A root canal is a procedure that is used to treat a tooth that is so badly damaged that there is no other dental procedure that can be used to restore it.
Root canals are one of the most common dental problems that dental professionals have to deal with today. Cavities are the most common cause of root canals, and they can occur for several reasons.
The most common is a sugar-laden diet. When you eat sugar too often without taking care of your teeth the bacteria in the mouth feat on the layers of teeth one by one until they get to the pulp, which is the inner-most part of the tooth.
Once this is damaged a root canal has to be performed in order to save the tooth. The other causes of root canals include cracks on the tooth, trauma to the tooth or repeated dental procedures that wear away the enamel leaving the inner part of the tooth exposed.