Root canal treatment is an intervention performed when the pulp of a tooth becomes irreversibly inflamed. It involves the removal of the pulp, which contains the blood vessels and nerve bundle of the tooth. If inflammation only affects the pulp inside the canal, the tooth may remain alive. However, if there is an inflammatory condition affecting the apex of the tooth, the tooth likely has lost its vitality. Canal treatment can be painful in acute situations, but generally, it is performed without causing much discomfort. The pulp is removed using instruments called files. Subsequently, the canal or canals containing the pulp are widened with files until they reach a sufficient width. During this process, the canals are irrigated with substances such as sodium hypochlorite, saline solution, EDTA, and chlorhexidine. Finally, the canals are filled with gutta-percha, silver cones, or a similar tissue-friendly material.