Including Means To Secure Workpiece Or Articulator Patents (Class 433/60)
  • Patent number: 10716634
    Abstract: An intraoral 3D scanner includes a probe light source configured to generate a probe light such that the probe light is transmitted towards the dental situation; a camera including an array of sensor elements, the camera being arranged such that the probe light from the dental situation is transmitted to the array of sensor elements, wherein the camera is configured to create images of the dental situation from which a point cloud is generated, and a guiding system configured to guide relative movement of the intraoral 3D scanner towards the dental situation, wherein the camera is part of the guiding system, the camera is configured to record images from which a relative position of the intraoral 3D scanner and the dental situation is determined, such that based on the relative position, the guiding system is configured to provide a positioning signal in the form of a positioning color code.
    Type: Grant
    Filed: December 30, 2019
    Date of Patent: July 21, 2020
    Assignee: 3SHAPE A/S
    Inventors: Nikolaj Deichmann, Rune Fisker
  • Patent number: 10551365
    Abstract: The present invention relates to a probe device for analyzing physical properties of food, having a teeth form, and more specifically, to a probe device for analyzing physical properties of food, having a teeth form, capable of objectively analyzing various physical properties felt by a person when chewing food, selecting and using a probe corresponding to a molar, a front tooth or a canine tooth, allowing a vertical motion of a press to be interlocked with a motion of the jaw joint, and allowing chewing experiments similar to real chewing of the human body to be carried out by enabling smooth occlusion of the upper jaw and the lower jaw.
    Type: Grant
    Filed: February 19, 2018
    Date of Patent: February 4, 2020
    Assignee: KOREA FOOD RESEARCH INSTITUTE
    Inventors: Dong June Park, Dong Man Kim, Chang Ho Lee, Yong Gi Chun, Ah Ra Cho, Kook Nam Pyun
  • Patent number: 10441389
    Abstract: An apparatus and system is disclosed for dental modeling. The apparatus includes a first tray positioned opposite a second tray and a dearticulating hinge coupling the first tray to the second tray. The dearticulating hinge includes a first hinging element coupled to one of the first tray and the second tray and a second hinging element coupled to the other of the first tray and the second tray. At least one of the first hinging element and the second hinging element includes a disengaging element configured to engage a spur to uncouple the first hinging element from the second hinging element upon extending the first tray and the second tray beyond a predefined angle relative to one another.
    Type: Grant
    Filed: April 29, 2013
    Date of Patent: October 15, 2019
    Inventor: Scott Eric Gallacher
  • Patent number: 9975294
    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: July 23, 2014
    Date of Patent: May 22, 2018
    Assignee: ALIGN TECHNOLOGY, INC.
    Inventors: Eldad Taub, Avi Kopelman
  • Patent number: 9888986
    Abstract: Articulator—semiadjustable, arcon with lower and upper parts that could be detached from one another or interconnected, with two mechanical joints. An upper horizontal shoulder (5) is fixed to an elevator (4), said elevator (4) is connected to an upper vertical body (11) and can move vertically to adjust the vertical position. A lower vertical body (10) is fixed to the base (1) and holds an axis with two joint heads (14). The upper vertical body (11) is pivotably connected to the lower vertical body (10) through the two joint heads (14), the distance between the joint heads can vary due to an elastic element (18), thus reproducing the lateral shift. The articulation between the vertical bodies (11 and 10) can be locked and unlocked via an elbow shaped piece (13). The articulator lower part has an incisive platform (8) with a position angle that could be adapted.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: February 13, 2018
    Assignee: F ARTICULATOR DENT EOOD
    Inventor: Andon Dimitrov Filtchev
  • Patent number: 9861458
    Abstract: A system for fabricating a dental restoration to restore a tooth at a restoration site in a dentition of a patient is disclosed. The dentition includes a restoration dental arch and an opposing dental arch. The restoration dental arch include the restoration site and the opposing dental arch is opposite the restoration dental arch. The system includes an impression apparatus, a motion capture apparatus, an interface apparatus, and a restoration design system. The impression apparatus is configured to capture an impression of the dentition of the patient. The motion capture apparatus is configured to capture a plurality of location data points that represent the locations of the opposing dental arch relative to the restoration dental arch. The interference model generation system is configured to generate an interference model for the restoration site. The restoration design system is for designing a restoration using the interference model.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: January 9, 2018
    Inventors: Bruce Willard Hultgren, Steven Mark Rzepecki
  • Patent number: 9820832
    Abstract: A vertically adjustable rotational stabilizer (10) for a disposable articulator is provided. The articulator comprises a hinged pair of support arms, each support arm having a proximal end and a distal end, with the proximal ends of the support arms being hingedly fitted together. Each arm defines an opening or cavity between its distal and proximal ends. The vertically adjustable rotational stabilizer (10), in broad terms, comprises at least one body (30, 66) secured or securable to the support arms (14, 16) and positioned substantially within the opening defined by the support arm, and an elongate member (56) being adjustable relative to the at least one body so as to adjust and fix the distance between the distal ends of the support arms (14, 16).
    Type: Grant
    Filed: February 18, 2013
    Date of Patent: November 21, 2017
    Assignee: Advanced Articulators (Pty) Ltd
    Inventor: Alan Michael Westdyk
  • Patent number: 9456882
    Abstract: Dental systems and methods related to impressionless dental modeling. A dental modeling system includes a dental model base and a mounting plate. The dental model base includes a plate support surface and a plurality of pin receiving apertures formed in the support surface. The mounting plate includes a plate portion positioned on the plate support surface and a plurality of pins extending into the pin receiving apertures to provide removable attachment of the mounting plate to the dental model base. The plate portion includes a model support surface configured to support a model of a person's teeth. The model may be formed directly on the model support surface using an impressionless technique. The model may be formed separately using an impressionless technique and then bonded to the model support surface.
    Type: Grant
    Filed: October 15, 2012
    Date of Patent: October 4, 2016
    Inventor: Ronald E. Huffman
  • Publication number: 20150111168
    Abstract: For producing dentures, a new method and a device render it possible to evaluate and shape movements generated by the individual jaw joints of the patient such that work with appropriate articulators becomes possible, which employ the individual jaw joints as articulation joints and thus carry out the identical movements. The known articulators are equipped with joint-space duplicates such that they can be employed with optimal equipment for the respective patient. The support pin is moved back as fixing pin in the retral space of the articulator such that it does not constitute an impediment when working on and when inspecting the jaw models arranged on the frame upper part and the frame base part. Moreover, setting different biting positions is made significantly easier, because the frame upper part is fixed to a swivel arch of the frame base part by an adjustable position stabilizer but can also be detached.
    Type: Application
    Filed: April 29, 2013
    Publication date: April 23, 2015
    Inventor: Andreas Vogel
  • Publication number: 20140370456
    Abstract: A device adapted for adjusting the inclination of an entire articulator in relation to a support plane includes a support element on the support plane, a fastening device attached to the articulator, and a mechanism configured to adjust the distance between the fastening device and the support element.
    Type: Application
    Filed: September 2, 2014
    Publication date: December 18, 2014
    Inventor: Riccardo MONTEFUSCO
  • Publication number: 20140234797
    Abstract: A dental articulator apparatus and method of forming dental casts utilizing a dental articulator having pivotally connected upper and lower arms that each have a ball socket which receives a ball at the outer end of a respective model anchor, the opposed end of which is cast into a dental model. The model anchor ball is adjustably secured in the ball socket of the articulator arms by a set screw coupled with a rotatable magnetic extension rod that are installed, removed, advanced, and retracted as a unit and allow relative rotation between the set screw and the extension rod to facilitate fitting and positioning the ball in the socket when the set screw is loosened, and eliminate manually installing and positioning separate small shims and plungers that can be accidentally dropped and lost.
    Type: Application
    Filed: February 15, 2013
    Publication date: August 21, 2014
    Inventor: Jean J. Elnajjar
  • Publication number: 20140080088
    Abstract: Provided is a dental articulator, and more particularly, a dental articulator, in which a tray keeping a shape and dimensions of a dental model is fitted into an upper portion of a base member to which the dental model is coupled. Particularly, the tray coupled to a top surface of the base member is geometrically similar to the base member, and includes a boundary wall formed along an edge thereof at a predetermined thickness and height, a through-hole formed inside the boundary wall, and a pin cap structure that has a plurality of fitting holes into which pins of a pin structure of the base member are fitted and which are continuously formed along an inner central axis of the through-hole and that is connected to opposite inner ends of the boundary wall. Further, each of the arcuate and linear boundary walls of the tray has a plaster anti-overflow flange formed at an upper end thereof and bent in an outward direction to prevent plaster from overflowing down.
    Type: Application
    Filed: June 20, 2011
    Publication date: March 20, 2014
    Applicants: DENTSOLL KOREA CO., LTD.
    Inventor: Yun soon Kim
  • Publication number: 20140017626
    Abstract: The invention relates to a two-part model plate array for producing dentures. The model plate array comprises a model plate having a dental crown model and sliding elements, and a model base plate having guides. The sliding elements can be inserted into the guides of the model base plate.
    Type: Application
    Filed: March 5, 2012
    Publication date: January 16, 2014
    Inventor: Matthias Funk
  • Publication number: 20130323676
    Abstract: The invention relates to a device for mounting and temporarily clamping dental casts using multi-functional receiving formwork elements that secure the dental casts, allowing the ratio measurements to be repeated as many times as desired using telescopic cylinders having a memory unit, said cylinders being manual and/or mechanical with screws and/or pneumatic and/or hydraulic and being used to secure, support and universally calibrate the multi-functional receiving formwork element of the dental articulator, thereby allowing the dental record of the casts to be created.
    Type: Application
    Filed: February 17, 2012
    Publication date: December 5, 2013
    Inventor: Havid Efren Abdala Pastor
  • Publication number: 20130252200
    Abstract: A plaster teeth model gripper and an articulator having the same that is capable of allowing a desired tooth to be attached to and detached from a plaster teeth model through only the cutting of a plaster teeth model, being simply manufactured, and being easily mounted on an articulator. The plaster teeth model gripper includes: a base plate disposed in a flat form on the underside of a gum of a teeth model; and a teeth model gum-supporting frame formed erectly on one surface of the base plate along the outer periphery of the gum of the teeth model in such a manner as to form a teeth model gum chamber open in a vertical direction from the base plate at the inside thereof.
    Type: Application
    Filed: May 17, 2012
    Publication date: September 26, 2013
    Inventor: Jae-Soo UM
  • Patent number: 8500448
    Abstract: A model of at least a part of a dental structure, an articulator, and methods of manufacturing such devices are provided. The model and the articulator can be used to approximate the natural movements of a jaw of a patient to facilitate preparation of a dental restoration. The model can include the dental structure, an interface, and at least one void extending from a reference surface of the interface inwardly toward the void. The articulator can include upper and lower portions on which models of upper and lower dental structures can be held. The upper and lower portions of the articulator can be configured to generally maintain a vertical alignment while at least one gap formed between respective first and second alignment components thereof allows horizontal movability of the upper and lower portions relative to each other to test the interfit of the models therebetween.
    Type: Grant
    Filed: October 18, 2007
    Date of Patent: August 6, 2013
    Assignee: Nobel Biocare Services AG
    Inventors: Per-Olof Karlsson, Jenny Fäldt, Matts Andersson
  • Patent number: 8484812
    Abstract: A dental cast stabilizer secures a dental cast to a dental cast articulator, and includes a fastening hole strap and a fastening post strap with a band body disposed therebetween. The fastening post strap includes a fastening post disposed thereon, and the fastening hole strap includes a fastening hole disposed thereon that is capable of receiving the fastening post or mounting plate thumb screw on an articulator.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: July 16, 2013
    Inventors: Michael Robert Meharry, Branden DaVault
  • Publication number: 20130164704
    Abstract: Provided is a dental articulator and a dental model fixing pin used for the same. The dental articulator has a base member for molding a dental model for a patient. The base member includes a protrusion bed that is formed on a top face of the base member along a central line in a lengthwise direction of the base member, comes into contact with a plaster dental model placed on the top face of the base member, and has a predetermined height, length, and width. The protrusion bed includes a plurality of pin fixing holes in a middle portion thereof, the plurality of pin fixing holes being spaced apart from one another at regular intervals and passing through an interior of the base member.
    Type: Application
    Filed: January 23, 2012
    Publication date: June 27, 2013
    Inventor: Yun soon KIM
  • 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
  • Publication number: 20130143177
    Abstract: A mechanical interfitting connector for repeatably connecting dental models of teeth to articulators without damaging the former. The connector may include a socket mountable to a model and a male member mountable to the articulator, wherein the male member enters and engages the socket. The socket may be adhered to the model or alternatively partially embedded therein. A screw may be passed through the socket and male member so as to leave a small marking on the dental model, thereby indexing the socket and model for subsequent mountings, and also to prevent disengagement of the male member from the socket. A supplementary plate may be provided to secure anchoring of the male member to the socket, and to shield plaster which has not fully hardened against damage during hardening.
