Figure 1 shows the anatomy of a tooth with enamel (the white external part of a tooth) and dentin (the yellow part of the tooth under the enamel) and blood vessels and nerves (pulp) inside the tooth. For a variety of reasons the pulp can become inflamed or necrotic (dead) and have to be removed. The process of removal of the pulp and filling the pulp chamber is called a “root canal”.
