Articulator Or Attachment Therefor Patents (Class 433/54)
  • Publication number: 20140342306
    Abstract: This invention is directed to a positioning jig for preparing a two or more of adjacent teeth for a dental prosthesis comprising a member with (i) three or more parallel bores in the member and (ii) one or more means to attach the member to a dental articulator. The invention is also directed to methods of use of the position jig such as to prepare a series of aligned holes in teeth or aligned holes mockup of a dental bridge for a prosthesis.
    Type: Application
    Filed: November 30, 2012
    Publication date: November 20, 2014
    Inventor: Todd H. LERNER
  • Publication number: 20140242539
    Abstract: Disclosed is a method for virtually designing the attachment of a manufactured dental model of a patient's set of teeth in a physical dental articulator by means of one or more kinds of spacer elements, where the method comprises: obtaining a virtual 3D dental model of the patient's set of teeth, where the virtual 3D dental model is provided by means of 3D scanning; providing a virtual dental articulator type corresponding to a physical dental articulator, where the dental articulator comprises an upper arm and a lower arm and has a known articulator height, which is the distance between the upper arm and the lower arm in the static position of the dental articulator; providing a minimum height of the dental model, where the height of the dental model is the height of an upper part and the height of a lower part of the dental model; providing one or more kinds of virtual spacer elements with predetermined heights, where each kind of virtual spacer element corresponds to a physical spacer element; determini
    Type: Application
    Filed: October 5, 2012
    Publication date: August 28, 2014
    Applicant: 3Shape A/S
    Inventors: Rune Fisker, Sven Nonboe
  • Patent number: 8814564
    Abstract: A dental articulator is provided in which at least one of the two arms thereof has a base member that is articulated with respect to a bracket element onto which a dental model may be mounted, allowing independent movement of the dental model with respect to the pivot axis hingedly linking the arms.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: August 26, 2014
    Assignee: Cadent Ltd.
    Inventors: Rami Boltanski, Nir Makmel, Avi Kopelman
  • Patent number: 8753119
    Abstract: A mounting method of dental cast is disclosed. The mounting method includes the steps of providing an articulator and a label module having at least a label and at least a reference object, generating a label coordinate information in accordance with the reference object and the label, providing a midface and mandible image information and generating a landmark coordinate information in accordance with a plurality of landmarks of the midface and mandible image information, generating a structure coordinate information in accordance with a plurality of structures of the articulator and the label, disposing a first dental cast connected with the label module on the articulator, and providing a detecting device to detect the label and adjust the position of the first dental cast in accordance with the midface and mandible image information, the label coordinate information, and the structure coordinate information.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: June 17, 2014
    Assignee: National Cheng Kung University
    Inventors: Jing-Jing Fang, Tung-Yiu Wong, Chia-Chang Tsai, Tai-Hong Kuo
  • Patent number: 8747110
    Abstract: An orthognathic planning system applied with at least a dental cast includes an articulator, a detecting device, at least a label module and a data processing device. The dental cast is mounted on the articulator. The detecting device is disposed with respect to the articulator. The label module has at least a label and is disposed on the dental cast. The data processing device is signally connected with the detecting device and stores midface and mandible image data. The detecting device traces the label and provides position data, and the data processing device provides orthognathic planning data in accordance with the position data and the midface and mandible image data. The present invention also discloses an orthognathic planning method.
    Type: Grant
    Filed: July 6, 2012
    Date of Patent: June 10, 2014
    Assignee: National Cheng Kung University
    Inventors: Jing-Jing Fang, Tung-Yiu Wong, Tung-Chin Wu, Tai-Hong Kuo
  • Patent number: 8738340
    Abstract: The systems and methods disclosed herein employ a combination of digital three-dimensional modeling and rapid fabrication technologies to provide pre-indexed, pre-registered, and/or precut components for articulated dental models. Dental articulators and components of dental models as described herein use a positioning key to encode positional information for components of the dental model, and/or a reference grid on mounting surfaces to enforce local accuracy of fabricated parts against a fixed reference array.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: May 27, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick Colm Dunne, Eric B. Paley, Micah J. Rosenbloom, Michael Patrick Girard
  • Patent number: 8556626
    Abstract: One embodiments of the present subject matter include a method that includes fixing a top pantograph to a patient via clutches to the top teeth of the patient, fixing a bottom pantograph to a patient via clutches to the bottom teeth of the patient, optically monitoring the bite of the patient by monitoring the relation of the top pantograph to the bottom pantograph during a bite cycle, storing data relating to the actual bite storing patient data including a three-dimensional model including a top teeth model and a bottom teeth model, storing a digital top pantograph model associated with the top pantograph, storing a digital bottom pantograph model associated with the bottom pantograph, digitally pairing the bite data, the top pantograph model and the bottom pantograph model to the patient data, and digitally modeling the bite.
