Having Static Product Shaping Surface (e.g., Mold) Patents (Class 433/34)
  • Patent number: 8905756
    Abstract: A dental appliance comprising at least two plies of thermoformable material, wherein a first ply of a first material, having a first set of characteristics properties, provides a first primary surface of the dental appliance and wherein a second ply of a material different from the first ply, having a second set of characteristic properties, provides an opposing second primary surface of the dental appliance.
    Type: Grant
    Filed: August 23, 2007
    Date of Patent: December 9, 2014
    Assignee: Dentsply International Inc.
    Inventor: Dann Schwartz
  • 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: 20140329196
    Abstract: A bone engaging dental implant surgical stent placement system comprising: a gingival depth impression pin, wherein the gingival depth impression pin is placed in a patient's bony ridge to establish a penetration site. An impression is then created of the patient's bony ridge by placing an impression material around the gingival depth impression pin and the patient's gingival tissue. A stent fabrication guide tube is then placed over the gingival depth impression pin, and a dental stone is poured into the impression to create a working model, with a penetration hole for placing a stent fabrication guide pin into the penetration hole. A baseplate matrix is then molded around the stent fabrication guide pin to create the stent, which positions a pilot drill guide tube to actively engage with the bony ridge and to act as a drill guide when making a pilot hole.
    Type: Application
    Filed: May 1, 2013
    Publication date: November 6, 2014
    Inventor: James Lee Tedesco
  • Patent number: 8783259
    Abstract: An oral appliance includes a one-piece tray system that fits over the posterior teeth of the user and is custom-made or customized using lining material that conforms to the dentition of the wearer. The device may position the lower jaw in a slightly protruded position with respect to the upper jaw.
    Type: Grant
    Filed: May 4, 2009
    Date of Patent: July 22, 2014
    Assignee: Cadwell Therapeutics, Inc.
    Inventor: Jamison Ross Spencer
  • Patent number: 8768497
    Abstract: The present application describes, inter alia, methods, devices, and systems for modeling and fabricating corrective appliances and methods of treating cleft palate using same.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: July 1, 2014
    Assignee: Shriners Hospitals for Children
    Inventors: Philip B. Stoddard, Beth A. Roscoe
  • Patent number: 8696356
    Abstract: A method for dental restoration that includes disposing a flowable and curable tooth restoration composition into an open cavity of a stent that defines contours of a final design model of a patient's teeth and includes an interproximal contact that has been thinned along an interproximal contact zone but not separated, seating the stent on the patient's teeth such that the flowable and curable tooth restoration composition fills a space between at least one tooth to be restored and the stent, initiating curing of the flowable and curable tooth restoration composition in the stent such that the composition bonds to the at least one tooth to be restored and forms at least one restored tooth and removing the stent from the patient's teeth to expose the at least one restored tooth.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: April 15, 2014
    Assignee: Turn Key Dental Academy, Inc.
    Inventors: Karl Edison Hegyi, Arpad Ferenc Csapo
  • Patent number: 8529254
    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: Grant
    Filed: November 22, 2011
    Date of Patent: September 10, 2013
    Inventors: Philip L. Millstein, Edward W. Merrill
  • Patent number: 8505541
    Abstract: A dental device has a U-shaped carrier with at least one channel for embracing an arch of teeth. The carrier has recessed insets in the channel. Discrete inserts carrying a beneficial agent can fit into the insets and release the agent gradually. The device may be used in a therapeutic application and as an athletic mouthguard. Temporary blanks may be initially fitted in the insets while a portion of the mouthguard is softened before an arch of teeth is pressed into the channel to make a custom impression. The inserts possess different physical properties than the carrier and may be positioned and shaped to mechanically buffer teeth of the arch from mechanical shocks as well as release beneficial agents. The inserts may be replaced or refreshed to maintain the beneficial agent. A dental device having a core carrying a beneficial agent inside a liquid-permeable shell functions as an infant's teething device.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: August 13, 2013
    Assignee: Dynamic Mouth Devices LLC
    Inventors: Laura Bardach, James Geduldig, Salvatore Napoli
  • 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: 20130130192
    Abstract: A physiologically compatible impression material comprises 0.005 wt % to 4.99 wt %, preferably 0.01 wt % to 1.0 wt %, and particularly preferably 0.025 wt % to 0.25 wt % of at least one luminescent material.
