Abstract: A blank holder and a blank are provided, the blank holder having a receiving area for a substantially disc-shaped blank, the receiving area being curved. The receiving area forms a straight, circular or part-circular or arc-shaped form-fitting profile. The blank has a matching guide shell which can be inserted or turned into the form-fitting profile.

Abstract: A vacuum film (100) for scanning an oral cavity (101), having a perforation layer (103); a fiber layer (105) arranged on the perforation layer (103); and a texture layer (107) arranged on the fiber layer (105).

Abstract: A saliva suction device is provided comprising a plastic injection-molded part which configures a coupling for connection to a suction hose, possibly via an adapter, and is plugged on the suction hose or connected to the suction hose in another manner and particularly configures a lingual shield. A first suction channel extends through the molded part. A massive, i.e. non-porous, soft body is plugged on or at the plastic molded part and connected to the molded part in a form-fitting manner, through which soft body a second suction channel extends which is vertically offset relative to the first suction channel. Particularly on the side of the second suction channel, which is opposite the first suction channel, a suction area with at least one suction opening for saliva is configured in the soft body.

Abstract: A film tensioning element is provided for dental applications with a film extending between tensioning rings. The film has a modulus of elasticity of less than 2 KN/mm2. The film is made of a tough plastic with a modulus of elasticity of more than 1 KN/mm2, in particular of PP, or optionally of PA. The film tensioning element is manufactured together with the tensioning rings.

Abstract: A dental cartridge, in particular for insertion into an injector, is configured with a cylinder body with a gripping shoulder at a first end face and with a cylinder chamber into which dental material can be filled, with a dispensing nozzle which is arranged on a second end face of the cylinder body opposite the gripping shoulder, wherein the cylinder body and the dispensing nozzle are connected via a joint. The joint is formed with a joint head in the form of a ball as part of the dispensing nozzle and with a complementary joint socket as part of the cylinder body at the second end face. The dispensing nozzle is swiveled in relation to the cylinder body in a swivel range about three axes x-y-z.

Abstract: A blank holder and a blank are provided, the blank holder having a receiving area for a substantially disc-shaped blank, the receiving area being curved. The receiving area forms a straight, circular or part-circular or arc-shaped form-fitting profile. The blank has a matching guide shell which can be inserted or turned into the form-fitting profile.

Abstract: A saliva aspirator having an injection moulded plastic component forming a coupling for connection to a suction hose, optionally via an adapter. A plastic moulded part is manufactured as a multi-component injection moulded part and forms a plastic component which is harder than another plastic component, the hard component, the coupling and optionally the adapter. The other plastic component, the soft or flexible component, forms a suction area with at least one suction opening or suction pore for saliva and an outlet opening towards the suction hose and consists in particular of an open-pored, preferably thermoplastic, elastomer.

Abstract: A lip/cheek retainer particularly suitable for use with an intraoral scanner is provided, having a film made from an elastomer, a lip ring and a vestibular ring, with the film extending between the lip ring and the vestibular ring, being held taut by these and forming a tubular section between them. It is provided that the film (20) is prefabricated on the inner side (32) of its tubular section with a sliding element (36), in particular altering the surface of the film (20) there, produced by a surface treatment and firmly bonded to the film (20), with a sliding friction coefficient ?G of less than 1.5, preferably less than 1.

Abstract: A suction ring for mounting close to the mouth opening of a dental patient, comprising an extraoral tensioning element. The tensioning element is realised as a suction tensioning element and forms or spans a negative pressure space with a film element. The negative pressure space extends annularly or partially annularly, and the negative pressure space has at least one suction nozzle, in particular pointing radially inwards.

Abstract: A film tensioning element (10), with a lip ring (14) and a vestibular ring (16), between which, and possibly beyond which, a film (12) extends, wherein at least the vestibular ring (16) and/or the lip ring (14) is filled with a gas under pressure.

Abstract: The invention relates to a round dental blank holder (10), in particular with a holding undercut. The holder (10) consists of two parts (12, 14), which in particular are semi-circular and can be connected to each other or mounted on each other, which are intended to surround a round dental blank (16), thereby fixing it, and/or to mount it without play, in particular to fix it in a non-positive and/or form-fitting manner.

Abstract: The invention relates to a round dental blank holding ring, in particular having a holding projection (22) forming an undercut, wherein the holding ring (10) consists of at least two components (26, 28), the harder one of which overlaps the softer one.

Abstract: The invention relates to a film tensioning element (10), in particular for performing dental operations in a patient's oral cavity, comprising a vestibular ring (16) and a lip ring (14) between which and optionally beyond which a film (12) extends, in particular substantially in a ring shape or hose shape, said film being held tensioned by the rings (14, 16), the film (12) and the rings (14, 16) being resiliently deformable. The film (12) has a radially inwardly extending constriction (18), at least in a region, in the progression between the lip ring (14) and vestibular ring (16), the film (12), at least in said region, extending without tension and in a single piece between the radially inwardly directed inner face (36) and radially outwardly directed outer face (38) thereof, in particular without overlays and/or inlays.

Abstract: The invention relates to a clamping device (10) for a tool (18) on a machine tool having a holder block (12) with at least 2, in particular a multiplicity of, apertures (16) for receiving clamping sleeves (14), wherein at least two clamping sleeves (14) are received in the apertures (16). Each clamping sleeve (12) has a clamping element (36), with which a tool (18), in particular a shaft (20) of a tool (18), can be clamped. The clamping sleeve (14) at least partially passes through in each case the aperture (16) in the holder block (12) and has, at its end opposite the clamping element (36), the rear end, an expansion element (34) which engages behind the holder block (12) or a counter-support element (30) of the holder block (12).

Abstract: A lightweight construction fastener or clip having a clip body and a fastening element 32. The clip body includes a first leg and a second leg, which are connected with each other by a web 45 at one end. The clip body is formed of one piece, but includes at least two volume sections 61, 62, wherein the first section 61 is formed of a first plastic and the second volume section 62 is formed of a second plastic. The properties of the first and second plastics are different from each other with respect to one or more criteria. A method for producing such a clip body includes manufacturing it in one piece in a multi-component injection molding process from at least two plastics. Further the invention includes a method for manufacturing the lightweight construction fastener or clip by placing a fastening element 32 into the injection molding tool; encapsulating the fastening element 32 and overmolding the fastening element 32 in a multi-component injection molding process.

Abstract: A lightweight construction fastener or clip having a clip body and a fastening element 32. The clip body includes a first leg and a second leg, which are connected with each other by a web 45 at one end. The clip body is formed of one piece, but includes at least two volume sections 61, 62, wherein the first section 61 is formed of a first plastic and the second volume section 62 is formed of a second plastic. The properties of the first and second plastics are different from each other with respect to one or more criteria. A method for producing such a clip body includes manufacturing it in one piece in a multi-component injection moulding process from at least two plastics. Further the invention includes a method for manufacturing the lightweight construction fastener or clip by placing a fastening element 32 into the injection moulding tool; encapsulating the fastening element 32 and overmoulding the fastening element 32 in a multi-component injection moulding process.

Abstract: The invention relates to a ball screw (10) with a threaded spindle (12), a nut (14), rolling bodies (16) and at least one deflecting device (18, 20), wherein the threaded spindle (12) is displaceable by rotation, and wherein the deflecting device comprises an inner first body part (18) and an outer second body part (20), which body parts together form a deflecting channel (22), wherein the deflecting channel (22) has two tubular ends (24, 26) which are connected to each other via a transfer region (28), wherein the tubular ends (24, 26) of the deflecting channel are in each case formed by mutually complementary partial tubular sections (30, 32, 34, 36) of the body parts (18, 20), and wherein a sleeve (40) surrounding the nut (14) is provided, the deflecting device (18, 20) sits in an opening (42) in the nut (14), the deflecting device (18, 20) projects radially beyond the outer lateral surface of the nut (14) in a relaxed state when the sleeve (40) is absent and, in the presence of the sleeve (40), said sleev

Abstract: The invention relates to a ball screw (10) with a threaded spindle (12), a nut (14), rolling bodies (16) and at least one deflecting device (18, 20), wherein the threaded spindle (12) is displaceable by rotation, and wherein the deflecting device comprises an inner first body part (18) and an outer second body part (20), which body parts together form a deflecting channel (22), wherein the deflecting channel (22) has two tubular ends (24, 26) which are connected to each other via a transfer region (28), wherein the tubular ends (24, 26) of the deflecting channel are in each case formed by mutually complementary partial tubular sections (30, 32, 34, 36) of the body parts (18, 20), and wherein a sleeve (40) surrounding the nut (14) is provided, the deflecting device (18, 20) sits in an opening (42) in the nut (14), the deflecting device (18, 20) projects radially beyond the outer lateral surface of the nut (14) in a relaxed state when the sleeve (40) is absent and, in the presence of the sleeve (40), said sleev

Abstract: An attachment receptacle (10) which can be fixed on a head covering, such as a helmet 5, of a user and has a clamping device is provided. The attachment receptacle 10 is fixed by means of a fixing component, for example having hook-like retaining brackets 9a, 9b, on the back of a head covering and is connected via a clamping element to the front or to a sighting device mounted on the front, such as a night vision device 2. The attachment receptacle 10 with the clamping device is formed in such a way that externally accessible components are integrated in the form of the receptacle, in such a way that no projecting or protruding components can cause unintentional actuation of the clamping device. The attachment receptacle 10 is furthermore advantageously formed on the head covering so as to be adjustable in height.

Abstract: According to the invention, an attachment receptacle (10) which can be fixed on a head covering, such as a helmet 5, of a user and has a clamping device is provided. The attachment receptacle 10 is fixed on the one hand by means of a fixing component, for example having hook-like retaining brackets 9a, 9b, on the back of a head covering and is connected via a clamping element, such as a tensioning strap 6, to the front or to a sighting device mounted on the front, such as a night vision device 2. The clamping element can preferably be clamped by means of the clamping device so that the attachment receptacle 10 is pressed firmly onto the head covering. The attachment receptacle 10 with the clamping device is formed in such a way that externally accessible components, such as a clamping lever 11 of the clamping device are integrated in the form of the receptacle, e.g.