Abrading Or Polishing Patents (Class 433/166)
  • Patent number: 10987204
    Abstract: Oral care implement that can be detachably coupled to a handle having a motor. The oral care implement includes a drive assembly to operably engage the motor, a head portion that includes a body, a first carrier comprising a plurality of bristle tufts extending from the first carrier, the first carrier comprising a central passageway; and a second carrier disposed within the central passageway of the first carrier, the second carrier comprising an elastomeric cleaning element extending from the second carrier. The drive assembly may be operably coupled to each of the first and second carriers and configured to: (1) produce a first oscillatory motion of the first carrier about a first rotational axis; and (2) produce a second oscillatory motion of the second carrier, the second oscillatory motion being counter to the first oscillatory motion.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: April 27, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Brian Bloch, Thuanchong Tan
  • Patent number: 10952529
    Abstract: Described herein is an oral care implement that includes a head portion; a cup member extending from a front surface of the head portion along a first axis, the elastomeric cup member comprising: a top surface; a plurality of grooves formed into the top surface; a plurality of rib members, wherein adjacent ones of the grooves are separated by one of the rib members, each of the rib members extending along a rib axis that extends radially outward from the first axis, and wherein each of the rib members has a thickness that increases with distance from the first axis. The cup member may comprise a plurality of first grooves and a plurality of second grooves, and wherein each of the first grooves has a first transverse cross-section and each of the second grooves has a second transverse cross-section, the first and second transverse cross-sections being different from one another.
    Type: Grant
    Filed: November 20, 2017
    Date of Patent: March 23, 2021
    Assignee: Colgate-Palmolive Company
    Inventors: Brian Bloch, Thuanchong Tan
  • Patent number: 10864061
    Abstract: Disclosed herein is a cleaning system (30) for a dental implant part (2) that has been introduced into the jaw bone of a patient. For this purpose, in an advantageous embodiment of the invention, a securing element, which is adapted on the end side to connect to a corresponding connection element in the dental implant part, particularly preferably which can be screwed into a thread of the dental implant part by the end side, and to which a distribution element for a cleaning fluid as well as an electrical contact element can be attached, which distribution element can be connected to an external media reservoir via a media channel, and via which electrical contact element, a power source that is connectable to an external power source can be electrically connected to the dental implant part.
    Type: Grant
    Filed: August 13, 2015
    Date of Patent: December 15, 2020
    Assignee: Zyfoma GmbH
    Inventor: Urs Brodbeck
  • Patent number: 10709524
    Abstract: The present invention relates to endosseous implants and in particular, to screw form dental implants for implanting within bone. The bone implant is configured to be a self-drilling bone implant that is adept at condensing, collecting and distributing bone along all of the implant's surface and within the implantation site, to significantly increase the bone implant contact surface. The implant is configured to have a coronal portion and a body portion that are continuous with one another. The coronal portion is configured to have a smaller overall diameter than the overall diameter of said body portion. The body portion is fit with threading that facilitates the self-drilling and bone collection properties when the implant is rotates in both the clockwise and counterclockwise directions.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: July 14, 2020
    Assignee: STRAUMANN HOLDING AG
    Inventor: Ophir Fromovich
  • Patent number: 10543059
    Abstract: Method of producing a medical cutting tool and a medical cutting tool that will not rust and that is capable of stably demonstrating high strength. A working section formed by a cemented carbide or ceramic is brazed to the tip of a shank part formed by a round bar-shaped austenitic stainless steel, thereby constituting a cutting tool. The shank part includes a shank, a neck, and a joint to which the working section is brazed. At least part of the stainless steel near the joint of the neck and in the joint has a fiber-like structure. The structure of the stainless steel in the joint on the working section side has a granular structure.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: January 28, 2020
    Assignee: MANI, INC.
    Inventor: Mutsunori Shioiri
  • Patent number: 10464188
    Abstract: The present invention concerns a chemical mechanical polishing pad having a polishing layer that possesses a consistent positive zeta potential across the entire surface. Also disclosed is a chemical mechanical polishing method using the polishing pad together with a positively charged slurry.
    Type: Grant
    Filed: November 6, 2018
    Date of Patent: November 5, 2019
    Assignee: Rohm and Haas Electronic Materials CMP Holdings, Inc.
