ANALYSIS OF DIFFERENT ESTHETIC ENDOPOSTS SYSTEMS IN UPPER CANINES WITH FINITE ELEMENT METHOD SUMMARY

The restauration of endodontically treated teeth is very important for the professional, especially at the moment of select the materials to use. In the longevity and the success of the treatment, the fracture of posts and roots, the recurrent caries or descementation of posts have a significative influence.
The aim of this investigation was to study the way that the materials of prefabricated posts affect the biomechanical behavior of restored teeth, and also the effect of different materials (glass fiber, quartz fiber, titanium) with significant, and different Young’s moduluses, on superior canines, the most representative teeth of this sector of the buccal cavity.
The finite element method (FEM) was used , with the objective of making models of restored teeth and observing the distribution of tensions over those teeth under external loads.
The results showed that restored teeth with glass fiber posts and metallic crowns had more resistance to fracture, more favorable fracture levels and less microleakage than the others. The teeth restored with titanium posts showed the worst distribution of tensions.
We concluded that,the upper canines with endodontic treatment and restored with different systems of posts and definitive metallic crowns, where the elastic modulus of the posts is similar to that of the dentine and cores, performed better biomechanically.