Evaluation of color stability after the coloring process in bulk-fill composites
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Composite, bulk-fill, color change, staining, CIEDE2000, flowable composite
Abstract
Aim: Bulk-fill composites have been developed to overcome the disadvantages encountered in the incremental technique, such as the risk of contamination between layers, bonding problems, and gaps. Bulk-fill composites are frequently used in dentistry. The aim of this study was to evaluate the color stability of three different bulk-fill composites after a staining period with tea, coffee, red wine, and distilled water.
Methodology: Three different flowable bulk-fill composites were used in the study (3M Filtek One, Dentsply Sirona SDR, Tokuyama Estellite Bulk-fill Flow). Composite disks with a diameter of 13 mm and a thickness of 1.5 mm were prepared for each subgroup using polytetrafluoroethylene molds. After polymerization, both surfaces of the samples were polished. The samples were incubated in distilled water at 37°C for 24 hours. Initial color measurements were taken using a spectrophotometer. The samples were then immersed in the coloring solutions for 72 hours. Color measurements were taken again, and ΔE00 values were calculated using the CIEDE2000 formula. The data were statistically analyzed using three-way variance analysis (ANOVA) and Tukey HSD multiple comparison tests.
Results: A significant difference in ΔE00 values was observed between the three groups. The values in the SDR group were significantly higher than those of the 3M and Tokuyama groups. In the black tea group, the values were significantly lower than those of the red wine and coffee groups but significantly higher than those of the control group (p<0.05). In the red wine group, the values were significantly lower than those of the coffee group but significantly higher than in the control group (p<0.05). The values in the coffee group were significantly higher than those of the control group.
Conclusion: Coloring solutions have an effect on the color stability of bulk-fill composites. Further studies and research should be done to improve bulk-fill composites.
How to cite this article:
Alkurt S, Gönder HY, Fidancıoğlu YD, Göktolga EG. Evaluation of color stability after the coloring process in bulk-fill composites. Int Dent Res. 2024;14(S1):50-54. https://doi.org/10.5577/indentres.560
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This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.