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Add up to 3 clear aligner providers in the UK to see them side by side. Details come from our reviews; open a review for sources and the full picture.
| Detail | Six Month Smiles | Invisalign | |
|---|---|---|---|
| Treatment | |||
| ApproachA scan records your teeth; it is not a dental examination. | Dental exam In-person check-ups | Dental exam In-person check-ups | |
| How it startsAn impression kit or a scan records the teeth. Check whether a dentist examines you in person. | A consultation and records appointment with a trained Six Month Smiles dentist, who may offer clear braces, aligners or both. | An examination and 3D scan with an Invisalign-trained dentist or orthodontist. | |
| Check-ins and monitoring | In the practice. How often depends on whether you have braces or aligners, so ask your dentist. | An in-person examination and scan. Your practice sets check-ups, which may combine in-person visits with remote progress checks. | |
| Who plans and supervises | Your dentist. The company says plans are made by specialists and overseen by an orthodontist. | Your treating dentist or orthodontist plans and supervises treatment. | |
| Cost | |||
| Treatment priceCheck whether a price covers one arch or both, and what it includes. | Personal quoteQuote from your practice No patient price is published. Checked 26 October 2026 | Practice fees£2,000 to £4,100 Three UK practices publish both-arch fees from about £2,000 to about £4,100. These are fees at practices we checked, not the provider's price; your practice sets yours after an examination. Checked 26 October 2026 | |
| Aftercare | |||
| Retainers | Ordered at the end of treatment. Ask whether they are in your fee. | Many practices offer Vivera retainers. Whether they are included depends on the quote. | |
| RefinementsConditions often apply. The review has the detail. | For aligners, the company's standard case includes two refinements within two years for the dentist; relapse aligners include none. Ask whether your fee includes them. | Extra aligners can be ordered if needed. Whether they cost extra depends on the quote. | |
| Our review | |||
| Full review | Updated 26 October 2026 Read the Six Month Smiles review | Updated 26 October 2026 Read the Invisalign review |
Add another provider
In alphabetical order. This is not a ranking.
Reviewed but not available to compare
- Diamond Whites Impress acquired Diamond Whites, and new cases are now quoted at an Impress clinic.
- NewSmile Its aligners could not be ordered online when we checked on 27 October 2026: the order button led to a missing page, and the shop listed no aligners.
Who is included. A provider can be compared when we have a current review, new patients can start with it in the UK, and we could confirm how treatment starts and how progress is checked. A missing price never rules a provider out: practice-set fees are shown as practice fees or as a quote. Being listed is not a recommendation.
Providers that have closed, changed or could not be confirmed are listed under Looking for another provider? on the reviews page. Prices and terms change, so confirm them with the provider before you pay.
Not sure where to start? Our guide to the best clear aligners in the UK explains which providers we would look at first, and why.
