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	Aquarius XH Porcelain Alloy	BioUniversal PKF Porcelain Alloy	Capricorn Porcelain Alloy	IPS d.SIGN 30 Porcelain Alloy	IPS d.SIGN 91 Porcelain Alloy
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Description	Aquarius XH is a silver-free high-gold ceramic alloy demonstrating outstanding properties.	BioUniversal PKF is a high-gold universal alloy for veneering applications involving special ceramic and composite materials.	Capricorn is a palladium-based ceramic alloy demonstrating outstanding properties.	IPS d.SIGN 30 is a cobalt-chromium ceramic alloy. Its mechanical and physical properties are coordinated with the IPS d.SIGN fluorapatite glass-	IPS d.SIGN 91 is an extra hard reduced gold ceramic alloy. Its mechanical and physical properties are coordinated with the IPS d.SIGN fluorapatite
Composition	Gold: 82.8 % Platinum : 9 % Palladium: 5 % Tin: Less Than 1 % Indium: 2.5 % Iridium: Less Than 1 % Tantalum: Less Than 1 % Iron: Less Than 1 % Lithium: 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 %	Palladium: 78.1 % Indium: 6.5 % Gallium: 6 % Gold: 6 % Silver: 3 % Ruthenium: Less Than 1 % Rhenium: Less Than 1 % Lithium: Less Than 1 %	Cobalt: 60.2 % Chromium: 30.1 % Gallium: 3.9 % Niobium: 3.2 % Molybdenum : Less Than 1 % Silicon: Less Than 1 % Boron : Less Than 1 % Iron: Less Than 1 % Aluminum : Less Than 1 % Lithium: Less Than 1 %	Gold: 60 % Palladium: 30.6 % Indium: 8.4 % Gallium: 1 % Rhenium: Less Than 1 % Ruthenium: Less Than 1 %
Hardness	220 HV	165 HV	260 HV	375 HV	250 HV
Tensile Strength	83 N/mm²	89 N/mm²	97 N/mm²	Not Available	108 N/mm²
Indications for Use	Onlays 3/4 Crowns Crowns Telescope And Conus Crowns PFM Crowns Posts Short And Long Span Bridges Implant Superstructures Partial Dentures	Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges	Onlays Inlays 3/4 Crowns Crowns Telescope And Conus Crowns PFM Crowns Posts Short And Long Span Bridges Implant Superstructures Partial Dentures	Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges Implant Superstructures Model Casts	Onlays Inlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges Implant Superstructures Model Casts
Color	Yellow	Yellow	White	White	White
Compatible Porcelains	Not Available	Low Fusing Ceramics Composite Veneering Materials	Not Available	Not Available	Not Available
Melting Interval	1,150° C - 1,185° C	945° C - 1,035° C	1,170° C - 1,335° C	1,145° C - 1,165° C	1,175° C - 1,305° C
Casting Temperature	1,240° C - 1,300° C	1,090° C - 1,150° C	1,390° C - 1,450° C	1,240° C - 1,350° C	1,360° C - 1,420° C
Expansion	7 %	8 %	33 %	6 %	31 %
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