Department of Restorative Dentistry and Prosthodontics and Houston Center for Biomaterials and Biomimetics (HCBB), University of Texas School of Dentistry at Houston, Houston, Texas.
Dental Consultants, Inc., Ann Arbor, Michigan.
J Esthet Restor Dent. 2019 Sep;31(5):465-470. doi: 10.1111/jerd.12488. Epub 2019 May 16.
To evaluate the instrumental and visual color adjustment potential (CAP-I, CAP-V), of resin composites.
Resin composites tested were Omnichroma, Filtek Supreme Ultra, TPH Spectra, Herculite Ultra, and Tetric EvoCeram. Two types of specimens, "dual" and "single" were evaluated. For dual specimens, class I preparations (4 mm-diameter, 2 mm-depth), were created in denture teeth and restored with test resin composites. For single specimens, replications of denture teeth were created using the test resin composites (n = 5) and compared with unrestored denture teeth. Reflectance values were obtained using a spectroradiometer. CAP-I and CAP-V were calculated. Fisher PLSD intervals for comparison of means were calculated at the 0.05 level of significance.
CAP-I ranged between 0.02 and 0.67. The Fisher PLSD interval for comparisons between single/dual color differences was 0.09 (P < .0001, power 1.0) and for comparisons between materials and shades 0.18 and 0.33, respectively (P < .0001, power 1.0). CAP-V ranged between 0.16 and 0.60. The Fisher PLSD interval for comparisons between single/dual visual color differences was 0.05 (P < .0001, power 1.0) and 0.08 and 0.14 for comparisons between materials and shades, respectively (P < .0001, except Herculite Ultra-Tetric EvoCeram and certain shade pairs).
Instrumental color differences and visual rating of single specimens were the greatest for Omnichroma, indicating the largest mismatch, while the instrumental and visual color differences of dual specimens were the smallest. Omnichroma had the most pronounced CAP-I followed by Tetric EvoCeram>TPH Spectra = Filtek Supreme Ultra >Herculite Ultra. Similarly, Omnichroma exhibited the most pronounced CAP-V followed by Tetric EvoCeram>TPH Spectra = Herculite Ultra = Filtek Supreme Ultra.
Resin composites with pronounced CAP blends with surrounding enamel and dentin, resulting in reduced color differences and therefore improving the esthetic appearance of the restoration, simplifying the shade matching and compensating for any color mismatch.
评估树脂复合材料的仪器和视觉色彩调整潜力（CAP-I、CAP-V）。
测试的树脂复合材料有 Omnichroma、Filtek Supreme Ultra、TPH Spectra、Herculite Ultra 和 Tetric EvoCeram。评估了两种类型的样本，“双”和“单”。对于双样本，在假牙牙齿上制备了 I 类制备体（4 毫米直径，2 毫米深度），并用测试的树脂复合材料进行修复。对于单样本，使用测试的树脂复合材料复制了假牙牙齿（n=5），并与未修复的假牙牙齿进行了比较。使用分光光度计获得反射率值。计算了 CAP-I 和 CAP-V。在 0.05 的显著水平上计算了用于比较平均值的 Fisher PLSD 间隔。
CAP-I 范围在 0.02 到 0.67 之间。单/双颜色差异比较的 Fisher PLSD 间隔为 0.09（P<.0001，功率 1.0），材料和色调之间的比较分别为 0.18 和 0.33（P<.0001，功率 1.0）。CAP-V 范围在 0.16 到 0.60 之间。单/双视觉颜色差异比较的 Fisher PLSD 间隔为 0.05（P<.0001，功率 1.0），材料和色调之间的比较分别为 0.08 和 0.14（P<.0001，除了 Herculite Ultra-Tetric EvoCeram 和某些色调对）。
仪器颜色差异和单样本的视觉评估对 Omnichroma 最大，表明不匹配最大，而双样本的仪器和视觉颜色差异最小。Omnichroma 具有最大的 CAP-I，其次是 Tetric EvoCeram>TPH Spectra=Filtek Supreme Ultra>Herculite Ultra。同样，Omnichroma 表现出最明显的 CAP-V，其次是 Tetric EvoCeram>TPH Spectra=Herculite Ultra=Filtek Supreme Ultra。
具有明显 CAP 的树脂复合材料与周围牙釉质和牙本质混合，从而减少颜色差异，从而改善修复体的美观外观，简化色调匹配并补偿任何颜色不匹配。
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