目的:进行这项研究是为了评估纳米复合修复材料的颜色稳定性和碳酸软饮料的侵蚀性(可口可乐;可口可乐公司,亚特兰大,格鲁吉亚,美国)和包装橙汁(RealFruitPowerOrange;DaburLtd,Ghaziabad,北方邦,印度)的表面微观形态。
方法:纳米复合材料(HerculitePrécis;KaVoKerr,Brea,加州,美国)使用硅圆柱形模具制备。最初,所有标本均保存在五个培养皿中的人工唾液中;每个培养皿中有12个标本。在培养皿中,将样本每天浸入相应的饮料中一次或两次。在每次浸泡之前和之后,标本在室温下储存在人工唾液中。人工唾液每天都换,即,每24小时整个过程进行三个月,然后使用分光光度计评估颜色稳定性,并使用扫描电子显微镜评估表面微观形态。现在,样品暴露于充气饮料(可口可乐)和包装橙汁(真正的橙)被停止,标本连续保存在人工唾液中。该程序进行一个月,然后评价颜色稳定性。使用PASWStatisticsforWindows分析信息,版本18.0(2009年发布;SPSSInc.,芝加哥,美国)。0.05的p值被认为是显著的。
结果:三个月后的p值,<0.001(p<0.05)表示I组的平均色差值,II,III,IV,和V在五组之间显示出统计学上的显着变化,同样,一个月后的p值,<0.001(p<0.05)表示I组的平均色差值,II,III,IV,和V显示5组之间的统计学显著变化。每天两次浸入碳酸饮料中的样本在临床上显示出比复合修复材料上的包装橙汁和人工唾液更多的颜色变化。可口可乐,充气饮料,与RealFruitPowerOrange和假唾液相比,在复合修复材料上具有更高的侵蚀潜力。
结论:研究结果与反复接触碳酸饮料(如可口可乐和包装果汁)会降低牙科修复物的表面质量的假设一致。
OBJECTIVE: This investigation was carried out to evaluate the color stability of a nanocomposite restorative material and the erosive potential of carbonated soft drinks (Coca-Cola; The Coca-Cola Company, Atlanta, Georgia, United States) and packaged orange juice (Real Fruit Power Orange; Dabur Ltd, Ghaziabad, Uttar Pradesh, India) on its surface micromorphology.
METHODS: Sixty discs (2mm thick and 10mm diameter) of nanocomposite material (Herculite Précis; KaVo Kerr, Brea, California, United States) were prepared using a silicon cylindrical mold. Initially, all the specimens were stored in artificial saliva in five Petri dishes; 12 specimens in each dish. In the Petri dishes, the specimens were immersed in the respective beverages once or twice a day. Before and after each immersion, the specimens were stored in artificial saliva at room temperature. Artificial saliva was changed each day, i.e., every 24 hours. The whole procedure was carried out for three months and then evaluated for color stability using a spectrophotometer and surface micromorphology using a scanning electron microscope. Now, the exposure of specimens to aerated drinks (Coca-Cola) and packaged orange juice (Real Orange) was put to a halt, and specimens were kept continuously in artificial saliva. This procedure was carried out for one month and then evaluated for color stability. The information was analyzed using PASW Statistics for Windows, Version 18.0 (Released 2009; SPSS Inc., Chicago, United States). A p-value of 0.05 was considered significant.
RESULTS: The p-value after three months, which is < 0.001 (p<0.05) indicates that the mean color difference values for groups I, II, III, IV, and V show a statistically significant change between the five groups, and similarly, the p-value after one month, which is < 0.001 (p<0.05) indicates that the mean color difference values for groups I, II, III, IV, and V show a statistically significant change between the five groups. Specimens immersed in the carbonated drink twice a day showed clinically more color change than packaged orange juice and artificial saliva on the composite restorative material. Coca-Cola, an aerated drink, was shown to have a higher erosive potential on the composite restorative material than Real Fruit Power Orange and fake saliva.
CONCLUSIONS: The findings are consistent with the hypothesis that repeated exposure to carbonated beverages (such as Coca-Cola and packaged juice) degrades the surface qualities of dental restorations.