ArticleCureus2025
Effect of Spatial Orientation of Fibers on Fracture Resistance of Large Mesio-Occluso-Distal Cavities in Maxillary Premolars: An In Vitro Study.
Article in Cureus, 2025. 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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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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Authors and funding
5 authors.
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Abstract
aimThe aim of this study is to determine the outcome of fiber insertion on the fracture resistance of composite restoration in wide mesio-occluso-distal (MOD) cavities in maxillary premolars. MATERIALS AND
methodsAfter selection of 60 extracted maxillary premolars, large class two MOD cavities were prepared, and samples were divided into five groups (n=12) for insertion of polyethylene fibers. In group A, fibers were placed horizontally in the mesiodistal direction, while in group B, they were placed buccolingually. In Group C, they were placed in a U-shaped design, in Group D, it was placed in a circular orientation, and in Group E, there were no fibers. After the completion of the composite restoration and incubation process, the samples were tested under a universal testing machine at a crosshead speed of 1mm/min to measure the fracture resistance of all the samples, and the values were obtained in Newton (N).
resultsThe fracture resistance was highest in Group A (910.58 N), followed by Group C (898 N), Group B (894.33 N), and Group D (753.08 N). Group E (without fiber) showed the least fracture resistance value (549.25 N).
conclusionFiber reinforcement significantly improves the fracture resistance in maxillary premolars, with Group A having superior results as compared to others in the present study.
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