Stained Teeth After Braces: What Whitening Can And Cannot Do

Stained teeth from braces can mean two quite different things, and they need different answers. White spots that form on the teeth during braces are what dental researchers call white spot lesions, and a 2026 article in the British Dental Journal describes one as "an area of initial surface demineralisation". A whitening strip is not a treatment for them, we make no claim that ours does anything to them, and the published evidence on what bleaching does to how they look is thin, so the orthodontist or dentist is the person to ask before you whiten. Yellow or brown discolouration can be stain that has built up on the enamel, which whitening does act on, or it can be a mark that a dentist needs to see. This guide explains the difference, what the named sources say, and where whitening fits.

Stained teeth from braces: two different problems

The phrase covers two things that look different and behave differently:

• White spots or white marks on the enamel, on teeth that are otherwise their usual colour.
• Yellow or brown discolouration, across the teeth or in patches.

They differ in what they are, in what whitening can do about them, and in who you should ask. The rest of this page takes them one at a time.

What the white spots after braces are

The British Orthodontic Society (BOS) puts it in one sentence on its page about lingual braces: "A small risk of orthodontic treatment is decalcification, an attack on tooth enamel producing white marks, usually the result of poor diet and poor oral hygiene."

The British Dental Journal article, written by authors from the Department of Orthodontics at The Royal London Hospital, uses the clinical name. Its abstract opens: "White spot lesions (WSLs) are a frequent complication of orthodontic treatment." It goes on: "A WSL represents an area of initial surface demineralisation and occurs most commonly due to an excess dietary intake of fermentable carbohydrates and poor plaque control."

So a white spot is a change to the enamel itself, not something deposited on top of it. That is the first reason to ask a dentist about one before you think about whitening.

The second reason is that a white spot can be more than a cosmetic question. The NHS page on tooth decay lists "white, brown or black spots on your tooth" among the things you may have if there is a hole in the tooth. That is not a reason to assume the worst about a mark, and it is not a reason to assume the best either. It is a reason to let a dentist look.

Can whitening remove white spots from braces?

We make no claim that our strips remove, hide or change white spots. This section sets out what the research does say, so you can see why we stop there.

The research on whitening and white spots is mostly laboratory work, the evidence is thin, and it does not all point the same way.

• The American Dental Association (ADA) writes on its whitening page that "brown stains due to fluorosis or tetracycline may be more responsive to bleaching than white stains associated with fluorosis or orthodontic treatment, which may appear less noticeable as the background of the tooth lightens." Put simply, a white mark may respond less to bleaching than those brown stains, and may look less noticeable as the rest of the tooth lightens around it. The ADA is describing bleaching in general, not our strips.
• A systematic review in Oral Health and Preventive Dentistry (Gizani and colleagues, 2020) set out to find all the available studies of bleaching on white spots after orthodontic treatment, and found one clinical trial and eight laboratory studies. It reported that "bleaching of WSL can diminish colour disparities between carious and non-affected areas, but the certainty of the evidence was very low", and concluded that its findings "could not support or refute bleaching as an effective method for management of post-orthodontic WSLs."
• A 2025 laboratory study in Clinical Oral Investigations (Barbosa and colleagues) bleached 40 extracted premolars, half of them with white spot lesions created in the laboratory, using at-home bleaching with 16% carbamide peroxide and in-office bleaching with 35% hydrogen peroxide. Its conclusion: "White spot lesions exhibited greater HP permeability and less favorable optical outcomes compared to sound teeth, particularly after in-office bleaching." HP is hydrogen peroxide. The authors' clinical note then suggests that, of the two protocols tested, the at-home one, using 16% carbamide peroxide, may be the more favourable option for managing white spot lesions. That is a judgement about peroxide gels at those strengths, and one for a dentist to make. The study was partly funded by Brazil's CNPq and CAPES, the companies DMG (Germany) and FGM (Brazil) donated products, and the authors declare no competing interests.

