Treatment
Root canal treatment can be performed in 1 or 2 visits and involves these steps:
- Preparing the tooth—The dentist uses local anesthesia to numb the tooth and surrounding gums. A small protective sheet called a “dental dam” is then used to isolate the tooth and keep it free from saliva during the procedure.
- Cleaning out the tooth—An access hole is drilled into the top of the tooth. Tiny instruments are used to clean out the pulp from the pulp chamber and root canals before shaping the space for filling.
- Filling the tooth—A biocompatible material, usually a rubber-like material called gutta-percha, is used to fill the empty root canals. An adhesive cement is added to help seal the canals shut, and a temporary filling is commonly used to close the opening.
- Capping the tooth—The temporary filling is removed and a crown or filling is placed on the tooth. Teeth toward the back of the mouth used for chewing (molars and premolars) are capped more often than teeth toward the front of the mouth.
Recovery
Since most people are given anesthesia, the area of the root canal may be numb for 2–4 hours after the procedure. Some swelling, sensitivity and inflammation may also occur for the first few days.2
However, a root canal isn’t more painful than a regular dental procedure. Most people can go back to work or school after the surgery, and over-the-counter or prescription medications can help relieve any discomfort.