Methods of making orthodontic appliances
US7641828B2 · kind B2 · utility
91Cited by
4References
39Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 12, 2004 |
| Grant date | Jan 5, 2010 |
| Priority date | — |
| Expiry date | Jan 26, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F2/46
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Methods of making a removable dental positioning appliance include forming a sheet of transparent crystalline polymeric material into a shell having cavities shaped to receive and reposition teeth from a first orientation to a successive orientation. The polymeric material may then be annealed at a temperature above its glass transition temperature or cured if a curable material to enhance characteristics of the polymeric material. The polymeric material may be coated with a second transparent material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.