ST Ultra-Translucent Zirconia Block , 1200MPa Strength , 43% Light Transmission for Dental Crowns & Bridges
The ST Zirconia Block sets the industry standard with exceptional 1200MPa flexural strength – 50% above ISO 6872 Class 5 requirements. Engineered for both anterior and posterior restorations, its 43% translucency balances aesthetics and durability. Cold isostatic pressed at 300MPa, each white block (98/95/92×75mm) maintains uniform density (3.15±0.05 g/cm³) for precision milling. Compatible with 16/26 shade liquids plus specialized incisal and dilution solutions.
Breakthrough Properties
• Mechanical Superiority: 6.5 MPa·m¹ᐟ² fracture toughness resists chipping
• Aging Stability: <15% monoclinic phase after accelerated aging
• Thermal Consistency: CTE (10.5±0.5)×10⁻⁶/K matches natural dentition
• Safety Certified: 0 cytotoxicity, <0.1 Bq/g radioactivity
Technical Specifications
Parameter | Value |
---|---|
Sintered Density | 6.09±0.01 g/cm³ |
Hardness (HV10) | 1350 |
Chemical Solubility | <100 μg/cm² |
Recommended Sinter Temp | 1500°C |