Our primary goal is to save your natural teeth whenever possible. Root canal, or endodontic, treatment may be necessary when the pulp tissue inside the root canals of a tooth becomes infected or damaged, which can be caused by dental trauma or decay. The pulp, which is located inside the root canals, contains blood vessels, nerves, and connective tissue. A tooth generally has between one and four root canals. A root canal procedure may be performed on a single root canal or multiple root canals within a tooth.