Inside your teeth is a soft material called pulp that contains blood vessels, nerves, and connective tissue. If this pulp be- comes infected, it can cause severe tooth pain. In some cases, that infection will require root canal therapy. Nerves enter at the tip of the tooth’s roots and run through the center of the tooth in small, thin root canals, which join up in the pulp chamber. Each tooth has at least one root canal but may contain more.
This is a procedure intended to remove damaged or dead pulp. After the pulp chamber and root canal are cleaned out and reshaped, the canal is filled with a rubber-like substance called gutta percha to prevent recontamination, and the tooth is permanently sealed.