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评估牙颜色的不同方法-在体外研究研究

Susana Dias¹, Joana Dias¹, Ruben Pereira¹

¹Oral Biology and Biochemistry Research Group, Faculdade de Medicina Dentária, Universidade de Lisboa, 1950-044 Lisboa, Portugal.

Biomimetics (Basel, Switzerland)

|September 27, 2023

概括

数字色彩评估方法在设备内显示出良好的一致性,但它们之间存在显著差异. 临床医生在使用VITA Classical和VITA Toothguide 3D-MASTER指南的SpectroShade和eLAB时应该意识到这种变化.

科学领域:

牙科材料科学牙科材料科学
测色仪的颜色测量方法
数字成像技术的数字成像.

背景情况:

精确的牙阴影匹配对于美学修复至关重要.
数字色彩评估工具提供了提高准确性的潜力,但可能会表现出变化.
了解设备内部和设备间的变化对于临床应用至关重要.

研究的目的:

为了比较VITA Classical (VC) 和VITA Toothguide 3D-MASTER (VM) 牙阴影指南的L*a*b*值.
使用SpectroShade (SS) 和eLAB数字方法评估颜色差异.
评估这些数字色彩评估工具的设备内部和设备间的可靠性.

主要方法:

一个操作员在三个批次的VC和VM指南中对每个阴影选项卡进行了34次测量.
计算了类内相关系数 (ICC),以评估批次之间的可靠性.
使用独立的t测试 (α = 0.05) 分析了L*a*b*值和颜色差异 (ΔE00).

主要成果:

在所有L*a*b*组件的批次之间发现了优异的ICC值,除了eLAB中的"a*"组件.
对于大多数L*a*b*值,观察到SS和eLAB方法之间的统计学上显著差异.
设备内部的平均 ΔE00 值很低 (0.5-1.1),表明内部的一致性很好.
设备间的平均 ΔE00 值很高 (4.9-5.0),表明方法之间存在显著的变化.

结论:

无论是SpectroShade还是eLAB,都在设备内部表现出良好的内部一致性和可靠性.
在SpectroShade和eLAB方法之间存在显著的变化,特别是对于"a*"组件.
临床医生在使用这些数字工具进行阴影选择时,必须考虑可能存在与方法相关的颜色差异.

关键词:

斯佩克托影子的影子电子标签 (eLAB) 是一个电子标签.摄影摄影摄影摄影摄影摄影摄影摄影摄影摄影在光谱光度测试中,光谱光度测量.牙的颜色牙的颜色

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