    Type: Grant
    Filed: November 7, 2012
    Date of Patent: October 15, 2013
    Assignee: NorthPointe Holding Company LLC
    Inventor: Roger A. Evenson
  • Patent number: 8459995
    Abstract: A pinless dental articulator includes a work tray, a retention pocket, and a monorail formed by a plurality of upwardly tapering cylinders which allow jelly or stone to slide out of the retention pocket when the work tray is turned upside down. The work tray has a ledge which stabilizes a rotatable arm that retains the jelly or stone in the retention pocket. A method of using the articulator includes the steps of installing the locking arm onto the stabilizing ledge of the work tray, rotating the locking arm into a closed position on the stabilizing ledge, pouring jelly into the retention pocket, installing a height-adjusting post in the work tray, tightening a fastener against the post in order to keep the post in an upright position, and placing a small tray with at least one negative tooth impression on top of the jelly.
    Type: Grant
    Filed: July 16, 2012
    Date of Patent: June 11, 2013
    Inventor: Ilya Aronov
  • Patent number: 8374714
    Abstract: The systems and methods disclosed herein employ a combination of digital three-dimensional modeling and rapid fabrication technologies to provide pre-indexed, pre-registered, and/or precut components for articulated dental models. Dental articulators and components of dental models as described herein use a positioning key to encode positional information for components of the dental model, and/or a reference grid on mounting surfaces to enforce local accuracy of fabricated parts against a fixed reference array.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: February 12, 2013
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick Colm Dunne, Eric B. Paley, Micah J. Rosenbloom, Michael Patrick Girard
  • Patent number: 8348667
    Abstract: One embodiments of the present subject matter include a method that includes fixing a top pantograph to a patient via clutches to the top teeth of the patient, fixing a bottom pantograph to a patient via clutches to the bottom teeth of the patient, optically monitoring the bite of the patient by monitoring the relation of the top pantograph to the bottom pantograph during a bite cycle, storing data relating to the actual bite, fitting the top pantograph and bottom pantograph to casts that are fixed to an automatically adjustable articulator and replicating the bite by moving the automatically adjustable articulator and optically monitoring said movement to replicate the monitored bite using feedback by comparing optical data relating to the replicated bite to the data relating to the actual bite.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: January 8, 2013
    Assignee: NorthPointe Holding Company LLC
    Inventor: Roger A. Evenson
  • Patent number: 8342843
    Abstract: A dental model articulator of the type that has separable complementary articulation members is connected to a registration object having compatible complementary articulation members. The dental arches of each dental model articulator half is scanned with the reference object to give the axis of the articulator model. This facilitates generating a virtual dental model.
    Type: Grant
    Filed: May 8, 2008
    Date of Patent: January 1, 2013
    Assignee: Dental Wings, Inc.
    Inventors: Jean-Marc Perot, Robin Provost
  • Publication number: 20120329004
    Abstract: The present invention relates to an articulator used for the purpose of checking the alignment of dentures, by coupling together models of the upper and lower jaws, in order to provide a simple movement of the upper and lower jaws, minimize occlusal errors, and accurately mount the upper and lower jaws on the occlusion surface. Conventional articulators imitate the form of upper and lower jaw movements, wherein a reference axis is established and folded in accordance with a condyle, however, the process completely eliminates muscle movement, and inevitably leads to occlusal errors of the upper and lower jaw movement. Consequently, the problem with conventional articulators is the need for post-processing, regardless of the extent of reduction of the occlusal errors through the use of diverse assisting means. In addition, while accurate occlusion cannot be achieved, conventional articulators have a structure that is too complicated and difficult to operate.
