Department of Prosthodontics, Division of Fixed Prosthodontics School of Dentistry, Iwate Medical University, 1-3-27, Chyuodori, Morioka 020-8505, Japan.
J Prosthodont Res. 2011 Oct;55(4):199-205. doi: 10.1016/j.jpor.2010.12.005. Epub 2011 Feb 5.
To evaluate the clinical performance of the Crystaleye Spectrophotometer(®), a dental color analysis system.
Three color-measuring devices (Crystaleye Spectrophotometer(®), CAS-ID1, MSC-2000) were tested and the differences in color measurements among them were evaluated using Scheffe's F-test. Color measurements with the Crystaleye Spectrophotometer(®) were repeated 10 times by the same operator. The color difference (ΔE) between the first and tenth measurements was calculated. The Crystaleye Spectrophotometer(®) was used to measure the color of the maxillary left central incisor under two conditions (light and dark) and the effect of exterior lighting was analyzed to assess the accuracy of measurements. Furthermore, five different operators performed color measurements, and ΔE among the three devices was calculated. The ΔE between the target tooth and the crown of a single maxillary central incisor crown fabricated using data from the Crystaleye Spectrophotmeter(®) was calculated. Color differences between prebleaching and postbleaching were also analyzed with the Crystaleye Spectrophotometer(®) using the parameters ΔE, ΔL*, Δa*, and Δb*.
The data from the three spectrophotometers were not significantly different. The ΔE during repeated color measurements by the same operator was 0.6. The ΔE between light and dark conditions was 0.9. The data from the five operators were not significantly different. The mean ΔE value between the target tooth and the fabricated crown was 1.2 ± 0.4, and the mean ΔE value between prebleaching and postbleaching was 3.7 ± 1.0.
The Crystaleye Spectrophotometer(®) is an easy-to-use color analysis system producing accurate color measurements under clinical conditions.
评估 Crystaleye Spectrophotometer(®)，一种牙科颜色分析系统的临床性能。
测试了三种颜色测量设备（Crystaleye Spectrophotometer(®)、CAS-ID1、MSC-2000），并使用谢弗 F 检验评估它们之间的颜色测量差异。同一位操作员重复进行 10 次 Crystaleye Spectrophotometer(®)的颜色测量。计算第一次和第十次测量之间的颜色差异（ΔE）。使用 Crystaleye Spectrophotometer(®)在两种条件（明和暗）下测量上颌左中切牙的颜色，并分析外部照明的影响，以评估测量的准确性。此外，由五名不同的操作员进行颜色测量，并计算三个设备之间的 ΔE。计算使用 Crystaleye Spectrophotometer(®) 数据制作的单个上颌中切牙牙冠的目标牙与牙冠之间的 ΔE。使用 Crystaleye Spectrophotometer(®) 还分析了漂白前后的颜色差异，使用 ΔE、ΔL*、Δa和 Δb参数。
三个分光光度计的数据没有显著差异。同一位操作员重复颜色测量的 ΔE 为 0.6。明和暗条件之间的 ΔE 为 0.9。五位操作员的数据没有显著差异。目标牙与制作牙冠之间的平均 ΔE 值为 1.2±0.4，漂白前后的平均 ΔE 值为 3.7±1.0。
Crystaleye Spectrophotometer(®) 是一种易于使用的颜色分析系统，在临床条件下可产生准确的颜色测量值。
