Islam Md Sofiqul, Huda Noorul, Mahendran Sankavi, Aryal Ac Smriti, Nassar Mohannad, Rahman Mohammed Mustahsen
Department of Operative Dentistry, RAK College of Dental Sciences, RAK Medical and Health Sciences University, Ras Al-Khaimah, United Arab Emirates.
Department of Clinical Dentistry, RAK College of Dental Sciences, RAK Medical and Health Sciences University, Ras Al-Khaimah, United Arab Emirates.
Eur J Dent. 2023 May;17(2):342-348. doi: 10.1055/s-0042-1744369. Epub 2022 Jun 21.
Single-shade composite systems are gaining popularity among clinicians due to the claimed potential of blending with different tooth structure shades while restoring the tooth. The purpose of this study was to evaluate the blending effect of two single-shade composite with different shades of conventional resin composite systems.
Seventy-two composite cylinders of B1, B2, A1, A2, A3, or A3.5 shade from CharmFil Plus (CP) and Filtek Universal Restorative (3M) were prepared using custom-made silicone mold. Single-shade composite OMNICHROMA (OC) or Beautifil II Enamel (BE) was placed in the center of each cylinder and polymerized. The color parameters, lightness (L*), chroma (C*), and hue (H*) of each composite were measured using a color chronometer. Furthermore, color stability of the samples was evaluated after 1-week staining challenge.
Multivariant analysis was performed to evaluate the effect of material and shade on the color parameters. Multiple comparisons of the data were performed using post hoc test. The staining challenge data were analyzed using repeated measure analysis of variance and paired sample -test.
The multivariant analysis showed a statistically significant difference in color parameters among CP, 3M, OC, and BE ( = 0.001). Image analysis showed a visual blending effect for both OC and BE for certain shades; however, some color contrast with the darker shades was observed. The C* value of OC showed a similar pattern to CP; however, the H* of the latter was closely followed by BE. The L* value showed statistically significant difference among the shades of 3M, and in OC and BE when blended with 3M.
All four materials used in this study showed color alteration after the staining challenge. Single-shade composite can blend with only certain shades of resin composites.
单色调复合树脂系统因宣称在修复牙齿时具有与不同牙齿结构色调相融合的潜力，而在临床医生中越来越受欢迎。本研究的目的是评估两种不同色调的单色调复合树脂与传统树脂复合系统的融合效果。
使用定制的硅胶模具制备了来自CharmFil Plus（CP）和Filtek Universal Restorative（3M）的72个B1、B2、A1、A2、A3或A3.5色调的复合树脂圆柱体。将单色调复合树脂OMNICHROMA（OC）或Beautifil II Enamel（BE）放置在每个圆柱体的中心并进行聚合。使用色差仪测量每个复合材料的颜色参数，明度（L*）、彩度（C*）和色调（H*）。此外，在进行1周的染色挑战后评估样品的颜色稳定性。
进行多变量分析以评估材料和色调对颜色参数的影响。使用事后检验对数据进行多重比较。使用重复测量方差分析和配对样本检验分析染色挑战数据。
多变量分析显示CP、3M、OC和BE之间的颜色参数存在统计学上的显著差异（P = 0.001）。图像分析显示，对于某些色调，OC和BE都有视觉上的融合效果；然而，观察到与较深色调存在一些颜色对比。OC的C值显示出与CP相似的模式；然而，后者的H紧随BE之后。L*值在3M的不同色调之间以及与3M混合时的OC和BE中显示出统计学上的显著差异。
本研究中使用的所有四种材料在染色挑战后均出现颜色变化。单色调复合树脂只能与某些色调的树脂复合材料相融合。
