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 | ARGEDENT EURO Porcelain Alloy | ARGELITE 55 Porcelain Alloy | Argenco 58 Crown and Bridge Alloy | ARGISTAR YELLOW LF Porcelain Alloy | NOBLECROWN NF Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Argedent EURO is a versatile High Noble alloy that casts, finishes, solders and laser welds very easily, with broad porcelain compatibility. Argedent | ARGELITE 55 is micro-fine grain alloy, compatible with most dental porcelains. Their micro fine grain structures and superior physical properties | Type III - Hard crown and bridge alloy. | ARGISTAR YELLOW LF is a multipurpose alloy for full cast and is compatible with high coefficient high fusing porcelains. Polishes to high luster. | NobleCrown NF is an economical, white color, Noble porcelain alloy formulated to be compatible with all major porcelains. Superior physical properties |
| Composition | Gold: 40 %
Palladium: 39.4 %
Silver: 10 %
Indium: 8.8 %
Gallium: 1.4 %
Ruthenium: Less Than 1 %
Tin: Less Than 1 %
| Palladium: 55 %
Silver: 34 %
Indium: 6 %
Tin: 3 %
Zinc: 1 %
Ruthenium: Less Than 1 %
Gallium: Less Than 1 % | Gold: 58 %
Palladium: 3.25 %
Copper: 10.45 %
Zinc: 1 %
Indium: Less Than 1 %
Iridium: Less Than 1 % | Palladium: 40 %
Indium: 32 %
Silver: 24.85 %
Gold: 2 %
Zinc: 1 %
Iridium: Less Than 1 % | Cobalt: 42.75 %
Palladium: 25 %
Chromium: 20 %
Molybdenum: 12 %
Boron: Less Than 1 % |
| Hardness | Soft: 260 HV
Hard: 290 HV | Soft: 170 HV
Hard: 330 HV | 210 HV | After Firing: 180 HV | After Firing: 335 HV |
| Tensile Strength | Soft: 800 N/mm2
Hard: 840 N/mm2 | Soft: 641 N/mm2
Hard: 966 N/mm2 | 620.5 N/mm2 | Not Available | Soft:690 N/mm2
Hard: --- |
| Indications for Use | Single Crown
Multi-Units & Bridges | Single Crown
Multi-Units & Bridges | Not Available | Single Units Bridges
Three Unit Bridges | Single Crown
Multi-Units & Bridges |
| Color | White | White | Yellow | Yellow | White |
| Compatible Porcelains | Not Available | Not Available | Not Available | High Coefficient High Fusing Porcelains | All Major Porcelains |
| Melting Interval | 1,120º C - 1,260º C | 1,171º C - 1,265º C | 915.5° C - 965.5° C | 915º C - 1,180º C | 1,250º C - 1,290º C |
| Casting Temperature | 1,400º C | 1,370º C | 1,041° C | 1,330º C | 1,400º C |
| Expansion | 14.1 µm/mm-º C At 500º C | 14.8 µm/mm-° C At 500º C | Not Available | 16.5 µm/mm-°C At 500º C | 14.4 µm/mm-º C At 500º C |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |