Patents Assigned to Kulzer GmbH
  • Publication number: 20190374440
    Abstract: Provided are adhesive monomers for dental materials including compounds represented by the general formula (1) below, in which the core (X) and the terminal group (Y1) are bonded to each other directly or via the linking group (Z): X(Y1)n1a(Z?Y1)n1b(1) wherein n1a represents the number of terminal groups (Y1) directly bonded to the core (X), n1b represents the number of terminal groups (Y1) bonded to the core (X) via the linking group (Z), and the sum of n1a and n1b is equal to the valence of the core (X); the core (X), the linking group (Z) and the terminal group (Y1) are further defined. The adhesive monomers can enhance adhesive strength to the tooth in dental treatment, and impart high mechanical strength to cured products.
    Type: Application
    Filed: March 29, 2018
    Publication date: December 12, 2019
    Applicants: Mitsui Chemicals, Inc., KULZER GMBH
    Inventors: Yoko KOSUGI, Akiko MATSUMOTO, Kazuhiko YOSHINAGA, Michael GERLACH, Maria LECHMANN-DORN, Jutta SCHNEIDER, Andreas UTTERODT
  • Patent number: 10463456
    Abstract: The invention relates to a method for producing a dental prosthesis, wherein the dental prosthesis comprises a prosthetic base and a plurality of prosthetic teeth, wherein the method is carried out with the use of a virtual three-dimensional dental prosthesis model of the dental prosthesis which is to be produced, and wherein the virtual three-dimensional dental prosthesis model comprises virtual prosthetic teeth and a virtual prosthetic base, including the following chronological steps: A) producing a physical occlusion plate, wherein a region of the surface of the occlusion plate is formed by a negative of the coronal sides of the virtual prosthetic teeth of the virtual dental prosthesis model, wherein the location and orientation of the virtual prosthetic teeth relative to one another corresponding to the virtual dental prosthesis model remain retained in the shape of the surface of the occlusion plate; B) placing and securing preassembled prosthetic teeth on the occlusion plate, wherein the coronal sid
    Type: Grant
    Filed: November 23, 2015
    Date of Patent: November 5, 2019
    Assignee: Kulzer GmbH
    Inventors: Klaus Ruppert, Stefan Brill
  • Patent number: 10459083
    Abstract: Disclosed is a 3D scanner comprising at least one scanning module for acquiring three-dimensional coordinates of a surface of an object and a positioning device on which the object is placeable or fixable, whereby the positioning device is movable relative to the at least one scanning module, and the 3D scanner further comprising at least one accelerometer, which is configured to measure a change of the position of the positioning device relative to the scanning module, and a first processing unit which is connected to the at least one scanning module and to the positioning device for receiving data. Also disclosed is a method for scanning a surface of an object to acquire three dimensional (3D) coordinates of the surface.
    Type: Grant
    Filed: January 5, 2018
    Date of Patent: October 29, 2019
    Assignee: Kulzer GmbH
    Inventors: Loris Maccaferri, Andrea Grandi, Valerio Zaminato
  • Patent number: 10426582
    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.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: October 1, 2019
    Assignee: Kulzer GmbH
    Inventors: Novica Savic, Silke Maren Gall, Karl-Heinz Renz, Juliane Stumbaum, Florian Beuer, Josef Schweiger
  • Patent number: 10420712
    Abstract: The subject matter of the invention is a three-dimensional molded body, in particular a milling blank, made of a polymerizable prosthetic material, which is suitable for milling machining by means of CNC and/or CAD/CAM, having a fracture toughness of greater than or equal to 1.9 Mpa·m1/2 and a fracture work of greater than or equal to 900 J/m2. The milling blank preferably comprises core-shell particles modified by an elastic phase and is optionally based on a content of urethane (meth)acrylate polymerized into the polymer. Moreover, a subject matter of the invention is the use of the milling blanks for the production of at least parts of dental prosthetic parts, such as a prosthesis, artificial teeth, bridges, or of orthodontic appliances and instruments in medical field.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 24, 2019
    Assignee: HERAEUS KULZER GMBH
    Inventors: Klaus Ruppert, Alfred Hohmann, Stephan Dekert
  • Patent number: 10390914
    Abstract: A method for processing prosthetic teeth for the production of a full denture or at least a partial denture with at least two prosthetic teeth, a device for holding prosthetic teeth for the implementation of the method, and a set for the implementation of the method with the device. The method includes the following steps: inserting at least two prefabricated prosthetic teeth with their coronal sides into recesses of an elastic mold, attaching a clamping device to the elastic mold, and applying mechanical pressure to exert force to affix the prosthetic teeth in the elastic mold, positioning and aligning the prosthetic teeth in a desired position and a desired alignment in relation to each other in the elastic mold, affixing the elastic mold with the clamping device and prosthetic teeth in a defined position in a holder of a CAM device for removing material of the prosthetic teeth with a CAM method, and basally ablating at least one of the prosthetic teeth affixed in the elastic mold with the CAM method.