    Type: Application
    Filed: January 22, 2013
    Publication date: May 23, 2013
    Applicant: Medentic S.A.
    Inventor: Medentic S.A.
  • Patent number: 8402619
    Abstract: The invention described herein provides for a simple, economical system and method for reducing environmental release of dental amalgamous mercury from teeth caused by cremation of corpses. The invention controls and reduces the amount of mercury released using a pre-crematorial and non-disfiguring system and method. The system of the invention can include a dental containment and applicator delivery system to apply a curable thermal protectant composition onto the teeth. The composition coating significantly inhibits the extent of thermal destruction of the tooth per se including its amalgam filling content.
    Type: Grant
    Filed: November 24, 2009
    Date of Patent: March 26, 2013
    Assignee: Minnesota Funeral Directors Association
    Inventors: Benjamin Arcand, Bryan N. Rolfes, Nikhil M. Murdeshwar, Joseph E. Hale, Steven M. Johnson, Luke A. Mitlyng, Joseph Mullenbach, Kristopher I. Kapphahn
  • Patent number: 8360775
    Abstract: For proper fitness of a core portion of an abutment to a patient, a wax model base for an abutment of a dental implant includes an engagement portion 1 engaging with an implant fixture analog embedded in a gypsum model without rotation, a truncated conical portion 2, a building portion 4 provided directly on an inner peripheral edge of a ring-like first stepped portion 3, which is provided on an oral cavity inner side of the truncated conical portion 2, or through a cylindrical portion 4a having a low height to have a conical shape expanding toward the oral cavity inner side and have a cutoff portion 5 on an outer peripheral surface, a cylindrical portion 7 provided on an inner peripheral edge of a ring-like second stepped portion 6 provided on the building portion 4, and a screw hole 8 along a center axis of the base.
    Type: Grant
    Filed: March 3, 2010
    Date of Patent: January 29, 2013
    Assignee: GC Corporation
    Inventors: Takamitsu Takagi, Yusuke Noguchi, Fumiya Sato, Tsuyoshi Noguchi, Ryosuke Ikeya, Yoshihiro Sakaguchi
  • Patent number: 8303302
    Abstract: Embodiments presented herein provide apparatus and methods for forming and coupling an attachment device onto one or more teeth. A system comprises a template including a shell having a cavity defining a shape that is operable to receive one or more teeth. The template comprises an aperture at one or more predetermined locations. The aperture defines an aperture perimeter. The system further comprises one or more attachment molds. Each attachment mold comprises a mold bore therethrough. The attachment mold further includes a mold perimeter surface that defines a predetermined shape, wherein each of the aperture perimeters being operable to receive and cooperate with the mold perimeter surface of one of the attachment molds. Each mold bore being operable for providing a mold for forming an attachment device coupled to a tooth of a desired shape and orientation from curable material that may be disposed within the mold bore.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: November 6, 2012
    Inventor: Russell C. Teasdale
  • Patent number: 8297286
    Abstract: The present embodiment relates to the use of a musculoskeletal repositioning device in physical rehabilitation and athletic training by causing increased muscular strength and power and decreased muscular tension especially during the physical rehabilitation and athletic training. The device guides the condyles and articulating discs of the temporomandibular joint from a neutral or passive position into an active power position.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: October 30, 2012
    Assignee: RampUP, LLC
    Inventor: Gerald N. Smernoff
  • Publication number: 20120196244
    Abstract: A dental article includes yttria stabilized tetragonal zirconia polycrystalline ceramic, and no more than about 0.15 wt. % of one or more coloring agents of one or more of: Pr, Tb, Cr, Nd, Co, oxides thereof, and combinations thereof, whereby the dental article is provided with a color corresponding to a natural tooth shade; and wherein the dental article has a flexural strength of at least about 800 MPa. Corresponding methods are also described.
