Dr. Tuan Nguyen DDS, MSD is an excellent root canal specialist. He's done several root canals on me and I would not consider any other dentist to do that. I did go to another dentist in Fresno and ended up in ER then admitted to the hospital with a raging blood infection from the root canal that he did. Then I lost the tooth!!! So, Dr Nguyen is my "go to" doctor if I need a root canal. HE KNOWS HIS BUSINESS plus, his shots don't hurt!!