March 5, 2021
KATANA Zirconia Block (Fig. 1) has hardly any features in common with the zirconia that was so popular in dental laboratories two decades ago and was used as a framework material. In many cases, this innovative zirconia serves as a functionally and aesthetically sensible alternative to high-strength glass-ceramics. Its flexural strength is higher than that of lithium disilicate, its translucency on a level with the low-translucency variant of the ceramic and its surface—if smoothly polished—antagonist-friendly, causing low wear.