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Abstract Fiber post and resin core systems were applied in the restoration of residual roots.At present， the restorative materials are gradually transferred from traditional rigid materials to composite materials whose biomechanical properties are close to dentin， such as fiber post.To restore endodontically treated teeth with fiber posts and composite resin，long term effect index is fracture resistance.This paper is focused on the influencing factors of fracture resistance of fiber posts.
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