ArticleJournal of conservative dentistry and endodontics2026
Stress distribution in Class I composite restorations with polyethylene fiber wallpapering under different occlusal loads: A three-dimensional finite element analysis.
Article in Journal of conservative dentistry and endodontics, 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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Abstract
Context: Class I composite restorations in posterior teeth often fail due to polymerization shrinkage and uneven load distribution. Aims: This study aimed to observe the stress distribution in polyethylene fiber-reinforced composite resin restorations placed using the wallpapering technique. Settings and Design: Finite element analysis. Materials and Methods: A 3D dental model of a maxillary premolar was developed using CBCT and then imported for reconstruction and geometry refinement. Four groups were then created: intact tooth, Class I cavity, conventional composite restoration, and wallpapering fiber-reinforced composite restoration. Simulations were performed using ANSYS 2025 R1 with vertical loads of 300N and 738N on the central fossa. Statistical Analysis Used: Von Mises stress distribution was analyzed across three layers using two-way ANOVA (α =0.05). Results: Load magnitude ( Conclusions: Wallpapering polyethylene fiber placement biomimetically redistributes stress with load-dependent effectiveness, offering the greatest potential benefit in high-load conditions rather than standard Class I restorations.
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