Cie L*A*B* 在VITA Classical和VITA 3D Master中的值通过两个牙科光谱仪
The International journal of prosthodontics
|November 3, 2023
概括
两台牙科光谱仪显示出高可靠性,但在特定的阴影色调中存在差异,影响了颜色匹配的准确性. 这些设备是有用的,但对于某些L*a*b*组件存在变化.
科学领域:
- 牙科材料科学 牙科材料科学
- 牙科中的色彩科学
- 仪器准确性和可靠性 仪器准确性和可靠性
背景情况:
- 精确的牙色调匹配对于美学修复至关重要.
- 牙阴影指南和光谱仪用于实现精确的色彩再现.
- 阴影匹配设备之间的变化可能会影响临床结果.
研究的目的:
- 为了比较两个牙阴影指南的CIE L*a*b*值,使用两个阴影匹配光谱仪.
- 评估SpectroShade Micro (SS) 和Easyshade (ES) 的设备间可靠性和准确性.
主要方法:
- 使用SpectroShade Micro (SS) 和Easyshade (ES) 光谱仪测量VITA Classical (VC) 和VITA 3D Shade Master (VM) 指南中的阴影标签.
- 经过校准的操作员在三个批次中进行了30次测量,每个阴影标签都进行了30次测量.
- 计算和分析了颜色差异 (ΔE00) 和类内系数 (ICC).
主要成果:
- 对于大多数L*a*b*值,两种设备之间发现了统计学上显著的差异.
- 设备之间的颜色差异 (ΔE00) 超过了大多数阴影选项卡的可接受性值 (≥1.8).
- 总体平均设备间 ΔE00 为 VC 的 2.2 ± 1.0 和 VM 的 2.5 ± 1.0 .
结论:
- 这两种牙科光谱仪都显示出高的类内相关系数 (ICC) 和接收器操作特征 (ROC) 值,证实了它们作为辅助工具的实用性.
- 在设备之间观察到L*a*b*值的差异,特别是在特定的色调 (VC中的D,VM中的R).
- 设备间的变化需要在选择阴影时仔细考虑,以获得可预测的美学效果.
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