Method for making orthodontic appliance having textured bonding surface
US5393486A · kind A · utility
13Cited by
15References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 9, 1993 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Dec 9, 2013 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/14
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A method of making an orthodontic appliance such as a bracket includes the step of forming a preform of molding material while a portion of the molding material is in contact with a textured portion of a web. The web is subsequently degraded by a thermal or solvent degrading process to leave a witness impression on the underside of the preform. The web optionally serves as a conveyor to move the preform from one processing area to another, and optionally has the appearance of a woven material such that the resulting appliance resembles a mesh base appliance having undercut regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.