ArticleCureus2026
A Three-Dimensional Finite Element Analysis of Stress Distribution in Cement-Retained and Screw-Retained Implant-Supported Restorations in Mandible Using Porcelain-Fused-to-Metal and Zirconia Crowns.
Article in Cureus, 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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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
7 authors.
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Abstract
Introduction Dental implants are widely used to replace missing teeth; however, the biomechanical performance of implant-supported restorations may be influenced by the prosthesis retention type, restorative material, and direction of occlusal loading. Unfavorable stress distribution may lead to biological and mechanical complications, affecting long-term implant success. The present study aimed to evaluate and compare the stress distribution patterns in cement-retained and screw-retained implant-supported restorations fabricated with porcelain-fused-to-metal and zirconia crowns under axial and oblique loading conditions in the mandible using three-dimensional finite element analysis (FEA). Materials and methods A three-dimensional finite element model of the mandibular premolar region restored with a titanium dental implant was developed. Four restorative models were analyzed: cement-retained porcelain-fused-to-metal, screw-retained porcelain-fused-to-metal, cement-retained zirconia, and screw-retained zirconia crowns. All materials were considered to be homogeneous, isotropic, and linearly elastic. A vertical axial load of 100 N along the implant axis and an oblique load of 100 N applied at 30
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