Patents Assigned to VOCO GmbH
  • Patent number: 10393501
    Abstract: A device for determining a 3D structure of an object having first and second laser emitters which generate laser radiation with first and second different wavelengths, respectively. A first beam splitter splits the laser radiation of each laser emitter into reference and illuminating radiation. The illuminating radiation is adapted to impinge on the object to be measured, be reflected by the object as object radiation, and interfere with the reference radiation to form interference patterns. A detector receives the interference patterns. A selection hologram deflects object radiation which impinges on it within a predefined incidence angle range and passes object radiation which impinges on it outside of the incidence angle range undiffracted. The undiffracted radiation either passes by the determination area of the detector or impinges on the determination area at an angle outside the determination angle range.
    Type: Grant
    Filed: May 2, 2017
    Date of Patent: August 27, 2019
    Assignee: VOCO GMBH
    Inventor: Alexander Knüttel
  • Publication number: 20190247168
    Abstract: What is described is a milling blank having a continuous shade gradient for production of an indirect dental restoration, composed of resin or a resin-based composite. What is also described is a method of producing such a milling blank by mixing two differently coloured pastes with continuous variation of the mixing ratio of the two pastes during the dispensing operation.
    Type: Application
    Filed: February 15, 2019
    Publication date: August 15, 2019
    Applicant: VOCO GmbH
    Inventors: Daniel Oldenburger, Marie Appelmann, Manfred Thomas Plaumann
  • Patent number: 10299997
    Abstract: The invention relates to a particularly storage-stable and thixotropically stable dental prophylaxis paste for professional tooth cleaning which is very easy to use and thoroughly cleans and polishes the teeth of the patient and causes little abrasion of natural tooth substance. Such a dental prophylaxis paste may comprise: a.) a base component comprising water and humectant, b.) a cleaning body comprising a compound based on calcium phosphate in combination with pumice, c.) a buffer component, d.) a component for controlling the rheology, e.) an additive component selected from the group consisting of stabilizers, dyes, pigments and fluoridation agents, and, as wetting agent, f.) has exclusively one or more amphoteric surfactant(s), where the buffer component c.) is based on hydrogen phosphate and keeps the pH of the prophylaxis paste, measured in a 10% suspension (w/w) of the paste in water against a pH electrode, between 7 and 8.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: May 28, 2019
    Assignee: VOCO GmbH
    Inventors: Gerrit Lübbe, Manfred Thomas Plaumann
  • Publication number: 20180271629
    Abstract: Described is a milling blank for producing an indirect dental restoration, composed of resin or a resin-based composite, containing water in an amount of at least 25% of the water sorption Wsp. Described is further a method for producing such a milling blank or a moulded part produced therefrom for use as an indirect dental restoration, a use of the water sorption method, a kit for producing indirect dental restorations and a method for indirect dental restoration.
    Type: Application
    Filed: March 14, 2018
    Publication date: September 27, 2018
    Applicant: VOCO GmbH
    Inventors: Reinhard MALETZ, Nils Fontein, Daniel Oldenburger, Manfred Thomas Plaumann
  • Publication number: 20180228580
    Abstract: A dental milling blank for the production of permanent indirect restorations in the CAD/CAM process, characterized in that it has a water sorption WSP of less than/equal to 18 ?g/mm3, measured according to ISO 4049 and an E modulus E greater than/equal to 13 GPa, measured according to the ADA specification No. 27 and a quotient Q of WSP/E of less than 1.35 ?g/(GPa×mm3) and consists of the polymerization product of a radically curable dental composition, which comprises a) inorganic fillers, wherein the total mass of the inorganic fillers is at least 83 wt. %, based on the total mass of the composition, b) radically polymerizable monomers, c) one or more initiators for radically curing.
    Type: Application
    Filed: February 15, 2018
    Publication date: August 16, 2018
    Applicant: VOCO GmbH
    Inventors: Daniel Oldenburger, Reinhard Maletz, Nils Fontein, Manfred Thomas Plaumann
  • Publication number: 20180168938
    Abstract: The present invention relates to a composition for use as component of a multicomponent resin-modified glass ionomer cement, to a multicomponent resin-modified glass ionomer cement and also to a process for the preparation of the corresponding compositions and of cured dental materials. The invention furthermore relates to the corresponding use of one or more compounds (S) selected from the group consisting of sulfinic acids, salts of sulfinic acids and salts of organoboron compounds.
