Endodontics is the treatment of the nerves of the teeth. When the nerve inside the tooth is infected, it needs to be removed. If left untreated an infection can turn into an abscess, which is a much more serious problem that includes bone loss in the jaw.
Advances in dental technology and anesthetics have made root canal therapy much less intimidating for patients. A root canal procedure is typically as comfortable as getting a filling done. After the infection has been removed and the root canal space filled, a post may be placed into the root canal space to help keep the crown from fracturing (like rebar in concrete). It is highly recommended that a tooth that has undergone a root canal be fitted with a crown. This will improve the strength and appearance of the tooth.
Root canals have approximately a 95% success rate. In some cases, however, a tooth that has received endodontic treatment fails to heal. Occasionally, the tooth becomes painful or diseased months or even years after successful treatment. In the rare instance when root canal therapy has not been successful, options are: retreatment (do the root canal over), apioectomy, or extraction and subsequent implant or bridge placement.
Root canal files cleaning out diseased nerve tissue
Post build-up of tooth before crown preparation