US3922787A - Plastic orthodontic bracket - Google Patents

Plastic orthodontic bracket Download PDF

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Publication number
US3922787A
US3922787A US467675A US46767574A US3922787A US 3922787 A US3922787 A US 3922787A US 467675 A US467675 A US 467675A US 46767574 A US46767574 A US 46767574A US 3922787 A US3922787 A US 3922787A
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US
United States
Prior art keywords
bracket
ligature
undercut
front surface
tooth
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
US467675A
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English (en)
Inventor
Kenneth J Fischer
Jan A Orlowski
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Individual
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Individual
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 Individual filed Critical Individual
Priority to US467675A priority Critical patent/US3922787A/en
Priority to GB14506/75A priority patent/GB1506772A/en
Priority to ZA00752627A priority patent/ZA752627B/xx
Priority to AU80479/75A priority patent/AU494226B2/en
Priority to CH560975A priority patent/CH603146A5/xx
Priority to CA226,217A priority patent/CA1043595A/en
Priority to DE19752520191 priority patent/DE2520191A1/de
Priority to FR7514081A priority patent/FR2269916B1/fr
Priority to JP50054171A priority patent/JPS5223513B2/ja
Application granted granted Critical
Publication of US3922787A publication Critical patent/US3922787A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

  • An all plastic orthodontic bracket is disclosed which is adapted to be attached directly to the labial surface of a tooth.
  • the bracket has a quasi triangular shaped body as viewed from the facial view to minimize forces being applied to the bracket during mastication and occlusion.
  • the apical section of the triangular shaped body is adapted to be attached to the incisal section of the tooth and the base of the triangular shaped body is adapted to be attached to the gingival section of the tooth.
  • All surfaces of the bracket body extending from a ligature undercut over the front surface of the bracket body are smooth and convex with the exception of those surfaces defined by an archwire slot and a second slot which is perpendicular to the archwire slot. Smooth convex bracket body surfaces substantially lessen plastic fatigue commonly found in prior art plastic orthodontic brackets having sharp corners.
  • the ligature undercut is of a depth which is substantially filled by a small gauge archwire or an elastic ring. The relatively shallow depth of the ligature undercut insures that maximum bracket bulk is distributed between the archwire slot and the ligature undercut to lessen the tendency for bracket body fatigue between these points.
  • the invention relates to plastic orthodontic brackets of the type which are adapted to be directly cemented to the labial surface of a tooth. More particularly, the invention is directed to the shape of the bracket body which lessens the tendency of plastic fatigue found in prior art plastic brackets.
  • None of the aforementioned patents embodies a plastic orthodontic bracket which is concerned with eliminating bracket breakage or distortion by utilizing a quasi triangular shaped bracket body, more effective material bulk distribution between the archwire slot and a ligature undercut by lessening the depth of the ligature undercut and the use of a smooth convex shape of the bracket body which eliminates sharp angles except in the archwire slot and in a vertical slot disposed perpendicular to the archwire slot which is used for applying mesio-distal rotational forces to the tooth to which the bracket is attached.
  • the present invention represents a substantial improvement in minimizing the aforementioned drawbacks by utilizing a design which incorporates the inherent structural properties of plastic as the criteria for shaping the bracket instead of the structural properties of metal.
  • One aspect of the present invention is the quasi triangular shape of the bracket body as seen from the facial view.
  • the bracket base is attached to the labial surface of a tooth
  • the narrower apical section is oriented closest to the incisal section while the wider base portion of the triangular bracket body is oriented closest to the gingival section.
  • the quasi triangular shape of the bracket functions to minimize the forces applied to the bracket during mastication and occlusion by minimizing the surface area of the bracket which contacts food or other teeth when the jaws are about to close during mastication or occlusion.
  • Another aspect of the invention is the provision of a relatively shallow'ligature undercut which extends at least partially around the periphery of the side of the bracket body.
  • the ligature undercut is substantially filed when a small gauge ligature wire or elastic ring is disposed therein.
  • the preferred depth is approximately 0.030-0.035 inch.
  • the use of the shallow ligature undercut insures that the maximum amount of bulk bracket material is located between the ligature undercut and an archwire slot cut in the front surface of the bracket body to lessen the chance of plastic fatigue.
  • the base of the bracket extends away from the ligature undercut a distance sufficient to prevent the adhesive used for attaching the back surface of base portion of the bracket to the labial surface of the tooth from occluding the ligature undercut.
  • a final aspect of the invention is that all surfaces on the bracket body as defined from the ligature undercut extending to the archwire slot and to a slot disposed perpendicular to the archwire slot which is used for rotating the teeth mesio-distally are smooth and convex to lessen internal stress in the bracket body which is caused by surfaces meeting in sharp corners.
  • FIG. I is a perspective view of a prior art plastic orthodontic bracket
  • FIG. II is a front view of a plastic orthodontic bracket constructed according to the invention.
  • FIG. III is a side view of a plastic orthodontic bracket constructed according to the invention.
  • FIG. IV is a top view of a plastic orthodontic bracket constructed according to the invention.
  • FIG. 1 a typical prior art plastic orthodontic bracket 10 is shown therein.
  • the bracket 10 is comprised of a base 12 and a body 14.
  • Archwire slot 16 is cut horizontally through the center of the bracket.
  • the upper and lower surfaces 18 and 20 are of equal width.
  • the bracket 10 may either be cemented to a metal band which encircles a tooth to provide a strong bond therewith or cemented directly to a tooth.
  • the top and bottom surfaces 18 and 20 of bracket 10 each have a substantial surface area which is contacted by food or other teeth during mastication and occlusion.
  • a ligature undercut 22 is provided partially around the periphery of the bracket body 14. Ligature undercut 22 is cut so deep that a small gauge ligatu re wire or adhesive band would not substantially fill the ligature undercut 22.
