Abstract: An injection correction impression tray (18) serves for producing dental impressions for the subsequent manufacture of crowns, bridges and other dental prostheses. The tray (18) includes a base body (23) containing impression material and a profile bottom plate (27). The plate (27) includes a first channel (41) and a second channel (43) being arranged in the bottom side of the plate (27). The plate (27) is connected to the base body (23) in a way to close the bottom opening (6) of the tray (18) and such that the bottom side and the channels (41, 43) face the interior of the base body (23). The first channel (41) forms a rib of a first impression material being introduced into the interior of the base body (23) and flowing through the bottom opening (6) into the first channel (41).

Abstract: An injection correction impression tray (18) serves for producing dental impressions for the subsequent manufacture of crowns, bridges and other dental prostheses. The tray (18) includes a base body (23) containing impression material and a profile bottom plate (27). The plate (27) includes a first channel (41) and a second channel (43) being arranged in the bottom side of the plate (27). The plate (27) is connected to the base body (23) in a way to close the bottom opening (6) of the tray (18) and such that the bottom side and the channels (41, 43) face the interior of the base body (23). The first channel (41) forms a rib of a first impression material being introduced into the interior of the base body (23) and flowing through the bottom opening (6) into the first channel (41).

Abstract: An apparatus serves to produce dental impressions for the subsequent manufacture of crowns, bridges and other dental prostheses. The apparatus serves to produce so called injection correction impressions of teeth contained in a jaw. The apparatus includes an injection correction impression tray having an interior for containing impression material. The tray includes a bottom opening. The apparatus further includes a bottom plate having a top side and a protrusion. The bottom plate is connectable to the tray in a way that the protrusion protrudes into the interior of the tray to form an injection channel for a correction impression material.

Abstract: An apparatus serves to prepare at least one tooth (1) for receiving a dental element such as a crown, bridge and the like using a mould model (21) at least including one model tooth (23). The apparatus includes at least one positioning body (5), at least one parallelizing body (24), a mould spoon (12) including threaded sockets (17) and removable segments (20), a preparation base bar (46) including sliding elements (53), a tub (72), a transmitting unit (35), a transport arm mechanism (57), at least one unit (66) including position stabilizing arms (67), a plurality of model transfer bodies (78), and a copying grinding unit (90).

Abstract: An apparatus serves to prepare at least one tooth (1) for receiving a dental element such as a crown, bridge and the like using a mould model (21) at least including one model tooth (23). The apparatus includes at least one positioning body (5), at least one parallelizing body (24), a mould spoon (12) including threaded sockets (17) and removable segments (20), a preparation base bar (46) including sliding elements (53), a tub (72), a transmitting unit (35), a transport arm mechanism (57), at least one unit (66) including position stabilizing arms (67), a plurality of model transfer bodies (78), and a copying grinding unit (90).