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Comparison

Braces vs clear aligners: which is right for you?

Fixed braces and clear aligners compared on visibility, what they can fix, comfort, cleaning, NHS availability and the importance of retainers.

Fixed braces and clear aligners both move teeth by applying gentle, steady pressure, and both need retainers afterwards. The big differences are how visible they are, how much they rely on you, and how complex a problem they can handle.

The British Orthodontic Society says aligners are most commonly used for mild to moderate crowding or spacing without extractions, while fixed braces remain the most popular appliance and can manage a wider range of problems. Whatever you choose, a face-to-face assessment by a GDC-registered dentist or orthodontist - with X-rays where needed - should come first.

FeatureFixed bracesClear aligners
How it works Brackets bonded to each tooth, linked by a wire that is adjusted at regular appointments.A series of custom clear plastic trays, each moving the teeth a small step.
Visibility Clearly visible (tooth-coloured ceramic or hidden lingual versions exist, usually privately).Nearly invisible.
Best suited to Most orthodontic problems, including severe crowding, extraction cases and complex bite corrections.Mild to moderate crowding or spacing without extractions, often in adults; complex or jaw-related problems may need fixed braces too.
Relies on you wearing it No - it is fixed in place and works full-time.Yes - aligners must be worn full-time, day and night, apart from meals.
Eating Avoid hard, sticky and chewy foods and chewing gum.Taken out to eat, so fewer food restrictions.
Cleaning Harder - brush after meals and use interdental brushes around brackets and under the wire.Easier to brush and clean between teeth because the trays come out.
Comfort Teeth usually ache for a few days after fitting and adjustments.Some discomfort is possible as teeth move; there are no brackets or wires.
Typical treatment time Often 1 to 2 years, longer for complex problems.Depends on the case; orthodontic treatment ranges from several months to around two and a half years.
NHS availability Free for under-18s who meet the IOTN need threshold; adults usually private.Generally private.
Retainers afterwards Essential, usually long term.Essential, usually long term.

So which is right for you?

If your problem is complex - severe crowding, teeth that need removing, or a bite problem linked to the jaws - fixed braces are more likely to be recommended. They are also the standard NHS option for children who qualify.

If you are an adult with mild to moderate crowding or spacing, want a discreet option, and are confident you will wear the trays nearly all day and night, clear aligners can be a good fit.

Be cautious about any service that offers aligners without an in-person examination: the General Dental Council says there is currently no effective substitute for a physical clinical examination before orthodontic treatment. A good orthodontist will explain all the suitable options, with their risks and benefits.

Helpful products

Some links may be affiliate links.

OPRO Gold mouthguard for braces

A self-fit sports mouthguard shaped to sit over fixed braces. Braces can change fit over time, so check with your orthodontist –…

Features & who it suits

TePe Bridge & Implant Floss

Pre-cut spongy floss with stiff ends that thread under wires, bridges and around implants – handy for anyone with fixed braces.

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Sources we used

Checked September 2026. Guidance changes, so always follow the advice of your own dental team. About our sources.