Last updated: March 2026. This guide compares every teeth straightening option available in the UK, including metal braces, ceramic braces, lingual braces and clear aligners. All pricing is indicative for 2025/2026 and sourced from orthodontic practices, the NHS, the British Orthodontic Society and the General Dental Council.
More adults than ever are seeking straighter teeth. According to a British Orthodontic Society (BOS) survey, 76% of UK orthodontists reported a rise in adult patients over the past three years, with 83% of those patients aged between 26 and 55. Remote working, video calls and a growing awareness of cosmetic dentistry have all contributed to a sharp increase in demand.
But choosing the right treatment can be overwhelming. Metal braces, ceramic braces, lingual braces, Invisalign, other clear aligners -- each has different costs, treatment times, visibility and suitability. Some options cannot treat complex cases. Others require strict daily compliance. And the gap between NHS availability and private pricing catches many adults off guard.
This guide breaks down every option, compares them side by side, and helps you make an informed decision before booking a consultation.
All Teeth Straightening Options Compared
| Treatment | Private Cost (UK) | Duration | Visibility | Best For | NHS Available? |
|---|---|---|---|---|---|
| Metal braces | £1,800 -- £3,835 | 18--36 months | High | Complex cases; budget-conscious | Children only (IOTN 4--5) |
| Ceramic braces | £2,500 -- £5,000 | 18--36 months | Medium | Adults wanting discreet fixed braces | No |
| Lingual braces | £3,500 -- £8,825 | 6--36 months | None (hidden) | Professionals; maximum invisibility | No |
| Invisalign (Express/i7) | £1,200 -- £2,000 | 3--6 months | Very low | Minor corrections only | No |
| Invisalign (Lite) | £2,500 -- £4,000 | 6--8 months | Very low | Mild to moderate cases | No |
| Invisalign (Full) | £3,500 -- £5,500 | 12--24 months | Very low | Moderate to complex cases | No |
| Other clear aligners | £2,500 -- £4,500 | 6--18 months | Very low | Alternative to Invisalign | No |
Prices are indicative ranges for 2025/2026. Actual costs depend on case complexity, location and practice. London prices are typically 15--20% higher. Always request a written quote before committing to treatment.
Metal Braces
Metal braces remain the most widely used and most affordable private orthodontic treatment. They are also the only type available on the NHS.
How they work: Stainless steel brackets are bonded to the outer surface of each tooth. An archwire runs through the brackets and applies continuous, controlled pressure. At adjustment appointments every 4--10 weeks, the wire is tightened or replaced to move teeth progressively into position. Modern systems use heat-activated nickel-titanium wires that apply lighter, more consistent forces than older designs.
Self-ligating brackets (such as the Damon system) use built-in clips instead of elastic ties, which can reduce friction and appointment times.
Cost: £1,800 to £3,835 for dual-arch treatment. Single-arch treatment starts from approximately £1,800. London practices typically charge £2,500 to £3,500.
Treatment time: 18 to 36 months for most cases. Simple front-tooth alignment can take as little as 6 months; comprehensive bite correction may extend beyond 36 months.
Advantages:
- Most affordable private option
- Effective for all case types, including severe crowding and complex bite corrections
- Very durable -- brackets rarely break
- No patient compliance required (fixed in place)
Disadvantages:
- Most visible option
- Dietary restrictions throughout treatment (avoid hard, sticky and crunchy foods)
- Harder to clean teeth around brackets, increasing the risk of decay
- Discomfort after adjustment appointments
Best for: Budget-conscious adults, patients with complex orthodontic needs, and cases where tooth extractions are part of the treatment plan.
Ceramic (Tooth-Coloured) Braces
Ceramic braces work identically to metal braces but use brackets made from translucent or tooth-coloured ceramic material, making them significantly less noticeable.
How they differ from metal: The brackets are made from polycrystalline alumina or sapphire rather than stainless steel. The archwire may also be tooth-coloured. Clinically, they deliver the same results as metal braces, though ceramic brackets are slightly more fragile.
Cost: £2,500 to £5,000 for dual-arch treatment. Premium sapphire brackets can reach £6,000. The cost premium over metal braces is typically £300 to £1,000.
Treatment time: 18 to 36 months -- comparable to metal braces. Some ceramic systems may add slightly to treatment time due to higher friction in the bracket.
