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KMID : 1035320180450010001
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Korean Society for Dental Materials
2018 Volume.45 No. 1 p.1 ~ p.10
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Effects of Bioactive Glass on Microhardness of Bleached Enamel Surface
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Park Young-Hee
Choi An-Na
Jung Kyoung-Hwa
Park Jeong-Kil
Kwon Yong-Hoon
Son Sung-Ae
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Abstract
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The purpose of this study was to examine effects of bioactive glass on Vickers hardness of bleached enamel surface. Enamel specimens were bleached with 15% carbamide peroxide (CP) for 14days. After bleaching, Artificial saliva (AS), 45S5 bioactive glass (BAG) and fluoride varnish (FV) are applied each specimens (n=10). The Vickers hardness of the specimens was measured before and after the bleaching, after the remineralized treatment at 1 day and after 7 and 14 days. The Vickers hardness on enamel surface after bleaching decreased statistically (p<0.05) compared to before bleached enamel surface. The Vickers hardness increased significantly in the BAG and FV groups compared to the AS group values at 1 day and 7 days after remineralization (P<0.05). 45S5 bioactive glass rapidly increase Vickers hardness of the bleached enamel surface.
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KEYWORD
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Bleaching, 45S5 bioacitive glass, Remineralization
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