Crown Patents (Class 433/218)
  • Patent number: 10299888
    Abstract: A dental crown consisting essentially of stabilized zirconia. The dental crown is particularly suited for pedodontic and veterinary applications and most preferably for pedodontic applications. The zirconia crown may be formed by one of several manufacturing processes. The formed crown exterior can be polished and fine polished and can be covered, preferably only partially, with a porcelain glaze to produce an aesthetic outer surface mimicking a natural tooth. Also disclosed is a method for providing and placing a dental crown upon a natural tooth.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: May 28, 2019
    Inventors: John P. Hansen, Jeffrey P. Fisher
  • Patent number: 10192002
    Abstract: An anatomical implant application, such as a bone implant application for instance, can receive an anatomical image that is representative of an anatomical structure. The anatomical implant application can generate an implant image that is associated with the anatomical structure. The generated implant image can define an inner surface that faces the anatomical image. A plurality of distances can be determined from respective locations of the inner surface of the implant image to the anatomical image in respective straight lines. The distances may represent a superimposition of the implant image over the anatomical image. The distances may be compared to a tolerance. The inner surface may be repositioned so as to change at least the select one of the distances. An implant, such as a bone implant for instance, may be fabricated in accordance with data that is associated with the implant image.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: January 29, 2019
    Assignee: DePuy Synthes Products, Inc.
    Inventors: Emanuel Benker, Andre Furrer, Wolfgang Hoeller
  • Patent number: 10130560
    Abstract: Provided herein are composite materials comprising a thiol-ene polymer resin in a continuous phase and a filler in a discontinuous phase, the filler comprising fluorapatite crystals and silica. Further provided are methods of using these composite materials as restoratives in dental applications. This dental composite is labeled as “smart” because, when the shrinkage stress of the composite is greater than a programmable or pre-selected threshold level, it will elicit visual clues for the dentist.
    Type: Grant
    Filed: March 20, 2015
    Date of Patent: November 20, 2018
    Assignee: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
    Inventors: Brian H. Clarkson, Timothy F. Scott
  • Patent number: 9974633
    Abstract: The present invention relates to oral care and dental implants. In particular, the present invention is a dental implant with a removable protective film that is used to prevent implant loss and remove unwanted residual cement.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: May 22, 2018
    Inventors: Stephen Salinger, Leslie B Heffez
  • Patent number: 9655690
    Abstract: A dental crown consisting essentially of stabilized zirconia. The dental crown is particularly suited for pedodontic and veterinary applications and most preferably for pedodontic applications. The zirconia crown may be formed by one of several manufacturing processes. The formed crown exterior can be polished and fine polished and can be covered, preferably only partially, with a porcelain glaze to produce an aesthetic outer surface mimicking a natural tooth. Also disclosed is a method for providing and placing a dental crown upon a natural tooth.
    Type: Grant
    Filed: October 8, 2015
    Date of Patent: May 23, 2017
    Assignee: EZ PEDO, INC.
    Inventors: John P. Hansen, Jeffrey P. Fisher
  • Patent number: 9566138
    Abstract: Disclosed is a method for modeling and manufacturing a denture for a patient, where the denture comprises a gingival part and artificial teeth, wherein the method comprises: providing a 3D scan comprising at least part of the patient's oral cavity; virtually modeling at least part of the denture using the 3D scan; obtaining virtual teeth to represent the artificial teeth; virtually modeling at least one of the virtual teeth to obtain a set of modeled virtual teeth; manufacturing the modeled virtual teeth in a first material; manufacturing the gingival part in a second material; and manufacturing at least part of the denture by means of computer aided manufacturing (CAM).
