Material properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversity Medical Center Göttingen-
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorForschungszentrum Jülich GmbH-
Autor(es): dc.creatorPaiva, M. F.-
Autor(es): dc.creatorRizk, M.-
Autor(es): dc.creatorPessan, J. P.-
Autor(es): dc.creatorKreutz, M.-
Autor(es): dc.creatorRohland, B.-
Autor(es): dc.creatorBiehl, R.-
Autor(es): dc.creatorStadler, A.-
Autor(es): dc.creatorStellbrink, J.-
Autor(es): dc.creatorWiegand, A.-
Data de aceite: dc.date.accessioned2025-08-21T22:23:53Z-
Data de disponibilização: dc.date.available2025-08-21T22:23:53Z-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2023-07-29-
Data de envio: dc.date.issued2022-11-30-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.dental.2022.09.020-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/246054-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/246054-
Descrição: dc.descriptionObjectives: To investigate the effect of methacrylate polyhedral oligomeric silsesquioxanes (POSS-8) on various material properties and mineral precipitation potential of a resin infiltrant. Methods: A TEGDMA-based resin infiltrant was mixed with 0.5, 1, 3, 5 or 10 wt% POSS-8 or left unchanged (control). Degree of conversion (DC), water sorption (WS), viscosity, elastic modulus (E-modulus), flexural strength (FS), Knoop microhardness (KHN) and softening ratio (SR) were assessed. Growth of calcium phosphate (Ca/P) precipitates infiltrant-treated bovine enamel and dentin specimens immersed in artificial saliva or artificial dentinal fluid, respectively, for 28 days was analyzed by scanning electron microscopy and energy-dispersive X-ray spectroscopy. For viscosity assessment, pure TEGDMA filled with 0–10 wt% POSS-8 was used. Statistical analyses were performed using ANOVA and Tukey's post-hoc tests (p < 0.05). Results: POSS-8 did not change the flexural strength, water sorption and softening ratio. The apparent degree of conversion was increased at lower concentrations only while E-modulus remained constant in almost all groups. The particles led to a slight decrease of KHN at concentrations below 3%. The effect on viscosity is comparable to the reinforcement effect. Ca/P precipitates formed on dentin specimens treated with POSS-8-filled infiltrant after 4 weeks of immersion, but were not detected on the control infiltrant. The mineral precipitation on enamel was not improved by POSS-8. Significance: POSS-8 particles did not worsen the material properties of the resin infiltrant, while the Ca/P precipitation on dentin was stimulated.-
Descrição: dc.descriptionDepartment of Preventive Dentistry Periodontology and Cariology University Medical Center Göttingen-
Descrição: dc.descriptionDepartment of Pediatric Dentistry and Public Health Sao Paulo State University (UNESP) School of Dentistry-
Descrição: dc.descriptionJülich Centre for Neutron Science (JCNS) & Institute for Complex Systems (ICS) Forschungszentrum Jülich GmbH-
Descrição: dc.descriptionDepartment of Pediatric Dentistry and Public Health Sao Paulo State University (UNESP) School of Dentistry-
Formato: dc.format1900-1909-
Idioma: dc.languageen-
Relação: dc.relationDental Materials-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectBioactive fillers-
Palavras-chave: dc.subjectDegree of conversion-
Palavras-chave: dc.subjectElastic modulus-
Palavras-chave: dc.subjectEnamel and dentin lesion-
Palavras-chave: dc.subjectFlexural strength-
Palavras-chave: dc.subjectKnoop hardness-
Palavras-chave: dc.subjectPOSS-
Palavras-chave: dc.subjectResin infiltrant-
Palavras-chave: dc.subjectViscosity-
Título: dc.titleMaterial properties and bioactivity of a resin infiltrant functionalized with polyhedral oligomeric silsesquioxanes-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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