Abstract: The invention relates to a method for the digital acquisition of an intraoral structure by scanning the structure using an intraoral color scanner which, according to the invention, is designed to correct color values of the scanning points using a color reference template of a reference color space.

Abstract: The invention relates to a method for the digital acquisition of an intraoral structure by scanning the structure using an intraoral color scanner which, according to the invention, is designed to correct color values of the scanning points using a color reference template of a reference color space.

Abstract: A denture base blank a set comprising at least one denture base blank, and a method for production of a denture base for production of a total or partial denture with a subtractive CAM method, wherein the denture base blank comprises a plastic material or a wax, wherein the denture base blank is pre-formed, and wherein a dental arch or a dental arch section is pre-formed as a material thickening of the denture base blank.

Abstract: The invention relates to a dental restoration, having a base which in particular comprises an implant (1) in combination with an abutment (4), and a supraconstruction (3) which is fixed to the base, in particular by adhesive bonding, wherein the base has a screw connection having a screw head which extends over or on the base. Said screw head connects the two parts of the base to each other so as to be fixed against rotation, and has an access channel (10, 35) for the screw, the opening of which is offset with respect to the extension of the axis of the screw in the lingual direction of the supraconstruction (3). The diameter of the access channel (10, 35) is smaller than the diameter of the screw head of the screw, and the screw can be screwed through the access channel (10, 35), i.e. can be screwed in and screwed out.

Abstract: A denture base blank for the production of a denture base for a denture with a subtractive CAM method, wherein the denture base blank consists of a plastic material or a wax, wherein the denture base blank is pre-formed, and wherein a dental arch or a dental arch section is pre-formed as a material thickening of the denture base blank, and a set comprising at least one such denture base blank. The invention further relates to a method for the production of a denture base for the production of a total denture or at least a partial denture with a denture base blank according to any one of the preceding claims, comprising the following method steps: Affixing of the denture base blank in a CAM for the removal of material of the denture base blank using a CAM method, and Removal of material from the denture base blank with the CAM device on the basis of a calculated CAD model.

Abstract: The invention relates to a dental restoration, having a base which in particular comprises an implant (1) in combination with an abutment (4), and a supraconstruction (3) which is fixed to the base, in particular by adhesive bonding, wherein the base has a screw connection having a screw head which extends over or on the base. Said screw head connects the two parts of the base to each other so as to be fixed against rotation, and has an access channel (10, 35) for the screw, the opening of which is offset with respect to the extension of the axis of the screw in the lingual direction of the supraconstruction (3). The diameter of the access channel (10, 35) is smaller than the diameter of the screw head of the screw, and the screw can be screwed through the access channel (10, 35), i.e. can be screwed in and screwed out.

Abstract: A blank is provided for producing a dental prosthesis (tooth crown) comprising a mechanically processable material block and a holder connected thereto for clamping in an automatic processing tool. Said block is provided with a subgingival anatomic implant connecting part which is protrusively arranged thereon and in which an implant fixture for fixing it to the implant head is formed. The holder is arranged on the surface of the block arrangement side and the implant fixture to a surface on the implant side, thereby making it possible to work the blank by means of a computer-controlled conventional tool.

Abstract: The invention relates to an impression device and a method for three-dimensional acquisition of intraoral structures as well as a corresponding scanning device. The impression device of the invention comprises an impression sleeve, which has an open and a closed end, and at least one marker which is three-dimensional and disposed on the outside of the impression sleeve.

Abstract: A method for producing a tooth replacement and corresponding computer programs and devices are described. The method can comprise generating a tooth replacement having a core and an outer layer which define a boundary surface between each other. To ensure that the prepared tooth replacement is technically acceptable independent of skills and experience of the user and approximate the appearance of a natural tooth, the extension of the boundary surface represents a natural extension of the dentino-enamel junction of a tooth for which the tooth replacement is provided, wherein the extension of the boundary surface (i) is determined based on a recording of the dentino-enamel junction of the tooth for which the tooth replacement is provided, and/or (ii) is determined based on directly or indirectly recorded geometry data of at least a portion of the outer geometry of the tooth for which the tooth replacement is provided.

Abstract: The invention relates to a new kind of tooth replacement crown and tooth replacement bridge, of which the components are a framework and a veneer, which are reversibly connected to each other by a macro-retentive bonding system, and a method for producing the components, in which method these components are preferably produced by means of computer-aided design and computer-aided manufacturing.

