Abstract: An articulator for dentistry comprises a base plate, an extension plate arranged at a distance from the base plate, a frame including two parallel columns and a traverse turnably supported between the columns at a distance from the base plate. The base plate and the extension plate forming mold supports. The frame has a frame opening. A pin-shaped connecting element fixes the mold supports on the frame and extends partially through the mold opening with a radial play so as to form an intermediate space between the pin-shaped connecting element and a wall of the frame opening, and a hardenable material fills the intermediate space.

Abstract: A supporting plate for a denture model includes a cheek-side portion and a tongue-side portion spaced from each other to define a groove therebetween and connected to each other by flexible pivotable webs so that the distance between those portions is changeable whereby an unavoidable expansion of a model material is compensated for by a change of the shape of the supporting plate.

Abstract: A method of manufacturing of artificial teeth, in which a primary and a secondary part of the artificial tooth or the denture are preformed, then grooves for receiving a connecting element are produced in both parts by sparking erosion, and the connecting element is inserted thereafter into the secondary and primary parts. In order to precisely align the grooves in both parts of the denture those grooves may be formed by sparking erosion in one working step.

Abstract: A denture mold for making teeth prostheses has a base element for releasably supporting a positive copy of teeth and made of a mold material, and a plurality of pins arranged to connect the positive copy with the base element, wherein the base element is formed as a prefabricated plate of a shape-retaining material and the pins are releasably arranged on the plate parallel to one another and fixed on the same, so that the plate serves as a holder for the pins during making of the positive copy, whereupon the plate serves as a base of the denture mold. The denture mold is manufactured by releasably arranging a plurality of pins on the plate in correspondence with a negative denture impression, filling the negative denture impression with a mold material, dipping the pins into the mold material, and hardening the latter to form a positive copy of the teeth.