    Type: Application
    Filed: April 3, 2012
    Publication date: August 2, 2012
    Applicant: IVOCLAR VIVADENT AG
    Inventors: Ajmal Khan, Carlino Panzera, Dmitri G. Brodkin
  • Publication number: 20120028210
    Abstract: A method for dental restoration that includes disposing a flowable and curable tooth restoration composition into an open cavity of a stent that defines contours of a final design model of a patient's teeth and includes an interproximal contact that has been thinned along an interproximal contact zone but not separated, seating the stent on the patient's teeth such that the flowable and curable tooth restoration composition fills a space between at least one tooth to be restored and the stent, initiating curing of the flowable and curable tooth restoration composition in the stent such that the composition bonds to the at least one tooth to be restored and forms at least one restored tooth and removing the stent from the patient's teeth to expose the at least one restored tooth.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 2, 2012
    Applicant: TURN KEY DENTAL ACADEMY, INC.
    Inventors: Karl Edison Hegyi, Arpad Ferenc Csapo
  • Patent number: 8061358
    Abstract: The present embodiment relates to the use of a musculoskeletal repositioning device in the birthing process by causing increased muscular strength and decreased muscular tension especially during the “push” phase of child birth. The device guides the condyles and articulating discs of the temporomandibular joint from a neutral or passive position into an active power position.
    Type: Grant
    Filed: February 8, 2011
    Date of Patent: November 22, 2011
    Assignee: RampUP, LLC
    Inventor: Gerald N. Smernoff
  • Patent number: 8033828
    Abstract: A device for retracting gingival tissue away from a tooth or plurality of teeth prepared to receive a dental prosthesis comprising a retraction/impression material associated with a custom impression coping to be packed into a sulcus associated with the prepared tooth, and coincidentally obtaining an impression of said tooth or teeth. The device is preferably compressible, deformably rigid, extensile and non-elastic and will not stick to the gingiva or tooth structure thereby allowing for atraumatic removal. A method of use is also disclosed.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: October 11, 2011
    Inventor: Allan Coopersmith
  • Patent number: 7980852
    Abstract: The invention relates to a method for producing a dental mold on the basis of a thermoplastic film (4), and to an impression tray (1) for producing such a dental mold (2). The impression tray (1) is charged with a kneadable, malleable material (3) on which the thermoplastic film (4) that can be formed to a dental mold (2) is located. The softening temperature of the thermoplastic film (4) ranges between approximately 40 DEG C and approximately 80 DEG C.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: July 19, 2011
    Assignee: Kettenback GmbH & Co. KG
    Inventors: Matthias Suchan, Alexander Bublewitz
  • Patent number: 7918228
    Abstract: Musculoskeletal repositioning devices are described. The devices are worn in the mouth and cause the lower jaw of the wearer to move into an active optimal position that relieves stress on the temporomandibular joint, causing increased muscular strength and decreased muscular tension. The devices have ramps on their upper surfaces which contact the upper posterior teeth and lingual anatomy and cause the jaw to reposition from a passive bite position to an active optimal bite position. A casting device for forming a musculoskeletal repositioning device and a method for using the casting device are also described.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: April 5, 2011
    Inventor: Gerald N. Smernoff
  • Publication number: 20100330524
    Abstract: Methods of manufacturing hardenable dental articles, packaged hardenable dental articles, and methods of packaging hardenable dental articles are disclosed. In various embodiments, the manufacturing may involve molding a hardenable dental material in a mold cavity that may be lined with a mold liner. The mold body may also form the package of the hardenable dental article formed within the mold cavity. In other embodiments, the hardenable dental articles may be provided in mold cavities located in sacrificial mold bodies that may be torn, stretched, softened, dissolved, etc. to release the hardenable dental articles in the mold cavities.
    Type: Application
    Filed: September 8, 2010
    Publication date: December 30, 2010
    Inventors: Naimul Karim, Darin J. Meyertholen, Robert M. Biegler, Kevin M. Cummings, Lance C. Gore, James R. Kvitrud, Robert W. Peterson, Daniel T. Scott
  • Publication number: 20100322988
    Abstract: The present invention provides tooth-whitening compositions comprising a bleaching agent and a baste amino acid, together with devices for application thereof, and methods of use therefor.
