EasyCare dental guides · Reflux and teeth
Acid reflux and teeth: what happens to enamel?
Frequent reflux can expose teeth to stomach acid. Learn what erosion can look like, what to do after an episode and when to seek dental and medical advice.
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The short answer: If stomach acid regularly reaches your mouth, it can gradually dissolve enamel and contribute to sensitivity or changes in tooth shape. These signs are not proof that reflux is the cause. A dentist can assess your teeth, and a GP can help investigate frequent reflux.
Understand the connection
How can reflux affect teeth?
Reflux brings stomach contents upwards. When acid repeatedly contacts teeth, it may soften and remove their outer mineral surface. Over time, enamel can become thinner and dentine may be exposed. Some people notice sensitivity first; others learn about possible erosion at a dental check. Vomiting can also expose teeth to stomach acid.
Signs you might notice
Cold or acidic foods may feel uncomfortable. Edges can look thinner, more translucent or change shape. These changes can have other causes, so symptoms alone cannot diagnose reflux erosion.
Signs a dentist may assess
Smooth or shiny surfaces, scooped areas on back teeth, thinner edges, exposed yellow dentine or restorations standing above surrounding worn tooth structure can be clues. The pattern and your history matter together.
Reflux-related erosion is one form of tooth surface loss. Our guide to non-carious tooth wear explains other patterns, including abrasion and grinding, without assuming one cause for every worn tooth.
An important distinction
Is erosion the same as a cavity?
No. Erosion is chemical tooth wear from acid contacting the tooth surface. Tooth decay develops when bacteria in plaque use sugars and create acids that damage tooth structure. Both problems can be present in one mouth, and sensitivity can also come from cracks or gum recession. A dental examination helps distinguish them. If your main question is about a hole or a cavity, see our tooth decay information.
After an acid episode
Should I brush straight after reflux or vomiting?
Rinse with water first. Wait at least 30 minutes before brushing, because recently acid-exposed enamel may be softer. Then use a soft toothbrush and fluoride toothpaste with gentle pressure. A dentist can advise whether a fluoride rinse or other measures suit your mouth. These steps may reduce further wear; they cannot replace enamel that has already been lost.
Frequent reflux needs two conversations
Tell your dentist about acid exposure so tooth wear can be monitored. Tell your GP about recurrent heartburn, regurgitation or vomiting to discuss the possible cause and medical care. Dental treatment alone cannot control stomach acid.
Protect what remains
How is reflux-related tooth wear managed?
The plan depends on how much tooth structure has changed and whether the wear is progressing. A general dental assessment may document the pattern with photographs or scans, discuss fluoride and sensitivity support, and review how often acidic foods or drinks also reach your teeth. Addressing reflux with a GP is part of reducing ongoing exposure.
Stable, mild wear may be monitored. More advanced damage may need bonding or fillings for selected areas, or a crown for a weakened tooth if appropriate. Treatment choice follows the examination; a visible worn edge does not automatically require a restoration.
If you also have jaw tension or signs of clenching, read our separate teeth-grinding guide. Acid exposure and grinding may contribute together, but a night guard does not treat reflux.
Common questions
Questions about acid reflux and teeth
Can acid reflux damage teeth?
Repeated exposure to stomach acid can contribute to enamel erosion and sensitivity. A dentist can assess whether the pattern is consistent with acid wear.
Is dental erosion the same as tooth decay?
No. Erosion is surface loss from direct acid exposure; decay involves plaque bacteria. Both can occur, so the cause needs checking.
What signs of reflux damage can a dentist see?
Smooth enamel, scooped areas, thinning edges or exposed dentine may be relevant. None of these signs alone proves reflux.
Should I brush immediately after reflux or vomiting?
Rinse with water, then wait at least 30 minutes before brushing gently with a soft brush and fluoride toothpaste.
Can a dentist treat acid erosion?
A dentist can assess and monitor wear, advise on prevention and restore some damaged areas when appropriate. A GP should assess frequent reflux.
Can reflux and grinding both affect teeth?
Yes. Acid and mechanical wear can occur together. A dentist can look for both patterns rather than assuming one explains every symptom.
Further reading: healthdirect on dental erosion and a systematic review of reflux and dental erosion. This guide cannot diagnose the cause of an individual tooth change.
