A tooth cavity is a small hole in the tooth caused by dental decay rotting away the tooth enamel and pulp inside the tooth.
Toothache is the initial symptom of a cavity, however cavities can appear months before the symptoms. Regular dental appointments will ensure that any decay is treated while the cavity is small.
Many people ignore the first symptoms of tooth decay and a minor cavity develops into a root canal cavity requiring more complex dental treatment. If teeth become sensitive to hot or cold or if there is a dull ache in any tooth, patients should contact a dental clinic.
The information on this site is not a substitute for diagnosis or treatment from a licensed medical practitioner. If you are experiencing a serious medical condition call your local emergency services or your doctor.