    Type: Grant
    Filed: September 30, 2011
    Date of Patent: February 14, 2017
    Inventor: Rune Fisker
  • Patent number: 9375296
    Abstract: A procedure for fabricating an individual abutment for a dental prosthesis for an implant anchored in an area of the jaw with an implant attachment running on the abutment side, using a working model molded by the jaw area equipped with the implant. The sulcus area of the gum uncovered above the implant and shaped by a sulcus-former extending from the implant attachment is reproduced in the working model. The abutment has a sulcus section running within the sulcus area and an adjoining head section to admit a part of a dental prosthesis. The sulcus area of the working model having an auxiliary implant attachment corresponding to the implant attachment is measured, and a sulcus section model determined with a circumferential surface and a de-facto sulcus line limiting it on the implant side.
    Type: Grant
    Filed: March 17, 2010
    Date of Patent: June 28, 2016
    Assignee: DEGUDENT GMBH
    Inventors: Gerlinde Lange, Horst Bachmann, Frank Fuchs, Alexander Hilbert
  • Patent number: 9208531
    Abstract: The systems and methods disclosed herein employ a scanning system for capturing highly detailed digital dental models. These models may be used within a dentist's office for a wide array of dental functions including quality control, restoration design, and fitting. These models may also, or instead, be transmitted to dental laboratories that may, alone or in collaboration with the originating dentist or other dental professionals, transform the digital model into a physical realization of a dental hardware item.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 8, 2015
    Assignee: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Joseph Boerjes, Simon K. J. Schiessl, Michael P. Girard, Micah J. Rosenbloom, Eric B. Paley, Edward K. Tekeian, Steven V. Weeks, David E. Altobelli, Douglas M. Johnston, Janos Rohaly
  • Patent number: 9168111
    Abstract: Root canal abutment devices and methods which facilitate the adjustment or removal of an oral appliance, e.g., a crown or bridge, from a reconfigurable abutment assembly are described. The adjustable abutment assembly may be secured within a pulp chamber of a pre-existing tooth. The abutment assembly has a projecting abutment portion with one or more shape memory alloy sleeves or plates or elements extending along the abutment. Each of the sleeves has a length with at least one curved or arcuate portion. Energy may be applied to the elements such that the arcuate portion flattens to allow for the oral appliance to be placed thereupon while removal of the energy allows the elements to reconfigure into its curved configuration thereby locking the oral appliance to the abutment. Removal of the oral appliance may be effected by reapplication of energy to the elements.
    Type: Grant
    Filed: February 4, 2011
    Date of Patent: October 27, 2015
    Assignee: Rodo Medical, Inc.
    Inventors: Young Seo, Jianhua Yang, Victor Chechelski, Jong Gil Park
  • Patent number: 9034354
    Abstract: Provided are antibacterial and antimicrobial surface coatings and dental materials by utilizing the antimicrobial properties of copper chalcogenide and/or copper halide (CuQ, where Q=chalcogens including oxygen, or halogens, or nothing). An antimicrobial barrier is created by incorporation of CuQ nanoparticles of an appropriate size and at a concentration necessary and sufficient to create a unique bioelectrical environment. The unique bioelectrical environment results in biocidal effectiveness through a multi-factorial mechanism comprising a combination of the intrinsic quantum flux of copper (Cu0, Cu1+, Cu2+) ions and the high surface-to-volume electron sink facilitated by the nanoparticle. The result is the constant quantum flux of copper which manifests and establishes the antimicrobial environment preventing or inhibiting the growth of bacteria.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: May 19, 2015
    Assignees: MUSC Foundation for Research Development, Clemson University
    Inventors: Walter George Renne, Anthony Samuel Mennito, Michael Gerard Schmidt, Jompobe Vuthiganon, George Chumanov
  • Publication number: 20150118648
    Abstract: Disclosed is a ceramic sintered shaped body containing Y2O3-stabilized zirconia with a sintered density of at least 99% of the theoretical sintered density and having a mean grain size of <180 nm. The zirconia fraction of the sintered shaped body comprises tetragonal and cubic phases. Also disclosed is a process for the production of a ceramic sintered shaped body containing Y2O3-stabilized zirconia, which process comprises dispersion of a submicron powder and comminution of the dispersed submicron powder by means of grinding media having a diameter of less than or equal to 100 ?m to a particle size d95 of <0.42 ?m; shaping of the dispersion to form a body, and sintering of the body to form the sintered shaped body.
