Biomechanical behavior of weakened roots restored with custom-made post-and-cores of glass fiber and polyetheretherketone.
Journal of prosthodontics : official journal of the American College of Prosthodontists(2022)
Abstract
Post type and mechanical aging influence the compression force resistance and fracture pattern of weakened roots. Milled glass fiber and polyetheretherketone post-and-cores exhibited higher compression force resistance and more reparable fractures compared to prefabricated glass fiber posts. Prefabricated glass fiber posts and milled polyetheretherketone post-and-cores showed similar stress distribution.
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Key words
CAD-CAM,Post and core technique,finite element analysis,fracture strength
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