    Type: Application
    Filed: December 5, 2011
    Publication date: June 6, 2013
    Inventor: ENZO GAMBACORTA
  • Publication number: 20130095449
    Abstract: A device adapted for adjusting the inclination of an entire articulator in relation to a support plane includes a support element on the support plane, a fastening device attached to the articulator, and a mechanism configured to adjust the distance between the fastening device and the support element.
    Type: Application
    Filed: April 13, 2011
    Publication date: April 18, 2013
    Inventor: Riccardo Montefusco
  • Patent number: 8419425
    Abstract: Disclosed is a dental model articulator configured to combine maxillary and mandibular dental model casts with each other. The dental model articulator includes a frame, an arm member rotatably and reciprocatively supported to the frame, an elastic bias unit frontward elastically pressing the arm member with respect to the frame, a first connecting unit formed in the arm member to be connected with the maxillary dental model cast, and a second connecting unit connected to the frame to move reciprocatively through at least one penetration hole and combined with the mandibular dental model cast.
    Type: Grant
    Filed: November 25, 2009
    Date of Patent: April 16, 2013
    Assignee: Bowon Dental Co., Ltd.
    Inventor: Chang Sik Hong
  • Patent number: 8398395
    Abstract: An accessory for use with a dental articulator, the accessory including a dental model holder, adapted and configured to hold a dental model, and a mounting assembly for removably affixing said dental model holder to a conventional dental model articulator. In some embodiments, the dental model holder includes a model support, a rear stop member perpendicular to the model support, and a model engaging member mounted in the model support and arranged to engage a dental model and urge it towards the stop member.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: March 19, 2013
    Assignee: Y. T. Dental Solutions Ltd
    Inventor: Itzhak Tenenbaum
  • Patent number: 8382686
    Abstract: An apparatus for use in dentistry to obtain positional data related to movement of a mandible about a maxilla comprises a rigid support frame for supporting a maxilla support member, a positionable mandibular member and sensing assemblies. The support member fixedly attaches to the support frame. The mandibular member is positionable proximate the maxilla member. The sensing assemblies attach to the support frame and connect to the mandibular member to obtain positional data related to the movement of the mandibular member. The positional data is collected by a computing device and stored in a data storage medium as time history files. The files can then be transformed into usable information to replicate the mandibular movement in real time either virtually or mechanically.
    Type: Grant
    Filed: April 17, 2008
    Date of Patent: February 26, 2013
    Assignee: Gnath Tech Dental Systems, LLC
    Inventors: Yevsey Gutman, John Joseph Keller
  • Publication number: 20130022938
    Abstract: A dental cast stabilizer secures a dental cast to a dental cast articulator, and includes a fastening hole strap and a fastening post strap with a band body disposed therebetweeen. The fastening post strap includes a fastening post disposed thereon, and the fastening hole strap includes a fastening hole disposed thereon that is capable of receiving the fastening post or mounting plate thumb screw on an articulator.
    Type: Application
    Filed: July 22, 2011
    Publication date: January 24, 2013
    Inventors: Michael Robert Meharry, Branden DaVault
  • Publication number: 20120308954
    Abstract: A Geller dental arch model includes openings to receive dies. An improvement to the Geller model uses slotted dies, along with complementary support members within the openings of the arch model, to provide proper x, y, and z orientation for the die within the dental model. By avoiding large planar surfaces within the die, this approach can achieve improved fabrication accuracy and better fit for dies and/or arches fabricated with computerized fabrication systems, particularly on surfaces where critical z-axis alignment of a die occurs.
