Dental restoration shading
US4650418A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Apr 17, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C5/77
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A new type of dental prosthetic facing and a new method of preparation of dental prosthetic facings is disclosed. The dental prosthetic facing is provided with an outer shader layer, an intermediate at least substantially uncolored, translucent layer, and an opaque substructure color keyed with the shader layer to match a shade guide. The opaque substructure may be a metal support with a surface opaquing agent in one species. The dental prosthetic facing may be prepared by removably mounting an intermediate uncolored translucent layer that is a crown on a color keyed opaque substructure that is a dental mount. The dental mount being matched to an opaque dental cement that will mount the finished shaded dental crown.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.