CN101700198B - Friction force controllable bracket - Google Patents

Abstract

The invention discloses a friction controllable bracket, which comprises a base plate and two bracket bodies opposite to the base plate, an archwire groove is formed between the two bracket bodies, and the bracket body The two ends of the arch wire groove are respectively provided with protruding wings and laterally raised lateral wings, the two

The wings are located on the inside of the two lateral wings and extend out of the bracket body in the opposite direction to the archwire groove. The present invention changes the positive pressure of the ligation on the archwire by selecting different parts of the ligation, so as to achieve the function of adjusting the friction force. ①It can only be used as

Wing ligation can make the positive pressure zero, reduce frictional resistance, accelerate tooth movement and reduce tissue damage, and play a role similar to self-ligating brackets; The friction force selectively controls the movement of individual teeth; ③ through unilateral

Ligation of the wings to the lateral wings can correct tooth twists and precisely adjust the position of individual teeth.

Description

Friction Controlled Brackets

technical field

The invention relates to a bracket appliance, in particular to a friction-controllable bracket with flexible ligation.

Background technique

Dental friction controllable brackets are an important part of orthodontic fixed appliances. The clinical orthodontic bracket consists of a fixed base plate and a bracket body. The bracket body has an archwire groove and a ligature wing. The base plate is fixed on the tooth surface. The archwire passes through the archwire groove and passes through the The ligature wings are fixed to the brackets, and the orthodontic force of the arch wire is transmitted to the teeth through the brackets during the orthodontic treatment of the dentition, so that the teeth can move as expected.

Friction-controlled brackets have been widely used since the direct bonding technology of brackets was applied to orthodontics in the 1950s. The traditional friction-controllable brackets have high friction with the arch wire when moving, and the moving speed is slow, and the correction time and chairside operation time are long. Therefore, a self-locking bracket appliance has been adopted in the prior art, and a deck and a bracket cover matching the deck are provided on both sides of the arch wire groove. Just press the bracket cover directly to limit the arch wire in the arch wire groove, eliminating the cumbersome operation of ligating the wire; at the same time, it avoids direct force on the arch wire, reducing contact friction, which is beneficial to The normal movement of teeth.

But the self-locking bracket appliance of above-mentioned structure has the following deficiencies: one, although the frictional force reduces, but has brought the problem that is difficult to control tooth position; Sometimes it is still necessary to use the ligature wire to ligate the arch wire in the mesial or far of the bracket through the vertical groove to correct and prevent the inclination and rotation of the teeth. The torque angle will be lost, and sometimes necessary compensation must be done on the arch wire; 3. It is inconvenient to replace the chain elastic ring, and the self-locking bracket elastic ring must be installed before the arch wire is in place, not the arch wire After being in place, the arch wire must be removed when replacing the chain elastic ring, which will bring inconvenience to clinical operations; 4. It is difficult to achieve complete alignment; 5. Due to the low friction, the arch wire is easy Slip in the ditch.

Contents of the invention

Aiming at the deficiencies in the prior art, the present invention provides a friction-controllable bracket with convenient operation and flexible control. The bracket can change the positive effect of the ligature wire or the ligature ring on the arch wire through the selection of the ligature method. Pressure, so as to achieve the effect of adjusting the friction force, which can make the positive pressure zero, thereby reducing the friction force of the system, accelerating the movement of teeth and reducing tissue damage; it can also increase the friction force between individual teeth and archwires through tight ligation Selectively control the movement of individual teeth, precisely adjust the position of individual teeth and facilitate the correction of tooth torsion, etc.

龈翼和向侧方凸起的侧方翼，所述两个

龈翼位于两个侧方翼的内侧且与弓丝槽沟相反方向延伸出托槽体。The friction controllable bracket provided by the present invention includes a base plate and two bracket bodies fixedly arranged on the base plate opposite each other, an arch wire groove is formed between the two bracket bodies, and the bracket body The two ends of the arch wire groove are respectively provided with protruding

The gingival wing and the laterally convex lateral wing, the two

The gingival wing is located on the inner side of the two lateral wings and extends out of the bracket body in the opposite direction to the archwire groove.

