By Deformation Of Material Patents (Class 433/71)
  • Patent number: 10675125
    Abstract: A dental appliance seating tool is configured for a person to bite and provides sufficient resistive force to aid in seating of a removable dental appliance. The seating tool includes top and bottom surfaces configured to respectively engage with top and bottom teeth of an individual. The seating tool also includes a front surface coupling the top surface to the bottom surface and a rear surface opposite the front surface. An interior wall defines a cavity within the volume defined by the top, bottom, front surface, and rear surfaces. The cavity has a front opening in the front surface and a rear opening in the rear surface. The cavity allows a shaft to pass through the front and rear openings, thus enabling the dental appliance seating tool to slide along the shaft.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: June 9, 2020
    Assignee: PUL Technologies, LLC
    Inventor: Jannet My Ly
  • Patent number: 10201407
    Abstract: A structure and method of visualizing and evaluating areas of tooth contact between upper and lower teeth when the upper and lower arches of a mouth are in a closed or occluded condition. The method includes performing a plurality of readings of tooth contacts, by a pressure sensing device, during a period of time and determining sensing properties of the tooth contacts based on the plurality of readings, wherein the sensing properties include one or more of: sequence of a first tooth contact relative to at least a second tooth contact, and pressure magnitude of the first tooth contact.
    Type: Grant
    Filed: November 2, 2015
    Date of Patent: February 12, 2019
    Assignee: International Business Machines Corporation
    Inventors: Mark B. Stevens, John D. Wilson
  • Patent number: 9622837
    Abstract: A dental guard system for fitting boil and bite dental guards so that undesirable deformations of the guard are avoided during the fitting of the guard to the user. The system includes a boil and bite dental guard and an associated forming tray configured to be generally rigid but conformable in that it tends to retain its shape so as to inhibit undesirable deformations of the guard, yet enables the guard to form to the teeth of the user.
    Type: Grant
    Filed: April 7, 2011
    Date of Patent: April 18, 2017
    Assignee: DenTek Oral Care, Inc.
    Inventor: John M. Jansheski
  • Patent number: 9498310
    Abstract: A full denture base manufacturing method is provided that can easily manufacture a full denture base, using a set of maxillary impression tray and a mandibular impression tray for taking an impression from a patient including an edentulous patient.
    Type: Grant
    Filed: June 17, 2013
    Date of Patent: November 22, 2016
    Assignee: GC Corporation
    Inventors: Takeo Suga, Masataka Itoda, Hideaki Yasaki, Yasuhiro Yokoyama, Shuichi Nomura, Hiroshi Kamohara
  • Patent number: 9192455
    Abstract: Oral appliances, methods of making oral appliances, and bite registration devices for use in making oral appliances are provided. An oral appliance includes a lower segment, and upper segments. The upper segments are operably connected to the lower segment using threaded elements. Rotational manipulation of the threaded elements causes the upper segments to be displaced horizontally relative to the lower segment about the lengths of the threaded elements, and the lengths of the threaded elements are substantially parallel to each other. A bite registration device for use in making an oral appliance includes a top surface including a protrusion and a bottom surface including a receptacle configured to receive the protrusion. The device is configured to be maintained in stacked relation to a like configured second bite registration device by mating the protrusion of the bite registration device with a receptacle of the second bite registration device.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 24, 2015
    Inventors: Allen J. Moses, Gloria L. Pacini
  • Publication number: 20140242540
    Abstract: Methods of making an impression of dental tissue and dental articles (e.g. suitable for dental impression) are described. In one embodiment, the method comprises providing a hardenable composition, comprising a resin system, a filler system, and an initiator system wherein the hardenable composition is a hardenable self-supporting material having sufficient malleability to be formed into a shape. The method further comprises placing said hardenable composition in contact with dental tissue such that an impression of at least a portion of the dental tissue is formed in the hardenable composition. The method further comprises curing the hardenable composition comprising the impression.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 28, 2014
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Todd D. Jones, Joachim W. Zech, Marc Peuker, Naimul Karim
  • Patent number: 8691003
    Abstract: An indicator is useful for detecting pressure points on a denture. The indicator is made of a composition that easily adheres to oral mucosa, has a proper viscosity in an oral cavity environment, can be properly spread between an oral mucosa surface and a denture base, and easily specifies an affected part. The composition includes a fatty acid ester having a melting point of 30 to 50° C., a water-soluble high polymer, and a metal oxide. Preferably, the fatty acid is 40 to 95% by weight of the composition, the water-soluble high polymer is 1 to 59% by weight of the composition, and the metal oxide is 0.1 to 50% by weight of the composition.
