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The influence of chemical structure on the properties in methacrylate-based dentin adhesives

dc.contributor.authorPark, Jonggu
dc.contributor.authorEslick, John
dc.contributor.authorYe, Qiang
dc.contributor.authorMisra, Anil
dc.contributor.authorSpencer, Paulette
dc.date.accessioned2017-03-06T21:43:36Z
dc.date.available2017-03-06T21:43:36Z
dc.date.issued2012-11-01
dc.identifier.citationPark, Jonggu, John Eslick, Qiang Ye, Anil Misra, and Paulette Spencer. "The Influence of Chemical Structure on the Properties in Methacrylate-based Dentin Adhesives." Dental Materials 27.11 (2011): 1086-093.en_US
dc.identifier.urihttp://hdl.handle.net/1808/23341
dc.description.abstractObjectives

The objective of this study was to investigate the influence of the chemical structure of methacrylate monomers used in dentin adhesives on degree of conversion (DC), water sorption, and dynamic mechanical properties.

Materials and methods

Experimental adhesives containing 2,2-bis[4-(2-hydroxy-3-methacryloxypropoxy) phenyl]-propane (BisGMA), 2-hydroxyethyl methacrylate (HEMA), and co-monomer, 30/45/25 w/w were photo-polymerized. Ethyleneglycol dimethacrylate (EGDM), diethyleneglycol dimethacrylate (DEGDM), triethyleneglycol dimethacrylate (TEGDMA), 1,3-glycerol dimethacrylate (GDM), and glycerol trimethacrylate (GTM) were used as a co-monomer. The adhesives were characterized with regard to DC, water sorption, and dynamic mechanical analysis and compared to control adhesive [HEMA/BisGMA, 45/55 w/w].

Results

DC and water sorption increased with an increase in the number of ethylene glycol units in the monomer. Experimental adhesive containing GDM showed significantly higher storage moduli (p < 0.05) in both dry and wet samples than experimental adhesives containing EGDM or DEGDM. The rubbery moduli of adhesives containing GDM and GTM were found to be significantly greater (p < 0.05) than that of the control. Adhesives containing GTM exhibited the widest tanδ curves, indicating the greatest structural heterogeneity.

Significance

The hydrophilicity, functionality and size of monomers in dentin adhesives affected the water sorption, solubility, crosslink density and heterogeneity of the polymer network. The experimental adhesives containing GDM and GTM showed higher rubbery moduli, indicating higher crosslink density accompanied by a decrease in the homogeneity of the polymer network structure.		en_US
dc.publisherElsevieren_US
dc.rightsThis is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.en_US
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/
dc.subjectDentin adhesivesen_US
dc.subjectStructure/property relationshipsen_US
dc.subjectDynamic mechanical propertyen_US
dc.subjectDegree of conversionen_US
dc.subjectWater soptionen_US
dc.titleThe influence of chemical structure on the properties in methacrylate-based dentin adhesivesen_US
dc.typeArticleen_US
kusw.kuauthorSpencer, Paulette
kusw.kudepartmentMechanical Engineeringen_US
dc.identifier.doi10.1016/j.dental.2011.07.011en_US
dc.identifier.orcidhttps://orcid.org/0000-0002-7334-2277
kusw.oaversionScholarly/refereed, author accepted manuscripten_US
kusw.oapolicyThis item meets KU Open Access policy criteria.en_US
dc.rights.accessrightsopenAccess


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This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.
Except where otherwise noted, this item's license is described as: This is an open access article under the terms of the Creative Commons Attribution-NonCommercial-NoDerivs License 3.0 (CC BY-NC-ND 3.0 US), which permits use and distribution in any medium, provided the original work is properly cited, the use is non-commercial and no modifications or adaptations are made.