Publication:
Are dentin posts biomechanically intensive?: A laboratory and FEA study

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Date
2014-12-17
Authors
Belli, Sema
Celik, Kezban
Akbulut, Makbule Bilge
Guneser, MEHMET BURAK
Eraslan, Oguz
Eskitaccioglu, Gurcan
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Abstract
The goal of this laboratory and finite elemental stress analysis (FEA) study was to compare fracture strength of dentin post (DP) with stainless steel and glass fiber posts. Single-rooted teeth were decoronated and restored with ParaPost (PP), i-TFC (TFC), and DPs (n=10). Resin cores were created and loaded until failure (1.0mm/min). The data were analyzed (ANOVA, Tukey, Chi-Square tests). Three-dimensional FEA models of the posts were created and the stress distributions were calculated using Solid Works/Cosmos works structural analysis program. A significant difference was found among the groups (p<0.001). TFC group showed the highest and the DP group showed the lowest fracture resistance (p<0.001). PP created more stress at the root dentin and inside the post. Restoration of roots with glass fiber and DPs may reduce stresses within the core material and the remaining root. However, a fracture-resistant restoration cannot be achieved by using a DP.
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Belli S., Celik K., Akbulut M. B. , Guneser M. B. , Eraslan O., Eskitaccioglu G., -Are dentin posts biomechanically intensive?: A laboratory and FEA study-, JOURNAL OF ADHESION SCIENCE AND TECHNOLOGY, cilt.28, ss.2365-2377, 2014
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