Tooth Erosion

What is tooth erosion?

Tooth erosion is the gradual loss of enamel caused by repeated exposure to acid. Unlike tooth decay, which is driven by bacteria producing acid from sugar, erosion occurs when acid directly attacks the tooth surface and dissolves the mineral structure of enamel. Over time, this weakens the tooth, alters its shape and colour, and increases sensitivity and vulnerability to damage.

Enamel is the hardest substance in the human body, but it is not indestructible. Frequent acid exposure softens the enamel surface, allowing microscopic layers to be worn away. Once enamel is lost, it does not regenerate. As erosion progresses, the softer dentine layer beneath becomes exposed, accelerating damage and increasing discomfort.

Tooth erosion can affect people of all ages. It often develops slowly and silently, meaning significant damage may occur before symptoms become noticeable. Early identification and management are essential to protect long-term tooth health.

Why tooth erosion matters

Tooth erosion permanently weakens the structure of the tooth. As enamel thins, teeth become more sensitive to temperature changes and pressure. They may appear more yellow because dentine shows through the translucent enamel layer. Edges of teeth can become thin, chipped or uneven, affecting both function and appearance.

Advanced erosion can lead to flattening of biting surfaces, changes in bite height and increased strain on jaw muscles and joints. Teeth affected by erosion are also more vulnerable to cracking and fracture.

Because enamel cannot regrow, prevention and early management are critical. Without intervention, erosion can progress to the point where extensive restorative treatment is required to rebuild lost tooth structure.

Causes and risk factors

Dietary acids

Frequent consumption of acidic foods and drinks is one of the most common causes of erosion. This includes fizzy drinks, fruit juices, sports drinks, wine, citrus fruits and vinegar-based foods. Sipping acidic drinks slowly or frequently throughout the day prolongs acid contact with the teeth and increases damage.

Acid reflux and gastric conditions

Stomach acid is extremely strong. When acid reflux or gastro-oesophageal reflux disease occurs, stomach acid can travel into the mouth, especially at night. Repeated exposure to gastric acid can cause severe erosion, particularly on the inner surfaces of the teeth.

Frequent vomiting

Conditions such as eating disorders, pregnancy-related sickness or medical treatments that cause repeated vomiting expose teeth to stomach acid. This significantly increases erosion risk and often leads to rapid enamel loss.

Dry mouth

Saliva neutralises acid and helps remineralise enamel. When saliva flow is reduced, acid remains on the teeth for longer periods, increasing erosion risk. Dry mouth may result from medications, dehydration or medical conditions.

Occupational exposure

Some professions involve exposure to acidic environments or airborne chemicals. Workers in industrial settings, wine tasting or laboratory environments may have higher erosion risk if protective measures are not used.

Aggressive oral hygiene habits

Brushing immediately after consuming acidic foods or drinks can worsen erosion because enamel is softened by acid and more vulnerable to abrasion. Using abrasive toothpaste or brushing too forcefully also contributes to enamel wear.

Symptoms

Tooth erosion may cause a variety of symptoms, including:

• Increased sensitivity to cold, hot or sweet foods
• Teeth appearing more yellow or darker
• Smooth, shiny or glassy tooth surfaces
• Thinning or translucent edges of front teeth
• Flattened biting surfaces
• Small cracks or chips
• Changes in tooth shape
• Discomfort when eating acidic foods
• Increased vulnerability to wear and breakage

Early erosion may be symptom-free, making regular dental assessment important.

How tooth erosion affects oral health

As enamel wears away, the tooth becomes structurally weaker. Dentine exposure increases sensitivity and risk of decay because dentine is softer and more porous. Erosion also alters the bite surface, which can affect chewing efficiency and place uneven forces on remaining enamel.

Loss of enamel reduces the tooth’s ability to withstand everyday wear. This increases the likelihood of fractures, especially in people who grind their teeth. In severe cases, erosion can affect multiple teeth and lead to widespread functional and aesthetic problems.

Diagnosis

Diagnosis focuses on identifying enamel loss patterns and contributing factors.

• Clinical examination – assessing surface texture, shape changes and translucency.
• Photographic monitoring – tracking progression over time.
• Bite assessment – evaluating wear patterns and pressure distribution.
• Dietary review – identifying acid exposure habits.
• Medical history review – screening for reflux or vomiting conditions.
• Saliva assessment – evaluating dryness and buffering capacity.
• X-rays when required – assessing deeper structural involvement.

