Dental restoration, method for its production and ingot
US-9730863-B2 · Aug 15, 2017 · US
Lithium disilicate glass-ceramic, method for production thereof and use thereof
US10765496B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-10765496-B2 |
| Application number | US-201816227429-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 20, 2018 |
| Priority date | Dec 23, 2009 |
| Publication date | Sep 8, 2020 |
| Grant date | Sep 8, 2020 |
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- Title
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Abstract
Official abstract text for this publication.
The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
First claim
Opening claim text (preview).
The invention claimed is: 1. A lithium silicate glass ceramic that includes at least 10 wt % ZrO 2 , from 55 to 70 wt % SiO 2 , and from 10 to 15 wt % LiO 2 and having a main crystal phase consisting of lithium disilicate crystal. 2. Lithium silicate glass ceramic of claim 1 , which is in the form of a dental restoration.
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Classifications
Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles {(C03B27/012 takes precedence)} · CPC title
- C03C10/00Primary
Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition · CPC title
Dental prostheses; Making same (tooth crowns for capping teeth A61C5/70; dental implants A61C8/00) · CPC title
After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone (conditioning of the materials prior to shaping C04B40/00; applying liquids or other fluent materials to surfaces, in general B05; grinding or polishing B24; apparatus or processes for treating or working shaped articles of clay or other ceramic compositions, slag or mixtures containing cementitious material B28B11/00; working stone or stone-like materials B28D; glazes, other than cold glazes, C03C8/00; etching, surface-brightening or pickling compositions C09K13/00) · CPC title
- A61K6/818Primary
comprising zirconium oxide · CPC title
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- What does patent US10765496B2 cover?
- The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according …
- Who is the assignee on this patent?
- Fraunhofer Ges Forschung, Vita Zahnfabrik H Rauter Gmbh & Co Kg, Degudent Gmbh, and 1 more
- What technology area does this patent fall under?
- Primary CPC classification C03C10/00. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 08 2020 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 7 related publications on this page (citations in our corpus or others sharing the same primary CPC).