龈翼与侧方翼间设置结扎沟；Further, the

A ligation groove is set between the gingival wing and the lateral wing;

龈翼沿与基底板平行的方向伸出托槽体；Further, the

The gingiva sticks out of the bracket body in a direction parallel to the base plate;

Further, the side wings extend out of the bracket body in a direction parallel to the base plate;

龈翼之间形成单侧结扎槽；Further, the two brackets on the bracket body

A unilateral ligation groove is formed between the gingival wings;

Further, the distance between the ligation groove and the unilateral ligation groove from the bottom of the archwire groove is equal;

Further, the distance between the ligation groove and the unilateral ligation groove from the bottom of the archwire groove is 0.025 inches to 0.030 inches;

龈翼和侧方翼的伸出端为圆弧过渡。Further, the

The protruding end of the gingival wing and the lateral wing is a circular arc transition.

龈翼时，结扎丝与弓丝脱离接触，无正压力，此时，结扎丝与弓丝之间摩擦力减小，利于牙齿移动及降低组织损伤；结扎侧方翼时，结扎丝与弓丝之间有正压力，通过紧结扎，增加结扎丝与弓丝之间的摩擦力，具有稳定该牙齿，减少其移动，增强支抗；结扎单侧的龈翼，利于牙齿扭转的改正。该托槽通过结扎方式的选择，改变结扎丝或结扎圈对弓丝的正压力，从而达到调节摩擦力的作用，既可以使正压力为零，减小系统的摩擦力，加速牙齿的移动，起到类似自锁托槽的作用；也可以通过紧结扎增大个别牙齿与弓丝的摩擦力选择性的控制个别牙的移动，精确调整个别牙的位置。Beneficial effects of the present invention: a friction controllable bracket of the present invention adopts two ends of the bracket body respectively provided with protruding parts opposite to the archwire groove. Gingival wing and laterally raised lateral wing, two The gingival wing is located between the two lateral wings and extends out of the bracket body in the opposite direction to the archwire groove. The friction controllable bracket is easy to operate, flexible to control, and

When ligating the gingival wing, the ligature wire is out of contact with the arch wire, and there is no positive pressure. At this time, the friction between the ligature wire and the arch wire is reduced, which is beneficial to tooth movement and reduces tissue damage; when ligating the lateral wing, the ligature wire and the arch wire There is a positive pressure between them, through tight ligation, the friction between the ligation wire and the arch wire is increased, which can stabilize the tooth, reduce its movement, and enhance anchorage; unilateral ligation Gingival wing, which is conducive to the correction of tooth twist. Through the selection of the ligation method, the bracket can change the positive pressure of the ligation wire or the ligation ring on the arch wire, so as to achieve the effect of adjusting the friction force, which can make the positive pressure zero, reduce the friction force of the system, and accelerate the movement of the teeth. It plays a role similar to self-ligating brackets; it can also selectively control the movement of individual teeth by increasing the friction between individual teeth and the arch wire through tight ligation, and precisely adjust the position of individual teeth.

Description of drawings

Fig. 1 is the structural representation of the present invention in use state one;

Fig. 2 is a schematic structural diagram of the present invention in use state two;

Fig. 3 is a structural schematic diagram of the present invention in use state three;

Fig. 4 is a schematic structural diagram of the present invention in use state four.

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

龈翼4位于两个侧方翼5的内侧且沿与底板1平行的方向向外延伸出托槽体2；侧方翼5沿与底板1平行的方向向外延伸出托槽体2；在龈翼4与侧方翼5之间形成结扎沟6；在各个托槽体2上的两个

龈翼4之间形成单侧结扎槽7。Fig. 1 is a structural schematic diagram of the present invention in use state 1, as shown in the figure, a friction controllable bracket includes a base plate 1 and two bracket bodies 2 fixedly arranged on the base plate 1 in parallel and facing each other; An archwire groove 3 at a certain angle to the bottom plate 1 is formed between the two bracket bodies 2; Gingival wing 4 and laterally raised lateral wing 5; two

The gingival wing 4 is located on the inner side of the two side wings 5 and extends out of the bracket body 2 along a direction parallel to the base plate 1; the side wing 5 extends out of the bracket body 2 along a direction parallel to the base plate 1; A ligature groove 6 is formed between the gingival wing 4 and the lateral wing 5; two grooves on each bracket body 2

A unilateral ligation groove 7 is formed between the gingival wings 4 .

