US3780437A - Orthodontic bracket - Google Patents

Orthodontic bracket Download PDF

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Publication number
US3780437A
US3780437A US00231139A US3780437DA US3780437A US 3780437 A US3780437 A US 3780437A US 00231139 A US00231139 A US 00231139A US 3780437D A US3780437D A US 3780437DA US 3780437 A US3780437 A US 3780437A
Authority
US
United States
Prior art keywords
locking member
portions
arch wire
groove
collar
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US00231139A
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English (en)
Inventor
A Wildman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manufacturers Hanover Trust Co
CONSYNE CORP
Original Assignee
CONSYNE CORP
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CONSYNE CORP filed Critical CONSYNE CORP
Application granted granted Critical
Publication of US3780437A publication Critical patent/US3780437A/en
Assigned to SYBRON CORPORATION, A CORP. OF N.Y. reassignment SYBRON CORPORATION, A CORP. OF N.Y. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: AMERICAN HOSPITAL SUPPLY CORPORATION A CORP. OF ILL.
Assigned to ORMCO CORPORATION, A CORP. OF DE. reassignment ORMCO CORPORATION, A CORP. OF DE. ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: SYBRON CORPORATION
Assigned to MANUFACTURERS HANOVER TRUST COMPANY reassignment MANUFACTURERS HANOVER TRUST COMPANY ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: BARNSTEAD COMPANY, BOTHNIA HOLDINGS, INC., ERIE SCIENTIFIC COMPANY, KERR MANUFACTURING COMPANY, MEXOSERV COMPANY, NALGE COMPANY, ORMCO CORPORATION, SAC/BARNSTEAD, INC., SAC/CK, INC., SAC/ERIE, INC., SAC/KERR, INC., SAC/NALGE, INC., SAC/ORMCO, INC., SAC/RESIDUAL, INC., SAC/THERMO-BARN, INC., SAC/THERMOLYNE, INC., THERMOLYNE CORPORATION, THERMOLYNE HOLDINGS, INC.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/12—Brackets; Arch wires; Combinations thereof; Accessories therefor

Definitions

  • finger has a rounded labial surface blending with a la- [211 APPL 231,139 bial portion of a head of the body and has wedging 7 surfaces adapted to move the follower to its open position.
  • a snap ring engages somewhat abrupt shoulders :J-So u a t a t A [58] C closed position, and g g less abrupt Shoulders on 1 led 0 earch A the follower to weakly the follower in i p position.
  • the body has a saddle horn portion to con- [56] Refe n Ci nect elastics to the body, and has notches for receiving UNITED STATES PATENTS auxll'ary equ'pmem- 3,578,744 5/l97l Wildman 32/14 A 13 Claims, 9 Drawing Figures PATENTEDUEEZSIQIS 3,780,437
  • bands and arch wires are formed in an ideal model and then transferred to the patient.
  • an othodontist is enabled to perform the difficult and intricate task of forming an arch wire so as to obtain the desired tooth movement on an ideal model of the teeth of the patient while the arch wire is out of the mouth. There after, the arch wire can be transferred to the patients mouth and easily and quickly secured to the individual teeth by the novel brackets of the invention.
  • arch wire brackets are secured by bands to the teeth of a patient after which an impression is made of the patients mouth. After removal of the impression, replicas of the brackets are inserted in a corresponding position in the impression and a casting made of the teeth in the course of which the brackets will become rigidly attached to the tooth castings. Thereafter, the individual tooth castings are separated and reset in an ideal model of the patients mouth whereupon an arch wire can be formed so as to conform to the bracket locations of the teeth in the ideal model. After formation of such wire, it is transferred to the patients mouth, whereupon the memory of the wire will apply corrective force to the teeth causing them to move towards their ideal location.
  • the invention includes an improved orthodontic bracket in which a snap ring engages first interlocking portions of a follower with a strong detenting force for holding the follower in a closed position on a body, and engages second interlocking portions on the follower for holding the follower in an open position with a weaker detenting force.
  • the bracket may have a cleat for attachment of elastics, and may have connections for an auxiliary collar for engaging the arch wire outboard of the bracket to increase leverage on the bracket.
  • FIG. 1 is an exploded perspective view of an improved orthodontic bracket forming one embodiment of the invention
  • FIG. 2 is a perspective view of an auxiliary collar of the bracket of FIG. 1;
  • FIG. 3 is a top plan view of the bracket of FIG. 1;
  • FIG. 4 is a vertical sectional view taken along line 4-4 of FIG. 3;
  • FIG. 5 is a vertical sectional view taken along line 5-5 of FIG. 3;
  • FIG. 6 is a vertical sectional view similar to FIG. 5 but with parts of the bracket in different positions;
  • FIG. 7 is a fragmentary, inverted, elevation view of the auxiliary collar with an attachment
  • FIG. 8 is a partially sectional, inverted, elevation view of the auxiliary collar and attachment.
  • FIG. 9 is a fragmentary, elevation view of two auxiliary collars and a wire interconnecting the collars.
  • a bracket 10 forming one embodiment of the invention and including a body 11 having a base 12 adapted to be secured as by brazing or other suitable means to a tooth band 14 which is mounted upon the patients tooth in any conventional manner.
  • the bracket also includes a head portion 16 having a saddle horn or cleat 17 having a labial surface 18.
  • the base and head portions are preferably of circular configuration, but need not be so, and extending between them is a shank 20 which is of reduced diameter with respect to both the base portion 12 and the head portion 16.
  • the head portion 16 is formed with a horizontal groove 28 therein for receiving an arch wire 30.
  • both the groove 28 and the arch wire 30 are of rectangular configuration.
  • the head portion 16 is also provided with a vertical slot or notch 26.
  • a vertical groove or guideway 32 extends through the base and shank portions and preferably being of rectangular cross section.
  • the slot 26 extends between the groove 32 and outer, plan'ar face 34 of the head.
  • the base 12 has a planar, annular surface 33 and a concave, frustospherical portion 35 to accommodate the convex portion of a tooth.
  • a generally U-shaped locking member or follower 38 includes a base 40 having a slide 41 of rectangular cross section adapted to be slidably received within the groove 32 and a latching portion 43. Extending forwardly from the base 40 is an arm or bridge 42 fitting closely and slidably in the slot 26. At the end of the arm 42 is a button-like locking finger or head 44 adapted to extend across the open side of the groove 28 and hold the arch wire 30 when the same is in the groove 28, compound inclined wedging or camming face 47 of the finger 44 serving to force the arch wire into the groove when the follower is moved to its closed position if the arch wire is initially only half way in the groove.
  • the finger covers the entire length of the groove to give good leverage from the arch wire to the bracket. The finger has no rough edges or sharp corners.
  • the follower 38 is adapted to be locked in place by a snap ring 46 (FIGS. 4 and 5) which, in turn, is adapted to be engaged about the shank 20, pointed, slightly hooked end portions 49 of the snap ring extending over sloping, rounded, shoulders 51 of strongly detenting notches 53 of the latching portion 43 when the follower is in its closed position as shown in FIG. 5.
  • This locking action prevents popping open of the follower.
  • the latching portion has less strongly detenting notches 56 having gently tapering or inclined surfaces 58 providing a weak detenting action to move the follower to and hold the follower in its open position as shown in FIG. 6. Abrupt shoulders 60 prevent upward movement of the follower beyond its open position.
  • the snap ring 46 holds the follower in its closed position with a strong detenting action, and holds the follower in its open position with a less strong, somewhat soft detenting action.
  • the orthodontist merely presses, with a finger or tool, the follower down until the snap ring engages the rounded shoulders, and then the snap ring pulls the follower down until end 62 (FIG. 4) of the finger 44 engages the saddle horn 17.
  • the finger 44 has inclined or wedging edge portions 64 opposite planar edge 66 of the saddle horn, and jaws of a plier-like tool may be forced between the portions 64 and the edge 66 to wedge the follower slightly away from its closed position until the pointed end portions 49 of the snap ring are in engagement with the inclined surfaces 58. Then the snap ring forces the follower to its open position in which the finger 44 clears the groove 28.
  • the snap ring acts as an overcenter spring to either snap the follower closed or to move the follower to a fully open position. The follower opens with a click and closes with a click.
  • Labial surface 70 of the finger and labial surface 18 of the saddle horn 17 form a button-like or frustospherical surface so as to not irritate adjacent portions of the mouth. It should be noted that biting action of the user always tends to move the follower toward its closed position.
  • the snap ring 46 (FIGS. and 6) is provided with inclined end surfaces 71.
  • the follower 38 To assemble the follower 38 with the body, the lower end of the follower is pushed against the end surfaces 71 to spread the ends of the snap ring apart, and the follower is pushed on into the slot 32 at least to its open position. The follower keeps the snap ring from rotating on the bracket.
  • An elongated, rigid, C-shaped auxiliary collar 80 may be mounted on the bracket when, for example, there is desired greater leverage for rotation of the tooth than is provided by engagement of the bar-like arch wire 30 with the outer ends of the bottom of the groove 28.
  • aligned pintle portions 82 of the collar are inserted into notches 84 in the head 16 and the connecting bar 86 of the collar is snapped over the saddle horn 17.
  • the arch wire 30 is inserted into the groove 28 and pressed into engagement with the bottom surfaces of the aligned, outboard grooves 92 formed in the opposite wings 94 of the collar.
  • the follower 38 is then moved downwardly into its locked, operative position whereupon the arch wire 30 is relatively rigidly engaged within the groove 28, the arch wire in turn pressing against the auxiliary collar 80 so that the pintle portions 82 bear against the sidewalls or stop portions 90 defining in part the notches 84 and the connecting bar 86 of the collar bears against the inclined surface 88 which also acts as a stop portion.
  • the arch wire 30 may be removed from the bracket for adjustment and replacement without requiring removal of the collar 80.
  • the saddle horn 17 has a bar-like cleat 93 having end surfaces 95 forming portions of the same cylinder as the head 16 and radially external surface 97 of the follower 38.
  • the saddle horn also has a reduced shank 99.
  • the cleat 93 is relieved at 98 to permit the auxiliary collar 80 to be snapped over it during assembly or disassembly.
  • the saddle horn serves as a connector for an arch wire, elastics or other auxiliary devices, a groove 101 being provided for a round arch wire, the finger 44 holding the round arch wire in the groove.
  • the bar 86 (FIG. 2) of the auxiliary collar 80 may have holes 81 therein for attaching wires or other auxiliary equipment to the collar. Also, auxiliary equipment may be brazed or welded to the bar 86. For example,
  • a wire, a spring or a buccal tube may be brazed to the bar 86 for attachment of springs, arch wires, retraction devices or other auxiliaries.
  • Inner edge portions 107 also provide areas for attachment of auxiliary devices.
  • the collar may be provided with fulcrum projections projecting from the bottom of the groove 92 at the end portions of the groove 92 to increase the rotation leverage.
  • the bracket, collar and follower are preferably formed of stainless steel, scandium or other suitable corrosion resistant, high strength metal and can obviously also be formed of high strength plastic or other material.
