Last updated: July 2026. Written by the Dentists Closeby editorial team. Sources: NHS.uk, GOV.UK "Delivering better oral health" toolkit, the Adult Oral Health Survey 2023, NHSBSA, GOV.WALES, gov.scot, nidirect, the General Dental Council and the British Dental Journal.
TL;DR: Tooth enamel erosion is acid wearing away the hard outer layer of your teeth, and it is not the same thing as decay. Enamel cannot grow back once it is gone. Early damage can be hardened with fluoride, but visible wear needs a dentist and a restoration.
Seventy-one per cent of adults in England now show some degree of tooth wear, according to the Adult Oral Health Survey 2023 [1]. Most of them have no idea. Erosion is slow, painless in its early stages and easy to mistake for teeth simply "getting older" or "going yellow", which is exactly why so many people only notice once the damage is obvious.
This guide explains what enamel erosion is, what causes it, whether enamel can ever be restored, how UK dentists measure it, and what treatment realistically costs on the NHS and privately in 2026.
What tooth enamel erosion actually is
Tooth enamel erosion is the chemical loss of tooth surface caused by acid, without bacteria being involved. Acid from food, drink, stomach contents or certain medications dissolves the mineral in enamel, softening the surface and gradually washing it away. GOV.UK's "Delivering better oral health" toolkit describes tooth wear more broadly as the cumulative loss of mineralised tooth substance through chemical or mechanical factors, or both together [2].
This is the single most important distinction in this article: erosion is not decay. Tooth decay, properly called dental caries, is caused by plaque bacteria feeding on sugar and producing acid in a concentrated spot, which drills a hole. Erosion is acid from outside the plaque process, dissolving broad surfaces evenly. Both involve acid; the mechanism, the pattern of damage and the prevention advice are different.
Enamel begins to dissolve when the pH at the tooth surface drops below a critical value of around 5.5 [3]. Dentine, the softer and less heavily mineralised yellow layer underneath, has no such protection to spare. That matters, because once erosion breaks through the enamel and exposes dentine, the surface underneath is softer than the layer that has just been lost.
Erosion, attrition and abrasion: the three types of tooth wear
Dentists group tooth wear into three mechanisms. Most patients have a combination rather than one in isolation, and softened enamel from acid is much easier to physically wear away, so the mechanisms compound each other.
| Type of wear | What causes it | Typical pattern |
|---|---|---|
| Erosion | Chemical acid dissolution, with no bacteria involved | Broad, smooth, shiny or "cupped" surfaces; often the inner surfaces of upper front teeth if the acid is from the stomach |
| Attrition | Tooth grinding directly against tooth | Flat, matching wear facets on biting surfaces, commonly linked to grinding and clenching |
| Abrasion | An outside abrasive agent rubbing the tooth | Notches at the gum line, classically from aggressive brushing with a hard brush |
You may also see abfraction mentioned, a theory that flexing under bite stress causes notches at the gum line. The GOV.UK toolkit notes that abfraction lacks strong clinical evidence as a distinct separate cause [2], so treat it as a contested idea rather than an established fact.
If your wear is mainly grinding related, our guide to teeth grinding and night guard costs covers the treatment options in more depth.
Early signs of enamel erosion you can spot at home
Enamel erosion rarely announces itself. The following changes are worth raising at your next check-up rather than waiting for pain.
- Teeth looking more yellow. Thinning enamel lets the naturally yellow dentine beneath show through. This is a structural change, not a stain.
- Edges of the front teeth looking see-through. A greyish, translucent band along the biting edge of the upper front teeth is a classic early sign.
- Small dents or "cups" on the biting surfaces of back teeth, sometimes with a shiny rim of metal filling standing slightly proud of the surrounding tooth.
- Teeth feeling smoother or more rounded, with the natural ridges and texture flattening out.
- New or increasing sensitivity to cold, sweet or acidic things.
- Chipping along the edges, or teeth that suddenly look shorter.
Sensitivity is a symptom that overlaps with several other conditions, so it is worth reading our full guide to sensitive teeth causes and treatment alongside this one. Similarly, if your main concern is colour rather than shape, why teeth change colour covers staining, which is a different problem with different solutions.
What causes enamel erosion
Diet: it is about frequency and timing, not just what you drink
The official UK position is less about naming villain drinks and more about how often acid hits your teeth. GOV.UK's toolkit advises that, where there is evidence of tooth wear, patients should reduce the frequency of acidic food and drink, keep acidic items to mealtimes, explore alternatives between meals, and avoid swilling or swishing acidic drinks around the mouth [4].
That last point matters more than most people realise. A can of something acidic drunk in five minutes with a meal does far less damage than the same can sipped over two hours at a desk, because each sip resets the clock on the acid attack and saliva never gets a chance to recover the pH.
Commonly acidic items include fizzy drinks (including sugar-free ones, because the acid is not the sugar), fruit juices and smoothies, sports and energy drinks, citrus fruit, vinegar-based dressings and pickles, and wine. UK government guidance does not publish a ranked acidity league table of individual drinks, so be wary of any article that presents one as official.
On sparkling water specifically: US laboratory research indicates plain, unflavoured sparkling water is only minimally erosive compared with soft drinks, while flavoured versions containing citric acid are measurably more erosive. This is American research provided here as clinical context only, not UK guidance.
Medical causes
Acid reflux (gastro-oesophageal reflux disease) is a well-documented cause of erosion, particularly on the palatal surfaces, meaning the inner faces of the upper front teeth, where stomach acid pools [5]. Reflux erosion is often the first sign a dentist spots before a patient has connected their symptoms to anything dental.
Dry mouth increases erosion risk because saliva is the mouth's own defence system. Saliva dilutes acid, buffers pH back towards neutral and supplies the calcium and phosphate needed for remineralisation. Reduced salivary flow from medication, radiotherapy, some medical conditions or simple dehydration removes that protection.
Some medications carry a direct acid load. Chewable vitamin C tablets are strongly acidic, with a pH around 2.3, and prolonged use has been linked to severe erosion in published case reports [6]. Some evidence also suggests certain asthma inhalers may contribute by lowering oral pH and reducing salivary flow, though this evidence is more mixed and it is not the subject of specific NHS warnings.
Reflux, morning sickness and eating disorders
Anything that brings stomach acid into the mouth repeatedly will erode teeth, and there are three common situations worth naming plainly.
Pregnancy sickness. Frequent vomiting during pregnancy exposes teeth to gastric acid. NHS dental care is free during pregnancy and for 12 months after giving birth [7], so there is no cost barrier to getting checked. Our dental care during pregnancy guide covers what is safe and what is covered.
Long-term reflux. If a dentist spots erosion on the inner surfaces of your upper front teeth and you have not mentioned heartburn, they may ask about it. Treating the reflux is part of protecting the teeth; restoring the teeth without addressing the acid source means the new work erodes too.
Eating disorders. Repeated self-induced vomiting causes a recognisable pattern of erosion, and dentists are sometimes the first health professionals to see physical evidence. If you recognise yourself here, this is a health issue rather than a dental failing, and support exists. The NHS eating disorders pages explain the options and how to get help [8], and Beat, the UK eating disorders charity, runs an adult helpline on 0808 801 0677 and a youth helpline on 0808 801 0711. A dentist can help protect your teeth in the meantime, and you do not have to explain more than you want to.
Can tooth enamel grow back?
No. Mature enamel cannot regenerate. The cells that build enamel, called ameloblasts, exist only while a tooth is forming and are lost once it erupts into the mouth. There is no biological mechanism for growing new enamel, which is why enamel is unique among the body's hard tissues in having no repair capacity at all.
