Root canal is the natural cavity within the center of the tooth. The pulp or pulp chamber is the soft area within the root canal. The tooth's nerve lies in the middle of the root canal. Root canal treatment is a frequently performed dental procedure to treat a tooth with infected or dead pulp tissue or when the tooth is badly decayed. During a root canal procedure, the nerve and the infected pulp tissues are removed then the inside of the tooth which is called pulp chamber is cleaned and shaped and then finally sealed with filling.