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 | Acclaim Lite Porcelain Alloy | Ney-Oro #5 Crown and Bridge Alloy | SMG-CF Porcelain Alloy | Ultima Gold Porcelain Alloy | Ultima Lite Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Outstanding performance is a direct result of Acclaim's high yield strength. Averaging 30% stronger than competitive alloys, the increased strength | Type IV. An excellent choice for cast denture frameworks, long span bridgework and implants. Withstands cold working and adjustments. | A white porcelain alloy designed to compete with high palladium prices. This 65% gold alloy has no copper. A small amount of silver keeps the density | Designed for high strength and high sag resistance. Ultima Gold has a silver-free formula for an ideal thermal expansion fro maximum porcelain | Proven superior marginal integrity. This noble palladium alloy delivers superior fitting restorations. Ideal mid-range thermal expansion value means |
| Composition | Palladium: 49.9 %
Silver: 39.9 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 %
Rhenium: Less Than 1 % | Gold: 63 %
Palladium: 5 %
Silver: 19 %
Copper: 12 %
Zinc: Less Than 1 % | Gold: 67.4 %
Palladium: 22 %
Silver: 4.9 %
Indium: Less Than 1 %
Ruthenium: Less Than 1 %
Tin: 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 % | Palladium: 78.4 %
Copper: 8 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 % |
| Hardness | 250 HV | 260 HV | 220 HV | 245 HV | 300 HV |
| Tensile Strength | 635 N/mm2 | 685 MPa | 565 N/mm2 | Inquire | 565 N/mm2 |
| Indications for Use | Not Available | Cast Denture Frameworks
Long Span Bridgework
Implants | Long Span Bridges | 550 N/mm2 | Not Available |
| Color | White | Gold | White | White | White |
| Compatible Porcelains | Not Available | Not Available | Not Available | Inquire | Not Available |
| Melting Interval | 1,175° C - 1,275° C | 890° C - 945° C | 1,195° C - 1,265° C | 1,160° C - 1,280° C | 1,175° C - 1,255° C |
| Casting Temperature | 1,405° C | 1,035° C | 1,390° C | 1,345° C | 1,345° C |
| Expansion | 11 % | 15 % | 7 % | 28 % | 15 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |