Contrary to the belief that a root canal procedure is painful, it is a way to relieve you of a severe toothache. During the root canal treatment in Calgary NW, the unhealthy pulp is removed with flexible files, and the canals are cleaned to prepare them for filling. Once the tooth is free from internal decayed or infected content and pulp, the empty cavity is filled with a bio-compatible material to seal the interior of the tooth against any further bacterial infection. After the inside of the tooth has been treated, it may be recommended to get a crown on the tooth to protect its remaining structure.