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首页> 外文期刊>Journal of Research in Dentistry >Influence of light source and immersion media in surface roughness and hardness of a nanofilled composite resin
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Influence of light source and immersion media in surface roughness and hardness of a nanofilled composite resin

机译：光源和浸没介质对纳米填充复合树脂表面粗糙度和硬度的影响

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The study evaluated the influence of light curing units and immersion media on superficial roughness and microhardness of the nanofilled composite resin Supreme XT (3M/ESPE). Light curing units used were: XL 3000 (3M/ESPE), Jet Lite 4000 Plus (JMorita) and Ultralume Led 5 (Ultradent) and immersion media were artificial saliva, Coke?, tea and coffee, totaling 12 experimental groups. Specimens (10mm x 2mm) were immersed in each respective solution for 5 seconds, three times a day, during 60 days and so, were submitted to measure of superficial roughness (Ra) and Vickers hardness. Data were subjected to two-way ANOVA test (p<0.05). Results showed that only the light source factor showed statistically difference for hardness. It was observed that the hardness of the composite resin Filtek Supreme XT (3M/ESPE) was influenced by the light source (p<0.01) independently of the immersion media (p= 0.35) and the Jet Lite 4000 Plus (JMorita) was the light curing unit that presented lower values. In relation to surface roughness, it was noted no-significant statistical difference for light source (p=0.84), when specimens were immersed in different beverages (p=0.35).
机译：该研究评估了光固化单元和浸没介质对纳米填充复合树脂Supreme XT（3M / ESPE）的表面粗糙度和显微硬度的影响。使用的光固化设备为：XL 3000（3M / ESPE），Jet Lite 4000 Plus（JMorita）和Ultralume Led 5（Ultradent），浸入介质为人工唾液，可乐，茶和咖啡，共12个实验组。将标本（10mm x 2mm）浸入每种溶液中5秒钟，每天60次，共三天，共60天，如此，将其用于测量表面粗糙度（Ra）和维氏硬度。数据进行双向ANOVA测试（p <0.05）。结果表明，只有光源因子对硬度有统计学差异。观察到，复合树脂Filtek Supreme XT（3M / ESPE）的硬度受光源（p <0.01）的影响，与浸入介质（p = 0.35）无关，而Jet Lite 4000 Plus（JMorita）是光固化单元的数值较低。关于表面粗糙度，当将标本浸入不同的饮料中（p = 0.35）时，注意到光源的统计差异无统计学意义（p = 0.84）。

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