  • the groove 28 and arch wire 30 are preferably of such dimension as to form a close fit, but they should, at the same time, permit some longitudinal movement of the arch wire 30 through the groove 28. Such movement is necessary, of course, to permit adjustment of the position of the bracket on the arch wire as a tooth rotates under pressure applied to it through the arch wire.
  • the clearance between the finger 44 and an arch wire 30 must be such as to permit sliding movement of the wire.
  • the follower 38 is mounted on the body 11 with the snap ring 46 engaged in the notches 56 so that the groove 28 is clear.
  • the arch wire 30 is then inserted within the groove 28 and positioned against the rear wall of such groove and pressure then applied to the follower 38 to cause it to move downwardly, thereby moving the finger 44 over the arch wire 30 to hold it in position.
  • the snap ring closes over the tops of the shoulders 51 to retain the follower in its closed position with a strong detenting force.
  • the process is reversed, that is, the orthodontist pushes the follower to its open position with a suitable plier-like tool ifdesired to move the follower 38 upwardly until the ends of the snap ring 46 engage in the notches 56. At this point the finger 44 will have cleared the groove 28 so that the arch wire 30 can be moved sideways and out of the groove 28. While the bracket of this embodiment has been illustrated in connection with a rectangular arch wire 30, it will be obvious that round arch wires or bundles or two or more arch wires can be suitably utilized.
  • auxiliary collar shown in an inverted position
  • a tube 122 may be welded to the collar.
  • two auxiliary collars 80 are shown with a wire 124 passing through tubes 122.
  • the constructions shown are merely illustrative of the many attachments that may be made to the auxiliary collars.
  • auxiliary collar of a predetermined length having an opening therethrough and having a shallow groove
  • a body having a base and head portion having an arch wire receiving groove open at the side thereof more remote from the base,
  • the collar being adapted to be passed over the head portion and engage the side of an arch wire in the groove adjacent the base at points spaced substantially beyond the ends of the groove,
  • the body having stop portions holding the collar in a position in which the portions of the collar beyond the ends of the groove aresubstantially flush with the bottom of the groove
  • a body having a guideway and a retaining opening open at one side
  • a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion,
  • the locking member having shoulder portions engaged by the detenting spring for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body,
  • the locking member also being provided with sloping camming portions engagable by the detenting spring to hold the locking member in an open position with a force substantially less than said predetermined force.
  • a body having a guideway and a retaining opening open at one side
  • a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion,
  • the locking member and the detenting spring having first interlocking portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body,
  • the locking member and the detenting spring also being provided with second interlocking portions for holding the locking member in an open position with a force substantially less than said predetermined force
  • the locking member having a first pair of notches defining the first interlocking portions and a second pair of notches defining the second interlocking portions
  • the first pair of notches having sides with a predetermined slope and the second pair of notches having sides with a slope substantially less than said predetermined slope.
  • a body having a guideway and a retaining opening open at one side
  • a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the opening and a latching portion,
  • the locking member and the detenting spring having first interlocking shoulder portions for holding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body,
  • the locking member and the detenting spring also being provided with second interlocking cam portions for holding the locking member in an open position with a force substantially less than said predetermined force
  • the end portions of the spring extending over one end of the guideway and being bevelled to facilitate insertion of the locking member into the guideway.
  • an orthodontic arch wire receiving bracket including a body having a guideway and an arch wire receiving groove open at one side,
  • a locking member having a slide portion slidable in the guideway, a locking portion for covering said one side of the groove and a latching portion,
  • the locking member and the detenting spring having interlocking shoulder and detent portions for bolding the locking member against movement relative to the body with a predetermined force when the locking member is in a closed position relative to the body
  • the locking member and the detenting spring also being provided with interlocking sloping cam and detent portions for holding the locking member in an open position with a force substantially less than said predetermined force.
US00231139A 1972-03-02 1972-03-02 Orthodontic bracket Expired - Lifetime US3780437A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23113972A 1972-03-02 1972-03-02

