Patents Assigned to Ultradent Products, Inc.
  • Patent number: 8454558
    Abstract: A hollow inner plunger for use within a syringe-in-syringe mixing system for mixing a two-part dental composition. The hollow inner plunger includes a body having a continuous cylindrical wall defining an internal chamber for containing a first component. The body includes a proximal end and a distal end. A sealing plug and rupturable membrane are disposed at the distal end of the body, and the sealing plug and rupturable membrane are integrally formed together as a single piece (e.g., formed of a single piece of elastomeric material). An associated syringe-in-syringe mixing system includes a first plunger, the hollow inner plunger, and a syringe barrel configured to contain a second component. When assembled, the first plunger is slidably disposed within the hollow inner plunger, and the hollow inner plunger is slidably disposed within the syringe barrel. The two components are initially separated by the rupturable membrane.
    Type: Grant
    Filed: April 26, 2007
    Date of Patent: June 4, 2013
    Assignee: Ultradent Products, Inc.
    Inventors: Neil Jessop, Bruce S. McLean, Jared Sheetz
  • Publication number: 20130130197
    Abstract: A hollow syringe barrel for use in syringe mixing systems for mixing a two-component composition. A hollow body of the syringe barrel includes a proximal end, a distal end, and continuous cylindrical wall defining an internal chamber for containing a first component. A rupturable membrane disposed at the distal end caps and seals off a single dispensing orifice. A second syringe barrel can be coupled to the distal end of the hollow syringe barrel to form a syringe-to-syringe mixing system. First and second plungers disposed within the hollow syringe barrel and second syringe barrel, respectively, are used to mix and cycle back and forth first and second components initially contained within the hollow syringe barrel and second syringe barrel. The two components are initially separated by the rupturable membrane, which is irreversibly ruptured by applying sufficient pressure to the first plunger within the hollow syringe barrel prior to mixing.
    Type: Application
    Filed: January 15, 2013
    Publication date: May 23, 2013
    Applicant: Ultradent Products, Inc.
    Inventor: Ultradent Products, Inc.
  • Publication number: 20130130190
    Abstract: Orthodontic force modules for use in correcting class II and/or class III malocclusions. In one embodiment, the force module (100) includes an elongate body (102) extending between a distal end (104) and a proximal end (106), a movable member (108) extending between a proximal end (112) and a distal end (110) that is slidably disposed relative to the elongate body (102), a movable piston (108) disposed at or near the distal end (110) of the movable member, a stop (118) disposed at or near a proximal end (106) of the elongate body (102) and proximal to the movable piston (108), and an elastomeric member (120). A proximal end (112) of the elastomeric member (120) is cooperatively coupled to the stop (118), while a distal end (110) is cooperatively coupled to the movable piston (108) so that when the movable member is moved distally relative to the body, the elastomeric member (120) stretches so as to apply a counter-force to the movable member (108).
    Type: Application
    Filed: July 27, 2011
    Publication date: May 23, 2013
    Applicant: ULTRADENT PRODUCTS, INC.
    Inventor: Paul E. Lewis
  • Publication number: 20130130194
    Abstract: A non-custom, dental tray device includes a moisture-resistant barrier layer having a labial-buccal wall, a lingual wall, and a bottom wall. The dental tray device includes at least one of the following structural features to enhance the fit of the device; (1) the bottom wall includes an abrupt reduction of width at a location corresponding to where the first bicuspid meets the canine; (2) a bottom wall in the posterior region having a width that is equal to or less than the width of the bottom wall in the anterior region, with no lingual wall in the posterior region; or (3) a transition portion between the bottom wall and either the labial-buccal wall or the lingual wall has a larger radius of curvature as compared to a radius of curvature at a transition portion between the bottom wall the other of the labial-buccal wall and the lingual wall.
    Type: Application
    Filed: January 15, 2013
    Publication date: May 23, 2013
    Applicant: Ultradent Products, Inc.
    Inventor: Ultradent Products, Inc.
  • Patent number: 8444413
    Abstract: A non-custom, dental tray device includes a moisture-resistant barrier layer having a labial-buccal wall, a lingual wall, and a bottom wall. The dental tray device includes at least one of the following structural features to enhance the fit of the device; (1) the bottom wall includes an abrupt reduction of width at a location corresponding to where the first bicuspid meets the canine; (2) a bottom wall in the posterior region having a width that is equal to or less than the width of the bottom wall in the anterior region, with no lingual wall in the posterior region; or (3) a transition portion between the bottom wall and either the labial-buccal wall or the lingual wall has a larger radius of curvature as compared to a radius of curvature at a transition portion between the bottom wall the other of the labial-buccal wall and the lingual wall.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: May 21, 2013
    Assignee: Ultradent Products, Inc.