    Type: Application
    Filed: February 24, 2011
    Publication date: December 6, 2012
    Inventor: Patrick C. Dunne
  • Patent number: 8262388
    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: September 11, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick Colm Dunne, Eric B. Paley, Micah J. Rosenbloom, Michael Patrick Girard
  • Patent number: 8215956
    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: July 10, 2012
    Assignee: 3M Innovative Properties Company
    Inventors: Patrick Colm Dunne, Erie B. Paley, Micah J. Rosenbloom, Michael Patrick Girard
  • Patent number: 8087933
    Abstract: A dental model tray (12) for use in forming a dental model has a rigid bottom wall (16) and a relatively thin side wall (17) extending upwardly from the perimeter of the bottom wall (16) to form an open-topped cavity which is adapted to receive the dental casting material. The bottom wall (16) and the side wall (17) are formed integrally of polymeric material, with the side wall (17) being joined to or attached to the bottom wall (16) by a thin membrane-like connector member (19) that is formed integrally with the perimeter of the bottom wall (16) and a lower side edge of the side wall (17). The connector member (19) is frangible and easily broken so that the side wall (17) can be torn away from the base and discarded after dental casting material has hardened in the cavity formed by the side wall (17). The dental model tray (12) further includes an ell-shaped articulator member (13,14) that extends from a back side of the bottom wall (16).
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: January 3, 2012
    Inventor: James K. Garland
  • Publication number: 20110159455
    Abstract: A method for preparing a surgical guide for positioning of a dental implementation. The method includes positioning a positioning device relative to a model jawbone, translating the positioning device in a BL direction, adjusting a BL angle of the positioning device about a BL pivot axis corresponding to a desired position of a top of the dental implementation, and fixing the BL position, BL angle, and z-height of the positioning device. A mounting assembly mounts to the positioning device and includes a removable rotation block with a guide hole. The mounting assembly is movable in the MD direction while the BL position is fixed. A template fixes the mounting assembly for transferring the positioning information to a patient's mouth. Various aspects of the design process can be performed on a computer. The guide and a method of using the guide to perform an implant procedure are also disclosed.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Inventor: Lambert J. STUMPEL
  • Publication number: 20100216091
    Abstract: A mechanical interfitting connector for repeatably connecting dental models of teeth to articulators without damaging the former. The connector may comprise a socket mountable to a model and a male member mountable to the articulator, wherein the male member enters and engages the socket. The socket may be adhered to the model or alternatively partially embedded therein. A screw may be passed through the socket and male member so as to leave a small marking on the dental model, thereby indexing the socket and model for subsequent mountings, and also to prevent disengagement of the male member from the socket. A supplementary plate may be provided to secure anchoring of the male member to the socket, and to shield plaster which has not fully hardened against damage during hardening.
    Type: Application
    Filed: February 26, 2009
    Publication date: August 26, 2010
    Inventor: Enzo Gambacorta
  • Publication number: 20100105002
    Abstract: A model of at least a part of a dental structure, an articulator, and methods of manufacturing such devices are provided. The model and the articulator can be used to approximate the natural movements of a jaw of a patient to facilitate preparation of a dental restoration. The model can comprise the dental structure, an interface, and at least one void extending from a reference surface of the interface inwardly toward the void. The articulator can comprise upper and lower portions on which models of upper and lower dental structures can be held. The upper and lower portions of the articulator can be configured to generally maintain a vertical alignment while at least one gap formed between respective first and second alignment components thereof allows horizontal movability of the upper and lower portions relative to each other to test the interfit of the models therebetween.
    Type: Application
    Filed: October 18, 2007
    Publication date: April 29, 2010
    Applicant: NOBEL BIOCARE SERVICES AG
    Inventors: Per-Olof Karlsson, Jenny Fäldt, Matts Andersson
  • 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: 20090305186
    Abstract: An accessory for use with a dental articulator, the accessory including a dental model holder, adapted and configured to hold a dental model, and a mounting assembly for removably affixing said dental model holder to a conventional dental model articulator. In some embodiments, the dental model holder includes a model support, a rear stop member perpendicular to the model support, and a model engaging member mounted in the model support and arranged to engage a dental model and urge it towards the stop member.
    Type: Application
    Filed: June 4, 2009
    Publication date: December 10, 2009
    Applicant: Y.T. DENTAL SOLUTIONS TD
    Inventor: ITZHAK TENENBAUM
  • Publication number: 20090186315
    Abstract: A dental articulator has upper and lower cast models of a patient's upper and lower teeth in shells (13a, 13b) linked by an articulation joint (14). The models are formed in the shells (13a, 13b) by locating a bite tray (1, 25) having impressions on opposite sides between the shells (13a, 13b) in fixed positional relationship thereto. The lowermost shell (13a) is filled with casting material in contact with the lowermost impression and this is allowed to set to form one model. The bite tray (1, 25) and shells (13a, 13b) are then turned over to enable the other model to be formed in the other shell (13b). The bite tray (1, 25) has a projecting handle (6, 28) which is clamped with a clamping device (19) which can be detachably mounted on a base (10) both ways up. The shells (13a, 13b) can also be detachably mounted on the base (10) both ways up. Locating devices (11, 12) are provided so that the clamping devices (19) and the shells (13a, 13b) retain their positional interrelationship both ways up.