    Type: Application
    Filed: February 6, 2009
    Publication date: December 23, 2010
    Applicant: Colgate-Palmolive Company
    Inventors: Michael Prencipe, Richard Scott Robinson, Rajnish Kohli, Richard J. Sullivan
  • Publication number: 20100143858
    Abstract: The invention relates to a method for simulating an orthognathic operation, wherein, to simulate the displacement of the upper dental arch 105 of the patient caused by the surgical intervention to be applied to the maxilla 106 during said orthognathic surgery, the angular and translational position of an upper mounting plate 526 of a 3-D orthognathic surgery simulator 510 carrying a model 317 of said upper dental arch 105 is readjusted by rotating said upper mounting plate 526 around at least two, preferably three of three orthogonal axes X1Y and Z with respect to a rotation point 522 fixed to an arm 521 of said 3-D orthognathic surgery simulator 510, and translating said arm 521 substantially parallel to at least one of the same three orthogonal axes X, Y, Z.
    Type: Application
    Filed: February 11, 2008
    Publication date: June 10, 2010
    Inventors: Walter Okkerse, Bert Okkerse, Egied Brys, Adriaan Brebels, Paul Verbist
  • Publication number: 20100075279
    Abstract: A dental impression tray has a base and a relator. The base has a biting portion and a handle. The biting portion is curved. The handle is formed on the biting portion and has an arc hole that is defined through the handle to receive impression material. The relator has a vertical bar and a horizontal bar. The relator is mounted in the arc hole and is fastened in the arc hole by impression material. The horizontal bar connects perpendicularly to the vertical bar. Therefore, the impression of the teeth to be crowned or veneered as well as the relation between the impression and the patient's face are obtained simultaneously.
    Type: Application
    Filed: September 25, 2008
    Publication date: March 25, 2010
    Applicant: Phillip Phung-I HO
    Inventors: Phillip Phung-I HO, Chung-Chieh Lee
  • Publication number: 20090298006
    Abstract: A dental appliance comprising at least two plies of thermoformable material, wherein a first ply of a first material, having a first set of characteristics properties, provides a first primary surface of the dental appliance and wherein a second ply of a material different from the first ply, having a second set of characteristic properties, provides an opposing second primary surface of the dental appliance.
    Type: Application
    Filed: August 23, 2007
    Publication date: December 3, 2009
    Inventor: Dann Schwartz
  • Publication number: 20090274999
    Abstract: A device for retracting gingival tissue away from a tooth or plurality of teeth prepared to receive a dental prosthesis comprising a retraction/impression material associated with a custom impression coping to be packed into a sulcus associated with the prepared tooth, and coincidentally obtaining an impression of said tooth or teeth. The device is preferably compressible, deformably rigid, extensile and non-elastic and will not stick to the gingiva or tooth structure thereby allowing for atraumatic removal. A method of use is also disclosed.
    Type: Application
    Filed: October 30, 2006
    Publication date: November 5, 2009
    Inventor: Allan Coopersmith
  • Publication number: 20090208895
    Abstract: A plaster dental cast gum plate molding mold for molding a plaster dental cast gum plate having pins is disclosed. The body of the mold is made of an elastic material, having a cavity surrounded by a smoothly arched inner wall, a smoothly arched outer wall and a bottom wall, a plurality of insertion holes cut through the bottom wall for the insertion of a respective pin, and a plurality of alignment pegs respectively perpendicularly extending from the smoothly arched outer wall and suspending in the cavity so that the molded plaster cast gum plate has dents corresponding to the alignment pegs for quick recognition of the locations of the pins after positioning of the plaster cast gum plate on a base plate and bonding of a dental cast to the flat top surface of the plaster cast gum plate for enabling the dentist to cut one individual tooth model accurately.
