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Stress distribution of complete-arch implant-supported prostheses reinforced with silica-nylon mesh

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Stress distribution of complete-arch implant-supported prostheses reinforced with silica-nylon mesh

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dc.contributor.author Paes-Junior, Tarcisio-José de A. es
dc.contributor.author Tribst, João Paulo Mendes es
dc.contributor.author Dal Piva, Amanda-Maria-de Oliveira es
dc.contributor.author Amaral, Marina es
dc.contributor.author Borges, Alexandre- Luiz-Souto es
dc.contributor.author Gonçalves, Fernanda-de-Cássia-Papaiz es
dc.date.accessioned 2020-02-05T08:59:00Z
dc.date.available 2020-02-05T08:59:00Z
dc.date.issued 2019 es
dc.identifier.citation Paes-Junior, Tarcisio-José de A. ; Tribst, João Paulo Mendes ; Dal Piva, Amanda-Maria-de Oliveira ; Amaral, Marina ; Borges, Alexandre- Luiz-Souto ; Gonçalves, Fernanda-de-Cássia-Papaiz. Stress distribution of complete-arch implant-supported prostheses reinforced with silica-nylon mesh. En: Journal of Clinical and Experimental Dentistry, 11 12 2019: 1163-1169 es
dc.identifier.uri https://hdl.handle.net/10550/72905
dc.description.abstract This study evaluated the presence of a silica-nylon mesh and two cantilever lengths on the biomechanical behavior of complete-arch implant-supported prostheses. Twenty-four (24) complete mandibular arch implant-supported prostheses were divided into 4 groups according to the presence of reinforcing mesh (with or without) and the cantilever length (molar ? 15 mm or premolar ? 5 mm). The specimens were submitted to strain gauge analysis (30-kgf, 10 s) at different points (molar and premolar). Three-dimensional models were created based on the in vitro specimens, and the results in the bone (microstrain), prostheses (tensile stress), implants and prosthetic screws (von-Mises stress) were evaluated using the finite element method (FEM). All materials were considered homogeneous, isotropic and linear. Strain gauge data were submitted to 3-way analysis of variance and the Tukey test (?=.05). FEM results were qualitatively analyzed using colorimetric graphs. The microstrain magnitude for the prostheses with reinforcement was 519.91±359 and 583.33±661 without reinforcement (p=.001). The microstrain values for loading on the molar was 867.49±784 and on the premolar was 235.75±145. FEM corroborated with the in vitro findings for the bone behavior. The load application in the premolar showed reduced stress concentration, and a significant difference was observed between the presence or absence of the reinforcement for the prostheses. Silica-nylon mesh reduced the peri-implant microstrain and the prosthesis stress regardless of the cantilever extension. For temporary complete-arch implant-supported prostheses, the limitation of the cantilever to the premolar region improves the biomechanical response during load application. es
dc.title Stress distribution of complete-arch implant-supported prostheses reinforced with silica-nylon mesh es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.56470 es
dc.type.hasVersion VoR es_ES

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