Electronic register device for recording jaw movements

Abstract

An electronic register device for recording movements of the lower jaw of a person relative to the upper jaw of the person, the device having a bite fork for recording a position of the upper jaw relative to reference points on the head of the person, wherein the bite fork is designed to receive a plastic compound for recording an impression of the dentition of the upper jaw. The register device further includes a lower-jaw attachment for recording movements of the lower jaw relative to the upper jaw. In addition, the register device has a reference body, wherein the register device is designed so that the reference body can be connected in a fixed position to the bite fork. The bite fork and the reference body connected thereto in a fixed position are designed in such a way that both the impression and also the reference body can be recorded by a scanning procedure. In this way, it is possible to establish a relationship between the scanned impression and the movement data recorded by the register device. By this means, it is possible to determine adjustment values for a virtual articulator without having to produce plaster models of the dentition of the upper jaw and lower jaw. In addition, the register device according to the invention allows three-dimensional data of an X-ray system to be superposed with the movement data of the register device. This facilitates the production of drill jigs in implantology.