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Characterization of Methacrylate-Based Resins Containing Methacryl-Polyhedral Oligomeric Silsesquioxanes (MA-POSS-8)

dc.contributor.authorKreutz, Marietta
dc.contributor.authorWiegand, Annette
dc.contributor.authorStawarczyk, Bogna
dc.contributor.authorLümkemann, Nina
dc.contributor.authorRizk, Marta
dc.date.accessioned2021-06-24T13:04:45Z
dc.date.available2021-06-24T13:04:45Z
dc.date.issued2021de
dc.identifier.urihttp://resolver.sub.uni-goettingen.de/purl?gs-1/17851
dc.description.abstractThe use of functionalized dental adhesives that might prevent degradation of the dentin hybrid layer has been proposed. The aim of the study was to characterize the physicochemical properties and the potential to induce mineral precipitation of methacrylate-based resins containing methacryl-functionalized polyhedral oligomeric silsesquioxane (MA-POSS-8). In total, six different compositions of resins based on bisphenol A glycerolate dimethacrylate (BisGMA, 40 to 60 wt.%), triethylene glycol dimethacrylate (TEGDMA, 5 to 35 wt.%) and 2-hydroxyethyl methacrylate (HEMA, 25 or 35 wt.%) were prepared and infiltrated with 5 wt.% MA-POSS-8. Unfilled resins served as control. Degree of conversion, viscosity, Martens hardness, indentation modulus, water sorption, and sol fraction were investigated. Polymerized specimens were examined by SEM/EDX for the presence of Ca/P precipitates after immersion in artificial saliva for 28 days at 37 °C. Statistical analysis was performed with two-way ANOVA and Tukey’s post-hoc test (p < 0.05). The degree of conversion ranged from 55.0 to 59.8% and was not affected by the addition of MA-POSS-8. Viscosity ranged from 60.0 to 422.3 mPa*s and was not affected by MA-POSS-8 except for one methacrylate-based resin with 60 wt.% BisGMA. Martens hardness and indentation modulus ranged from 161.3 to 138.1 N/mm2 and 4.2 to 3.9 kN/mm2 and were affected by MA-POSS-8 in only one resin (50 wt.% BisGMA, 25 wt.% TEGDMA, 25 wt.% HEMA). Water sorption was not affected by MA-POSS-8; sol fraction was below the detection limit. Formation of Ca/P precipitates was observed on all specimens of test and control groups. Material properties were not affected adversly by MA-POSS-8 except for slight differences in Martens Hardness, indentation modulus, viscosity, in some groups.de
dc.description.sponsorshipOpen-Access-Publikationsfonds 2021
dc.language.isoengde
dc.rightsopenAccess
dc.rightsNamensnennung 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectdental resin; POSS; properties; bioactivityde
dc.subject.ddc610
dc.titleCharacterization of Methacrylate-Based Resins Containing Methacryl-Polyhedral Oligomeric Silsesquioxanes (MA-POSS-8)de
dc.typejournalArticlede
dc.identifier.doi10.3390/ma14071680
dc.type.versionpublishedVersionde
dc.relation.eISSN1996-1944
dc.bibliographicCitation.volume14de
dc.bibliographicCitation.issue7de
dc.type.subtypejournalArticle
dc.bibliographicCitation.articlenumber1680de
dc.description.statuspeerReviewedde
dc.bibliographicCitation.journalMaterialsde


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