A laser may be used to gain access to the infected nerve and clean, shape, enlarge and disinfect the root canal (Endodontics). Advantages of using a laser to perform a root canal are that the procedure oftentimes may be performed without anesthesia and its use conserves as much natural tooth structure and strength as possible. The endodontist’s goal in root canal therapy is to disinfect the root canal and fill the area with an inert material while maintaining as much strength of the tooth as possible. The precision and disinfecting qualities of the laser help dentists achieve these goals.