    Type: Application
    Filed: March 1, 2013
    Publication date: April 30, 2015
    Inventors: Martina Johannes, Jens Schneider
  • Publication number: 20150094197
    Abstract: Lithium silicate materials are described which can be easily processed by machining to dental products without undue wear of the tools and which subsequently can be converted into lithium silicate products showing high strength.
    Type: Application
    Filed: December 11, 2014
    Publication date: April 2, 2015
    Inventors: Elke Signer-Apel, Wolfram Höland, Marcel Schweiger, Christian Ritzberger, Harald Bürke, Volker Rheinberger
  • Publication number: 20150079408
    Abstract: A fluorine-containing porcelain, such as a porcelain material comprising a fluorine-doped glass, is provided for use in dental applications. The porcelain may be used to overlie at least a portion of a dental component such that an interface between the porcelain and the dental component comprises a fluorinated metal oxide. Methods for producing such fluorine-containing porcelains and for treating dental components with such fluorine-containing porcelains are also provided. The fluorine-containing porcelain may exhibit enhanced bonding to the underlying dental component such as a high strength ceramic.
    Type: Application
    Filed: April 18, 2013
    Publication date: March 19, 2015
    Inventors: Jeffrey Robert Piascik, Brian R. Stoner
  • Patent number: 8974586
    Abstract: One subject of the invention is a composition comprising from 5 to 65%, by weight relative to the total weight of the composition, of calcium silicate crystals; from 1 to 20%, by weight relative to the total weight of the composition, of calcium carbonate crystals; in addition from 0 to 50%, preferably from 1 to 40%, by weight relative to the total weight of the composition, of a compound of general formula mCaO.nSiO2.pH2O in which m and n, each independently, vary from 1 to 3 and p varies from 3 to 6; the ratio between the particle size d50 of the calcium silicate crystals and the particle size d50 of the calcium carbonate crystals being less than 10; another subject of the invention is a process for preparing said composition, and also the use of said composition in the dental field.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: March 10, 2015
    Assignee: Septodont ou Septodont SAS ou Specialties Septodont
    Inventors: Gilles Richard, Olivier Marie
  • Publication number: 20150017606
    Abstract: A palladium-based alloy having a coefficient of thermal expansion (CTE) of about 12.0 to about 13.0 and having one or more of the following additive metals: platinum, gallium, molybdenum, tin, silicon, ruthenium, rhenium, indium, tungsten, niobium, boron and lithium.
    Type: Application
    Filed: March 8, 2013
    Publication date: January 15, 2015
    Inventors: Tridib Dasgupta, George Tysowsky
  • Publication number: 20140377718
    Abstract: The invention relates to a dental milling block (1) comprising a dental article (2) having an outer surface, the dental article having been produced based on personalized data, wherein the outer surface of the dental article is at least partially covered with a surrounding material. The invention further relates to a process of producing a dental milling block, the process comprising the steps of: •a) providing a personalized Data Set C containing geometry data of the dental article and colour data related to said geometry data, •b) generating a layer of hardenable material on a surface, •c) applying a colour agent to the layer of hardenable material of step b), wherein the colour agent is applied to at least some regions of those areas of the layer of hardenable material which are related to the geometry data of the dental article, •d) consolidating the result obtained in step c) thereby obtaining an at least partially hardened layer of material.
    Type: Application
    Filed: December 7, 2012
    Publication date: December 25, 2014
    Inventors: Malte Korten, Helmar Mayr, Gallus Schechner, Christoph Thalacker, Karsten Dede, Michael Jahns
  • Publication number: 20140248574
    Abstract: Various methods and systems are provided for multifunctional denture systems. In one example, among others, a multifunctional oral prosthetic system includes an oral prosthetic device that may be located in an oral cavity. The oral prosthetic device includes a plurality of sensors and an internal module in communication with the plurality of sensors. The internal module is configured to provide sensor data corresponding to at least one of the plurality of sensors to an external processing unit when located in an oral cavity.
