Three-dimensional finite element method is a method applied in many fields of theoretical mechanics analysis. It is introduced since the inception of dentition defect, through computer simulations, it can be more precisely calculate the prosthesis to the force within each region condition with a small error and be set of parameters, etc., showing a stress test analysis of other advantages are unparalleled, so more and more applications to the restoration of the force response simulation and forecasts. The three-dimensional finite element method have been applied in a variety of fixed dentition defect restoration, restoration activities, fixed-activities joint retainers, implant stress analysis and other aspects of the situation in recent years will be reviewed in this article.
