Patents Assigned to Ormco Corporation
  • Patent number: 10463453
    Abstract: An orthodontic appliance includes a portion made of a shape memory alloy having a base alloy composition of at least two different metallic elements and a treated region having an alloy composition that is depleted in at least one of the metallic elements. The base alloy may include a nickel titanium alloy (NiTi), a copper chromium nickel titanium alloy (CuCrNiTi), or a copper aluminum nickel (CuAlNi) alloy. The treated region may be depleted in at least one of copper, aluminum, nickel, and titanium relative to the base alloy composition by exposing the base alloy to a source of energy. The base alloy composition has a first austenitic finish temperature and the treated region has an austenitic finish temperature that may be different than the first austenitic finish temperature. The treated region may form a part of an archwire, a stop, a hook, a crown, a band, or an orthodontic bracket.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: November 5, 2019
    Assignee: Ormco Corporation
    Inventors: Sammel Shahrier Alauddin, Jason Anthony Mohr, Benjamin Mark Nazeck, Nathan Wong
  • Patent number: 10420629
    Abstract: A series of multi-tapered parabolic implements is disclosed for endodontic use. The instruments comprise different sections: a pilot tip, a first portion adjacent the pilot tip and a second portion adjacent the shank. The two portions have different tapers. The tapers of the two different portions blend into each other along a parabola-shaped surface. The pilot tip is radiussed for ease of entry into a root canal with increased safety.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: September 24, 2019
    Assignee: ORMCO CORPORATION
    Inventor: L. Stephen Buchanan
  • Patent number: 10383704
    Abstract: A method for fabrication of an orthodontic device having tooth-fitting cavities, such as an aligner, using layer-by-layer printing of a single or multiple polymeric materials. The cavities of the appliance or an appliance mold are defined by the boundaries of the multiple layers, encapsulating up to fourteen teeth of a patient, and shaped to apply a load to at least one tooth that is sufficient to cause movement of the tooth, and remodeling of the adjacent bone. In the case where the cavities form an appliance mold, the mold is used to form a positive model and an appliance is formed thereon. A series of such appliances may be used to treat malocclusion of teeth, each appliance used in series to incrementally move one or more teeth from initial positions toward a desired final position. The appliance may be fabricated with a variety of disclosed materials, and may include auxiliary features for interaction with other orthodontic elements.
    Type: Grant
    Filed: January 10, 2013
    Date of Patent: August 20, 2019
    Assignee: Ormco Corporation
    Inventor: Ian Kitching
  • Patent number: 10368719
    Abstract: Provided are a system, method, and computer readable storage medium for using a digital reconstruction of a tooth, wherein the digital reconstruction includes a crown and a root. An image of the crown of the tooth is acquired, subsequent to a movement of the tooth. The shape data of the crown is extracted from the image and registered to the digital reconstruction of the tooth.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: August 6, 2019
    Assignee: Ormco Corporation
    Inventors: Craig A. Andreiko, Robert F. Dillon, Bradley S. Carlson, Vicente A. Reynal
  • Patent number: 10321975
    Abstract: A method for continuously evaluating the effectiveness of debridement of a root canal of a tooth, the tooth having an open access cavity and an apex end, includes delivering a fluid to the open access cavity of the tooth, evacuating the fluid near the apex end of the tooth such that the fluid flushes most of the root canal before being evacuated, and continuously evaluating the evacuated fluid for at least one of a presence of debris, a concentration level of the debris, or a type of the debris. An apparatus for use in debriding a root canal of a tooth includes a microcannula or a macrocannula configured to evacuate a fluid in the root canal, and a sensing mechanism fluidically coupled to the microcannula or the macrocannula, the sensing mechanism configured to continuously sense debris in the evacuated fluid in real time.
    Type: Grant
    Filed: May 25, 2017
    Date of Patent: June 18, 2019
    Assignee: Ormco Corporation
    Inventors: Steven Joseph Burns, Emanuele Maretto, Abhigyan Som, Carlos Alberto Munoz, Matteo Bosisio, Gopikrishnan Soundararajan, Tuyen Nguyen, M. Reza Mehrabi
  • Patent number: 10258439
    Abstract: A computational device determines a representation of one or more anatomical features, and based on the determined representation of the one or more anatomical features, a three-dimensional model is oriented in a three-dimensional space in an anatomically accurate manner. Thereafter, an orthodontic device design is created using the oriented three dimensional model and an orthodontic device is manufactured based at least in part on the orthodontic device design.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: April 16, 2019
    Assignee: Ormco Corporation
    Inventors: Ian D. Kitching, Evan Yifeng Tsai
  • Patent number: 10204414
    Abstract: Systems and methods are described for identifying a sub-gingival surface of a tooth in volumetric imagery data. Shape data is received from a surface scanner and volumetric imagery data is received from a volumetric imaging device. The shape data of the super-gingival portion of a first tooth is registered with the volumetric imagery data of the super-gingival portion of the first tooth to obtain a registration result. At least one criterion is then determined for detecting a surface of the first tooth in the volumetric imagery data of the super-gingival or the sub-gingival portion using the registration result. The surface of the sub-gingival portion of the first tooth is detected in the volumetric imagery data using the at least one criterion.