    Type: Application
    Filed: February 17, 2008
    Publication date: August 20, 2009
    Inventor: Chao-Hung LIN
  • Patent number: 7549862
    Abstract: The invention relates to a process of retraction of sulcus, comprising the steps of: applying a silicone material onto and/or at the vicinity of the boundary of a tooth and adjacent sulcus, which silicone material expands during or after its curing reaction; applying a cap onto said tooth, thereby forming a chamber over said silicone material, wherein said chamber comprises as its walls the tooth, the cap and an outer section of said sulcus; whereby said chamber allows for the silicone material to expand into the crevice between sulcus and tooth. Said cap is at least partially filled with a plastically deformable material when applied onto said tooth in step; and/or said cap is deformable, especially under biting pressure.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: June 23, 2009
    Assignee: Coltene AG
    Inventors: Ralf Kollefrath, Stephan Lampl, Dierk Lubbers
  • Publication number: 20090155736
    Abstract: In order to produce dental molded parts for a dental prosthesis, a shaping model of the desired dental molded part is made, for example, from wax. The model is embedded in a heat-resistant molding compound. The molding compound is subsequently hardened, and the wax model is melted in order to form a mold cavity that corresponds to the negative of the desired dental molded part. The thermoplastic heated to the processing temperature is introduced with pressure into the formed mold cavity in the molding compound, and the thermoplastic, which forms the desired dental molded part, is removed from the mold once the molding compound is solidified. The molding compound has a temperature of at least 150° C. at the point in time at which the thermoplastic is introduced.
    Type: Application
    Filed: April 12, 2006
    Publication date: June 18, 2009
    Inventors: Franz Vekoerrer, Ernst Fleischmann
  • Patent number: 7506651
    Abstract: A customizable and reusable mouthpiece for diving use having a passageway-forming front member extending from a proximal in-mouth end to a distal outside end and a U-shaped formable back member is described. The back member provides a hollow cavity portion located in the bitewing section that may be partially filled with a gel-like or other suitable substance configured to provide custom moldability at substantially all points of contact between the mouthpiece and the teeth such that the mouthpiece is securely gripped by the teeth. The mouthpiece requires pressure relief channels so that air or fluids may enter into and be forced out of the hollow cavity providing a bellows-like action that provides a means for the bitewing and materials of composition to return to essentially its original shape. Reusability of the mouthpiece, more specifically the bitewings is directly related to the choice and combination of materials, dimensioning and processing.
    Type: Grant
    Filed: April 12, 2006
    Date of Patent: March 24, 2009
    Inventor: James Anonsen
  • Publication number: 20090061393
    Abstract: The invention concerns a method of retraction of sulcus, in which, in a first step, a flowable retraction material (1) is applied onto the sulcus (5) of at least one tooth (4). In a second step, a dental dam (2) is applied onto the tooth (4) and brought into contact with or in the vicinity of the retraction material (1). According to the invention, the retraction material (1) and the material of the dental dam (2) are chosen such that they can form a chemical bond with each other. Moreover, the invention concerns a dental kit (9) for performing the method, which dental kit (9) contains at least one flowable retraction material (1) and at least one dental dam (2), wherein the retraction material (1) and the dental dam (2) can form a chemical bond. Additionally, the invention concerns the use of a dental kit (9) in the method. Finally, the invention concerns a dental retraction device (10) containing a retraction material (1) and a dental (2), which have formed a chemical bond with each other.
    Type: Application
    Filed: May 12, 2008
    Publication date: March 5, 2009
    Applicant: COLTENE WHALEDENT AG
    Inventors: Ralf Kollefrath, Brigitte Pittner, Werner Mannschedel
  • Publication number: 20090053669
    Abstract: A casting chamber for casting a physical tooth model representing a patient's tooth includes a chamber body and a lid. The chamber body includes a cavity adapted to hold a negative impression of the patient's tooth and to receive a cast material, wherein the negative impression and the chamber body are registered by a registration unit. The chamber lid is configured to seal the cast material in the casting chamber to permit the casting material to solidify in the casting chamber to form a physical tooth model representing the patient's tooth.
    Type: Application
    Filed: September 16, 2008
    Publication date: February 26, 2009
    Applicant: ALIGN TECHNOLOGY, INC.