    Type: Application
    Filed: April 16, 2010
    Publication date: December 27, 2012
    Inventors: Chae Bung Lee, Se Hun Kim
  • Publication number: 20120329003
    Abstract: The present invention relates to an articulator for the purpose of checking the alignment of dentures, by coupling together models of the upper and a lower jaws, in order to provide a simple movement of the upper and lower jaws, minimize occlusal errors, and accurately mount the upper and lower jaws onto the occlusion surface. Conventional articulators imitate the form of upper and lower jaw movements, wherein a reference axis is established and folded in accordance with a condyle, however, the process completely eliminates muscle movement, and inevitably leads to occlusal errors during upper and lower jaw movement. Consequently, the problem with conventional articulators is the need for post-processing, regardless of the extent of reduction of the occlusal errors through the use of diverse assisting means. In addition, while accurate occlusion cannot be achieved, conventional articulators have a structure that is too complicated and difficult to operate.
    Type: Application
    Filed: April 16, 2010
    Publication date: December 27, 2012
    Inventors: Chae Bung Lee, Se Hun Kim
  • Patent number: 8287276
    Abstract: The invention relates to a method and a registering system for the transfer of a jaw model in relation to a hinge axis, for example, in an articulator, and to a connection device for connecting a lower jaw adapter (1) to a measuring carrier (4), and a bite carrier (3) for producing a bite key. The invention is characterized in that the transfer of the mandibular joint geometry, especially the exact position of the hinge axis of the patient, can be carried out in a state of assembly or an articulator using only a hinge axis determination relative to the lower jaw of the patient. The transfer of the facial arc required until now in prior art is rendered superfluous by the invention. Moreover, the possibilities of use of the transfer in relation to the hinge axis are extended, modularised and simultaneously simplified and accelerated. Sources of error are eliminated, the expenditure on equipment and costs of the transfer of the model can be critically reduced.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: October 16, 2012
    Assignee: Dental Innovation GmbH
    Inventor: Rolf Klett
  • Patent number: 8282394
    Abstract: A visible coding of components of an articulator apparatus that mount maxillary and mandible casts indicates the relative correspondence between post-treatment goals and the present locations of a person's teeth and jaws. From another aspect, the visible coding indicates at least a direction, and preferably, a direction and a distance, which a person's teeth and/or jaws must be moved to achieve the goals.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: October 9, 2012
    Inventor: Lawrence F. Andrews
  • Publication number: 20120164595
    Abstract: A denture articulator is provided for coupling denture casts to allow for occlusal adjustment of the casts. The articulator includes a base, a cross bar, and a top. The casts are mounted to the top and base by cast holder seats or cast retainer seats for simulation of mastication and occlusal adjustment. The top allows a user to adjust the vertical location of the cast and also allows the user to adjust the elevation of the cast.
    Type: Application
    Filed: December 23, 2010
    Publication date: June 28, 2012
    Inventor: CHIH-CHIANG SU
  • Patent number: 8021149
    Abstract: An apparatus to replicate and analyze movement of a mandible relative to a maxilla with dental casts thereof includes a base frame, an arm connected to the base frame and a suspension assembly positionable by a plurality of electro-mechanical actuators. The arm connects to the base frame and supports the dental cast of the maxilla in a fixed position relative to the base frame. The suspension assembly, having opposing first and second sides, supports the dental cast of the mandible in working relation to the dental cast of the maxilla. The plurality of actuators each selectively impart movement to the sides of the suspension assembly such that the movement of the mandible obtained during a recording process can be replicated on the apparatus in real time.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: September 20, 2011
    Assignee: Gnath Tech Dental Systems, LLC
    Inventors: Yevsey Gutman, John Joseph Keller
  • Patent number: 7942671
    Abstract: The invention provides a method for creating a physical teeth model. The method comprises the following steps: providing a virtual three dimensional (3D) representation of a patient's dentition that comprises at least a region of the teeth that includes a tooth stump on which a crown is to be fitted or a region on to which a bridge is to be fitted; and preparing a physical model of the jaws of a subject from a blank, based on information from said virtual 3D image.
    Type: Grant
    Filed: December 5, 2006
    Date of Patent: May 17, 2011
    Assignee: Cadent Ltd.
