Why NHS and Private Quotes for the Same Treatment Differ So Much

You’ve been handed two numbers for what looks like the same job. NHS: £326.70 for a crown. Private: £895. The obvious explanation is that the private dentist is charging you £570 for nicer chairs and a coffee machine in reception.

Usually that isn’t what’s happening. Most of the NHS vs private dental cost difference comes from three things you can’t see on the quote: what the tooth is made from, how long the dentist spends on it, and which laboratory makes it. Once you know which of those is driving your quote, you can tell whether the extra money buys you anything that matters for your tooth.

The NHS price isn’t a price for your treatment

This is the part almost nobody explains. In England, NHS dental charges are set in three bands, and the band covers a whole course of treatment, however much work that involves. For 2025/26 the charges in England were:

These figures usually go up each April, so check nhs.uk for the current year. Scotland, Wales and Northern Ireland run separate systems with different charges, so if you’re outside England, don’t use this table.

What the table doesn’t show you is how the practice gets paid. An NHS dentist earns “units of dental activity” (UDAs) under their contract. A Band 3 course is worth 12 UDAs, and UDA values typically sit somewhere around £28 to £40 depending on the contract. So the practice receives roughly £340 to £480 for a Band 3 course, and that figure is the same for one crown or for three crowns plus a root canal.

Read that again, because it changes how you should look at your quote. The NHS fee isn’t calculated from the cost of your treatment. It’s a flat rate, and the practice has to make the work fit inside it.

Where the private money actually goes

Take a single crown on a back molar. Here’s roughly how the costs break down, using typical figures from UK practices:

The lab fee alone can account for a few hundred pounds of the gap. A high-end UK lab with an experienced ceramist charges far more than a lab built for NHS volume, and some NHS work goes to overseas labs to keep costs down. Neither is automatically bad, but they’re not the same product.

Then there’s time. Dental surgery time costs a private practice something like £250 to £400 an hour once you’ve counted the nurse, the rent, the equipment and the sterilisation. An extra 45 minutes on a crown prep (more careful margins, a second check of the bite, retaking a scan that isn’t quite right) adds £200 or more before anyone has made a profit.

Profit exists, of course. It just turns out to be a smaller slice than people assume.

Three worked examples

Example 1: one crown on a back tooth. NHS quote £326.70, private quote £895 for a zirconia crown. The tooth is at the back, it chews hard, nobody sees it. A well-made metal-ceramic NHS crown is a perfectly sound clinical choice here. The private version is stronger in some respects and won’t show a grey line at the gum, but if your budget is tight, this is the case where NHS is most likely good enough.

Example 2: root canal plus two crowns. This is where the gap gets enormous. NHS: still £326.70, because it’s one Band 3 course. Private: perhaps £750 for the molar root canal, plus £895 per crown, so £2,540. That’s a £2,213 difference.

The thing to notice is that the NHS practice is being paid the same fee for this as for Example 1. A molar root canal done properly can take 90 minutes or more, sometimes over two visits. Ask the NHS dentist directly how long they’ll spend on it and whether they use a rubber dam (a thin sheet that keeps saliva out of the tooth; it should be used for every root canal, NHS or private). If the answer is vague, that’s informative.

Example 3: three fillings on back teeth. NHS Band 2: £75.30 for all three, likely amalgam (silver) fillings, which the NHS still allows on back teeth for most adults. Private white composite: £120 to £250 each, so £360 to £750. Composite takes longer to place because it has to be built up in layers and kept completely dry. Amalgam is durable and well-proven. The private money here is mainly buying appearance and a slightly more tooth-conserving preparation.

When the extra money matters

Some situations genuinely justify going private, or paying privately for one part of the plan:

• A front tooth. Colour matching on an incisor is skilled work, and a lab that charges £300 will usually do it better than one that charges £60. You’ll look at this tooth in every photo for 15 years.
• A complex or repeat root canal. Curved roots, a previously failed treatment, or a tooth the dentist calls “tricky”. A specialist endodontist using a microscope will cost £900 to £1,500, but that can be the difference between keeping the tooth and paying £2,500 for an implant later.
• A tooth holding up a bridge or with very little left of it. Precision matters more when the margin for error is small.
• Anything cosmetic. Whitening, veneers for appearance and white crowns on back teeth are generally not available on the NHS at all.

On a straightforward back tooth with plenty of structure left, the extra money matters least.

You can mix the two

People often don’t realise this is allowed. An NHS dentist can treat you on the NHS for most of the plan and offer a private option for one item, provided they’ve written it down and you’ve agreed. They aren’t allowed to tell you that a clinically necessary treatment is “not available on the NHS” just to steer you private. If the NHS version is clinically appropriate, you’re entitled to it.

So a sensible plan might look like: NHS Band 3 for the exam, fillings and back-tooth crown, plus a private e.max crown on the front tooth. You’d want the treatment plan form (in England, the FP17DC) to show clearly which items are NHS and which are private.

Using ChatGPT or Claude to read your quote

AI tools like ChatGPT, Claude, Gemini and Microsoft Copilot are good at turning a treatment plan into plain English and spotting what’s missing. They can’t examine your mouth, so treat them as a way of preparing questions for the dentist, not as a second opinion on your diagnosis.

Type out your plan, or paste it in, and use a prompt along these lines:

I'm in England. My dentist has given me this treatment plan:

- Exam and 2 bitewing X-rays
- Root canal treatment, lower left first molar (tooth 36)
- Crown on tooth 36
NHS quote: Band 3, £326.70
Private quote: root canal £750, zirconia crown £895, total £1,645

Please:
1. Explain each item in plain English.
2. Tell me which parts of the private price difference are likely
   to come from materials, lab fees and chair time.
3. List 5 questions I should ask the dentist to decide whether
   the private option is worth it for this specific tooth.
4. Tell me what's missing from the quote (e.g. temporary crown,
   review appointments, what happens if the root canal fails).
Don't tell me which option to choose.

The last line matters. Without it, chatbots tend to give a confident recommendation they have no basis for. What you want out of it is a list of questions, something like: “Which lab makes the crown?”, “Will you use a rubber dam and a microscope?”, “Is the crown fee refundable if the root canal fails before it’s fitted?”, “What material would the NHS crown be?”

Check the price ranges it gives you against real practice fee lists. Most private practices publish theirs online, and you can sense-check typical figures in our guide to dental costs in the UK. If a chatbot quotes NHS band charges, verify them on nhs.uk, because models are often a year or two out of date on those exact figures.

A quick way to read your own gap

Take the private total, subtract the NHS band charge, and divide by the number of items. In Example 2 that’s £2,213 across three items, roughly £740 each. Then ask the dentist one question per item: what’s different about the private version of this one? If the answer is a named material, a named lab, a longer appointment or a specialist, you’re looking at real costs. If the answer is “it’s just better”, ask again.

A dentist who can explain where every £100 goes is usually worth the money. If they can’t, take the plan somewhere else for a second quote.