The Antimicrobial and Mechanical Properties of Acrylic Resins with Al2O3 and SiO2 Nanoparticles
Journal Title: International Journal of Medical Science and Innovative Research (IJMSIR) - Year 2018, Vol 3, Issue 10
Abstract
The purpose of this study was to evaluate the effects of the incorporation of Al2O3 and SiO2 nanoparticles on heat-activated acrylic resin polymerized at different times and their influence on resin’s surface roughness and antimicrobial capacity against Streptococcus mutans and Candida albicans. One-hundred twenty specimens in 10 mm diameter and 2 mm thickness were divided into two groups as A (polymerized for 30 min. at 100 oC)and B (polymerized for 8 hours at 100 oC).Group A and B were divided to five subgroups according to type and concentration of reinforcing nanoparticles (n=12). 1:Without nanoparticles (control group), 2:%3 wt Al2O3,3:%5 wt Al2O3, 4: %3 wt SiO2, 5: %5 wt SiO2. Antimicrobialanalysis of specimens were performed againstStreptococcus mutans and Candida albicans. Surface roughness of specimens was measured by AFM system in non-contact mode. The data were statistically analyzed using Kolmogorov–Smirnov, Two-way ANOVA and Tukey’s HSD test.The incorporation of both nanoparticles significantly affected the antimicrobial capacity against Streptococcus Mutans and Candida Albicans(p<0.05). Group A specimensshowed higher bacterial and fungal accumulation than group B specimens. Group A specimens showed higher surface roughness than group B specimens. Al2O3 and SiO2 nanoparticles increased surface roughness of A and B groups.
Authors and Affiliations
Dr. Necla Demir
Keywords
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