    Inventors: Eldad Taub, Avi Kopelman
  • Patent number: 7922490
    Abstract: A method produces a base for physical tooth models. The method includes providing one or more cast materials in a container, pressing the underside of the physical tooth models into the one or more cast materials to produce impressions in the one or more cast materials, and solidifying the one or more cast materials having the impressions to produce the base that is adapted to receive the physical tooth models.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: April 12, 2011
    Assignee: Align Technology, Inc.
    Inventor: Huafeng Wen
  • 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
  • Publication number: 20110008747
    Abstract: A method and apparatus for making a dental appliance of a patient is provided. An electronic scan is made to collect data about the anatomy of the patient's mouth. The first computer digitally receives the data processes it with data of the patient to create facebow data, and transmitting the facebow data to a second computer, which transfers the facebow data to a second articulator. The second articulator duplicates the set up of the first articulator based on that data.
    Type: Application
    Filed: February 20, 2009
    Publication date: January 13, 2011
    Inventors: Prasad Adusumilli, Stanley J. Lech, Zvi G. Loewy
  • Publication number: 20100240001
    Abstract: A device producing a computer-processable, three-dimensional image of a dental model includes a scanner that generates scanned data and an electronic memory unit, wherein the scanned data of the dental model that are captured by the scanner in a scanning area are stored. The device has a positioning area in which a temporomandibular joint movement simulator, preferably an articulator, with dental model halves of the dental model arranged therein can be arranged such that at least sections of the TMJ movement simulator can be housed or are housed in the scanning area of the scanner.
    Type: Application
    Filed: March 18, 2010
    Publication date: September 23, 2010
    Inventor: Heinrich Steger
  • Publication number: 20100151410
    Abstract: The systems and methods disclosed herein employ a combination of digital three-dimensional modeling and rapid fabrication technologies to provide pre-indexed, pre-registered, and/or precut components for articulated dental models. Dental articulators and components of dental models as described herein use a positioning key to encode positional information for components of the dental model, and/or a reference grid on mounting surfaces to enforce local accuracy of fabricated parts against a fixed reference array.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Inventors: Patrick Colm Dunne, Erie B. Paley, Micah J. Rosenbloom, Michael Patrick Girard
  • Publication number: 20100151409
    Abstract: A normal lower jaw position of an examinee is determined.
    Type: Application
    Filed: January 14, 2010
    Publication date: June 17, 2010
    Inventor: Motonori MUNEHIRO
  • Patent number: 7698014
    Abstract: The systems and methods disclosed herein employ a combination of digital three-dimensional modeling and rapid fabrication technologies to provide pre-indexed, pre-registered, and/or precut components for articulated dental models. Dental articulators and components of dental models as described herein use a positioning key to encode positional information for components of the dental model, and/or a reference grid on mounting surfaces to enforce local accuracy of fabricated parts against a fixed reference array.
    Type: Grant
    Filed: August 28, 2006
    Date of Patent: April 13, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick Colm Dunne, Eric B. Paley, Micah J. Rosenbloom, Michael Patrick Girard
  • Patent number: 7690919
    Abstract: A dental modeling system for forming a dental model from a mold of at least a portion of a person's opposed upper and lower teeth. The modeling system includes dental articulator features that are integrated with opposing bases and dental model bases configured to receive removable tapered pins. The system also includes pin locators for improved alignment of teeth of the dental mold when creating the dental model. The pin locator can also include removable tapered pins for use in aligning with specific teeth of the dental mold.
    Type: Grant
    Filed: March 28, 2006
    Date of Patent: April 6, 2010
    Inventor: Ronald E. Huffman
  • Publication number: 20090305185
    Abstract: The present invention provides methods for designing dental articulator inserts from 3d dental data (4d datasets). These 4d datasets may be used directly to provide a jaw motion model suitable for enhanced CAD or, they may be used to derive mathematical expressions that are then used to design dental articulator inserts. The methods of the invention are based on acquiring time-based 3d data representing the upper and lower teeth. Each datum in the 4d dataset may therefore contain an accurate record of the relationship between the upper and lower arch in three dimensions.
