运动饮料对不同光固化复合树脂颜色稳定性的影响

为了评估3种运动饮料对浸泡30d和180d后的光固化复合树脂材料的颜色稳定性的影响,分别测定4种树脂复合材料的基准色值(L*、a*、b*),从每组复合材料中随机抽取样本浸入运动饮料及蒸馏水中30d和180d,重新测量浸没后的样品颜色值,并计算颜色变化值(△E),使用Kruskal-Wallis和Mann-Whitney方法评估数据。结果显示:树脂复合材料在180d的评估期内呈现出颜色变化,在30d时,浸泡在Burn中的APX试样中观察到最高的颜色变化(P<0.01);180d后,Posterior显示较少的变色(P<0.001)。在所有测试的复合材料中,Burn运动饮料都呈现出最高的褪色水平(P<0.01)。测试样品在180d的评估期内,颜色稳定性主要受到溶液类型、浸泡时间和复合材料成分等因素的影响。结果表明长时间饮用运动饮料,应当注意运动饮料对牙齿的染色效果和潜在的腐蚀作用。

Effect of sports drinks on color stability of different light-cured composite resins

In this study,in order to evaluate the effect of three kinds of sports drinks on the color stability of light cured composite resin materials after 1 and 6 months of immersion,the reference color values(L~*,a~*,b~*)of four kinds of resin composites were measured,and samples from each group of composite materials were randomly selected and immersed in sports drinks and distilled water for 1 month and 6 months.The color values of the samples after immersion were re measured,and the color change value(DE)was calculated.The data were evaluated by Kruskal-Wallis and Mann-Whitney methods.The resin composite showed a color change over a 6-month evaluation period,with the highest color change observed in APX samples immersed in burn at 1 month(P<0.01);after 6 months,Posterior showed less discoloration(P<0.001).Among the composite materials tested,Burn sports drink showed the highest fading level(P<0.01).During the 6-month evaluation period,the color stability of the test samples in this study was mainly affected by the solution type,soaking time and composite composition.The results showed that long-term in-taker of sports should pay attention to their dyeing effect and potential corrosion.