    Type: Grant
    Filed: September 29, 2011
    Date of Patent: April 8, 2014
    Assignee: GC Corporation
    Inventors: Yutaka Shinozaki, Hiroshi Kamohara
  • Patent number: 8689795
    Abstract: A TemporoMandibular Joint (TMJ) balancing appliance and a method for using the same are provided, in which a first base portion accommodates incisor teeth, a second base portion is extended from a left side of the first base portion and accommodates left molar teeth, and a third base portion is extended from a right side of the first base portion and accommodates right molar teeth. The first base portion includes an upper part for accommodating upper incisor teeth and a lower part for accommodating lower incisor teeth and has a center for accommodating the upper and lower incisor teeth higher than the left and right sides.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: April 8, 2014
    Assignee: Jinbiotech Co., Ltd.
    Inventors: Young-Jun Lee, Hwa-Jeong Lee, Kyung-Hoon Lee
  • Publication number: 20130244198
    Abstract: A device is disclosed for recording a specific horizontal reference line of a patient that enables the alignment of an upper jaw model to this horizontal reference line. The device serves not only to determine the horizontal reference line with the active communicative aid of the patient but also comprises a bite fork, which can be aligned in accordance with the description and can also be provided by this means. The adjusted bite fork may then be inserted into an articulator and may be fixed in place so that the model of the upper jaw is mounted parallel to the horizontal reference line of the patient.
    Type: Application
    Filed: February 21, 2013
    Publication date: September 19, 2013
    Inventors: Karsten Baumann, Arno Schöler
  • Publication number: 20130203009
    Abstract: An apparatus for registering occlusal dimensions, comprising a support surface sized and configured for providing areal support to a registration rim; and at least one connector adapted to releasably connect to a dental implant extension.
    Type: Application
    Filed: October 24, 2011
    Publication date: August 8, 2013
    Inventors: Amnon Mutsafi, Ronny Winshtein
  • Patent number: 8459990
    Abstract: A dental apparatus and method of use for producing edentulous dentures, each including a lower dental tray having a removable modular contact plate with an upwardly extending shoulder surrounding a tapered opening, a ball nut retained in the tapered opening, and a post adjustably secured to the ball nut. A modular striking plate may be removably attached to an upper dental tray or an integrated striking sector on a bottom surface of the upper dental tray is utilized to accurately obtain an established occlusal vertical and centric relation positions. The contact plate and striking plate are each configured as snap-in components to the respective trays. Additionally, the contact plate may be utilized as a spacer between the dental trays once the post and ball nut are removed. Finally, the contact plate and striking plate may be removed for functional positioning and esthetic blue printing measurements.
    Type: Grant
    Filed: December 6, 2011
    Date of Patent: June 11, 2013
    Assignee: Global Dental Impression Trays, Inc.
    Inventor: Joseph J Massad
  • Publication number: 20130052609
    Abstract: The present invention provides an occlusal pressure measuring device which makes it possible to capture the positional relation between measurement results of the occlusal pressure and the tooth row more easily and more precisely. The occlusal pressure measuring device 1 comprises: a sensor portion 10 capable of measuring occlusal pressure; and a body 20 which transmits information obtained from the sensor portion, wherein the sensor portion is a laminate of a plurality of layers; at least one of the plurality of layers is a pressure sensitive layer capable of detecting occlusal pressure; and the outermost layer of the sensor portion is a shape transfer layer which can be deformed by the occlusal pressure and can retain the deformation even when the occlusal pressure is removed.
    Type: Application
    Filed: August 24, 2012
    Publication date: February 28, 2013
    Applicant: GC CORPORATION
    Inventor: Shunjirou KUME
  • Patent number: 8376966
    Abstract: The present invention provides a evaluating system of masticatory efficiency comprising a first step of allowing a human subject to masticate an artificial food material containing microparticles that are finely crushed and ground by mastication and keep a spherical shape unless they are masticated; a second step of enlarging the artificial food material having been thus masticated by applying pressure to a thickness equal to the diameter of the microparticles while sandwiching the artificial food material between two preparation sheets; and a third step of counting microparticles keeping the spherical shape that remain in the artificial food material having been enlarged between the two preparation sheets by applying pressure. By using this evaluating system in the invention, the masticatory efficiency can be evaluated well in precise and at short time without using a solvent and expensive instruments.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: February 19, 2013
    Assignee: Examastica Co.