    Type: Application
    Filed: May 5, 2009
    Publication date: December 10, 2009
    Inventor: Mark D. Lauren
  • Patent number: 7597555
    Abstract: An extender device connects between the halves of an articulator thereby increasing the width of the articulator while still allowing the articulator to be handled as one piece during its application to the models. In an embodiment, the extender device is of a snap-fit design.
    Type: Grant
    Filed: April 4, 2006
    Date of Patent: October 6, 2009
    Inventor: Edwin T. Van Valey
  • Patent number: 7399182
    Abstract: Methods and systems for establishing dental bite planes in relation to the relative vertical and horizontal planes of a patient's face and head. A U-shaped bite fork, which can be held by the patient's teeth or gums, may be attached to a connection system that attaches to adjustable orientation rods that may be aligned to the vertical and horizontal planes of the patient's face and head. Once the orientation rods are correctly adjusted, the orientation rods may be may be locked into place to preserve the orientation of the patient's bite plane relative to the facial reference planes.
    Type: Grant
    Filed: October 28, 2005
    Date of Patent: July 15, 2008
    Inventor: Juan Olivier
  • Publication number: 20080138763
    Abstract: The present invention broadly comprises a sleeve for a dental articulator having upper and lower jaws operatively arranged to simulate a human mouth, the sleeve including an enclosure having a mounting surface and at least one open end, the enclosure arranged to substantially cover and releasably engage the upper or lower jaw of the dental articulator. The sleeve may further include a releasable locking means operatively arranged to releasably secure the sleeve to the upper or lower jaw of the dental articulator. The present invention also broadly comprises a method of mounting a dental model on a dental articulator having upper and lower jaws arranged to simulate a human mouth, the method including the steps of releasably securing a sleeve on the upper or lower jaw of the dental articulator and fixedly securing the dental model to the sleeve. The method may further include the step of removing the sleeve from the upper or lower jaw of the dental articulator.
    Type: Application
    Filed: December 7, 2006
    Publication date: June 12, 2008
    Inventor: Mark S. Fernandez
  • Patent number: 7364429
    Abstract: Methods and systems for establishing dental bite planes in relation to the relative vertical and horizontal planes of a patient's face and head. A U-shaped bite fork, which can be held by the patient's teeth or gums, may be attached to a connection system that attaches to adjustable orientation rods that may be aligned to the vertical and horizontal planes of the patient's face and head. The generally perpendicular orientation rods may be used separately or locked together to form a combined unit. Once the orientation rods are correctly adjusted, the orientation rods may be may be locked into place to preserve the orientation of the patient's bite plane relative to the facial reference planes.
    Type: Grant
    Filed: March 22, 2006
    Date of Patent: April 29, 2008
    Inventor: Juan Olivier
  • Patent number: 7292716
    Abstract: A medical simulation apparatus is provided, which is capable of performing a simulation by correlating a three-dimensional image with an entity model. Coordinates of measurement marks MP1, MP2, MP3 on a surface of a lower dental arch model 62 in a coordinate system defined by three reference marks MK1, MK2, MK3 are acquired before and after displacement of the lower dental arch model 62. The coordinates thus acquired are converted into coordinates in a coordinate system defined by reference marks PK1, PK2, PK3 on the basis of a relationship between the reference marks MK1, MK2, MK3 and the reference marks PK1, PK2, PK3. Then, changes in the coordinates after displacement of the lower dental arch model 62 are determined, and a region preliminarily specified in a three-dimensional image displayed on a display 5 is displaced on the basis of the coordinate changes thus determined.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: November 6, 2007
    Assignee: Imagnosis Inc.
    Inventor: Han-Joon Kim
  • Patent number: 7273372
    Abstract: A dental articulator includes a lower jaw member, two pillars each extending vertically upwardly from the lower jaw member. The pillars each carry a ball, which correspond to a human mandibular condyle. The articulator further includes an upper jaw member disposed over the lower jaw member and carrying housings each provided on either side of a rear portion of said upper jaw member. Each of the balls is received in one of the housings so that the upper jaw member is vertically pivotable about the balls. Each housing includes a top wall coupled to the upper jaw member so as to be vertically movable relative to the upper jaw member while kept in contact with one of the balls and configured to be fixed to the upper jaw member at any position, and a rear wall coupled to the upper jaw member so as to be movable back and forth while kept in contact with one of the balls and configured to be fixed to the upper jaw member.