    Inventors: Matthew R. Gadinski, Mohammad T. Islam, Yi Guo, George C. Jacob
  • Patent number: 10080569
    Abstract: An improved motorized burr instrument for operation on tissue at a desired surgical site surrounding by fluid, the motorized burr instrument being operable with a variable speed motor at a rotary drive coupler with a hub extending therefrom, an outer sheath housing a rotating member extending between the rotary drive coupler and a burr having a cutting edge with at least one radial projection joining a leading and a trailing edge and rotating said fluid through the outer sheath as the cutting edge is rotated.
    Type: Grant
    Filed: June 25, 2014
    Date of Patent: September 25, 2018
    Inventor: James K Brannon
  • Patent number: 10016256
    Abstract: A dental implant site preparation tool (10) includes a shaft (12) and a working end (14). The working end includes a cutting surface (16) that includes cutting features. The working end (14) also includes a substantially smooth tip (18) that may have a convex shape. A method of preparing a dental implant site includes working the tool (10) so as to create a shape that matches that of an implant.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: July 10, 2018
    Inventor: Earl Wayne Simmons, Jr.
  • Patent number: 9873181
    Abstract: A tool, system, and process for finishing a cylindrical member is provided. The finishing tool includes an opening. The opening is sized to receive a cylindrical member. The interior wall of the tool opening is configured to reduce a roughness of the cylindrical member. The opening has a second cross-sectional area that is less than the cross-sectional area of the member. A retainer can secure the member. In response to the opening interior wall slidably contacting a finishable area of the member as the finishing tool is moved relatively closer to the member at a relative force, the roughness of the finishable area of the member is reduced to a second roughness.
    Type: Grant
    Filed: November 10, 2014
    Date of Patent: January 23, 2018
    Assignee: Caterpillar Inc.
    Inventor: Humam S. Talhami
  • Patent number: 9615895
    Abstract: An object of the present invention is to provide a dental polishing instrument that causes no clogging, that prevents occurrence of any secondary flaw, that is excellent in the polishing property, and that can provide high gloss in a short time period, for a dental prosthetic appliance difficult to polish. Another object thereof is to provide a dental polishing instrument that enables easy discharge of polishing sludge while that simultaneously shows sufficient strength. A dental polishing instrument according to the present invention can suppress clogging and occurrence of any secondary flaw due to the polishing sludge and can efficiently polish by forming a polishing abrasive grain layer including polishing abrasive grains and a resin material, into protrusions on the surface of a base material thereof and by disposing the protrusions on the base material.
    Type: Grant
    Filed: January 27, 2015
    Date of Patent: April 11, 2017
    Assignee: KABUSHIKI KAISHA SHOFU
    Inventors: Naoki Yumiyama, Osamu Asao, Masahiko Iwata, Shuji Sonoi
  • Patent number: 8956159
    Abstract: A tool bit for removing orthodontic brackets includes a handpiece-engaging portion, a shaft portion, a curved portion and a working end portion. The curved portion provides sufficient offset to present the end portion in a substantially co-planar relationship with a tooth surface. The working end portion includes at least one beveled cutting surface for cutting away the adhesive and at least one blunt/flat polishing surface for polishing away any residual adhesive that may remain after bracket removal. The tool bit may also include a cooling fluid delivery port. Edges of the beveled surfaces may be serrated. Beveled surfaces and the top surface may be coated with an abrasive material such as diamond grit. These cutting surfaces are used to cut through the adhesive layer bonding the bracket to the tooth. The tool has a blunt/flat second edge surface for polishing away any remaining adhesive after bracket removal.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: February 17, 2015
    Inventor: Chitra Shanmugham
  • Patent number: 8926324
    Abstract: A system for reconditioning a dental implant in situ comprising a buffer member, a drive member, abrasive material, and a sleeve member. The sleeve member moves between first and second positions relative to the buffer member. The buffer member is in an open configuration when the sleeve member is in the first position. The sleeve member holds the buffer member in a closed configuration when the sleeve member is in the second position. The buffer member is rotated such that the plurality of fingers of the buffer member cause the abrasive material to remove at least a portion of the texture layer on the textured portion of implant outer surface of the second implant portion.
    Type: Grant
    Filed: September 10, 2013
    Date of Patent: January 6, 2015
    Inventors: Curtis K. Wade, Charles A. McCoy, II
  • Publication number: 20140370458
    Abstract: A drilling structure is disclosed. The disclosed drilling structure may include a drill head. A bottom end of the drill head may be provided with a connecting portion for connecting an adjoining portion of the dental implant hand piece, and a top end of the drill head may be implemented in terms of a multi-facet convex polyhedron cone head. The multi-facet convex polyhedron cone head is with at least three facet.
    Type: Application
    Filed: April 22, 2014
    Publication date: December 18, 2014
    Inventor: Ming-Tzung Lee
  • Patent number: 8870571
    Abstract: A rotary dental tool. The tool comprises a blank having a shaft portion and a head portion. A single layer of grit comprising diamond crystals extends from the blank at substantially uniform height, said grit covering a predetermined proportion of the surface area of the head portion. A bonding material substantially surrounds the diamond crystals, forming micro-channels between the diamond crystals. The diamond crystal size is substantially less than other rapid cutting tools yet outperforms other tools in cutting speed, durability and smoothness of finish. The micro-channels are believed to both cool the dental tool and facilitate debris removal during use.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: October 28, 2014
    Assignee: Spectrum Systems, LLC
    Inventors: James T. Lowder, Mitchell W. Haller, Jr., Alan R. Lipp
  • Patent number: 8784102
    Abstract: A prophy cup has an outer surface with dimples formed therein. The dimples increase the turbulent flow in a boundary layer proximate to the surface. The increased turbulent flow reduces the separation of fluid (a slurry of saliva, blood and pumice) at the boundary layer to minimize the quantity of fluid ejected from the surface. A dental handpiece housing is configured to split longitudinally so that a wiper is positioned proximate to the outer surface of the prophy cup. The wiper removes slurry as the prophy cup rotates during a dental cleaning procedure to further reduce the quantity of fluid ejected from the surface during the procedure.
    Type: Grant
    Filed: September 28, 2011
    Date of Patent: July 22, 2014
    Inventor: Ajay Kumar
  • Publication number: 20140127640
    Abstract: A dental drill is disclosed which allows for an osteotomy to be formed in a shape which closely matches the cylindrical shape of many dental implants. In so doing, the implant engages more tissue of the resulting osteotomy, thus resulting in greater ability for the tissue to penetrate and fuse with the implant while also reducing the chances of infection and reducing the overall recovery time. In addition, by forming the dental drill with a relatively obtuse angulation between the termini of the drill flutes, the cutting forces are spread across a larger cutting area thus reducing wear on the drill itself. Moreover, by spreading the cutting force over a larger area, the heat generated by the drill is reduced and thus the discomfort afforded to the patient is reduced.
    Type: Application
    Filed: January 9, 2014
    Publication date: May 8, 2014
    Applicant: Zimmer Dental, Inc.
    Inventors: John Zacharia, Kim Nguyen
  • Publication number: 20140113245
    Abstract: The present invention discloses a drill bit for removing implant fastening screw which comprises the hole drilling drill bit 110 for axially drilling a hole in the fastening screw which broken or damaged in an implant and the screw lifting drill bit 130 for being firmly fixed the hole of the fastening screw and for lifting the fastening screw, and a guiding socket 120 which comprises the fastening portion 121 for being firmly fastened in the upper end portion of an implant in which a broken or damaged fastening screw is remained and a guiding portion 122 for guiding the hole drilling drill bit 110 to meet the central axis of the fastening screw and the central axis of the hole drilling drill bit 110.
    Type: Application
    Filed: December 16, 2013
    Publication date: April 24, 2014
    Applicants: Neobiotech Co., Ltd.
    Inventor: Young Ku Heo
  • Publication number: 20140106297
    Abstract: A dental bur and method for removing a soft deposit from a tooth or an implant, the bur having a shank adapted to be connected to a rotary device. A head extends from the shank. The head has a material hardness adapted to remove soft deposits attached to the tooth but deflect against the tooth. Furthermore, the head is sized for insertion into a periodontal pocket adjacent to the tooth without surgery. Thus, the dental bur may be rotated against the tooth for removing the soft deposits but deflect and/or wear against the tooth for preventing damage to the tooth.
    Type: Application
    Filed: March 15, 2013
    Publication date: April 17, 2014
    Applicants: University of Zurich, KerrHawe SA
    Inventors: Patrick R. Schmidlin, Beat Kilcher, Marco Da Rold
  • Publication number: 20140065573
    Abstract: Disclosed is a drill for implant surgery drill for implant surgery. The drill includes a drill connecting part having a drill top portion formed at one side of the top portion thereof, a drill fixing groove formed on the lower portion of the drill top portion, and a drill connecting body formed on the lower portion of the drill fixing groove; and a drilling part disposed on the underside of the drill connecting part and having a cylindrical shape in such a manner as to be small in diameter toward the lower portion thereof and to have a space portion formed at the inside thereof.
    Type: Application
    Filed: March 20, 2012
    Publication date: March 6, 2014
    Applicant: INNOBIOSURG
    Inventor: Je-Won Wang
  • Publication number: 20140017630
    Abstract: A dental polisher is provided comprising a cup, finger projections positioned within the cup and a drill attachment on the cap for attaching the cup to a dental drill. The finger projections and the rim of the cup are formed of abrasive materials. The cup may contain a polishing material.
    Type: Application
    Filed: September 16, 2013
    Publication date: January 16, 2014
    Inventor: Paul R. Chalifoux
  • Publication number: 20130302751
    Abstract: Provided are abrasive assemblies and related methods that combine a head portion including an integral abrasive member and a drive portion including a resilient cylindrical mandrel. The abrasive member has a receptacle that is complemental to a working end of the mandrel when both members are relaxed. As the abrasive member engages to, or disengages from, the mandrel, the receptacle resiliently expands and the working end of the mandrel resiliently compresses, each in cooperation with the other. Optionally, the abrasive member is maintained in compression in both directions parallel and perpendicular to the longitudinal axis of the mandrel. Advantageously, these assemblies provide for superior retention and slip resistance, ease-of-use, and high manufacturing tolerances.
    Type: Application
    Filed: November 11, 2011
    Publication date: November 14, 2013
    Applicant: 3M INNOVATIVE PROPERTIES COMPANY
    Inventors: Steven J. Maxa, Dwight W. Jacobs
  • Patent number: 8529259
    Abstract: A system for reconditioning a dental implant in situ has a buffer member and a drive member. The buffer member is operable in an open configuration in which the buffer member may be placed over a portion of the implant and a closed configuration in which the buffer member is in contact with the portion of the implant. The drive member is adapted to engage the buffer member such that rotation of the drive member is transferred to the buffer member. Rotation of the drive member with the drive member engaged the buffer member and the buffer member in the closed configuration causes rotation of the buffer member such that the buffer member abrades at least a portion of the surface of the implant.
    Type: Grant
    Filed: July 29, 2011
    Date of Patent: September 10, 2013
    Inventors: Curtis K. Wade, Charles A. McCoy, II
  • Patent number: 8506295
    Abstract: A file for working on the interproximal space in orthodontics as well as in conservative treatments and prophylaxis of teeth comprises a tool-holding structure and an abrasive plate, wherein the tool-holding structure is shaped in an arc and provided at the ends with two tubular portions and wherein the abrasive plate is stably fixed at both of its ends to the tubular portions of the tool-holding structure, wherein the tool-holding structure is symmetrical and overmolded on said abrasive plate. A relative device able to be connected to an oscillating handpiece comprises such a file and a shank for the connection to the handpiece, wherein the shank is removably fixed to the file.
    Type: Grant
    Filed: February 16, 2010
    Date of Patent: August 13, 2013
    Assignee: SDC Switzerland SA
    Inventor: Peter Rek
  • Publication number: 20130183636
    Abstract: A rotary dental tool. The tool comprises a blank having a shaft portion and a head portion. A single layer of grit comprising diamond crystals extends from the blank at substantially uniform height, said grit covering a predetermined proportion of the surface area of the head portion. A bonding material substantially surrounds the diamond crystals, forming micro-channels between the diamond crystals. The diamond crystal size is substantially less than other rapid cutting tools yet outperforms other tools in cutting speed, durability and smoothness of finish. The micro-channels are believed to both cool the dental tool and facilitate debris removal during use.
    Type: Application
    Filed: December 21, 2012
    Publication date: July 18, 2013
    Applicant: Spectrum Systems, LLC
    Inventor: Spectrum Systems, LLC
  • Publication number: 20130171582
    Abstract: Provided is an abrasive tip with which a tip, a curette, or the like can be readily sharpened by anyone without requiring skill gained through experience. Provided is a shaft (2) that is detachably attached to an end of a handpiece of a dental ultrasonic scaler or a dental air scaler, and a flat plate (3) extending continuously from an end of the shaft (2) and having a top surface (9), a bottom surface, two side surfaces (11), and a front surface (12).
    Type: Application
    Filed: October 21, 2010
    Publication date: July 4, 2013
    Inventors: Masanori Nishikibe, Mitsuyoshi Nishikibe
  • Publication number: 20130149666
    Abstract: A dental polisher is provided, wherein the dental polisher includes finger projections positioned within the cup and a drill attachment on the cap for attaching the cup to a dental drill. The finger projections and the rim of the cup are formed of abrasive materials. The cup possesses the capacity to contain a polishing material.
    Type: Application
    Filed: December 13, 2011
    Publication date: June 13, 2013
    Inventor: Paul R. Chalifoux
  • Patent number: 8382479
    Abstract: According to one embodiment, an apparatus for removing enamel from a person's tooth includes a blade portion and a handle portion. The blade portion includes an abrasive surface adapted to remove enamel from the tooth in response to reciprocating movement of the abrasive surface against the enamel of the tooth. The handle portion is coupled to the blade portion, has a substantially solid cross-section, and is adapted to be inserted into a corresponding opening in a driver mechanism that is adapted to drive reciprocating movement of the blade portion to provide the reciprocating movement of the abrasive surface.
    Type: Grant
    Filed: January 28, 2011
    Date of Patent: February 26, 2013
    Inventor: Carlos F. Navarro
  • Patent number: 8337204
    Abstract: A rotary dental tool. The tool includes a blank having a shaft portion and a head portion. A single layer of diamond crystals extends from the blank at substantially uniform height, the diamond crystals covering a predetermined proportion of the surface area of the head portion. A bonding material substantially surrounds the diamond crystals, forming micro-channels between the diamond crystals. The diamond crystal size is substantially less than other rapid cutting tools yet out performs other tools in cutting speed, durability and smoothness of finish. The micro-channels are believed to both cool the dental tool and facilitate debris removal during use.
    Type: Grant
    Filed: September 26, 2005
    Date of Patent: December 25, 2012
    Assignee: Spectrum Systems, LLC
    Inventors: James T. Lowder, Mitchell W. Haller, Jr., Alan R. Lipp
  • Patent number: 8147245
    Abstract: An acoustically activated dental instrument that comprises a working head attached to a shaft, the working head being covered with abrasive particles at its front end portion and having a spherical basic shape at its distal end, the outside of which is covered with abrasive particles. The working head is flattened at an upper side substantially up to a center plane of the spherical basic shape, and is flattened on the lower side opposite to the upper flattened side.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: April 3, 2012
    Assignee: Gebr. Brasseler GmbH & Co. KG
    Inventors: Marcus Striegel, Thomas Schwenk
  • Patent number: 8109763
    Abstract: An endodontic file (2) for use with a dental instrument has at least one cord (6) and a wire (8) wound around at least a major portion of the cord and having an abrasive outer surface (10). A handle having a gripping section is provided for gripping the end of the file and is coupled to the file by a coupler that may be made of a vibration absorbing material.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: February 7, 2012
    Assignee: Medic.NRG Ltd.
    Inventors: Haim Levy, Arie Becker, Simon Rothenstein
  • Publication number: 20110256505
    Abstract: An ultrasonic tip for use in dental procedures comprising a hub portion, a tip portion and an intermediate portion, the tip having one or more bends between the hub and the tip, the one or more bends providing an offset of the tip from the location of the hub.
