![]() ![]() Learning color mixing is difficult for novice painters. Scattering coefcients of stains in diferent colors varied. Yellow, orange, and blue GC stains were more color stable compared with IPS. Tested stains on CAD-CAM ceramic had varying color changes after aging. Absorption and scatter�ing coefcients of diferent stains on CAD-CAM ceramic were diferent from those of A2 shade tab except for brown stain ![]() The highest color diference was with orange stain of IPS (p<0.001). Color changes with IPS stains were higher than those with ![]() ![]() Interaction was found between stain color and brand (p<0.001). Used to analyze the ΔE00 values and Tamhane T2 was used to analyze the K and S coefcients (alpha=0.05). Kubelka–MunkĪbsorption (K) and scattering coefcients (S) of stains were compared with those of A2 shade tab. Color coordinates before and after aging were measured to calculate color diferences (ΔE00). Specimens were divided into two groups (n=10) to be stained with six diferent stains (yellow, orange, blue, gray, violet,Īnd brown) from two manufacturers (GC initial spectrum (GC) and IPS e.max Ceram (IPS)). Specimens (15×8×1.5 mm) were fabricated from A2-shade ceramic blocks (Mark II Vita Zahnfabrik) (N=120). The aim of this study was to investigate the efect of stain brand and color on color stability of stains on a CAD-CAM ceramicĪfter aging. ![]()
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