Accurate diagnosis allows targeted prevention and treatment planning.

Treatment and management

Preventing further acid damage

The first priority is reducing acid exposure. This may involve dietary changes, modifying drinking habits and addressing reflux or medical causes. Small changes, such as using a straw for acidic drinks or limiting frequency of acid intake, can significantly reduce ongoing damage.

Strengthening remaining enamel

Fluoride treatments help strengthen enamel and improve resistance to acid attack. High-fluoride toothpaste and professional fluoride applications support remineralisation and reduce sensitivity. Remineralising agents may also be recommended to support enamel repair at early stages.

Managing sensitivity

Desensitising toothpaste and protective coatings can help reduce discomfort caused by exposed dentine. These products block microscopic channels within dentine that transmit temperature and stimuli to the nerve.

Restorative treatment

When erosion has caused significant tooth loss, restorative treatment may be required. Composite bonding, veneers or crowns can rebuild lost structure, restore appearance and protect remaining tooth tissue. Treatment planning focuses on preserving as much natural tooth as possible.

Addressing bite and grinding issues

Patients who grind their teeth may require protective appliances to prevent further wear. Bite assessment helps identify uneven forces that accelerate erosion-related damage.

Managing underlying medical causes

If reflux or vomiting contributes to erosion, collaboration with medical professionals is important. Treating the underlying condition reduces continued acid exposure and protects oral health.

Prevention and self-care

• Reducing acidic intake frequency – limiting how often acids contact teeth lowers damage risk.
• Rinsing with water after acid exposure – neutralises acids and protects enamel.
• Waiting before brushing – allowing enamel to reharden reduces abrasion.
• Using fluoride toothpaste – strengthens enamel and improves resistance.
• Staying hydrated – supports saliva production and acid buffering.
• Using a soft toothbrush – reduces mechanical enamel wear.
• Regular dental check-ups – early detection prevents severe damage.

When to seek urgent dental care

Prompt assessment is recommended if you experience:

• Sudden increase in sensitivity
• Rapid enamel wear or visible shape changes
• Pain when biting
• Cracks or fractures in eroded teeth
• Persistent reflux symptoms affecting oral comfort
• Discomfort that interferes with eating

Early intervention reduces the need for complex restorative treatment.

FAQs and common questions

Is tooth erosion the same as tooth decay?

No. Tooth erosion is caused by direct acid exposure, while decay is caused by bacteria producing acid from sugar. Both damage enamel but require different prevention strategies.

Can enamel grow back after erosion?

No. Enamel loss is permanent. However, early erosion can be stabilised and strengthened with fluoride and protective care to prevent further damage.

Why are my teeth becoming more yellow?

As enamel thins, the yellow dentine underneath becomes more visible. This colour change is a common sign of erosion.

Does drinking fruit juice cause erosion?

Yes. Fruit juices are acidic and can soften enamel. Frequent consumption or sipping slowly throughout the day increases erosion risk.

Should I stop brushing after drinking acidic drinks?

You should delay brushing for around 30 to 60 minutes after acid exposure. Rinse with water first to neutralise acid and allow enamel to reharden.

Can reflux damage teeth without heartburn?

Yes. Some people experience silent reflux with minimal symptoms. Tooth erosion on inner tooth surfaces may be the first visible sign.

Is sparkling water harmful to teeth?

Sparkling water is mildly acidic. While less damaging than sugary fizzy drinks, frequent consumption can still contribute to erosion over time.

Can erosion affect children?

Yes. Children who consume acidic drinks or experience reflux can develop erosion. Early monitoring is important.

Does whitening worsen erosion?

Whitening does not cause erosion, but teeth affected by erosion may be more sensitive during whitening treatment. Assessment is recommended before cosmetic procedures.

Are electric toothbrushes safe for eroded teeth?

Yes, when used with gentle pressure and soft brush heads. Excessive force should be avoided.

How often should erosion be monitored?

Patients with erosion benefit from regular monitoring during routine dental check-ups to track progression and adjust prevention strategies.

Will restorative treatment stop erosion?

Restorations protect damaged areas but prevention is still required to avoid erosion affecting surrounding teeth.

Call to action

If you are experiencing sensitivity, enamel wear or changes in tooth shape, early assessment can prevent further damage. Our team can identify the cause of erosion and create a personalised treatment plan to protect and restore your teeth. Contact us to arrange a consultation and receive expert care for tooth erosion.