The nerve is that soft tissue located in the core of the tooth, which transmits the sense of external stimuli surrounding the tooth to the sensory centers in the brain, translating them into pain.
The nerve function of the tooth:
The nerve, in conjunction with the tiny blood vessels within the pulp of the tooth, is responsible for the growth of the tooth and for its continued nutrition, which maintains its hardness. If the nerve chamber of a tooth becomes infected as a result of decay or is damaged as a result of an injury, root canal (nerve) treatment is often the only way to save your tooth.
Within the hard outer shell of each tooth there is a special area called the pulp or nerve chamber. The nerve chamber contains a system of blood vessels, lymph vessels, and nerves, or pulps, that enter through the bone through the root canals. This system is providing food for the cells inside the tooth.
If there is a deep tooth decay or any other injury, this can cause damage to the tooth pulp or infection. When performing root canal (canal) or endodontic treatment, the dentist removes the damaged or infected pulp and replaces it with a special filling that helps preserve the remaining tooth structure.