    Inventor: Fujio Miura
  • Patent number: 8303301
    Abstract: An apparatus, a system and a method are provided for providing a dental diagnosis and/or a dental appliance to a user by examining a portion of a mouth of the user. To this end, the apparatus, system and method may evaluate images whether digital, still, video, digital x-ray or the like, of the portion of the mouth to determine if a medical condition may be cured and/or corrected by a dental appliance stored within a machine and capable of being dispensed from the machine. In addition, the system may provide a wafer or tray which the user may position in his mouth to make an impression. The wafer or tray, or an image of the wafer or tray, may then be sent to an individual and/or a central processing unit. Also, a user may position a film within his mouth and transmit the film or an image of the film to an individual and/or a central processing unit.
    Type: Grant
    Filed: January 22, 2003
    Date of Patent: November 6, 2012
    Assignee: Ortho-Tain, Inc.
    Inventor: Earl O. Bergersen
  • Publication number: 20120077141
    Abstract: A dental apparatus and method of use for producing edentulous dentures, each including a lower dental tray having a removable modular contact plate with an upwardly extending shoulder surrounding a tapered opening, a ball nut retained in the tapered opening, and a post adjustably secured to the ball nut. A modular striking plate may be removably attached to an upper dental tray or an integrated striking sector on a bottom surface of the upper dental tray is utilized to accurately obtain an established occlusal vertical and centric relation positions. The contact plate and striking plate are each configured as snap-in components to the respective trays. Additionally, the contact plate may be utilized as a spacer between the dental trays once the post and ball nut are removed. Finally, the contact plate and striking plate may be removed for functional positioning and esthetic blue printing measurements.
    Type: Application
    Filed: December 6, 2011
    Publication date: March 29, 2012
    Applicant: GLOBAL DENTAL IMPRESSION TRAYS, INC.
    Inventor: Joseph J. Massad
  • Publication number: 20120037166
    Abstract: Systems for sizing oral appliances comprise both a width measuring template or tool for determining the distance between opposed molars and an arch sizing tool for determining the size and shape of the patient's dental arch. Based on this information, individual appliances can be selected from an inventory of such appliances, where the selected appliance would best fit the patient.
    Type: Application
    Filed: August 16, 2010
    Publication date: February 16, 2012
    Applicant: ApniCure, Inc.
    Inventors: Jonathan L. Podmore, Kenneth Mejia, Shannon Clark
  • Publication number: 20120028211
    Abstract: The invention relates to an occlusion template having position markers comprising prescribed dimensions, applied to prescribed locations of the template, and recognizable as position marks on an image of the jaw or a jaw area of a patient. In order to be able to analyze locally limited X-ray images, the invention proposes that the template comprises more than three position markers, each disposed in the bite area of the template.
    Type: Application
    Filed: January 30, 2009
    Publication date: February 2, 2012
    Inventor: Ady Palti
  • Publication number: 20120003604
    Abstract: Occlusal-surface shape data and occlusal-surface position data of dentures are acquired on a dentist side, and the data is then transmitted to a grinding data provider side. A maxillomandibular occlusal state data is reproduced from the occlusal-surface shape data and the occlusal-surface position data on the grinding data provider side. A maxillomandibular occlusal adjustment portion is determined by changing a maxillomandibular occlusal vertical dimension by the grinding data provider side. Cutting data including the occlusal adjustment portion data and the occlusal-surface position data are prepared on the grinding data provider side, and the data is transmitted to the dentist side. An occlusal adjustment is carried out by cutting the dentures by a grinding machine based on cutting data on the dentist side.
    Type: Application
    Filed: June 24, 2011
    Publication date: January 5, 2012
    Inventors: Takeshi MORIYAMA, Yusei Kadobayashi
  • Patent number: 8070489
    Abstract: An integrated modular dental measuring apparatus and method of use for producing edentulous dentures, each including a lower dental tray having a removable modular contact plate with an upwardly extending shoulder surrounding a tapered opening, a ball nut retained in the tapered opening, and a post adjustably secured to the ball nut. A modular striking plate may be removably attached to an upper dental tray or an integrated striking sector on a bottom surface of the upper dental tray is utilized to accurately obtain an established occlusal vertical and centric relation positions. The contact plate and striking plate are each configured as snap-in components to the respective trays. Additionally, the contact plate may be utilized as a spacer between the dental trays once the post and ball nut are removed. Finally, the contact plate and striking plate may be removed for functional positioning and esthetic blue printing measurements.
    Type: Grant
    Filed: February 26, 2009
    Date of Patent: December 6, 2011
    Assignee: Global Dental Impression Trays, Inc.