    Type: Grant
    Filed: April 9, 2015
    Date of Patent: August 27, 2019
    Assignee: Kulzer GmbH
    Inventors: Novica Savic, Karl-Heinz Renz, Silke Maren Gall
  • Patent number: 10271930
    Abstract: The present disclosure provides a dental bridge intermediary structure comprising a superstructure (203) and a reference plate (200), with distance pins (202) connecting the two. A method for producing a dental bridge superstructure (203) is also provided.
    Type: Grant
    Filed: December 3, 2012
    Date of Patent: April 30, 2019
    Assignee: Kulzer GmbH
    Inventors: Yohannes Woldegergis, Stefan Hormann, Kristofer Frick
  • Patent number: 10258441
    Abstract: The invention relates to a process for producing a dental prosthesis with the chronological steps: A) Inserting the prosthetic teeth into the prosthetic base and connecting them with it in such a way that after their insertion into the prosthetic base the prosthetic teeth have limited movability in the prosthetic base B) Changing the position and/or the orientation of at least one prosthetic tooth in the prosthetic base; C) Fixing the prosthetic teeth on the coronal side in a key, and securing the orientation and position of the prosthetic teeth to one another in the changed position and/or orientation; D) Separating the prosthetic teeth from the prosthetic base; F) Fastening the prosthetic teeth in the prosthetic base with a cement or an adhesive, the gaps between the surfaces of the prosthetic base that are provided for fixation of the prosthetic teeth and the prosthetic teeth being filled with the cement or the adhesive; and G) Allowing the cement or adhesive to harden, the prosthetic teeth being solidl
    Type: Grant
    Filed: July 3, 2015
    Date of Patent: April 16, 2019
    Assignee: Heraeus Kulzer GmbH
    Inventors: Uwe Boehm, Klaus Ruppert, Stephan Dekert
  • Patent number: 10206767
    Abstract: The invention relates to a temporary dental prosthesis for determining abrasion facets, having at least one prosthetic tooth, in which at least the occlusion surface of the prosthetic tooth or at least one of the prosthetic teeth is made of a material that is abradable such that, within a maximum of 12 weeks of use as a dental prosthesis by a patient, abrasion facets are produced on the prosthetic teeth and are suitable for ascertaining the chewing movements of the jaw of the patient. The invention also relates to a method for determining the chewing movement of a set of teeth from measured abrasion facets, in which a temporary dental prosthesis made of an abradable material is inserted in a patient, and to a method for producing a final dental prosthesis.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: February 19, 2019
    Assignee: Heraeus Kulzer GmbH
    Inventors: Uwe Boehm, Matthias Funk
  • Publication number: 20180368939
    Abstract: The invention relates to a two-component mixing capsule (1) for intake and for mixing of two, preferably powdered or preferably pasty or kneadable, particularly preferably dental, compositions with a capsule housing (2) having a discharge opening (3) at its front end (2.1), wherein the mixing capsule (1) comprises a first mixing chamber (5a) and a second mixing chamber (5b), wherein the two mixing chambers may be separated from each other for storage or for transport, by the first mixing chamber (5a) being rotated by a rotatably mounted handhold element whose rotation axis (Y) is approximately perpendicularly arranged to the longitudinal axis (Z) of the mixing capsule (1) into a first position in which the first mixing chamber (5a) is separated from mixing chamber (5b), preferably the central axes of the mixing chambers are arranged to each other by approximately 90°.
    Type: Application
    Filed: December 8, 2016
    Publication date: December 27, 2018
    Applicant: KULZER GMBH
    Inventors: Ralf SUFFEL, Andreas UTTERODT, Michael ECK, Raif KOCOGLU, Markus BALKENHOL
  • Publication number: 20180344432
    Abstract: The invention relates to a scan abutment (2), in particular an integrally manufactured scan abutment, for determination of the position of the front face (1.1) of a dental endosseous implant (1), wherein the abutment (2) has a longish, hollow shaft (4), and the shaft has an upper region (4.1), a central region (4.2) and a lower region (4.3). Moreover, the shaft (4) of the scan abutment with its central region (4.2) is attachable onto the front face (1.1) of the implant (1), and its lower region (4.3) is insertable into the connection geometry of the implant. The longish, hollow shaft (4) has a side wall (10). The shaft of the scan abutment has at least two to terminally extending slits (5) in its central region (4.2) and lower region (4.3) in the side wall (10). Two, three or four slits are preferred. Preferably, the slits (5) end in one recess (6) each, such as a circular recess, in the side wall (10) at their upper end and extend terminally in the side wall (10) to the bottom side of the shaft (4).
    Type: Application
    Filed: October 26, 2016
    Publication date: December 6, 2018
    Applicant: KULZER GMBH
    Inventor: Matthias FUNK
  • Publication number: 20180303584
    Abstract: The invention relates to a scan abutment (2) for determination of the position of the plane of the front face (1.1) of a dental endosseous implant (1), wherein the abutment (2) has a longish, hollow shaft (4) and a base (3) at the bottom side (4.2) of the shaft (4), and the base (3) with at least a part of its bottom side (8.2) is attachable onto the front face (1.1) of the implant (1), wherein the base (3) has a recess (9) extending from the upper side (8.1) to the lower side (8.2) of the base (3), wherein the longish, hollow shaft (4) has from a side wall (10) having at least one through hole (5a) at its outer periphery, wherein the through hole of the side wall (10) extends from the bottom side (4.2) of the shaft (4) to the upper side (4.1) of the shaft, thereby forming a planar surface (6) in the plane (12) between shaft (4) and base (3).
    Type: Application
    Filed: October 26, 2016
    Publication date: October 25, 2018
    Applicant: KULZER GMBH
    Inventor: Matthias FUNK
  • Patent number: 10004579
    Abstract: A dental superstructure, and a manufacturing method thereof, comprising a screw-channel (1), through which screw-channel a screw member is to be inserted, and a screw member seat (3), for providing support to the head of said screw member during fixation of said dental superstructure to a spacer element or an implant (5), are provided. Said dental superstructure is provided with a central axis of said screw-channel (1) and a central axis of said second mouth (4) that at least partly do not coincide. A manufacturing method thereof, a screw-member, and a screwdriver are also provided.
    Type: Grant
    Filed: May 21, 2014
    Date of Patent: June 26, 2018
    Assignee: Kulzer GmbH
    Inventors: Sture Benzon, Per Olof Leike
  • Patent number: 10004576
    Abstract: A dental superstructure attaching system for use with a dental implant is provided. The system comprises a longitudinal member being connectable with an implant or an implant connecting member via an at least partially curved interface area. The longitudinal member comprises a main member forming the lingual part of said longitudinal member, and a lever member forming the buccal or labial part of said longitudinal member. The longitudinal member further comprises means for urging said lever member and said main member away from each other, such that said longitudinal member is secured to said implant or implant connecting member. A dental superstructure connection device in such a system, and methods for attaching a dental superstructure to a dental implant via such a system, are also provided.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: June 26, 2018
    Assignee: Kulzer GmbH
    Inventor: Sture Benzon
  • Publication number: 20180110585
    Abstract: The invention relates to dental micro-applicators having a body with a distal and a proximal end, whereby, on the proximal end, an application aid is provided, at least in part, with at least one additive selected from metals, metal-containing compounds, and organometallic compounds for affecting the polymerisation of dental materials, as well as a method for the production thereof and a kit comprising the applicator and a dental adhesive.