    Type: Application
    Filed: September 27, 2012
    Publication date: September 4, 2014
    Inventors: Yong-Kyu Yoon, Gloria J. Kim, Xiaoyu Cheng, Marc Campillo-Funollet, Carlos A. Munoz
  • Publication number: 20140248584
    Abstract: The present invention relates to an organically modified silicic acid (hetero) polycondensate or a composite comprising an organically modified silicic acid (hetero) polycondensate and a filler material for use in a dental procedure, particularly in a dental medicine procedure comprising at least a part or all of the following steps: (a) Transfer of said organically modified silicic acid (hetero) polycondensate or said composite in the form of a block and hardening of said block through organic cross-linking, preferably in a thermal and/or redox-induced manner, (b) Intra-oral measuring of the area requiring treatment in the mouth of the patient or a model or impression of this area outside the patient's mouth with the aid of a 3D imaging device, (c) Transfer of the produced imaging data to a computer unit, (d) Production of a virtual design to be inserted in the mouth of the patient with the aid of said computer unit, then either (e1) Grinding out a fully anatomical form of this design from a block made of
    Type: Application
    Filed: October 10, 2012
    Publication date: September 4, 2014
    Inventors: Herbert Wolter, Florian Hausler
  • Publication number: 20140249016
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn Probst, Norbert Thiel, Joachim Bibus, Markus Vollmann, Udo Schusser
  • Patent number: 8813364
    Abstract: Methods for making a layered dental appliance. Some methods can include providing a solid structure (e.g., a die or a dental core, such as a fully sintered ceramic dental core) having a desired outer shape, and applying a first slurry to the solid structure to form a first free form layer on the solid structure. The method can further include solidifying the first free form layer on the solid structure, and machining the solidified first free form layer to a desired shape to form a first article comprising the solid structure and a first shaped layer. The method can further include applying, solidifying, and machining a second layer in a similar way to form a second article comprising the solid structure, the first shaped layer, and a second shaped layer. In some methods, the free form layers are not exposed to a high temperature prior to being machined.
    Type: Grant
    Filed: December 8, 2010
    Date of Patent: August 26, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Gallus Schechner, Michael Jahns
  • Publication number: 20140234799
    Abstract: A dental crown removal apparatus easily and efficiently removes dental crowns, caps or other dental implants from a tooth. Specifically, the present invention provides a dental crown removal apparatus having a first elongated beak and a second elongated beak arranged in a pliers-type arrangement. The first elongated beak has a first beak portion angularly extending from a first handle, and a second beak portion angularly extending from the first beak portion, the first elongated beak engaging the top of a crown, cap or other dental implant. Moreover, the second elongated beak extends angularly from the second handle, the first beak portion of the first elongated beak and the second elongated beak arranged in parallel when the apparatus is in a closed configuration. Methods of using the same are further provided.
    Type: Application
    Filed: February 19, 2014
    Publication date: August 21, 2014
    Applicant: Dental USA, Inc.
    Inventor: Jang H. Lim
  • Publication number: 20140134561
    Abstract: The present embodiments relate to health monitoring systems and, in certain embodiments, to take-home monitoring systems designed for oral appliance monitoring. Embodiments include a method for obtaining data from an oral appliance. The method comprises placing an oral appliance comprising embedded electronics in an oral cavity, wherein the embedded electronics collect data; transmitting the data to a reader, wherein the reader comprises a computer, tablet computer, smart device, reader box, relay transmitter, or a combination thereof.
    Type: Application
    Filed: November 11, 2013
    Publication date: May 15, 2014
    Inventors: Stéphane Louis Smith, Yves Kevin Smith
  • Patent number: 8721336
    Abstract: The present invention relates to a multi-colored shaped body having layers arranged on top of one another for producing dental restorations, a process for its production and its use for the manufacture of dental restorations.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: May 13, 2014
    Assignee: Ivoclar Vivadent AG
    Inventors: Volker M. Rheinberger, Marcel Schweiger, Robert Kruse, Harald Kerschbaumer
  • Patent number: 8712733
    Abstract: Herein are provided methods, systems, computer-readable media, techniques and processes for adjusting dental prostheses based on soft tissue. These include allowing an operator to define the surface of a dental prosthesis, such as an abutment, that is proximal to the patient's gum relative to a 3D scan of the patient's gums. The operator can define the offset of that surface as well as the limits of that surface.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: April 29, 2014
    Assignee: Biocad Medical, Inc.
    Inventors: Jean-Sebastien Auclair Beaudry, David Giasson
  • Publication number: 20140113251
    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.
    Type: Application
    Filed: May 7, 2012
    Publication date: April 24, 2014
    Inventors: Josef Schweiger, Peter Neumeier
  • Patent number: 8702425
    Abstract: A temporary supraconstruction for a dental implant or a core for a temporary supraconstruction for a dental implant, characterized in that it includes a material having a modulus of elasticity of less than 300 MPa, preferably in the range of from 15 to 20 MPa.
    Type: Grant
    Filed: September 26, 2007
    Date of Patent: April 22, 2014
    Assignee: VOCO GmbH
    Inventor: Jan Erik Schulz-Walz
  • Patent number: 8651867
    Abstract: The present invention provides a dental crown formed of a thermoplastic polymer material, the crown comprising: a tooth shaped top surface; and flexible side surfaces, at least one of which includes an inwardly directed bottom portion.
    Type: Grant
    Filed: October 16, 2003
    Date of Patent: February 18, 2014
    Assignee: Uri-Dent Ltd.
    Inventor: Uri Zilberman
  • Patent number: 8624167
    Abstract: A device for making a muffle, with which dental restoration parts can be produced with the aid of an embedding compound, at least one press blank and a pressing device, the device having a muffle base, a tubular sleeve surrounding the muffle base and at least one muffle insert which is arranged on the muffle base and can be separated from it. At least two cylindrical press-channel forming elements (16, 18, 20) extend parallel to one another and spaced apart from one another from a flat-formed portion of the muffle insert (12), which can be burned out at least with respect to the forming elements, which elements are formed in a closed manner, and in particular with thin walls, at least on one free end face opposite from the flat-formed portion (14).
    Type: Grant
    Filed: March 26, 2009
    Date of Patent: January 7, 2014
    Assignee: Ivoclar Vivadent AG
    Inventor: Diethard Bertsch
  • Publication number: 20130330690
    Abstract: Certain embodiments relate to a method of forming an individualized dental product ready for application including at least one tooth veneer, which is of a ceramic material. The method includes milling a first side of a ceramic substrate, filling up with a support material against the first side of the substrate, and milling the second side of the substrate until the veneer is plate-like and provided with a bevelled region over a distance (s) taken from an edge and 0.3 mm to 3 mm towards a middle portion of the veneer. The veneer thickness varies from 0 to a plate thickness (d*enlargement factor) over the distance (s). The method further includes sintering the dental product and removing the support material. Certain embodiments also relate to a product resulting from the method.
    Type: Application
    Filed: January 10, 2012
    Publication date: December 12, 2013
    Applicant: NOBEL BIOCARE SERVICES AG
    Inventors: Glenn Svensson, Daniel Melin
  • Publication number: 20130302750
    Abstract: A tubular sleeve is configured to grasp a small part, move it, and place it in a correct location in a patient's mouth. The tubular sleeve comprises a picking end; a connection end having a connection end piece configured to connect to a suction system; and an inner part between the picking end and the connection end, the inner part being equipped with a sealing flap configured to cooperate with a control device to move the sealing flap between an open position and a closed position. The sealing flap, in the open position, allows passage of aspirated air flow from the suction system to pick up and suction the small part, and the sealing flap, in the closed position, blocks the aspirated air flow to separate the small part from the tubular sleeve.
