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KMID : 0362220130400020121
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Journal of The Korean Research Society for Dental Materials
2013 Volume.40 No. 2 p.121 ~ p.127
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Effect of bleaching agents on the color change of different based composite resins
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park Wan-Ky
Kang Aromi
Son Sung-Ae
Hur Bock
Kwon Yong-Hoon
Park Jeong-Kil
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Abstract
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The purpose of this study was to evaluate the color change of a silorane-based and two methacrylated-based resin composites upon exposure to bleaching agents, distilled water (control), 15% carbamide peroxide and 30% hydrogen peroxide for 3 weeks. The colors of all specimens before and after storage in the bleaching agents were measured by a spectrophotometer based on CIE Lab system, and the color differences thereby calculated. Data was statistically analyzed by ANOVA and Tukey’s test. The mean color change in silorane-based resin was significantly higher than that in methacylate-based resin composites regardless of bleaching agents (p＜0.05). The groups treated with 15% carbamide peroxide and 30% hydrogen peroxide showed significantly different color change compared with the control group (p＜0.05). In conclusion, the silorane-based resin composites exhibited more color change (ΔE) after exposure to the bleaching agents.
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KEYWORD
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Bleaching agent, color change, methacarylate-based composite resin, silorane-based composite resin
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