Abstract: The present invention relates to an apparatus to register the movements of the lower jaw with reference to the skull, substantially comprising an adjustable upper registering yoke anchored to the bridge of the nose and the cheeks with a nasion profile roller for the record plates and the reference indicator on the one hand and the lower registering yoke which is attached by plastering through the intermediary of a spoon to the movable lower jaw on the other hand. The apparatus according to the invention is characterized in that the lower registering yoke exhibits on both side arms which are attached to the cross-bar, holes, into which a recording and measuring device is inserted which is in contact by its registering stylus in the previously determined hinge axis points of the lower jaw either against the left-hand or the right-hand record plate which are attached to the upper registering yoke and permits a continual registration of the movements in all three planes, i.e.

Abstract: A mounting plate is provided for use with a dental articulator. The mounting plate includes a plate member including a plurality of raised webs formed on the upper surface of the mounting plate and a plurality of raised support members formed on the lower surface of the mounting plate. The plate member further includes a threaded bore and a pair of depressions formed in the lower surface of the plate member, the depressions being located on opposite sides of the threaded bore in alignment therewith. At least one sidewall of the one of the depressions is elastic and the raised webs are dovetailed in cross section. The support members on the lower surface of the plate member are arranged in a honeycomb pattern.

Abstract: This invention relates a dental articulator comprising substantially a lower frame portion with means for securing the mounting plate for the lower jaw model and a supporting platform for the incisor guide pin, a vertical frame portion rigidly connected to the lower frame portion and having two balls serving as condyles which are mounted on two supporting stems, and an upper frame portion with the two radially rotatable ball sockets serving as fossae and including a rear ball guiding means and an inner ball guiding means angularly adjustable relative to the rear ball guiding means, the bearing shaft, the means for securing the mounting plate for the upper jaw model, and an adjustable incisor guide pin, in which the inner ball guiding means angularly adjustable relative to the rear ball guiding means constitutes an exchangeable, optionally grindable segment of a circle bearing against the circular inner wall of the ball socket, and a lockable slide serves to lock the ball in the corner formed by the rear ball