Publications (1)

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US3780437A true US3780437A (en) 1973-12-25

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Family Applications (1)

Application Number Title Priority Date Filing Date
US00231139A Expired - Lifetime US3780437A (en) 1972-03-02 1972-03-02 Orthodontic bracket

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US (1) US3780437A (de)
JP (1) JPS4948186A (de)
DE (1) DE2252876C3 (de)
FR (1) FR2174023B1 (de)

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959880A (en) * 1974-08-14 1976-06-01 Andrews Lawrence F Spring-stressed orthodontic bracket
US4443189A (en) * 1982-10-15 1984-04-17 Wildman Alexander J Multi-purpose orthodontic bracket
US5018259A (en) * 1988-09-21 1991-05-28 Wildman Alexander J Method of design and manufacture of laminated orthodontic brackets
US5094614A (en) * 1991-03-08 1992-03-10 Wildman Alexander J Miniature self-locking labial bracket
US5322435A (en) * 1992-07-23 1994-06-21 Pletcher Erwin Carroll Orthodontic bracket
US5356288A (en) * 1992-12-07 1994-10-18 Howard Cohen Dual orthodontic bracket
US5474444A (en) * 1988-09-26 1995-12-12 Wildman; Alexander J. Multiwire arch system
US5511976A (en) * 1993-09-14 1996-04-30 Wildman; Alexander J. Lingual bracket with hinged camming closure
WO1996039093A1 (en) 1995-06-05 1996-12-12 Wildman Alexander J Lingual bracket with hinged camming closure and releasable lock
WO1997014370A1 (en) * 1995-10-17 1997-04-24 Goldschmied Pty. Ltd. Orthodontic appliance
US5630715A (en) * 1993-01-21 1997-05-20 Voudouris; John C. Orthodontic bracket with an engagement mechanism for retaining an archwire
US5791897A (en) * 1992-02-26 1998-08-11 Wildman; Alexander J. Multiwire arch system with improved interarch connector
US6247923B1 (en) 2000-05-24 2001-06-19 Nikhil Shankarlal Vashi Self-locking orthodontic bracket
US6257883B1 (en) 1994-03-07 2001-07-10 John C. Voudouris Orthodontic bracket
US20050255422A1 (en) * 2004-05-11 2005-11-17 Cordato Mark A Orthodontic bracket and clip
US20070166658A1 (en) * 2006-01-13 2007-07-19 Ceramic Sciences, Inc. Self-ligating orthodontic bracket with mid-undercut
US20070243497A1 (en) * 2006-04-18 2007-10-18 Ceramic Sciences Incorporated Orthodontic bracket assembly
US20070269767A1 (en) * 2006-05-05 2007-11-22 Winfried Schuetz Adjustment screw for orthodontic adjustment devices
US20090004619A1 (en) * 2007-06-28 2009-01-01 Ormco Corporation Self-ligating orthodontic bracket and devices for deploying same
US20090155734A1 (en) * 2006-04-19 2009-06-18 Damon Dwight H Orthodontic bracket
US20100178629A1 (en) * 2007-06-28 2010-07-15 Ormco Corporation Self-ligating orthodontic bracket and devices for deploying same
US20100196838A1 (en) * 2006-04-19 2010-08-05 Ormco Corporation Orthodontic bracket
US7828549B1 (en) 2007-10-31 2010-11-09 Wios, Llc Lingual self-ligating orthodontic bracket, and methods for making and using the same
US20180104030A1 (en) * 2015-04-07 2018-04-19 Marco BARDELLI A method for the production of a prosthetic article
US11382721B2 (en) * 2014-08-22 2022-07-12 Align Technology, Inc. Attachment structure

