Zirconium dioxide dental material VITA YZ ST

zirconiaZrO2for dental restorations

Overview
The VITA YZ ST Color and VITA YZ ST Multicolor zirconium dioxide blanks are high‑translucency dental ZrO2 materials designed for monolithic and veneered restorations. They reproduce original VITA tooth shades and provide consistent mechanical properties across layers.

Features

• Multicolor option with original VITA tooth shades; Color option with 16 classical A–D shades
• 4‑layer Multicolor with continuous layer transition and pigmented incisal edge
• High‑translucency mono type with uniform high flexural strength across layers
• Includes bleach shade OM1 for Multicolor
• Suitable for monolithic restorations, microveneering and full or partial veneers
• Applicable for bridge frameworks up to 14 units (max. 2 pontics) and implant‑supported restorations

Indications

• Fully anatomical crowns and bridges up to 14 units with up to two pontics
• Crowns and bridge frames for partially or fully veneered solutions (up to 14 units, max. 2 pontics)
• Dentin‑core crowns and bridges according to Josef Schwaiger (Patent: EP2363094B1 / DE102010002484B4)
• CADAbut Duo (two‑piece abutments) and monolithic abutment crowns
• Telescopic primary crowns

Product details - Chemical composition

• Zirconium dioxide (ZrO2): 88–93 %
• Hafnium oxide (HfO2): 1–3 %
• Yttrium oxide (Y2O3): 6–8 %
• Other oxides and pigments: 0–1 %

Product details - Technical specifications

• 3‑point bending strength: 1,200 MPa
• Coefficient of thermal expansion: 10.3 · 10^-6 K^-1
• Translucency: 46 %
• Sinter density: 6.05 g/cm3
• Hardness: 13 HV1
• E‑modulus: 210 GPa
• Indicated for monolithic restorations, microveneering, veneers, crowns and bridges up to 14 units (max. 2 pontics)