KR101299811B1 - Non-wing orthodontic bracket - Google Patents

Abstract

PURPOSE: An orthodontic bracket without wings is provided to improve the sanitation of the mouth, to reduce the size of the bracket, and to improve the appearance of the bracket. CONSTITUTION: An orthodontic bracket without wings comprises a body in which a wire for applying tension to a tooth is fixed to move the tooth to a desired location and a base which connects to the body and is attached to teeth. The body is formed with grooves (110) having a predetermined depth on one side thereof which is open so that a wire can be inserted. The body or the base is formed with one or more tubes through which a wire passes.

Description

Bladeless orthodontic bracket {Non-wing orthodontic bracket}

The present invention relates to a wingless orthodontic bracket, and more particularly to a wingless orthodontic bracket that can be ligated to the tube, ring, hook, etc. to the ligation wire for fixing the archwire to be fitted to the bracket.

Traditionally, the health of teeth in Korea is said to be one of five innate blessings. Especially, when talking, the other person sees the teeth around his or her mouth and the teeth cleanly and neatly aligned. Impressions and good feelings are felt, and this prejudice generally affects interpersonal relationships.

There are many ways to treat neatly and correctly corrected teeth, but there are generally two basic orthodontic treatments. Such orthodontics are light wire treatment and edrum treatment.

Lightweight wire treatment is a technique used to correct each tooth with a different force. blood. It was first proposed and performed by RP Begg.

That is, RPBegg, who has found that some types of teeth have relatively less gum resistance than others, and that some types of teeth move faster than others, considers this interaction to properly consider those that need to move. It has been found that by selectively moving the alignment of the teeth can be neat.

Beg's lightweight wire therapy secures the brackets to all teeth, including molars, and straightens the alignment of the teeth with arch wires that look round in cross section. The archwires are loosely fixed to the brackets and are not strapped, but with minimal friction, and are contacted at one point to allow the teeth to slide, rotate, tilt and twist freely. In particular, tilting, twisting and rotating require suitable assistive devices.

Tedurum therapy is also the most widely and commonly used orthodontic treatment currently offered and first proposed by Dr. Edward H. Angle.

The edrum treatment uses archwires in the form of a circular cross section at the beginning, and the flexible arch arch wires move the teeth in the wrong position over a wide range with a small force.

Arch wires fit into slots formed in brackets that attach to all permanent teeth, including molar teeth, and consist of metal or elastic bands or other suitable forms of mechanical retainers.

This rim treatment allows the tooth to be controlled in all directions, allowing any individual tooth to move simultaneously in three directions. For example, the front tooth may be moved to the position of the tongue, and the archwire may be adjusted to rotate around the long axis of the tooth. The archwire has the same characteristics as the spring and the ligation line, which can twist the tooth to a predetermined range, and the torsional force is applied to the tooth through the archwire, so that the teeth are rotated until they are not twisted due to the spring and the ligament action of the archwire. And move.

The bracket has a twin type siamese type (Siamese Type) and one independent type (Single Type), the arch wire is inserted and fixed in the middle portion, attached to the surface of each tooth with adhesive, By directing the force by the elasticity of the archwire to the teeth and acting a direct force to tilt, twist and rotate, it can be attached to the labia between the teeth and the lips and the lingual side between the teeth and the tongue.

Referring to Figure 1 illustrates the structure of the orthodontic bracket (1) according to the prior art, the base portion (2) attached to the surface of the teeth, the front portion (3) attached to the teeth and connected to the lips , A slot portion 4 into which the archwire is inserted, and a jaw portion 5 extending from the front portion to form a locking groove 6.

Referring to the orthodontic bracket (1) according to the prior art with reference to the accompanying Figures 1 and 2, when the orthodontics are to be corrected, the base portion (2) of the bracket (1) using an adhesive to each tooth Attach.

Each bracket 10 is attached to and fixed to the teeth so that the slot portion 4 maintains a straight line, the arch wire (w) is inserted into the slot portion 4, each bracket 1 is a ring made of rubber or the like (Ring) ) And the arch wire (7) with a ligation wire (wire) made of a metal material or the like. At this time, the ring and the ligation line is inserted into the locking groove 6 while being connected to the arch wire (w) and is not separated by the jaw portion 5. In addition, as the arrangement of the teeth is corrected, the position of the teeth is changed, and frictional resistance is generated between the bracket and the archwire attached to the teeth.

Looking at the conventionally developed and used techniques,

Registration No. 10-0845600 relates to a 'orthodontic bracket', which is a bracket for fixing an arch wire and correcting an arrangement of teeth by a ring and a ligation line, wherein the arch wire is inserted into a central portion to have a contact area. A body portion having a short first slot portion and a second slot portion into which the ring and the ligation line are inserted, each having a small cross-sectional area and forming a round portion at a protruding edge, and is fixed to the surface of the tooth and has a large cross-sectional area; Dental dentition including a base portion having a bottom surface and forming a round portion at the protruding front edge and integrally connecting the base portion and the body portion, and a groove in which the ring and the ligation line are inserted and fixed are formed on the entire side surface. The orthodontic bracket is shown.

Registration No. 10-1016416 relates to a 'orthodontic bracket', in which orthodontic brackets attach a wire to a tooth for applying force to the tooth to move the tooth to a desired position, the bracket being fixed to the tooth A bracket for orthodontics, characterized by including a body portion and a detachable attachment means coupled to the bracket body portion and detachably attached to a tooth surface.

”자형 중 어느 하나로 되고, 상기 홈에 설치된 후 외부로 노출되는 양측면과 양단 상면에 상기 본체와 동일 재질의 박판이 부착되며, 티타늄, 스테인레스 스틸, 니켈-티타늄합금 중 어느 하나의 재질로 이루어지는 금속 재질 또는, 상기 본체의 재질과 동일한 산화알루미늄, 자기, 세라믹(Ceramic), 천연수지(Resin), 산화지르코늄, 산화알루미늄과 유리섬유의 혼합물 중 어느 하나의 재질로 이루어지는 슬롯부와, 상기 본체의 저면 내측에 설치되고, 저면이 본체의 저면과 동일한 위치에 위치하도록 설치되며, 그 저면이 본체의 저면보다 높은 위치에 위치하도록 함몰되고, 저면이 널링 처리되며, 티타늄, 스테인레스 스틸, 니켈-티타늄합금 중 어느 하나의 재질로 이루어지는 금속재질 또는, 상기 본체의 재질과 동일한 산화알루미늄, 자기, 세라믹(Ceramic), 천연수지(Resin), 산화지르코늄, 산화알루미늄과 유리섬유의 혼합물 중 어느 하나의 재질로 이루어지는 베이스판과, 일단은 상기 관통공을 관통하고 타단은 상기 끼움 홈에 삽입되며 상기 장방형 슬롯부에 수용되는 교정용 와이어와 대응되는 위치에 적어도 하나 이상의 호형돌기가 형성되어 교정용 와이어와 점 접촉함과 동시에 교정용 와이어를 파지하며, 적어도 하나 이상의 호형돌기를 형성하여 교정용 와이어와 점접촉하는 것과 함께 교정용 와이어를 고정하는 클립과, 상기 본체의 측면 양측에 각각 설치되고, 상기 슬롯부에 수용되는 교정용 와이어와 대응되는 위치에 적어도 하나 이상 설치되는 호형돌기와, 수용되는 장방 "U"자형 또는 "

"자형으로 되는 슬롯부의 양단 상면이 가려질 수 있도록 "Y"자 형태로 이루어지는 홈을 포함하여 이루어지는 것을 특징으로 하는 치아 교정용 브라켓을 나타내고 있다.Registration No. 10-1118191 relates to a 'brace for orthodontics', which is attached to a tooth and is formed by cutting one side of the upper surface to form a vertical surface and a horizontal surface, and forming a fitting groove having one surface open on the vertical surface. Grooves are formed to communicate the front and rear surfaces on the horizontal surface, and through holes are formed to penetrate both sides thereof, and are made of aluminum oxide, porcelain, ceramic, natural resin, zirconium oxide, aluminum oxide and glass fiber. Rectangle is formed of any one of the material of the material, and is installed in the groove, the rectangular "U" or both ends formed bent so that the receiving groove for receiving the calibration wire is provided "