    Type: Application
    Filed: December 21, 2017
    Publication date: June 21, 2018
    Applicant: VOCO GmbH
    Inventors: Simon Schmücker, Manfred Thomas Plaumann
  • Patent number: 9913699
    Abstract: In order to develop mixing and application capsules known from the prior art, so that limitations regarding the dental preparations that can be obtained are overcome, a mixing capsule (22) for producing a dental preparation is proposed in which the mixing capsule (22) has: a capsule body (1) having a mixing chamber for receiving a mixing component and for mixing the dental preparation from the mixing component, a first fluid and a second fluid and having an outlet opening (4) for expelling the dental preparation, a first cavity for receiving the first fluid, a first piston body (2) which delimits the mixing chamber in the capsule body (1) and which has a first passageway for guiding the first fluid from the first cavity into the mixing chamber, a second cavity for receiving the second fluid and a second piston body (2) which delimits the mixing chamber in the capsule body (1) and which has a second passageway for guiding the second fluid from the second cavity into the mixing chamber.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: March 13, 2018
    Assignee: VOCO GMBH
    Inventors: Manfred Thomas Plaumann, Andree Barg, Uwe Leiner
  • Patent number: 9839585
    Abstract: The present invention relates to novel free-radically curable dental compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable dental monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, to the cured dental products formed from the dental compositions of the invention, and to the respective use thereof as dental material, especially as flowable filling composites (called “flow materials”), core buildup materials and luting cements. The invention further relates to a method for producing the dental compositions and to a process for producing a respective dental product.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: December 12, 2017
    Assignee: VOCO GmbH
    Inventors: Nils Fontein, Gerrit Luebbe, Manfred Thomas Plaumann
  • Patent number: 9835435
    Abstract: Apparatus for detecting a 3D structure of an object, comprising at least three laser emitters and a beam splitter that splits the laser radiation of the laser emitters into a reference radiation and an illumination radiation. The illumination radiation strikes the object to be measured, is reflected by the object as object radiation and interferes with the reference radiation. A detector receives the interference patterns formed from the interference of the reference and object radiation and an analysis unit analyzes the interference patterns. At least two of the laser emitters emit laser radiation in the invisible range and the analysis unit detects the object in three dimensions based on the interference patterns of the invisible laser radiation. At least one of the laser emitters emits colored laser radiation and the analysis unit deduces the object's color based on the intensity of the colored object radiation reflected by the object.
    Type: Grant
    Filed: May 20, 2015
    Date of Patent: December 5, 2017
    Assignee: Voco GmbH
    Inventor: Alexander Knüttel
  • Patent number: 9833387
    Abstract: The present invention relates to a kit for indirect production of composite inlays, comprising a polymerizable material for production of a dental model, a polymerizable material for production of an inlay, a polymerizable material for luting of a crosslinked and non-sand-blasted, non-silanized, non-etched, non-primed and non-roughened composite inlay, the surfaces of which have been fully polymerized, in the cavity. Also disclosed is a polymerizable material for increasing the bond strength between the polymerizable material for luting of a crosslinked non-sand-blasted, non-silanized, non-etched, non-primed and non-roughened composite inlay, the surfaces of which have been fully polymerized, in the cavity, and the hard substance of the tooth, and an acid solution for surface etching of the hard substance of the tooth. The invention further relates to methods for producing a composite inlay.
    Type: Grant
    Filed: October 7, 2013
    Date of Patent: December 5, 2017
    Assignee: VOCO GmbH
    Inventors: Manfred Thomas Plaumann, Klaus-Peter Hoffmann, Tobias Bloemker, Alexander Willner
  • Patent number: 9833388
    Abstract: The present invention relates to a curable dental material, to a cured dental material producible therefrom by polymerization, to a method for producing the curable or cured dental material and to the use of the curable or cured dental material.
