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目的:探讨多酚对3种纳米树脂颜色及透光率的影响的相关研究。方法:采用3种6色纳米树脂(3M Z350 A2、A3;Shofu BeautifulⅡA2、A3;Clearfil Majesty A2、A3)各制作4个试件。利用爱色丽color i7台式分光光度仪测量初始CIE L*、a*、b*值及透光率T值,接着试件随机浸泡在多酚食物(咖啡、红酒、绿茶、人工唾液)中,测量每周的颜色及透光率的变化值进行统计分析。结果:4周中试件均发生了不同程度的颜色及透光率变化,色差值变化范围:0.26~26.63,红酒色差值最大、人工唾液色差值最小;3M颜色稳定性最好、可乐丽菲露颜色稳定性最差。透光率值整体降低,A3色变化值小于A2色。结论:食物中的多酚类物质使树脂材料颜色及透光率发生改变,树脂修复仍然存在不足,临床选择应该权衡利弊。
Objective: To study the effects of polyphenols on the color and light transmittance of three kinds of nanocapsules. Methods: Four specimens of three kinds of 6-color nano-resin (3M Z350 A2, A3; Shofu BeautifulⅡA2, A3; Clearfil Majesty A2, A3) were made. The initial CIE L *, a *, b * values and light transmittance T values were measured using an X-Rite color i7 benchtop spectrophotometer. Then the specimens were immersed in polyphenols (coffee, red wine, green tea, artificial saliva) Measurements of weekly changes in color and light transmittance were statistically analyzed. Results: The color and light transmittance of test specimens all changed in four weeks. The range of color difference varied from 0.26 to 26.63, the color difference of red wine was the highest, the color difference of artificial saliva was the smallest. The color stability of 3M was the best, Coke Lilifei color stability of the worst. The overall transmittance value decreases, A3 color change value is less than A2 color. CONCLUSION: Polyphenols in food change the color and light transmittance of resin materials. There are still some problems in resin repair. The clinical options should weigh the advantages and disadvantages.