    Inventor: Joseph J. Massad
  • Patent number: 7891976
    Abstract: The purpose of the present invention is to develop an apparatus that can examine the occlusal contact patterns during the sleep bruxism, which can not be evaluated by the observation of the interior of oral cavity or by means of the articulator, in order to establish a convenient evaluation means for employing bruxism in daily and clinical diagnosis. The present invention relates to a bruxism evaluation sheet having a layer comprising an aqueous solution composition of an organic solvent comprising a dye and a thermosetting resin on a base sheet made of a thermoplastic resin, and a method for producing a convenient bruxism evaluation apparatus comprising heating the bruxism evaluation sheet, vacuum pressing it onto a model and then molding, and the like.
    Type: Grant
    Filed: November 29, 2005
    Date of Patent: February 22, 2011
    Assignees: Rocky Mountain Morita Corp., Kanagawa Dental College
    Inventors: Kanji Onodera, Sadao Sato
  • Patent number: 7845942
    Abstract: A dental impression analyzer including a housing having two opposite open ends. A lower end of the two opposite ends fits over a tooth of a patient. A plurality of pins are slidably mounted in the housing. The pins are of equal length, extending parallel to each other, and at least a portion of sidewalls of the housing extending parallel to each other and parallel to the plurality of pins to maintain the pins parallel to each other and to guide movement of the pins. The plurality of pins are tightly compressed together in an interior of the housing. A lower end of the pins are positioned to engage an uppermost surface of the tooth of the patient when the housing is fitted over the tooth of the patient. An upper end of the pins replicates the uppermost surface of the tooth when the lower end of the pins engage the uppermost surface of the tooth.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: December 7, 2010
    Inventor: Alfred Harper Ben Wilkinson
  • Publication number: 20100304325
    Abstract: Methods and apparatus for stabilizing a bite fork in a patient's mouth. The apparatus may comprise an elastically deformable bite fork stabilizer. The elastically deformable bite fork stabilizer may comprise an elastically deformable layer, an adhesive layer on one side of the elastically deformable layer, and a removable layer adhered to the adhesive layer.
    Type: Application
    Filed: January 26, 2010
    Publication date: December 2, 2010
    Inventor: Gayle J. Fletcher
  • Publication number: 20100297572
    Abstract: A dental impression tray assembly includes an upper tray and a lower tray operable with the upper tray, and the lower tray includes a first piece configured to measure jaw relations of a patient's mouth and a pair of second pieces detachably attachable to the first piece. The first piece of the lower tray is inserted into the patient's mouth independently of the pair of second pieces of the lower tray to measure the jaw relations and to obtain a bite registration. After the first piece is connected to the pair of second pieces, the assembly allows a final gum impression of the patient's lower gum to be obtained.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 25, 2010
    Inventor: Tae Hyung Kim
  • Publication number: 20100261133
    Abstract: A system and method for making an improved mandibular repositioning device includes a pair of tooth fixation element premolds, a pressure molding cap and at least one adjustment mechanism. The premolds include resin and reinforcing material within a flexible envelope. The pressure molding cap includes a rigid shell and an inflatable bladder. The tooth fixation element premold is placed on the patient's teeth. The pressure molding cap is placed over the premold and the bladder is filled. The pressure of the bladder forms the premold to the patient's teeth. The pressure is released once the resin is set and the formed tooth fixation element may be removed from the patient's teeth. After a tooth fixation element is created for both the top and bottom sets of teeth an attachment mechanism is coupled to both tooth fixation elements to adjustably coupled the tooth fixation elements to each other.
    Type: Application
    Filed: April 8, 2009
    Publication date: October 14, 2010
    Inventor: Ronald G. Lax
  • Patent number: 7810447
    Abstract: A strip of dental articulating paper is held pincer-like between two biased lateral edges of an outer housing. A grip head overlying a liner protects one lateral edge of the dental articulating paper, with a linear tracing of petroleum jelly formed on the liner adjacent exposed surfaces on both sides of the dental articulating paper. During storage, the grip head is received by and between the two biased lateral edges of the housing. Immediately prior to use, the dental professional slowly removes the grip head from the housing, with the biased lateral edges pressing against the sides of the withdrawing articulating paper, spreading an even, thin film of petroleum jelly over the surfaces thereof.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: October 12, 2010
    Inventors: Deborah Manos, Harry-George T. Manos, Joseph R. Mackenroth, III
  • Patent number: 7806688
    Abstract: Processes wherein a soft polymer sheet deforms readily under the pressure of dental surfaces brought into contact with one another. As such, the sheet does not itself interfere with such contact. Processes for the sheet include deforming the sheet between contacting dental surfaces, and noting the location and intensity of contact deformations. The position of the sheet is stabilized on the surfaces by temporary adhesion, wherein the adhered sheet does not interfere with contact. Further processes involve deforming the sheet between contacting dental surfaces such that the sheet does not interfere with the contact of the dental surfaces, and utilizing the sheet to support dental materials, such as supporting restorative composite, impression materials, and so on. The sheet is preferably comprised of polytetrafluoroethylene.
    Type: Grant
    Filed: December 9, 2006
    Date of Patent: October 5, 2010
    Inventor: Eric J. Knutson
  • Patent number: 7744370
    Abstract: The dental device for insertion of a crown is a tool for marking an occlusally reduced tooth prior to application of a crown thereon, and for testing whether the tooth has been sufficiently reduced for proper application of the crown. The dental device includes a marking portion frangibly joined to a resistance testing portion. The marking portion includes a marking layer formed of a transferable material so that, following occlusal reduction of the tooth, the marking portion is separated from the resistance testing portion, and the marking layer is positioned against an upper surface of the tooth. The patient bites down on the marking layer to mark raised regions of the upper surface of the tooth, and subsequently bites down on the resistance testing portion, to test if the tooth has been sufficiently reduced for application of a crown thereon.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: June 29, 2010
    Inventors: Jeffrey P. Jaklinski, John Lechel
  • Publication number: 20100119988
    Abstract: Attention has been focused on combining two types of dental impression materials of different qualities which has not been considered in conventional combined impression, and a dental impression film and a method of manufacturing the dental impression film are provided for making the two parts joinable. The dental impression film is formed of a polyethylene film and polyethylene/polyester films. The polyethylene film has, laminated by thermal adhesion on opposite surfaces thereof, respectively, the polyethylene/polyester films having bonding capability between a silicone impression material and an alginate impression material. The dental impression film having bonding capability is interposed between the silicone impression material and alginate impression material.
    Type: Application
    Filed: October 28, 2008
    Publication date: May 13, 2010
    Inventor: Yasuhiro Fukuhara
  • Publication number: 20100099056
    Abstract: The occlusal position of a patient is measured by means of light transmission through a layer of a polysiloxane which is not cross-linked. This material forms an exceptionally accurate impression of a patient's bite essentially instantaneously and enables subsequent recording and analysis of the bite in a matter of minutes.
    Type: Application
    Filed: October 22, 2008
    Publication date: April 22, 2010
    Inventors: Philip L. Millstein, Edward W. Merrill
  • Patent number: 7699607
    Abstract: This present invention concerns a locating and measuring device of facial anatomical parameters of a human face. It includes in particular a frame intended to be positioned in front of a face, and a bite yoke mounted on a cross member of the frame, intended to be inserted into the mouth and bitten onto by a patient. In a manner that is characteristic, the invention also includes materialization and positioning for an incisive line, materialization and positioning for a bi-pupillary line, and materialization and positioning for a Camper's plane on at least one profile of the face. The device of the invention finds a particular application in the fields of dental and periodontal reconstruction and repair in accordance with the aesthetic harmony of the face.
    Type: Grant
    Filed: February 1, 2008
    Date of Patent: April 20, 2010
    Inventor: Patrice Margossian
  • Publication number: 20100067756
    Abstract: The attenuation and other optical properties of a medium are exploited to measure a thickness of the medium between a sensor and a target surface. Disclosed herein are various mediums, arrangements of hardware, and processing techniques that can be used to capture these thickness measurements and obtain three-dimensional images of the target surface in a variety of imaging contexts. This includes general techniques for imaging interior/concave surfaces as well as exterior/convex surfaces, as well as specific adaptations of these techniques to imaging ear canals, human dentition, and so forth.
    Type: Application
    Filed: July 24, 2009
    Publication date: March 18, 2010
    Inventors: Douglas P. Hart, Federico Frigerio, Davide M. Marini
  • Publication number: 20090246729
    Abstract: An integrated modular dental measuring apparatus and method of use for producing edentulous dentures. The apparatus is a set of components including a lower dental tray having a removable modular contact plate with an upwardly extending shoulder surrounding a tapered opening, a ball nut retained in the tapered opening, and a post adjustably secured to the ball nut. A modular striking plate may be removably attached to an upper dental tray or an integrated striking sector on a bottom surface of the upper dental tray is utilized to accurately obtain an established occlusal vertical and centric relation positions. The contact plate and striking plate are each configured as snap-in components to the respective trays. One size contact plate and one size striking plate fit on all sizes of dental trays. Additionally, the contact plate may be utilized as a spacer between the dental trays once the post and ball nut are removed.
    Type: Application
    Filed: February 26, 2009
    Publication date: October 1, 2009
    Applicant: Global Dental Impression Trays, Inc.