    Type: Application
    Filed: May 3, 2007
    Publication date: July 23, 2009
    Inventor: Alan Julian Segal
  • Publication number: 20090130625
    Abstract: A holding device that can be braced in a surveying machining together with an individual preparation model produced by dental laboratory techniques. The holding device has a mechanically stable frame with bores disposed at a distance (a) to one another, in which at least two holding pins are locked that can be displaced at least in the axial direction (A).
    Type: Application
    Filed: January 7, 2009
    Publication date: May 21, 2009
    Applicant: EIDGENOSSISCHE TECHNISCHE HOCHSCHULE NICHTMETALLICHE WERKSTOFFE
    Inventors: Frank Filser, Ludwig Gauckler, Peter Kocher, Heinz Luethy, Peter Schaerer, Heiner Hoerhold, Peter Kreuder, Stefan Fecher
  • Publication number: 20090047621
    Abstract: A dental articulator (1) having an upper tray (2) and a lower tray (3) connected together with an articulator arm (7) having an upper arm (27) and a lower arm (28) wherein an upper access cover (4) is removably secured to the upper tray (2) and a lower access cover (5) is removably secured to the lower tray (3). Flanges (24, 25, 31) and/or apertures (20 and 21) are provided to removably secure the access covers (4 and 5) to the trays (2 and 3). In this manner, a user may work on casts (8, 9, 29 and 30) without disassembling the articulator (1) and removing the casts (8, 9, 29 and 30). An alternate embodiment includes triangular trays (2 and 3) having at least one cast holder (35) extending from each tray (2 and 3).
    Type: Application
    Filed: August 15, 2007
    Publication date: February 19, 2009
    Inventor: Tyrone A. Silva
  • Patent number: 7425129
    Abstract: A removable centric stop mechanism 10 for use in a system for making dental restorations. The stop mechanism 10 includes an elongate stop member 11 that can be firmly attached or connected to the dental model and can further be removed from the dental model when so desired. The elongate stop member 11 further incorporates a threaded elongate member 36 that can be threaded to and fro in a bore 34 in the elongate stop member 11 to thereby adjust the effective length of the elongate stop member 11.
    Type: Grant
    Filed: March 31, 2006
    Date of Patent: September 16, 2008
    Inventor: James K. Garland
  • Publication number: 20080206704
    Abstract: A dental articulating system and method configured to duplicate at least a portion of a patient's mouth for use in producing a dental prosthesis securing an impression tray to a flexible and resilient material on a stabilizing plate of an alignment fixture. The position of the impression tray is adjusted on the flexible and resilient material. A tray base is detachably secured to a bottom of the alignment fixture. The tray base with the alignment fixture thereon is placed on a drilling fixture. A drill bit is aligned with a location of an impression corresponding to a prepped tooth of the impression tray. A hole is drilled in the tray base corresponding to the prepped tooth.
    Type: Application
    Filed: February 22, 2008
    Publication date: August 28, 2008
    Inventor: Yunoh Jung
  • 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
  • Publication number: 20080090201
    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: Application
    Filed: October 11, 2006
    Publication date: April 17, 2008
    Inventor: Lawrence F. Andrews
  • Patent number: 7338283
    Abstract: A dental prostheses modeling system includes a molding tray for molding the base of a quadrant or full-arch dental model cast which has a longitudinally disposed partition panel disposed generally between upper and lower surfaces of the tray that forms therewithin an upper well for receiving liquid die stone to mold the base of a dental impression model, and a lower well shaped symmetrically to the upper well for providing clearance for optional manipulating pins installable in the bases of selected die segments modeling individual dental prostheses severed from the hardened die stone base of the model. The partition panel includes peripheral flanges for supporting the base of the dental model, and an openable central portion for enabling a hardened dental model to be ejected from the tray, and for providing access for manipulating pins depending downwardly from die segments.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 4, 2008
    Assignee: Dental Ventures of America Inc.
    Inventors: Jerry P. Honstein, Richard Barnes, Anthony Siragusa, Jason A. Phillips, Kyung Rok Cho
  • Publication number: 20080050694
    Abstract: A dental articulator system including a device and method of forming dental casts. The dental articulator has adjustable ball and socket joints, which are secured in place with a hand tightenable screw. Tightening the screw applies force through a plunger to the ball, impinging the ball against the inner wall of the socket of the ball and socket joint. The device does not require any glue; thus the dental articulator is easily adjusted and reusable.
    Type: Application
    Filed: August 23, 2006
    Publication date: February 28, 2008
    Inventor: JEAN JOSEPH ELNAJJAR
  • Patent number: 7303393
    Abstract: An articulator system employing magnetic and supporting means enabling dental casts to be mounted in or removed from an articulator and replaced as desired.
    Type: Grant
    Filed: February 16, 2006
    Date of Patent: December 4, 2007
    Inventor: Enzo Gambacorta
  • Patent number: 7229284
    Abstract: A dental articulator capable of finely adjusting a three-dimensional articulation posture and exerting a secure fastening force by a lever is provided. The dental articulator includes a lower grip plate, a column, an arm, and an upper grip plate, wherein a first ball and a second ball are disposed between the arm and the upper grip plate, and wherein the dental articulator further comprises: a first clamp block having spherical recesses contacting with the first and second balls; a second clamp block having spherical recesses contacting with the first and second balls; a lever disposed on an outer surface of the second clamp block; an engaging bolt passing through the lever and the second clamp block into the first clamp block; and fastening bolts engaged into the lever to shorten a distance between the first and second clamp blocks.
    Type: Grant
    Filed: July 8, 2005
    Date of Patent: June 12, 2007
    Assignee: Alphadent Co., Ltd.
    Inventor: Jae Soo Uhm
  • 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: 7210932
    Abstract: A dental prostheses modeling system includes a tray having in an upper part thereof a trough for receiving a semi-liquid modeling material or casting material such as plaster of Paris or die stone, the trough having opposed vertical walls in which are formed alternating vertically disposed ribs and grooves for forming complementary shapes in sides of a casting molded in said tray, a base portion of which has in outer walls thereof alternating vertically disposed grooves and ribs, the trough having a frangible base plate which overlies an upwardly concave cavity for receiving liquid die stone after the upper casting has solidified, hardened and been removed, the base plate being broken and removed to uncover an elongated aperture joining the upper trough to the lower cavity enabling the cast to be ejected from the tray, pins fitted into selected portions of the casting base, the casting reinserted into the trough, and the tray inverted to receive liquid die stone which hardens to form a stone base matrix for i
    Type: Grant
    Filed: February 26, 2003
    Date of Patent: May 1, 2007
    Inventors: Jerry P. Honstein, Richard Barnes, Anthony Siragusa
  • Patent number: 7192278
    Abstract: A base assembly for fabrication of false teeth includes a base, and a gum-like raised portion is provided on the said base, a plurality of protruding blocks are provided symmetrically and evenly at the interior and exterior arc edges on the raised portion, and positioning holes are provided between two opposite protruding blocks; a removable holddown plate with a configuration corresponding to the said raised portion is provided over the raised portion, and the holddown plate has a flat surface on the upper surface, has the recesses corresponding to the protruding blocks to be engaged with the protruding blocks and the mounting pins corresponding to the positioning holes to be engaged with the positioning holes on the lower surface. The time to fabricate false teeth is largely reduced and the fabrication accuracy of the false teeth is improved by using the base assembly of the present invention.
    Type: Grant
    Filed: August 11, 2005
    Date of Patent: March 20, 2007
    Assignee: Qingdao Donghe Denture
    Inventor: Guodong Cao
  • 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: 7147465
    Abstract: A dental articulating system to duplicate a patient's teeth for producing a dental prosthesis includes a pair of trays pivotally coupled together. A plurality of registration pins is disposable in a plurality of registration pin holes formed in at least one of the trays. A thin membrane is disposed across a registration pin hole to close off the registration pin hole and resist dental casting material from substantially filling the registration pin hole. The thin membrane is breakable by a registration pin inserted into the registration pin hole. A method for forming a dental model includes pressing a registration pin through a thin membrane extending across a registration pin hole on at least one of the trays of a dental articulator so that the registration pin breaks the thin membrane and extends through the thin membrane.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: December 12, 2006
    Inventors: Yunoh Jung, Daniel Yonil Jung