The most common reason why a root canal treatment is required is for the treatment of an abscessed tooth. An abscessed tooth is an infected tooth where the infection has reached the dental pulp. At this point, the only way to resolve the situation is to completely remove the dental pulp to deprive the bacteria of nutrients. The resultant empty space is filled with a protective material. 

Much like a dental abscess, a large cavity may penetrate a tooth to the point that it is threatening the exposure of the nerve. At this point, a root canal treatment is necessary.

When a tooth breaks, it can break to the point that much tooth structure is lost, exposing the nerve to the outer environment. Front teeth may also require a preventative root canal if they become broken to prepare them for the reception of a dental crown.

• Improved chewing
• Normal sensation and bite force
• Natural appearance
• Protecting other teeth from excessive strain or wear

If you undergo a root canal treatment, you will be provided with anesthesia. So the procedure is no more painful than other routine dental procedures like having a wisdom teeth extracted or getting a dental filling. However, you may be somewhat uncomfortable for a few days after a root canal procedure.

Expect the treated area to remain numb for up to four hours after your root canal treatment. Patients are typically able to resume work or normal activities after a root canal. However, it is recommended that you do not eat anything until the effects of the anesthesia have worn off.