Root canal treatment of endodontic treatment is usually recommended when the root of the tooth becomes infected. This infection can spread to the nerves which carry the blood supply in the tooth. If the nerves become infected they will die and in turn so will the tooth. Once there is no blood supply to the tooth, it is at more risk of infection. The early stages of root problems tend to go unnoticed but once the problem is pronounced, it manifests itself in the form of painful abscesses and in some cases severe discomfort.