It is made of any one of the shape of the metal plate is attached to the upper surface of both sides and both ends exposed to the outside after being installed in the groove and the upper body, made of any one material of titanium, stainless steel, nickel-titanium alloy Alternatively, the slot portion made of any one of the same material as the material of the main body, aluminum oxide, porcelain, ceramic, natural resin (Resin), zirconium oxide, aluminum oxide and glass fiber, and the bottom inner side of the main body The bottom is recessed so that the bottom is located at the same position as the bottom of the body, the bottom is recessed to be at a position higher than the bottom of the body, the bottom is knurled, and any of titanium, stainless steel and nickel-titanium alloy Metallic material made of one material or aluminum oxide, porcelain, ceramic, natural A base plate made of any one of a resin, a zirconium oxide, a mixture of aluminum oxide and glass fiber, and one end penetrates the through hole and the other end is inserted into the fitting groove and accommodated in the rectangular slot part. At least one arc-shaped projection is formed at a position corresponding to the wire for gripping and at the same time gripping the calibration wire, and forming at least one arc-shaped projection to make point-contact with the calibration wire. Clips for fixing the wires, arcing protrusions respectively provided at both sides of the side of the main body, and at least one arcing protrusion is provided at a position corresponding to the calibration wire accommodated in the slot portion, the rectangular "U" or "accommodating"

"Orthodontic bracket is characterized in that it comprises a groove formed in the" Y "shape so that the upper surface of both ends of the slot portion to be shaped.

Although various conventional orthodontic brackets have been developed and used as described above, the ring and the ligation line are projected while fixing the arch wire (w) and the bracket (1), and are connected to the lips and visually exposed to others. It gives a sense of discomfort and rejection, there is a problem such as being not hygienic because the foreign matter such as food is jammed.

It is difficult to separate the ring and the ligation line inserted into the slot part 4 over time, and the area where the slot part 4 is in contact with the arch wire w is large, thereby causing a frictional resistance.

In addition, the ring and the ligation line for fixing the archwire is colored by food and the like over time to give the other party a visual disgust, discomfort and rejection, and the corners of the bracket 10 front portion 30 is angled When connected to the lips, there is a problem that gives a foreign body feeling uncomfortable to use.

The present invention has been made in order to solve the above problems of the prior art to miniaturize the orthodontic bracket, so that there is no gap between the base attached to the tooth and the body connected to the base, one side is open to the body In order to wire the wire, the tube or ring, hook, etc. are formed and configured on the body or base for ligation of the wire, and the ligation is provided to provide a wingless orthodontic bracket. It is completed.

According to the present invention for achieving the above object, in order to move the tooth to a desired position in the orthodontic bracket consisting of a body to which the wire for applying force to the tooth is fixed and the base connected to the body attached to the tooth In the bracket, the connecting portion connecting the body and the base is configured such that there is no groove in the connecting portion, but the one side is open to form a groove having a predetermined depth in the longitudinal direction of the wire so that the wire can be inserted into the body. To provide a wingless orthodontic bracket to solve the problem.

According to the bladeless orthodontic bracket according to the present invention, the wing of the conventional bracket is not formed so that there is no gap between the wing and the base to improve the oral hygiene surface, the size of the bracket can be miniaturized, This increases the aesthetics of the viewer, minimizes the occlusal interference between the teeth due to the miniaturization of the bracket, thereby minimizing the soft tissue variation in the oral cavity. In order to fix the wire, it can be ligated through the tube, ring, hook, etc. of the miniaturized bracket to improve the aesthetic, functional and oral hygiene aspects.

1 is a perspective view showing a bracket used conventionally
2 is a use state diagram showing an embodiment of a conventionally used bracket
Figure 3 is a perspective view of the present invention wingless orthodontic bracket
Figure 4 is a side view showing the present inventors wingless orthodontic bracket
Figure 5 is a side view showing an embodiment of the foreign matter adhesion of the present invention (A) and the prior art (B)
Figure 6 is a side view showing an embodiment of the tooth occlusal interference of the present invention (A) and the prior art (B)
Figure 7 is a perspective view showing another embodiment of the groove of the inventors wingless orthodontic bracket
Figure 8 is a use state showing an embodiment of the present invention wingless orthodontic bracket
Figure 9 is a perspective view showing another embodiment of the present invention wingless orthodontic bracket
FIG. 10 is a state diagram showing an embodiment of a ligation line for ligation of wires through a tube formed in the bladeless orthodontic bracket of FIG. 9. FIG.
Figure 11 is a perspective view showing another embodiment of the present invention wingless orthodontic bracket
12 is a perspective view showing another embodiment of the present inventors wingless orthodontic bracket
FIG. 13 is a connection diagram illustrating an embodiment of a clip for ligating a wire through a tube formed in the bladeless orthodontic bracket of FIG. 9. FIG.
14 is a use state diagram showing an embodiment of FIG.
15 is a state diagram showing another embodiment of FIG. 14.
16 is a connection diagram showing another embodiment of a clip for ligating a wire through a tube formed in the bladeless orthodontic bracket of FIG.
17 is a use state diagram illustrating an embodiment of FIG. 16.

