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WO2009098714A2 - Système de brackets orthodontiques auto-ligaturants sans ailettes du type edgewise - Google Patents

Système de brackets orthodontiques auto-ligaturants sans ailettes du type edgewise Download PDF

Info

Publication number
WO2009098714A2
WO2009098714A2 PCT/IN2009/000036 IN2009000036W WO2009098714A2 WO 2009098714 A2 WO2009098714 A2 WO 2009098714A2 IN 2009000036 W IN2009000036 W IN 2009000036W WO 2009098714 A2 WO2009098714 A2 WO 2009098714A2
Authority
WO
WIPO (PCT)
Prior art keywords
bracket
brackets
ligation
lock
press
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.)
Ceased
Application number
PCT/IN2009/000036
Other languages
English (en)
Other versions
WO2009098714A3 (fr
Inventor
Mathew Benoy
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.)
Individual
Original Assignee
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
Publication of WO2009098714A2 publication Critical patent/WO2009098714A2/fr
Publication of WO2009098714A3 publication Critical patent/WO2009098714A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • A61C7/14—Brackets; Fixing brackets to teeth
    • 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
    • A61C7/28—Securing arch wire to bracket
    • A61C7/285—Locking by rotation
    • 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
    • A61C7/28—Securing arch wire to bracket
    • A61C7/287—Sliding locks