Advantages:
- Much less visible than metal braces
- Same clinical effectiveness as metal
- More affordable than lingual braces or Invisalign
- Suitable for all case types
Disadvantages:
- White elastic ties can stain with coffee, tea, curry and red wine between appointments
- Brackets are slightly more fragile than metal
- Not available on the NHS
- Still visible upon close inspection
Best for: Adults who need fixed braces but want a more discreet appearance, particularly in professional or social settings.
Lingual Braces (Behind the Teeth)
Lingual braces are the only truly invisible fixed option. Brackets are bonded to the inner (tongue-side) surface of the teeth, making them completely hidden from view.
How they work: Because the inner surfaces of teeth vary significantly in shape, lingual brackets must be custom-fabricated for each individual tooth using computer-aided design. The most widely available premium system in the UK is Incognito (by 3M), which uses fully custom gold alloy brackets. The 2D lingual system offers a lower-cost alternative.
Only a small proportion of UK orthodontists offer lingual treatment, as it requires specialist postgraduate training and longer clinical appointments.
"Not all orthodontists offer lingual treatment because it is a complex technique that requires special training and equipment." -- British Lingual Orthodontic Society (BLOS)
Cost: £3,500 to £8,825 for dual-arch treatment. Incognito (fully custom gold alloy) ranges from £4,800 for a single arch to £8,825 for dual-arch treatment. The higher cost reflects custom manufacturing, specialist training and longer appointment times.
Treatment time: 12 to 18 months for most cases (BLOS data). Mild crowding can be treated in as little as 6 months; complex cases may extend to 36 months.
Advantages:
- Completely invisible from the outside
- Effective for a wide range of cases, including complex malocclusions
- Custom-fitted for maximum precision
- Reduced risk of visible white marks on the outer tooth surface
Disadvantages:
- Most expensive orthodontic option
- Tongue soreness in the first weeks
- Temporary speech changes (lisp) for the first few days to weeks
- Fewer providers available -- requires a specialist
- Not available on the NHS
Best for: Professionals, public-facing adults and anyone who wants effective fixed braces without any visible appearance change. The BLOS website provides a directory of qualified providers.
Clear Aligners: Invisalign and Alternatives
Clear aligners are custom-fabricated, removable plastic trays that fit over the teeth. Each tray is slightly different from the previous one, moving teeth in small, programmed increments.
How Clear Aligners Work
- Consultation and scan. The orthodontist takes a 3D digital scan of your teeth using an intra-oral scanner (Invisalign uses iTero). Traditional impressions are rarely needed at modern practices.
- Treatment planning. Specialist software creates a virtual simulation of your tooth movement from start to finish. With Invisalign, this is called ClinCheck -- you can see a preview of your expected result before treatment begins.
- Aligner fabrication. Your full series of custom trays is manufactured and delivered to the practice.
- Active treatment. You wear each tray for 1--2 weeks before moving to the next. Aligners must be worn for 20--22 hours per day -- removed only for eating, drinking anything other than water, and brushing.
- Monitoring. Check-up appointments every 6--8 weeks to review progress.
- Retention. On completion, retainers maintain your result long-term.
Invisalign: Product Tiers and UK Costs
Invisalign is the world's leading clear aligner brand. UK providers must be certified by Align Technology.
| Product Tier | Case Type | Duration | UK Cost |
|---|---|---|---|
| Invisalign i7 (Express) | Very minor corrections (up to 7 trays) | 3--6 months | £1,200 -- £2,000 |
| Invisalign Lite | Mild to moderate (up to 14 trays) | 6--8 months | £2,500 -- £4,000 |
| Invisalign Full | Moderate to complex cases | 12--24 months | £3,500 -- £5,500 |
| Invisalign Comprehensive | Most complex; unlimited refinements | 18--36 months | £4,500 -- £5,500+ |
London pricing typically starts from £4,120 for Invisalign Full.
Important: Always confirm whether retainers are included in the quoted price. Some practices charge separately -- typically £150 to £450 per arch.
Other Clear Aligner Brands in the UK
Several clinician-supervised alternatives to Invisalign are available:
- Spark Aligners (Ormco): Uses TruGEN material marketed as superior clarity. Growing UK provider network. Comparable pricing to Invisalign Full.
