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The multi-layered KATANA™ Zirconia Block consists of four layers zirconia in graduated shades allowing the chairside fabrication of natural-tooth colored restorations. Eliminating a time-consuming and complex situation of staining the restoration.
KATANA™ Zirconia Block, the innovative multi-layered zirconia block*1, can be used with Dentsply Sirona's CEREC system*2. Now the 18 minutes sintering program*3 is developed and installed into CEREC SpeedFire. New sintering technology makes it possible to fabricate full zirconia restoration in approx. 35 minutes.
*1 CL shade is not a multi layered block.*2 For using this product, CEREC software 4.5.2 or later is required, and for 18 minutes sintering, software 4.6 or later is required.*3 In case that wall thickness is less than 3mm using dry milling.*4 Dry milling is recommended. If wet milling/grinding is performed by using cooling water contaminated by silica-based glass ceramics (lithium disilicate glass, etc.), the translucency of the zirconia may be reduced after baking. Before wet milling/grinding, clean the milling/grinding chamber, cooling water tank and filter insert. The cooling water must be changed in order to assure optimum results.
KATANA™ Zirconia Block delivers better mechanical properties than lithium disilicate glass ceramics.As a result restorations are thinner and more translucent for a more natural-looking, result.
Zirconia is a non-silica-based ceramic which will not respond to a traditional pretreatment method such as, hydrofluoric acid-etching of the internal surface. Micro-mechanical retention achieved through sandblasting and chemical bonding through adhesion (ex. MDP) are key factors for successful zirconia bonding.
PANAVIA™ V5 and PANAVIA™ SA Cement Universal, which both include the MDP adhesive monomer, have high bond strength and durability to zirconia.