Abstract: The present invention relates to an apparatus and method which makes it possible to simulate a realistic, reliable, and repeatable measurement of the mobility of a tooth and use the test results as a basis for producing and adjusting tooth prostheses. A goal is achieved by an apparatus for simulating the mobility of a tooth, comprising a bottom and a top bearing shell which are designed such that a substantially spherical zone is left open. The top bearing shell has a substantially circular cavity, through which a model of a tooth stump can be inserted. One end of the model of a tooth stump has a substantially spherical bearing zone while the other end thereof forms an elongate shank.

Abstract: A method for producing a tooth replacement and corresponding computer programs and devices are described. The method can comprise generating a tooth replacement having a core and an outer layer which define a boundary surface between each other. To ensure that the prepared tooth replacement is technically acceptable independent of skills and experience of the user and approximate the appearance of a natural tooth, the extension of the boundary surface represents a natural extension of the dentino-enamel junction of a tooth for which the tooth replacement is provided, wherein the extension of the boundary surface (i) is determined based on a recording of the dentino-enamel junction of the tooth for which the tooth replacement is provided, and/or (ii) is determined based on directly or indirectly recorded geometry data of at least a portion of the outer geometry of the tooth for which the tooth replacement is provided.

Abstract: An electromagnetic relay having a contact tongue arranged extending within a base body and switchable between two pole plates, the contact tongue having an end secured by a hard fastening adhesive, the adjustment of the contact tongue between the pole plates occurs by periodically switching an alternating excitation current during solidification of the adhesive.

Abstract: A relay formed of a coil body as a base body with a central opening passing therethrough and having an armature or contact tongue element positioned in said opening in an axial direction. One end of the tongue element is fastened and has fastening tabs at both sides of a central tongue. The fastening elements are fixed by means of a hardened glue in relatively broad grooves of a flange of the base body. During assembly, the contact tongue can be brought into a defined position by mechanical, magnetic or pneumatic means and can be fixed in this final position by means of introducing a fast-setting glue into the grooves so that subsequent adjustment is no longer necessary.

Abstract: A relay having a coil body 1 with a tongue-shaped armature mounted on the inside of the coil body and the armature is secured at one end 6a to a first coil flange 4 and its free end moveable between two pole plates 8 which are in the vicinity of the second coil flange 5. At the end where the armature 6 is fastened the coil flange 4 comprises a rim bead which together with the retaining webs 21 of the armature 6 form a planar seating surface for a sealing film 12 and at the other end of the coil flange 5 the two pole plates 8 together with spacing members of the coil body form a planar seating surface for a sealing film 9 and a good seal of the relay is obtained due to such simple structure while maintaining good magnetic coupling.

Abstract: A device for mounting an integrated circuit with two rows of terminal pins to a circuit board comprises a pair of stationary knives and a pair of movable knives, each stationary knife overlying the respective movable knife on opposite sides of a stationary anvil member. Each stationary knife is provided in the region of its cutting edge with a multiplicity of spaced parallel slots extending transversely to the cutting edge, whereby the stationary knife is formed in the region of the cutting edge with a multiplicity of cutting tabs. Each cutting tab is connected to a respective strain gauge strip in turn electrically connected to a processing or monitoring circuit by means of a multiplicity of leads. The monitoring circuit detects the electrical resistances of the strain gauge strips and thereby determines whether the corresponding cutting tab has been loaded or engaged by a terminal pin during a bending and severing operation. The monitoring circuit includes a microprocessor and a display.

Abstract: An electromagnetic relay has a tongue armature disposed inside a hollow coil body and having a free end movable between two cooperating pole plates, and a fixed end having an additional spring section disposed at an angle with respect to the movable portion of the armature, the spring section being secured to one of the coil flanges, thereby extending the effective free spring length of the armature so as to improve the sensitivity of the relay. The position of the armature with respect to the pole plates is adjustable after encapsulation of the relay by irradiating the spring section of the armature with thermal pulses, such as laser pulses at specified locations.

Abstract: An electromagnetic relay has a tongue armature disposed inside a hollow coil body substantially along the coil axis, the tongue armature having a free end movable between two cooperating pole plates and a fixed end secured to a carrier disposed in a recess in a flange of the coil body substantially perpendicular to the coil axis. The carrier includes a pair of adjustment plates which are connected by means of torsion stays to fastening tabs, the carrier being connected to the coil body at the fastening tabs. Adjustment of the tongue armature is undertaken after assembly of the relay by the application of an external magnetic field to the adjustment plates, the displacement of which permanently deforms the torsion stays so as to suitably position the tongue armature.