三种市售颜色测量设备个体重复性的临床评估。

A clinical evaluation of the individual repeatability of three commercially available colour measuring devices.

作者信息

Khurana R, Tredwin C J, Weisbloom M, Moles D R

机构信息

Unit of Conservative Dentistry, UCL Eastman Dental Institute, 256 Gray's Inn Road, London, WC1X 8LD.

出版信息

Br Dent J. 2007 Dec 22;203(12):675-80. doi: 10.1038/bdj.2007.1108.

DOI:10.1038/bdj.2007.1108

PMID:18084212

Abstract

OBJECTIVE

The objective of this study was to undertake a clinical evaluation of the individual repeatability of three colour measuring devices.

DESIGN

Clinical study. Setting Eastman Dental Hospital.

METHODS

Under standardised clinical conditions, one trained operator using three colour measuring devices (Vita Easyshade, X-Rite ShadeVision and Spectroshade Micro) recorded three shade measurements (cervical, body and incisal) for each of the upper maxillary anterior teeth in 20 participants. This sequence of measurements was repeated for each of the shade machines. The output recorded from each sequence included Vita classic shades and CIE Lab co-ordinates. Ethical approval was obtained from the joint University College London and University College London Hospitals.

RESULTS

Spectroshade Micro had good agreement Cohen Kappa score (0.80) for repeatability of Vita shades and also had 82.7% proportion of complete agreement for Vita shades. The proportion of complete agreement for Vita shades for the Easyshade and X-Rite ShadeVision machine were 50% and 59% respectively. For CIE Lab co-ordinates the Spectroshade Micro provided the narrowest range of 'Bland and Altman' agreement limits for all the co-ordinates recorded.

CONCLUSION

The Spectroshade Micro machine provided the most repeatable measurements. Narrower limits of agreement indicate greater consistency compared to Easyshade and X-Rite ShadeVision.

摘要

目的

本研究的目的是对三种颜色测量设备的个体重复性进行临床评估。

设计

临床研究。地点：伊斯特曼牙科医院。

方法

在标准化临床条件下，一名经过培训的操作人员使用三种颜色测量设备（维他 Easyshade、爱色丽 ShadeVision 和 Spectroshade Micro），对 20 名参与者上颌前牙的每一颗记录三次颜色测量值（颈部、牙体和切端）。对每台颜色测量设备都重复此测量顺序。每个测量顺序记录的输出结果包括维他经典色号和 CIE Lab 坐标。获得了伦敦大学学院和伦敦大学学院医院联合伦理委员会的批准。

结果

Spectroshade Micro 在维他色号重复性方面具有良好的一致性（Cohen Kappa 评分 0.80），维他色号完全一致的比例也达到 82.7%。Easyshade 和爱色丽 ShadeVision 设备的维他色号完全一致的比例分别为 50%和 59%。对于 CIE Lab 坐标，Spectroshade Micro 为所有记录的坐标提供了最窄的“布兰德 - 奥特曼”一致性界限范围。