Porcelain alloys are used to fabricate copings and other substructures for crowns and bridges. These metals are cast to create a strong and properly fitting base to support an esthetic porcelain fused to metal (PFM) crown or bridge. A wide range of high noble, noble and base metal compositions can be used for fabricating PFM substructures, so there are numerous alloys that can be used. When considering a porcelain alloy it is important to consider how well the alloy bonds with your prefered ceramic system. Other key attributes of these materials are their specific working properties for casting, along with color and esthetic qualities.
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| Company | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. | Ivoclar Vivadent Inc. |
| Item | W Porcelain Alloy | 4all Porcelain Alloy | BioUniversal Porcelain Alloy | Capricorn 15 Porcelain Alloy | Capricorn Porcelain Alloy |
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| Description | W is a clinically proven reduced gold ceramic alloy demonstrating outstanding properties. | 4all is a nickel-chromium ceramic alloy. Its mechanical and physical properties have been coordinated with conventional feldspar ceramics. | BioUniversal is a gold-reduced universal alloy for veneering applications involving special ceramic and composite materials. | Capricorn 15 is a palladium-silver alloy with coordinated mechanical and physical properties for conventional feldspar ceramics. | Capricorn is a palladium-based ceramic alloy demonstrating outstanding properties. |
| Composition | Gold: 54 %
Palladium: 26.4 %
Silver: 15.5 %
Tin: 2.5 %
Indium: 1.5 %
Ruthenium: Less Than 1 %
Rhenium: Less Than 1 %
Lithium: Less Than 1 % | Nickle: 61.4 %
Chromium: 25.7 %
Molybdenum: 11 %
Silicon: 1.5 %
Manganese: Less Than 1 %
Aluminum: Less Than 1 %
Carbon: Less Than 1 % | Gold: 59.4 %
Silver: 25.5 %
Paladium: 9.5 %
Platinum: 2 %
Zinc: 2 %
Tin: Less Than 1 %
Iron: Less Than 1 %
Rhenium: Less Than 1 %
Ruthenium: Less Than 1 % | Gold: 15 %
Palladium: 51.9 %
Silver: 23 %
Indium: 8 %
Gallium: 2 %
Rhenium: Less Than 1 %
Ruthenium: Less Than 1 % | Palladium: 78.1 %
Indium: 6.5 %
Gallium: 6 %
Gold: 6 %
Silver: 3 %
Ruthenium: Less Than 1 %
Rhenium: Less Than 1 %
Lithium: Less Than 1 % |
| Hardness | 220 HV | 235 HV | 225 HV | 255 HV | 260 HV |
| Tensile Strength | 1,330 N/mm2 | Not Available | 103 N/mm2 | 101 N/mm2 | 97 N/mm2 |
| Indications for Use | Inlays
Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges | Single Crowns
Telescope And Conus Crowns
Root Canal Posts
Short And Long Span Bridges | Inlays
Onlays
3/4 Crowns
Crowns
Telescope And Conus Crowns
PFM Crowns
Posts
Short And Long Span Bridges
Implant Superstructures | Onlays
Partial Crowns
Single Crowns
Telescope And Conus Crowns
Posts
Short And Long Span Bridges
Implant Superstructures
Partial Dentures | Onlays
Inlays
3/4 Crowns
Crowns
Telescope And Conus Crowns
PFM Crowns
Posts
Short And Long Span Bridges
Implant Superstructures
Partial Dentures |
| Color | White | White | Yellow | White | White |
| Compatible Porcelains | Not Available | Not Available | Low Fusing Ceramics
Composite Veneering Materials | IPS Classic And Conventional Ceramics | Not Available |
| Melting Interval | 1,230° C - 1,280° C | 1,260° C - 1,350° C | 1,020° C - 1,100° C | 1,230° C - 1,310° C | 1,170° C - 1,335° C |
| Casting Temperature | 1,330° C - 1,390° C | 1,405° C - 1,465° C | 1,155° C - 1,215° C | 1,365° C - 1,425° C | 1,390° C - 1,450° C |
| Expansion | 21 % | 12 % | 6 % | 21 % | 33 % |
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