Root canal treatment, also known as endodontic therapy, is a dental procedure designed to save and restore a severely damaged or infected tooth. This treatment becomes necessary when the pulp, which contains the tooth's nerves, blood vessels, and connective tissues, becomes infected or inflamed due to deep decay, repeated dental procedures on the same tooth, cracks, chips, or trauma.

During a root canal procedure, the dentist carefully removes the infected or inflamed pulp, cleans and disinfects the interior of the tooth's root canals, and then seals them to prevent further infection. This process not only eliminates the source of pain and discomfort but also preserves the tooth's structural integrity. Following the root canal, a dental crown is often placed on the treated tooth to provide protection, restore function, and ensure a natural appearance.