Development of a whiteness index for dentistry
Development of a whiteness index for dentistry
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DOI：
10.1016/j.jdent.2009.05.011
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发表时间：
2009-01-01
影响因子：
4.4
通讯作者：
Cheung, Vien
中科院分区：
文献类型：
--
作者：
Luo, Wen;Westland, Stephen;Cheung, Vien
目的：建立一种新的与牙齿白度知觉相关的白度指数。方法：由观察者小组在标准观察条件和典型临床观察条件下进行心理物理实验。对现有的各种白度和黄度指数进行了比较，以衡量它们衡量人类牙齿感知白度的能力。结果：通过对原有的CIE白度公式(WIC)进行优化，建立了一个新的白度公式(WIO)，并根据实验结果发现WIO对牙齿白度的预测效果最好。88名NHS患者在典型的临床观察条件下重复相同的视觉实验。结论：结果证实了新的白度公式适用于牙齿白度的预测。(C)2009爱思唯尔有限公司。保留所有权利。
Objectives: The aim of the study was to develop a new whiteness index which correlates to perception of tooth whiteness.Methods: Psychophysical experiments were conducted by a panel of observers under a standard viewing condition as well as under typical clinical viewing conditions. Various existing whiteness and yellowness indices were compared with regard to their ability to measure the perceived whiteness of human teeth. The Pearson coefficient of determination and '% wrong decision' method were used to determine the best index for tooth whiteness measurement.Results: A new whiteness formula (WIO) was developed by optimising the original CIE whiteness formula (WIC) and it was found that WIO gave the best performance for predicting tooth whiteness based on the laboratory results. A total of 88 NHS patients repeated the same visual experiments under typical clinical viewing conditions.Conclusion: The results confirmed the finding that the new whiteness formula is appropriate for the prediction of tooth whiteness. (C) 2009 Elsevier Ltd. All rights reserved.