Dental articulator with condyle strain indication
US5257932A · kind A · utility
Inventors
Key dates
| Filing date | Oct 9, 1991 |
| Grant date | Nov 2, 1993 |
| Priority date | — |
| Expiry date | Oct 9, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C11/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A jaw model articulator clearly identifies condyle joint strain as well as fully emulates a patient's straight bite and cross bite. The spatial relationship of the upper and lower jaws with respect to the condyle joints and to each other is accurately determined by just two wax bite impressions taken of the patient. No extraneous mechanical hardware needs to be attached to the patient's head. The two wax impressions are sequentially inserted between the upper and lower jaw models. The resulting change in the models relative positions are measured and the values inputted to a desk top personal computer. The computer calculates the precise location of the rotational axis defined by the condyle joints, and the articulator is set up accordingly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.