    Type: Grant
    Filed: October 23, 2015
    Date of Patent: December 5, 2017
    Assignee: VOCO GMBH
    Inventors: Alexander Willner, Manfred Thomas Plaumann
  • Patent number: 9795541
    Abstract: The present invention relates to the use of free-radically curable compositions, comprising chain-like and/or cyclic and/or cage-type polysiloxanes substituted by free-radically polymerizable groups and having at least 3 silicon atoms and/or mixed forms thereof, disiloxanes substituted by free-radically polymerizable groups, optionally one, two, three or more free-radically curable monomers having no silicon atom, fillers, initiators and/or catalysts for free-radical polymerization, and also further customary additives, in additive manufacturing methods, preferably in stereolithography (SL) and digital light processing (DLP). The present invention further relates to the use of the cured free-radically curable compositions, preferably for production of dental products.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: October 24, 2017
    Assignee: VOCO GmbH
    Inventors: Nils Fontein, Gerrit Luebbe, Daniel Oldenburger, Manfred Thomas Plaumann
  • Patent number: 9549787
    Abstract: A mixing and application capsule for producing a dental preparation is described. The mixing and application capsule can have a capsule body with a mixing space for receiving a mixture component and for mixing the dental preparation from the mixture component and a fluid and with an outlet orifice for expelling the dental preparation, a cavity for receiving the fluid, a piston body that is movable in the capsule body, and delimits the mixing space in the capsule body and has a channel for conveying the fluid from the cavity into the mixing space. The piston body includes wholly or partly of two or a plurality of dissimilar materials, comprising at least one soft component and at least one hard component.
    Type: Grant
    Filed: April 11, 2012
    Date of Patent: January 24, 2017
    Assignee: VOCO GMBH
    Inventors: Uwe Leiner, Manfred Thomas Plaumann
  • Publication number: 20170000585
    Abstract: The invention concerns a storage and mixing device for producing a dental preparation comprising two, three or more mixing components, wherein the storage and mixing device has an individual chamber or two or more chambers which are separated from each other in a storage condition and which contain the mixing components, and an actuator moveable from a storage position for maintaining the storage condition of the storage and mixing device into a reaction position for bringing the mixing components together. In accordance with the invention it is proposed that a first and a second mixing component and optionally one or more further mixing components are already accommodated in the individual chamber or a first chamber of the plurality of chambers when the actuator is still in the storage position.
    Type: Application
    Filed: May 26, 2016
    Publication date: January 5, 2017
    Applicant: VOCO GmbH
    Inventors: Andree BARG, Manfred Thomas PLAUMANN
  • Patent number: 9532931
    Abstract: The invention relates to a polysiloxane compound comprising specific siloxane units, curable dental materials comprising one or more than one polysiloxane compound according to the invention, cured dental materials obtainable from the curable dental materials according to the invention, a method for preparation of polysiloxane compounds according to the invention, a method for preparing curable polysiloxane compounds according to the invention and a method for preparing cured dental materials according to the invention.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: January 3, 2017
    Assignee: VOCO GMBH
    Inventor: Gerrit Lübbe
  • Patent number: 9474697
    Abstract: The invention relates to a two-component dental elastomeric impression material with dimensional stability and storage durability based on addition curing silicone, wherein one component comprises a polymerization catalyst, containing or composed of a) at least one polydimethylsiloxane comprising polyatomic cross-linkable groups, preferably unsaturated cross-linkable groups, b) at least one polyaklysiloxane with Si—H functionalities, c) at least one catalyst for the reaction of a polydimethysiloxane, comprising polyatomic cross-linkable groups, with a polydimethylsiloxane comprising Si—H functionalities d) one or more fillers, e) a combination of release agents, comprising i) at least one alkyl-substituted polydimethylsiloxane, in which the alkyl chain is linear or branched, and/or at least a polydimethylsiloxane, in which the alkyl chain is linear or branched, and partially or completely halogenated, preferably fluorinated, and ii) at least one paraffin, and further relates to a dental mold, use, a dent
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: October 25, 2016
    Assignee: VOCO GmbH
    Inventors: Norman Hendrik Riedel, Wigand Krumme, Tobias Blömker, Manfred Thomas Plaumann
  • Patent number: 9434522
    Abstract: A packaging (100, 200) for storing a free-flowing, paste-like or powdery substance (110), includes a bottom foil (120, 220) and a covering foil (130, 230) which are sealed to each other at least in certain portions, and a removal chamber (140, 240) which is formed from regions of the bottom foil and the covering foil that are detachably sealed to one another at least in certain portions, wherein the removal chamber can be opened by detaching at least a first portion (131, 231) of the covering foil from the bottom foil, wherein a second portion (132, 232), which is arranged adjacent to the first portion, of the covering foil displays less deformation resistance than the first portion of the covering foil, so that plastic deformation, required for opening the removal chamber, of the covering foil occurs substantially in the second portion of the covering foil.