    Type: Application
    Filed: April 15, 2011
    Publication date: October 20, 2011
    Inventor: L. Stephen Buchanan
  • Publication number: 20110256504
    Abstract: The present invention relates to a dental safe edge interproximal disk for stripping the interproximal contact area of adjacent teeth wherein an abrasively coated circular disk has an uncoated periphery which facilitates the initial entry of the disk between the contact points.
    Type: Application
    Filed: April 20, 2010
    Publication date: October 20, 2011
    Inventor: Robert T. Rudman
  • Publication number: 20110244420
    Abstract: Provided is a dental handpiece adapter connection system, dental handpiece adapter connection method, and a dental handpiece adapter. The dental handpiece adapter includes a first portion configured to engage a dental device having a first geometry and a second portion configured to engage a dental handpiece having a second geometry. The first portion being engaged with the adapter and the second portion being engaged with the adapter permits the dental handpiece to rotate a rotatable portion of the dental device.
    Type: Application
    Filed: October 1, 2010
    Publication date: October 6, 2011
    Applicant: DENTSPLY INTERNATIONAL, INC.
    Inventors: Benjamin Chronister, Jeremy Kile
  • Publication number: 20110207081
    Abstract: Embodiments of the present invention include devices and methods that provide an effective endodontic drill bit to drill postholes for use in root canals and similar or related dental procedures. In particular, example embodiments of the present invention provide an endodontic drill bit that can be used by a dental professional to drill a posthole with a particular diameter, while at the same time causing the side wall surfaces of the posthole to include a texture that can increase the mechanical retention of a dental post in the posthole. In example embodiments, the endodontic drill bit includes an abrasive grit that is attached or is part of the land of the endodontic drill bit.
    Type: Application
    Filed: February 24, 2011
    Publication date: August 25, 2011
    Applicant: CAO GROUP, INC.
    Inventor: Steven D. Jensen
  • Publication number: 20110207079
    Abstract: The present application describes apparatus and methods for coating a base surgical or dental implement with a nickel boron or nickel phosphorous coating.
    Type: Application
    Filed: January 27, 2011
    Publication date: August 25, 2011
    Inventor: Jerry A. Rubin
  • Patent number: 7878807
    Abstract: According to one embodiment, an apparatus for removing enamel from a person's tooth includes a blade portion and a handle portion. The blade portion includes an abrasive surface adapted to remove enamel from the tooth in response to reciprocating movement of the abrasive surface against the enamel of the tooth. The handle portion is coupled to the blade portion, has a substantially solid cross-section, and is adapted to be inserted into a corresponding opening in a driver mechanism that is adapted to drive reciprocating movement of the blade portion to provide the reciprocating movement of the abrasive surface.
    Type: Grant
    Filed: January 28, 2008
    Date of Patent: February 1, 2011
    Inventor: Carlos F. Navarro
  • Publication number: 20100266984
    Abstract: A bur for maxillary sinus augmentation is disclosed. The bur uses a drill for rapid and easy perforation and expansion of maxilla as a preliminary surgery such that easy and convenient placement of dental implants is carried out without injuring subantral membrane. The bur includes a head, a body, a tool mount, and a perforation bur for a crestal approach technique including a head having a round top coated with irregular coarse diamond particles.
    Type: Application
    Filed: June 5, 2009
    Publication date: October 21, 2010
    Inventor: Sung Min JUNG
  • Publication number: 20100248182
    Abstract: This invention discloses a carbide bar for a dental rotary instrument which eliminates defects of the prior art. In the prior art, blades of the carbide bar are twisting on to rightward from a bottom to a top portion and this twisting offers some inconvenience such as detaching connection between hand piece and the bar during rotation work and stacking of cutting dusts for ill efficiency. This invention has now developed a new method for the blades, which should be twisted leftward from the bottom to the top to clear the submitted inconvenience.
    Type: Application
    Filed: December 24, 2009
    Publication date: September 30, 2010
    Applicant: SHOFU INC.
    Inventors: Shuji Sonoi, Osamu Asao, Masako Shigezawa
  • Patent number: 7785106
    Abstract: A dental prophy chip with a hollow core of different shapes such as canopy, cylinder, cup and inverted cone, is covered by hydrophilic grindstone sponge containing a polishing agent and its edge is either pressed fixed or folded into the interior of the core with a latch plate. A shaft is fixed to the latch plate to avoid resonance at bottom surface, during rotation. The device maintains polishing efficiency by avoiding transverse oscillation in polishing barrel-shaped tooth clearance and reducing frictional heat.
    Type: Grant
    Filed: August 20, 2003
    Date of Patent: August 31, 2010
    Inventor: Atsushi Takahashi
  • Patent number: 7758344
    Abstract: An implant fixture is disclosed. The implant fixture includes an elongated body extending along a longitudinal axis. The elongated body includes a base portion having a non-circular cross section and a receiver adapted to receive a prosthetic. A root portion extends from the base portion away from the receiver. An extension portion extends from the root portion away from the base portion. The extension portion extends primarily along one side of the longitudinal axis. A kit containing a plurality of implant fixtures having different configurations is also disclosed. Further, a method of inserting the implant fixture into a patient is also disclosed. The method uses piezoelectrically generated energy to seat the implant fixture in the patient's bone.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: July 20, 2010
    Assignee: Form and Function Dental Services, P.C.
    Inventor: Dumitru Gogarnoiu
  • Patent number: 7758343
    Abstract: According to one embodiment, an apparatus for removing enamel from a person's tooth includes a blade portion and a handle portion. The blade portion includes an abrasive surface adapted to remove enamel from the tooth in response to reciprocating movement of the abrasive surface against the enamel. The handle portion is coupled to the blade portion and includes first and second regions, the first region is proximal and the second region is distal to the blade portion. The first region includes a substantially solid cross-section with a substantially circular perimeter. The second region includes a substantially solid cross-section with at least a substantially semi-circular perimeter, the solid cross-section defining a notched region. The apparatus is adapted to be inserted via a pressure fit into a corresponding opening in a driver mechanism adapted to drive reciprocating movement of the blade portion and the abrasive surface.
    Type: Grant
    Filed: January 15, 2009
    Date of Patent: July 20, 2010
    Inventor: Carlos F. Navarro
  • Publication number: 20100092919
    Abstract: The present invention provides a dental grinding bur with a coating material on an identification part that does not peel off easily and does not require formation of a groove in order to apply the coating material on the identification part. It includes a rod-shaped base 11, a grinding part 11b, which is at the tip of the base and fixated with abrasive grains, and an identification part 11a, which is at the periphery of the base adjacent to a grinding part and coated with an insulating, pigmented coating material. The identification part 11a has a uniform circumferential thickness, and the central portion of the identification part 11a is coated to be in a thick mountain-shaped curve. Consequently, forming of a groove for applying the coating material in the identification part is not needed, and the coating material on the identification part does not peel off easily.
    Type: Application
    Filed: August 28, 2007
    Publication date: April 15, 2010
    Inventors: Kanji Matsutani, Satoshi Tetsuka
  • Publication number: 20100009315
    Abstract: An acoustically activated dental instrument that comprises a working head attached to a shaft, the working head being covered with abrasive particles at its front end portion and having a spherical basic shape at its distal end, the outside of which is covered with abrasive particles. The working head is flattened at an upper side substantially up to a center plane of the spherical basic shape, and is flattened on the lower side opposite to the upper flattened side.
    Type: Application
    Filed: July 14, 2009
    Publication date: January 14, 2010
    Applicant: GEBR. BRASSELER GMBH & CO. KG
    Inventors: Marcus STRIEGEL, Thomas SCHWENK
  • Publication number: 20090208903
    Abstract: The shank (12) of a disposable rotary cutting tool (10) comprises a pipe section (16) cut from a drawn metal pipe. The tool head (14) is formed from a cut-out (18a, 18b) of a drawn metal sheet or a section of a metal tube by non-cutting machining. The pipe section (16) and the tool head (14) are advantageously attached by force fitting.
