Comparative evaluation of color stability in polished and glazed CAD/CAM ceramics subjected to coffee thermal cycling: an in vitro study

This in-vitro study showed that coffee immersion negatively impacted the color of all tested CAD-CAM ceramics, although the changes remained within clinically acceptable limits. Surface treatments, including polishing and glazing, had no significant effect on the color stability or translucency of the ceramics. Coffee immersion also did not affect translucency.