Written by Christina Boman-Markaki, reviewed by the Find Care Compare team · Last updated October 2026
At a glance
- NHS orthodontic treatment is mainly for under-18s and is free if your child qualifies.
- Eligibility depends on the IOTN score. Grades 4-5 qualify, and grade 3 qualifies only with an aesthetic score of 6 or above.
- You usually need a referral from your dentist, and NHS waits can be over two years in some areas.
- Adults approved for NHS treatment who aren't exempt pay the Band 3 charge of £332.10.
- Private treatment typically costs £1,500-£6,000+. Clear aligners such as Invisalign are only available privately.
What is orthodontic treatment?
Orthodontic treatment in the UK uses braces, aligners and other devices to move teeth into better positions. It can be used to correct crowding, spacing, protruding teeth and bite problems such as overbites or underbites.
Treatment is carried out by orthodontists - dental specialists who have completed additional postgraduate training beyond a general dentistry degree.
Types of orthodontic appliance include:
- fixed metal braces
- removable appliances
- functional appliances
- clear or ceramic braces
- clear aligners such as Invisalign
- retainers
Who qualifies for NHS orthodontics?
NHS orthodontics in England is mainly available to under-18s whose teeth score highly enough on the Index of Orthodontic Treatment Need (IOTN). Adults can access NHS orthodontics in limited circumstances, but eligibility is much more restricted.
Eligibility is assessed using the Index of Orthodontic Treatment Need (IOTN). This is a clinical scoring system that rates dental health need on a scale of 1 to 5. Grades 4 and 5 qualify automatically. Grade 3 qualifies only with an aesthetic component score of 6 or above - a bare grade 3 is borderline and does not automatically qualify.
IOTN grades are broadly:
- Grade 1-2: Little or no treatment need - NHS funding is not usually available
- Grade 3: Moderate need - borderline for NHS eligibility; qualifies only with an aesthetic component score of 6 or above
- Grade 4-5: Significant need - NHS treatment is available
An NHS-contracted orthodontist will carry out the IOTN assessment, usually following a referral from a general dentist.
How to access NHS orthodontic treatment
Accessing NHS orthodontics usually follows these steps.
- 1GP or dentist identifies orthodontic need
- 2Referral to NHS orthodontist
- 3IOTN assessment appointment
- 4Added to NHS waiting list (if eligible)
- 5Treatment begins
- 6Retention phase
Step 1: Visit your dentist
Your general dentist will assess your teeth and, if they think orthodontic treatment may be appropriate, refer you to an NHS orthodontist. You cannot usually self-refer for NHS orthodontics.
Step 2: IOTN assessment
An orthodontist will assess your IOTN score. Grades 4 and 5 qualify automatically; grade 3 qualifies only with an aesthetic component score of 6 or above. If your score does not meet the threshold, you will be advised to consider private treatment if you wish to proceed.
Step 3: Join the waiting list
NHS orthodontic waiting lists vary significantly by area. In some parts of England, waits can exceed two years. If your child is assessed young, ask about local waiting times - treatment often needs to start at a specific stage of dental development.
Step 4: Treatment begins
Once called from the waiting list, treatment typically starts with the fitting of braces. Most NHS orthodontic treatment takes between 18 months and two years to complete.
How much does NHS orthodontic treatment cost?
NHS orthodontic treatment is free for eligible patients under 18. For the small number of adults approved for NHS orthodontics who are not otherwise exempt, it is charged as an NHS Band 3 course of treatment - currently £332.10. This single charge covers all appointments, adjustments, and the first retainer, plus 12 months of supervised retention.
Adults approved for NHS braces may not have to pay. Check if your treatment is free.
Are you in pain, or do you have swelling or bleeding right now?
NHS braces vs private orthodontics: a comparison
| NHS orthodontics | Private orthodontics | |
|---|---|---|
| Eligibility | Children under 18 with IOTN grade 4-5, or grade 3 with aesthetic component 6+ (adults in limited cases) | Open to anyone |
| Cost | Free for eligible under-18s; £332.10 Band 3 charge for approved adults who are not exempt | £1,500-£6,000+ depending on treatment type |
| Waiting time | Months to years, varies by area | Usually weeks |
| Brace types available | Primarily fixed metal braces | Full range including clear aligners |
| Invisalign / clear aligners | Not available on NHS | Available from most private orthodontists |
| Orthodontist choice | Limited to NHS-contracted providers | Full choice of provider |
| Treatment length | Typically 18-24 months | Varies by case and product |
| Retainer included | Yes, plus 12 months supervised retention | Usually yes, check with provider |
Private orthodontics costs and options
Private orthodontic treatment in the UK typically costs £1,500-£6,000 or more, depending on the type of brace and how complex your case is. Patients who do not qualify for NHS treatment, or who prefer not to wait, have a wide range of private options. Prices are indicative and vary by region, complexity and whether one or both arches are treated.
Compare private orthodontic providers near you
See which private practices near you offer braces and clear aligners. Compare them on price, waiting times and the treatments they provide, so you can shortlist the right one before you book a consultation.
What you'll get
- Private orthodontic providers, side-by-side
- Braces and clear aligner options
- Prices and waiting times to compare
Fixed metal braces are the same type as those used on the NHS and are the most cost-effective private option, typically starting from around £1,500-£2,500.
Ceramic or clear fixed braces use tooth-coloured brackets instead of metal, making them less visible. These typically cost £2,000-£5,000.
Lingual braces are fixed to the back of the teeth and are barely visible from the front. They typically cost £3,000-£6,000 or above.
Clear aligners (such as Invisalign) use a series of custom-made removable trays to gradually move teeth. They are popular with adults who prefer a discreet option. Costs vary significantly by case complexity, typically ranging from £2,000-£5,500.
Should my child see an NHS or private orthodontist?
If your child is under 18 and has a genuine orthodontic need, it is usually worth pursuing an NHS referral first. Even if NHS treatment is available, some families choose to go private to access shorter waiting times or a wider choice of brace type.
If your child scores below the IOTN threshold, NHS treatment will not be available regardless of how their teeth look. If they do qualify, the main reason to consider going private is waiting time - a long NHS wait can affect when treatment starts, and timing matters for younger patients.
If you have a preference for a specific brace type, such as clear aligners, you will need to go privately. Most practices offer payment plans, which can make the cost more manageable.
See what's available in your area
See NHS and private orthodontic providers near you and compare your options in one place. Check waiting times, prices and the brace types each practice offers, so you can weigh up an NHS referral against going private.
What you'll get
- NHS and private dental providers, side-by-side
- Urgent and routine appointments
- Compare your options in one place
Frequently asked questions
Sources and information
This guide summarises publicly available information from UK health authorities. Sources consulted:
- NHS.uk - Braces and orthodontics
- NHS.uk - Orthodontic treatments
- NHS.uk - How much NHS dental treatment costs (updated April 2026)
- NHSBSA - What is IOTN?
- NHSBSA - Who is entitled to orthodontic treatment?
- British Orthodontic Society - Orthodontics and the NHS
- British Dental Journal (2025) - Waiting lists for NHS orthodontic care in England: how long are children waiting?
- NHSBSA - Current NHS dental charges (from 1 April 2026)
