d.SIGN 91

Au (60.0%)-based dental metal-ceramic alloy, Type 5
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d.SIGN 91 is an extra hard, reduced-gold ceramic alloy, suitable for use with conventional metal-ceramics. The mechanical properties make it suitable for a wide range of indications.

Indications*

  • Onlays, ¾ crowns, crowns
  • Telescope crowns, conus crowns
  • Bridges
  • Wide-span bridges
  • Cast posts / cores, bars, attachments
  • Implant-supported superstructures
  • Partial dentures

Technical Data

Composition (%):  Au 60.0 | Pd 30.6 | In 8.4 | Ga 1.0 | Re <1.0, Ru<1.0
ISO  22674:2016
ADA Class: High Noble
Type / Color: 5 / White
Density (g/cm³) 14.3
Melting Range (Solidus/Liquidus): 1125 - 1265 °C
Elastic Modulus (GPa): 152
  Porcelain Fired        Hardened                  
Vickers Hardness: 250                           280
Tensile Strength (MPa): 720                           770
0.2% Proof Stress (MPa):  530                           575
Elongation (%): 14                              12

 

Advantages

  • Ag-free
  • Extra hard
  • Excellent casting and flow properties
  • Compatible with conventional metal-ceramics (e.g. IPS Style)
  • Tested biocompatibility

Processing Data

Investment Material:  Phosphate-bonded
Preheating / Burn- out Temperature: 750 - 820 °C
Crucible  Ceramic crucible
Casting Temperature: 1330 - 1380 °C
Oxidation  °C/min/Vacuum: 950 / 1 / No
CTE: (25 – 500 °C): 14.1 x 10-6 /K
Recommended Metal Ceramic: IPS Style, IPS InLine One,  IPS InLine,  IPS InLine PoM, IPS Classic
Laser Welding Wire: Laser Ceramic White

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES

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