- ClearCorrect (Straumann Group): Available at many UK practices, often priced slightly below Invisalign at £2,500 to £4,500.
- SureSmile Aligners (Dentsply Sirona): Dentist-supervised with similar capabilities.
All of these require in-person clinical supervision by a GDC-registered dental professional.
Advantages of Clear Aligners
- Nearly invisible when worn
- Removable for eating, drinking and cleaning -- no dietary restrictions
- Easier to maintain oral hygiene than fixed braces
- Comfortable -- no brackets or wires to irritate the mouth
- Digital treatment planning allows you to preview your expected result
- Fewer clinical appointments than fixed braces
Disadvantages of Clear Aligners
- Must be worn 20--22 hours per day -- requires significant discipline
- Not suitable for severe or complex cases (see below)
- More expensive than metal braces for comparable results
- Can be removed and therefore neglected, reducing effectiveness
- Teeth must be cleaned before reinserting after eating
When Clear Aligners Are Not Suitable
The British Orthodontic Society notes that aligners are effective for mild crowding but may not be suitable for:
- Teeth rotated more than 20 degrees
- Crowding or spacing exceeding 6mm
- Significant vertical tooth movement requirements
- Severe bite corrections
- Active gum disease or significant untreated decay
Your orthodontist will advise whether aligners are clinically appropriate for your case. If they are not, fixed braces may be recommended instead.
Warning: Direct-to-Consumer (DTC) Aligners
The General Dental Council (GDC), British Orthodontic Society and Care Quality Commission have all raised serious concerns about direct-to-consumer aligner services.
DTC models typically involve taking home impressions or visiting a scanning pod, with treatment supervised remotely rather than through regular in-person appointments.
"Direct-to-consumer orthodontic services fall within the legal definition of dentistry and can only be performed by a GDC-registered dental professional." -- General Dental Council
The SmileDirectClub Collapse
The largest DTC aligner provider, SmileDirectClub, filed for bankruptcy in October 2023 and ceased all global operations by December 2023. Approximately 65,000 UK patients were left without care, aftercare or refunds. The company had supervised its entire UK patient base with just 5 GDC-registered dentists -- a ratio of roughly 13,000 patients per clinician.
Specialist orthodontists have since reported treating patients with complications from unsupervised DTC treatment, including poor bite outcomes, teeth pushed beyond safe limits and irreversible bone loss.
How to Protect Yourself
The CQC notes that home impression kits "may not be accurate enough for diagnosis or for fabricating the aligners." Before starting any aligner treatment, ensure:
- You receive a full in-person clinical examination
- A named, GDC-registered clinician is responsible for your care
- You have direct access to that clinician if problems arise
- You receive a full explanation of risks, benefits, alternatives and retention requirements
Red flags to avoid: Any provider that does not require an in-person examination; providers where you cannot identify a named GDC-registered clinician; prices significantly below the supervised market rate.
NHS vs Private Teeth Straightening for Adults
One of the most common misconceptions is that adults can access teeth straightening on the NHS. In practice, NHS orthodontic treatment is not routinely available for adults in England, Wales, Scotland or Northern Ireland.
"Orthodontic treatment is not usually available on the NHS for adults." -- NHS
Who Can Access NHS Orthodontics?
NHS orthodontic treatment is primarily available to children under 18 who meet clinical eligibility criteria, assessed using the Index of Orthodontic Treatment Need (IOTN):
| IOTN Grade | Description | NHS Eligible? |
|---|---|---|
| Grade 1 | Near-perfect alignment | No |
| Grade 2 | Minor irregularities | No |
| Grade 3 | Moderate irregularities | Borderline (assessed individually) |
| Grade 4 | Severe irregularities, significant overjet, impacted teeth | Yes |
| Grade 5 | Very severe -- treatment needed for dental health | Yes |
The only adults who may access NHS orthodontics are those with severe clinical need treated through hospital orthodontic services -- for example, patients requiring combined orthodontic and jaw surgery, or those with cleft palate. This affects a very small number of people.
NHS Orthodontic Charges (If Eligible)
For eligible children under 18, NHS orthodontic treatment is completely free.
