Root Canal Treatment (RCT) is performed on a decayed tooth’s pulp area for protecting the tooth from further decay. It is recommended that you get a dental crown or cap after root canal treatment. A “root canal” is a term used to describe the natural cavity in the center of a tooth. It contains a soft area known as the pulp chamber that houses the nerves together. Root canal therapy is necessary if this area becomes irritated or infected due to cavities, trauma, or decay. If not treated on time, the infection can cause an abscess, leading to swelling of the face, neck, and bone loss around the roots of teeth.