    Inventors: FRANK ZHENHUAN LIU, HUAFENG WEN
  • Publication number: 20090047620
    Abstract: The invention relates to plastics which are self-disinfecting. The invention relates in particular to polyether or silicone based dental plastics and impression materials in which a biocidal material is incorporated. The dental impression material ace. to the invention comprises at least a polymerizable base paste BP and a non-aqueous catalyst paste CP, wherein the base paste BP comprises about 0.001 to about 10% by weight of a water-stable anti-microbial agent. Preferred anti-microbial agents are selected from the group consisting of Hexitidin, Cetypyridininumcloride (CPC), Chlorhexidine and its derivates (CHX) and Triclosan.
    Type: Application
    Filed: November 9, 2006
    Publication date: February 19, 2009
    Inventors: Thomas Klettke, Oliver Kappler, Ingo R. Haeberlein
  • Publication number: 20080299510
    Abstract: A method for applying a temporary dental veneer on a patient's teeth that includes the steps of positioning a mold on the patient's teeth, the mold containing a material that may be hardened, and hardening the material on the patient's teeth, the hardened material being temporarily affixed on the teeth. The temporarily affixed hardened material becomes unfixed from the patient's teeth from two hours to two weeks after the material is hardened. An apparatus according to the invention includes a mold adapted to receive a material that may be hardened, and a material that may be hardened, wherein the hardened material is adapted to be temporarily affixed to a patient's teeth.
    Type: Application
    Filed: June 4, 2007
    Publication date: December 4, 2008
    Inventors: Jonathan Penchas, Rick Kline
  • Patent number: 7452206
    Abstract: A dental cast model apparatus for the production and manipulation of dental model casts. The apparatus includes a model base having a mould adapted to produce a dental model. The model base is capable of supporting the dental model when formed and the model base is provided with one or more portions through or via which a force may be applied to said dental model when formed to remove said dental model from the model base.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: November 18, 2008
    Assignee: Neotek TDP Limited
    Inventor: Andrew Taylor
  • Patent number: 7435084
    Abstract: A casting chamber for casting a physical tooth model representing a patient's tooth includes a chamber body and a lid. The chamber body includes a cavity adapted to hold a negative impression of the patient's tooth and to receive a cast material, wherein the negative impression and the chamber body are registered by a registration unit. The chamber lid is configured to seal the cast material in the casting chamber to permit the casting material to solidify in the casting chamber to form a physical tooth model representing the patient's tooth.
    Type: Grant
    Filed: December 14, 2004
    Date of Patent: October 14, 2008
    Assignee: Align Technology, Inc.
    Inventors: Frank Zhenhuan Liu, Huafeng Wen
  • Publication number: 20080166679
    Abstract: The dental model pouring jig of the present invention includes a base member that supports a model base support member and a mold support member. The model base support member is secured to the base member and is capable of mounting a dental model base. The mold support member is adjustably secured to the base member and capable of mounting a mold of a person's teeth. The mold support member is adjustable relative to the model base support member to properly position the mold adjacent the dental model base.
    Type: Application
    Filed: March 25, 2008
    Publication date: July 10, 2008
    Inventor: Ronald E. Huffman
  • Patent number: 7354263
    Abstract: A multi dental flask system. The system includes a boot, at least two dental flasks, a sleeve, and a wrench. The boot is affixed to a surface. The at least two dental flasks are stacked one on top of the other. A lowermost dental flask of the at least two dental flasks is non-rotatably received in the boot. The sleeve is replaceably affixed to the lowermost dental flask of the at least two dental flasks and houses the other at least one dental flask of the at least two dental flasks so as to allow the at least two dental flasks to be processed simultaneously. The wrench receives the sleeve and replaceably affixes the sleeve to the lowermost dental flask.
    Type: Grant
    Filed: August 17, 2005
    Date of Patent: April 8, 2008
    Inventor: Avis J. Smith
  • 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
  • Patent number: 7325433
    Abstract: A press oven, especially for the pressing of dental material, includes a press stamp via which pressure can be exerted on a blank in a matrix mass of a muffle. An intermediate body is positionable between the press stamp and the blank and the heat conducting capability of the intermediate body (28) is less than that of the blank (26), the press stamp (22) or the matrix mass of the muffle (12).