Definitions

  • the invention generally relates to Orthodontics and in particular to all Edge wise, Straight wire and all its modification and custom fabricated Brackets or tubes for orthodontic correction using virtual dental model and Cad Cam technology and Begg Brackets and tubes.
  • Orthodontic braces Brackets and tubes are bonded on all the teeth that are required for support or that need correction of irregularities.
  • An Alternative method is to weld Orthodontic brackets and tubes on Bands which are prefabricated according to the contour of the teeth or adapted to the contour of the teeth. These bands with the brackets and tubes welded on them are cemented to the teeth using Dental Luting Cements.
  • Orthodontic Brackets are used to deliver forces to various teeth in a scientific manner so that the teeth can be arranged for better appearance and function.
  • the Orthodontic brackets and tubes are bonded or Bands with welded Brackets and tubes are cemented to the teeth using various resins or luting cements. Forces are then applied using a wire that pass through the slots on.
  • These Brackets are tied securely to the brackets with the help of thin wire called Ligature wire or with the help of thin plastic rings called "Hg a rings". More recently the tie wings are used to engage the wire in the Bracket using various self ligating cover like designs.
  • the slots of theses brackets are at specific locations and do have pre planned alignments to the Bracket bases. The position and alignment of these slots define the various treatment prescriptions in orthodontics.
  • the arch wire is tied to the bracket taking advantage of the undercuts designs present in the Brackets called Tie wings.
  • the present Invention is an over all design variation where the tie wings are entirely avoided and the outer surface of the bracket is made smooth and polished.
  • the surface can also be made of different materials for the reasons of appearance.
  • the new invention does not have any thing to do with the location of the bracket slots. But the difference is in the overall design variation of the Bracket itself. That means any system of treatment is possible in this design variation.
  • the earlier Brackets were bulky and had wing like structures called Tie -wings "more like Thorns" for the purpose of putting ligature wire to keep the force applying wire in place.
  • the systems of treatment "referred” to includes any design variations in the slot position that is in practice today like Begg System with tubes or Edgewise systems with tubes or any of its modifications or The Begg & Straight wire (PEA) Combinations like Tip edge Systems with tubes or any Cad Cam system with tubes systems yet to develop.
  • Any bracket designs like twin brackets or mono brackets can be fabricated in the Edge wise Wingless Self Ligation Orthodontic Bracket System.
  • Any kind of bracket bases can be used in these systems.
  • Orthodontic Brackets of any system of treatment made of any material or virtual or with any Bracket base and any type of attachments like Brackets and tubes will be referred to as Brackets for the purpose of convenience.
  • the normal Edge Wise Bracket is a piece of metal with a surface either contoured to adhere to the tooth surface and a slot for the wire to pass.
  • the surface that adheres to the tooth is called the base of the Bracket.
  • the sides of the slots curve away from the slot and forms what is known as the tie wings.
  • the slot and the base are connected to each other by the bracket stem.
  • brackets 80 Almost all the designs were either winged but there were quit a few un- winged Brackets as well. But till now no bracket system that is round shaped and having a contour of Capital D to the apex of a Parabola are invented. These brackets come as fully fabricated and only need to be bonded on teeth no bracket base fabrication in the dental clinic is needed. The entire bracket can be manufactured in the factory.
  • the various line angles of our interest, seen from the facial surface of an anterior tooth are the Cervical Margin, The Incisal or Occlusal Margin, the Mesio- buccal, Disto-buccal line angles.
  • the various line angles of our interest, seen from the facial surface of a posterior tooth are the Cervical Margin, Occlusal Margin, the
  • the various point angles of our interest, seen from the facial surface of an anterior tooth are the Mesio-Cervical, the Disto-cervical, mesio incisal, and disto incisal point angles.
  • the various point angles of our interest, seen from the facial surface of a posterior tooth are the Mesio-Cervical, the Disto-cervical, mesio occlusal,
  • disto-occlusal point angles help us to determine each corner of a tooth and help us to define the appliance better in relation to the tooth.
  • Bracket is altered :
  • the tie wings are entirely avoided and the space occupied by the tie wings are either included in the 1 10 brackets itself or that part of the tie wing is that is not with in the limits of the bracket design is removed and the under cuts are blocked with any material with which the brackets is fabricated or with any other material.
  • the new invention is also an altered design of Orthodontic Bracket were all the under cuts in the design of the bracket were filled with the material of fabrication of the bracket or a different material. Thus 115 all the under cuts and food retention areas are eliminated.
  • the basic idea of bracket Ligation was to secure the force applying Arch wire to be in place. Thin wires called ligatures wires pass around the tie wings and keep the arch wire against the bracket Base. This will generate the necessary force to move the tooth to the desired position.
  • the arch wire locking is made effective by self ligation philosophy and a number of designs have been developed for the same.
  • the center of the face of the Bracket or the center of the parabola or Capital D has a slot for engaging the Arch wire. Since the Arch wire slot in the bracket is a part of the
  • bracket design does not show the slot specifically but the design shows the overall shape of the Bracket including the Slot.
  • the design can have any shape that progress from a Capital D Shape to a parabola as shown in the Figure 5
  • the basic design from the mesial or distal side is "a Capital D Shape to an apex of a parabola”.
  • the design also has all the parts of the normal Edge wise bracket namely Bracket Base, Bracket Slot, and Bracket stem except the Ligature tie
  • the Bracket is essentially a solid block of the material with which the Bracket is
  • the block has a horizontal slot in the middle of its face according to the Bracket prescription in mind of the manufacturer.
