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KMID : 1035320170440040405
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Korean Society for Dental Materials
2017 Volume.44 No. 4 p.405 ~ p.414
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Comparison of flexural strength and hardness on denture base resin with silver?fiber filler
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Geum Young-Hee
Kim Bu-Sob
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Abstract
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In this study, we are to compare the effect of added silver-fiber filler on the mechanical properties of antimicrobial denture base resin. The silver-fiber filler were added to two heat-cured resin and one self-cured resin as 5 wt.% and 10 wt.%, respectively. The flexural strength was measured using a universal testing machine and the hardness value was measured using a micro Vickers hardness tester. The surface morphology was observed at a magnification of 5,000 by field emission scanning electron microscope and microscope(×100). All data are in SPSS ver. 24.0 program was used to one-way ANOVA, folloewd by Scheffe test. Flexural strength increased with increasing silver-fiber, and heat-cured resin was significantly higher than self-cured resin. Hardness increased with increasing silver-fiber, and there was no significant difference between heat-cured resin and self-cured resin. Observation of surface morphology on the denture base resin showed no specific difference. For clinical application, we recommend adding 10 wt.% of a silver-fiber filler.
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KEYWORD
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Denture base resin, Flexural strength, Hardness, Silver-fiber filler
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