16 research outputs found
Stress distribution of oval and circular fiber posts in amandibular premolar: a three-dimensional finite element analysis
Degree of conversion of dual-cured resin cement light-cured through three fibre posts within human root canals: an ex vivo
Finite element analysis of the influence of the offset placement of an implant-supported prosthesis on bone stress distribution
Clinical Effectiveness of 6.5-mm-Long Implants to Support Two-Implant Fixed Prostheses in Premolar-Molar Region: The Influence of Immediate Loading and the Length of Splinting Implant
Bioavailability of Trace Elements as Related to Root-Induced Chemical Changes in the Rhizosphere
Virtual analysis of stresses in human teeth restored with esthetic posts
The use of intra-radicular posts for rebuilding of damaged teeth is a normal practice in contemporary dentistry. However, dental roots restored with posts are subjected to the risk of failure under occlusal loads, particularly in cases of small dentin thickness. This study adopted the finite element analysis to compare the elastic stress distribution in simulated endodontically treated maxillary central incisor restored with two different esthetic posts, a ceramic post and a prefabricated fiber glass post. Under masticatory load, the shear stress and von Mises equivalent stress were determined for the different regions of the two models. The results demonstrated that stress concentrations occurred mainly in the cervical dentin in the prefabricated fiber glass post model. The ceramic post model presented stress concentration in a region limited to the proper post adjacent to its apical end, thus preserving the root dentin