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 | Argen | Argen | Argen | Argen | Argen |
| Item | ARGISTAR YELLOW LF Porcelain Alloy | ARGELITE 55 Porcelain Alloy | ARGELITE 61 Porcelain Alloy | Argenco Y+ Crown and Bridge Alloy | NOBLECROWN NF Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | ARGISTAR YELLOW LF is a multipurpose alloy for full cast and is compatible with high coefficient high fusing porcelains. Polishes to high luster. | ARGELITE 55 is micro-fine grain alloy, compatible with most dental porcelains. Their micro fine grain structures and superior physical properties | ARGELITE 61 is micro-fine grain alloys, compatible with most dental porcelains. Their micro fine grain structures and superior physical properties | Argenco Y+ from the Argen Corporation brings all the qualities of a Yellow alloy at a fraction of the cost. This type III Noble Yellow alloy is | NobleCrown NF is an economical, white color, Noble porcelain alloy formulated to be compatible with all major porcelains. Superior physical properties |
| Composition | Palladium: 40 %
Indium: 32 %
Silver: 24.85 %
Gold: 2 %
Zinc: 1 %
Iridium: Less Than 1 % | Palladium: 55 %
Silver: 34 %
Indium: 6 %
Tin: 3 %
Zinc: 1 %
Ruthenium: Less Than 1 %
Gallium: Less Than 1 % | Palladium: 60.55 %
Silver: 28.1 %
Indium: 6.6 %
Tin: 2.5 %
Gallium: 2.1 %
Ruthenium: Less Than 1 % | Palladium: 34.9 %
Silver: 30 %
Indium: 30 %
Zinc: 3 %
Gold: 2 %
Iridium: Less Than 1 % | Cobalt: 42.75 %
Palladium: 25 %
Chromium: 20 %
Molybdenum: 12 %
Boron: Less Than 1 % |
| Hardness | After Firing: 180 HV | Soft: 170 HV
Hard: 330 HV | Soft: 180 HV
Hard: 310 HV | 180 HV | After Firing: 335 HV |
| Tensile Strength | Not Available | Soft: 641 N/mm2
Hard: 966 N/mm2 | Soft: 676 N/mm2
Hard: 997 N/mm2 | 405 N/mm2 | Soft:690 N/mm2
Hard: --- |
| Indications for Use | Single Units Bridges
Three Unit Bridges | Single Crown
Multi-Units & Bridges | Single Crown
Multi-Units & Bridges | Spruing (Single Crown)
Spruing (Three Unit Bridge) | Single Crown
Multi-Units & Bridges |
| Color | Yellow | White | White | Yellow | White |
| Compatible Porcelains | High Coefficient High Fusing Porcelains | Not Available | Most Dental Porcelains | Not Available | All Major Porcelains |
| Melting Interval | 915º C - 1,180º C | 1,171º C - 1,265º C | 1,130º C - 1,275º C | 1,040º C - 1,120º C | 1,250º C - 1,290º C |
| Casting Temperature | 1,330º C | 1,370º C | 1370º C | 1,210º C | 1,400º C |
| Expansion | 16.5 µm/mm-°C At 500º C | 14.8 µm/mm-° C At 500º C | 14.5 µm/mm-° C At 500º C | Not Available | 14.4 µm/mm-º C At 500º C |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |