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 B-20 Crown and Bridge Alloy | Degudent LS Porcelain Alloy | Deva Plus Porcelain Alloy | Ney-Oro G-3 Crown and Bridge Alloy | Special White Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Type III. Designed as the economical alternative to higher nobility Type III alloys, B-20 retains all of the properties and retains good color. Can be | Degudent LS is a micro-fine, extra-hard alloy suitable for MOD's, single crowns, long span bridgework, milled restorations in conjunction with | Deva Plus is a high noble, micro-fine grain gold-palladium ceramic alloy to which most dental porcelains may be fused. Deva Plus is highly | 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 | Special White is a high noble, micro-fine grain Porcelain Alloy, which may be used with most dental porcelains. This well-balanced formula of gold, |
| Composition | Gold: 61.8 %
Palladium: 3 %
Silver: 26 %
Copper: 8 %
Zinc: Less Than 1 %
Iridium: 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: 55.1 %
Palladium: 34.5 %
Indium: Less Than 1%
Gallium: Less Than 1%
Iridium: Less Than 1 % | Gold: 68.5 %
Platinum: 2.5 %
Palladium: 4 %
Silver: 12 %
Copper: 11 %
Zinc: Less Than 1 %
Iridium: Less Than 1% | Gold: 45 %
Palladium: 39.8 %
Silver: 6.5 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Tin: Less Than 1 %
Ruthenium: Less Than 1 % |
| Hardness | 205 HV | 235 HV | 260 HV | 282 HV | 260 HV |
| Tensile Strength | 555 N/mm2 | 560 N/mm2 | 620 N/mm2 | 690 N/mm2 | 620 N/mm2 |
| Indications for Use | Not Available | MOD's
Single Crowns
Long Span Bridgework
Milled Restorations In Conjunction
With Precision Attachments
Partial Dentures
Implant Superstructures | Implants | Partial Dentures And Clasps | Single Crowns
Bridges
Implants |
| Color | Gold | Gold | White | Gold | White |
| Compatible Porcelains | Not Available | Duceragold Porcelain | Most Dental Porcelains | Not Available | Most Dental Porcelains |
| Melting Interval | 885° C - 950° C | 985° C - 1,065° C | 1,190° C - 1,275° C | 906° C - 949° C | 1,160° C - 1260° C |
| Casting Temperature | 1,040° C | 1,200° C | 1,400° C | 1,045° C | 1,350° C |
| Expansion | 19 % | 5 % | 11 % | 13 % | 10 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |