Invisalign vs Braces UK: Costs, Timelines, and How to Choose
Invisalign, at-home aligners, fixed metal, and ceramic braces compared — UK costs, treatment times, who each suits, and when the NHS pays for braces.
By The Local Dentist Editorial · Updated 13 July 2026
The short answer
Clear aligners and fixed braces both straighten teeth effectively — aligners win on appearance and convenience for mild-to-moderate cases, fixed braces win on complex movements and not depending on your discipline to wear them 22 hours a day.
There's no universally better option. The right choice depends on how complex your case is, how visible you're willing for treatment to be, how disciplined you'll be with removable aligners, and your budget. A proper assessment comes first: an aligner provider who hasn't examined your teeth can't tell you aligners will work for you.
Invisalign, at-home aligners, and braces compared
| Option | Typical UK cost | Typical duration | Best for |
|---|---|---|---|
| Invisalign (dentist-supervised aligners) | £1,500–£5,500 | 6–18 months | Mild to moderately complex cases with in-person supervision |
| At-home clear aligners | £1,100–£1,800 | 4–9 months | Mild crowding or spacing in suitable, screened cases |
| Fixed metal braces | £1,500–£3,000 | 12–24 months | Complex cases and the widest range of tooth movements |
| Ceramic (clear) braces | £2,000–£3,500 | 12–24 months | Complex cases where you want fixed braces to be less visible |
Can you get braces on the NHS?
NHS orthodontics is funded for under-18s with a clear clinical need, assessed using the IOTN (Index of Orthodontic Treatment Need) — typically NHS treatment uses fixed metal braces, and waiting lists can be long. Mild or purely cosmetic cases don't qualify. Adult NHS orthodontics is only approved in exceptional clinical circumstances, so if you're an adult wanting straighter teeth, plan for private treatment.
Where clear aligners genuinely win
- Near-invisible in everyday life — most people won't notice them
- Removable for eating, brushing, and flossing, so oral hygiene is easier
- No dietary restrictions — nothing to snap off on crusty bread or toffee
- Usually fewer emergency visits: no brackets or wires to break
- Digital treatment plans show the expected end result before you start
Where fixed braces genuinely win
- Handle complex movements — significant rotations, bite corrections, large gaps — that aligners struggle with
- Always working: nothing to forget to wear, no 22-hours-a-day discipline required
- Often cheaper than dentist-supervised aligners for equivalent complex cases
- The only option usually offered on the NHS for qualifying under-18s
- Ceramic versions reduce visibility if that's the main objection
A word on at-home aligner companies
At-home clear aligner providers post impression kits or offer scanning appointments, then a dentist reviews your case remotely. They're the cheapest route (£1,100–£1,800) and can work well for genuinely mild cases — but you get less in-person supervision, and problems like untracked teeth or gum issues may be spotted later than they would be in a practice. Check the provider gives you a named GDC-registered dentist responsible for your treatment, what its refinement and refund policies are, and that a proper suitability screening happens before any money changes hands. If your case is more than mild, a dentist-supervised option is worth the extra cost.
Costs beyond the headline price
Whichever route you choose, ask about the full lifetime cost: initial consultation and scans (£0–£150, often refunded against treatment), any teeth whitening you're planning after alignment (£250–£700, and legally dentistry only), refinement aligners if teeth don't track to plan, and retainers — typically £100–£300 per set, replaced every few years for as long as you want your teeth to stay put.
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Browse online providersFrequently Asked Questions
Is Invisalign as effective as braces?▼
For mild to moderate cases, dentist-supervised aligners and fixed braces achieve comparable results. For complex movements — significant bite correction, large rotations — fixed braces remain more capable, which is why an in-person assessment should drive the choice.
Are at-home aligners safe?▼
They can be appropriate for genuinely mild cases screened by a GDC-registered dentist, but the reduced in-person supervision means problems can be caught later. Confirm who the named dentist responsible for your treatment is, and avoid any provider that skips a proper suitability check.
Can adults get braces on the NHS?▼
Almost never — NHS orthodontics is for under-18s with a qualifying clinical need, and adult cases are only funded in exceptional circumstances, usually linked to jaw surgery or health conditions.
How much is Invisalign per month in the UK?▼
Many practices offer finance spreading £1,500–£5,500 over 12–36 months, so monthly figures of roughly £60–£200 are common. Compare the total repayable, not just the monthly amount, and check whether the finance is 0%.
The Local Dentist is an independent comparison service, not a dental or orthodontic practice. Prices are indicative UK ranges — suitability and exact costs depend on your teeth, so always start with an assessment by a GDC-registered dentist or orthodontist. Brand names are used factually and don't imply endorsement.
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