Department of Crown and Bridge, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, Japan.
Department of Dental Materials Science, School of Life Dentistry at Tokyo, The Nippon Dental University, 1-9-20 Fujimi, Chiyoda-ku, Tokyo, Japan.
J Prosthodont Res. 2021 Oct 15;65(4):515-520. doi: 10.2186/jpr.JPR_D_20_00306. Epub 2021 Apr 9.
Purpose The purpose of this study was to evaluate the long-term color stability of light-polymerized resin luting agents stored in different beverages.Methods Eleven shades of two light-polymerized resin luting agents, Choice2 (A1, A2, B1, TRANSLUCENT, MILKY OPAQUE, and MILKY BRIGHT) and BeautiCem Veneer (H-Value, M-Value, L-Value, Ivory-D, Ivory-L) were selected in this study. Disk-shaped specimens were fabricated with 1.3 mm thickness and 15.0 mm diameter. A total of 198 specimens, 18 for each shade, were prepared and randomly divided into six storage conditions (purified water, coffee, cola, tea, red wine, and air). All shades of specimens were three times measured at three random locations (n = 9) at 24 h storage in air after specimen preparation and then measured after immersion at 1, 3, 6, 9, and 12 mos. using a colorimeter. Then, the color difference (ΔE) between the specimens at 24 h after preparation and after storage in each liquid for 12 mos. was calculated. Statistical analysis was performed using Steele-Dwass multiple comparison test of the ΔE values or one-way ANOVA and Tukey's honest significant difference test.Results For all immersion conditions, ΔE was significantly higher than air (control). The ΔE of the shades in the various storage conditions showed no significant difference between Purified Water-Cola and Coffee-Tea. Comparisons of the color components L*, a*, and b* for each shade showed different behaviors among the shades.Conclusions The results suggest that the color stability of light-polymerized resin luting agents may differ between different shades and beverages.
目的 本研究旨在评估两种不同的可见光固化树脂水门汀在不同饮料中的长期颜色稳定性。
方法 本研究选择了两种可见光固化树脂水门汀（Choice2：A1、A2、B1、TRANSLUCENT、MILKY OPAQUE 和 MILKY BRIGHT）和 BeautiCem Veneer（H-值、M-值、L-值、象牙 D、象牙 L）共 11 个色调的产品。制备厚度为 1.3mm、直径为 15.0mm 的圆盘状试件，每个色调制备 18 个试件，共 198 个试件。将所有试件随机分为 6 个储存条件（纯净水、咖啡、可乐、茶、红酒和空气）。所有试件在制备后，于空气中储存 24h 时，在三个随机位置（n = 9）进行三次测量，然后在 1、3、6、9 和 12 个月时浸入每种液体中进行测量。使用色差仪测量。然后，计算试件在制备后 24h 与在每种液体中储存 12 个月之间的颜色差异（ΔE）。采用 Steele-Dwass 多重比较检验或单因素方差分析和 Tukey 诚实显著差异检验对 ΔE 值进行统计学分析。
结果 所有浸泡条件下，ΔE 均显著高于空气（对照组）。在各种储存条件下，不同色调的 ΔE 在纯净水-可乐和咖啡-茶之间无显著差异。各色调的 L*、a* 和 b* 颜色分量的比较显示，不同色调之间的行为不同。
结论 结果表明，不同色调和饮料的可见光固化树脂水门汀的颜色稳定性可能不同。
