Addressable matrices/cluster blanks for dental cad/cam systems and optimization thereof
US-2017239024-A1 · Aug 24, 2017 · US
Palladium based alloys
US10123858B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10123858-B2 |
| Application number | US-201314381145-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 8, 2013 |
| Priority date | Mar 9, 2012 |
| Publication date | Nov 13, 2018 |
| Grant date | Nov 13, 2018 |
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Abstract
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A palladium-based alloy having a coefficient of thermal expansion (CTE) of about 12.0 to about 13.0 and having one or more of the following additive metals: platinum, gallium, molybdenum, tin, silicon, ruthenium, rhenium, indium, tungsten, niobium, boron and lithium.
First claim
Opening claim text (preview).
We claim: 1. A dental article comprising: a non-magnetic dental alloy substrate free of gold, copper, and silver consisting essentially of palladium, platinum, gallium, molybdenum, ruthenium and rhenium and optionally one or more of tin, silicon, indium, niobium, tantalum, tungsten, boron, and lithium and having a CTE in the range of about 11.5 to about 13.0×10 −6 /° C. at 25-500° C.; and a ceramic or glass ceramic having a CTE in the range of about 8.0 to about 13×10 −6 /° C. at 25-500° C. pressed onto the dental alloy substrate. 2. The dental article of claim 1 , wherein the CTE of the dental alloy is in the range of about 12 to about 13.0×10 −6 /° C. at 25-500° C. 3. The dental article of claim 1 , wherein the CTE of the ceramic or glass ceramic is in the range of about 12 to about 12.80×10 −6 /° C. at 25-500° C. 4. The dental article of claim 1 , wherein the ceramic or glass ceramic comprises lithium silicate. 5. The dental article of claim 4 , wherein the lithium silicate comprises lithium metasilicate, lithium disilicate or a mixture thereof. 6. The dental article of claim 5 fabricated as a crown, bridge, veneer, inlay, onlay, partial crown, fixed partial denture, implant abutment, implant, orthodontic appliance, space maintainer, tooth replacement appliance, splint, dentures, post, teeth, jacket, facing, veneer, facet, cylinder, or connector.
Assignees
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Classifications
Glass-ceramic composites · CPC title
comprising metals or alloys · CPC title
Noble metals · CPC title
Protective coatings for natural or artificial teeth, e.g. sealings, dye coatings or varnish · CPC title
including components having same physical characteristic in differing degree · CPC title
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- What does patent US10123858B2 cover?
- A palladium-based alloy having a coefficient of thermal expansion (CTE) of about 12.0 to about 13.0 and having one or more of the following additive metals: platinum, gallium, molybdenum, tin, silicon, ruthenium, rhenium, indium, tungsten, niobium, boron and lithium.
- Who is the assignee on this patent?
- Ivoclar Vivadent Ag, Ivoclar Vivadent Inc
- What technology area does this patent fall under?
- Primary CPC classification A61C13/08. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Tue Nov 13 2018 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).