Katana STML is the first of the available chairside multi-gradient aesthetic zirconia options for chairside CEREC milling. The sintering time in the Sirona SpeedFire furnace is in the 18:00-minute range. This is an incredible fact!  A significant advantage for a multi zirconia application is that the aesthetic gradient is already in the pre-milled block. All we do is choose the matching color shade, mill, and polish after sintering.  This video will demonstrate the effective finishing steps for Katana STML using the Klim Institute Meisinger Zirconia Lab Kit JK04.