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	BioUniversal E Porcelain Alloy	Calisto Implant 33 Alloy	IPS d.SIGN 30 Porcelain Alloy	X-L Crown and Bridge Alloy	Y-1 Porcelain Alloy
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Description	BioUniversal is a silver-palladium universal alloy which is suitable as a substructure for veneers made of special ceramic and composite materials.	Callisto Implant 33 is a reduced-gold ceramic alloy which is especially suitable for the fabrication of implant superstructures as a result of its	IPS d.SIGN 30 is a cobalt-chromium ceramic alloy. Its mechanical and physical properties are coordinated with the IPS d.SIGN fluorapatite glass-	Clinically proven reduced gold crown and bridge alloy demonstrating outstanding properties.	Y-1 is a clinically proven high-gold ceramic alloy demonstrating outstanding properties.
Composition	Silver: 52.2 % Palladium: 40 % Tin: 5.5 % Indium: 1.4 % Rhenium: Less Than 1 % Ruthenium: Less Than 1 % Zinc: Less Than 1%	Palladium: 52.8 % Gold: 33 % Silver: 7.2 % Gallium: 4.1 % Tin: 2.4 % Indium: Less Than 1 % Rhenium: Less Than 1 % Ruthenium: Less Than1 % 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: 61.7 % Palladium: 3 % Silver: 25.2 % Copper: 9.6 % Indium: Less Than 1 % Iridium: Less Than 1 %	Gold: 74.8 % Palladium: 12.6 % Silver: 10.2 % Tin: 1.3 % Indium: 1 % Rhenium: Less Than 1 % Lithium: Less Than 1 %
Hardness	190 HV	235 HV	375 HV	140 HV	185 HV
Tensile Strength	127 N/mm²	500 N/mm²	Not Available	415 N/mm²	340 N/mm²
Indications for Use	Inlays Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges	Inlays Onlays 3/4 Crowns Crowns Ceramic Crowns Telescopic And Conus Crowns Posts Short And Long Span Bridges Partial Dentures Implant Superstructures	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	Onlays Inlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges
Color	White	White	White	Yellow	Yellow
Compatible Porcelains	Special Ceramics Composite Materials	Not Available	Not Available	Not Available	Not Available
Melting Interval	1,100° C - 1150° C	1,115° C - 1,305° C	1,145° C - 1,165° C	890° C - 950° C	1,175° C - 1,205° C
Casting Temperature	1,200° C - 1,260° C	1,370° C - 1,426° C	1,240° C - 1,350° C	1,005° C - 1,065° C	1,260° C - 1,320° C
Expansion	10 %	35 %	6 %	26 %	15 %
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