  • the base of the Bracket slot joins with the face of the Bracket Base by the Stem of the Bracket.
  • the Bracket has a latch to lock the arch wire in place it can be opened either incisally or occlusaly.
  • the inciso-facial or the occluso-facial edge of the Bracket is thoroughly rounded so that the surface resembles the surface of capital D or the apex of a parabola or any shape that happens in between these two shapes as shown in the Figure5.
  • the Mesial and distal incisal portions of the slot has a depression to allow the hinge of the latch.
  • FIG. 8 Facial view of Facial Press Ligation Brackets and Lock Opening incisally : The bracket on the Mesial side and the distal side except in the incisal area where the depression for the hinge is present and the gingival area is hollowed out into a concavity that allows the latch to occupy space.
  • the latch at the gingival part has a
  • Bracket is essentially a solid block of the material with which the Bracket is manufactured.
  • the block has a horizontal slot some where in the middle according to the Bracket
  • the bracket can also have a vertical slit that goes along with the Long axis of the Tooth to help bracket orientation.
  • the base of the Bracket slot joins with the face of the Bracket Base.
  • the Bracket has a latch to lock the arch wire in place it can be opened cervicaly. In a bracket with the latch opening gingival, the gingivo-facial aspect of the Bracket is thoroughly rounded to a
  • the Mesial and distal incisal portion of the slot has a depression to allow the hinge of the latch.
  • FIG. O Facial Press Ligation Brackets and Lock Opening cervicaly :
  • the latch at the gingival part has a lock that locks with the Bracket base.
  • the depression for the hinge of the latch is in the incisal 180 portion of the Mesial and distal surface of the Bracket.
  • the lock is at the gingival portion and the Mesial side and the distal side except in the incisal area where the depression for the hinge is present and the incisal / occlusal area are hollowed out into a concavity that allows the latch to occupy space.
  • FIG. 13 Vertical Slide Ligation Brackets.
  • Non sliding part The Bracket Base along with the stem forms a system that allows the vertical sliding jig to slide along the vertical axis.
  • the system has the female part that fits exactly with the Spring 200 loaded locking systems in the Vertical Sliding jig.
  • the cervical arch wire boundary of the bracket is fixed to this block.
  • the cervical arch wire boundary is that part of the earlier edge wise bracket that used to have the cervical tie wings. This part along with the bracket stem is bonded to the tooth surface by the bracket base and will not move during arch wire engagement.
  • FIG. 14 Vertical Slide Ligation Brackets. Assembled appearance ; The assembly in the figure shows the various parts of the vertical slide lock brackets in the assembled form.
  • FIG. 1 The press lock locking system used in Direct Press Ligation Brackets.
  • FIG. 1 Vertical Press Ligation Bracket showing the press locking system.
  • FIG. 20 Elastic Hook Ligation Bracket. Profile and Facial views : The bracket face is fixed with a hinged latch with a spring loaded lock at the locking end. The 235 elastic hook is fixed on to the spring hook and pressing the hook disengages the latch and the bracket slot is opened. When locked the middle expanded part of the hook engages an under cut on the face of the bracket and keeps the latch locked.
  • Bracket face is cut into a triangle longitudinal section.
  • a self locking system as shown in the figure 23.
  • the Figure 22 shows the Profile and facial view of the Bracket Face Lock system. 245
  • the cervical / incisal margin is fixed with a hinge for the face cover to open.
  • the figure 23 shows the ligation system used in Bracket face lock System.
  • Figure 24 shows the view from the Incisal/ Cervical apect. In addition to all the other 250 veiws 3 other views also introducing regarding the Bracket design. One from the Incisal and another from the facial aspect and the design of the base all related to the wingless bracket design.
  • Figure 25 shows the Various facial views possible in the Wingless Bracket design 255
  • the view from the facial aspect varies from f) Round to rectangle with or with out rounded corners g) Rround to square with or with out rounded corners h) Square or Rectangle to Parallelogram with or with out rounded corners
  • Figure 26 shows various Bracket bases that are possible with Wingless Brackets. Now 265 the base of the bracket also shows the transition. It starts from a straight line to a smooth or sharp curve as shown in the figure 26. Any combination of the base with any combination of the Bracket facial appearance all with the wingless Bracket design described earlier.
  • Figure 27 shows the facial and proximal view of Vertical Slide Side Lock Brackets
  • the bracket assembly is separated into 2 pieces. One attacked to the tooth this bears the Bracket slot and have the female portion for occupying the 2 side locks on the 275 Slide Cover.
  • the second part is the Sliding cover with the attached side locks. The cover is used to keep the arch wire in place. Note that the cover portion in the closed position completely covers the arch wire slot.
  • Figure 28 shows Facial View of Vertical Slide Side Lock Bracket's Base assembly 280 and cover separate
  • Figure 29 shows t he Proximal view of the bracket assembly
  • Figure30 shows the view from the cervical aspect with out the side cover.
  • the arch wire slot, the side lock slot and the ligature path are visible.
  • the ligature path is a shallow grove on the Cervical and Occlusal. Incisal aspect of the Bracket base to accommodate a ligature wire if needed.
  • FIG. 31 shows aRotating cover lock Bracket. It is a simple hinge and lock design for bracket opening and closing. The hinge can be either cervical or incisal and the lock on the opposite side respectively. The bracket base assembly and the Cover together defines the Bracket Slot.
  • Figure32 shows the Various facial views of Vertical Slide lock bracket modified bases 300
  • One additional shape transition of bracket from round to oval appart from the shapes previously mentioned . That means, with a wingless design as described earlier, the view from the facial aspect varies from round to rectangle with rounded corners.
  • the present modification is from round to oval as shown in the figure 32 with all wingless bracket design.
  • Figure 33 shows Vertical Slide lock Brackets modified.
  • the locking system is modified to and is restricted to the facial surface only.

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)

Abstract

Les brackets orthodontiques sans ailettes préfabriqués selon l'invention sont conçus de manière à être dépourvus d'ailettes de ligature. A part les ailettes de ligature, ils présentent toutes les autres parties d'un bracket classique. Les brackets peuvent être à base de tout matériau individuel ou d'une combinaison de matériaux quelconques. Le bracket est en forme de D majuscule ou d'apex de parabole. Les brackets sont ligaturés par auto-ligature via un verrou du type à pression. Les brackets à ligature par rail coulissant vertical dont la base est collée sur la surface de la dent et la partie incisée forme un mécanisme de coulisse verticale, les brackets à ligature par pression directe, les brackets à ligature par pression verticale, les brackets à ligature par crochet élastique sont tous des variantes d'un seul et même modèle.
PCT/IN2009/000036 2008-01-11 2009-01-12 Système de brackets orthodontiques auto-ligaturants sans ailettes du type edgewise Ceased WO2009098714A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN106/CHE/2008 2008-01-11
IN106CH2008 2008-01-11

Publications (2)

Publication Number Publication Date
WO2009098714A2 true WO2009098714A2 (fr) 2009-08-13
WO2009098714A3 WO2009098714A3 (fr) 2009-10-29

Family

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Application Number Title Priority Date Filing Date
PCT/IN2009/000036 Ceased WO2009098714A2 (fr) 2008-01-11 2009-01-12 Système de brackets orthodontiques auto-ligaturants sans ailettes du type edgewise

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WO (1) WO2009098714A2 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10182885B2 (en) 2015-10-29 2019-01-22 Mem Dental Technology Co., Ltd Self-ligating bracket
US20220110721A1 (en) * 2020-10-14 2022-04-14 Braces On Demand Inc. Orthodontic devices and methods of use

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5685711A (en) * 1995-12-06 1997-11-11 Hanson; G. Herbert Self-ligating orthodontic brackets
US8251699B2 (en) * 2002-12-31 2012-08-28 Brian C. Reising Orthodontic bracket and method of attaching orthodontic brackets to teeth
US20050019718A1 (en) * 2003-07-22 2005-01-27 Hanson G. Herbert Orthodontic devices for use with arch wires
US6964565B2 (en) * 2004-02-19 2005-11-15 Norbert Abels Two-part orthodontic bracket
US7033170B2 (en) * 2004-05-11 2006-04-25 Mark Andrew Cordato Orthodontic bracket and clip

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10182885B2 (en) 2015-10-29 2019-01-22 Mem Dental Technology Co., Ltd Self-ligating bracket
US11234796B2 (en) 2015-10-29 2022-02-01 Mem Dental Technology Co., Ltd Self-ligating bracket
US20220110721A1 (en) * 2020-10-14 2022-04-14 Braces On Demand Inc. Orthodontic devices and methods of use

Also Published As

Publication number Publication date
WO2009098714A3 (fr) 2009-10-29

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