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 | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. |
Item | Academy Gold XH Crown and Bridge Alloy | BioUniversal E Porcelain Alloy | BioUniversal PdF Porcelain Alloy | BioUniversal Porcelain Alloy | Maxigold Crown and Bridge Alloy |
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Description | Clinically proven high gold crown and bridge alloy demonstrating outstanding properties. | BioUniversal is a silver-palladium universal alloy which is suitable as a substructure for veneers made of special ceramic and composite materials. | BioUniversal PdF is a gold-reduced universal alloy for veneering applications involving special ceramic and composite materials. | BioUniversal is a gold-reduced universal alloy for veneering applications involving special ceramic and composite materials. | Clinically proven reduced gold crown and bridge alloy demonstrating outstanding properties. |
Composition | Gold: 70.7 %
Platinum: 3.6 %
Silver: 13.7 %
Copper: 10 %
Zinc: 1 %
Tin: 1 %
Iridium: Less Than 1 % | Silver: 52.2 %
Palladium: 40 %
Tin: 5.5 %
Indium: 1.4 %
Rhenium: Less Than 1 %
Ruthenium: Less Than 1 %
Zinc: Less Than 1% | Gold: 71.1 %
Platinum: 9.2 %
Silver: 11.7 %
Copper: 4.5 %
Zinc: 1.5 %
Indium: 1.3 %
Iridium: Less Than 1 %
Iron: Less Than 1 %
Tantalum: Less Than 1 % | Gold: 59.4 %
Silver: 25.5 %
Paladium: 9.5 %
Platinum: 2 %
Zinc: 2 %
Tin: Less Than 1 %
Iron: Less Than 1 %
Rhenium: Less Than 1 %
Ruthenium: Less Than 1 % | Gold: 59.5 %
Palladium: 2.7 %
Silver: 26.3 %
Copper: 8.5 %
Zinc: 2.7 %
Indium: Less Than 1 %
Iridium: Less Than 1 % |
Hardness | 220 HV | 190 HV | 225 HV | 225 HV | 150 HV |
Tensile Strength | 505 N/mm2 | 127 N/mm2 | 85 N/mm2 | 103 N/mm2 | 310 N/mm2 |
Indications for Use | Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Posts
Short And Long Span Bridges
Implant Superstructures | Inlays
Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges | Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges | Inlays
Onlays
3/4 Crowns
Crowns
Telescope And Conus Crowns
PFM Crowns
Posts
Short And Long Span Bridges
Implant Superstructures | Inlays
Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges |
Color | Yellow | White | Yellow | Yellow | Yellow |
Compatible Porcelains | Not Available | Special Ceramics
Composite Materials | Special Ceramics
Composite Veneering Materials | Low Fusing Ceramics
Composite Veneering Materials | Not Available |
Melting Interval | 860° C - 925° C | 1,100° C - 1150° C | 910° C - 970° C | 1,020° C - 1,100° C | 840° C - 890° C |
Casting Temperature | 980° C - 1,040° C | 1,200° C - 1,260° C | 1,080° C - 1,140° C | 1,155° C - 1,215° C | 940° C - 1,000° C |
Expansion | 5 % | 10 % | 9 % | 6 % | 25 % |
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