Lithium silicate glasses or glass ceramics, method for production thereof and use thereof
US-2015376053-A1 · Dec 31, 2015 · US
Method for producing dental prosthesis, method for producing lithium disilicate blank for dental prosthesis and lithium disilicate blank for dental prosthesis
US2016287361A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2016287361-A1 |
| Application number | US-201514892078-A |
| Country | US |
| Kind code | A1 |
| Filing date | Jul 8, 2015 |
| Priority date | Aug 27, 2014 |
| Publication date | Oct 6, 2016 |
| Grant date | — |
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Abstract
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Provided is a method for quickly producing a dental prosthesis with a good accuracy. The method for producing a dental prosthesis including: a melting step of melting a material including no less than 60.0 mass % and no more than 80.0 mass % of SiO 2 , no less than 10.0 mass % and no more than 20.0 mass % of Li 2 O, and no less than 5.1 mass % and no more than 10.0 mass % of Al 2 O 3 ; a glass blank production step of cooling to solidify the molten material to obtain a glass blank; a lithium disilicate blank production step of heating the glass blank to obtain a lithium disilicate blank whose main crystalline phase is lithium disilicate; and a processing step of processing the lithium disilicate by machining.
First claim
Opening claim text (preview).
1 . A method for producing a dental prosthesis comprising: a melting step of melting a material comprising no less than 60.0 mass % and no more than 80.0 mass % of SiO 2 , no less than 10.0 mass % and no more than 20.0 mass % of Li 2 O, and no less than 5.1 mass % and no more than 10.0 mass % of Al 2 O 3 ; a glass blank production step of cooling to solidify the molten material to obtain a glass blank; a lithium disilicate blank production step of heating the glass blank to obtain a lithium disilicate blank whose main crystalline phase is lithium disilicate; and a processing step of processing the lithium disilicate blank by machining. 2 . The method for producing a dental prosthesis according to claim 1 , wherein the machining is a cutting work. 3 . A method for producing a lithium disilicate blank for a dental prosthesis, the blank to be machined into a shape of a dental prosthesis, the method comprising: a melting step of melting a material comprising no less than 60.0 mass % and no more than 80.0 mass % of SiO 2 , no less than 10.0 mass % and no more than 20.0 mass % of Li 2 O, and no less than 5.1 mass % and no more than 10.0 mass % of Al 2 O 3 ; a glass blank production step of cooling to solidify the molten material to obtain a glass blank; and a lithium disilicate blank production step of heating the glass blank to obtain a lithium disilicate blank whose main crystalline phase is lithium disilicate. 4 . A lithium disilicate blank for a dental prosthesis to be machined into a shape of a dental prosthesis, the lithium disilicate blank comprising no less than 60.0 mass % and no more than 80.0 mass % of SiO 2 , no less than 10.0 mass % and no more than 20.0 mass % of Li 2 O, and no less than 5.1 mass % and no more than 10.0 mass % of Al 2 O 3 . 5 . The lithium disilicate blank for a dental prosthesis according to claim 4 , whose main crystalline phase is lithium disilicate.
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Classifications
Glass-ceramic composites · CPC title
comprising non-metallic elements or compounds thereof, e.g. carbon · CPC title
Silicates · CPC title
- A61C13/083Primary
Porcelain or ceramic teeth {(A61C13/081 takes precedence; preparations A61K6/80)} · CPC title
containing SiO2, Al2O3, Li2O as main constituents · CPC title
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- What does patent US2016287361A1 cover?
- Provided is a method for quickly producing a dental prosthesis with a good accuracy. The method for producing a dental prosthesis including: a melting step of melting a material including no less than 60.0 mass % and no more than 80.0 mass % of SiO 2 , no less than 10.0 mass % and no more than 20.0 mass % of Li 2 O, and no less than 5.1 mass % and no more than 10.0 mass % of Al 2 O 3 ; a …
- Who is the assignee on this patent?
- G C Dental Ind Corp
- What technology area does this patent fall under?
- Primary CPC classification A61C13/083. Mapped technology areas include Human Necessities.
- When was this patent published?
- Publication date Thu Oct 06 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). 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).