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 | Encore Porcelain Alloy | Bioney Porcelain Alloy | Degudent LS Porcelain Alloy | Degunorm Crown and Bridge Alloy | Ney-Oro CB Crown and Bridge Alloy |
Price | Inquire | Inquire | Inquire | Inquire | Inquire |
Description | Moderately priced mid-range gold alloy. Exceptional strength and proven resistance to margin warping. Encore has a lighter oxide than many competitive | 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 | Premium High Noble Alloy | Type IV. Excellent high stress capabilities. 63% nobility with the high strength needed for implant cases. With a golden hue superior to that of |
Composition | Gold: 48 %
Palladium: 40 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Tin: Less Than 1 %
Rhenium: Less Than 1 % | 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: 73.8 %
Platinum: 9 %
Silver: 9.2 %
Copper: 4.4 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Iridium: Less Than 1 % | Gold: 59 %
Palladium: 4 %
Silver: 22.5 %
Copoper: 14 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % |
Hardness | 250 HV | 180 HV | 235 HV | 230 HV | 275 HV |
Tensile Strength | 592 N/mm2 | 480 N/mm2 | 560 N/mm2 | 500 N/mm2 | 795 N/mm2 |
Indications for Use | Not Available | Not Available | MOD's
Single Crowns
Long Span Bridgework
Milled Restorations In Conjunction
With Precision Attachments
Partial Dentures
Implant Superstructures | Crowns
Bridges | Implant |
Color | White | Gold | Gold | Yellow | Gold |
Compatible Porcelains | Not Available | Not Available | Duceragold Porcelain | Not Available | Not Available |
Melting Interval | 1,156° C - 1,275° C | 1,030° C - 1,095° C | 985° C - 1,065° C | 900° C - 990° C | 860° C - 905° C |
Casting Temperature | 1,385° C | 1,190° C | 1,200° C | 1,100° C | 995° C |
Expansion | 20 % | 9 % | 5 % | 6 % | 11 % |
Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |