橙汁和茶叶对聚醚醚酮、聚甲基丙烯酸甲酯和A复合树脂颜色稳定性的影响

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摘要

目的:研究橙汁和茶对聚醚醚酮(PEEK)、聚甲基丙烯酸甲酯(PMMA)和复合树脂颜色稳定性的影响。材料与方法:在体外实验研究中,以PEEK、PMMA和Crea为原料制备45个厚度为1 mm、直径为15 mm的圆盘状标本。木质复合树脂(每种树脂n=15)。根据CIE L*a*b*色空间,用分光光度计测量样品的基线色参数。将样品分别浸泡在37℃的橙汁、蒸馏水和茶叶中,每天浸泡2 h,连续30天,再次测量样品的颜色参数。采用单因素和重复测量方差分析和Tukey检验计算和分析标本的颜色变化(ΔE)。结果:经单因素方差分析,修复材料类型对ΔE无显著影响(P=0.113),而着色液类型对ΔE有显著影响(P=0.113),且临床可检出。结论:在本体外研究的限制范围内,由于三种被测材料的颜色稳定性相当,因此似乎着色液类型对颜色稳定性的影响比材料类型更突出。茶可以引起临床可检测的所有测试材料的颜色变化。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of Orange Juice and Tea on Color Stability of Polyetheretherketone, Polymethyl Methacrylate, and A Composite Resin
Objectives: This study aimed to assess the effects of orange juice and tea on color stability of polyetheretherketone (PEEK), polymethyl methacrylate (PMMA), and a composite resin. Materials and Methods: In this in vitro, experimental study, 45 disc-shaped specimens with 1 mm thickness and 15 mm dimeter were fabricated from PEEK, PMMA and Crea.lign composite resin (n=15 from each). The baseline color parameters of the specimens were measured by a spectrophotometer according to the CIE L*a*b* color space. The specimens were then immersed in orange juice, distilled water and tea at 37°C for 2 h/day for 30 days, and their color parameters were measured again. The color change (ΔE) of specimens was calculated and analyzed using one-way and repeated measures ANOVA and Tukey’s test. Results: According to one-way ANOVA, type of restorative material had no significant effect on ΔE (P=0.113) but type of coloring solution significantly affected the ΔE (P<0.001). The interaction effect of type of restorative material and type of solution on ΔE was not significant (P=0.731). Color change of specimens in distilled water and orange juice was < 2.7 and not clinically perceivable; however, ΔE of specimens in tea solution was > 5, and clinically detectable. Conclusion: Within the limitations of this in vitro study, it appears that type of coloring solution has a more prominent effect on color stability than the type of material since the three tested materials showed comparable color stability. Tea can cause clinically detectable color change in all tested materials.
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