Can Fiber Posts Increase Root Stresses and Reduce Fracture?

• DOI: 10.1177/0022034510363382
• Publication Date: 2010-03-27T02:43:37Z
• Authors: A.F.V. Santos; J.B.C. Meira; C.B. Tanaka; T.A. Xavier; R.Y. Ballester; R.G. Lima; C.S. Pfeifer; A. Versluis
• Keywords: Post and core; Premolar

The clinical success of fiber posts has been attributed to their lower elastic modulus. tested hypothesis was that could lead risk post debonding and root fracture, despite an increase in stresses. Stress analyses were carried out with a 3D finite element model premolar restored metallic or post. Bonded non-bonded post/cement interface conditions simulated. We calculated risk-of-fracture indices by determining the highest principal stress values divided tensile strength. Shear stresses along analyzed for bonded models. Compared post, generated higher root. However, fracture less likely occur root, since its core higher.