Dental question about taxonomy:condition:cavities
A cavity is a damaged area where acids from plaque dissolve tooth minerals and create a defect that may need fluoride care, a filling, or deeper treatment.
The short answer
A cavity, also called dental caries, begins when plaque bacteria use sugars to produce acids that remove minerals from enamel and dentine.
Can early mineral loss occur without any cavity symptoms?
Early mineral loss may have no symptoms. As the defect advances, cold or sweet sensitivity, food trapping, a rough surface, brown or dark change, or toothache can appear.
What daily habits can help prevent cavities?
Brush twice daily with fluoride toothpaste, clean between teeth, reduce frequent sugary drinks and snacks, and keep dental visits for examination. A dentist may use visual inspection, bitewing radiographs, or a small instrument to assess extent, then choose remineralisation advice, a filling, or pulp treatment.
Which changes mean a cavity should be examined?
Arrange care when sensitivity persists, a hole is visible, food repeatedly packs into one area, or pain develops. Swelling, fever, or severe spontaneous pain needs urgent assessment because the pulp or surrounding tissues may be involved.
What should you ask about the depth and treatment of a cavity?
Ask how deep the lesion is, whether it is active, what material suits the tooth, and how the filling or other treatment will protect the remaining enamel and dentine.
Frequently asked questions
Can a cavity heal?
Early mineral loss may be stabilised with fluoride and plaque control, but a formed hole generally needs restorative treatment.
Why does a cavity hurt?
Pain can occur when decay reaches dentine or irritates the pulp, the living tissue inside the tooth.
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.