龈翼4上时，弓丝在弓丝槽沟3内滑动过大，不利于牙齿精确位置控制；若距离过小，结扎丝8结扎在

龈翼4上时，移动牙齿，结扎丝8与弓丝之间易产生摩擦力，降低牙齿移动的速度。The distance between the ligation groove 6 and the unilateral ligation groove 7 and the bottom of the archwire groove 3 is equal, and the distance is 0.025 inches to 0.030 inches. If the distance is too large, the ligature silk 8 is ligated at

When the gingival wing 4 is on, the arch wire slides too far in the arch wire groove 3, which is not conducive to the precise position control of the teeth; if the distance is too small, the ligature wire 8 is ligated on

When the gingival wing 4 is on, the teeth are moved, and friction is easily generated between the ligature wire 8 and the arch wire, which reduces the speed of tooth movement.

龈翼4和侧方翼5的伸出端为圆弧过渡，使病人在治疗和使用过程中，可避免划伤嘴唇，提高病人的舒适度。

The protruding ends of the gingival wings 4 and the lateral wings 5 are arc transitions, so that the patient can avoid scratching the lips during treatment and use, and improve the patient's comfort.

龈翼上时，如附图1所示，结扎丝8与弓丝脱离接触，无正压力，减小牙齿移动的阻力，加速牙齿的移动，起到类似自锁托槽的作用，利于牙齿移动。ligature silk ligature

When the gingival wing is on, as shown in Figure 1, the ligature wire 8 is out of contact with the arch wire, and there is no positive pressure, which reduces the resistance of the tooth movement, accelerates the movement of the tooth, and acts like a self-locking bracket, which is beneficial to the movement of the tooth .

Fig. 2 is a schematic diagram of the structure of the present invention in use state 2. As shown in the figure, when the ligature wire is used to ligate the side wings, there is a positive pressure between the ligature wire and the arch wire, and the tight ligature increases the distance between the ligature wire and the arch wire. The friction force between them can effectively stabilize the tooth, reduce its movement and enhance the anchorage.

龈翼和侧方翼上时，利于改变扭转而牙齿不移位，提高固定和矫正的效果。Fig. 3 is a schematic structural view of the present invention in use state three, as shown in the figure, the ligature wire is ligated on one side

When the gingival and lateral wings are on, it is beneficial to change the twist without shifting the teeth, improving the effect of fixation and correction.

龈翼上时，摩擦力要小一些，更有利于牙齿的移动和排齐。Fig. 4 is a schematic structural view of the present invention in use state four, as shown in the figure, the ligature wire ligatures one side

When the gingiva is on the wing, the friction force is smaller, which is more conducive to the movement and alignment of the teeth.

Therefore, through the selection of the ligation method, the bracket can change the positive pressure of the ligation wire or the ligation ring on the arch wire, so as to adjust the friction force. It can not only make the positive pressure zero, thereby reducing the friction between the ligation wire and the arch wire, reduce the resistance of the tooth movement, and accelerate the tooth movement; it can also increase the friction between individual teeth and the arch wire by tightening the ligation. Selective control The movement of individual teeth precisely adjusts the position of individual teeth. The friction-controllable bracket ligation method is flexible, the correction time and the doctor's chairside operation time are shortened, and the operation is convenient, so it is a bracket worthy of popularization and application.

Finally, it is noted that the above embodiments are only used to illustrate the technical solutions of the present invention without limitation. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be carried out Modifications or equivalent replacements without departing from the spirit and scope of the technical solution of the present invention shall be covered by the claims of the present invention.

Claims (1)

1. A friction controllable bracket, comprising a base plate (1) and two bracket bodies (2) fixedly arranged on the base plate (1) opposite, the two bracket bodies (2) An arch wire groove (3) is formed between them, and it is characterized in that: the two ends of the bracket body (2) are respectively provided with protruding holes in the opposite direction to the arch wire groove (3).

The gingiva (4) and the lateral wing (5) protruding laterally, the two

The gingival wing (4) is located on the inner side of the two lateral wings (5) and extends out of the bracket body (2) in the opposite direction to the archwire groove (3);

A ligation groove (6) is set between the gingival wing (4) and the lateral wing (5);

The gingival wing (4) extends out of the bracket body (2) along a direction parallel to the base plate (1); the lateral wing (5) extends out of the bracket body along a direction parallel to the base plate (1) ( 2); two on the bracket body (2) A unilateral ligation groove (7) is formed between the gingival wings (4); the distance between the ligation groove (6) and the unilateral ligation groove (7) from the bottom of the archwire groove (3) is 0.030 inches; the The protruding ends of the gingival wing (4) and the lateral wing (5) are arc transitions.

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