alexa Fracture resistance and primary failure mode of endodontically treated teeth restored with a carbon fiber-reinforced resin post system in vitro.



Author(s): Raygot CG, Chai J, Jameson DL

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Abstract PURPOSE: This study was undertaken to characterize the fracture resistance and mode of fracture of endodontically treated incisors restored with cast post-and-core, prefabricated stainless steel post, or carbon fiber-reinforced composite post systems. MATERIALS AND METHODS: Ten endodontically treated teeth restored with each technique were subjected to a compressive load delivered at a 130-degree angle to the long axis until the first sign of failure was noted. The fracture load and the mode of fracture were recorded. RESULTS: The failure loads registered in the three groups were not significantly different. Between 70\%, and 80\% of teeth from any of the three groups displayed fractures that were located above the simulated bone level. CONCLUSION: The use of carbon fiber-reinforced composite posts did not change the fracture resistance or the failure mode of endodontically treated central incisors compared to the use of metallic posts.
This article was published in Int J Prosthodont and referenced in Dentistry

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