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KMID : 0362220120390010049
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Journal of The Korean Research Society for Dental Materials
2012 Volume.39 No. 1 p.49 ~ p.56
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Evaluation of Dental Composite Dispersed with Silver Inorganic Antibacterial Agent
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Moon Ho-Jin
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Abstract
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The purpose of this study was to investigate the antibacterial effect of inorganic-silver particle on the conventional dental composite. Two antibacterial silver particles (Novaron and INC-ZRS) and silica were adopted to the filler system. A visible light system of camphorquinone photo-initiator and 2-(dimethylamino)ethyl methacrylate photo-accelerator was utilized to activate the resin matrix in the polymer composites. The degree of conversion, depth of cure, mechanical strength and antibacterial properties of dental composites were investigated. Two silver antibacterial agents could inhibit the growth of the major oral pathogen Streptococcus mutans. There was no significant difference in mechanical strength. However, there was a significant decrease in depth of cure for the INC-ZRS group. These results indicate that a dental resin composite incorporating silver antibacterial agent may be useful clinically because of its inhibitory effect against Streptococcus mutans and its favorable mechanical properties. Further study should be done to overcome the color instability and to demonstrate the biological stability.
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KEYWORD
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Antibacterial agent, Dental composite, Inorganic-silver particle, Streptococcus metans
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