    Inventors: Dan E. Fischer, Peter M. Allred, Bruce S. McLean
  • Patent number: 8414868
    Abstract: In situ foamable dental bleaching compositions include a dental bleaching agent, thickening agent, polyol, and in situ foaming agent. The foamable dental bleaching compositions are initially dispensed as a dental bleaching gel. Upon placement of the dental bleaching gel onto a person's tooth surfaces, the in situ foaming agent causes the bleaching gel to foam. Dental bleaching systems include an in situ foamable dental bleaching composition within a pressurized container (e.g., bag-on valve container) having a nozzle that, when actuated, expels the in situ dental bleaching composition as a gel. Dental bleaching methods include dispensing the in situ foamable dental bleaching composition as a gel, contacting a person's tooth surfaces with the dental bleaching gel, and allowing the gel to expand and foam in order to dynamically distribute and replenish the dental bleaching agent to the tooth surfaces and into the interproximal spaces between teeth.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: April 9, 2013
    Assignee: Ultradent Products, Inc.
    Inventor: Scot N. Andersen
  • Publication number: 20130078195
    Abstract: A dental bleaching composition comprises a dental bleaching agent and a polyvinylpyrrolidone thickening agent. The bleaching composition may include water, flavoring agents, a basic substance and desensitizing agents, as desired. Polyvinylpyrrolidone avoids acid etching and chelation of teeth that were problematic in bleaches using carbomer as a thickener. A delivery system for delivering the bleaching composition comprises the aforementioned dental bleaching composition in combination with a moisture-resistant barrier layer such as a dental tray or a flexible strip of material.
    Type: Application
    Filed: November 16, 2012
    Publication date: March 28, 2013
    Applicant: Ultradent Products, Inc.
    Inventor: Ultradent Products, Inc.
  • Patent number: 8398397
    Abstract: Injection needle devices for administering a local anesthetic into tough, dense ligamentary tissue surrounding a tooth. The injection needle is a two-part needle that includes a proximal needle portion formed of metal, ceramic or rigid plastic and a distal needle portion formed of ceramic or hardened metal. The distal penetrating needle portion has an exposed length not more than about 8 mm, and an maximum outside diameter of about 25 gauge. At the transition between the proximal needle portion and the distal needle portion there can be an abrupt stop surface for limiting penetration through tissue. Alternatively, the proximal needle portion can have a tapered surface that permits penetration of the tapered surface into tissue. The injection needle device is designed to minimize pain and prevent buckling of the distal needle portion.
    Type: Grant
    Filed: March 4, 2009
    Date of Patent: March 19, 2013
    Assignee: Ultradent Products, Inc.
    Inventor: Dan E. Fischer
  • Patent number: 8394052
    Abstract: A plunger-barrel apparatus is adapted for use within a syringe-in-syringe mixing system for mixing a two-part composition (e.g., a dental composition). A hollow plunger-barrel body has a continuous cylindrical wall defining an internal chamber for containing a first component. The body includes a plunger receiving end and a dispensing end. An integral sealing plug and rupturable membrane is disposed at the dispensing end of the body and include a sealing plug portion and a rupturable membrane portion that are integrally formed together as a single piece (e.g., formed of a single piece of elastomeric material). An associated syringe-in-syringe mixing system includes a first plunger, the hollow plunger-barrel body as described above adapted to contain a first component, and a syringe barrel configured to contain a second component. When assembled, the first plunger is slidably disposed within the hollow plunger-barrel body, and the plunger-barrel body is slidably disposed within the syringe barrel.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 12, 2013
    Assignee: Ultradent Products, Inc.
    Inventors: Neil Jessop, Bruce S. McLean, Jared Sheetz
  • Patent number: 8383163
    Abstract: Fluoride varnish compositions for temporary application and adhesion to a person's teeth. The composition includes a carrier comprising a resin and an adhesion promoting agent comprising an alkyl phosphoric acid. A fluoride ion source (e.g., a fluoride salt such as sodium fluoride) is dispersed within the carrier so as to provide biologically available fluoride ions to the tooth tissue being treated. The composition adheres only temporarily to tooth tissue (e.g., for a period of at least about 4 minutes, but not more than about 1 year), after which the composition spontaneously wears away as a natural result of the action of the tongue, saliva and/or other factors.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: February 26, 2013
    Assignee: Ultradent Products, Inc.
