Comparison of CIELAB ΔE* and CIEDE2000 color-differences after polymerization and thermocycling of resin composites

Significance. Within the limit of this study, the results suggest that two color-difference formulas can be used interchangeably for the evaluation of the color-difference of resin composites after polymerization and thermocycling. However, for the evaluation of changes in separate color parameters such as lightness, chroma and hue, the ΔE00 formula could be considered for the color evaluation of esthetic dental materials after confirming with human observer responses.