Why is a root canal done?
A root canal is done when tooth decay penetrates to the center of the tooth and has infected the tooth pulp (Psst… if the dentist diagnoses a cavity don’t procrastinate getting the filling. You need to prevent the decay from spreading so you don’t need a root canal). Left untreated, the infection can spread to the jawbone, adjacent teeth, and even the bloodstream.
A root canal may also be needed if a tooth is severely broken.