Abstract: The invention relates to a dental model with a base body (1) that has an essentially U-shaped dental arch (2) on its upper side. The side ridges of the dental arch (2) and/or its front ridge are or is provided with at least one dental work (4) for demonstration purposes. In order to facilitate presentations of a larger number of dental works than allowed in the dental models known until now without significantly changing the outer appearance of the model, the invention provides for the base body (1) also to have an essentially U-shaped dental arch (3) on its underside. The side ridges and/or front ridge of the U-shaped dental arch are or is likewise provided with at least one dental work (6) for demonstration purposes. Furthermore, the base body (1) is held in a supporting frame (8) in such a way that it can rotate. An upper edge (15) of the supporting frame (8) lies flush against the circumference of the base body (1) in two demonstration positions.

Abstract: The invention relates to a dental model with a base body (1), which has an essentially U-shaped dental arch (2) on its upper side. The side ridges of the dental arch and/or its front ridge are or is provided with at least one dental work (4, 5) for demonstration purposes. In order to facilitate a larger number of dental works than allowed in the dental models known until now without significantly changing the outer appearance of the model, the invention provides for the base body (1) also to have an essentially U-shaped dental arch (3) on its underside, whereby the side ridges and/or front ridge of this dental arch (3) are or is likewise provided with at least one dental work (6) for demonstration purposes. Furthermore, a base (7) with a recess (8) for holding that dental arch which is not being demonstrated is assigned to the base body (1).

Abstract: A jaw model for demonstration purposes has interchangeable spare parts (4). The base (1) of the jaw model is provided with compartments (11) for storing the spare parts (4).

Abstract: In a jaw model for demonstrating dental work, anchoring parts (2) designed as imitation tooth stumps and guided in bore holes (10) of a main body (1) are used for securing the workpieces which consist in particular of individual teeth or bridges. To be able to quickly adapt the position and number of the post-shaped anchoring parts (2) to different demonstration conditions, the anchoring parts (2) are spring-mounted in the bore holes (10) so that they can be easily transferred from a first locked position, in which their end is flush with the surface of the main body (1), into a second locked position in which they can be used for securing the respective workpiece.

Abstract: A jaw model for teaching and instruction purposes has at least one insert mounted in a recess of a mandibular arch. The insert is elongated in one dimension, and is movable into a functional position by rotation about a socket pin which is oriented substantially perpendicular to the elongated dimension of the insert. The socket pin is rotatably mounted, and within predetermined limits, longitudinally movable in a guide hole provided in a tongue or gum part of the jaw model.

Abstract: In a jaw model, the jaw arch (2) is provided with a recess (4), which is arranged rotatably an insert part (5) carrying, on sides located opposite one another, different tooth or artificial tooth shapes (7,8) which can be moved into the particular correct position by rotating the insert part.