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 | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics | Dentsply Sirona Prosthetics |
| Item | Degubond 60 Porcelain Alloy | Degustar GA-2 Porcelain Alloy | G Cast Crown and Bridge Alloy | Ney-Oro 60 Crown and Bridge Alloy | SMG-3 Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Degubond 60 is a micro-fine grain palladium-silver alloy, which may be used with most commercial porcelains. Degubond 60 is recommended for crown and | Degustar GA-2 is a noble, micro-fine grain palladium-silver alloy which offers excellent physical properties and represents an outstanding alternative | G Cast is a noble, yellow Crown & Bridge Alloy containing 50 %; gold. This Type III alloy features a micro-fine grain structure and is ideally suited | Type IV. Ney-Oro 60's outstanding strength is suitable for implant applications and demanding crown and bridge cases. Produces exceptional smooth | This time-proven alloy is an example of why quality prevails. Light oxide enhances porcelain esthetics. Low non-noble content makes SMG-3 an excellent |
| Composition | Palladium: 60.4 %
Silver: 28 %
Tin: Less Than 1 %
Indium: Less Than 1 %
Gallium: Less Than 1 %
Ruthenium: Less Than 1 %
Iridium: Less Than 1 % | Gold: 2 %
Palladium: 52 %
Silver: 36 %
Tin: Less Than 1 %
Zinc: Less Than 1 %
Indium: Less Than 1 %
Ruthenium: Less Than 1 % | Gold: 50 %
Palladium: 5 %
Silver: 32 %
Copper: 12 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Gold: 56 %
Palladium: 4 %
Silver: 19.9 %
Copper: 17 %
Zinc: Less Than 1 %
Iridium: Less Than 1 % | Gold: 81 %
Platinum: 6%
Palladium: 11 %
Rhenium: Less Than 1 %
Tin: Less Than 1 %
Iron: Less Than 1 % |
| Hardness | 260 HV | 250 HV | 235 HV | 265 HV | 240 HV |
| Tensile Strength | 660 N/mm2 | 560 N/mm2 | 815 N/mm2 | 790 N/mm2 | 700 N/mm2 |
| Indications for Use | Implants
Crowns
Bridgework | Implants
Crowns
Bridgework | MOD Inlays
Single Crowns
Small Bridgework | Implant
Crown And Bridge Cases | Implants |
| Color | White | White | Gold | Gold | White |
| Melting Interval | 1,225° C - 1,280° C | 1,150° C - 1,230° C | 860° C - 1,700° C | 835° C - 865° C | 1,160° C - 1,270° C |
| Casting Temperature | 1,425° C | 1,400° C | 1,125° C | 955° C | 1,335° C |
| Expansion | 12 % | 10 % | 8 % | 8 % | 5 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |