointment
The most underrated use is getting the chatbot to write your questions for you. Ask it: “Based on this plan, what should I ask my dentist before agreeing?” You’ll usually get sensible ones. What happens if I wait six months? Is there a cheaper alternative, and what’s the trade-off? Can I see the X-ray that shows the problem? Which items are urgent and which can be phased? Taking that list into the surgery changes the conversation.
Where it runs out
It cannot see inside your tooth
Whether UR6 needs a root canal or just a deep filling depends on things that never appear on the treatment plan. How did the tooth react to a cold test? Does it hurt when tapped? What does the bitewing X-ray show between the teeth, where decay hides? Is there a dark area at the root tip on a periapical film? Your dentist has that information. ChatGPT has a line of text saying “RCT”.
Uploading a photo doesn’t close that gap. The image features in ChatGPT and Gemini will describe what they see, and they’ll often sound sure of themselves. But a phone photo of a back molar shows the surface of the enamel under bad lighting. Decay between teeth, cracks below the gum line, infection in the bone: none of it is visible. A photo of an X-ray taken off your dentist’s screen is better, but it’s still a compressed image with no clinical history behind it, and general-purpose chatbots aren’t validated for reading radiographs.
It doesn’t know you
Grinding your teeth at night changes whether a crown or a large filling is the sensible choice. Some medications, including bisphosphonates for osteoporosis, change the risk of extractions and implants. Smoking affects how gums heal. A tooth that’s already been refilled three times has a different future from one being treated for the first time. Your dentist weighs all of this, usually without spelling it out.
It tends to agree with you
Chatbots are built to be agreeable, and the way you frame a question shapes the answer. Try two versions of the same prompt:
Prompt A: My dentist wants to do a root canal and crown on UR6
for £1,675. Is this a reasonable plan?
Prompt B: My dentist is pushing a £1,675 root canal and crown on
a tooth that barely hurts. Is this an upsell?Prompt A usually gets a calm explanation of why the two treatments go together. Prompt B tends to get much more about second opinions and checking whether a filling would do. The tooth hasn’t changed. Only your wording has. If you go in already suspicious, the chatbot will usually give you reasons to stay suspicious.
Turning the line into a decision
Once the AI has explained the plan and the price checks out, the question left is a clinical one, and only another clinician can answer it. If the explanation makes sense and the costs look normal, what you’re really deciding is whether you trust this practice. If the explanation leaves you uneasy (“why a crown when the tooth doesn’t hurt?”), you need a second opinion from another dentist, not a second chatbot. A private consultation elsewhere typically costs £50 to £100, which is cheap insurance on a £2,000 plan. Ask the first practice for copies of your X-rays to take with you. You’re entitled to them, and they save the second dentist taking new ones.
For prompts that get better answers, and the kinds of question to keep away from chatbots altogether, our guide to asking AI about your teeth goes into more detail.
If you go ahead and something goes wrong, NHS complaints start with the practice and can be escalated to the Parliamentary and Health Service Ombudsman. Private treatment complaints go to the Dental Complaints Service, which is run by the General Dental Council. A chatbot can help you draft the letter. You’ll need the dates and the treatment plan to hand, so keep the printout.