ArticleInternational journal of dentistry2025
A Comparative Analysis of Color Stability in Direct and Indirect Restorative Materials Following Immersion in a Coffee Solution.
Article in International journal of dentistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: This study aims to determine the color stability of direct and indirect restorative materials after immersion in coffee solution. Materials and Methods: A total of 32 blocks (12 mm × 10 mm × 2 mm) were prepared from four tested materials; feldspar ceramic (VITABLOCS Mark II: Vita Zahnfabrik, Germany), hybrid ceramic (Vita Enamic: Vita Zahnfabrik, Germany), indirect composite resin (Gradia Indirect: GC, Japan), and direct composite resin (G-aenial anterior: GC, Japan). The color of all specimens was measured by a spectroradiometer using CIELAB color space before and after thermocycling (5000 cycles) followed by immersion in coffee solution. The color difference ( Results: All materials tested exhibited unacceptable color changes after immersion in the coffee solution. The highest value of color change ( Conclusions: The study demonstrated that there were no statistically significant differences in color change between the various groups following immersion in coffee. Additionally, the color change exceeded the clinically acceptable limit in all samples. It is noteworthy that differences in the initial color values (
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