ΔE*ab=[(ΔL*)2+(Δa*)2+(Δb*)2]1/2 Following the scientific approach to tooth color matching, some devices were introduced to color measurement. A colorimeter is a simple, inexpensive instrument to ...

The technology enables the coloring of unshaded zirconia by color-matching dental restorations to the natural color of patients' teeth. Since 3M developed and launched this technology, much of the ...

In vivo studies have shown that chipping of the veneering porcelain is the major failure mode for zirconia dental restorations. 27,28 The TMT during aging could be a contributory factor for chipping.

NanoZirconia (ZrO 2 nanoparticles) has been used as a catalyst in various organic reactions, in photocatalytic and piezoelectric applications, as well as dental and optical coatings. It exists in ...