JP3901257B2 - Edgewise orthodontic bracket for easy ligature removal - Google Patents

Description

[0001]
[Field of the Invention]
  The present invention relates to the field of orthodontic brackets, and more particularly to edgewise orthodontics having at least one tie wing comprising two tie wing tips adapted to facilitate the removal of ligatures. It is about a bracket.
[0002]
[Prior art]
  Edgewise orthodontic brackets generally extend mesial-distal and lipdirectionIt has a slot (groove) that faces the surface. Many of these brackets are positioned in place on the patient's teeth and the archwire is bent so that it is preferably received in the respective slot of each bracket. The bending of the archwire by the orthodontist to force the archwire into place in one of the archwire slots of the bracket will result in a force acting on the bracket, which forces the patient's teeth to which the bracket is attached. It changes to the power of orthodontic treatment that works. The interface between the archwire and the archwire slot is important for transferring this orthodontic treatment force to the patient's teeth. When the length of the archwire slot is reduced, the orthodontic brackettakeAffects the amount of orthodontic treatment force that can be transferred to the attached tooth.
  To hold the archwire inside the archwire slot of each bracket or to force the archwire to affect the type of orthodontic treatment force that is to be applied to a particular tooth, or this For both, the archwire is typically ligated to each bracket. Metal or elastic ligatures are located around the tie wing tips of the brackets, and in many bracket designs, this ligature is placed over the bracket's medial and distal ends and It meshes with the archwire above. These ligatures are removed through orthodontic treatment when replacing the archwire or changing the type of force applied to the archwire by the ligature.
[0003]
[Means for Solving the Problems]
  The present invention includes at least one tie wing and a tie wing passing through the tie wing.NearThe present invention relates to an edgewise orthodontic bracket having an archwire slot extending in the heart-centrifugal direction and facing in the lip direction. Tie wingIsBy archwire slotFirstWith tie wing tipsSecondTie wing tipSeparationIt is formedWith,The firstTie wing tipOr secondTie wing tipeitherOne is shaped to allow ligature removal devices (eg, ligature cutter collars) to engage the ligature as effectively as possible.The
  The edgewise orthodontic bracket of the present invention was realized by the following means.
[1] An edgewise orthodontic bracket (10) having a medial end (55) and a distal end (56), comprising a first tie wing (14a) and a second tie wing (14b), The first and second pair of tie wings (14a, 14b) includes a first tie wing tip (30a, 30b) and a second tie wing tip (18a, 18b), respectively. Archwire slot disposed between (30a, 30b) and second tie wing tips (18a, 18b) extending in the mesial-distal direction ( 54 ) The arch wire slot (54) includes a bottom wall (66a) and a first tie wing tip (30) side first side extending from the bottom wall (66a) at a certain interval in the lip direction. A side wall (58a) and a second side wall (62) on the second tie wing tip (18) side, and the first tie wing and the second tie wing are the archwire slot. ( 54 ) The archwire slot at one of the different ends of the medial end (55) and the distal end (56) of the bracket (10) ( 54 ) The height of the first side wall (58) and the second side wall (62a) extending from the bottom wall (66) in the lip direction is different, and the end of the first tie wing tip (30) First end wales (34) arranged to intersect each other at an angle to facilitate removal of the ligature (106) ligating the archwire (102) to the bracket (10). A first wal portion (42) and a second wal portion (38), each having a substantially flat surface. And edgewise orthodontic bracket.
[2] Arch wire slot ( 54 ) The first side wall (58) and the second side wall (62) of the mesial-distal direction are substantially equal in length and the archwire slot ( 54a ) The edgewise orthodontic bracket according to the above [1], wherein the first side wall (58) and the second side wall (62) of each other face each other.
[3] The first waling part (42) and the second waling part (38) intersecting with each other of the first tie wing tip (30) are both surfaces extending in the lip direction and the lateral direction, The intersection (40) is the archwire slot ( 54 ) At a constant height from the end of the archwire slot, the second wal portion (38) from the intersection (40) with the first wal portion (42). ( 54 ) Towards the bottom wall (66) of the archwire slot and ( 54 ) The edge-wise orthodontic bracket according to [1], wherein the edge-wise orthodontic bracket extends toward the end portion.
[4] The edgewise orthodontic bracket according to [1], wherein the end wal (22) at the end of the second tie wing tip (18) is a continuous flat surface.
  The orthodontic bracket of the present inventionPreachUsed to clarifyArtThe word isSaidBracket on patient's teethtakeRelative position when attachedRelationship (Commonly used in orthodontics to explain positioning)It is.
  “Occlusal””OtherUsed to depict structures that are located closer to the occlusal surface than the structure of or located closer to the patient's occlusal surfaceAnd“Gingival side (gingival)"Used to depict structures that are placed closer to the gingiva than other structures or placed closer to the patient's gingival surfaceis doing.
  Also, “Nearheart("Medial:" and "far"heart((Distal)",The position of a structure,patient'sDentitionAlong the archOtherStructure positionWhenofIn relationshipUsed to depictShiHaveThe
0004]
  Archwire slotEnd ofFirst in the departmentSide walls andThe difference in the “height” of the second side wallThe secondOneThe end wal of the tie wing chip is realized by a first wal portion and a second wal portion arranged to intersect each other at an angle. By forming this first Wal partRemoval of ligatureIt will be easierCharacteristicButProvidedIt is.
  Also,Archwire slotEnd ofPartCanfirstSide walls andArch wire slot to provide the difference in “height” of the second side wallEnd ofThe “corner” of the first tie wing tip in the section may be removed.
  ThisNoFirst of the wire slotSide walls andThe difference in the “height” of the second side wall is the archwire slotEnd ofThe first that corresponds to the departmentWith tie wing tip endwolSecond tie wing tipNoDepending on the shape of the end wallSpecialMarkedTheFirst tie wing tipNoNdewolBut,Intersect each other at an angleFirstWith wal partSecondWolportionAndWhereas the second tie wing tipNoNdewolIs a reamContinued surfaceConsists ofYes. Second tie wing tipNoNdewol and the first tie wing tipNoSecond walltwoofWolBoth portions may extend in the lip direction relative to the base of the bracket (eg, a substantially flat surface), whereas the first tie wing tipNoSecond walloneofWolThe portion (eg, a substantially flat surface)twoAs well as the wal part of the archwire slotEnd ofFrom the department,Centrifugal or mesial direction (For example archwire slotEnd of(Centrifugal direction if the part is above the medial end of the bracket)AndIt may extend in the lip direction. This firstoneThis part can also extend towards the occlusal surface or towards the gingiva.
0005]
  The feature that makes it easy to remove the ligature of the tie wing bracket of the present invention is as follows.Single tie wing bracket medial end and distal endToOr each tie wing of twin tie wing bracketNosoCan be incorporated into both the medial end and the distal end. In this case, the two ends of the bracket are visually opposite to each other with respect to the features discussed above.TheFurthermore, each feature discussed above can only be incorporated into one of the bracket's medial end and distal end.
0006]
DETAILED DESCRIPTION OF THE INVENTION
  The embodiment of the present invention will be described with reference to examples.
  Example:
  Figure 1 shows a tie wing tip for easy removal of ligatures.TheFIG. 6 is a perspective view of one embodiment of a bracket having
  FIG. 2 is another perspective view of the bracket of FIG.
  FIG. 3 is a top view of the bracket of FIG. 1 (seen on the lingual side).
  4 is a front view of the bracket of FIG. 1 (seen on the centrifugal side).
  FIG. 5 is a side view of the bracket of FIG. 1 (seen on the gingival side).
  6 removes the ligature from the bracket of FIG.Indicate stateIt is explanatory drawing.
  Helps illustrate various features of the present invention.KickThe present invention will be described with reference to the accompanying drawings.In addition,Terminology used to describe bracketsAs mentioned aboveBrackets on patient's teeth to be orthodontictakeThe position of the structure when attachedRelationshipRelated to (positioning)To do.
  BookInventionEdgewise orthodontic bracketVariousstrengthWith degree torque (including zero torque) and / or angulation (including zero angulation)AbovechintoothAnd lower jawtoothApplicable to various types of edgewise orthodontic brackets forthingIt is.
  The present inventionNoThe Gidwise orthodontic bracket 10 is shown in FIGS.IndicationHas been. This bracket 10 is shown in FIG.Shown inThe base 82 is included. This base 82 has a mesh pad or the like (not shown).Is solidWorn. SoThis mesh padIsThe patient's teeth through the dressingGlued toThe
  As this exampleIllustratedRubuThe racket 10 is the upper jawRight sideFirst mortarSpecific ones attached to the teethAnd there is a medial edge 86, a distal edge 90,It has a gingival edge 94 and an occlusal edge 98 (see, for example, FIG. 3).Consists of a first tie wing and a second tie wingTwin Tie Wing 14 isExtending from the body 78 of the bracket 10 toward the lips,And two tie wings 14a, 14b isMedial edge 86WhenDistal Edge 90(See FIGS. 1 to 3 and FIG. 5).in this case,Tie wing 14a is the most sympathetic~ sideThe tie wing 14b is the most centrifugal~ sideThe tie wing. These two tie wingsis connected withStructureIndex "a", "b"IsThe mesial side, the distal sideidentificationTo doTheThat is,versusElephantStructureMesialTie wing14aofIf it is above,Use the index a ”Yes, farheart~ sideTie wing 14buponInIf there isUses the index "b"The
0007]
  Archwire slot 54 (54a, 54b)IsIt extends in the mesial-distal direction through the tie wing 14 and is recessed in the lip direction.(Figure1-4). Archwire slot 54 includes a medial slot portion 54a having a medial end 55 of archwire slot 54 and a distal slot portion 54b having a distal end 56 of archwire slot 54 (see, eg, FIG. 3). The medial slot portion 54a and the distal slot portion 54b are spaced apart in the mesial-distal direction.TheAhIs placed,Archwire 102 andMesial-centrifugalDifferent2Biting in placeCan meet(See FIG. 6).
  FigureTo 3IndicationAs shown, the first side wall 58 of the archwire slot 54 (the medial slot portion 54aofFirst side wall 58a, distal slot portion 54bofThe first side wall 58b)RespectivelyCorresponding occlusal tie wing tip 30a,as well asOcclusal tie wingChip 30bThe second side wall 62 of the archwire slot 54 (the medial slot portion 54a)ofSecond side wall 62a, distal slot portion 54bofThe second side wall 62b)RespectivelyCorresponding gingival tie wing tip 18a, 18bTherefore, it is defined. Still in Figure 3IndicationAs shown, the archwire slot 54 also has a bottom wall 66 (a medial slot portion 54a).ofBottom wall portion 66a and distal slot portion 54bofBottom wall portion 66b), the bottom wall 66 beingFirstSide wall 58 andSecond side wallStretched between 62BothAnd thenIllustratedIn the embodiment shown, it has a substantially flat surface.FirstSidewall 58,Second side wall62 extends from the bottom wall 66 toward the lips, IllustratedIn the preferred embodiment,LepingRana surfaceAndAn angle of about 90 degrees with respect to the bottom wall 66soAre arranged (see FIG. 4).
0008]
  The occlusal surface-gingival direction extends between the medial slot portion 54a and the distal slot portion 54b.RuMolded into a convex shapeTheMountain 70 is located(Figure1-4). In one embodimentIsOf the dial arch wire slot portion 54aBottom wall portion 66aAnd the bottom wall portion of the distal arch wire slot portion 54bMinute 66b, the surface of the mountain 70 closest to the lipsTo be a few thousandths of an inch high(See FIG. 5, for example).thisThe mountain 70 fixes the bracket 10 to the teeth.WhenThe orthodontistBy visual inspectionBracket 10 at the center of the toothAligned with the axisAsYouIt is provided for this purpose.
MaReceive orthodontic aids (eg, auxiliary bullets)Get inForOcclusal surface-extending in the gingival directionSlot (not shown)TheOf the base 82On the bottom andUnder the mountain 70It can also be placed in the contact areait can.
  When the bracket 10 is secured to the patient's teeth 110, the archwire 102 (FIG. 6) is placed in the archwire slot 54. The archwire 102 is spaced apart in the mesial-distal direction.Two places,That is, the archwire 102 exerts a force on the bracket 10RumeDial slot portion 54a and distal slot portion 54bAndMesh with bracket 10The
  The archwire 102 is held inside the archwire slot 54 of the bracket 10 by the ligature 106 (FIG. 6). The ligature 106 is attached to the bracket 10 and / or the archwire 102.Attached toThe method also affects the type of therapeutic force applied to the patient's teeth.TheThe ligature 106 ties the archwire 102 to the bracket 10 with the tie wing 14.a, 14bFacilitated by. TYwing 14a, 14bAre respectively along the gingival side edge 94 and the occlusal surface side (occlusal) edge 98 of the bracket 10.On the gingival sideUndercut 26 (26a26b)Undercut the occlusal surfaceGingival tie wing tips 18 having 50 (50a, 50b)a, 18bAnd occlusal tie wing tip 30a, 30bIs included. The ligature 106 is shown in FIG.Shown inAs shown, tie wing tip 18a, 18bAnd 30a, 30bOn the bracket 10 by placing it in each of its undercuts 26 and 50takeCan be attached. In this case, the ligature 106 is engaged with the archwire 102 at the medial edge 86 and the distal edge 90 of the bracket 10.