    Type: Grant
    Filed: February 26, 2018
    Date of Patent: February 12, 2019
    Assignee: ORMCO CORPORATION
    Inventors: Craig A. Andreiko, Robert F. Dillon, Bradley S. Carlson
  • Patent number: 10190199
    Abstract: Metal ingots for forming single-crystal shape-memory alloys (SMAs) may be fabricated with high reliability and control by alloying thin layers of material together. In this improved method, a reactive layer (e.g., aluminum) is provided in thin flat layers between layers of other materials (e.g., copper and layers of nickel). When the stacked layers are vacuum heated in a crucible to the melting temperature of the reactive layer, it becomes reactive and chemically bonds to the other layers, and may form eutectics that, as the temperature is further increased, melt homogeneously and congruently at temperatures below the melting temperatures of copper and nickel. Oxidation and evaporation are greatly reduced compared to other methods of alloying, and loss of material from turbulence is minimized.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: January 29, 2019
    Assignee: Ormco Corporation
    Inventors: Alfred David Johnson, Walter A. Bachmann
  • Patent number: 10182884
    Abstract: A system for debinding a green body in the form of an orthodontic appliance may include a pressure vessel configured to contain a supercritical fluid. A source of a fluid chemical may be coupled to the pressure vessel to supply the fluid chemical to the pressure vessel. A heat source may be configured to heat the fluid chemical. A pump may pressurize the fluid chemical to at least the supercritical pressure. A collection vessel is coupled to the pressure vessel to capture the binder removed from the green bodies as at least the pressure of the supercritical fluid is reduced. A method of manufacturing an orthodontic appliance includes exposing green bodies including particles and a binder to a supercritical fluid to remove at least some of the binder from the green bodies, and collecting the removed binder from the supercritical fluid as the supercritical fluid transitions to a non-supercritical fluid.
    Type: Grant
    Filed: April 24, 2013
    Date of Patent: January 22, 2019
    Assignee: Ormco Corporation
    Inventors: Deric Marc Munoz, Philip Blair Corrin, Billy Chiman Yim, Siu-Kau Tam
  • Patent number: 10159544
    Abstract: An orthodontic bracket is described and which includes a base member defining an archwire slot having an opening, and at least one projection extending outwardly from the base member; a ligating slide moveable between a first position which is clear of the archwire slot, and second position where the ligating slide projects over the opening of the archwire slot; and a biasing member borne by the ligating slide, and resiliently cooperating with the projection, and wherein the biasing member has a first portion which receives the projection when the ligating slide is in the first position, and a second portion which receives the projection when the ligating slide is in the second position.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: December 25, 2018
    Assignee: Ormco Corporation
    Inventor: Dwight H. Damon
  • Patent number: 10154890
    Abstract: A dental archwire is provided having a pre-set shape including an elongate, curved length approximating the shape of a dental arch and a rectangular cross-section having a first dimension of 0.013-0.021 inch and a second dimension of 0.018-0.026 inch or a circular cross-section of diameter 0.013 through 0.026 inch over at least a portion of the elongate, curved length. The dental archwire in the pre-set shape comprises a hyperelastic, single crystal shape memory alloy that is free of elemental precipitates and is capable of exhibiting greater than a 10 percent strain recovery, a constant force deflection, negligible stress hysteresis, and a binding force to an orthodontic bracket equal or less than 4 N.
    Type: Grant
    Filed: May 3, 2016
    Date of Patent: December 18, 2018
    Assignee: Ormco Corporation
    Inventors: Alfred David Johnson, Sammel Shahrier Alauddin
  • Patent number: 10143536
    Abstract: A set of rules to design an orthodontic appliance for generating an aesthetic smile is maintained in a computational device, where the set of rules is associated with an application that executes in the computational device. At least one measured value is computed from one or more features extracted by processing dental information of a patient. The application generates a parameter to design an orthodontic appliance based on the at least one measured value and the set of rules for generating the aesthetic smile.
    Type: Grant
    Filed: May 16, 2016
    Date of Patent: December 4, 2018
    Assignee: Ormco Corporation
    Inventors: Craig A. Andreiko, David M. Sarver
  • Patent number: 10129448
    Abstract: An imaging system, a method for imaging an object of interest, and an image of the object of interest. In one embodiment, an imaging system includes a channel configured to receive information from an object of interest, a 3DSS sub-system configured to capture information from the object of interest and generate at least one of 3D surface data or 3D position data based on the information captured by the 3DSS sub-system, and an OCT sub-system configured to perform a line scan of light reflected from the object of interest, generate OCT image data from the line scan, receive the at least one of the 3D surface data or the 3D position data, and generate one or more OCT images using the OCT image data and the at least one of the 3D surface data or the 3D position data.
