Debonding instrument for orthodontic brackets
US5062793A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1989 |
| Grant date | Nov 5, 1991 |
| Priority date | — |
| Expiry date | Sep 8, 2009 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/023
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An instrument for debonding orthodontic brackets from teeth has a pair of arms with pulling sections adapted to engage the bracket behind occlusal and gingival tie wings. The arms are connected to a lever, and movement of the lever enables the arms to simultaneously exert a pulling force on both of the wings along substantially their entire mesial-distal width in order to lift the bracket from the tooth in straight-line fashion. A pair of reaction supports for engagement with the tooth during the debonding operation extend in an occlusal-gingival direction and have a length less than the occlusal-gingival height of the bracket so that the instrument can be rocked to ensure that the pulling sections are in firm contact with the bracket during the time that the bracket is debonded from the tooth.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.