ArticleMaterials (Basel, Switzerland)2026
Post-and-Core Buildup Techniques with Short Fiber-Reinforced Composite and Polyethylene Fiber: In Vitro Evaluation of the Fracture Load and Mode of Failure.
Article in Materials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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6 authors.
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Abstract
The aim was to evaluate, in vitro, the fracture load of single-rooted teeth restored using post-and-core techniques combining short fiber-reinforced composite (SFRC) and polyethylene fiber (PEF) compared with the conventional technique of post-and-core buildup using fiberglass posts (FGPs). Thirty-six single-rooted anterior teeth (12 mm root length) were assigned to three groups (n = 12): Group 1 (FGP + conventional composite resin), Group 2 (SFRC), and Group 3 (PEF + SFRC). All specimens received composite resin crowns, were subjected to 1,000,000 mechanical cycles (100 N, 45°), and were then tested for fracture resistance. Failure mode was assessed visually. After mechanical cycling, no fractures, chipping, cracks, or restoration displacement were observed in any specimen. According to the Kruskal-Wallis test and Dunn's post hoc test with Bonferroni correction, Group 2 (946 N) showed the highest fracture load, with no significant difference from Group 3 (820 N) (
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