Tensile strength and impact strength of color modified acrylic resin reinforced with titanium dioxide nanoparticles

Journal of Clinical and Experimental Dentistry
Loghman GhahremaniNiloofar Sabzikari

Abstract

Poor mechanical properties are among the main limitations of acrylic resins. Addition of titanium dioxide (TiO2) nanoparticles to acrylic resin has been shown to improve its mechanical properties with an adverse effect on its color. Thus, this study sought to assess the tensile and impact strength of a color modified heat cure acrylic resin reinforced with TiO2 nanoparticles. In this in vitroexperimental study, 1wt% TiO2 nanoparticles were added to SR Triplex Hot heat-cure acrylic resin powder and mixed. Pigments and color fibers were also added and 18 samples were fabricated of this paste for tensile and impact strength testing (n=9) according to ISO5271. Eighteen control samples were also fabricated from the acrylic powder without any modification. Independent t-test was used for data analysis (P< 0.05). The mean tensile strength of the reinforced group was found to be significantly higher (difference of 11 MPa) than that of the control group (P=0.001). The mean impact strength of the reinforced group was 7 MPa higher than that of the control group and this difference was statistically significant as well (P=0.001). The color modified acrylic resin reinforced with 1wt% TiO2 showed significantly higher tensile and impact stren...Continue Reading

Citations

Dec 21, 2019·Journal of Dental Research, Dental Clinics, Dental Prospects·Elnaz MoslehifardSaeed Shirkavand
Aug 29, 2021·Pharmaceuticals·Gustavo MoraesWalter L Siqueira

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