Dental apparatus and method of use

Details Dental apparatus and method of use Dental apparatus and method of use

1984-02-14

1985-09-24

Peshock, Robert

Dentistry

Apparatus

Having means to record or indicate jaw movement or position...

433 42, 433214, A61C 900

Patent

active

045430624

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 analyzing jaw movements. Novel selector elements are mounted in the upper frame of the articulator while using the lateral check bite records, with the selectors being used to measure lateral side shift and angular orientation. This information is utilized to select a proper set of preformed analog guide blocks to use in the articulator.

REFERENCES:
patent: 2239294 (1941-04-01), Opotow
patent: 2548817 (1951-04-01), Raiche
patent: 3207153 (1965-09-01), Goldstein

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