School of Dentistry, Department of Prosthodontics, Usak University, Usak, Turkey.
Aust Dent J. 2021 Dec;66(4):406-412. doi: 10.1111/adj.12866. Epub 2021 Jul 16.
To investigate colour agreement between different shades of Panavia V5 resin cement and their try-in pastes under zirconia-reinforced lithium silicate ceramics.
Forty-four zirconia-reinforced lithium silicate ceramic specimens were prepared at 0.8 ± 0.01 mm thickness. Composite resin tooth-shaded background specimens were obtained in two shades. Resin cement specimens were fabricated at 0.1-mm thickness. Colour difference values (ΔE) between Aquagel and both the try-in paste and resin cement were calculated using the CIE-Lab system. The CIEDE2000 (ΔE00) colour formula was used to determine colour differences. The three-way ANOVA test and a multiple comparisons test were used for statistical analysis (α = 0.05).
A statistically significant difference was found between the ΔE00 values obtained from the cement shade colour measurements for all specimens (P < 0.05). According to the three-way ANOVA test, lower ΔE00 values were observed in the try-in paste group compared to the resin cement group. The ΔE00 values were significantly affected by the cement shade and tooth-shaded background (P < 0.05).
The colour agreement between the try-in pastes and the corresponding resin cement differed, and the try-in pastes could not mask the dark dental background as much as the corresponding resin cement.
研究不同 Panavia V5 树脂水门汀色调与其试戴糊剂在氧化锆增强锂硅陶瓷上的颜色匹配性。
制备 44 个厚度为 0.8±0.01mm 的氧化锆增强锂硅陶瓷试件。获得两种牙色背景复合树脂试件。以 0.1mm 厚度制作树脂水门汀试件。采用 CIE-Lab 系统计算 Aquagel 与试戴糊剂和树脂水门汀之间的色差值（ΔE）。采用 CIEDE2000（ΔE00）色差公式来确定颜色差异。采用三因素方差分析和多重比较检验进行统计学分析（α=0.05）。
所有试件的水泥色调测量的 ΔE00 值之间存在统计学显著差异（P<0.05）。根据三因素方差分析，试戴糊剂组的 ΔE00 值低于树脂水门汀组。ΔE00 值受水泥色调和牙色背景显著影响（P<0.05）。
试戴糊剂与相应的树脂水门汀之间的颜色匹配性存在差异，试戴糊剂不能像相应的树脂水门汀那样很好地掩盖深色的牙齿背景。
