Dental crown and bridge alloys are used for casting full contour crowns and bridges. These alloys are generally created from noble and high noble metals with gold colored crowns the most popular. Different alloys are designed with different levels of hardness with softer alloys better suited for smaller restorations such as inlays and onlays, while harder alloys are better suited for crowns and bridges. Casting with crown and bridge 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 | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. |
| Item | Midigold 50 Crown and Bridge Alloy | Harmony 3 Crown and Bridge Alloy |
| Price | Inquire | Inquire |
| Description | Midigold 50 is a reduced gold crown and bridge alloy demonstrating outstanding properties. | Harmony 3 contains 3.5% gold and is a noble alternative to the gold-free base metal casting alloys. What is more, it is very economical due to its low |
| Composition | Gold: 50 %
Palladium: 3.5 %
Silver: 35 %
Copper: 9.5 %
Indium: 2 %
Iridium: Less Than 1 % | Gold: 3.5 %
Palladium: 25.9 %
Silver: 50.8 %
Copper: 13.8 %
Tin: 4.5 %
Zinc: 1.2 %
Rhenium: 1 %
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| Hardness | 180 HV | 230 HV |
| Tensile Strength | 470 N/mm2 | 102 N/mm2 |
| Indications for Use | Onlays
3/4 Crowns
Crowns
Telescope And Conus Crowns
Posts
Short And Long Span Bridges
Implant Superstructure | Inlays
Onlays
3/4 Crowns
Crowns
Telescope And Conus Crowns
Posts
Short And Long Span Bridges |
| Color | Yellow | White |
| Melting Interval | 825° C - 915° C | 880° C - 960° C |
| Casting Temperature | 970° C - 1,030° C | 1,020° C - 1,050° C |
| Expansion | 6 % | 14 % |
| Get Info | Inquire | Inquire |