    Type: Application
    Filed: January 20, 2012
    Publication date: November 14, 2013
    Inventor: Philippe Bagur
  • Patent number: 8551622
    Abstract: A cluster mill blank includes a framework constructed to cooperate with a blank holder of an existing CAD/CAM system, and a plurality of sub-blanks attached to the framework forming an addressable matrix or cluster blank. CAD/CAM systems including such a framework, as well as associated methods are described.
    Type: Grant
    Filed: May 12, 2008
    Date of Patent: October 8, 2013
    Assignee: Ivoclar Vivadent AG
    Inventors: Robert A. Ganley, Dmitri G. Brodkin
  • Patent number: 8552086
    Abstract: A hardenable dental composition that includes a polymerizable component and an organogelator.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: October 8, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Naimul Karim, Todd D. Jones, Kevin M. Lewandowski, Bradley D. Craig, Sumita B. Mitra, Jie Yang
  • Publication number: 20130244209
    Abstract: An implant analog for use in dental procedures has a plastic member which has a central bore. A metal insert which has a female thread is located in the central bore. The outer surface of the metal insert has a series of projections which lock the metal insert and the plastic body and prevent relative rotation or axial motion between the metal insert and the plastic member.
    Type: Application
    Filed: March 13, 2012
    Publication date: September 19, 2013
    Inventors: Albert Zickmann, Sheldon Lerner
  • Publication number: 20130224684
    Abstract: The present invention is a dental device comprising natural and sustainable materials. These materials are derived from the nut of the tangua palm tree that may be fashioned into devices for human and animals when replacing one or more teeth of the subject.
    Type: Application
    Filed: November 14, 2011
    Publication date: August 29, 2013
    Inventor: Frederick R. Guy
  • Publication number: 20130224691
    Abstract: An appliance fabricated to improve the appearance of a patient's smile includes a plurality of simulated teeth. The interior surfaces of each of the teeth closely fits and conforms to the surface of a patient's real teeth while the outer surfaces of each of the simulated teeth has an ideal surface configuration. The dental appliance provides the patient with the appearance of a perfect set of teeth and an ideal smile without a need to alter the dental structure of the patient's teeth.
    Type: Application
    Filed: April 11, 2013
    Publication date: August 29, 2013
    Applicant: DenMat Holdings, LLC
    Inventor: DenMat Holdings, LLC
  • Publication number: 20130209951
    Abstract: A fluoride treated medical implant, such as a dental component, is provided, the medical implant comprising fluorinated metal oxide on the substrate surface. A method for the preparation of such treated implants is also provided, the method involving exposure of the medical implant to a fluorine-containing reagent. A dental structure is also provided, which includes a first dental component comprising a fluorinated metal oxide layer on its surface, a silane coupling agent, a dental cement, and a second dental component having a surface bonded to the dental cement. An additional dental structure, which includes a first dental component comprising a fluorinated metal oxide layer on its surface, a dental cement, and a second dental component having a surface bonded to the dental cement is also provided.
    Type: Application
    Filed: October 20, 2011
    Publication date: August 15, 2013
    Applicant: RESEARCH TRIANGLE INSTITUTE
    Inventors: Jeffrey Robert Piascik, Brian R. Stoner
  • Patent number: 8506299
    Abstract: The invention relates to a device and a method for manufacturing a dental prosthesis with which and in which the data records for fabricated teeth are fitted into a virtual model of the oral situation. It is possible to subsequently directly manufacture the denture base or to insert the fabricated teeth in the model.
    Type: Grant
    Filed: February 3, 2004
    Date of Patent: August 13, 2013
    Assignee: Heraeus Kulzer GmbH & Co. KG
    Inventors: Christian Gärtner, Bernd Kordaβ
  • Patent number: 8457772
    Abstract: Presented herein are methods and devices for designing dental components, such as physical models of a patient's anatomy, crowns and bridges. An operator of a prosthetic designing system can receive information, such as from a scanner, which provides information on the topology of the patient's dentition. The operator can use this information to design a custom prosthetic to fit the patient. Part of the designing process involves using a finish line defined for a preparation as a segmentation line for a physical die corresponding to the preparation, and using a path of draw line as an insertion axis line for a dental prosthetic.