3 to 17, the present invention is a wingless orthodontic bracket described with reference to, the body to which the wire (w) for applying a force to the tooth 20 to move the tooth 20 to a desired position is fixed And in the orthodontic bracket consisting of a base connected to the body and attached to the tooth 20, the bracket is configured to be connected so that there is no groove in the connecting portion 130 connecting the body 100 and the base 200 Body 100 is formed with a wingless orthodontic bracket 10 that is open to form a groove 110 of a predetermined depth in the longitudinal direction of the wire (w) so that the wire (w) can be fitted. do.

One or more plural tubes 120, rings 210, and hooks 220 through which the ligation line 300 penetrates are formed or connected to the body 100 or the base 200.

The groove 110 of the body 100 may vary in angle depending on the position where the bracket 10 is attached to the tooth 20.

The body 100 and the base 200 may be selectively formed in a circular or polygonal shape, and the base 200 may vary in angle depending on the shape of the tooth 20 to which it is attached.

Referring to the configuration of the wingless orthodontic bracket 10 described above in more detail with reference to Figures 3 to 17,

First, the body 100 and the base 200 are connected so that the groove portion of the concave shape is connected to the connecting portion 130 connecting the body 100 and the base 200, but the wire 100 is fitted into the body 100. One side is to form a groove 110 of a predetermined depth in the longitudinal direction in which the wire (w) is fitted to be opened.

3 to 5, in the present invention, a concave groove is formed in the connection portion 130 connecting the body 100 and the base 200, as in the bracket 1 of FIG. 1. (It is conventionally formed with a concave groove between the base and the body), thereby increasing the connection force of the body 100 connected to the base 200, foreign matter that accumulates in the groove of the conventional concave shape when ingesting food ( 400) and no plaque.

Accordingly, the present invention improves the hygienic side of the oral cavity so that there is no gap in the connecting portion 130 connecting the body 100 and the base 200 as shown in FIGS. The body 100 and the base 200 of the present invention is connected to the concave-shaped groove formed between the base and the wing of the conventional bracket 1 shown in FIG. (B of FIG. 5) is prevented in advance, and thus, in the present invention, there is no gap in the connection portion 130 as shown in FIG. The risk of demineralization of the bladeless orthodontic bracket 10 in the tooth 10 has been lowered.

In addition, since the blade is not formed as in the prior art, the bracket 10 can be miniaturized, and thus the torque control ability can be increased when the torque for the teeth 20 is adjusted, and less variation in the soft tissues in the oral cavity can be caused. have. In addition, the smaller the size of the bracket (10) has been raised to the aesthetic surface, as shown in Figure 6 (A) when attached to the tooth 20, the occlusion between the tooth 20 and the tooth 20 The interference is reduced (in the past, as shown in FIG. 6B, the size of the bracket 1 is large, thereby increasing the occlusal interference between the teeth 20 and the teeth 20). Reduced the risk of dropout.

Miniaturized bracket 10 as described above is easy to adjust the bracket 10 to give a sense of stability to be attached to a more accurate position when attached to the rotated tooth (20).

As shown in FIGS. 3 to 17, the body 100 is opened by forming a groove 110 having a predetermined depth in a length direction in which the wire w is fitted so that the wire w may be fitted thereto. have.

" 형상으로 될 수 있다.
The groove 110 may be fitted with a generally used wire (w), the shape of the groove 110 to be fitted is typically "U", "

Can be shaped.

The body 100 and the base 200 may be selectively formed in the shape of a circular or polygonal, the base 200 may also vary in angle depending on the shape of the tooth 20 to be attached, the base 200 As the angle of the body 100 may vary, the angle of the body 100 may also vary.

9 and 10, the body 100 has a tube 120 through which the ligation line 300 penetrates, and the tube 120 is fitted into the groove 110 of the body 100. The ligation line is for ligation of the wire w through the tube 120.

The tube 120 may be formed in various directions, such as the longitudinal direction of the groove 110 of the body 100 or the axial direction of the groove 110, depending on the use, thereby ligation force on the wire (w) It was possible to raise the.

The tube 120 may be formed horizontally on both sides with respect to the groove 110 of the body 100 or vertically in the axial direction of the groove 110. It is formed at the bottom of the (110).

In addition, one or more horizontal and vertical formations of the tube 120 may be formed, and this may be selectively varied according to use.

11 and 12, the base 200 is configured with a ring 210 or a hook 220 to which the ligation line 300 is connected. The ring 210 and the hook 220 are for ligation with the wire w as the function of the tube 120 described above.

The ring 210 and the hook 220 is configured to be connected to the base 200, which may be configured to be connected to the outside of the base 200 or the body 100, such a ring 210 and the hook 220 The configuration of the body 100 and the base 200 to be configured to selectively connect.

Although the tube 120, the ring 210, and the hook 220 are described to be formed or connected to the body 100 or the base 200 as described above, respectively, the tube 120 and the ring 210 are described. And the hook 220 is not limited to the above description may be formed in the tube 120, the base 200, or may be used by connecting the ring 210 and the hook 220 to the body 100.

In addition, the tube 120, the ring 210 and the hook 220 are for ligating the wire (w), the respective functions of which are fitted into the groove 110, using the ligation line bracket 10 And to increase the ligation force of the wire (w).

As illustrated in FIG. 7, the angle of the wingless orthodontic bracket 10 may be varied when the groove 110 of the body 100 is formed when attached to the inner side of the tooth 20.

This can be used by attaching the present invention wingless orthodontic bracket 10 to the outside or inside of the tooth 20, respectively, when attached to the inside and outside of the tooth 20 to the body 100 of the bracket (10) The groove 110 is formed to be open at various angles with respect to the tooth 20, so that the bracket 10 of the present invention can be used on the outside or the inside of the tooth 20, respectively.

Referring to FIGS. 13 to 17, one side is fitted into the tube 120 of the body 100, and the other side is formed to be bent and extended in the longitudinal direction of the body 100. The clip 500 for ligating the wire w fitted in the 110 is configured, which is another embodiment of FIG. 10.

13 to 15 are the clip 500 is inserted into the tube 120 of the body 100 and then the outer side is fitted to the support groove 140 of the body 100 to support the clip 500 And to increase the ligation force on the wire (w). As shown in FIG. 15, the clip 500 may be connected to a portion that is extended and bent from the tube 120 to increase ligation force on the wire w.

16 and 17 illustrate another embodiment of the clip 500 illustrated in FIG. 13.

A portion of the clip 500 that is fitted to the tube 120 of the body 100 has a bent portion 510 to prevent the clip 500 from being separated from the tube 120.

In addition, as shown in FIG. 17, when the wire w is ligated, the other side of the clip 500 is shortened so that a portion that is bent and extended from the tube 120 is ligated with the wire w.

Referring to the embodiment of the present invention wingless orthodontic bracket 10 with reference to Figures 3 to 17,

First, attach the base 200 to which the body 100 is connected to the teeth 20 to be corrected.

At this time, there should be no gap between the body 100 and the base 200, the body 100 has a variety of shapes and one side should be open so that the wire (w) is fitted.

When the bracket 10 is attached to the teeth 20 in the above, the wire (w) connecting the plurality of brackets 10 attached to each of them is fitted into the groove (110).

When the wire (w) is fitted in the groove 110 in the above, after passing through the ligation line to the tube 120 of the body 100 to bind the wire (w). In more detail, the tube 120 that is long penetrated in the longitudinal direction of the groove 110 is formed up and down about the groove 110, and thus, the ligation of the ligation line 300 will be described. First, the ligation line 300 penetrates to the left side of the upper tube 120 and is discharged to the right side, and then the discharged ligation line 300 is wrapped around the upper side of the wire w, and then the right side of the lower tube 120. After passing through the ligation line 300 to the left to discharge the ligation line 300 to wrap the upper side of the wire (w) and then reach the left side of the upper tube 120 and then the ligation line 300 Finish with kinks, etc.

