Faculty of Dentistry, Department of Restorative Dentistry, Istanbul Medeniyet University, Istanbul, Turkey.
Faculty of Dentistry, Department of Pediatric Dentistry, Istanbul Medeniyet University, Istanbul, Turkey.
BMC Oral Health. 2024 Jul 20;24(1):821. doi: 10.1186/s12903-024-04612-z.
The aim of our study was to measure the color changes in one-shade composite resins when exposed to common drinks, such as tea, cola and coffee.
MATERIALS/METHODS: In our study, Omnichroma, Vitrra APS Unique, GC A'chord and Charisma Diamond One composite resins were used. Composite resins were placed in stainless steel molds with depths of 2 mm and diameters of 5 mm. Ten specimens were immersed in tea, 10 specimens were immersed in coffee, 10 specimens were immersed in cola and 10 specimens were immersed in distilled water in an incubator at 37 °C for 14 days. Color measurements were performed at the beginning of the study and after 24 h and 14 days. Color values were measured using a CIE Lab* system with a spectrophotometer device. Color and translucency changes were calculated and data analyzed using one-way ANOVA, two-way ANOVA, and post-hoc Tukey test (p < 0.05).
The greatest color changes occurred in the tea and coffee groups; the smallest color change occurred in the control group. After 14 days, the greatest color change was observed in the Charisma + Coffee group; the smallest color change was observed in the Omnichroma + Water group. The transparency and contrast ratios changed in all groups, and the smallest change occurred in the Omnichroma control group.
Significant differences were found in the composite color changes after immersion in beverages. The color variations significantly differed depending on the beverage in which the specimens were immersed. The initial contrast ratio was markedly different from the examined materials.
The study emphasizes the significance of common beverages on the color stability of one-shade composite resins, underlining the need of appropriate material selection for long-term aesthetic effects in one-shade composite resin restorations.
本研究旨在测量单色调复合树脂在暴露于常见饮料（如茶、可乐和咖啡）后的颜色变化。
材料/方法：在本研究中，使用了 Omnichroma、Vitrra APS Unique、GC A'chord 和 Charisma Diamond One 复合树脂。将复合树脂放入深度为 2mm、直径为 5mm 的不锈钢模具中。将 10 个样本浸入茶中，10 个样本浸入咖啡中，10 个样本浸入可乐中，10 个样本浸入蒸馏水中，在 37°C 的孵育箱中浸泡 14 天。在研究开始时、24 小时后和 14 天后进行颜色测量。使用分光光度计设备的 CIE Lab*系统测量颜色值。使用单向方差分析、双向方差分析和事后 Tukey 检验（p<0.05）对颜色和半透明度变化进行计算和数据分析。
茶和咖啡组的颜色变化最大；对照组的颜色变化最小。14 天后，Charisma+咖啡组的颜色变化最大；Omnichroma+水组的颜色变化最小。所有组的透明度和对比率都发生了变化，Omnichroma 对照组的变化最小。
在浸泡于饮料后，复合树脂的颜色变化存在显著差异。颜色变化明显取决于浸泡样本的饮料。初始对比率与所检查的材料明显不同。
该研究强调了常见饮料对单色调复合树脂颜色稳定性的重要性，突出了在单色调复合树脂修复中选择合适材料以获得长期美学效果的必要性。
