For most NHS patients, dental insurance is not worth it. NHS care is cheap enough that the premiums usually cost more than the insurance pays back. For private patients in London it can be worth it, but only if the policy’s limits are high enough and the treatment you need is covered.
This guide shows how dental insurance works, what it usually leaves out, and how to work out whether a policy would pay off for you.
How dental insurance works
You pay a monthly premium (the price of the policy). When you have treatment, you pay the dentist, then send the receipt to the insurer. The insurer pays you back part or all of the cost.
There are 2 limits on what you get back:
- A percentage. Many policies pay back more for check-ups than for treatment.
- An annual limit. This is the most the policy will pay in a year for each type of care. Once you reach it, you pay the rest yourself.
Many policies let you use any dentist, NHS or private. Check this before you buy.
Here is one real example. The Simplyhealth Dental Plan starts at £11.95 a month (checked on simplyhealth.co.uk in October 2026). It pays back up to 100% of check-up costs, up to 75% for a scale and polish, and up to 50% for treatment, within annual limits. The “up to” figures and the limits depend on the level of cover you choose. Higher levels cost more each month.
What dental insurance usually does not cover
Read the exclusions before you buy. These are common:
- Problems you already have. If you know you need a root canal before you buy the policy, it will not pay for it. Simplyhealth, for example, does not cover pre-existing conditions or treatment found during the first 3 months.
- A waiting period. Some policies pay nothing for the first few months. For the Simplyhealth plan, cover starts after 3 months.
- Cosmetic treatment. Whitening, veneers and composite bonding are almost never covered.
- Implants. Many policies do not cover implants, or pay only a small part of the cost. A single implant starts at a median £2,100 in London.
Does it pay off for an NHS patient?
Usually not. NHS charges for 2026/27 are:
- Band 1 (check-up, X-rays, scale and polish if needed): £27.90
- Band 2 (fillings, extractions, root canal): £76.60
- Band 3 (crowns, dentures, bridges): £332.10
Say you have 2 NHS check-ups in a year, and one of them shows you need a filling. You pay £27.90 for the first visit and £76.60 for the second. That is £104.50 for the year. A policy at £11.95 a month costs £143.40 a year. Even if it paid back every penny, you would be £38.90 worse off.
Insurance would help an NHS patient only in a year with a lot of Band 3 work, and only if that work was not already known about when you bought the policy. Some people pay no NHS charges at all. See who gets free NHS dental care.
The difficulty in London is finding an NHS place. In our data from October 2026, 342 of 779 London NHS practices said they were taking new adult patients. That is 44%. There is no NHS dental registration, so you can ask any practice. Our guide to finding an NHS dentist in London explains how.
Does it pay off for a private patient?
It can. Here is a typical private year in London, at median prices from our dental price list:
| Care | Median price | Yearly cost |
|---|---|---|
| 2 check-ups | £55 each | £110 |
| 2 hygienist visits | £75 each | £150 |
| 1 white filling | £150 | £150 |
| Total | £410 |
Now apply the Simplyhealth percentages, if your level and limits allow them. You could get back up to £110 for the check-ups, £112.50 for the hygienist visits and £75 for the filling. That is up to £297.50, against premiums of at least £143.40. So in a year like this, you could be about £150 better off.
But the result depends on the annual limits. If the limit for check-ups or treatment is lower than your bills, you get back less. Before you buy, check:
- The annual limit for each type of care, at the level you are quoted
- The monthly price for that level, not the “from” price
- What your own practice charges
Other ways to pay
A dental payment plan
Plans such as Denplan are not insurance. You pay your own practice a monthly fee, and it gives you an agreed set of check-ups and hygienist visits, and often a discount on treatment. There are no claim forms, but the plan only works at that one practice. Our guide to Denplan vs pay-as-you-go compares the costs.
Saving the money yourself
You can put the same amount as a premium into a savings account each month. You can spend it on any treatment, including cosmetic work, with no exclusions or waiting period. The risk is a large bill early on, before you have saved enough.
When dental insurance makes sense
Insurance is more likely to be worth it if:
- You are a private patient and you go to every check-up and hygienist visit
- The policy’s annual limits are close to what your practice charges
- You want help with the cost of a dental accident or an emergency abroad
It is less likely to be worth it if:
- You are an NHS patient, or you get free NHS care
- Your teeth are healthy and you rarely need more than a check-up
- You already know you need treatment, because the policy will not cover it
- You want cosmetic treatment or implants
For private treatment prices, see how much a dentist costs in London.
Prices are London median “from” prices, read in early October 2026. Simplyhealth policy details were checked on simplyhealth.co.uk in October 2026. Insurers change their policies, so read the terms before you buy.