    Type: Application
    Filed: May 27, 2015
    Publication date: April 26, 2018
    Applicant: HERAEUS KULZER GMBH
    Inventors: Waltraut LOH, Astrit KASTRATI, Bärbel QUINQUE, Regina EPPINGER, Marcus HOFFMANN
  • Publication number: 20180078348
    Abstract: The invention relates to a method for the production of a dental prosthetic moulded part, such as a partial or total prosthesis, which is produced in a multilayered manner from a generatively produced solid body model of at least one prosthetic tooth or of a prosthetic dental arch, wherein, inside, tooth neck-sided, the prosthetic teeth have a lumen, in which a dentin-hued, polymerisable composition is filled. The composition is subsequently polymerised in at least one step. The at least one prosthetic tooth with dentin-hued composition is arranged, with its cervical side, on the tooth-sided surface of the denture base and compacted. Subsequently, the partial or total prosthesis obtained is completely cured in a light curing device. The prosthetic moulded parts obtainable according to the method according to the invention are also a subject matter of the invention.
    Type: Application
    Filed: March 22, 2016
    Publication date: March 22, 2018
    Applicant: KULZER GMBH
    Inventors: Klaus RUPPERT, Christian BAUER
  • Patent number: 9918810
    Abstract: The invention relates to a method for producing a dental prosthesis, wherein the dental prosthesis comprises a prosthesis base and a plurality of prosthesis teeth, wherein the method is carried out making use of a virtual three-dimensional dental prosthesis model of the physical dental prosthesis which is to be produced, and wherein the virtual three-dimensional dental prosthesis model comprises virtual prosthesis teeth and a virtual prosthesis base, with the steps: from the external form of the vestibular surfaces and/or occlusal surfaces of the virtual prosthesis teeth, and from the external form of the vestibular surface of the virtual prosthesis base of the virtual three-dimensional dental prosthesis model, a virtual model of a template is calculated, such that a region of the virtual surface of the virtual template is formed by a negative of the vestibular surfaces and/or occlusal surfaces of the virtual prosthesis teeth and of the virtual prosthesis base, wherein the location and the orientation of t
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: March 20, 2018
    Assignee: Heraeus Kulzer GmbH
    Inventors: Matthias Funk, Jochen Sagolla, Helmut Redemann
  • Patent number: 9918809
    Abstract: An insert for a dental prosthesis screwed onto an implant, in particular of the type having a superstructure and an implant to be integrated in the bone, which are reciprocally joined by a screw. The insert is composed of an element made of a damping material interposed between the coupling surface of the superstructure and the implant. With an insert according to the invention, a dental prosthesis screwed onto an implant is obtained, which reproduces the natural anchoring state of the tooth to the bone, so that the stress peaks on the superstructure are damped before being discharged onto the implant and consequently also onto the bone. An insert according to the invention also offers the advantage of sealing the contact area between the superstructure and the implant, thus preventing dangerous bacterial infiltrations.
    Type: Grant
    Filed: January 16, 2015
    Date of Patent: March 20, 2018
    Assignee: Kulzer GmbH
    Inventors: Bruno Piasini, Antonio Maria Scotti
  • Patent number: 9914265
    Abstract: The invention relates to a method for producing a homogenized distribution of light quantity with a spatial light modulator that comprises a multitude of controllable and tiltable micro-mirrors that are arranged in rows and columns, in which the light of a spatially emitting light source is projected by means of an optical system and an illuminated field of the projected light source is guided over a projection surface, whereby, towards the middle of the illuminated field, an increasing number of pixels is not being illuminated such that the time integral attains a homogenization of the light intensity of all pixels that are illuminated on the projection surface.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 13, 2018
    Assignee: KULZER GMBH
    Inventors: Christian Bauer, Marco Spatz
  • Patent number: 9907630
    Abstract: A method produces one or more dentures wherein the dentures have a base element that holds at least two tooth blanks. The method comprises producing a negative mold by machining on the basis of a digital image of a tooth situation and shortening, by machining, a length dimension of the tooth blanks that are preassembled and held in the negative mold from a basal side in order to achieve a tooth line adapted to the tooth situation. The method also comprises connecting the base element and the shortened tooth blanks to form the dentures.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: March 6, 2018
    Assignee: Kulzer GmbH
    Inventors: Mario Beyer, Uwe Böhm