    Type: Grant
    Filed: July 20, 2016
    Date of Patent: November 13, 2018
    Assignees: DENTAL IMAGING TECHNOLOGIES CORPORATION, ORMCO CORPORATION
    Inventors: Robert F. Dillon, Amr Medhat Elbasiony
  • Patent number: 10098713
    Abstract: Provided are a system, method, and computer readable storage medium for generating an intra-oral scan of a dentition. A contiguous scan of an occlusal surface of at least a part of one arch of the dentition is generated. At least one additional surface is associated to the contiguous scan of the occlusal surface.
    Type: Grant
    Filed: March 13, 2014
    Date of Patent: October 16, 2018
    Assignee: ORMCO CORPORATION
    Inventors: Robert F. Dillon, Craig A. Andreiko, Andrew F. Vesper, Neil H. K. Judell, Timothy I. Fillion
  • Patent number: 10098709
    Abstract: A method and system for generated an optimized placement of orthodontic brackets on a set of teeth with the goal of smoothing the orthodontic archwire associated with the brackets. The optimized placement takes into account at least one constraint, such as minimum height of the brackets or minimum distance from the center of the tooth. Generating the optimized placement may take the form of iteratively re-positioned the brackets on the underlying teeth to derive the most optimal placement within the bounds of the given constraints.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: October 16, 2018
    Assignee: Ormco Corporation
    Inventors: Ian D. Kitching, Evan Yifeng, Pawan Deshmukh
  • Patent number: 10058400
    Abstract: A green metal body includes metal particles and a binder in the shape of an orthodontic bracket and/or base plate. The green metal body is fabricated by being laser-cut with a laser to shape the green metal body into the shape of an orthodontic bracket and/or to carve recesses and/or undercuts into the bonding surface of the bracket. The green metal body is sintered to shrink its volume into a denser and less porous sintered metal body configured to be an orthodontic bracket. The resultant sintered orthodontic bracket includes recesses and/or undercuts in the bonding surface to provide a mechanical aspect when bonded to a tooth.
    Type: Grant
    Filed: July 28, 2015
    Date of Patent: August 28, 2018
    Assignee: Ormco Corporation
    Inventors: Norbert Abels, Claus H. Backes
  • Patent number: 10052177
    Abstract: A placement jig for locating an orthodontic appliance on a tooth is provided with a cavity formed in a jig body and conforming to the contour of an occlusal portion a tooth crown, which cavity is coated with a releasable adhesive to hold the jig to the tooth as the appliance is bonded to the tooth. Connecting structure is fixed to the jig body. In certain embodiments, at least two jig-locating areas shaped to respectively conform to areas on the occlusal surfaces of two different teeth of a group are machined into the machinable material, and appliance receiving structures are also machined on each jig body, each for holding an orthodontic appliance in a fixed position and orientation relative to the jig body. The jig bodies for placing orthodontic appliances on the teeth of an individual patient are preferably formed of a single piece of machinable material. A method and an apparatus for forming the jig bodies are provided.
    Type: Grant
    Filed: August 16, 2006
    Date of Patent: August 21, 2018
    Assignee: Ormco Corporation
    Inventor: Craig A. Andreiko
  • Patent number: 10039618
    Abstract: An orthodontic bracket for coupling an archwire having a ligature to a tooth includes a bracket body configured to be mounted to the tooth, the bracket body including an archwire slot opened to one side of the bracket body and adapted to receive the archwire therein. At least two tie wings extend from the bracket body, the at least two tie wings each having a tip region and an under tie wing region, and the under tie wing region is configured to receive the ligature. The under tie wing regions each include a curvature in a plane parallel to a longitudinal axis of the archwire slot and extending in the same direction that the archwire slot opens at a location adjacent an outer end of the under tie wing region.
    Type: Grant
    Filed: August 30, 2016
    Date of Patent: August 7, 2018
    Assignee: Ormco Corporation
    Inventor: Benjamin Mark Nazeck
  • Patent number: 10011050
    Abstract: Provided is a method in which a computational device generates a design of a negative mold of teeth. The negative mold of the teeth is fabricated from the design of the negative mold. An aligner is formed using the fabricated negative mold. Provided also is a negative mold of teeth for fabricating a positive model of the teeth for an aligner. The negative mold comprises a tooth surface, and an identity tracking entity coupled to the tooth surface to provide identification.
    Type: Grant
    Filed: June 27, 2014
    Date of Patent: July 3, 2018
    Assignee: Ormco Corporation
    Inventors: Ian D. Kitching, Hua Zhang, Tuan A. Do, Kenneth A. Phelps, Yi-Feng Tsai
  • Patent number: D842474
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: March 5, 2019
    Assignee: Ormco Corporation
    Inventor: Carlos A. Aloise