    Type: Application
    Filed: April 6, 2009
    Publication date: August 20, 2009
    Applicant: Straumann Holding AG
    Inventor: Stephane Courvoisier
  • Publication number: 20090170053
    Abstract: Provided is a cutting bar for dental use that can cut both dentin and enamel with a single bar unanesthetically and efficiently without causing any pain or unpleasant sensation in a patient, in particular, a cutting bar for dental use that can fundamentally solve the problem in that a cutting blade of a cutting bar rotating at low speed comes into contact with hard enamel present in a surface layer of a tooth during cutting of carious dentin to cause unpleasant sensation in a patient. A cutting bar for dental use includes a head in which a cutting blade is formed; a neck leading to the head; and a handle joined to the neck through an intermediation of a joint portion, wherein diamond abrasive grains are electrodeposited in a predetermined range extending from a substantially maximum diameter portion of the head to the neck.
    Type: Application
    Filed: May 17, 2007
    Publication date: July 2, 2009
    Applicant: Nihon University
    Inventor: Takuji Ikemi
  • Publication number: 20090162812
    Abstract: A system of conically shaped dental burs mounted on the end of cylindrical shafts is disclosed. In one embodiment, the tip of the cone presents an abrasive surface, while the basal edge of the conical surface presents a smooth surface useful for limiting the overall penetration of the bur. This may be used for crafting grooves or fossae on dental surfaces. In an alternate embodiment the tip portion of the conical bur presents the smooth limiting surface, and the peripheral edges are abrasive, so that this bur is useful for reducing cusps or ridges. The burs are used with the axis of rotation perpendicular to the plane of the tooth. They used alternately by the dental practitioner in the detailed sculpting of dental composite fillings. The shaft portion incorporates finished shapes commonly used for either high speed or low speed bur drive systems.
    Type: Application
    Filed: December 20, 2007
    Publication date: June 25, 2009
    Applicant: BHR PROJECT LLC
    Inventor: George Harouni
  • Publication number: 20090117517
    Abstract: A dental crown preparation instrument and method for producing same includes a first body produced by grinding, the first body having a substantially cylindrical shaft and a head connected to the shaft, the first body having outer dimensions being substantially equal to the finished preparation instrument, wherein a basic toothing is at first produced in the head by grinding and a secondary toothing is produced subsequently by grinding, wherein a cutting rate of 15 to 40 m/sec is selected for the grinding process, wherein the grinding wheel is moved with a feed rate of 10 to 50 mm/min and the grinding wheels have diamond particles and have a grain size of 15 to 62 ?m, and wherein the toothings have cutting edges featuring a surface roughness of not more than 2.5 ?m.
    Type: Application
    Filed: November 1, 2007
    Publication date: May 7, 2009
    Inventor: Andreas Koster
  • Publication number: 20090081609
    Abstract: A disposable prophy angle for mounting on a powered dental handpiece with an elastomeric grip where the elastomer of the grip is disposed along the back of the neck, the back of the shoulder, and about the base of the device so that the prophy angle may be comfortably grasped by the fingers and thumb of a user, so that it will resist slippage from the user's hand, and so that it will tactilely direct the user's fingers and thumb into the proper position to handle the prophy angle in an effective manner.
    Type: Application
    Filed: September 24, 2007
    Publication date: March 26, 2009
    Applicant: Sunstar Americas, Inc.
    Inventors: Russell Glen Kalbfeld, Richard Gross, Randy Soibel
  • Publication number: 20090068614
    Abstract: The present invention provides a dental polishing article having excellent polishability, which can polish dental composite resin, porcelain, dental restorative and prosthetic materials and teeth at a low cost, conveniently in a short time. More specifically, the present invention provides a dental polishing article which comprises a polishing portion formed by compounding polishing grains in an elastomer binder, and the polishing portion further comprising spherical resin particles.
    Type: Application
    Filed: May 10, 2006
    Publication date: March 12, 2009
    Applicant: Kabushiki Kaisha Shofu
    Inventors: Syuji Sonoi, Osamu Asao
  • Publication number: 20090042166
    Abstract: Abrasive tools (particularly dental tools), and methods of using and making such tools, wherein the abrasive tools include an elastomeric binder (e.g., one prepared from a fluoroelastomer) and agglomerate particles that include an oxide matrix (preferably, silica) and abrasive particles (preferably, diamond).
    Type: Application
    Filed: December 28, 2006
    Publication date: February 12, 2009
    Inventors: Bradley D. Craig, Susan J. Newhouse, Timothy D. Fletcher, Dwight W. Jacobs, Mitchell R. Watson, James C. Margl