Katana ZR UTML 18 mm

Description

Kuraray Noritake KATANA Zirconia UTML is a pre-shaded, ultra-translucent multilayer zirconia for the fabrication of lifelike all-ceramic restorations. The material is specifically designed for aesthetically demanding cases where natural light transmission and a smooth shade transition are important.

Product facts

• Type: Pre-shaded ultra-translucent multilayer zirconia
• Material: Yttria-stabilised zirconium oxide
• Layer structure: Four integrated shade layers
• Layer distribution: 35% enamel, two 15% transition layers and 35% body
• Translucency: Approximately 51% throughout the disc
• Flexural strength: Approximately 557 MPa throughout the disc
• Shade effect: Gradual transition from the body to the enamel region
• Indications: Veneers, inlays, onlays and crowns
• Bridge indication: Anterior 2- and 3-unit bridges extending to the premolar region
• Size: 98.5 × 18 mm
• Sintering: Standard or speed sintering for approved restorations

Benefits

The high translucency provides natural light transmission and helps the restoration interact optically with the underlying tooth structure. The integrated shade layers create a natural transition without requiring complete manual colouring of the restoration and may reduce the need for extensive finishing.

Shade and aesthetics

The disc consists of four shade layers: an enamel layer, two transition layers and a body layer. Shade intensity changes gradually through the material, while translucency and flexural strength remain uniform in all layers. The vertical position of the restoration within the disc affects how the shade gradient appears in the completed restoration.

Applications

Particularly suitable for thin veneers, inlays, onlays and anterior single crowns where high aesthetics are prioritised. The material can also be used for posterior single crowns and anterior 2- and 3-unit bridges extending to the premolar region, provided that the applicable minimum wall thickness and connector requirements are observed.

Processing

The material is supplied in a pre-sintered state and is milled in a compatible dental CAD/CAM system. After sintering, the restoration can be polished or individually characterised by staining, glazing and ultra-thin micro-layering with compatible CERABIEN ZR materials. Speed sintering of approximately 54 minutes may be used for approved single restorations and bridges of up to three units.