Most people will need a root canal at some point in their lives. Dental advances have broken the bad rap of root canals from the past.
A root canal is normally needed due to an untreated cavity. The bacteria that causes the cavity spreads and endangers the tooth. If the bacteria is simply left alone, the tooth may eventually be lost, as infections that are inside the tooth cannot be treated with antibiotics due to a lack of blood supply in that area. The root canal procedure removes nerve tissue and blood supply to the tooth, thus saving what remains.
Based upon the complexity of the procedure, a root canal may be completed in one visit or two.
After the process is complete, your tooth may be sore for a few days, but this is normal and your tooth should return to its normal healthy, happy state within a week.