Dental Alloys

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.
CompanyDentsply Sirona ProstheticsDentsply Sirona Prosthetics
ItemNey-Oro A-1 Crown and Bridge AlloyDegunorm Crown and Bridge Alloy
PriceInquireInquire
DescriptionType II. Yellow gold color. High ductility yet strong enough for a firm resistance to occlusal pressure. Premium Type II performance for inlays and Premium High Noble Alloy
CompositionGold: 77.5 %
Palladium: 2 %
Silver: 12.5 %
Copper: 7.3 %
Zinc: 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 %
Hardness125 HV230 HV
Tensile Strength230 N/mm2500 N/mm2
Indications for UseInlays
Single Crowns
Partial Dentures
Long Span Bridgework
Milled Restorations
Crowns
Bridges
ColorGoldYellow
Melting Interval928° C - 968° C900° C - 990° C
Casting Temperature1,060° C1,100° C
Expansion48 %6 %
Get InfoNot AvailableNot Available
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