0009]
  Of the present inventionThe bracket 10 is removed from the bracket 10 when, for example, the archwire 102 is exchanged during orthodontic treatment.ofA feature that facilitates removal of the ligature 106With prepared structureYes.And its structure isAlong the medial edge 86 and part of the distal edge 90 of the bracket 10, SpecialBracket 10 on patient's teethtakeOn the tie wing tip 18 or tie wing tip 30 that is placed under the archwire 102 when applied.The feature of facilitating the removal of the ligature 106 from the bracket 10 by being provided respectively.Provided.
  Bracket of the present inventionPatient's upper jaws teethApply toIf,As mentioned aboveOn the occlusal tie wing tip 30The structure isIngredientsIsWill beButUnder the patientJawDesigned for teethTheBracket 10soIs discussed belowThe structureTie wing tip on the gingival sideOfaboveWill have(Not shown).
  Described in this exampleThe gingival side tie wing tips 18a and 18b of the bracket 10 are part of the medial edge 86 and the distal edge 90 of the bracket 10, respectively.Comprising a flat continuous surface extending in the lip direction from the base 82 of the bracket 10EndwoLe 22a and 22b(See Figure 1)EachThe second Taiwi according to claim 1 This is a tie wing tip equivalent to a wing tip.
  on the other hand,Occlusal tie wing tips 30a and 30b are respectivelyIt corresponds to the first tie wing chip described in claim 1,A portion of the medial edge 86 and the distal edge 90 of the bracket 10 are defined.RueNdowol 34a, 34bEach contains(Figure1).Occlusal tie tip30 each end wal 34a, 34bIs a flat surface extending from the base 82 toward the lips.twoofWolPart 38a, 38b andFirsttwoofWolPart 38a, 38bFrom lips to lips and againTheTowards the mesio-distal midline 12 of the racket 10At an angleGrowingConsists of the first Wal part. And this secondoneofWolPart 42a, 42bThe above to facilitate removal of ligaturesConstructionIs provided.
  lower jaws teethIn brackets to apply to thisConstructionOn the gingival tie wing tip as described aboveFormationIs done.
0010]
  Occlusal tie wing tip 30aNoSecond Wall 34aoneofWolPortion 42a may be a medial edge 86 of bracket 10 or a media end 55 of archwire slot 54.LipsThe occlusal tie wing tip 30bDowwal 34bFirstoneofWolThe portion 42b may be a distal edge 90 of the bracket 10 or a distal end 56 of the archwire slot 54.LipsIt extends in the direction.
  The first of each end wall 34 of the occlusal tie wing chip 30Wolportion42 andSecondWolportion38 andIsWith an angleCrossedAndBetween themEach intersection 40Existing. The firstWolportion42And secondWolportion38 andCrossingPart40 may be a state that does not show a clear ridgeline, that is, a state that does not show a clear ridge angle, and the crossing portion forms a rounded ridge portion. And ligature for orthodontic practitioners (dentists)WearingIt is preferable in terms of work.
  Occlusal Tie Wing Tip 30a, 30bThe firstoneofWolPart 42a, 42bOcclusal Tie Wing Tip 30a, 30bDefined against the lip-direction surface 46 (46a, 46b)EvenGood.
  Occlusal tie wing tip 30aFirstoneofWolPart 42aItIntersectLip direction surface 46aFrom the bottom wall 66 of the archwire slot 54 or the base 82 of the bracket 10(That is,First walPart 42aIs the lip direction surface 46aTongue outIn the direction)The medial midline 12 of the bracket 10DirectionTo the medial edge 86 of the bracket 10 or the medial end 55 of the archwire slot 54StretchIt is
  Also,Occlusal tie wing tip 30bFirstoneofWolPart 42bIt is crossedLip direction surface 46bRToward the bottom wall 66 of the torch wire slot 54 or toward the base 82(That is, the first wal portion 42b is removed from the lip-direction surface 46b.In the direction)Toward the distal end 90 of the bracket 10 or the distal end 56 of the archwire slot 54StretchIt is
  The lip-direction surface 46 and the corresponding firstoneofWolPart 42 isAt an angleCrossArrangeBetween them, so between themIs the intersection48 (48a, 48b) exists. eachIntersection48a, 48bAre spaced from the corresponding end of the archwire slot 54 (ie,Intersection48a is located on the distal side of the medial end 55 of the archwire slot 54.Crossing48b is located on the mesial side of the distal end 56 of the archwire slot 54). In addition, theIntersection48a, 48bEven saidIntersection40a, 40bAs in the case of, a state where a clear ridge line is not shown, that is, a state where a clear ridge angle is not shown and the crossing portion forms a rounded ridge portion may be used.
