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 | 4all Porcelain Alloy | Harmony KF Crown and Bridge Alloy | Harmony PF Crown and Bridge Alloy | WLW Crown and Bridge Alloy | XL-X Crown and Bridge Alloy |
Price | Inquire | Inquire | Inquire | Inquire | Inquire |
Description | 4all is a nickel-chromium ceramic alloy. Its mechanical and physical properties have been coordinated with conventional feldspar ceramics. | Clinically proven high gold crown and bridge alloy demonstrating outstanding properties. | Clinically proven high gold crown and bridge alloy demonstrating outstanding properties. | Clinically proven palladium-based alloy demonstrating outstanding properties. | Clinically proven reduced-gold crown and bridge alloy demonstrating outstanding properties. |
Composition | Nickle: 61.4 %
Chromium: 25.7 %
Molybdenum: 11 %
Silicon: 1.5 %
Manganese: Less Than 1 %
Aluminum: Less Than 1 %
Carbon: Less Than 1 % | Gold: 75.1 %
Platinum: 3.2 %
Palladium: 6.8 %
Silver: 10.2 %
Zinc: 2 %
Indium: 2.2 %
Iridium: Less Than 1 %
Tin: Less Than 1 % | Gold: 72 %
Platinum: 3.6 %
Copper: 9.8 %
Silver: 13.7 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Palladium: 25 %
Silver: 71 %
Indium: 4 %
Lithium: Less Than 1 % | Gold: 62.8 %
Palladium: 3.9 %
Silver: 16.1 %
Copper: 15.7 %
Zinc: 1 %
Iridium: Less Than 1 % |
Hardness | 235 HV | 225 HV | 245 HV | 150 HV | 225 HV |
Tensile Strength | Not Available | 530 N/mm2 | 525 N/mm2 | 320 N/mm2 | 750 N/mm2 |
Indications for Use | Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges | Inlays
Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Posts
Short And Long Span Bridges
Implant Superstructures | Onlays
Inlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges
Implant Superstructures
Model Casts | 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
Posts
Attachments
Short And Long Span Bridges
Implant Superstructures
Partial Dentures |
Color | White | Yellow | Yellow | White | Yellow |
Melting Interval | 1,260° C - 1,350° C | 970° C - 1,080° C | 900° C - 940° C | 1,045° C - 1,130° C | 870° C - 910° C |
Casting Temperature | 1,405° C - 1,465° C | 1,135° C - 1,200° C | 1,000° C - 1,080° C | 1,180° C - 1,240° C | 965° C - 1,025° C |
Expansion | 12 % | 5 % | 18 % | 5 % | 13 % |
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