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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