Fatigue behavior and stress distribution of molars restored with MOD inlays with and without deep margin elevation

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversity of Taubaté (UNITAU)-
Autor(es): dc.contributorUniversidade Federal de Sergipe (UFS)-
Autor(es): dc.contributorSão Francisco University (USF)-
Autor(es): dc.creatorGrassi, Elisa Donaria Aboucauch-
Autor(es): dc.creatorde Andrade, Guilherme Schmitt-
Autor(es): dc.creatorTribst, João Paulo Mendes-
Autor(es): dc.creatorMachry, Renan Vaz-
Autor(es): dc.creatorValandro, Luiz Felipe-
Autor(es): dc.creatorRamos, Nathalia de Carvalho-
Autor(es): dc.creatorBresciani, Eduardo-
Autor(es): dc.creatorSaavedra, Guilherme de Siqueira Ferreira Anzaloni-
Data de aceite: dc.date.accessioned2025-08-21T15:22:45Z-
Data de disponibilização: dc.date.available2025-08-21T15:22:45Z-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-05-01-
Data de envio: dc.date.issued2022-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s00784-021-04219-6-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/233664-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/233664-
Descrição: dc.descriptionObjectives: This study evaluated the effect of deep margin elevation (DME) and restorative materials (leucite-reinforced glass–ceramics [C] vs. indirect resin composite [R]) on the fatigue behavior and stress distribution of maxillary molars with 2-mm deep proximal margins restored with MOD inlay. Methods: Fifty-two extracted human third molars were randomly assigned into four groups (n = 13): C; DME + C; R; and DME + R. Inlays were fabricated in CAD-CAM and bonded to all teeth. The fatigue behavior was assessed with the stepwise stress test (10,000 cycles/step; step = 50 N; 20 Hz; initial load = 200 N). Fatigue failure loads and the number of cycles were analyzed with 2-way ANOVA and Tukey’s test (p < 0.05) and Kaplan–Meier survival plots. The stress distribution was assessed with finite element analysis. The models were considered isotropic, linear, and homogeneous, and presented bonded contacts. A tripod axial load (400 N) was applied to the occlusal surface. The stress distribution was analyzed with the maximum principal stress criterion. Results: For fatigue, there was no difference for DME factor (p > 0.05). For the material factor, the load and number of cycles for failure were statistically higher in the R groups (p < 0.05). The finite element analysis showed that resin composite inlays concentrated more stress in the tooth structure, while ceramic inlays concentrated more stress in the restoration. Non-reparable failures were more frequent in the resin composite inlays groups. Conclusions: DME was not negative for fatigue and biomechanical behaviors. Resin composite inlays were more resistant to the fatigue test, although the failure mode was more aggressive. Clinical significance: DME does not impair mechanical behavior. Resin composite inlays failed at higher loads but with a more aggressive failure mode.-
Descrição: dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (Unesp), 777th Eng. Francisco José Longo Av., SP-
Descrição: dc.descriptionPost-Graduate Program in Dentistry University of Taubaté (UNITAU), 09th Rua Dos Operários St., SP-
Descrição: dc.descriptionGraduate Program of Oral Science Prosthodontics Unit School of Dentistry Federal University of Santa Maria (UFSM) Roraima Av, RS-
Descrição: dc.descriptionSchool of Dentistry São Francisco University (USF), 218th São Francisco de Assis Av., SP-
Descrição: dc.descriptionDepartment of Restorative Dentistry Institute of Science and Technology São Paulo State University (Unesp), 777th Eng. Francisco José Longo Av., SP-
Descrição: dc.descriptionDepartment of Dental Materials and Prosthodontics Institute of Science and Technology São Paulo State University (Unesp), 777th Eng. Francisco José Longo Av., SP-
Descrição: dc.descriptionDepartment of Restorative Dentistry Institute of Science and Technology São Paulo State University (Unesp), 777th Eng. Francisco José Longo Av., SP-
Formato: dc.format2513-2526-
Idioma: dc.languageen-
Relação: dc.relationClinical Oral Investigations-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectComposite resins-
Palavras-chave: dc.subjectDental porcelain-
Palavras-chave: dc.subjectDental restoration failure-
Palavras-chave: dc.subjectFatigue fractures-
Palavras-chave: dc.subjectFinite element analysis-
Palavras-chave: dc.subjectInlays-
Título: dc.titleFatigue behavior and stress distribution of molars restored with MOD inlays with and without deep margin elevation-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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