Patents Assigned to Kulzer GmbH
  • Publication number: 20200261196
    Abstract: Methods produce a three-dimensional dental block of material from a dental, polymerizable material. The methods include at least: transferring the polymerizable dental material into a radiolucent three-dimensional casting or press mold; irradiating the polymerizable dental material substantially from all sides with light in the UV/Ms spectral region forming polymerized outer surfaces of the dental material in the form of a solid outer shell of the dental material, wherein the shell is present in the defined three-dimensional geometry of the material whilst the inner region of the material is not polymerized or partially polymerized; heating the material with solid shell being present in defined three-dimensional geometry, to 60° C. to 150° C. for at least 90 minutes; and obtaining a dental, polymerized block of material having defined three-dimensional geometry.
    Type: Application
    Filed: December 14, 2016
    Publication date: August 20, 2020
    Applicant: KULZER GMBH
    Inventors: Klaus RUPPERT, Alfred HOHMANN
  • Publication number: 20200253836
    Abstract: A polymerisable dental composite material comprising (i) 60 to 85% by weight of an inorganic filler component comprising at least one tectosilicate and optionally at least one dental glass and/or at least one amorphous metal oxide, (ii) 10 to 40% by weight of a mixture of at least two different urethane(meth)acrylates, (iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane(meth)acrylate, (iv) 0.01 to 10% by weight of at least one initiator, an initiator system and optionally at least one stabiliser and optionally at least one pigment, wherein the total composition of the composite material amounts to 100% by weight, and a polymerised composite material having a flexural strength of greater than or equal to 240 MPa and an elastic modulus of 16 to 20 GPa for the production of indirect dentures.
    Type: Application
    Filed: October 1, 2018
    Publication date: August 13, 2020
    Applicant: KULZER GMBH
    Inventors: Andreas UTTERODT, Kurt REISCHL, Nelli SCHÖNHOF, Michael ECK, Raif KOCOGLU, Julta SCHNEIDER, Caroline KEMPKA
  • Publication number: 20200253691
    Abstract: A polymerisable dental composite material comprising (i) 70 to 85% by weight of an inorganic filler component comprising at least one dental glass and optionally at least one amorphous metal oxide, (ii) 10 to 30% by weight of a mixture of at least two different urethane (meth)acrylates, (iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate, (iv) 0.01 to 10% by weight of at least one initiator, of an initiator system and optionally of at least one stabilizer and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight, as well as a polymerized composite material having a flexural strength of greater than or equal to 200 MPa and an elastic modulus of 15 to 20 GPa for the production of indirect dentures.
    Type: Application
    Filed: October 1, 2018
    Publication date: August 13, 2020
    Applicant: KULZER GMBH
    Inventors: Andreas UTTERODT, Kurt REISCHL, Nelli SCHÖNHOF, Michael ECK, Raif KOCOGLU, Jutta SCHNEIDER, Caroline KEMPKA
  • Publication number: 20200246118
    Abstract: A polymerizable dental composite material comprising (i) 70 to 85% by weight of an inorganic filler component comprising at least one dental glass and optionally at least one amorphous metal oxide, (ii) 10 to 30% by weight of a mixture of at least two different urethane (meth)acrylates, (iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate, (iv) 0.01 to 10% by weight of at least one initiator, of an initiator system as well as optionally of at least one stabilizer and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight, as well as a polymerized composite material having a flexural strength of greater than or equal to 200 MPa and an elastic modulus of 15 to 20 GPa for producing indirect dentures.
    Type: Application
    Filed: October 1, 2018
    Publication date: August 6, 2020
    Applicant: KULZER GMBH
    Inventors: Andreas UTTERODT, Kurt REISCHL, Nelli SCHÖNHOF, Michael ECK, Raif KOCOGLU, Jutta SCHNEIDER, Caroline KEMPKA
  • Patent number: 10709522
    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: Grant
    Filed: May 27, 2015
    Date of Patent: July 14, 2020
    Assignee: KULZER GMBH
    Inventors: Waltraut Loh, Astrit Kastrati, Bärbel Quinque, Regina Eppinger, Marcus Hoffmann
  • Publication number: 20200172769
    Abstract: A polymerizable adhesive composition containing an olefinically functionalized carbohydrate, a polymerizable liquid monomer, and optionally at least one polymerization initiator or initiator system is described. The adhesive composition is particularly well suited for adhering plastic components as well as is preferably provided with sufficiently long processing time for adhering artificial teeth on denture bases. The viscosity of the adhesive composition may be adjusted to the respected processing conditions.
