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Flexural strength and microhardness of anterior composites after accelerated aging

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Flexural strength and microhardness of anterior composites after accelerated aging

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dc.contributor.author Pala, Kansad es
dc.contributor.author Tekçe, Neslihan es
dc.contributor.author Tuncer, Safa es
dc.contributor.author Demirci, Mustafa es
dc.contributor.author Öznurhan, Fatih es
dc.contributor.author Serim, Merve es
dc.date.accessioned 2017-07-18T11:54:01Z
dc.date.available 2017-07-18T11:54:01Z
dc.date.issued 2017 es
dc.identifier.citation Pala, Kan?ad ; Tekçe, Neslihan ; Tuncer, Safa ; Demirci, Mustafa ; Öznurhan, Fatih ; Serim, Merve. Flexural strength and microhardness of anterior composites after accelerated aging. En: Journal of Clinical and Experimental Dentistry, 9 3 2017: 424-430 es
dc.identifier.uri http://hdl.handle.net/10550/59592
dc.description.abstract This study aimed to evaluate the flexural strength and microhardness of three different anterior composites after 10 000 thermocycles. The mechanical properties of a nano-fill composite (Filtek Ultimate Universal Restorative (FUR) (Enamel)), a nano-hybrid composite (Clearfil Majesty ES2 (ES2) (Enamel)), and a micro-hybrid composite (G Aenial Anterior (GAA)) were investigated in this study. For the microhardness test, 8-mm diameter and 2-mm thickness composite discs were used (n = 10), and for the flexural strength test, 25x2x2 mm bar-shaped specimens were prepared (n = 13). The specimens were tested at 24 h and after 10 000 thermocycles. Data were analyzed using two-way analysis of variance and the post-hoc Tukey test (p < .05). Correlations between hardness and flexural strength were calculated using Pearson?s correlation analysis. There was a significant difference in the microhardness values of the materials (p < .05). FUR exhibited significantly higher microhardness than ES2 and GAA. However, the flexural strength of three composites was statistically similar at 24 h (p > .05). Pearson correlation analysis revealed that there was a negative relationship between the mean hardness and flexural strength values (correlation coefficient = -0.367, p = .043). After 10 000 thermocycles, microhardness values of each material and flexural strength of ES2 and GAA decreased significantly according to 24 h. The nano-fill composite FUR displayed significantly higher microhardness values. However, each resin composite was statistically similar for flexural strength values. Ten thousand thermocycles significantly affected microhardness and flexural strength. es
dc.title Flexural strength and microhardness of anterior composites after accelerated aging es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.53463 es
dc.type.hasVersion VoR es_ES

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