Appts. for measuring lower jaw movements - works in relation to skull with printer displaceable transversally on recording sheet

摘要

The printer can move transversally on a recording sheet (2) fixed to the lower jaw and located on a printing plate arranged on a flag sheet fitted to the skull in the region of the hinge axis of the jaw joint parallel to the sagittal and cranial-caudal direction. The printer locates on the hinge axis. A second printer (7) is displaceably arranged for transverse movement parallel to the first. It can move on a second printing plate (8) parallel to the plane of the recording sheet. It is displaceable with a translatory movement between the first printer and the first printing plate. USE - In dental practice, to take lower jaw movement measurements preparatory to the prodn. of dentures.