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	Evolution Lite Porcelain Alloy	4all Porcelain Alloy	IPS d.SIGN 53 Porcelain Alloy	W-2 Porcelain Alloy	XL-X Crown and Bridge Alloy
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Description	Evolution Lite is a gold-containing alloy with optimum mechanical and physical properties for IPS InLine Metal-Ceramic and conventional feldspar	4all is a nickel-chromium ceramic alloy. Its mechanical and physical properties have been coordinated with conventional feldspar ceramics.	IPS d.SIGN 53 is a palladium-silver ceramic alloy. Its mechanical and physical properties are coordinated with the IPS d.SIGN fluorapatite glass-	W-2 is a clinically proven reduced gold ceramic alloy demonstrating outstanding properties.	Clinically proven reduced-gold crown and bridge alloy demonstrating outstanding properties.
Composition	Gold: 40.3 % Palladium: 39.3 % Indium: 9.3 % Silver: 9.2 % Gallium: 1.8 % Ruthenium: Less Than 1 %	Nickle: 61.4 % Chromium: 25.7 % Molybdenum: 11 % Silicon: 1.5 % Manganese: Less Than 1 % Aluminum: Less Than 1 % Carbon: Less Than 1 %	Palladium : 53.8 % Gold: 34.9 % Tin: 7.7 % Zinc: 1.2 % Indium: 1.7 % Rhenium: Less Than 1 % Ruthenium: Less Than 1 % Lithium: Less Than 1 % Platinum: Less Than 1%	Gold: 44.8 % Palladium: 40.5 % Silver: 5.9 % Indium: 3.3 % Tin: 2.2 % Gallium: 1.8 % Ruthenium: Less Than 1 % Rhenium: Less Than 1 % Aluminum: Less Than 1 % Silicon: Less Than 1 % Boron: Less Than 1 % Nickle: Less Than 1 % Liithium: Less Than 1 %	Gold: 62.8 % Palladium: 3.9 % Silver: 16.1 % Copper: 15.7 % Zinc: 1 % Iridium: Less Than 1 %
Hardness	280 HV	235 HV	250 HV	205 HV	225 HV
Tensile Strength	130 N/mm²	Not Available	132 N/mm²	113 N/mm²	750 N/mm²
Indications for Use	Onlays Inlays Partial Crowns Single Crowns Telescope And Conus Crowns Root Canal Posts Short And Long Span Bridges Model Casts Implant Superstructures	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 Implant Superstructures Model Casts	Inlays Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Posts Short And Long Span Bridges Implant Superstructures Partial Dentures	Onlays Partial Crowns Single Crowns Telescope And Conus Crowns Posts Attachments Short And Long Span Bridges Implant Superstructures Partial Dentures
Color	White	White	White	White	Yellow
Compatible Porcelains	Not Available	Not Available	Conventional Ceramics	Not Available	Not Available
Melting Interval	1,100° C - 1,260° C	1,260° C - 1,350° C	1,180° C - 1,280° C	1,190° C - 1,280° C	870° C - 910° C
Casting Temperature	1,315° C - 1,375° C	1,405° C - 1,465° C	1,335° C - 1,395° C	1,330° C - 1,390° C	965° C - 1,025° C
Expansion	11 %	12 %	13 %	20 %	13 %
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