    Type: Grant
    Filed: February 10, 2010
    Date of Patent: June 4, 2013
    Assignee: Biocad Medical, Inc.
    Inventors: David Giasson, Philippe-Armand Laberge, Marc Bedard, Urban Nilsson, Per-Olof Karlsson, Anna Persson
  • Patent number: 8445558
    Abstract: A hardenable dental composition that includes a polymerizable component and an organogelator.
    Type: Grant
    Filed: September 12, 2007
    Date of Patent: May 21, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Naimul Karim, Todd D. Jones, Kevin M. Lewandowski, Bradley D. Craig, Sumita B. Mitra, Jie Yang
  • Publication number: 20130108879
    Abstract: An implant material includes: a base material 10; and a carbonaceous film 20 provided on a surface of the base material 10. The carbonaceous film 20 includes carbon atoms, oxygen atoms, and nitrogen atoms in a surface thereof, and the carbon atoms are bonded to the oxygen atoms to form carboxyl carbon and carbon having a single bond with oxygen. In the surface of the carbonaceous film 20, a content of nitrogen atoms is greater than or equal to 8.0 at. %, a content of carbon having a single bond with oxygen is greater than or equal to 5.4%, and a content of carboxyl carbon is less than or equal to 3.1%.
    Type: Application
    Filed: June 30, 2011
    Publication date: May 2, 2013
    Applicant: Toyo Advance Technologies Co., Ltd.
    Inventors: Akira Mochizuki, Yuki Nitta, Keishi Okamoto, Tatsuyuki Nakatani
  • Patent number: 8426489
    Abstract: Present embodiments include composite dental materials for use in fillings and crowns, and methods of making the same. The composite materials can include biocompatible dental resin matrices and filler materials. The filler materials can include various types of magnetic nanoparticles. Additional embodiments include method of forming composite dental materials using a magnetic field and methods for forming aluminum oxide (Al2O3) nanoparticles. Other embodiments according to present teachings include methods for filling dental cavities and forming dental crowns.
    Type: Grant
    Filed: December 15, 2009
    Date of Patent: April 23, 2013
    Assignee: STC.UNM
    Inventors: Marwan S. Al-Haik, Tariq A. Khraishi
  • Patent number: 8403671
    Abstract: A detachment-prevented removable double-crown prosthetic appliance includes an internal crown member, which has an outside surface to which two resilient retention clamping strips are mounted, each of the resilient retention clamping strips including a root section that is fixed to the outside surface of the internal crown member and a spring section extending from the root section, the spring sections of the resilient retention clamping strips being spaced by a gap that has a reduced neck portion forming a pass; and an external crown member, which is removably mounted to the internal crown member and has a lower inner portion forming a fitting chamber for removably fitting over the internal crown member, the fitting chamber having an inside surface that forms a retention block that is engageable with the resilient retention clamping strips so as to securely but removably couple the external crown member to the internal crown member.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: March 26, 2013
    Inventor: Tai-Wu Lin
  • Publication number: 20130040267
    Abstract: Examples of apparatus, methods, and compositions for endodontic treatments are described. The apparatus can include a fluid platform configured to substantially retain fluid in a tooth chamber during treatment. The fluid platform can help maintain fluid circulation in the tooth chamber as fluid flows into and out of the tooth chamber. The apparatus can also include a pressure wave generator configured to generate acoustic waves that can be used for cleaning root canals and tooth surfaces in the tooth chamber. An access opening can be formed, and the pressure wave generator can be used to remove organic material from the tooth chamber. In some treatments, after cleaning, the tooth chamber can be only partially filled by an obturation material. In other treatments, substantially the entire tooth chamber can remain unfilled by the obturation material. After cleaning the tooth, the access opening can be sealed, using, e.g., a coronal seal.