    Type: Grant
    Filed: February 3, 2009
    Date of Patent: September 6, 2016
    Assignee: VOCO GMBH
    Inventors: Uwe Leiner, Manfred T. Plaumann
  • Patent number: 9421152
    Abstract: A dental material, a dental mixture or a dental multi-component system for making the material of or core for a temporary superstructure for a dental implant by polymerization hardening, consisting of one, two or a plurality of polymerizable (meth)acrylates, and optionally further constituents. The dental material, the dental mixture or the multi-component system is hardenable to a product, and the maximum compressive modulus is 420 MPa, and is used in therapeutic treatments for accelerating the osseointegration of dental implants, in particular according to the method of progressive bone loading. Also described are temporary superstructures and cores themselves, and a temporary dental prosthesis, a kit for making a plurality of temporary superstructures for a dental implant or a plurality of cores for temporary superstructures for a dental implant. A corresponding method of preparing a temporary superstructure or a core is also described.
    Type: Grant
    Filed: January 24, 2012
    Date of Patent: August 23, 2016
    Assignee: VOCO GMBH
    Inventors: Reinhard Maletz, Tobias Blömker, Klaus-Peter Hoffmann, Manfred Thomas Plaumann
  • Publication number: 20160199166
    Abstract: In order to develop mixing and application capsules known from the prior art, so that limitations regarding the dental preparations that can be obtained are overcome, a mixing capsule (22) for producing a dental preparation is proposed in which the mixing capsule (22) has: a capsule body (1) having a mixing chamber for receiving a mixing component and for mixing the dental preparation from the mixing component, a first fluid and a second fluid and having an outlet opening (4) for expelling the dental preparation, a first cavity for receiving the first fluid, a first piston body (2) which delimits the mixing chamber in the capsule body (1) and which has a first passageway for guiding the first fluid from the first cavity into the mixing chamber, a second cavity for receiving the second fluid and a second piston body (2) which delimits the mixing chamber in the capsule body (1) and which has a second passageway for guiding the second fluid from the second cavity into the mixing chamber.
    Type: Application
    Filed: December 17, 2015
    Publication date: July 14, 2016
    Applicant: VOCO GmbH
    Inventors: Manfred Thomas PLAUMANN, Andree Barg, Uwe Leiner
  • Patent number: 9326917
    Abstract: A photopolymerizable dental composition for application to and for the isolation and protection of gums and/or teeth during dental treatment is described. The composition can include (a) one or more photopolymerizable monomers selected from the group consisting of acrylates and methacrylates, (b) one or more photoinitiators, preferably selected from the group consisting of alpha-diketones, benzoin alkyl ethers, thioxanthones, benzophenones, acyl phosphine oxides, acetophenones, ketals, titanocenes, borates and sensitizing dyes, and (c) one or more molecular weight regulators selected from the group consisting of compounds which can be reacted with a radical of a monomer of component (a) with abstraction of an H radical from the molecular weight regulator in the allyl position. Also disclosed are kits comprising such a composition, methods for producing a corresponding protective layer, methods for treating one or more teeth, and methods of using the compositions as a masking compound.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: May 3, 2016
    Assignee: VOCO GMBH
    Inventors: Reinhard Maletz, Wigand Krumme, Manfred Thomas Plaumann