0011]
  The present inventionNoRacketOcclusalTie wing tip30InIngredientsBeLigature 1 Structure that facilitates removal of 06Further characterizes the depth of the slot at the medial end 55 and / or the distal end 56 of the archwire slot 54.wearYou can also.
  Occlusal tie wing tip 30 in generalNoFor example, in FIG.IndicationAs can be seen, at the corresponding end of the archwire slot 54, the gingival tie wing tip 18NoMore than Ndewol 22Low""
  At the medial end 55 of the archwire slot 54, the occlusal tie wing tip 30 is provided.aThe second wall 34a extends from the bottom wall portion 66a of the medial slot portion 54a in the lip direction.HeightThe gingival side tie wing tip 18aNoNdwol 22a extends from the bottom wall portion 66a toward the lipsHeightThanLowYes. This is shown in FIG.OhWing tipNoA clearer understanding can be obtained by comparing the intersections of the door wall and the side wall of the archwire slot.
  Continuing with reference to FIG. 1, the first side wall 5 of the media slot portion 54a of the archwire slot 54 is continued.8aOcclusal tie tip 30aNoCrosses with Dowwal 34a. This intersection isSince the end wal 34a of the occlusal tie wing chip 30a includes a first wal portion 42a and a second wal portion 34a,Extends from the bottom wall portion 66a of the medial slot portion 54a of the archwire slot 54 in the lip direction.Ridgeline31aAnd ridgeline31aFromAt an angleIn the direction of the lips,OneRacket 10 media oriental midline 12DirectionStretches towardRidge line 32forming ais doing. In one embodimentIs,Ridgeline31aWhenRidgeline32aThe angle between is in the range of 1-60 °. Preferably, it is in the range of 20-50 °, particularly preferably in the range of 30-40 °.
0012]
  Continuing further with reference to FIG. 1, the second side of the media slot portion 54a of the archwire slot 54Wall 62a isGingival side tie wing tip 18aNoCrosses with Dowwal 22a. This intersecting portion extends from the bottom wall portion 66a of the medial slot portion 54a of the archwire slot 54 in the lip direction.FlyRidgeLine 24forming ais doing.The ridgeline31aWhenThe ridgeline24aWhat isAlmostParallel.And ridgeline31a is, RidgelineShorter than 24a. In one embodimentIs,RidgelineThe length of 31a isRidgelineIt is in the range of 0 to 70% of the length of 24a. In particular, it is more preferably in the range of 30 to 60%.
  thisMake ligature removal easierThe structure isThe “upper” portion of the torch wire slot 54 orTongueOne of the tie wing tips only in the direction and on the medial edge and / or distal edgeCornerOnly in the partFormationBe doneTherefore, the archwire slot 54 is not adversely affected.
  AlsoThe length of the intersection between the first side wall 58a and the bottom wall portion 66a is equal to the length of the intersection between the second side wall 62a and the bottom wall portion 66a.
  In this way, at least the portion of the archwire 102 that is located closest to the lips meshes along the entire length of the archwire slot 54.AndEach occlusal tie wing tip 30NoThe shape of the dowel 34 facilitates removal of the ligature 106 to remove the archwire 102 from the archwire slot 54 of the bracket 10.
  The bracket 10 in FIG.Right jawOn the first premolar tooth 110Shown installedWhere 114 indicates the patient's gingiva. Occlusal tie wing tip 30aNoThe shape of the door wall 34a provides a gap between the bracket 10 and the ligature 106 (not shown). This gap allows the ligature cutter 118 to engage the ligature 106 effectively. Furthermore, the occlusal tie wing tip 30First walPart 42shapeAllows the ridge 122 of the ligature cutter to cross the ligature 106, which also facilitates cutting the ligature 106.
0013]
  BookIn the exampleExplains the twin tie bracketShiThe ligature discussed hereーRemovalStructure to facilitateCan also be applied to single tie bracketsThefurtherTheBoth the medial edge 86 and the distal edge 90 of the racket 10NikoLigaturesーRemovalStructure to facilitateTheIngredientsThatAsExplanationShiHowever, one of these edges 86, 90, whether the bracket is a single tie wing bracket or a twin tie wing bracket.The present inventionGacha removalWith structure to facilitateNeed itBecome.
  The present invention,the aboveIn the exampleOf the type disclosedLimited to edgewise orthodontic bracketsDeterminedNot a thingTo the above teachingversusMeetYouVarious aspects and modifications, and skills or knowledge related to the art are also within the scope of the present invention. The examples described above are further intended to illustrate the best method known to practice the invention, and in the form of such examples or other embodiments. And, it is intended to enable the person skilled in the art to utilize the invention in the form of other embodiments with various modifications required by the particular application or use of the invention.
0014]
【The invention's effect】
  As described above, according to the edgewise orthodontic bracket including the tie wing tip of the present invention, it is possible to easily remove the ligature (ligature).
[Brief description of the drawings]
[Figure 1] The ligatureRemovalTie wing tips for easyTheFIG.
FIG. 2 is another perspective view of the bracket of FIG. 1;
3 is a top view of the bracket of FIG. 1 (lingual side)Insaw).
4 is a front view of the bracket of FIG. 1 (centrifugal side)Insaw).
FIG. 5 is a side view of the bracket of FIG. 1 (root side).Insaw).
6 is an explanatory view showing a state in which the ligature is removed from the bracket of FIG. 1. FIG.
[Explanation of symbols]
    10: Bracket
    12: Mediordial midline
    14: Tie Wing
    18: Gingival tie wing tip
    30: Occlusal tie wing tip
    40:Intersection
    46: Surface in lip direction
    48:Intersection
    54: Archwire slot
    55: Medial end
    56: Distal end
    58: Side wall
    62: Side wall
    66: Bottom wall
    70: Mountain
    78: Bracket body
    82: Base
    86: Medial edge
    90: Distal edge
    94: Gingival side edge
    98: Occlusal edge
    102: Archwire
    106: Ligature
    110: Upper first premolar
    114: Gingiva
    118: Ligature cutter
    122: Butt portion of ligature cutter

Claims (4)

An edgewise orthodontic bracket (10) having a medial end (55) and a distal end (56) ,
A first tie wing (14a) and a second tie wing (14b) are provided, and the first and second pair of tie wings (14a, 14b) are respectively connected to the first tie wing tips (30a, 30b). ) a second tie wing tips (18a, 18b) wherein the first tie wing tips (30a, 30b) and the second tie wing tips (18a, 18b) and disposed between the mesial - includes an archwire slot extending in a centrifugal direction (54), wherein the archwire slot (54), a bottom wall (66a), extending at intervals of a constant lips direction from said bottom wall (66a) consists out with the first tie wing tips (30) side of the first side wall (58a) and a second tie wing tips (18) side of the second side wall (62), and said first tie wings Second tie Queuing said Mejiaruendo (55) and said at any different one of the ends of the Distal End (56) archwire slot said first (54) before Symbol bracket (10) of said archwire slot (54) side walls (58) and becomes different elongation Ru height lips direction from Kisokokabe (66) prior to said second side wall (62a), and the end of the end of the first tie wing tip (30) A first wal portion (42) arranged such that the wal (34) intersects at an angle with each other to facilitate removal of the ligature (106) ligating the archwire (102) to the bracket (10). ) And a second wal portion (38), the first wal portion (42) and the second wal portion (38) each having a substantially flat surface. Edgewise orthodontic bracket according to claim. Wherein said first side wall (58) and the second mesial side wall (62) of the archwire slot (54) - the length of the centrifugal direction is substantially equal, and the archwire slot (54a) first characterized in that opposite the one side wall (58) and the second side wall (62), the edgewise orthodontic bracket according to claim 1, wherein. The first the first Wal portion (42) and the second Wal portions intersecting each other tie wing tips (30) (38), but none is a surface extending in the labial direction and laterally thereof intersection (40) is disposed at a constant height from the front Symbol ends of the archwire slot (54), said second Wal portion (38), the intersection of the said first Wal portion (42) from unit (40), wherein toward the bottom wall (66) of the archwire slot (54), and characterized in that it extends toward the front Symbol ends of the archwire slot (54), wherein Item 1. An edgewise orthodontic bracket according to item 1. End of the e Ndoworu (22) is edgewise orthodontic bracket according to claim 1, wherein the Ru flat surface der was continuous prior Symbol second tie wing tip (18).

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