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