    Type: Grant
    Filed: June 7, 2005
    Date of Patent: September 25, 2007
    Inventor: Kenji Suwa
  • Patent number: 7210931
    Abstract: A premanufactured dental model base, and method, for supporting a cast dental model. The dental model base may be selectively connected to an articulator attachment plate which is adaptable for connecting the dental model base to a metal articulator. The same dental model base, at a user's option, may also be connected to a disposable articulator through a groove in the base that engages a disposable articulator tongue or by connecting a disposable articulator ball directly to a socket in the base. Thus, the dental model base may be conveniently used with either a metal articulator or a disposable articulator. In one embodiment, a concave socket at one end of the dental model base may engage an articulator ball or may engage the articulator attachment plate such that the attachment plate is detachably connected to the dental model base.
    Type: Grant
    Filed: July 7, 1999
    Date of Patent: May 1, 2007
    Inventor: Ronald E. Huffman
  • Patent number: 7156657
    Abstract: Articulator (1), which may precisely reproduce the occlusion height in the mouth in preparing a denture excellent in occlusion properties and favorable to a patient, comprises: lower frame (23) provided with lower jaw model support (21) in its upper surface, detachably mounted on which support (21) is a lower jaw model (20); stand (30) mounted in a rear portion of the lower frame (23) to extend upright; upper frame (13) provided with an upper jaw model support (11) in its lower surface, detachably mounted on which support (11) is an upper jaw model (10); circular plates (40) which vary in thickness and are provided in each of the supports (11, 21), the circular plates (40) being selected so as to enable a jaw model mounting surface of each of the supports (11, 21) to be movable in parallel with each of the frames (13, 23).
    Type: Grant
    Filed: September 25, 2003
    Date of Patent: January 2, 2007
    Inventor: Osamu Sasagawa
  • Patent number: 7128574
    Abstract: A handheld dental instrument has a horizontal level indicator and a vertical midline angle marker pin mounted on a bite line plate. The bite line plate has an arcuate front and a pair of protruding positioning pins. The bite line plate is rotatably mounted to a handle. The dental device is used in the formation of custom fitted lab fabricated dental prosthesis to improve dental bite registration recording of a patient's horizontal and vertical angles by the dentist and transferred to the dental lab technician to permit the formation of a prosthesis.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: October 31, 2006
    Inventor: Suzanne Adams
  • Patent number: 7112061
    Abstract: A dental articulator for connecting first and second dental models generally includes upper and lower arms hinging at their rear ends by a hinge. Each arm front end is connected by a coupling to a dental model. Each coupling generally includes a ball, a coupling, a rear socket and a fastener joining the coupling and rear socket such that the socket is movable rotationally, up and down, and side to side on the ball to a selected position. The hinge also provides for movements of the arms mimicking those of a human jaw. The lower arm means for adjusting the height of the hinge. Upper and lower dental models each include a holder of an incisor spacing assembly co-cast into the base. The holders hold an incisor pin for adjusting the vertical spacing between the fronts of the dental models.
    Type: Grant
    Filed: February 24, 2005
    Date of Patent: September 26, 2006
    Inventor: Lars Callne
  • Patent number: 7044734
    Abstract: A dental model base having a cast stone core and method for making same. The stone core is cast within an encasement member. The encasement member is adapted for connection to an articulator.
    Type: Grant
    Filed: January 26, 2001
    Date of Patent: May 16, 2006
    Inventor: Ronald E. Huffman
  • Patent number: 6646749
    Abstract: The invention relates to a device for the optical measurement of dental objects (30) with the use of topometric measurement procedures, having a rotatably mounted object receptacle (18) for holding the object (30) to be measured, a projector (11) for the projection of structured lighting patterns onto the object (30), a detection unit (12) for the detection of lighting structures projected onto the object (30), and an evaluation unit (20) for the calculation of the spatial structure of the object (30) to be measured. In order to improve operability, with the possibility of measuring individual parts of any geometry, the object receptacle (18) is mounted so as to be additionally pivotable around a pivot axis (B) arranged perpendicularly to the axis of rotation (A).