For the rare adult cases treated on the NHS, orthodontics falls under Band 3:
| Nation | Adult NHS Charge |
|---|---|
| England | £326.70 (from 1 April 2025) |
| Scotland | 80% of cost, capped at £384; free for under-26s |
| Wales | 50% of cost, capped at £384 |
| Northern Ireland | 80% of cost, capped at £384 |
The NHS Waiting Time Crisis
Even for eligible children, access is severely constrained. A British Dental Journal study (July 2025) found:
- 351,208 children waiting for NHS orthodontic assessment in England
- Only 1 of 42 NHS regions met the 18-week treatment target
- The longest single documented wait was 6.6 years
For most adults, private treatment is the only realistic route to straighter teeth.
How to Choose the Right Teeth Straightening Option
The single most important factor is clinical suitability -- not every treatment can address every case. Your orthodontist will assess which options are appropriate during your consultation.
Beyond clinical suitability, consider these factors:
By Visibility Preference
| If You Want... | Consider |
|---|---|
| Maximum invisibility (truly hidden) | Lingual braces |
| Nearly invisible (hard to spot) | Clear aligners |
| Discreet but fixed | Ceramic braces |
| Most affordable (appearance less important) | Metal braces |
By Budget
| Budget | Options |
|---|---|
| Under £2,000 | Metal braces (single arch); Invisalign Express (minor cases) |
| £2,000 -- £4,000 | Metal braces (dual arch); ceramic braces; Invisalign Lite; ClearCorrect |
| £4,000 -- £6,000 | Ceramic braces; Invisalign Full; lingual braces (2D system) |
| £6,000+ | Lingual braces (Incognito); Invisalign Comprehensive |
By Lifestyle
- If you want guaranteed results without relying on willpower: Fixed braces (metal, ceramic or lingual) stay in place 24/7. You cannot forget to wear them or skip days.
- If you prefer flexibility and comfort: Clear aligners let you eat and drink freely, but you must wear them 20--22 hours daily. Non-compliance significantly extends treatment time.
- If you have a public-facing role: Lingual braces or clear aligners offer maximum discretion for meetings, presentations and client interactions.
A Decision at a Glance
| Priority | Recommended Option |
|---|---|
| Lowest cost | Metal braces |
| Most invisible | Lingual braces |
| Most convenient | Clear aligners |
| Most versatile (any case) | Metal or ceramic braces |
| Fastest (mild cases) | Invisalign Express (3--6 months) |
What to Expect at a Teeth Straightening Consultation
A first orthodontic consultation typically involves:
Clinical examination: A full assessment of your teeth, gums, jaw joints and facial profile. The orthodontist checks for existing problems (decay, gum disease) that need treating before orthodontics can begin.
Diagnostic records: Panoramic X-rays, clinical photographs and -- at most modern practices -- a 3D digital scan of your teeth using an intra-oral scanner. Digital scanning has largely replaced traditional alginate impressions and is faster, more comfortable and more accurate.
Treatment discussion: The orthodontist explains which treatment options are clinically appropriate, provides duration estimates and gives you a written treatment plan with full costs.
"A full dental examination will take place, followed by an assessment of your teeth. You may also have some photographs and/or X-rays taken, and impressions (moulds) of your teeth. These allow your specialist to work out a treatment plan." -- British Orthodontic Society
Questions to Ask Your Orthodontist
The BOS recommends asking these six questions at your consultation:
- How long will treatment take?
- Will the results be stable long-term?
- How long will I need to wear retainers after treatment?
- What are the risks of this particular treatment?
- What is the total cost -- and are retainers included?
- Who will carry out my treatment -- an orthodontist, dentist or therapist?
Do not feel pressured to commit at the consultation. Take your written treatment plan home, compare quotes from 2--3 providers, and make your decision carefully.
Paying for Teeth Straightening: Finance and Payment Options
Cost is the primary barrier for most adults. The good news is that 0% interest finance is widely available across UK orthodontic practices.
0% Interest Payment Plans
Most private practices offer 0% APR finance over 12 to 36 months. Here is what typical monthly payments look like:
| Treatment | Total Cost | Term | Monthly Payment |
|---|---|---|---|
| Metal braces | £2,500 | 12 months | ~£208 |
| Ceramic braces | £4,000 | 12 months | ~£333 |
| Clear aligners (mid-range) | £3,500 | 18 months | ~£194 |
| Invisalign Full | £5,000 | 24 months | ~£208 |
| Lingual braces | £6,500 | 24 months | ~£271 |
Terms beyond 36 months typically attract interest (commonly 7.9% APR). A credit check is required for all finance applications.
