Three-dimensional finite element stress analysis of endodontically treated premolars restored with various materials

The improving endodontic treatment methods make the protection of partly or fully damaged crown possible by restoring them. During the restoration of such kind of teeth, posts are placed into the channels in order to achieve retention. The application of a new crown to the tooth for restoring crown damages is done by the use of cores, which consist of different materials. In this study, the stresses produced at the dentine and various restoration regions due to the chewing load in the mandibular second premolar, where various post-core applications are carried out, by the three-dimensional finite element method (3D-FEM). In this study and control groups, it is proved that the most successful applications are achieved in cast post-cores. However with careful studies and selection of suitable post, prefabricated posts and cores can be used on the largely ruined and endodontically treated teeth