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: November 11, 2003
    Assignee: Kaltenbach & Voigt GmbH & Co.
    Inventors: Anton Bodenmiller, Bernd Breuckmann, Michael Stocker, Peter Munstermann, Michael Runge
  • Patent number: 6551102
    Abstract: Dental articulator apparatus includes a base articulator plate and a top articulator plate mounted on a support stanchion. On confronting surfaces of the top and base articulator plates are formed confronting mold cavities that receive dental “stone” mixed to a “workable” consistency so that the cavities can be filled with plastic “stone” to reconstruct from a “negative” impression a “positive” replica of a patient's teeth in stone. A press ejects the dental stone casting from the mold cavity in which it is formed. Embedded in the stone casting is a plastic sleeve. The plastic sleeve slidably accommodates a guide pin that passes through the cavity wall. To remove the dental stone casting from the mold cavity, the guide pin is first removed by sliding it out of the plastic sleeve. The ejected dental casting may be segmented to separate one stone “tooth” from another.
    Type: Grant
    Filed: July 2, 1997
    Date of Patent: April 22, 2003
    Assignee: Artic-A-Jig, LLC
    Inventors: David H. Morales, Marek J. Jez
  • Patent number: 6431871
    Abstract: The invention relates to a method for the computer-controlled production of dentures for restoring at least one tooth or jaw area, especially in terms of occlusal or incisal contact. The aim of the invention is to provide a simple means of producing dentures using CAD/CAM techniques, at the same time ensuring that the contact surfaces of the denture have the individual shape required so that absolutely no subsequent work is necessary.
    Type: Grant
    Filed: April 11, 2001
    Date of Patent: August 13, 2002
    Inventor: Ralph G. Luthardt
  • Patent number: 6247927
    Abstract: This invention provides a device for use in making dental models comprising a tray support a having an opening and a tray having an inferior surface with a projection from said inferior surface of said tray, wherein said projection of said tray fits into said opening in said tray support, said tray support having attached thereto hinge portions which are capable of interaction with hinge portions from a second tray support to form a completed hinge means.
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 19, 2001
    Assignee: Cbite, Inc.
    Inventor: Jose Walter
  • Patent number: 6193511
    Abstract: An apparatus and method for cleaning a dental articulator of the type including a body member having a plurality of precisely spaced holes extending therethrough. The apparatus including a base; and a plurality of precisely spaced pins extending from the base for insertion into the plurality of precisely spaced holes in the body member of the dental articulator to clean any debris from the plurality of precisely spaced holes in the body member of the dental articulator. The pins of the apparatus have the same precise spacing as the precisely spaced holes extending through the body member of the articulator and being sized to be inserted into and through the precisely spaced holes extending through the body member of the articulator. The method includes the step of forcing the pins of the apparatus through the precisely spaced holes extending through the body member of the articulator.
    Type: Grant
    Filed: March 24, 2000
    Date of Patent: February 27, 2001
    Inventor: Alan P. Hudson
  • Patent number: 6120290
    Abstract: In a jaw movement simulator in which an upper jaw model patterned after an upper jaw and a lower jaw model patterned after a lower jaw are mounted, and the lower jaw model is relatively moved with respect to the upper jaw model. A jaw movement simulation system causes the jaw movement simulator to reproduce a movement of the jaw of a test subject in accordance with data obtained through imaging a movement of the jaw of the test subject. The lower jaw model is fixed on an operating plate having 6 degree of freedom by parallel mechanism, and is moved on the basis of data obtained through a movement of the jaw of the human body, thereby simulating a movement of the jaw with great accuracy.
    Type: Grant
    Filed: October 15, 1998
    Date of Patent: September 19, 2000
    Assignee: Ono Sokki Co., LTD.
