Dental apparatus and method of use
US4693683A · kind A · utility
Inventor
Key dates
| Filing date | Aug 12, 1985 |
| Grant date | Sep 15, 1987 |
| Priority date | — |
| Expiry date | Aug 12, 2005 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61C9/00
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A tray for making dental check bite records is provided with a U-shaped bite section and a raised central arch. The tray is formed of stiff but deformable metal, which is perforated in the bite section to facilitate the adherence of dental impression paste. A flange on the front of the tray facilitates centering of the tray in the patient's mouth, and serrations on the edges of the tray provide convenient gripping areas when handling the tray. A check bite record is made with each tray. After first hardening an impression of the upper teeth on the tray, a glob of quicksetting impression material is positioned on the lower side of the tray to register on a lower anterior tooth. The impression in the hardened glob is then used as a pivot point to position a patient's jaw, while slower setting material is on the tray lower surface is hardening, providing an impression of the patient's lower posterior teeth in a preferred lateral position. These check bite records are then used in combination with dental casts mounted in a dental articulator to properly set the articulator in a manner to simulate the patient's jaw movements while observing the construction of the dental cast and analyz…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.