Cavity left untreated
An untreated cavity can progress from enamel into dentine and the pulp, causing pain, infection, tooth damage, or tooth loss.
The short answer
A cavity is a demineralised area caused by acids from bacterial plaque that can form a hole in enamel or dentine.
What can happen when a cavity is left untreated?
Book an examination even without pain; treatment may be fluoride care, a filling, root canal treatment, or extraction depending on depth.
What should you do if an untreated cavity causes symptoms?
Seek prompt care for spontaneous pain, lingering sensitivity, pain on biting, swelling, pus, fever, or a bad taste.
Which signs mean an untreated cavity needs prompt care?
Ask how deep the lesion is, whether the pulp is involved, and which treatment preserves the tooth.
Frequently asked questions
Can home care solve this problem?
Home care can support oral hygiene and comfort, but persistent or worsening symptoms need cause-based dental assessment.
What happens at an appointment?
The dentist reviews the history, examines the mouth, and recommends targeted treatment or monitoring based on the finding.
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Who wrote this page
This library is published by Dental Nation, a licensed dental group practising in the United Arab Emirates. Pages are written and overseen by the same clinical team that treats patients in our clinics, and are held to a fixed editorial standard for safety and accuracy.
This page is patient education, not medical advice, and cannot replace an examination. Anything urgent — facial swelling, trauma, uncontrolled bleeding or severe pain — needs a dentist or emergency care now.