    Inventor: Joseph J. Massad
  • Publication number: 20090233255
    Abstract: The present invention discloses a set of dental arches comprising: an upper arch (1) formed by upper anterior (2) and posterior (3) artificial teeth and another lower arch (5) formed by lower anterior (6) and posterior (7) artificial teeth mounted in an orderly fashion on flexible bases (4) and (8) constructed of elastomeric resin in the form of an arch, having a three-dimensional movement capacity to enable adaptation to the anatomy and physiology of edentulous patients; the base material also allows the adjustment of each tooth individually, through changes of position, inclination or alignment, in a simple manner, thus producing custom prosthodontics; its use in the confection processes of removable complete and partial dentures saves time, labor and cost compared to traditional methods.
    Type: Application
    Filed: May 25, 2007
    Publication date: September 17, 2009
    Applicant: UNIVERSIDADE ESTADUAL DE CAMPINAS- UNICAMP
    Inventors: Almenara De Souza Fonseca Silva, Jose Luiz Lino Trochmann, Leila Peres, Lucia Helena Innocentini Mei, Simonides Consani
  • Publication number: 20090202958
    Abstract: Processes for marking contacts of teeth, utilizing a soft polymer sheet. The sheet clearly marks contacts to facilitate disclosure and adjustment of interferences. An arch (10) sheet is provided to mark and adjust an entire arch of teeth. An adhesive (16) is provided to affix the sheet to the surfaces of the teeth.
    Type: Application
    Filed: February 11, 2008
    Publication date: August 13, 2009
    Inventor: Eric J. Knutson
  • Patent number: 7544060
    Abstract: The dental device of the present invention is used to transfer information about registration of an anterior midline between central incisors and a horizontal plane of the teeth after the teeth have been drilled and final impressions have been taken. This information is communicated to the lab technician for fabrication of crowns and or veneers. The dental device allows the dentist to consistently communicate the location and position of the anterior midlines and horizontal plane to the dental laboratory. The dental device is placed between the patient's upper and lower teeth after tooth preparation. The dental device is positioned in a correct midline and horizontal plane. After alignment, the dental device is secured to the teeth using a bite registration material. The dental device is forwarded to the lab technician together with the model of the teeth after preparation.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: June 9, 2009
    Inventor: Carlos Meulener
  • Publication number: 20090061392
    Abstract: A unit to be arranged in the oral space, which unit can, in particular, be a diagnosis and/or therapeutic treatment device. If the external shell of a unit of this type gets damaged, there is a risk of parts of the external shell detaching or of harmful substances leaking from the interior of the unit. In order to detect damage of this type as early as possible, the unit is provided with an indicator substance that is enclosed within the external shell and can be detected outside of the external shell in case the external shell breaks. The use of edible bitter substances for detecting damage on diagnostic and/or therapeutic units used in the oral spaces as well as to the use of edible dyes for detecting damage on diagnostic and/or therapeutic units used in the oral space are also provided. The dye is provided on the interior of the corresponding unit to leak out in case the corresponding unit gets damaged.
    Type: Application
    Filed: February 14, 2007
    Publication date: March 5, 2009
    Inventor: Alexander Scholz
  • Patent number: 7452207
    Abstract: The present invention provides methods and devices for determining an axis of upper and lower jaw articulation of a patient and modeling jaw movement about such an axis, particularly with the use of computerized visual images. The methods comprise providing digital data sets of tooth and bite configuration information which may be used to determine an estimated condylar axis of rotation for a patient. A number of data sets may be acquired and utilized for such estimations. Data sets may be obtained with the use of bite registers. Such registers may be formed by a number of methods and device designs of the present invention. The resulting digital data sets and axis of articulation may then be utilized to generate animated visual images of a patient's jaws in various bite configurations throughout a given rotation around the determined axis.
    Type: Grant
    Filed: April 25, 2005
    Date of Patent: November 18, 2008
    Assignee: Align Technology, Inc.
    Inventors: Ross J. Miller, Eric Kuo, Daniel E. Falvey, Andrew H. Trosien
  • Publication number: 20080206705
    Abstract: Method and system for managing multiple impressions of a patient's jaw for an orthodontic treatment is provided. The method includes scanning at least a first impression and a second impression of same jaw for the orthodontic treatment; determining if the first jaw impression and the second jaw impression have distortion in different areas; selecting the first jaw impression or the second jaw impression as a base impression; and replacing a distorted tooth data from the base impression with data for the same tooth from a non-base impression. The method also includes scanning at least a first jaw impression for the orthodontic treatment; scanning a bite impression for the orthodontic treatment; matching the scanned first jaw impression with the scanned bite impression; comparing bite information with a tooth occlusal surface; and determining if reconstruction is to be performed on the tooth occlusal surface.
    Type: Application
    Filed: February 26, 2007
    Publication date: August 28, 2008
    Inventors: Srinivas Kaza, Bob Grove
  • Patent number: 7335022
    Abstract: A dental bite impression wafer that also captures the user's saliva and cheek cells. The wafer is made from a thermoplastic material that softens when warmed and that defines opposed posterior edges. The wafer carries one or more structures such as posts that are adapted to capture and retain the user's saliva and cheek cells.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: February 26, 2008
    Inventor: David A. Tesini
  • Patent number: 7288075
    Abstract: Impression devices are provided for making an impression of a desired feature. The impression devices include: a flexible bladder having a cavity formed therein, the flexible bladder being capable of conforming to the details of the desired feature; a rheological material, such as a magnetorheological fluid, disposed in the cavity of the flexible bladder; and an activator for applying an external stimulus to the rheological material to change the state of the rheological material and thereby capture an impression of the desired feature.
    Type: Grant
    Filed: June 27, 2002
    Date of Patent: October 30, 2007
    Assignee: Ethicon, Inc.
    Inventors: Shailendra K. Parihar, Thomas P. Ryan, Timothy Dietz, Parris S. Wellman, Kevin S. Weadock, T. Anh Le, Peter Douglas, Simon Cohn, Daniel Gordon, Rajesh Pendekanti, Raghuveer Basude, Robert S. Casar, Howard A. Stone
  • Patent number: 7252507
    Abstract: A method and article for providing identification means, comprising taking an impression of teeth with a thermoplastic wafer of special configuration such that the wafer receives an impression which gives the size, shape and anatomy of each tooth from the occlusal surface to the gum line, and also provides information on tooth position and jaw relationship, to provide maximum information for identification. The wafer also acquires salivary components which, for an indeterminate amount of time, allows for DNA analysis testing or scent dog tracing. The wafer with the impression is then stored for use in case of need, preferably in a container which is sealed so that tampering with the contents can be detected.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: August 7, 2007
    Inventor: David A. Tesini
  • Patent number: 7147466
    Abstract: A novel system for discerning pressure points in mouthpieces, namely orthodontic aligners. The system includes the steps of applying a colored gel to a light transmissive or clear mouthpiece-type aligner, mounting the aligner to the upper and/or lower teeth of the patient, and observing through the mouthpiece color variations generated by variations in gel density, wherein pressure points are indicated as lighter colors due to less gel density and spaces are indicated as deeper color, due to higher density of the colored gel. In an alternative embodiment a second gel incorporating rupturable spheres incorporating a second composition is utilized in the present system such that pressure upon the gel releases the second composition, which would be formulated to combine with the first gel and result in a color change, either due to a chemical reaction, or due to a mixing of two colors to produce an identifying color.
    Type: Grant
    Filed: October 24, 2003
    Date of Patent: December 12, 2006
    Assignee: Dentsply International, Inc.
    Inventors: J. Keith Hilliard, Dann A. Schwartz
  • Patent number: 7121148
    Abstract: The invention relates to a force measuring transducer with an oscillator (1) with an inductor (2) formed by a primary winding and a gauge (11) with a secondary winding (30) which is connected electroconductively to the gauge (11) and which is disposed in transformer coupling with the inductor (2) of the oscillator (1). Action of a force on the gauge (11) changes the impedance of the gauge (11) and the load of the inductively coupled secondary winding (30). An evaluation circuit (14) is used to determine the resulting frequency change of the oscillator (1) which is proportional to the force acting on the gauge (11).
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: October 17, 2006
    Assignee: Occluscan AG
    Inventors: Bruno Starek, Franz Vekoerrer, Helmut Purner
  • Patent number: 7118375
    Abstract: Systems and methods for imaging a dental occlusal registration impression; developing a digital 3D surface contour model of the occlusal registration impression from the image data; electronically transferring the data representing the digital 3D surface contour model of the occlusal registration impression; fabricating a physical replicate of the occlusal registration impression; correlating features on upper and lower jaw dental models with features on the replicate occlusal registration impression model; and determining occlusal alignment of the upper and lower jaw dental models using the replicate occlusal registration impression model.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: October 10, 2006
    Inventors: Duane Milford Durbin, Dennis Arthur Durbin
  • Patent number: 6979195
    Abstract: The present invention relates generally to dental devices, and more particularly, but not by way of limitation, to a dental device for forming a dental appliance. The dental appliance is used to position the mandible and the maxilla in centric relation and methods of making and using same.
