Side-by-side comparison of 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.


Company	Ivoclar Vivadent Inc.	Ivoclar Vivadent Inc.	Ivoclar Vivadent Inc.	Ivoclar Vivadent Inc.	Ivoclar Vivadent Inc.
Item	Harmony KF Crown and Bridge Alloy	BioUniversal PKF Porcelain Alloy	Evolution Lite Porcelain Alloy	Harmony Medium Crown and Bridge Alloy	Solarcast 20 Crown and Bridge Alloy
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Description	Clinically proven high gold crown and bridge alloy demonstrating outstanding properties.	BioUniversal PKF is a high-gold universal alloy for veneering applications involving special ceramic and composite materials.	Evolution Lite is a gold-containing alloy with optimum mechanical and physical properties for IPS InLine Metal-Ceramic and conventional feldspar	Clinically proven high gold crown and bridge alloy demonstrating outstanding properties.	Clinically proven palladium-based alloy demonstrating outstanding properties.
Composition	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: 75 % Platinum: 8.6 % Silver: 11.9 % Zinc : 2 % Indium : Less Than 1 % Iridium: Less Than 1 % Iron: Less Than 1 % Tantalum: Less Than 1 % Rhodium: Less Than 1 %	Gold: 40.3 % Palladium: 39.3 % Indium: 9.3 % Silver: 9.2 % Gallium: 1.8 % Ruthenium: Less Than 1 %	Gold: 76.8 % Silver: 12.8 % Copper: 8.3 % Palladium: Less Than 1 % Zinc: Less Than 1 % Indium: Less Than 1 % Iridium: Less Than 1 %	Gold: 20 % Palladium: 15 % Silver: 40 % Indium: 11 % Copper: 10 % Tin: 2 % Zinc: 2 %
Hardness	225 HV	165 HV	280 HV	120 HV	195 HV
Tensile Strength	530 N/mm²	89 N/mm²	130 N/mm²	235 N/mm²	Not Available
Indications for Use	Inlays Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Posts Short And Long Span Bridges Implant Superstructures	Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges	Onlays Inlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges Model Casts Implant Superstructures	Inlays Onlays Partial Crowns Single Crowns Short Span Bridges	Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges
Color	Yellow	Yellow	White	Rich Yellow	Yellow
Compatible Porcelains	Not Available	Low Fusing Ceramics Composite Veneering Materials	Not Available	Not Available	Not Available
Melting Interval	970° C - 1,080° C	945° C - 1,035° C	1,100° C - 1,260° C	880° C - 945° C	815° C - 875° C
Casting Temperature	1,135° C - 1,200° C	1,090° C - 1,150° C	1,315° C - 1,375° C	1,000° C - 1,060° C	930° C - 990° C
Expansion	5 %	8 %	11 %	40 %	8 %
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