The ligation of the ligation line 300 described above is described, for example, and is not limited to the above description. X-type ligation is also possible

Referring to another embodiment applied to the ligation of the ligation line 300 described above,

The tube 100, the ring 210 or the hook 220 may be connected to the body 100 or the base 200, which is the configuration of the present invention. The ring 210 or the hook 220 may have a square shape. For example, the base 200 may be configured at each corner, and the ring 210 or the hook 220 may be connected as described in the above-described tube 120, so that the wire may be ligated with the ligation line 300. have.

In addition, referring to FIGS. 13 to 17,

The clip 500 was configured in place of the ligating line 300 for ligating the wire w through the tube 120.

The clip 500 is one side is fitted to the tube 120, as shown in Figure 14, the other side is extended to be bent so as to fit in the support groove 140 of the body (100) the wire (w) To ligation. 15, the clip 500 is inserted into the support groove 140 of the body 100 when the wire w is ligated and connected to the bent portion so that the wire w is ligated.

15 and 16 are formed by the bent portion 510 to be fitted to the tube 120 that is one side of the clip 500, the clip 500 does not have to form the support groove 140 in the body 100 After being fitted at (100) it prevented the departure.

According to the present invention wingless orthodontic bracket (10) as described above, so that the wing of the conventional bracket is not formed so that there is no gap between the wing and the base to improve the oral hygiene surface, bracket (10) ) Can be miniaturized, thereby increasing the aesthetics of the viewer, and by the miniaturization of the bracket (10) to reduce the occlusal interference between the teeth 20 and 20, soft tissue shift in the oral cavity Minimized, can be attached in the correct position due to miniaturization when attached to the rotated teeth, tube 120, ring 210, hook 220 of the miniature bracket 10 in fixing the wire (w) By ligating the wire (w) through the back is an invention that improves the aesthetic, functional and oral hygiene aspects for the bracket (10).

10: bladeless orthodontic bracket 20: teeth
100: body 110: groove 120: tube
130: connection portion 140: support groove
200: base 210: ring 220: hook
300: ligation line 400: foreign matter 500: clip
w: wire

Claims (10)

delete delete delete delete To orthodontic bracket consisting of a body to which the wire (w) for applying force to the tooth 20 to move the tooth 20 to a desired position and a base connected to the body and attached to the tooth 20 In
The bracket is configured so that the groove portion is connected to the connection portion 130 connecting the body 100 and the base 200, but one side of the wire w is inserted into the body 100. Open to form a groove 110 of a predetermined depth in the longitudinal direction,
The blade 100 orthodontic bracket, characterized in that the body 100 or the base 200 is characterized in that at least one tube 120 through which the ligation line 300 is formed.
To orthodontic bracket consisting of a body to which the wire (w) for applying force to the tooth 20 to move the tooth 20 to a desired position and a base connected to the body and attached to the tooth 20 In
The bracket is configured so that the groove portion is connected to the connection portion 130 connecting the body 100 and the base 200, but one side of the wire w is inserted into the body 100. Open to form a groove 110 of a predetermined depth in the longitudinal direction,
The blade 100 orthodontic bracket, characterized in that at least one or more ring 210 through which the ligation line 300 is formed in the body 100 or the base 200 is formed.
To orthodontic bracket consisting of a body to which the wire (w) for applying force to the tooth 20 to move the tooth 20 to a desired position and a base connected to the body and attached to the tooth 20 In
The bracket is configured so that the groove portion is connected to the connection portion 130 connecting the body 100 and the base 200, but one side of the wire w is inserted into the body 100. Open to form a groove 110 of a predetermined depth in the longitudinal direction,
The blade 100 orthodontic bracket, characterized in that at least one hook 220 is formed in the body 100 or the base 200 is connected to the ligation line 300
6. The method of claim 5,
One side is fitted into the tube 120 of the body 100, the other side is bent in the longitudinal direction of the body 100 is extended to clip the wire (w) fitted in the groove 110 of the body 100 Wings for orthodontic bracket, characterized in that 500 is configured
The method of claim 8,
The blade 100 orthodontic bracket, characterized in that the support groove 140 is formed in the body 100 is inserted into the end of the clip 500 in the axial direction of the groove 110.
The method of claim 8,
The blade 500 orthodontic bracket, characterized in that the bent portion 510 is formed in the portion where the clip 500 is fitted to the tube 120.

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