    Inventors: Jeff A. Wagner, Andy T. Kawamoto
  • Patent number: 8353701
    Abstract: A saliva control device for controlling saliva flow from a salivary duct without damaging the salivary duct and surrounding soft oral tissue includes an elastic body, a constriction hole formed through the elastic body, and an interior wall defining the constriction hole. The interior wall is substantially smooth and the elastic body sufficiently stretchable that the constriction hole expands during placement around a salivary duct and the wall constricts around the salivary duct to prevent flow of saliva without substantially cutting off blood flow to and damaging the salivary duct and soft oral tissue surrounding the salivary duct.
    Type: Grant
    Filed: August 17, 2010
    Date of Patent: January 15, 2013
    Assignee: Ultradent Products, Inc.
    Inventor: Bernard W. S. Odenkirchen
  • Patent number: 8349298
    Abstract: A dental bleaching composition comprises a dental bleaching agent and a polyvinylpyrrolidone thickening agent. The bleaching composition may include water, flavoring agents, a basic substance and desensitizing agents, as desired. Polyvinylpyrrolidone avoids acid etching and chelation of teeth that were problematic in bleaches using carbomer as a thickener. A delivery system for delivering the bleaching composition comprises the aforementioned dental bleaching composition in combination with a moisture-resistant barrier layer such as a dental tray or a flexible strip of material.
    Type: Grant
    Filed: October 25, 2007
    Date of Patent: January 8, 2013
    Assignee: Ultradent Products, Inc.
    Inventor: Tianming Chen
  • Patent number: 8348863
    Abstract: The discovery of a new coefficient named “Radicular Spectral Attenuation Coefficient-RSAC”, applicable in electronic foramen locators is described. The novelty is the use of the spectral attenuation of a multifrequency electrical current signal, applied through the endodontic file into the tooth canal (TC), to determine the root length and the foramen position. FIG. (2): (2.1), (2.4), (2.8) and (2.2), (2.5), (2.9) are the amplitude and frequency axes, respectively; (2.3) is the electrical current frequency spectrum applied into the TC; (2.6) shows the spectrum exponential decay (2.7) of the signal measured over the TC. In (2.10) the axes (2.4) and (2.5) were logaritmized to linearize the exponential decay. The RSAC is the average inclination of the line (2.11), which is proportional to the distance between the tip of the endodontic file and the apical foramen. The RSAC changes as the tip of the file gets near the foramen.
    Type: Grant
    Filed: February 9, 2006
    Date of Patent: January 8, 2013
    Assignee: Ultradent Products, Inc.
    Inventors: Humberto Remigio Gamba, Ronaldo Piazzalunga, Joaquim Miguel Maia, Carlos Alberto Spironelli Ramos, Alexandre Salcedo Ratzke, Marcos Vinicius Haas Rambo
  • Publication number: 20120322019
    Abstract: Customized low force orthodontic arch wires include a core wire (102) formed of a shape memory material and a plurality of bracket engagement blocks (104) disposed in spaced apart relationship along the length of the core wire (102). The particular position of each engagement block (104) along the length of the core wire (102), as well as the length and curvature of the core wire (102), are customized for the particular patient on which the arch wire is to be installed. A physical or electronic custom model of the patient's dental arch is obtained. The customized arch wire is then fabricated according to the specifications determined by reference to the custom model of the patient's teeth.
    Type: Application
    Filed: June 21, 2010
    Publication date: December 20, 2012
    Applicant: ULTRADENT PRODUCTS, INC.
    Inventor: Paul E. Lewis
  • Patent number: 8323339
    Abstract: A method for manufacturing a delivery system that includes a bone growth promoting material encapsulated within a water-absorbing, water-gelatinizable covering used to promote bone growth in order to repair a bone defect and/or strengthen a weakened bone region. The delivery system may be shaped and sized in order to fit within a bleeding wound (e.g., one that is formed in the gingiva when a tooth is extracted). The covering may be formed of a gelatinizable-gauze (e.g., oxidized cellulose) that forms a gel-like material when moistened with water. The delivery system may be stored in a moisture resistant package prior to use.
    Type: Grant
    Filed: September 2, 2008
    Date of Patent: December 4, 2012
    Assignee: Ultradent Products, Inc.
    Inventor: Dan E. Fischer
  • Patent number: 8277215
    Abstract: A non-custom, tray-shaped dental treatment device includes a moisture-resistant barrier layer having a front side wall and a bottom wall, and a dental treatment composition. In addition, the tray-shaped dental treatment device includes at least one of the following anatomical features to enhance the fit of the device: (1) the bottom wall includes a plurality of cuts positioned to help the bottom wall better conform to abrupt changes in the diameters of a person's teeth where the bicuspids and canines meet, and/or (2) the bottom wall includes at least one V-shaped or U-shaped indentation configured to be inserted into the depression typically found along the top surfaces of a person's molars, and/or (3) the front side wall and bottom wall include radii of curvature that account for typical flaring of a patient's incisors.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: October 2, 2012
    Assignee: Ultradent Products, Inc.
    Inventors: Bruce S. McLean, Dan E. Fischer, Peter M. Allred
  • Patent number: 8277828
    Abstract: A delivery system that includes a bone growth promoting material encapsulated within a water absorptive gelatinizable covering is used to promote bone growth in order to repair a bone defect and/or strengthen a weakened bone region. The delivery system may be shaped and sized in order to fit within a bleeding wound (e.g. one that is formed in the gingiva when a tooth is extracted). The covering may be formed of a gelatinizable gauze that forms a gel-like material when moistened with water. The delivery system is contained within a moisture resistant package prior to use. Alternatively, the delivery system comprises a bone growth promoting material and thickening agent contained within a syringe that, upon adding water, form a viscous gel or stiff putty. A polymerizable resin may be placed over the bone growth composition after placement on a bone to form a protective barrier layer.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: October 2, 2012
    Assignee: Ultradent Products, Inc.
    Inventor: Dan E. Fischer
  • Patent number: 8215960
    Abstract: Water and aqueous sodium hypochlorite indicating endodontic monitoring devices include a cone-shaped water absorptive material and color changing system applied thereto that selectively changes to different colors when exposed to either water or aqueous sodium hypochlorite within a root canal chamber. The devices include a pH changing material, pH indicator, and pH insensitive dye. The dye imparts an initial color when the device is dry. The pH changing material and pH indicator react with water to yield a second color. In the presence of aqueous sodium hypochlorite, the device changes to a third color different from the initial color and second color as a result of bleaching the dye and/or pH indicator. Color changing devices are manufactured by applying an aqueous solution that includes a pH changing material and dye to a water absorptive cone, drying the cone, applying an anhydrous pH indicator solution, and then drying the cone again.
    Type: Grant
    Filed: September 19, 2006
    Date of Patent: July 10, 2012
    Assignee: Ultradent Products, Inc.
    Inventors: Jeffrey A. Wagner, Dan E. Fischer
  • Patent number: 8202091
    Abstract: Non-customized dental treatment trays used to provide a desired treatment are formed from elastomeric silicone or silicone-like material. They may be injection molded from a two-part liquid silicone composition or a silicone-like TPE material (e.g., preferably SEBS and/or VERSAflex thermoplastic elastomer). The dental treatment trays possess high adaptability, flexibility, softness, and elastic elongation while also exhibiting resiliency in order to readily conform to the ridges, depressions and contours of a person's teeth during use. The trays possess a greater ability to adhere to a person's teeth compared to non-elastomeric thermoplastic materials. Due to their high adaptability and conformability, the non-customized dental trays behave like a semi-custom dental tray when placed over conformed to a person's teeth, particularly when used in combination with a sticky, viscous treatment composition.
    Type: Grant
    Filed: August 29, 2008
    Date of Patent: June 19, 2012
    Assignee: Ultradent Products, Inc.
    Inventors: Paul Lewis, Scot N. Andersen, Peter M. Allred, Dan E. Fischer
  • Publication number: 20120148972
    Abstract: Low force orthodontic arch wires (100) include a core wire (102) formed of a material having shape memory that extends along a generally curved arch wire axis between a first end (102a) and a second end (102b). The arch wire (100) further includes a plurality of bracket engagement blocks (104) disposed in spaced apart relationship along the length of the core wire (102). Each engagement block (104) is configured for placement within the slot of a corresponding orthodontic bracket with which it works to move the teeth in a desired direction. The engagement blocks (104) are advantageously enlarged relative to the core wire (102), providing for better engagement and reduced play between any given engagement block (104) and its corresponding bracket slot as compared to if the engagement blocks (104) were not present. The engagement blocks (104) may be disposed relative to the core wire (102).
    Type: Application
    Filed: June 21, 2010
    Publication date: June 14, 2012
    Applicant: ULTRADENT PRODUCTS, INC.
    Inventor: Paul E. Lewis