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 | Miracast | Acclaim Lite Porcelain Alloy | Ney-Oro PF-CB Crown and Bridge Alloy | Option Porcelain Alloy | Palliag M Crown and Bridge Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Type III. The dollar-wise choice for mainstream performance and color. Miracast has rich gold color and flexible processing. Easily burnishable when | Outstanding performance is a direct result of Acclaim's high yield strength. Averaging 30% stronger than competitive alloys, the increased strength | Type III. Palladium-free for outstanding gold color with excellent tarnish resistance. PF-CB is a great multi- purpose alloy due to its combination of | This alloy started and leads the high palladium revolution. It remains the high strength standard used to measure all other palladium-based ceramic | Palliag M is a Type IV, noble, platinum colored Crown & Bridge Alloy containing 2%; gold. This economical, versatile alloy can be used for all crown |
| Composition | Gold: 40.9 %
Platinum: 1 %
Palladium: 4 %
Silver: 9 %
Copper: 38 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Palladium: 49.9 %
Silver: 39.9 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 %
Rhenium: Less Than 1 % | Gold: 80 %
Platinum: 1 %
Silver: 9%
Copper: 9 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Gold: 2 %
Palladium: 78.8 %
Copper: 8 %
Boron: Less Than 1 %
Gallium: Less Than 1 %
Iridium: Less Than 1 % | Gold: 2 %
Palladium: 27.4 %
Silver: 58.5 %
Copper: 10.5 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % |
| Hardness | 158 HV | 250 HV | 126 HV | 425 HV | 310 HV |
| Tensile Strength | 340 N/mm2 | 635 N/mm2 | 275 N/mm2 | 900 N/mm2 | 940 N/mm2 |
| Indications for Use | Crowns
Bridges | Not Available | Inlays
Single Crowns
Partial Dentures
Long Span Bridgework
Milled Restorations | Implants | Crown Types Including
Milled Telescopic Crowns
Connectors And Attachments
Long Span Bridges
Cast Partial Dentures |
| Color | Gold | White | Gold | White | White |
| Melting Interval | 840° C - 925° C | 1,175° C - 1,275° C | 885° C - 935° C | 1,100° C - 1,190° C | 950° C - 1,040° C |
| Casting Temperature | 1,025° C | 1,405° C | 1,025° C | 1,290° C | 1,200° C |
| Expansion | 39 % | 11 % | 45 % | 23 % | 3 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |