Why would an endodontist do my root canal and not a regular dentist?

Complexity: General dentist evaluate the tooth and see if he/she can do the root canal. If the root canal looks too complex they may send the patient to a endodontist. The endodontist spercializes in root canals and is especially good at complex procedures. Last the dentist for whatever reason may not feel comfortable with doing the root canal.

Expertise: Endodontist have advanced training and specialized equipment and skills that are necessary for many rcts that regualar dentists are not trained for.

Discretion: It is up to your general dentist to decide whether or not he or she is comfortable doing a particular procedure. Most dentists have certain procedures they like and are good at doing, while they avoid other procedures. A root canal treatment is one of those procedures that many general dentists are uncomfortable doing.