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5378699A (en) * 1976-12-23 1978-07-12 Kinya Fujita Dental corrector
DE2701716C3 (de) * 1977-01-17 1981-08-13 Bernhard Förster GmbH, 7530 Pforzheim Spannvorrichtung für kieferorthopädische Drahtbogen
GR930100254A (el) * 1992-07-23 1994-03-31 Erwin C Pletcher Oρ?οδοντικό υποστήριγμα.
JP2013121367A (ja) * 2010-03-23 2013-06-20 Dentsply Sankin Kk 歯列矯正用ブラケット構成体とその移動方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578744A (en) * 1969-09-12 1971-05-18 Alexo Corp Method and apparatus for orthodontic treatment

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3578744A (en) * 1969-09-12 1971-05-18 Alexo Corp Method and apparatus for orthodontic treatment

Cited By (41)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3959880A (en) * 1974-08-14 1976-06-01 Andrews Lawrence F Spring-stressed orthodontic bracket
US4443189A (en) * 1982-10-15 1984-04-17 Wildman Alexander J Multi-purpose orthodontic bracket
US5018259A (en) * 1988-09-21 1991-05-28 Wildman Alexander J Method of design and manufacture of laminated orthodontic brackets
US5516284A (en) * 1988-09-26 1996-05-14 Wildman; Alexander J. Lingual orthodontic bracket with hinged closure
US5474444A (en) * 1988-09-26 1995-12-12 Wildman; Alexander J. Multiwire arch system
US5094614A (en) * 1991-03-08 1992-03-10 Wildman Alexander J Miniature self-locking labial bracket
US5791897A (en) * 1992-02-26 1998-08-11 Wildman; Alexander J. Multiwire arch system with improved interarch connector
US5322435A (en) * 1992-07-23 1994-06-21 Pletcher Erwin Carroll Orthodontic bracket
US5356288A (en) * 1992-12-07 1994-10-18 Howard Cohen Dual orthodontic bracket
US5630715A (en) * 1993-01-21 1997-05-20 Voudouris; John C. Orthodontic bracket with an engagement mechanism for retaining an archwire
US5511976A (en) * 1993-09-14 1996-04-30 Wildman; Alexander J. Lingual bracket with hinged camming closure
US6257883B1 (en) 1994-03-07 2001-07-10 John C. Voudouris Orthodontic bracket
US20060269895A1 (en) * 1994-03-07 2006-11-30 Voudouris John C Orthodontic bracket
WO1996039093A1 (en) 1995-06-05 1996-12-12 Wildman Alexander J Lingual bracket with hinged camming closure and releasable lock
US5700145A (en) * 1995-06-05 1997-12-23 Wildman; Alexander J. Lingual bracket with hinged camming closure and releasable lock
US5863199A (en) * 1995-06-05 1999-01-26 Wildman; Alexander J. Lingual bracket with hinged camming closure and locking ears
WO1997014370A1 (en) * 1995-10-17 1997-04-24 Goldschmied Pty. Ltd. Orthodontic appliance
US6139317A (en) * 1995-10-17 2000-10-31 Goldschmied Proprietary Ltd. Orthodontic appliance
US6247923B1 (en) 2000-05-24 2001-06-19 Nikhil Shankarlal Vashi Self-locking orthodontic bracket
US20050255422A1 (en) * 2004-05-11 2005-11-17 Cordato Mark A Orthodontic bracket and clip
US7033170B2 (en) 2004-05-11 2006-04-25 Mark Andrew Cordato Orthodontic bracket and clip
US20070166658A1 (en) * 2006-01-13 2007-07-19 Ceramic Sciences, Inc. Self-ligating orthodontic bracket with mid-undercut
US20070243497A1 (en) * 2006-04-18 2007-10-18 Ceramic Sciences Incorporated Orthodontic bracket assembly
US10159544B2 (en) 2006-04-19 2018-12-25 Ormco Corporation Orthodontic bracket
US11166790B2 (en) 2006-04-19 2021-11-09 Ormco Corporation Orthodontic bracket
US20090155734A1 (en) * 2006-04-19 2009-06-18 Damon Dwight H Orthodontic bracket
US9744004B2 (en) 2006-04-19 2017-08-29 Ormco Corporation Orthodontic bracket
US20100196838A1 (en) * 2006-04-19 2010-08-05 Ormco Corporation Orthodontic bracket
US9895207B2 (en) 2006-04-19 2018-02-20 Ormco Corporation Orthodontic bracket
US9867680B2 (en) 2006-04-19 2018-01-16 Ormco Corporation Orthodontic bracket
US9277973B2 (en) 2006-04-19 2016-03-08 Ormco Corporation Orthodontic bracket
US20070269767A1 (en) * 2006-05-05 2007-11-22 Winfried Schuetz Adjustment screw for orthodontic adjustment devices
US8033824B2 (en) 2007-06-28 2011-10-11 Ormco Corporation Self-ligating orthodontic bracket and devices for deploying same
US8469704B2 (en) 2007-06-28 2013-06-25 Ormco Corporation Self-ligating orthodontic bracket and devices for deploying same
US20100178629A1 (en) * 2007-06-28 2010-07-15 Ormco Corporation Self-ligating orthodontic bracket and devices for deploying same
US20090004619A1 (en) * 2007-06-28 2009-01-01 Ormco Corporation Self-ligating orthodontic bracket and devices for deploying same
US7828549B1 (en) 2007-10-31 2010-11-09 Wios, Llc Lingual self-ligating orthodontic bracket, and methods for making and using the same
US11382721B2 (en) * 2014-08-22 2022-07-12 Align Technology, Inc. Attachment structure
US20220338959A1 (en) * 2014-08-22 2022-10-27 Align Technology, Inc. Attachment structure
US11744678B2 (en) * 2014-08-22 2023-09-05 Align Technology, Inc. Attachment structure
US20180104030A1 (en) * 2015-04-07 2018-04-19 Marco BARDELLI A method for the production of a prosthetic article

Also Published As

Publication number Publication date
DE2252876C3 (de) 1981-12-24
DE2252876A1 (de) 1973-09-06
JPS4948186A (de) 1974-05-10
DE2252876B2 (de) 1981-04-30
FR2174023A1 (de) 1973-10-12
FR2174023B1 (de) 1976-03-05

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Legal Events

Date Code Title Description
AS Assignment

Owner name: SYBRON CORPORATION, 1100 MIDTOWN TOWER, ROCHESTER,

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST.;ASSIGNOR:AMERICAN HOSPITAL SUPPLY CORPORATION A CORP. OF ILL.;REEL/FRAME:004051/0902

Effective date: 19820831

AS Assignment

Owner name: ORMCO CORPORATION, A CORP. OF DE., STATELESS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:SYBRON CORPORATION;REEL/FRAME:004607/0103

Effective date: 19860731

Owner name: ORMCO CORPORATION, A CORP. OF DE.

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Effective date: 19860731

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Owner name: MANUFACTURERS HANOVER TRUST COMPANY,STATELESS

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SAC/THERMOLYNE, INC.;SAC/BARNSTEAD, INC.;SAC/THERMO-BARN, INC.;AND OTHERS;REEL/FRAME:004834/0513

Effective date: 19871020

Owner name: MANUFACTURERS HANOVER TRUST COMPANY

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Effective date: 19871020