A root canal falls under the branch of dentistry known as endodontics. During a root canal, the nerves or roots of a tooth are removed. Typically this needs to be done when a tooth has pain because of the root being infected.
Rotary Endodontics has a different approach to performing a root canal. A special electric handpiece is used that allows the procedure to be done much faster than without it and also makes things easier for the dentist.