Porta Geo Ti

Au (77.4%)-based dental metal-ceramic alloy, Type 4

Porta Geo Ti

Porta Geo Ti is a palladium-free ceramic alloy. The high heat resistance allows for the production of ceramic veneered to metal bridges and implant-supported superstructures of high accuracy.

Indications*

  • Inlays
  • 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 77.4 | Pt 18.0 | Ag 2.0 | Zn 1.8 | Ti <1.0, Rh <1.0
ISO  22674:2016
Type / Color: 4 / Rich Yellow
Density (g/cm³) 18.5
Melting Range (Solidus/Liquidus): 1060 - 1140 °C
Elastic Modulus (GPa): 109
  Porcelain Fired        Hardened                  
Vickers Hardness: 200                           210
Tensile Strength (MPa): 630                           670
0.2% Proof Stress (MPa):  520                           570
Elongation (%): 4                               3

 

Advantages

  • Pd-free
  • High heat resistance, especially for implant-supported superstructures
  • Wide range of indications
  • Compatible with conventional metal-ceramics (e.g. IPS Style)

Processing Data

Investment Material:  Phosphate-bonded
Preheating / Burn- out Temperature: 800 °C
Crucible  Carbon crucible / Ceramic crucible
Casting Temperature: 1300 °C
Oxidation  °C/min/Vacuum: 930 / 5 / No
CTE: (25 – 500 °C): 14.1 x 10-6 /K
Recommended Metal Ceramic: IPS Style, IPS InLine
Laser Welding Wire: Porta Geo Ti

*See TYPE CLASSIFICATION DUE TO PHYSICAL PROPERTIES

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