What fluoride and saliva genuinely can do is remineralise, and the difference between remineralisation and regrowth is where most marketing claims go wrong.
| What remineralisation can do | What it cannot do |
|---|---|
| Drive minerals back into an early, softened, non-cavitated surface layer | Rebuild tissue that has physically been lost |
| Harden and arrest very early damage before a surface breaks down | Fill in a dent, a cup, a notch or a shortened tooth |
| Make enamel more acid resistant going forward | Restore a worn tooth's original shape or thickness |
So the honest answer to "can my enamel repair itself" is: early, invisible damage can be hardened and stopped from progressing. Anything you can see or feel as a change in tooth shape is permanent tissue loss and only a dentist can rebuild it. Treat any product promising to "regrow" or "regenerate" enamel with scepticism.
Should you wait before brushing after acid or vomiting?
This is where popular advice and official UK guidance part company, and it is worth being precise.
Almost every dental article online repeats a firm "wait 30 minutes before brushing" rule after acidic food or vomiting. The GOV.UK toolkit's own advice for patients with frequent vomiting is to rinse the mouth with water, then apply fluoride toothpaste with a finger to improve the taste, or use a fluoride mouthwash [2]. The toolkit does not present a specific waiting time as strongly evidence based.
The practical takeaway is unchanged in spirit: do not scrub acid-softened enamel with a brush. Rinse with water first, get fluoride onto the teeth, and let saliva do its job. But the precise "30 minutes" figure is a rule of thumb rather than a firmly evidenced threshold, and it is worth knowing the difference when you read confident claims elsewhere.
For everyday brushing itself, GOV.UK recommends a fluoride toothpaste of 1,350 to 1,500 parts per million for adults, a smear of at least 1,000ppm for children under three, and a pea-sized amount of at least 1,000ppm for children aged three to six [9]. Higher strength 2,800 and 5,000ppm toothpastes exist for people at high risk, but these are prescription-only and your dentist decides whether they are appropriate.
How a dentist diagnoses and monitors tooth wear
Erosion is primarily a clinical diagnosis, made by looking at and feeling the teeth rather than by scanning them.
The Basic Erosive Wear Examination, or BEWE, is the standard screening index used in UK practice. The mouth is divided into six sextants and the worst affected surface in each is scored from 0 to 3: 0 means no visible wear, 1 means initial loss of surface texture, 2 means a distinct defect affecting less than half the surface, and 3 means hard tissue loss of half the surface or more. The sextant scores are added into a cumulative score that guides how intensively the wear should be managed and monitored [10]. This is the same index used in the national Adult Oral Health Survey [1], which is why the survey's prevalence figures are directly comparable to what your own dentist records.
Monitoring matters more than a single reading. Because tooth wear is normal to a degree and accumulates over a lifetime, the clinically important question is not "is there wear" but "is it getting worse". Dentists track this with clinical photographs and study models or digital scans taken at intervals, then compare shape and tooth height over time.
X-rays are not a reliable way to find early erosion. Radiographs detect differences in mineral density, and a substantial amount of mineral has to be lost before surface wear shows up. One comparative imaging study found digital dental radiography detected distinct enamel wear with a sensitivity of 0.56, and tooth wear involving dentine with a sensitivity of 0.57, against 0.82 and 0.79 respectively for three-dimensional optical coherence tomography [11]. X-rays remain essential for checking what is happening inside and beneath the tooth, but erosion itself is diagnosed by eye.
Regular check-ups are what make monitoring possible in the first place. Our guide to how often you should visit the dentist explains how recall intervals are set in the UK.
Treatment options for worn teeth
Treatment escalates with severity. A great deal of erosion needs no restoration at all, just prevention and monitoring.
- Prevention and monitoring only. For early wear, the correct treatment is to remove the acid source, apply fluoride and photograph the teeth for comparison later. Restoring teeth that are not yet damaged enough to need it starts a lifelong cycle of replacing restorations.
- Fluoride varnish and desensitising treatment. Applied in the surgery to harden the surface and settle sensitivity.
- Composite bonding and build-ups. Tooth-coloured composite is added to rebuild worn edges and biting surfaces, restoring shape and protecting exposed dentine. This is the workhorse treatment for moderate anterior wear. See our composite bonding cost guide for detail.
