Root Canal Therapy, also called Endodontic Therapy, is a very common procedure that is no more invasive than having a filling placed. In addition, the procedure is completely painless. A root canal is the natural cavity in the center of the tooth. It contains a soft area called the pump or pulp chamber.The tooth’s nerves are inside the root canal, which help growth and provide the cold and hot sensations. An infection will not affect the daily functioning of the tooth, but not treating it can lead to health problems. These issues can be significant in seniors and younger children.