Effect of CAD/CAM Position and Thickness of Ultra-Translucent Multilayered Zirconia on Color Aspects

Figure 1

Different milling positions of multilayer zirconia. The specimens were milled at different vertical positions. (a) Position A, the upper edge of the blank; (b) Position B, the center of the blank; and (c) Position C, the lower edge of the blank. By contrast, (d) Position D served as the control group for the CAD/CAM position factor, featuring a horizontal orientation within the dentin layer.