Porta Reflex

Au (81.2%)-based dental metal-ceramic alloy, Type 4

Porta Reflex

Porta Reflex is a silver-free, high gold ceramic alloy. The mechanical properties allow a wide range of indications and the golden yellow colour enhances the natural shade reproduction in the veneer.

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 81.2 | Pt 16.0 | Zn 1.8 | Fe <1.0, Ti <1.0, Rh <1.0
ISO  22674:2016
Type / Color: 4 / Yellow
Density (g/cm³) 18.8
Melting Range (Solidus/Liquidus): 1050 - 1130 °C
Elastic Modulus (GPa): 107
  Porcelain Fired        Hardened                  
Vickers Hardness: 210                           230
Tensile Strength (MPa): 650                           680
0.2% Proof Stress (MPa):  530                           550
Elongation (%): 4                               3

 

Advantages

  • Pd and Ag-free
  • Golden yellow colour
  • Good processing and polishing
  • Compatible with conventional metal-ceramics (e.g. IPS Style)
  • Certified biocompatibility

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): 14.3 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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