Dental alloys are used for a casting a range of restorations, copings, frames and more. These alloys can be composed of a range of noble, high noble and base metals, and each mixture offers different properties that can make one alloy ideal for a specific restorative situation and another alloy completely unsuited to the same task. Full contour crowns and bridges are most often case from noble and high noble metals such as gold and platinum, but these softer metals might not be suited for posterior crowns on a bruxing patient. A wider range of alloys can be used for casting copings and substructures for porcelain-fused-to-metal (PFM) restorations. It is important to coordinate the alloy and the ceramic systems being used for a PFM restoration. Casting dental alloys requires specific techniques with different alloys melting at different temperatures, so be sure to follow the protocols that deliver the best results for your lab.
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| Company | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics |
| Item | Ney-Oro G-3 | BiOcclus Porcelain Alloy | Degudent H Porcelain Alloy | Degudent U Porcelain Alloy | UltraCrown SF Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Type IV. A rigid high strength alloy, G-3 is an excellent choice and is highly recommended for implant cases. Suitable for fabrication of partial | BiOcclus 4 is a micro-fine high noble alloy with Type IV strength. The absence of copper and palladium guarantees both tarnish and corrosion | Degudent H is a high noble micro-fine Porcelain Alloy, which may be used with most dental porcelains. Degudent H is highly biocompatible and features | Degudent U is a high noble, micro-fine Porcelain Alloy, which may be used with most dental porcelains. Degudent U is highly biocompatible and is | UltraCrown SF is a high noble, micro-fine grain Porcelain Alloy, which may be used with most dental porcelains. The well balanced white gold-palladium |
| Composition | Au - 68.5
Pt - 2.5
Pd - 4.0
Ag - 12.0
Cu - 11.0
Zn - Trace | Gold: 85.8 %
Platinum: 11 %
Zinc: Less Than 1%
Indium: Less Than 1 %
Rhodium: Less Than 1 %
Tantalum: Less Than 1 % | Gold: 84.4 %
Platinum: 8 %
Palladium: 5 %
Indium: Less Than 1 %
Tantalum: Less Than 1 % | Gold: 77.3 %
Platinum: 9.8 %
Palladium: 8.9 %
Silver: 1.2 %
Copper: 0.3 %
Indium: Less Than 1 %
Iridium: Less Than 1 %
Iron: Less Than 1 %
Rhenium: Less Than 1 %
Tin: Less Than 1 % | Gold: 65 %
Palladium: 26 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 %
Tin: Less Than 1 % |
| Hardness | 282 HV | 210 HV | 220 HV | 240 HV | 254 HV |
| Tensile Strength | Inquire | 530 N/mm2 | 600 N/mm2 | 580 N/mm2 | 580 N/mm2 |
| Indications for Use | Implant Cases
Partial Dentures
Clasps | Not Available | Bridges
Implant Superstructures | Bridges
Implants | Single Crowns
Bridges
Implants |
| Color | Gold | Gold | Gold | White | White |
| Compatible Porcelains | Inquire | High Fusing Medium Coefficient Porcelains | Most Dental Porcelains | Most Dental Porcelains | Not Available |
| Melting Interval | 906° C - 949° C | 1,040° C - 1,140° C | 1,100° C - 1,210° C | 1,150° C - 1,260° C | 1,140° C - 1,267° C |
| Casting Temperature | 1045° C | 1,300° C | 1,400° C | 1,400° C | 1,390° C |
| Expansion | 13% | 8 % | 3 % | 3 % | 8 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |