Preparation for being fastened on a natural tooth part or tooth and corresponding fastening method
US6955540B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | Oct 18, 2005 |
| Priority date | — |
| Expiry date | Nov 18, 2023 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2210/0071
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A preparation (10, 11,12,13) to be fixed to a natural tooth part or tooth, in particular for the replacement of a load-bearing tooth part, is for example a filling for a drilled-out tooth (1), a crown, bridge or prosthesis to be placed on a tooth stub, or a tooth pin to be fixed in a tooth root for fastening an artificial tooth, a bridge or a prosthesis. The preparation has surface regions which consist of a material with thermoplastic properties. The preparation (10, 11, 12,13) is designed in a manner such that it has oscillation properties with such low damping losses that for a liquefaction of the material with thermoplastic properties by way of oscillations there are local stress concentrations required, and in a manner such that such stress concentrations only occur in the region of the preparation surface. The preparation is positioned on a suitably prepared natural tooth part in a manner such that the material with the thermoplastic properties is in contact or may be brought into contact with the dentin surface and/or enamel surface. The preparation is then made to mechanically oscillate and is simultaneously pressed against the natural tooth part, whereby the material with …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.