The three-dimensional finite element method is one of the most important methods in the study of oral biomechanics. It is important to adopt three-dimensional finite element method to simulate and analyse stress distribution of the tooth and filling material in endodontics. Many scholars research different of influencing factors of stress analysis in root canal preparation and root canal filling. This review was represented on the application and research progress of three-dimensional finite element method in root canal therapy in recent years.
