Orthodontic appliance
US4299568A · kind A · utility
Inventor
Key dates
| Filing date | Jun 13, 1980 |
| Grant date | Nov 10, 1981 |
| Priority date | — |
| Expiry date | Jun 13, 2000 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C7/10
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A dual function orthodontic appliance which permits the orthodontist a wide variety of treatment options in repositioning the teeth to achieve the most orthodontically desirable positions and in maintaining the repositioned teeth in the desired positions is provided. The orthodontic appliance of the present invention includes a palatal overlay molded to conform to the contours of the patient's hard plate and to fit securely against the gingival edge of the lingual surface of the teeth, a pair of posteriorly positioned opposed clasps, and a pair of opposed, spaced retaining and positioning wires which cross over the anterior teeth for a distance necessary to achieve the desired positioning or retaining effect. The orthodontic appliance of the present invention may be adapted to treat the lower teeth by providing in place of the palatal overlay a gingival overlay molded to conform to the periodontal structures on the lingual side of the lower teeth. An additional embodiment provided includes a single continuous substantially horizontal retaining wire having at least one preferably centrally positioned inverted U-shaped adjustment loop which may be clipped to convert the single wire a…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.