Dental material set and a dental membrane for obscuring a metal color of a dental metal, and a preparing method thereof
US9427379B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 24, 2014 |
| Grant date | Aug 30, 2016 |
| Priority date | — |
| Expiry date | Aug 26, 2034 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/17
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Provided are opaque materials exhibiting a good adhesive strength and a good color tone reproduction comparable with natural dental crowns as well as having a good operability. In addition, the opaque materials may exhibit a stain-resistance property in rebuilding-up a dental composition on the opaque materials in a cured form with a metal instrument. Further, the opaque materials may exhibit a good color tone reproduction comparable with natural dental crowns even if a dental membrane is thinly formed from the opaque metals. The dental membrane is formed from a first opaque layer and a second opaque layer, wherein the first opaque layer contains a filler of indefinite-shape particles and the second opaque layer contains a filler of spherical-shape particles, and wherein the first opaque layer is formed on a metal base and the second opaque layer is formed on the first opaque layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.