Department of Prosthodontics, School of Dentistry, University of Belgrade, Rankeova 4, Belgrade, 11000, Serbia.
Department of Restorative Dentistry and Prosthodontics and Houston Center for Biomaterials and Biomimetics, University of Texas School of Dentistry at Houston, 7500 Cambridge Street, Suite 5350, Houston, TX, 77054, USA.
Clin Oral Investig. 2018 Apr;22(3):1601-1607. doi: 10.1007/s00784-017-2260-6. Epub 2017 Oct 25.
The purpose of this study was to evaluate color adjustment potential (CAP) of resin composites.
Two shades of each of eight commercial resin composites and one control shade were evaluated. Visual (color competent observers, controlled conditions) and instrumental color evaluations (spectroradiometer, spectrophotometer) were performed. The data were analyzed by analysis of variance, Fisher's PLSD intervals for comparison of means, and Spearman's rank order correlation.
Instrumental color adjustment potential (CAP-I) ranged from - 0.51 to 0.74, and corresponding Fisher's PLSD intervals were 0.1 and 0.05, respectively (p < 0.0001, power 1.0). Visual color adjustment potential (CAP-V) ranged from 0.10 to 0.78, and corresponding Fisher's PLSD intervals were 0.2 and 0.1, respectively (p < 0.0001, power 1.0). The greatest overall color shifting between test shades in isolation and the same shades surrounded by control shade were recorded for HRi ENA enamel, followed by Clearfil Majesty ES2. The highest visual CAP (blending) was recorded for Herculite Ultra, HRi ENA enamel, and Clearfil Majesty ES2.
Within the limitation of the study, it was found that color adjustment potential (CAP) was composite and shade-dependent. Positive CAP was recorded both instrumentally and visually for majority of composites and shades. Overall, the measured color difference reduction associated with positive CAP was 31%, while the average visual CAP was 43%.
Resin composites with pronounced color adjustment potential interact with surrounding dental restorations. Introduced CAP-V and CAP-I were indirect measurements of blending (optical illusion).
本研究旨在评估树脂复合材料的颜色调整潜力（CAP）。
评估了八种商业树脂复合材料的每种材料的两个色调和一个对照色调。进行了目视（颜色合格观察者，控制条件）和仪器颜色评估（分光光度计，分光光度计）。通过方差分析、均值比较的 Fisher's PLSD 区间和 Spearman 秩相关分析对数据进行了分析。
仪器颜色调整潜力（CAP-I）范围为-0.51 至 0.74，相应的 Fisher's PLSD 区间分别为 0.1 和 0.05（p<0.0001，功效 1.0）。目视颜色调整潜力（CAP-V）范围为 0.10 至 0.78，相应的 Fisher's PLSD 区间分别为 0.2 和 0.1（p<0.0001，功效 1.0）。在隔离的测试色调和同一色调被对照色调包围的情况下，HRi ENA 釉质和 Clearfil Majesty ES2 记录的整体颜色变化最大。Herculite Ultra、HRi ENA 釉质和 Clearfil Majesty ES2 记录的目视 CAP（混合）最高。
在研究的限制范围内，发现颜色调整潜力（CAP）取决于复合材料和色调。大多数复合材料和色调在仪器和视觉上都记录了正 CAP。总体而言，与正 CAP 相关的测量色差减少了 31%，而平均视觉 CAP 为 43%。
具有明显颜色调整潜力的树脂复合材料与周围的牙科修复体相互作用。引入的 CAP-V 和 CAP-I 是混合（视错觉）的间接测量。