    Type: Grant
    Filed: November 7, 2003
    Date of Patent: December 27, 2005
    Inventor: Floyd E. Skarky
  • Patent number: 6948936
    Abstract: The present invention provides methods and devices for determining an axis of upper and lower jaw articulation of a patient and modeling jaw movement about such an axis, particularly with the use of computerized visual images. The methods comprise providing digital data sets of tooth and bite configuration information which may be used to determine an estimated condylar axis of rotation for a patient. A number of data sets may be acquired and utilized for such estimations. Data sets may be obtained with the use of bite registers. Such registers may be formed by a number of methods and device designs of the present invention. The resulting digital data sets and axis of articulation may then be utilized to generate animated visual images of a patient's jaws in various bite configurations throughout a given rotation around the determined axis.
    Type: Grant
    Filed: April 24, 2003
    Date of Patent: September 27, 2005
    Assignee: Align Technology, Inc.
    Inventors: Ross J. Miller, Eric Kuo, Daniel E. Falvey, Andrew H. Trosien
  • Patent number: 6945778
    Abstract: A customized dental tray comprising ULDPE is formed using a person's own teeth as a template, or using a stone model of the person's teeth. A preformed dental tray or sheet comprising ULDPE is heated to become plastically deformable and placed over at least a portion of the person's teeth in order to form an impression of the person's teeth and yield an intermediate customized dental tray. Upon cooling sufficiently, the intermediate tray is removed from the persons' mouth and trimmed as needed to yield a finished customized tray corresponding to the person's teeth. The performed tray or sheet preferably comprises ULDPE, which yields a highly flexible and resilient final tray, although they may also contain other polymers or blends. The customized dental tray is useful for teeth bleaching and other dental treatments known in the art.
    Type: Grant
    Filed: August 20, 2002
    Date of Patent: September 20, 2005
    Assignee: Ultradent Products, Inc.
    Inventors: Scott Jacobs, Scot N. Andersen
  • Patent number: 6932602
    Abstract: A method for performing a dental articulation test and a related test kit are provided. In preferred embodiments, the method includes applying a first chemical component of a binary marking system to at least one tooth of a patient or articulation device. A substrate sheet that contains a coating of microcapsules disposed on at least one side thereof, with at least some of the microcapsules containing a second chemical component of the binary marking system is inserted into the patient's mouth or the articulation device. The first and second arches of the patient or articulation device are then caused to occlude over the substrate, thereby causing formation of a visible mark at the occlusion contact points. The dental articulation kit includes the substrate sheet, an applicator for applying the first chemical component of the binary marking system to teeth, and a quantity of the first chemical component of the binary marking system sufficient to apply to at least one tooth.
    Type: Grant
    Filed: April 22, 2003
    Date of Patent: August 23, 2005
    Assignee: Appleton Papers Inc.
    Inventors: Timothy Hamilton, Ted E. Goodwin
  • Publication number: 20040096802
    Abstract: An aligning dental impression transfer method and apparatus is described in which the transfer of the bite registration in centric occlusion is accurately preserved from a triple tray impression to the positioning upon an articulator. At each stage of the casting of a working model the spatial relationship of existing dental structures are preserved. The cast model of the upper and lower dentition a in perfect registration on the articulator. In the process of manufacturing molded and machined parts, the limitations in dimensional accuracy exceed those desired by the dental patient. The patient is aware of binding or interfering “high spots” greater than 5 microns. The modern cavity mold and resulting thermoplastic parts cannot be expected to hold these dimensions. These variations in dimensional tolerance are eliminated in this invention. The articulator is equipped with an upper and lower frame with magnetic or other clamping means to hold the pin blocks in preliminary alignment.
    Type: Application
    Filed: November 16, 2002
    Publication date: May 20, 2004
    Inventor: Neal B. Gittleman
  • Publication number: 20030224319
    Abstract: The subject of the invention is a kit for taking a dental impression. The kit comprises a thermoplastic material for bite registration on one jaw side, an impression compound for taking an impression of the opposite jaw side, and a tray for receiving the thermoplastic material on one side and the impression compound on an opposite side thereof. The tray includes a pair of opposing side walls and a flexible membrane extending therebetween, the flexible membrane defines a first receiving area and a second receiving area, the thermoplastic material is adapted to be molded to the flexible membrane and the side walls and extend past each of the side walls in order to impart sufficient rigidity to the tray.
    Type: Application
    Filed: May 28, 2002
    Publication date: December 4, 2003
    Inventor: Katherine Liddle