    Type: Application
    Filed: April 18, 2012
    Publication date: February 14, 2013
    Applicant: SONENDO, INC.
    Inventors: Bjarne Bergheim, Mehrzad Khakpour, Morteza Gharib
  • Patent number: 8338503
    Abstract: The present invention includes a novel shapeable material or resin, specifically for dental use. It is an improvement over conventional dental resins because it is strong, safe, does not encourage the propagation of bacteria and contains no bisphenol A (BPA). Also, it is the preferred resiliency for use in the oral cavity.
    Type: Grant
    Filed: January 4, 2011
    Date of Patent: December 25, 2012
    Inventor: Hiroshi Ando
  • Patent number: 8235722
    Abstract: A method of producing a dental prosthetic item 3, wherein the dental prosthetic item 3 is attached, via an interior surface 5, to another dental prosthetic item 2 by means of an adhesive 9, and for adhesive 9 there is provided a gap 8 disposed between an interior surface of the dental prosthetic item 3 and the other dental prosthetic item 2, wherein interior surface 5 of the dental prosthetic item is designed to make allowance for the visual properties of adhesive 9. Furthermore, a dental prosthetic item 3 is produced on the above lines and a blank 41 for the production of such a dental prosthetic item 3 and the other dental prosthetic item 2 is disclosed.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: August 7, 2012
    Assignees: Sirona Dental Systems GmbH, Vita Zahnfabrik H. Rauter GmbH Co. KG
    Inventors: Joachim Pfeiffer, Wilhelm Schneider, Norbert Thiel
  • Publication number: 20120196244
    Abstract: A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.
    Type: Application
    Filed: April 3, 2012
    Publication date: August 2, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
  • Patent number: 8232506
    Abstract: The present invention relates to a dental firing furnace having a firing space and at least one carrier for dental material, in particular a muffle, which can be loaded into the firing space, and, in particular, a pressing device for pressing a ceramic blank inserted in the muffle, at least one physical variable of the firing space and/or of the carrier and/or of the muffle and/or of the ceramic blank being detected. A processing program of the dental furnace (10) that can be set is based on the detected physical variable.
    Type: Grant
    Filed: March 30, 2008
    Date of Patent: July 31, 2012
    Assignee: Ivoclar Vivadent AG
    Inventor: Rudolf Jussel
  • Publication number: 20120183921
    Abstract: Certain embodiments relate to an individualized dental product ready for application. The dental product can include at least one tooth veneer which is of a ceramic material, is plate-like and has a plate thickness of at least about 0.08 mm. In some embodiments, the thickness is less than 0.2 mm, less than 0.14 mm or less than 0.1 mm. Certain embodiments also relate to a method of improving the aesthetics of a tooth. The method can include placing a dental product onto a tooth surface.
    Type: Application
    Filed: July 8, 2010
    Publication date: July 19, 2012
    Applicant: NOBEL BIOCARE SERVICES AG
    Inventors: Per-Olof Karlsson, Urban Nilsson, Daniel Melin
  • Publication number: 20120171640
    Abstract: The present invention is a dental device comprising natural and sustainable materials. These materials are derived from the nut of the tangua palm tree that may be fashioned into devices for human and animals when replacing one or more teeth of the subject.
    Type: Application
    Filed: December 30, 2011
    Publication date: July 5, 2012
    Inventor: Frederick R. Guy
  • Publication number: 20120148987
    Abstract: In a method for forming a dental part, a laser beam is guided over a powder layer of biocompatible material. The laser is guided by a computer controlled laser scanning system based on data representing the shape of the cross-section through the shaped body. The powder is substantially melted by the laser beam to form a layer in the shaped body, to build the shaped body entirely from layers of laser-melted material.
    Type: Application
    Filed: December 9, 2011
    Publication date: June 14, 2012
    Applicant: BEGO Bremer Goldschlagerei Wilh. Herbst GmbH & Co. KG
    Inventors: Haig Dolabdjian, Roland Strietzel