Tooth decay or a leaking filling can cause your tooth tissue to become inflamed. A hard blow to a tooth can also be a reason. Bacteria are usually the cause of the inflammation.
Do your teeth feel sensitive when drinking hot or cold drinks? This may be a first sign. Sometimes the inflammation causes no symptoms, but severe pain can also occur. Your dentist must remove the inflamed tissue, otherwise it will die.
If the tissue is not removed, the infection can spread to your jawbone.
This causes bone loss around the teeth, which can eventually lead to loss of teeth.