Put together: a white spot is a change in the enamel, the evidence on bleaching one is limited and of very low certainty, and none of it is about our strips. That is why we make no claim either way. Our strips are designed to whiten natural teeth. Whether to whiten when white spots are present, and what can be done about the spots themselves, are questions for the orthodontist who did your treatment or for your dentist. The British Dental Journal article notes that "General dental practitioners are often the primary clinician managing these lesions", and that "The evidence demonstrating which is the most effective treatment for these lesions is currently inconclusive." Ask them first.

Yellow or brown stain after braces

Yellow or brown is a different question, and it can have more than one cause.

Some of it is ordinary stain. The ADA's definition is that "Extrinsic stains commonly result from an accumulation of colored compounds on enamel." It adds that extrinsic stains "can be exacerbated by lifestyle habits (e.g., smoking or chewing tobacco), poor oral hygiene, or frequent consumption of pigmented food or beverages."

None of the sources on this page says that a brace itself stains teeth. They do treat marks as a risk of orthodontic treatment, and what they connect those marks to is cleaning and diet. The NHS is plain about braces: "It's very important to keep your teeth and braces clean."

Some of it is not stain. The BOS patient leaflet on the risks of orthodontic treatment warns: "If you do not keep your teeth and brace clean, you risk ending up with permanent white or brown marks on your teeth." And the NHS includes brown spots, alongside white and black ones, among the things you may have if there is a hole in a tooth. So brown is not automatically something whitening deals with.

We cannot tell from a description which kind of brown you have, and this page will not try. Whitening does act on stain that has built up on the enamel. A permanent mark, a spot in one place, or anything that has appeared alongside pain is for a dentist to see first.

Yellow has its own set of causes, from the colour of the tooth underneath to stain and tartar, and we have taken them apart in our guide to what makes teeth look yellow. For the wider picture of which stains you can lift yourself and which need a dentist, see our guide on how to remove stains from teeth.

What whitening strips can and cannot do after braces

For stain on the enamel and for the colour of natural teeth, whitening is the tool that acts on them. The first key point on the ADA's whitening page is that "Whitening treatments can be effective on both extrinsic and intrinsic staining."

Our PAP teeth whitening strips use PAP, short for phthalimidoperoxycaproic acid. It is peroxide free, and it still works on the coloured compounds inside the tooth, just by a gentler route than peroxide takes. The chemistry is set out in PAP teeth whitening explained.

The ADA names carbamide peroxide and hydrogen peroxide as the agents commonly used in whitening, and the laboratory study above used both. If peroxide is the thing you would rather avoid, our page on peroxide-free teeth whitening explains what the term means.

After braces come off, the NHS says "you'll need to wear a retainer, which is a device that stops your teeth moving back to their original position." With that in mind, here is what to expect from strips, and where the limits sit:

• What they can do. Work on stain built up on the enamel and on the colour of the natural tooth, up to 6 shades whiter in 14 days, depending on where you start. That figure is a ceiling, not a promise.
• White spots. We make no claim. Ask your orthodontist or dentist before you whiten.
• Dental work. Strips cannot change the base colour of crowns, veneers, fillings or bonding, but they can lift staining that has built up on them.
• New stain. They will not hold a result in place while you are still adding new stain.
• Retainers. If you wear a retainer, you can use the strips, but not while the retainer is in.
• Age. The strips are not suitable for children under 12.

A course of Pure Glow strips is one strip a day for 14 days, worn for a minimum of 30 minutes each time. Brush first, dry your teeth with a towel, and put the smaller strip on the bottom teeth first. If you are new to whitening, our beginner's guide to teeth whitening at home covers the whole process.

What the named sources say about caring for teeth during braces

If you are still wearing braces, the sources on this page put the weight on cleaning, diet and check-ups. This is their advice, not ours.

• The NHS says to "brush your teeth using fluoride toothpaste in the morning, at night and after meals", to "use an interdental brush to clean between your teeth and underneath your braces every day", and to "keep having regular dental check-ups while you're wearing your braces". It also says "do not eat too much sugary food and drink because it can cause problems like tooth decay".
• The Oral Health Foundation says "Good oral hygiene is essential during orthodontic treatment." Its list includes "Clean carefully around brackets and wires." and "Attend regular check-ups with your dentist as well as orthodontic visits."
• The BOS leaflet adds: "If you have too many sweets, sugary foods, fruit drinks or fizzy drinks, you also risk ending up with marks on your teeth."