Other Payment Options
- Upfront payment discount: Many practices offer 5--10% off for paying the full cost upfront
- Practice payment plans: Some practices offer in-house instalments without a third-party credit check
- Dental insurance: Most standard dental insurance policies exclude orthodontics. Where orthodontic cover exists, it typically has a 12-month waiting period and limited benefit (e.g., Bupa offers up to £400 on selected plans)
Retainer Costs
Retainers are essential after all orthodontic treatment. Budget for these separately unless your practice includes them:
| Retainer Type | Cost Per Arch |
|---|---|
| Fixed bonded retainer (wire behind teeth) | £100 -- £400 |
| Removable retainer | £150 -- £450 |
| Replacement retainer | £100 -- £250 |
"Retainers are essential and should be universally recommended." -- British Orthodontic Society
Verifying Your Provider
Before committing to any orthodontic treatment, take these steps:
- Check the GDC Register at gdc-uk.org -- all practising dental professionals must be listed
- Check the GDC Specialist List for registered specialist orthodontists (recommended for complex cases)
- Find a BOS member at bos.org.uk using their patient search tool
- For lingual braces, use the BLOS directory at blos.co.uk
- Confirm CQC registration (England) at cqc.org.uk
Under UK law, providing orthodontic treatment without GDC registration is a criminal offence.
Frequently Asked Questions
Can adults get teeth straightening on the NHS?
In almost all cases, no. NHS orthodontic treatment is reserved for children under 18 who meet clinical eligibility (IOTN Grade 4 or 5). The only adults who may qualify are those with severe clinical need requiring hospital-based treatment, such as combined orthodontic and jaw surgery. For most adults, private treatment is the only option.
What is the cheapest way to straighten teeth in the UK?
Metal braces are the most affordable option, starting from approximately £1,800 for single-arch treatment. For very minor corrections, Invisalign Express (i7) starts from £1,200. With 0% finance over 12--36 months, monthly payments can be as low as £150--£200. Always compare written quotes from 2--3 providers before deciding.
How long does teeth straightening take?
Treatment duration depends on case complexity and treatment type. Minor corrections with Invisalign Express can take 3--6 months. Most moderate cases with fixed braces or full aligner treatment take 12--24 months. Complex cases may extend to 36 months or beyond. Your orthodontist will provide a personalised estimate at your consultation.
Is Invisalign as effective as braces?
For mild to moderate cases, clear aligners like Invisalign can achieve comparable results to fixed braces. However, for severe crowding, complex bite corrections or teeth requiring significant rotation, fixed braces (metal, ceramic or lingual) remain more effective. The British Orthodontic Society notes that aligners are best suited to milder cases. Your orthodontist will advise which option is clinically appropriate.
Are clear aligners safe?
Clinician-supervised clear aligners (such as Invisalign, Spark and ClearCorrect) are safe and clinically proven when prescribed and monitored by a GDC-registered dental professional. The safety concerns relate specifically to direct-to-consumer models that lack adequate clinical supervision. The GDC, BOS and CQC have all warned against unsupervised aligner treatment.
Do I need retainers after teeth straightening?
Yes -- retainers are essential after all orthodontic treatment, regardless of which method you choose. Without retainers, teeth will gradually shift back towards their original position. This is a natural biological tendency, not a sign of treatment failure. Most orthodontists recommend wearing retainers long-term: typically full-time for the first few months, then nightly indefinitely.
How do I choose between an orthodontist and a dentist for teeth straightening?
Both GDC-registered orthodontists and general dentists with additional training can provide orthodontic treatment. For complex cases, a specialist orthodontist (who has completed a minimum of 3 additional years of training beyond a dental degree) is recommended. For straightforward cases, an experienced general dentist may be suitable. The BOS recommends checking your clinician's qualifications on the GDC Register.
Taking the Next Step
Choosing the right teeth straightening treatment starts with a professional consultation. An orthodontist will assess your teeth, explain which options are suitable for your case, and provide a clear written treatment plan with costs.
Use Dentists Closeby to find orthodontic and cosmetic dental practices near you, compare options and book your consultation.