    Type: Grant
    Filed: February 28, 2005
    Date of Patent: February 5, 2008
    Assignee: Ivoclar Vivadent AG
    Inventor: Hans-Peter Foser
  • Publication number: 20080026341
    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 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).
    Type: Application
    Filed: January 26, 2005
    Publication date: January 31, 2008
    Inventor: James K. Garland
  • Publication number: 20070292818
    Abstract: A casting tray and a base provide a dental model mounting device. The casting tray supports the dental model with a plurality of protrusions that extend into the dental model casting material. The casting tray snaps in and out of the base. The base has a socket for mounting on a dental articulator. The casting tray can be removed from the base, segmented, and reintegrated and realigned by snapping the segmented pieces back in the base.
    Type: Application
    Filed: June 20, 2006
    Publication date: December 20, 2007
    Inventors: Michael Sullivan, Ashwin Mehta
  • 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: 7255561
    Abstract: Systems and methods are disclosed for forming a pontic in a polymeric shell dental appliance, including providing a polymeric shell dental appliance of the type which is removably placeable over a patient's dentition, said shell having a concave trough which conforms to the teeth when the appliance is placed over the dentition and a location in the trough corresponding to a missing tooth; and depositing a flexible, durably affixed material in the location to form the pontic.
    Type: Grant
    Filed: April 20, 2006
    Date of Patent: August 14, 2007
    Assignee: Align Technology, Inc.
    Inventors: Robert E. Tricca, Eric Kuo, Peter G. Knopp, Choi Woncheol, Craig R. Burns
  • Patent number: 7192277
    Abstract: Tray (10) for forming dental model comprises base wall (12) forming floor upon which dental casting material is poured. Spaced apart projections (14) extending upwardly from base wall (12). An upstanding axis of each projection (14) is substantially perpendicular to the upper face of the base wall (12). Projections (14) are arranged in two rows, with the projections (14) in one row being offset from corresponding projections (14) in the other row. Sidewalls of each projection (14) taper inwardly at an angle of between about 82 to 88 degrees with the upper face of the base wall (12). Each projection (14) has a thickness at its base of about 3 to 7 millimeters. The projections (14) are spaced from each other at their bases by a distance of from 0 to 5 millimeters.
    Type: Grant
    Filed: May 9, 2005
    Date of Patent: March 20, 2007
    Inventor: James K. Garland
  • Patent number: 7175437
    Abstract: A positioning aid, formed T-shaped, is adhesively attached to portions of a broken denture plate prior to placement of the dental plate portions into a dental impression tray whereby the positioning aids extend into and are embedded into the impression material in the dental tray and act as positioners and stabilizers to properly align and hold the dental plate portions while the dental impression material hardens.
    Type: Grant
    Filed: February 10, 2004
    Date of Patent: February 13, 2007
    Inventor: Emad El Haje
  • Patent number: 7083413
    Abstract: An improved method for producing dental models through use of a dough-like modeling filler material as a base, embedding a dental preliminary impression in such based, using a spring-form mold ring embedding in the base to surround the preliminary impression, and pouring dental casting material within the bounds of the mold ring to form a positive dental model.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: August 1, 2006
    Inventors: Kammy Parker, Doris Craig, Jerry Gaubert, James Bereck
  • 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: 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: 6913462
    Abstract: A dental prostheses modeling system includes a re-usable tray having in an upper part thereof a trough for receiving a semi-liquid 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 molding complementary shaped grooves and ribs in opposed sides of the base of a dental model casting molded in said tray. The trough has a base frame which overlies an upwardly concave lower cavity for receiving liquid die stone after the casting base has solidified, hardened and been removed. The base frame has therethrough an elongated aperture joining the upper trough to the lower cavity. A resilient insert is removably lodged in the base frame aperture to form therewith a liquid-tight seal, whereupon liquid die stone is poured into the upper trough to form the base of a dental model casting. After the casting has hardened, the insert is removed, and pins are fitted into selected portions of the cast base.
    Type: Grant
    Filed: June 12, 2003
    Date of Patent: July 5, 2005
    Assignee: Dental Ventures of America, Inc.
    Inventors: Jerry P. Honstein, Richard Barnes, Anthony Siragusa