Aesthetic orthodontic arch wire
US5454716A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Nov 15, 1990 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Nov 15, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/20
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An orthodontic arch wire comprises a wire having the same dimensions as previously used orthodontic arch wires. The wire is coated with an opaque coating of a composite material having a thickness of no more than 35 microns, and preferably less than 12 microns. The composite material comprises a resin binder loaded with filler particles for strengthening the coating and making it approximately tooth colored. The composite coating is sufficiently adherent to the arch wire for bending from a straight wire to a curved arch wire installed in a patient's mouth while retaining the aesthetic coating, and to prevent stripping as the arch wire moves through the arch wire slot in an orthodontic bracket.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.