    Type: Application
    Filed: July 18, 2018
    Publication date: June 4, 2020
    Applicant: KULZER GMBH
    Inventors: Klaus RUPPERT, Yanyan HABECK
  • Patent number: 10610341
    Abstract: The invention relates to a device and a method for the production of three-dimensional objects, in particular of at least parts of dental prosthetic restorations, by a stripping device wiping off plastic material, which protrudes vertically beyond a container, into a collecting container and forms a projection surface. According to the invention, a stripping device and a light source are coupled and simultaneously guided, at a defined distance, across the liquid light-curing plastic material, whereby the stripping device is guided at a defined distance right ahead of the light source and forms the projection surface for the illuminated field of the light source.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: April 7, 2020
    Assignee: HERAEUS KULZER GMBH
    Inventors: Christian Bauer, Yohannes Woldegergis, Uwe Brick
  • Publication number: 20200093568
    Abstract: Disclosed is a two-component mixing capsule for intake and for mixing of two compositions with a capsule housing having a discharge spout at its front end, wherein the mixing capsule comprises a first mixing chamber and a second mixing chamber, wherein the two mixing chambers may be separated from each other for storage or for transport, by the first mixing chamber being rotatable into a first position in which the first mixing chamber is separated from mixing chamber, by a rotatably mounted handhold element, the rotational axis of which is approximately perpendicularly arranged to the longitudinal axis of the mixing capsule. The two mixing chambers form a common mixing chamber by rotating the first mixing chamber into a second position in which the central axes of the first and second mixing chamber are substantially coaxially arranged, wherein the composition may be discharged after mixing by attaching a squeezing piston.
    Type: Application
    Filed: May 28, 2018
    Publication date: March 26, 2020
    Applicant: KULZER GMBH
    Inventors: Andrea KEMENY, Mike KONDZIELA, Ralf SUFFEL, Andreas UTTERODT, Michael ECK, Raif KOCOGLU, Markus BALKENHOL
  • Patent number: 10568721
    Abstract: The invention relates to a method for producing a denture base semi-finished product with the following steps: 1) Recording and digitalizing the oral cavity situation of a patient, wherein a digital three-dimensional oral cavity model of the patient is produced, or providing a digital three-dimensional oral cavity model of the oral cavity situation of a patient; 2) Implementing a first calculation in which a digital three-dimensional first model (A) of a denture base is calculated, wherein the oral cavity model of the oral cavity situation is used as a basis for the first calculation; 3) Conducting a second calculation, in which a digital three-dimensional second model (B) of a denture base semi-finished product is calculated from the first model (A) of the denture base, wherein volume is added at least in sections to the three-dimensional model (A) of the denture base; and 4) Producing the denture base semi-finished product with a Rapid Prototyping method, wherein with the Rapid Prototyping method, a CAM met
    Type: Grant
    Filed: May 22, 2015
    Date of Patent: February 25, 2020
    Assignee: Kulzer GmbH
    Inventors: Uwe Boehm, Marco Spatz
  • Patent number: 10537412
    Abstract: The invention relates to a device for holding prosthetic teeth (2), the device comprising a negative form (1) and at least one clamping unit (6), wherein in the negative form (1), recesses (4) for holding coronal sides (12) of the prosthetic teeth (2) are provided, wherein the recesses (4) are formed in such a manner that the prosthetic teeth (2) can be inserted in an unequivocally position and orientation into the recesses (4), wherein the at least one clamping unit (6) is affixable or is affixed to the negative form (1) with a connecting means (10), and wherein the at least one clamping unit (6) has at least one elastic holding means (8), wherein with the at least one elastic holding means (8), an elastic force is exercisable or is exerted from at least two different directions onto the prosthetic teeth (2) inserted into the negative form (1), while the at least one clamping unit (6) is affixed to the negative form (1), so that the prosthetic teeth (2) are affixed in the device.
    Type: Grant
    Filed: April 19, 2016
    Date of Patent: January 21, 2020
    Assignee: Kulzer GmbH
    Inventor: Yohannes Woldegergis
  • Publication number: 20200008911
    Abstract: The invention relates to correction factors, in particular digital correction factors or printed correction factors, as translation (x,y,z) data and/or as data of the rotation of at least one real prefabricated prosthetic tooth up to a plurality of real prefabricated prosthetic teeth in a mounting for material-ablating processing of the prosthetic teeth, the correction factors preferably being assigned to the mounting as bar code or as quick-response code for use in a digitally controlled material-ablating process, the mounting having at least one fixed real prefabricated tooth. The invention also relates to the mounting with assigned digital correction factors as well as to a method for determining the digital correction factors of the at least one real prefabricated prosthetic tooth.
    Type: Application
    Filed: March 8, 2018
    Publication date: January 9, 2020
    Applicant: KULZER GMBH
    Inventors: Novica SAVIC, Karl-Heinz RENZ, Silke Maren GALL, Stefan ROMBECK
  • Patent number: 10524650
    Abstract: A method for taking an impression for producing a dental prosthesis involves: A) generating an impression of regions of the upper jaw and lower jaw of a patient using an at least two-part tray, whereby the tray is inserted into the oral cavity of the patient; B) fixing the at least two tray parts to each other or against each other; C) determining the position and orientation of the at least two tray parts with respect to each other; and D) taking the tray parts out of the oral cavity of the patient. Also disclosed is the tray for implementing the method, whereby at least one marking is arranged on the surface of each tray part, and a device for intra-oral determination of the orientation and position of the marking and, thus, the at least two tray parts, is provided, whereby the device comprises a computer and a recording facility.
    Type: Grant
    Filed: June 13, 2014
    Date of Patent: January 7, 2020
    Assignee: KULZER GMBH
    Inventors: Mario Beyer, Norbert Ueberück, Uwe Böhm
  • 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