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首页> 外文期刊>The Journal of Prosthetic Dentistry >Effects of shade tab arrangement on the repeatability and accuracy of shade selection.
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Effects of shade tab arrangement on the repeatability and accuracy of shade selection.

机译：阴影标签布置对阴影选择的可重复性和准确性的影响。

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STATEMENT OF PROBLEM: Appropriate and repeatable shade matching using visual shade selection remains a challenge for the restorative dentist. PURPOSE: The purpose of this study was to evaluate the effect of different arrangements of a shade guide on the repeatability and accuracy of visual shade selection by restorative dentists. MATERIAL AND METHODS: Three Vitapan Classical shade guides were used for shade selection. Seven shade tabs from one shade guide were used as target shades for the testing (A1, A4, B2, B3, C2, C4, and D3); the other 2 guides were used for shade selection by the subjects. One shade guide was arranged according to hue and chroma and the second was arranged according to value. Thirteen male and 22 female restorative dentists were asked to match the target shades using shade guide tabs arranged in the 2 different orders. The sessions were performed twice with each guide in a viewing booth. Collected data were analyzed with Fisher's exact test to compare the accuracy and repeatability of the shade selection (alpha=.05). RESULTS: There were no significant differences observed in the accuracy or repeatability of the shade selection results obtained with the 2 different arrangements. When the hue/chroma-ordered shade guide was used, 58% of the shade selections were accurate. This ratio was 57.6% when the value-ordered shade guide was used. The observers repeated 55.5% of the selections accurately with the hue/chroma-ordered shade guide and 54.3% with the value-ordered shade guide. CONCLUSIONS: The accuracy and repeatability of shade selections by restorative dentists were similar when different arrangements (hue/chroma-ordered and value-ordered) of the Vitapan Classical shade guide were used.
机译：问题陈述：使用视觉阴影选择合适和可重复的阴影匹配仍然是修复牙医的挑战。目的：本研究的目的是评估修复性牙医对遮光帘的不同排列方式对视觉遮光选择的可重复性和准确性的影响。材料和方法：三个Vitapan Classical阴影指南用于阴影选择。来自一个阴影指南的七个阴影选项卡用作测试的目标阴影（A1，A4，B2，B3，C2，C4和D3）;其他2个指南用于对象的阴影选择。根据色相和色度安排了一个阴影指南，根据值安排了第二个。要求13位男性和22位女性修复牙科医生使用按2个不同顺序排列的阴影引导片匹配目标阴影。会议在观景台上进行了两次，每位导游都有。使用Fisher精确测试对收集的数据进行分析，以比较阴影选择的准确性和可重复性（alpha = .05）。结果：在用两种不同的布置获得的阴影选择结果的准确性或可重复性方面，没有观察到显着差异。使用色相/色度排序的阴影指南时，58％的阴影选择是准确的。使用按值排序的阴影指南时，此比率为57.6％。观察者使用色相/色度顺序的阴影指南准确地重复了55.5％的选择，使用值顺序的阴影指南准确地重复了54.3％的选择。结论：当使用不同的安排（色调/色度顺序和价格顺序）时，修复牙医选择阴影的准确性和可重复性相似。

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