Effect of White Light-Emitting Diode Illuminants Recommended by the CIE on Colors of Dental Ceramic Materials

The aim of this study was to evaluate color inconstancy dental ceramics under the white light-emitting diode illuminants recently proposed by CIE. From spectral reflectance factors 18 (VST, NSP, and IEC; shades A1, A2, A3, A3.5, B2, C2), corresponding colors illuminant D65 CIE 1931 Standard Colorimetric Observer were computed for all samples, using chromatic adaptation transform CIECAT16. CIEDE2000 differences between illuminated standard different LED calculated. Perceptibility acceptability thresholds (PT00 AP00) in used analyze changes. Color gamut size within same range ceramics, since MCDM values 4.1–4.4 VST, 4.0–4.2 4.3–4.6 IEC. For shades, inconstancies higher than 50:50% PT00 and, general, lower AT00. effect CIE-proposed on ceramic is perceptible slightly natural teeth. Dental clinicians should consider these lighting effects visual appearance ceramics.