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KMID : 0848120150400040167
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International Journal of Oral Biology
2015 Volume.40 No. 4 p.167 ~ p.173
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Antimicrobial Effect of Low Temperature Atmospheric Plasma against Oral Pathogens
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Kim Young-Min
Choi Byul-Bo-Ra
Park Sang-Rye
Kim Ji-Young
Kim Gyoo-Cheon
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Abstract
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The purpose of this study was to investigate the antibacterial effect of the low temperature atmospheric plasma device with needle tip designed for easy approach to the oral cavity and root canal against Streptococcus mutans, Enterococcus faecalis and Candida albicans. The antibacterial activities evaluated by measuring clear zone of agar plate smeared with each bacteria after plasma treatment. To quantify antibacterial effects, dilution plate method was used. In addition, scanning electron microscope (SEM) was used for observation of changes in bacterial morphology. As treatment time of plasma increased, the clear zone was enlarged. The death rate was more than 99%. The SEM results showed that the globular shape of bacteria was distorted. These results suggest that needle tip plasma could be an innovative device for prevention of dental caries, and treatment of apical infection and soft tissue diseases.
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KEYWORD
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antimicrobial effect , Streptococcus mutans , Enterococcus faecalis , Candida albicans , nonthermal
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