Polymerization Shrinkage and Push-out Bond Strength of Different Composite Resins for Sealing the Screw-access Hole on Implant-supported Crowns

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Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniversiteit van Amsterdam and Vrije Universiteit-
Autor(es): dc.creatorTribst, João Paulo Mendes [UNESP]-
Autor(es): dc.creatorPiva, Amanda Maria de Oliveira Dal [UNESP]-
Autor(es): dc.creatorGonçalves, Natália Ines [UNESP]-
Autor(es): dc.creatorBorges, Alexandre Luiz Souto [UNESP]-
Autor(es): dc.creatorBottino, Marco Antonio [UNESP]-
Autor(es): dc.creatorKleverlaan, Cornelis Johannes-
Data de aceite: dc.date.accessioned2022-02-22T00:52:17Z-
Data de disponibilização: dc.date.available2022-02-22T00:52:17Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2019-12-31-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.3290/j.jad.a45182-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/208059-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/208059-
Descrição: dc.descriptionPurpose: To evaluate the effect of composite resin polymerization shrinkage stress on the stress distribution in the implant-supported crown-access hole, and on the bond strength between the ceramic and composite resin. Materials and Methods: A 3D model of a ceramic crown, in which the access hole was filled with composite resin (conventional or bulk-fill), was used to evaluate the stress distribution in the access hole using finite element analysis. The contacts were considered bonded and the polymerization shrinkage was simulated based on the coefficient of linear thermal expansion of each resin. The push-out test (1 mm/min, 100 kgf) was performed on perforated lithium disilicate samples filled with conventional or bulk-fill resins to validate the stress data of the bond strength. One-way ANOVA and Tukey's test were used to analyze the bond strength data, with α set at 5%. Results: Conventional resin showed the worst stress distribution and highest displacement values, von Mises stress, maximum principal strain, maximum principal stress, and maximum shear stress vs the bulk-fill resin. Statistically significantly greater bond strength was observed for bulk-fill (13.40 ± 5.59 MPa) than the conventional resin (8.70 ± 3.02 MPa). Conclusion: Comparing both materials tested in the present study, the use of bulk-fill composite resin to seal the screw-access hole is suggested to reduce the stress concentration and increase bond strength to the ceramic crown.-
Descrição: dc.descriptionDentist Department of Dental Materials and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology-
Descrição: dc.descriptionAdjunct Professor Department of Dental Material and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology-
Descrição: dc.descriptionProfessor Department of Dental Material and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology-
Descrição: dc.descriptionProfessor Department of Dental Materials Science Academic Centre for Dentistry Amsterdam (ACTA) Universiteit van Amsterdam and Vrije Universiteit-
Descrição: dc.descriptionDentist Department of Dental Materials and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology-
Descrição: dc.descriptionAdjunct Professor Department of Dental Material and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology-
Descrição: dc.descriptionProfessor Department of Dental Material and Prosthodontics São Paulo State University (UNESP) Institute of Science and Technology-
Formato: dc.format523-530-
Idioma: dc.languageen-
Relação: dc.relationJournal of Adhesive Dentistry-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectcomposite resins-
Palavras-chave: dc.subjectfinite element analysis-
Palavras-chave: dc.subjectincremental technique-
Palavras-chave: dc.subjectpolymerization-
Título: dc.titlePolymerization Shrinkage and Push-out Bond Strength of Different Composite Resins for Sealing the Screw-access Hole on Implant-supported Crowns-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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