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 | Bioney Porcelain Alloy | Degudent LS Porcelain Alloy | Deva 4 Porcelain Alloy | Miracast | Ney-Oro #5 Crown and Bridge Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Brillant gold color without compromising performance. Bioney has a rich gold color. Excellent for practitioners and patients who are seeking a premium | Degudent LS is a micro-fine, extra-hard alloy suitable for MOD's, single crowns, long span bridgework, milled restorations in conjunction with | Deva 4 is a high noble, micro-fine grain Porcelain Alloy, which may be used with most leading dental porcelains. Deva 4 is biocompatible and does not | Type III. The dollar-wise choice for mainstream performance and color. Miracast has rich gold color and flexible processing. Easily burnishable when | Type IV. An excellent choice for cast denture frameworks, long span bridgework and implants. Withstands cold working and adjustments. |
| Composition | Gold: 90 %
Platinum: 7.2 %
Silver: 1 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Iron: Less Than 1 %
Rhenium: Less Than 1 % | Gold: 73.1 %
Platinum: 1.5 %
Palladium: 5.8 %
Silver: 16 %
Tin: Less Than 1 %
Zince: Less Than 1 %
Iridium: Less Than 1 % | Gold: 51.1 %
Palladium: 38.5 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Iridium: Less Than 1 % | Gold: 40.9 %
Platinum: 1 %
Palladium: 4 %
Silver: 9 %
Copper: 38 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Gold: 63 %
Palladium: 5 %
Silver: 19 %
Copper: 12 %
Zinc: Less Than 1 % |
| Hardness | 180 HV | 235 HV | 235 HV | 158 HV | 260 HV |
| Tensile Strength | 480 N/mm2 | 560 N/mm2 | 545 N/mm2 | 340 N/mm2 | 685 MPa |
| Indications for Use | Not Available | MOD's
Single Crowns
Long Span Bridgework
Milled Restorations In Conjunction
With Precision Attachments
Partial Dentures
Implant Superstructures | Implants | Crowns
Bridges | Cast Denture Frameworks
Long Span Bridgework
Implants |
| Color | Gold | Gold | White | Gold | Gold |
| Compatible Porcelains | Not Available | Duceragold Porcelain | Most Dental Porcelains | Not Available | Not Available |
| Melting Interval | 1,030° C - 1,095° C | 985° C - 1,065° C | 1,230° C - 1,315° C | 840° C - 925° C | 890° C - 945° C |
| Casting Temperature | 1,190° C | 1,200° C | 1,425° C | 1,025° C | 1,035° C |
| Expansion | 9 % | 5 % | 18 % | 39 % | 15 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |