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dc.contributor.authorBarzegar, A
dc.contributor.authorGhaffari, T
dc.date.accessioned2018-08-26T09:31:16Z
dc.date.available2018-08-26T09:31:16Z
dc.date.issued2018
dc.identifier.urihttp://dspace.tbzmed.ac.ir:8080/xmlui/handle/123456789/56970
dc.description.abstractBackground: Incorporation of extra fillers into dental resins might enhance their physical properties. In this study, the tensile and impact strengths of modified heat-curing acrylic resin reinforced with nanoclay were investigated. Materials and Methods: In this experimental study, nanoclay-acrylic resin composite was prepared by mixing 0.5, 1, and 2 wt% of nanoclay with methacrylate monomer in an ultrasonic probe, followed by mixing with the polymethylmethacrylate (PMMA) powder. 24 cubic 20 mm -- 20 mm -- 200-mm specimens for each test, 18 samples containing nanoclay and 6 samples for the control group and a total of 48 samples were prepared. The tensile and impact strengths of the samples were tested according to ISO 527 and 179, respectively. One-way ANOVA was used for statistical analysis, followed by multiple comparison tests (Scheffé 's test). Statistical significance was set at P < 0.05. Results: The maximum mean tensile and impact strengths were recorded in the control group, and an acrylic resin containing 2% of nanoclay demonstrated the minimum mean in all the tests. Increasing the percentage of nanoclay in PMMA compromised the tensile strength (P < 0.05) with no effect on its impact strength. Conclusion: Incorporation of nanoclay particles into acrylic resins can adversely affect the mechanical properties of the final products, and this effect is directly correlated with the concentration of nanoparticles. © 2018 Dental Research Journal.
dc.language.isoEnglish
dc.relation.ispartofDental Research Journal
dc.titleNanoclay-reinforced polymethylmethacrylate and its mechanical properties
dc.typeArticle
dc.citation.volume15
dc.citation.issue4
dc.citation.spage295
dc.citation.epage301
dc.citation.indexScopus
dc.identifier.DOIhttps://doi.org/10.4103/1735-3327.237246


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