Root canals are needed to repair the nerves of a tooth that have been damaged by decay or an infection. Repairing the tooth is a special procedure, Our dentist will remove the tissue inside the tooth, nerves, bacteria, and any decay around the tooth. She will then fill that empty space with medicated, dental materials. These materials help the tooth to repair itself and keep the infection from growing. Without a root canal, an infected tooth will die and eventually need to be removed. Getting a root canal is much more cost effective than getting an extraction