Root canal therapy is required when the nerve of a tooth is compromised as a result of bacterial infection or decay. In order to save the tooth, the nerve inside the tooth must be removed. The remaining space where the nerve used to remain is then filled in with dental medical materials to preserve the function of the tooth.

The process of root canal therapy typically takes between one to two visits. If necessary, a temporary filling can be inserted after the tooth has been excavated and thoroughly cleaned. The second appointment, usually a week later, will involve filling the inside cavity of the tooth with dental medication and materials.

Root canal therapy is almost always followed up with a Crown preparation in order to bring the tooth to full function, avoid future fractures, and to insure its longevity.