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 | Degudent LS Porcelain Alloy | Eclipse Porcelain Alloy | Majority Crown and Bridge Alloy | Ultima Gold Porcelain Alloy | UltraCrown SF Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Degudent LS is a micro-fine, extra-hard alloy suitable for MOD's, single crowns, long span bridgework, milled restorations in conjunction with | A proven performer. High noble classification. The silver-free formulation eliminates any fear of porcelain greening. A highly popular alloy due to | Type III. Flexibility is Majority's premier asset. Soften to Type II ductility levels for onlays or harden to Type IV strength for high stress | Designed for high strength and high sag resistance. Ultima Gold has a silver-free formula for an ideal thermal expansion fro maximum porcelain | 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 | Gold: 73.1 %
Platinum: 1.5 %
Palladium: 5.8 %
Silver: 16 %
Tin: Less Than 1 %
Zince: Less Than 1 %
Iridium: Less Than 1 % | Gold: 52 %
Palladium: 37.5 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Tin: Less Than 1 %
Rhenium: Less Than 1 % | Gold: 50 %
Palladium: 4.5 %
Silver: 10 %
Copper: 31 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Gold: 2 %
Palladium: 77.1 %
Copper: 8.3 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 % | Gold: 65 %
Palladium: 26 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 %
Tin: Less Than 1 % |
| Hardness | 235 HV | 254 HV | 220 HV | 245 HV | 254 HV |
| Tensile Strength | 560 N/mm2 | 575 N/mm2 | 526 N/mm2 | Inquire | 580 N/mm2 |
| Indications for Use | MOD's
Single Crowns
Long Span Bridgework
Milled Restorations In Conjunction
With Precision Attachments
Partial Dentures
Implant Superstructures | Implants
Restorations | Not Available | 550 N/mm2 | Single Crowns
Bridges
Implants |
| Color | Gold | White | Gold | White | White |
| Compatible Porcelains | Duceragold Porcelain | Not Available | Not Available | Inquire | Not Available |
| Melting Interval | 985° C - 1,065° C | 1,160° C - 1,265° C | 835° C - 885° C | 1,160° C - 1,280° C | 1,140° C - 1,267° C |
| Casting Temperature | 1,200° C | 1,370° C | 990° C | 1,345° C | 1,390° C |
| Expansion | 5 % | 23 % | 7 % | 28 % | 8 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |