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牙色树脂基复合材料的颜色稳定性和转化程度

Cristina Benavides-Reyes¹, María M Pérez^2,3, Maria Tejada-Casado^2,3

¹Department of Stomatology, Faculty of Dentistry, Colegio Máximo, Campus de Cartuja s/n. University of Granada, Granada, Spain.

Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]

|July 5, 2023

概括

牙颜色的树脂复合材料显示了多种颜色的稳定性,红酒造成了显著的染色. 虽然转换程度足够,但染色可能会影响长期的美学效果.

科学领域:

牙科材料科学牙科材料科学
生物材料工程生物材料工程

背景情况:

牙颜色的树脂基复合材料 (GCRBC) 对于美观的牙修复至关重要.
评估它们的色彩稳定性和转化度 (DC%) 是临床成功的关键.

研究的目的:

评估各种GCRBCs的色彩稳定性和DC%.
为了确定不同浸泡介质 (水,咖啡,红酒) 对GCRBC颜色的影响.

主要方法:

准备了20种GCRBC的阴影,并将其存储在水,咖啡和红酒中30天.
使用光谱辐射计测量颜色稳定性,并通过ATR-FTIR光谱学确定DC%.
统计分析包括ANOVA和Tukey的后期测试.

主要成果:

DC%的差异很大 (43%-96%),可流动复合材料的价值更高.
所有的GCRBC在浸泡后都表现出颜色变化,红酒导致了最显著的变色.
葡萄酒引起的颜色变化超过了可接受性值.

结论:

总体而言,GCRBC的DC%确保了足够的生物相容性和机械性能.
然而,它们容易染色,特别是红酒的染色,这对长期的美学结果构成风险.

关键词:

CIEDE2000 在线观看颜色稳定性颜色稳定性转换的程度转换的程度.牙颜色的值值牙颜色的值基于树脂的复合材料,颜色为牙.

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Indicators

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Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example, phenolphthalein is a colorless substance in any aqueous solution with a hydronium ion concentration greater than 5.0 × 10−9 M (pH < 8.3). In more basic solutions where the hydronium ion concentration is less than 5.0 × 10−9 M (pH > 8.3), it is red or pink. Substances such as phenolphthalein, which can be used to determine the pH of a solution, are...