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Dentin bonding and SEM analysis of a new experimental universal adhesive system containing a dendrimer

2020-02Journal article Open access
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dc.contributor.authorCruz, Joana Vasconcelos e
dc.contributor.authorPolido, Mário
dc.contributor.authorBrito, José
dc.contributor.authorGonçalves, Luísa L.
dc.date.accessioned2020-10-22T11:43:57Z
dc.date.available2020-10-22T11:43:57Z
dc.date.issued2020-02
dc.descriptionThis is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.pt_PT
dc.description.abstractDue to their polymerization characteristics, hyper-branched dendrimers have lately shown to be promising candidates for use in dental materials. In this study, a new dental adhesive system was prepared, using a dendrimer derived from 2-isocyanatoethyl methacrylate (G-IEMA), and its adhesive properties were investigated. The exposed dentin was treated with four universal adhesives (UAs): SBU (Scotchbond Universal™), FUT (Futurabond M+™), AE1 (experimental adhesive with Bis-GMA) and AE2 (experimental adhesive with G-IEMA), using Etch & Rinse (ER) or Self Etch (SE) protocols. Composite build-ups were prepared and stored for 24 h at 37 °C in distilled water. Composite/dentin beams were prepared with cross-sectional areas of 1 ± 0.3 mm2 and µTBS (Micro-tensile bond strength) test was performed at 0.5 mm/min. Failures modes were evaluated by stereomicroscopy, and bonding interfaces were observed by scanning electron microscopy (SEM). Statistical analysis of µTBS data was performed using General Linear (GLM) and Linear Mixed Models (LMM). The effect of adhesive type on µTBS was significant (p = 0.010), with AE1 presenting significantly higher µTBS than SBU (p = 0.019). No other differences between adhesives were observed. ER showed significantly better results than SE (p = 0.019), and no significant interactions between the adhesives and protocols were determined. Results obtained so far pinpoint the emergence of a new paradigm in the dental materials field, as G-IEMA can be used successfully as an alternative to Bis-GMA.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationVasconcelos e Cruz, J.; Polido, M.; Brito, J.; Gonçalves, L.L. Dentin Bonding and SEM Analysis of a New Experimental Universal Adhesive System Containing a Dendrimer. Polymers 2020, 12, 461.pt_PT
dc.identifier.doi10.3390/polym12020461pt_PT
dc.identifier.issn2073-4360
dc.identifier.urihttp://hdl.handle.net/10400.26/33756
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherMDPIpt_PT
dc.relation.publisherversionhttps://doi.org/10.3390/polym12020461pt_PT
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt_PT
dc.subjectDendrimerspt_PT
dc.subjectDental adhesivespt_PT
dc.subjectG-IEMApt_PT
dc.subjectMethacrylatept_PT
dc.subjectDentin bondingpt_PT
dc.subjectSEM analysispt_PT
dc.titleDentin bonding and SEM analysis of a new experimental universal adhesive system containing a dendrimerpt_PT
dc.typejournal article
dspace.entity.typePublication
oaire.citation.startPage461pt_PT
oaire.citation.titlePolymerspt_PT
oaire.citation.volume12(2)pt_PT
rcaap.rightsopenAccesspt_PT
rcaap.typearticlept_PT

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