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 | Orion UWX Porcelain Alloy | BioGold Plus Porcelain Alloy | Carrara PdF Porcelain Alloy | Orion Isis Plus Porcelain Alloy | Orion WX Porcelain Alloy |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | White dental ceramic gold alloy. | Biocybernetically neutral ceramic gold alloy. | Rich yellow alloy palladium-free dental casting and ceramic alloy. | Gold palladium dental ceramic alloy. | White gold reduced dental ceramic alloy. |
| Composition | Gold: 75 %
Palladium: 18.5 %
Silver: 2.5 %
Tin: 1.5 %
Indium: 2.4 %
Rhenium: Less Than 1 %
Copper: Less Than 1 %
Iron: Less Than 1 % | Gold: 86.5 %
Platinum: 10.5 %
Zinc: 1.5 %
Manganese: Less Than 1 %
Tantalum: Less Than 1 %
Rhodium: Less Than 1 %
Indium: Less Than 1 % | Gold: 75 %
Platinum: 9 %
Silver: 12.5 %
Zinc: 2 %
Rhodium: 1 %
Tantalum: Less Than 1 %
Iridium: Less Than 1 % | Gold: 15 %
Palladium: 52 %
Silver: 22.5 %
Tin: 6.4 %
Zinc: 1.6 %
Platinum: 0.2 % | Gold: 52 %
Palladium: 38 %
Indium: 8.2 %
Gallium: 1.6 %
Rhenium: Less Than 1 %
Silver: Less Than 1 % |
| Hardness | As Cast: 200 HV
After Firing: 210 HV
Hard: 250 HV
Soft: 170 HV | As Cast: 180 HV
After Firing: 220 HV
Hard: 250 HV
Soft: 145 HV | As Cast: 155 HV
After Firing : 220 HV
Hard: 235 HV
Soft: 145 HV | As Cast: 220 HV
After Firing: 250 HV
Hard: 260 HV
Soft: 160 HV | As Cast: 235 HV
After Firing: 240 HV
Hard: 260 HV
Soft: 230 HV |
| Tensile Strength | As Cast: 700 N/mm2
After Firing: 700 N/mm2
Hard: 760 N/mm2 | As Cast: 600 N/mm2
After Firing: 650 N/mm2
Hard: 750 N/mm2 | As Cast: 520 N/mm2
After Firing: 710 N/mm2
Hard: 760 N/mm2 | As Cast: 900 N/mm2
After Firing: 760 N/mm2
Hard: 780 N/mm2 | As Cast: 906 N/mm2
After Firing: 850 N/mm2
Hard: 890 N/mm2 |
| Indications for Use | Crowns
Bridges
Precision Milling
Bars And Attachments | Crowns
Precision Milling Bars
Attachments
Crowns And Bridges For Porcelain-To-Metal Technique | Crowns
Bridgwork
Inlays
Onlays
Telescopic Crowns
Superstructure Implants | Crowns
Precision Milling Bars
Attachments
Crowns And Bridges For Porcelain-To-Metal Technique | Crowns
Bridges
Precision Milling
Bars And Attachments |
| Color | White | Rich Yellow | Rich Yellow | White | White |
| Melting Interval | 1,190° C - 1,220° C | 1,040° C - 1,130° C | 1,000° C - 1,070° C | 1,200° C - 1,280° C | 1,210° C - 1,290° C |
| Casting Temperature | 1,400° C | 1,280° C | 1,210° C | 1,400° C | 1,400° C |
| Expansion | As Cast: 15 %
After Firing: 10 %
Hard: 7 % | As Cast: 8 %
After Firing: 8 %
Hard: 5 % | As Cast: 10 %
After Firing: 8 %
Hard: 6 % | As Cast: 24 %
After Firing: 20 %
Hard: 18 % | As Cast: 20 %
After Firing: 20 %
Hard: 15 % |
| Get Info | Not Available | Not Available | Not Available | Not Available | Not Available |