- Onlays and crowns. Where wear is extensive and a tooth needs full coverage to survive, a lab-made restoration is used. Our dental crowns cost guide covers materials and longevity.
- Veneers. Thin facings used mainly for worn front teeth. See our veneers cost guide.
- Full-mouth rehabilitation. For severe generalised wear where the bite itself has collapsed, a planned reconstruction across many teeth. This is complex, individually priced work.
What treatment costs on the NHS and privately
NHS charges in England
NHS dental charges in England are banded, and the band is set by the most complex item in your course of treatment. From 1 April 2026 the charges are [12]:
| Band | Charge | What it covers relevant to tooth wear |
|---|---|---|
| Band 1 | £27.90 | Examination, diagnosis, X-rays where clinically needed, preventive advice, fluoride application, scale and polish where clinically needed |
| Band 2 | £76.60 | Everything in Band 1 plus fillings and composite build-ups, root canal treatment and extractions |
| Band 3 | £332.10 | Everything in Bands 1 and 2 plus crowns, inlays, onlays, dentures and bridges |
| Urgent | £27.90 | Urgent care such as temporary fillings and abscess drainage |
One charge covers a whole course of treatment, so multiple build-ups completed in one course cost one Band 2 charge, not one per tooth. If you are unsure which band your treatment falls into, our NHS dental charges guide explains the banding rules in full.
The clinical need test is what decides NHS eligibility. The NHS funds treatment for tooth wear where there is genuine clinical need, meaning pain, sensitivity, functional problems or a tooth at risk of breaking down further. It does not fund treatment sought purely to improve appearance. NHS.uk states plainly that veneers "are generally only available privately, unless you can show a clinical need for them", and that teeth whitening "is cosmetic and therefore generally only available privately" [13].
Charges elsewhere in the UK
The four nations charge very differently, and outdated information circulates widely.
| Nation | How you are charged |
|---|---|
| England | Fixed bands: £27.90, £76.60 or £332.10 per course of treatment [12] |
| Wales | Fixed, regulation-set fee per care package, summed and capped at £384 per course. Examples include £25.00 for a recall examination, £36.03 for simple restorative work on up to four teeth and £140.44 for a crown, bridge, inlay, onlay or veneer package. Examinations are free for under-25s and over-60s [14] |
| Scotland | Examinations are free for everyone. All treatment is free for under-26s. Other adults pay 80% of the cost, capped at £384 per course [15] |
| Northern Ireland | Patients pay 80% of the cost, capped at £384 per course of treatment [16] |
Wales does not charge a percentage of anything. The Welsh system replaced its old three-band structure in April 2026 with fixed fees per care package, capped at £384 in total [14]. If you read that Welsh patients pay "50% of the treatment value", that is wrong.
Free NHS treatment
You do not pay NHS dental charges at all if you are under 18, or under 19 and in full-time education; pregnant or have had a baby in the last 12 months; an NHS hospital inpatient treated by a hospital dentist; receiving Income Support, income-based Jobseeker's Allowance, income-related Employment and Support Allowance, Pension Credit Guarantee Credit or qualifying Universal Credit; or holding a valid NHS Tax Credit Exemption Certificate or an HC2 certificate [7]. An HC3 certificate gives partial help. You will need to show proof.
Private costs
Private fees for restoring worn teeth are set independently by each practice and vary substantially by region, material and how many teeth are involved. There is no published UK-wide private price list from any official body, so treat confident single figures elsewhere with caution and ask your practice for a written treatment plan with itemised costs before agreeing to anything.
The most reliable official data point available is from the Competition and Markets Authority, which opened a market study into private dentistry on 5 March 2026 and noted that initial consultation fees rose by around 23% to £80, and routine check-ups by around 14% to £55, between 2022 and 2024 [17]. That study is ongoing, with a final report due in March 2027, which tells you something in itself about how variable private dental pricing currently is.
Why whitening will not fix worn teeth
This is the most common wrong turn patients make with erosion, so it deserves its own section.
When enamel thins, teeth look yellower because more of the naturally yellow dentine underneath shows through. That is an anatomical change, not a stain. Whitening agents work by oxidising stain molecules within the tooth; they lighten discolouration but they do not add tissue back. If the yellowness is caused by thinned enamel, whitening cannot correct it, and it may increase sensitivity, because peroxide passes more readily through thinned enamel to the dentine and pulp beneath. The fix for worn, yellow-looking teeth is restorative, not cosmetic bleaching. Our teeth whitening cost guide sets out what whitening can and cannot achieve.
A safety warning worth taking seriously: tooth whitening is legally the practice of dentistry in the UK. The General Dental Council states that whitening "can only safely and legally be offered by registered dental professionals", following the High Court decision in General Dental Council v Jamous (2013), and that the maximum strength of hydrogen peroxide a dentist may use for cosmetic whitening is 6% [18]. Beauty salons, mobile whitening services and whitening parties run by non-registrants are committing a criminal offence, and illegal operators have been found using products far above the legal limit. If your teeth are already eroded, the risk of harm from an unregulated high-concentration product is higher still.
How to stop erosion getting worse
You cannot regrow enamel, but you can almost always stop the process.
- Cut the frequency of acid exposure rather than trying to eliminate acidic food entirely. Keep acidic drinks to mealtimes and stop grazing on them [4].
- Do not swill or swish acidic drinks around your mouth [4]. A straw helps for cold drinks.
- Rinse with water after acid exposure or vomiting, then use fluoride toothpaste or a fluoride mouthwash [2].
- Do not brush immediately after acid. Softened enamel abrades easily.
- Use a 1,350 to 1,500ppm fluoride toothpaste and spit rather than rinsing it away [9].
- Use a soft brush and gentle pressure. Hard scrubbing adds abrasion on top of erosion.
- Treat the underlying cause. Reflux, dry mouth and repeated vomiting need addressing medically, not just dentally.
- Get the wear monitored so you and your dentist know whether it is stable or progressing.
When to see a dentist about worn teeth
Book an appointment if your teeth are becoming sensitive, look shorter or more transparent at the edges, are chipping, or if you have noticed a colour change that brushing does not touch. Erosion sits alongside a group of everyday mouth symptoms that are worth a dentist's opinion rather than a wait-and-see approach. Book sooner if you have persistent reflux, are vomiting frequently for any reason, or have a dry mouth that will not resolve, because the dental consequences build quietly in all three cases.
If you have not seen a dentist in years, that is not a reason to keep putting it off. Erosion assessed today is almost always cheaper and simpler to manage than erosion assessed in five years, because the intervention scales with the damage: prevention and fluoride at one end, crowns and full-mouth work at the other.
Frequently Asked Questions
Can tooth enamel grow back?
No. Mature enamel is acellular and cannot regenerate, because the cells that produce it are lost once the tooth erupts. Fluoride and saliva can remineralise very early, non-cavitated damage, hardening the surface and stopping progression, but tissue that has physically been lost can only be replaced by a dental restoration.
What is the difference between enamel erosion and tooth decay?
Erosion is tooth surface dissolved by acid from food, drink or the stomach, with no bacteria involved, and it affects broad areas evenly. Decay is caused by plaque bacteria metabolising sugar and producing acid in one concentrated spot, creating a cavity. Both involve acid, but the mechanism and the prevention differ.
Does enamel erosion always cause sensitivity?
No. Erosion is often completely painless in its early stages, which is why it goes unnoticed. Sensitivity typically appears once enamel has thinned enough to expose or approach the dentine underneath. Absence of sensitivity is not evidence that your enamel is intact, so wear is worth checking at routine appointments.
Can I get NHS treatment for worn teeth?
Yes, where there is genuine clinical need, such as pain, sensitivity, functional difficulty or a tooth at risk of breaking down. Fluoride treatment falls under Band 1 at £27.90 in England, composite build-ups under Band 2 at £76.60, and crowns or onlays under Band 3 at £332.10. Purely cosmetic improvement is not NHS funded.
Should I brush my teeth straight after being sick?
Official UK guidance advises rinsing your mouth with water, then applying fluoride toothpaste with a finger or using a fluoride mouthwash. Brushing acid-softened enamel immediately risks abrading it. The widely repeated "wait 30 minutes" rule is common advice rather than a firmly evidenced threshold in the GOV.UK toolkit.
Does sparkling water erode tooth enamel?
Plain, unflavoured sparkling water appears only minimally erosive compared with soft drinks, according to US laboratory research offered here as clinical context rather than UK guidance. Flavoured sparkling waters containing citric acid are measurably more erosive. As with any acidic drink, frequency and sipping habits matter more than the drink itself.
Will teeth whitening fix worn, yellow teeth?
No. Whitening lightens stain molecules but cannot rebuild lost enamel or mask the yellow dentine showing through thinned enamel. It may also increase sensitivity on worn teeth. Yellowness caused by tooth wear is a structural problem that needs restorative treatment such as bonding, onlays or veneers instead.
Can you see enamel erosion on an X-ray?
Not reliably, especially in the early stages. X-rays detect differences in mineral density, and substantial mineral loss is needed before surface wear becomes visible. Research shows radiography has lower sensitivity than newer imaging techniques for detecting enamel wear. Erosion is diagnosed clinically, by direct visual and tactile examination.
The bottom line
Enamel erosion is common, largely preventable and entirely irreversible once tissue is lost. The three things that matter are catching it early, identifying the acid source, and monitoring whether it is progressing rather than reacting only when teeth are visibly damaged. None of that requires expensive treatment; it requires a dentist looking at your teeth regularly and recording what they see.
If you are not currently registered with a dentist, or you have been meaning to get worn or sensitive teeth looked at, search for a GDC-registered dentist in your area on Dentists Closeby and compare practices near you.
Sources
- Adult Oral Health Survey 2023: Clinical Oral Health -- GOV.UK, published 17 December 2025, accessed 2026-07-29
- Delivering better oral health: Chapter 7, Tooth wear -- GOV.UK, updated 10 September 2025, accessed 2026-07-29
- The use of hydroxyapatite toothpaste to prevent dental caries -- Odontology, 2021, accessed 2026-07-29
- Delivering better oral health: Chapter 10, Healthier eating -- GOV.UK, updated 10 September 2025, accessed 2026-07-29
- Gastrointestinal conditions related to tooth wear -- British Dental Journal, accessed 2026-07-29
- Dental erosion from an excess of vitamin C -- PMC, accessed 2026-07-29
- Who can get free NHS dental treatment -- NHS.uk, last reviewed 11 February 2025, accessed 2026-07-29
- Eating disorders overview -- NHS.uk, accessed 2026-07-29
- Delivering better oral health: Chapter 8, Oral hygiene -- GOV.UK, updated 10 September 2025, accessed 2026-07-29
- Recommendations and guidelines for dentists using the basic erosive wear examination index (BEWE) -- British Dental Journal, accessed 2026-07-29
- Diagnosis of occlusal tooth wear using 3D imaging of optical coherence tomography ex vivo -- Sensors (Basel), 2020, accessed 2026-07-29
- What is included in each NHS dental band charge -- NHS.uk, last reviewed 13 March 2025, charges current from 1 April 2026, accessed 2026-07-29
- Dental treatments -- NHS.uk, last reviewed 8 July 2026, accessed 2026-07-29
- NHS dental charges and exemptions -- GOV.WALES, updated 27 July 2026, accessed 2026-07-29
- Removal of NHS dental charges for all young people -- gov.scot, accessed 2026-07-29
- Health service dental charges and treatments -- nidirect, accessed 2026-07-29
- Private dentistry market study notice -- Competition and Markets Authority, 5 March 2026, accessed 2026-07-29
- Tooth whitening: what the law says -- General Dental Council, accessed 2026-07-29