  • the deep ligature design concept substantially lessens the material bulk distribution between archwire slot 16 and ligature undercut 22 with the attendant likelihood of an increase in stress fatigue between these points.
  • Reference numerals 24, 26 and 28 identify sharp edges defined by the meeting of relatively flat surfaces. Each of these sharp edges represents an internal stress point of the plastic bracket which may fatigue under continued stress.
  • Bracket 10 has a horizontally dis- 4 of the bracket body is positioned closest to the incisal edge of a tooth to which the bracket base is attached. This configuration minimizes the forcesapplied to the bracket body during mastication and occlusion. While posed archwire slot 30 cut in the front surface of the 5 many types of dental adhesives may be used to cement bracket body 32.
  • the rear surface of base 34 of bracket the bracket directly to a tooth the preferred type of adis concavely contoured mesio-distally and gingivohesive is disclosed in United States patent application incisally to conform to the labial contour of the tooth to Ser. No. 386,416 filed Aug. 7, 1973. which the bracket is adapted to be attached.
  • the base The preferred type of plastic used in constructing the contour of brackets which are used on different types 10 bracket is chosen from the polycarbonate family. It has of teeth are chosen to conform to the different labial the following physical properties: If a filled polycarboncontours of those teeth to which the bracket is to be atate is chosen, the shear strength should range from tached.
  • the preferred bracket shape is quasi triangular 10,000 to 16,000 p.s.i.
  • Deformation at 70F under a with top section 36 comprising the base of a triangle 4000 psi load is less than 0.1%. If an unfilled polycarwhile bottom section 38 forms the apical section of a bonate is chosen, the shear strength should range from triangle. However, other tapered geometrical shapes 6000 to 8500 psi. Deformation at 70F under a 4000 could also be used.
  • Vertical slot 40 is provided to allow psi load is from 0.1 to 0.3%. an archwire to be tied in utilizing a mesial or distal rota- It should be understood that the foregoing disclosure tional force.
  • Ligature undercut 42 is purposely and that it is intended to cover all changes and modificut shallow enough to be substantially filled by a small cations which do not constitute departures from the gauge ligature wire or elastic ring.
  • the depth spirit and scope of the invention. of ligature undercut 42 is approximately 0.035 inch or What is claimed is: less.
  • This shallow undercut provides maximum material 1.
  • a plastic orthodontic bracket comprising a base bulk between the ligature undercut 42 and archwire which is adapted to be attached to the labial surface of slot to lessen the chance of plastic fatigue between a tooth between the gingival and the incisal sections these points.
  • the ligature undercut 42 is smooth and and a body which is joined to said base, said body havconcave in shape. Extending from ligature undercut 42 ing a quasi-triangular shaped front surface, an archwire over the front surface of the bracket body 32, all surslot cut in the front surface of said body, a ligature unfaces are smooth and convex except the archwire and 30 dercut extending completely around the periphery of vertical slots 30 and 40 to lessen internal stress which the front surface of said body, and a smooth and connormally occurs in plastic brackets which have sharp vex surface extending from said ligature undercut to comers.
  • the base 34 of the bracket 10 is extended, as said archwire slot.
  • undercut 42 a distance sufficient to prevent the adhe- 35 wherein said plastic is a filled polycarbonate having the sive used for attaching the back surface of the base 34 following physical properties: to the labial surface of the tooth from occluding the ligshear strength ranging from 10,000 to 16,000 p.s.i. ature undercut 42.
  • the lip section 46 of the bracket and deformation at 70F under a 4,000 p.s.i. load body 32 located next to the ligature undercut 42 is rebeing less than 0.1%. lieved incisally and gingivally to the archwire to facili- 3.
  • archwire slot 30 is not perpendicular to the plane of the shear strength ranging from 6,000 to 8,500 p.s.i. and base 34.
  • the archwire slot forms an acute angle which deformation at 70F under 4,000 p.s.i. load being is measured between a perpendicular line from the base 45 from 0.1% to 0.3%. of the archwire slot and the base of the bracket which 4.
  • a plastic orthodontic bracket as recited in claim 1 is parallel to the labial surface of the tooth.
  • This acute further comprising means cut in the front surface of angulation produces a built in torque in the bracket said bracket body for use in applying mesial or dital rowhich requires less torque to be placed in the archwire. tational forces to a tooth to which the bracket is at- This configuration produces less destructive wear of tached. the plastic material where it is in contact with the sharp 5.
  • said means comprises a slot cut in the front
  • the following table gives the preferred bracket disurface of said bracket body, said slot being perpendicmensions and angulations which are to be used with difular to said archwire slot. ferent types of teeth. 6.
  • base 34 is cemented to the labial surface of the tooth so that the narrow apex section 38 wherein said ligature undercut is smooth and concave and has a maximum depth of 0.0l5mm or less.
  • a plastic orthodontic bracket comprising a base portion which is adapted to be attached to the labial surface of a tooth between the gingival and incisal sections and a body which is joined to said base, said body having a front surface which is quasi-triangular shaped for minimizing the forces exerted on said bracket during mastication and occlusion when said bracket is attached to said tooth so that the apex of said quasi-triangular shaped front surface is positioned closest to the incisal section of a tooth and the base of said quasitriangular shaped front surface is positioned closest to the gingival section of the tooth.
  • an orthodontic bracket as recited in claim 7 further comprising an archwire slot cut in the front surface of said bracket body and a ligature undercut extending completely around the periphery of said front surface, said ligature undercut being smooth and concave and having a depth of 0.0l5mm or less.
  • bracket body further comprises an archwire slot, means cut in the front surface of said bracket body for use in applying mesial or distal rotational forces to a tooth to which the bracket is attached, said slot being cut into the front surface of said bracket body, and a ligature undercut extending completely around the periphery of said bracket body, and a smooth and convex surface extending from said ligature undercut to said archwire slot.
  • said means comprises a slot cut in the front surface of said bracket body, said slot being perpendicular to said archwire slot.
  • shear strength ranging from 10,000 to 16,000 p.s.i.

Landscapes

  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
US467675A 1974-05-07 1974-05-07 Plastic orthodontic bracket Expired - Lifetime US3922787A (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
US467675A US3922787A (en) 1974-05-07 1974-05-07 Plastic orthodontic bracket
GB14506/75A GB1506772A (en) 1974-05-07 1975-04-09 Plastics orthodontic bracket
AU80479/75A AU494226B2 (en) 1975-04-23 Plastic orthodontic bracket
ZA00752627A ZA752627B (en) 1974-05-07 1975-04-23 Plastic orthodontic bracket
CH560975A CH603146A5 (da) 1974-05-07 1975-05-01
CA226,217A CA1043595A (en) 1974-05-07 1975-05-05 Plastic orthodontic bracket
DE19752520191 DE2520191A1 (de) 1974-05-07 1975-05-06 Traeger aus kunststoff fuer eine zahnregulierungsvorrichtung
FR7514081A FR2269916B1 (da) 1974-05-07 1975-05-06
JP50054171A JPS5223513B2 (da) 1974-05-07 1975-05-06

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US467675A US3922787A (en) 1974-05-07 1974-05-07 Plastic orthodontic bracket

Publications (1)

Publication Number Publication Date
US3922787A true US3922787A (en) 1975-12-02

Family

ID=23856668

Family Applications (1)

Application Number Title Priority Date Filing Date
US467675A Expired - Lifetime US3922787A (en) 1974-05-07 1974-05-07 Plastic orthodontic bracket

Country Status (8)

Country Link
US (1) US3922787A (da)
JP (1) JPS5223513B2 (da)
CA (1) CA1043595A (da)
CH (1) CH603146A5 (da)
DE (1) DE2520191A1 (da)
FR (1) FR2269916B1 (da)
GB (1) GB1506772A (da)
ZA (1) ZA752627B (da)

Cited By (48)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167813A (en) * 1976-05-20 1979-09-18 Bernhard Forster Dental fixing element
US4198753A (en) * 1977-03-26 1980-04-22 Firma Bernhard Forster Dental fixing element
US4216583A (en) * 1978-08-03 1980-08-12 Zulauf Inc. Orthodontic appliance
US4322206A (en) * 1978-08-03 1982-03-30 Zulauf Inc. Orthodontic appliance
US4337037A (en) * 1980-02-11 1982-06-29 Kurz Craven H Fixed lingual orthodontic appliance for the maxillary arch
US4386908A (en) * 1976-11-15 1983-06-07 Kurz Craven H Lingual orthodontic appliance system for the mandibular arch
US4470809A (en) * 1983-06-06 1984-09-11 Klepacki Frank H Orthodontic appliance
US4597739A (en) * 1985-05-21 1986-07-01 Farel Rosenberg Tow element bracket system for true straight wire orthodontics
US4669981A (en) * 1982-09-20 1987-06-02 Kurz Craven H Lingual orthodontic appliance system
US4674978A (en) * 1986-06-04 1987-06-23 Raul Acevedo Orthodontic appliance
US4819316A (en) * 1987-07-29 1989-04-11 Rmo, Inc. Method of making a pre-adjusted orthodontic bracket assembly
US4878840A (en) * 1978-08-03 1989-11-07 Zulauf, Inc. Orthodontic appliance
US5018259A (en) * 1988-09-21 1991-05-28 Wildman Alexander J Method of design and manufacture of laminated orthodontic brackets
US5032080A (en) * 1989-04-12 1991-07-16 Scandinavian Bioortodontic Ab Orthodontic appliance bracket and arch
EP0453689A1 (en) * 1990-04-24 1991-10-30 American Orthodontics Corporation Twin tie wing bracket
DE4118248A1 (de) * 1991-06-04 1992-12-10 Foerster Bernhard Gmbh Kieferorthopaedische vorrichtung
US5254002A (en) * 1991-04-08 1993-10-19 Ormco Corporation Orthodontic plastic bracket
US5299934A (en) * 1989-12-05 1994-04-05 Jobert Suzanne Teeth straightening bracket
US5302116A (en) * 1992-03-20 1994-04-12 Viazis Anthony D Orthodontic bracket
WO1995031150A1 (en) * 1994-05-11 1995-11-23 Mors Wayne A Orthodontic bracket and system
EP0706785A1 (en) 1994-10-14 1996-04-17 Minnesota Mining And Manufacturing Company Pretreated plastic dental appliances and methods
US5575644A (en) * 1993-03-11 1996-11-19 American Orthodontics Orthodontic appliance
US5595484A (en) * 1994-04-13 1997-01-21 Gac International, Inc. Orthodontic bracket
US5597302A (en) * 1994-10-14 1997-01-28 Minnesota Mining And Manufacturing Company Aesthetic plastic orthodontic bracket with load bearing framework
US5607301A (en) * 1994-11-01 1997-03-04 Lancer Orthodontics Orthodontic bracket and method of mounting
US5746592A (en) * 1996-09-05 1998-05-05 Rmo, Inc. Edgewise orthodontic bracket with tie wing relief for enhancing ligature removal
US5769634A (en) * 1997-06-02 1998-06-23 Choi; John Dental articulator
US5813852A (en) * 1995-02-17 1998-09-29 Gac International, Inc. Orthodontic bracket
US5908293A (en) * 1994-03-07 1999-06-01 Voudouris; John C. Orthodontic bracket
US6361314B1 (en) * 2000-04-28 2002-03-26 American Orthodontics Orthodontic bracket
ES2174735A1 (es) * 2000-11-30 2002-11-01 Von Arx Jose Duran Dispositivo de correccion para ortodoncia.
US6733285B2 (en) * 2001-12-14 2004-05-11 3M Innovative Properties Company Orthodontic appliance with lingual retaining groove
DE10300010A1 (de) * 2003-01-02 2004-07-22 Fricke, Clemens, Dr. Brackets
US6799966B1 (en) 1999-03-04 2004-10-05 3M Innovative Properties Company Fluoropolymeric orthodontic article
US20050003321A1 (en) * 2002-02-13 2005-01-06 Dirk Wiechmann Modular system for customized orthodontic appliances
US20050005554A1 (en) * 2003-07-10 2005-01-13 Oppermanm R. Scott Equipment support for a metal building
US20050170308A1 (en) * 2004-02-03 2005-08-04 3M Innovative Properties Company Orthodontic bracket with reinforced tiewings
US20060008761A1 (en) * 2004-07-12 2006-01-12 Allred Peter M Dental appliances having separate performance and bonding regions
US20070134612A1 (en) * 2005-12-09 2007-06-14 Bernard Contencin Dento-facial orthopedic treatment and orthodontic arch wire for implementing the same
US20070178423A1 (en) * 2006-01-27 2007-08-02 Lingualcare, Inc. System to manufacture custom orthodontic appliances, program product, and related methods
US7661281B2 (en) 2004-11-22 2010-02-16 3M Innovative Properties Company Method and device for shaping an orthodontic archwire
USRE42815E1 (en) 2002-11-06 2011-10-11 3M Innovative Properties Company Method and system for customizing an orthodontic archwire
USD660435S1 (en) 2011-05-13 2012-05-22 Rmo, Inc. Orthodontic bracket
USD660436S1 (en) 2011-05-13 2012-05-22 Rmo, Inc. Orthodontic bracket
USD660968S1 (en) 2011-05-13 2012-05-29 Rmo, Inc. Orthodontic bracket
USD721811S1 (en) 2013-10-29 2015-01-27 Rmo, Inc. Orthodontic bracket
USD726318S1 (en) 2013-01-17 2015-04-07 Rmo, Inc. Dental instrument for a self-ligating orthodontic clip
US11564778B2 (en) * 2018-03-07 2023-01-31 TH!NK Innovations, LLC Orthodontic elastic attachments for use with dental aligners

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2537866A1 (fr) * 1982-12-16 1984-06-22 Frindel Francois Attachement orthodontique monobloc ou monoattache
JPS60124907U (ja) * 1984-02-02 1985-08-23 根津　浩 歯列矯正用ブラケツト
US4799882A (en) * 1987-11-17 1989-01-24 Tp Orthodontics, Inc. Edgewise bracket
US5022854A (en) * 1988-12-16 1991-06-11 Ortho Organizers Orthodontic bracket

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1467789A (en) * 1922-09-20 1923-09-11 Edward M Griffin Orthodontist's locking device
US2368851A (en) * 1943-04-24 1945-02-06 Jacob E Laskin Orthodontic bracket
US3303565A (en) * 1964-04-09 1967-02-14 George V Newman Orthodontic brackets
US3423833A (en) * 1967-08-15 1969-01-28 Lawrence Pearlman Adjustable orthodontic device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2022730A1 (de) * 1969-06-05 1970-12-10 Ortho Internat Services Inc Schloss fuer orthodontische Zwecke vom Typ Edgewise Bracket

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1467789A (en) * 1922-09-20 1923-09-11 Edward M Griffin Orthodontist's locking device
US2368851A (en) * 1943-04-24 1945-02-06 Jacob E Laskin Orthodontic bracket
US3303565A (en) * 1964-04-09 1967-02-14 George V Newman Orthodontic brackets
US3423833A (en) * 1967-08-15 1969-01-28 Lawrence Pearlman Adjustable orthodontic device

Cited By (63)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4167813A (en) * 1976-05-20 1979-09-18 Bernhard Forster Dental fixing element
US4386908A (en) * 1976-11-15 1983-06-07 Kurz Craven H Lingual orthodontic appliance system for the mandibular arch
US4198753A (en) * 1977-03-26 1980-04-22 Firma Bernhard Forster Dental fixing element
US4878840A (en) * 1978-08-03 1989-11-07 Zulauf, Inc. Orthodontic appliance
US4216583A (en) * 1978-08-03 1980-08-12 Zulauf Inc. Orthodontic appliance
US4322206A (en) * 1978-08-03 1982-03-30 Zulauf Inc. Orthodontic appliance
US4337037A (en) * 1980-02-11 1982-06-29 Kurz Craven H Fixed lingual orthodontic appliance for the maxillary arch
US4669981A (en) * 1982-09-20 1987-06-02 Kurz Craven H Lingual orthodontic appliance system
EP0128474A1 (en) * 1983-06-06 1984-12-19 Frank H. Klepacki Orthodontic appliance
US4470809A (en) * 1983-06-06 1984-09-11 Klepacki Frank H Orthodontic appliance
US4597739A (en) * 1985-05-21 1986-07-01 Farel Rosenberg Tow element bracket system for true straight wire orthodontics
US4674978A (en) * 1986-06-04 1987-06-23 Raul Acevedo Orthodontic appliance
US4819316A (en) * 1987-07-29 1989-04-11 Rmo, Inc. Method of making a pre-adjusted orthodontic bracket assembly
US5018259A (en) * 1988-09-21 1991-05-28 Wildman Alexander J Method of design and manufacture of laminated orthodontic brackets
US5032080A (en) * 1989-04-12 1991-07-16 Scandinavian Bioortodontic Ab Orthodontic appliance bracket and arch
US5299934A (en) * 1989-12-05 1994-04-05 Jobert Suzanne Teeth straightening bracket
US5067897A (en) * 1990-04-24 1991-11-26 American Orthodontics Corporation Twin tie wing bracket
EP0453689A1 (en) * 1990-04-24 1991-10-30 American Orthodontics Corporation Twin tie wing bracket
US5254002A (en) * 1991-04-08 1993-10-19 Ormco Corporation Orthodontic plastic bracket
DE4118248C2 (de) * 1991-06-04 1998-09-24 Foerster Bernhard Gmbh Kieferorthopädische Vorrichtung
DE4118248A1 (de) * 1991-06-04 1992-12-10 Foerster Bernhard Gmbh Kieferorthopaedische vorrichtung
US5302116A (en) * 1992-03-20 1994-04-12 Viazis Anthony D Orthodontic bracket
US5575644A (en) * 1993-03-11 1996-11-19 American Orthodontics Orthodontic appliance
US5908293A (en) * 1994-03-07 1999-06-01 Voudouris; John C. Orthodontic bracket
US5692898A (en) * 1994-04-13 1997-12-02 Gac International, Inc. Orthodontic bracket
US5595484A (en) * 1994-04-13 1997-01-21 Gac International, Inc. Orthodontic bracket
US5618174A (en) * 1994-05-11 1997-04-08 Mors; Wayne A. Orthodontic bracket and system
WO1995031150A1 (en) * 1994-05-11 1995-11-23 Mors Wayne A Orthodontic bracket and system
US5597302A (en) * 1994-10-14 1997-01-28 Minnesota Mining And Manufacturing Company Aesthetic plastic orthodontic bracket with load bearing framework
US5558516A (en) * 1994-10-14 1996-09-24 Minnesota Mining And Manufacturing Company Pretreated plastic dental appliances and methods
EP0706785A1 (en) 1994-10-14 1996-04-17 Minnesota Mining And Manufacturing Company Pretreated plastic dental appliances and methods
US5607301A (en) * 1994-11-01 1997-03-04 Lancer Orthodontics Orthodontic bracket and method of mounting
US5813852A (en) * 1995-02-17 1998-09-29 Gac International, Inc. Orthodontic bracket
US5746592A (en) * 1996-09-05 1998-05-05 Rmo, Inc. Edgewise orthodontic bracket with tie wing relief for enhancing ligature removal
US5769634A (en) * 1997-06-02 1998-06-23 Choi; John Dental articulator
US6799966B1 (en) 1999-03-04 2004-10-05 3M Innovative Properties Company Fluoropolymeric orthodontic article
US6361314B1 (en) * 2000-04-28 2002-03-26 American Orthodontics Orthodontic bracket
ES2174735A1 (es) * 2000-11-30 2002-11-01 Von Arx Jose Duran Dispositivo de correccion para ortodoncia.
US6733285B2 (en) * 2001-12-14 2004-05-11 3M Innovative Properties Company Orthodontic appliance with lingual retaining groove
US20050003321A1 (en) * 2002-02-13 2005-01-06 Dirk Wiechmann Modular system for customized orthodontic appliances
US7811087B2 (en) * 2002-02-13 2010-10-12 3M Innovative Properties Company Modular system for customized orthodontic appliances
US20050158686A1 (en) * 2002-02-13 2005-07-21 Dirk Wiechmann Modular system for customized orthodontic appliances
US10136965B2 (en) 2002-02-13 2018-11-27 3M Innovative Properties Company Customized orthodontic bracket system
US8057226B2 (en) 2002-02-13 2011-11-15 3M Innovative Properties Company Customized orthodontic bracket system
US7850451B2 (en) 2002-02-13 2010-12-14 3M Innovative Properties Company Modular system for customized orthodontic appliances
USRE44668E1 (en) 2002-11-06 2013-12-24 3M Innovative Properties Company Method and system for customizing an orthodontic archwire
USRE42815E1 (en) 2002-11-06 2011-10-11 3M Innovative Properties Company Method and system for customizing an orthodontic archwire
DE10300010A1 (de) * 2003-01-02 2004-07-22 Fricke, Clemens, Dr. Brackets
DE10300010B4 (de) * 2003-01-02 2007-08-09 Fricke, Clemens, Dr. Brackets sowie ein Verfahren zu ihrer Herstellung
US20050005554A1 (en) * 2003-07-10 2005-01-13 Oppermanm R. Scott Equipment support for a metal building
US7140875B2 (en) * 2004-02-03 2006-11-28 3M Innovative Properties Company Orthodontic bracket with reinforced tiewings
US20050170308A1 (en) * 2004-02-03 2005-08-04 3M Innovative Properties Company Orthodontic bracket with reinforced tiewings
US20060008761A1 (en) * 2004-07-12 2006-01-12 Allred Peter M Dental appliances having separate performance and bonding regions
US7661281B2 (en) 2004-11-22 2010-02-16 3M Innovative Properties Company Method and device for shaping an orthodontic archwire
US20070134612A1 (en) * 2005-12-09 2007-06-14 Bernard Contencin Dento-facial orthopedic treatment and orthodontic arch wire for implementing the same
US20070178423A1 (en) * 2006-01-27 2007-08-02 Lingualcare, Inc. System to manufacture custom orthodontic appliances, program product, and related methods
US7751925B2 (en) 2006-01-27 2010-07-06 3M Innovative Properties Company System to manufacture custom orthodontic appliances, program product, and related methods
USD660436S1 (en) 2011-05-13 2012-05-22 Rmo, Inc. Orthodontic bracket
USD660968S1 (en) 2011-05-13 2012-05-29 Rmo, Inc. Orthodontic bracket
USD660435S1 (en) 2011-05-13 2012-05-22 Rmo, Inc. Orthodontic bracket
USD726318S1 (en) 2013-01-17 2015-04-07 Rmo, Inc. Dental instrument for a self-ligating orthodontic clip
USD721811S1 (en) 2013-10-29 2015-01-27 Rmo, Inc. Orthodontic bracket
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Also Published As

Publication number Publication date
JPS5223513B2 (da) 1977-06-24
CA1043595A (en) 1978-12-05
CH603146A5 (da) 1978-08-15
GB1506772A (en) 1978-04-12
FR2269916B1 (da) 1982-04-09
ZA752627B (en) 1976-03-31
FR2269916A1 (da) 1975-12-05
JPS515895A (da) 1976-01-19
AU8047975A (en) 1976-10-28
DE2520191A1 (de) 1975-11-27

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