d.SIGN 91 is an extra hard reduced gold ceramic alloy. Its mechanical and physical properties are coordinated with the IPS d.SIGN fluorapatite metal-ceramic.
Advantages
- Silver and copper free
- Increased hardness
- Wide range of indications
- Excellent resistance to oral conditions
- Certified biocompatibility
- Excellent flow properties
Indications
- Onlays
- Inlays
- Partial crowns
- Single crowns
- Telescope and conus crowns
- Root canal posts
- Short- and long-span bridges
- Implant superstructures
- Model casts
Composition
Au 60.0
Pd 30.6
In 8.4
Ga 1.0
Re < 1.0
Ru < 1.0
Technical data
Type 4
Colour white
Density (g/cm³) 14.3
Melting range (°C) 1175 - 1305
Casting temperature (°C) 1360 - 1420
Modulus of Elasticity (MPa) 108.000
CTE 25 – 500 °C 14.2
CTE 20 – 600 °C 14.4
Elongation (%) 31.0
Vickers hardness 250
0.2% proof stress (MPa) 500