K04: Diseases of pulp and periapical tissues

K04.1: Necrosis of pulp

Every tooth has a hollow interior. Connective tissue such as nerves and blood vessels is found inside a tooth. Through its interior, a tooth is formed and sustained.

The inside of the tooth may for instance die due to pathogens or injuries.

If the inside of the tooth is dead, it may then become inflamed. You may then have a toothache or bad breath.