Who to ask, and when

• White spots after braces: the orthodontist who did your treatment, or your dentist, before you whiten.
• A brown, white or black spot in one place, or pain: a dentist.
• When to start whitening after braces come off: your orthodontist. None of the sources on this page gives a waiting time.
• Everything else: the NHS says "You should have regular dental check-ups even if you do not have any problems."

Frequently asked questions

Do braces stain your teeth?
None of the sources on this page says the brace itself stains teeth. They do link braces with marks: the BOS calls decalcification, which produces white marks, "a small risk of orthodontic treatment", and the British Dental Journal article calls white spot lesions "a frequent complication of orthodontic treatment". Both connect those marks to diet and cleaning, and the BOS warns of "permanent white or brown marks" when teeth and brace are not kept clean.

Are white spots from braces permanent?
The BOS leaflet uses the word "permanent" for marks left when teeth and brace are not kept clean. The British Dental Journal article describes several management options and says the evidence on which works best "is currently inconclusive". Whether anything can be done about your own white spots is a question for your dentist or orthodontist.

Will whitening strips get rid of white spots after braces?
We make no claim that they will. The research on bleaching white spots is mostly laboratory work, and a 2020 systematic review of the studies then available rated the certainty of the evidence very low. Ask your orthodontist or dentist before you whiten.

Can whitening make white spots more noticeable?
None of the sources on this page says that it does. The ADA says white stains from orthodontic treatment may respond less to bleaching than some brown stains, and may appear less noticeable as the rest of the tooth lightens, while a laboratory study found teeth with white spots had less favourable results than sound teeth. The laboratory study used peroxide gels, not strips, and none of this is about our strips. Because the outcome is uncertain, ask before you start.

How do I get rid of yellow or brown stains after braces?
First find out which kind it is. Whitening does act on stain built up on the enamel. A permanent mark, or a spot in one place, needs a dentist to see it first.

How soon after braces can I whiten my teeth?
None of the sources on this page gives a waiting time. Ask your orthodontist.

Can I use whitening strips with braces or a retainer?
With clear aligners or a retainer, yes, but not while the aligners or retainer are in. If fixed braces are still on your teeth, ask your orthodontist.

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Related reading:

• Why coffee and tea stain teeth
• How to keep teeth white
• Whether whitening strips work
• Whitening around bonding and veneers

Sources:

• British Orthodontic Society, Lingual Braces. bos.org.uk
• British Orthodontic Society, Orthodontic Treatment: What Are The Risks? (patient information leaflet). bos.org.uk
• Keogh A, Alfadil L, Johal A. Contemporary management of white spot lesions following orthodontic treatment. British Dental Journal 2026;240:537-541. Department of Orthodontics, The Royal London Hospital, Barts Health NHS Trust; no conflicts of interest declared. Abstract read at source. doi:10.1038/s41415-026-9528-7
• Gizani S, Kloukos D, Papadimitriou A, Roumani T, Twetman S. Is bleaching effective in managing post-orthodontic white-spot lesions? A systematic review. Oral Health and Preventive Dentistry 2020;18. One clinical trial and eight laboratory studies; certainty of evidence very low. doi:10.3290/j.ohpd.a44113
• Barbosa LMM, Baracco B, Carneiro TS, Favoreto MW, Wendlinger M, Jiménez-Díez D, Ceballos L, Loguercio AD. Impact of bleaching on white spot lesions: hydrogen peroxide permeability and color alteration. Clinical Oral Investigations 2025;29:401. A laboratory study on 40 extracted premolars using peroxide gels, not strips; partly funded by CNPq and CAPES, products donated by DMG and FGM, no competing interests declared. Abstract read at source. doi:10.1007/s00784-025-06490-3
• American Dental Association, Oral Health Topics: Whitening, last updated 16 August 2022. A United States source. ada.org
• NHS, Braces, page last reviewed 29 June 2026. nhs.uk
• NHS, Tooth decay, page last reviewed 13 August 2025. nhs.uk
• Oral Health Foundation, Orthodontic treatment (braces), last reviewed 14 March 2026. dentalhealth.org