The nerve within your tooth can sometimes become infected, due to trauma or decay. A root canal treatment can prevent you from losing your tooth and alleviate the pain caused by the swelling/abscess. When left untreated, the infection can cause severe health complications as the bacteria can enter the bloodstream and spread throughout the body.
During the root canal procedure, the infected tissue is removed and the space where the nerve once sat is filled with a special filling material. Because the tooth is no longer “living”, it becomes weak over time and therefore is best restored with a crown to prevent future fracture.