PROCESS AND MARKING DEVICE FOR PROJECTING DENTISTRY MASTICATORY SURFACES IN DENTISTRY

摘要

A method and a device for marking on chewing surfaces, in dentistry, transverse and longitudinal cracks of crown molds by means of a simple mechanical device. The described marking device (1) comprises at least one support branch (2) and at least one working branch (3) between which a determined angle is defined. The advantage of the marking device (1) is that it can rest on an articulated part of an articulator, so that the center of rotation of the marking device (1) is located at the right from the geometric center point of the condylar sphere to the axis of an articulator hinge. Longitudinal cracks can thus be marked on models by having an almost circular orbit described at an outer end of the working branch (2), the center of which is the central point of the condylar sphere opposite an articulation of the articulator. Transverse cracks can be marked by making describe at the outer end of the working branch (2) an almost circular arc whose center is the central point of the condylar sphere on the same side of the articulation of the articulator. The invention has the particular advantage of making it possible to take into account the Benett offset during marking by means of a guide branch (23) which can pivot coaxially.