Substrate Rigidity Effect on CAD/CAM Restorations at Different Thicknesses

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorUniversidade Estadual Do Oeste Do Paraná (UNIOESTE)-
Autor(es): dc.contributorVrije Universiteit-
Autor(es): dc.creatorPucci, César Rogério-
Autor(es): dc.creatorMafetano, Ana Paula Valente Pinho-
Autor(es): dc.creatorBorges, Alexandre Luiz Souto-
Autor(es): dc.creatorDe Andrade, Guilherme Schmitt-
Autor(es): dc.creatorDal Piva, Amanda Maria De Oliveira-
Autor(es): dc.creatorKleverlaan, Cornelis J.-
Autor(es): dc.creatorTribst, João Paulo Mendes-
Data de aceite: dc.date.accessioned2025-08-21T23:37:44Z-
Data de disponibilização: dc.date.available2025-08-21T23:37:44Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2021-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1055/s-0042-1757910-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/248094-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/248094-
Descrição: dc.descriptionObjectives  This article evaluated the effect of substrates rigidities on the post-fatigue fracture resistance of adhesively cemented simplified restorations in lithium disilicate glass ceramic. Methods  Precrystalized computer-aided design/computer-aided manufacturing ceramic blocks were processed into disc-shaped specimens (n = 10, O = 10 mm), mimicking a simplified restoration at two thicknesses (0.5 and 1.0 mm). Thereafter, the discs were cemented onto different base substrates (dentin analogue [control], dentin analogue with a central core build-up of resin composite [RC], or glass ionomer cement [GIC]). The specimens were subjected to mechanical cycling in a chewing simulator (100 N, 1 × 10 6cycles, 4 Hz) and then subjected to thermocycling aging (10,000 cycles, 5/37/55°C, 30 seconds). After the fatigue protocol, the specimens were loaded until failure (N) in a universal testing machine. Finite element analysis calculated the first principal stress at the center of the adhesive interface. Results  The results showed that restoration thickness, type of substrate, and their interaction were statistically significant (one-way analysis of variance; p < 0.001). Regardless the restoration thickness a higher fracture load was observed for specimens cemented to dentin analogue. Among the base materials, RC build-up presented the highest fracture load and lower stress magnitude for both restoration thicknesses in comparison with GIC build-up. The 0.5-mm restoration showed higher stress peak and lower fracture load when submitted to the compressive test. Conclusion  More flexible base material reduces the fracture load and increases the stress magnitude of adhesively cemented lithium disilicate restorations regardless the ceramic thickness. Therefore, more rigid substrates are suggested to be used to prevent restoration mechanical failures.-
Descrição: dc.descriptionDepartment of Restorative Dentistry Institute of Science and Technology São Paulo State University (Unesp), São José dos Campos-
Descrição: dc.descriptionDepartment of Dentistry Universidade Estadual Do Oeste Do Paraná (UNIOESTE)-
Descrição: dc.descriptionDepartment of Dental Materials Science Academic Centre for Dentistry Amsterdam (ACTA) Universiteit Van Amsterdam Vrije Universiteit-
Descrição: dc.descriptionDepartment of Oral Regenerative Medicine Academic Centre for Dentistry Amsterdam (ACTA) Universiteit Van Amsterdam Vrije Universiteit-
Descrição: dc.descriptionDepartment of Restorative Dentistry Institute of Science and Technology São Paulo State University (Unesp), São José dos Campos-
Idioma: dc.languageen-
Relação: dc.relationEuropean Journal of Dentistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectadhesion-
Palavras-chave: dc.subjectcyclic loading-
Palavras-chave: dc.subjectdental ceramics-
Palavras-chave: dc.subjectfinite element analysis-
Palavras-chave: dc.subjectmonolithic restorations.-
Título: dc.titleSubstrate Rigidity Effect on CAD/CAM Restorations at Different Thicknesses-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

Não existem arquivos associados a este item.