    Inventors: Susumu Fukushima, Masanao Ohashi, Akio Takamura
  • Patent number: 6106284
    Abstract: In one embodiment of the present invention, a dental cast tray assembly used to form a dental cast model comprises a base and a tray removably mounted on the base. The base includes a top surface, a flat bottom surface, a front wall, a rear wall and a plurality of projections formed on its top surface in a non-recurring, random pattern. Each of the plurality of projections is generally cylindrically-shaped and includes a convex free end. The tray includes a top surface adapted to support the dental cast model, a flat bottom surface, a front wall, a rear wall, a retention bar formed on its top surface and a plurality of openings formed in its bottom surface in the same non-recurring, random pattern in which the plurality of projections are disposed on the base. Each of the plurality of openings is defined by four sidewalls and is generally hourglass shaped in lateral cross-section. Two of the four sidewalls which define each of the plurality of openings include an elongated rib.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: August 22, 2000
    Inventors: Richard J. Cronin, Robert E. Vasile
  • Patent number: 6082998
    Abstract: A hand-held dental articulator, comprising a first frame, a second frame, and a support structure coupled to the first and second frames. The first frame is configured to accept for fixation thereto a first dental model. The second frame is configured to accept for fixation thereto a second dental model. The support structure is configured to support the first frame in opposing and overlapping relationship with the second frame. The support structure includes a manual surface that substantially conforms to the curvature of an operator's palm, such that the articulator is easily and comfortably held in the operator's hand during use.
    Type: Grant
    Filed: November 30, 1998
    Date of Patent: July 4, 2000
    Inventor: Larry Crosland
  • Patent number: 6015291
    Abstract: A dental articulator is disclosed, with condylar housings located in inteangeable fashion in mounts on the upper member of the dental articulator for accommodating and guiding condyles fixed to the lower member, where horizontal guide elements for the condyles for simulating the sagittal movements of the mandibular joint and Bennett guide elements for simulating the transverse movements of the mandibular joint are located in the condylar housing.
    Type: Grant
    Filed: June 25, 1998
    Date of Patent: January 18, 2000
    Assignees: Synthese Dentale Forschungs-und Entwicklungsgesellschaft mbH, Gamma Wisenschaftliche Fortbildungsgesellschaft mbh
    Inventors: Rudolf Cramer, Rudolf Slavicek
  • Patent number: 5967776
    Abstract: An occluded state and an opened state are reproduced on an occluding apparatus by a pair of upper and lower dentiform models using a bite at the time of occlusion and a bite at the time of opening which are extracted from a patient. For the reproduction, a D plate (Dual Mounting Plate) 9 is used. When the D plate 9 is used, it is possible to produce a C block which is integrated with an upper jaw teeth mode 4 by gypsum and an S1 block (or an S2 block) for a spacer which is mounted between the C block and an upper mounting plate 11 (12). The occluded state and the opened state can be reproduced using the dentiform models by replacing the S1 block and the S2 block with each other.
    Type: Grant
    Filed: August 17, 1998
    Date of Patent: October 19, 1999
    Inventor: Han-Joon Kim
  • Patent number: 5957688
    Abstract: A dental model articulator includes two hinge-jointed arms, each arm having segments connected at a hinge joint having mating elements, one integral to each segment of an arm. One element includes two cymbals that are coaxial on a major hinge axis and concave facing which resiliently capture between them a node of the mating element on the other segment which has the form of opposed, outwardly facing convexities. Multiaxial motion between the segments of each arm is accommodated by the rotation of the convexities of the node within detents at the apices of the cymbals. The extremities of each arm terminate in cylindrical rod-like elements that are parallel to the major hinge axis. The rods engage with transverse, cylindrical channels either cut-in, molded-in or affixed to the models. With the models positioned in centric occlusal relationship and the arms adjacently positioned and engaged, the four rods are adhesively fixed in the channels.
    Type: Grant
    Filed: August 21, 1997
    Date of Patent: September 28, 1999
    Inventor: Edwin T. Van Valey
  • Patent number: 5934901
    Abstract: A dental articulator structure for use in registration of a pair of casts of a dental model which are positioned in an opposing and spaced relationship. The articulator structure includes at least one axially rigid support member having opposing ends from which multi-piece cast attachment members may be orthogonally attached. The at least one axially rigid support member and the orthogonally attachable cast attachment members being an articulator structure that locates the axially rigid support member substantially close to the back molar face of the opposing pair of dental model casts such that confronting translational movement of the dental model casts is prevented in a plane parallel to the axially rigid support member, especially confronting translational movement in a region where back molars may be missing in a dental model.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 10, 1999
    Assignee: Dentsply Research & Development Corp.
    Inventor: Ronald E. Huffman