Orthodontic bracket

Abstract

The utility model discloses an orthodontic bracket. The orthodontic bracket comprises a bracket body, a bracket bottom and an arch wire, the bracket body comprises a groove. And the bracket bottom is connected with the bracket body. And the arch wire is arranged in the groove. The projection in the direction perpendicular to the width direction of the orthodontic bracket is a projection plane, the projection of the groove on the projection plane is a first projection plane, the length of the uppermost end of the first projection plane is larger than that of the lowermost end of the first projection plane, and when the arch wire is connected with the groove, the arch wire is arranged close to the lowermost end of the groove. Through the arrangement, the contact area of the arch wire and the groove can be reduced, so that the friction force of the arch wire and the groove is reduced, the time required for adjusting the front-back relation of the teeth and adjusting the aesthetic orthodontic points of the teeth in the second stage is shorter, and the orthodontic correction efficiency of the teeth is further improved.

Description

Technical Field

[0001] This application relates to the field of medical devices, and in particular, to an orthodontic bracket. Background Art

[0002] During the process of orthodontic treatment for tooth deformities, an arch wire needs to be placed in the slot of the orthodontic bracket so that the arch wire can traction the teeth through the bracket body, enabling the teeth to move to their normal physiological positions.

[0003] The arch wire traction of teeth is divided into four stages. The second stage is mainly used to adjust the anteroposterior position relationship of the teeth, and while adjusting the anteroposterior relationship of the teeth, the aesthetic orthodontic points such as the position of the anterior teeth, the smile line, and the position relationship of the side nose-lip-chin are adjusted according to orthodontic needs.

[0004] However, in the prior art, due to the large contact area between the slot and the arch wire, the friction is large when the arch wire is connected to the slot. Therefore, the holding time in the second stage of the arch wire traction of teeth is relatively long, resulting in a long process of orthodontic treatment for teeth. Utility Model Content

[0005] To solve the deficiencies of the prior art, the purpose of this application is to provide an orthodontic bracket with less friction between the arch wire and the slot.

[0006] To achieve the above purpose, this application adopts the following technical solutions:

[0007] An orthodontic bracket, which includes a bracket body, a bracket base, and an arch wire. The bracket body includes a slot. The bracket base is connected to the bracket body. The arch wire is arranged in the slot. The projection along the direction perpendicular to the width of the orthodontic bracket is the projection plane. The projection of the slot on the projection plane is the first projection surface. The length of the uppermost end on the first projection surface is greater than the length of the lowermost end on the first projection surface. When the arch wire is connected to the slot, the arch wire is arranged close to the lowermost end of the slot.

[0008] Further, the length of the uppermost end of the first projection surface is the first length, the length of the lowermost end of the first projection surface is the second length, and the ratio of the first length to the second length is greater than or equal to 0.9 and less than or equal to 1.8.

[0009] Further, the ratio of the first length to the second length is greater than or equal to 1.1 and less than or equal to 1.6.

[0010] Further, the projection of the bracket base on the projection plane is the second projection surface, and the length of the uppermost end of the second projection surface is greater than the length of the lowermost end of the second projection surface.

[0011] Further, the length of the uppermost end of the second projection surface is the third length, and the ratio of the first length to the third length is greater than or equal to 0.5 and less than or equal to 1.

[0012] Further, the ratio of the first length to the third length is greater than or equal to 0.6 and less than or equal to 0.9.

[0013] Further, the length of the lowermost end of the second projection plane is the fourth length, and the ratio of the second length to the fourth length is greater than or equal to 1.2 and less than or equal to 2.2.

[0014] Further, the bracket body and the bracket base are integrally formed by numerical control machining.

[0015] The orthodontic bracket provided by the present application can reduce the contact area between the arch wire and the slot groove, thereby reducing the friction between the arch wire and the slot groove, so that the time required for adjusting the anteroposterior relationship of the teeth and the aesthetic orthodontic points of the teeth in the second stage is shorter, and thus the efficiency of orthodontic correction of the teeth is improved. Description of the Drawings

[0016] Figure 1 It is a partial structural schematic diagram of the orthodontic bracket of the present application

[0017] Figure 2 It is a left view of the orthodontic bracket of the present application.

[0018] Figure 3 It is a projection view of the orthodontic bracket of the present application on the projection plane. Detailed Embodiments

[0019] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the specific embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0020] As Figure 1 shown, an orthodontic bracket, the orthodontic bracket 100 includes a bracket body 11, a bracket base 12 and an arch wire 13. The bracket body 11 is used to fix the arch wire 13, and the bracket base 12 is used to adhere to the tooth surface. The bracket body 11 and the bracket base 12 are connected. The bracket body 11 includes a slot groove 111, and the arch wire 13 at least partially passes through the slot groove 111, so that the arch wire 13 can connect two adjacent bracket bodies 11 through the slot groove 111, so that the teeth can gradually change their positions under the continuous and gentle action of the arch wire 13, so that the teeth are displaced to a preset position, and thus the purpose of orthodontic correction of the teeth is achieved. It should be noted that the preset position refers to the normal physiological position of the teeth. It should be noted in the present application that the width direction of the orthodontic bracket 100 refers to the left-right direction as Figure 1 shown, the length direction of the orthodontic bracket 100 refers to the front-back direction as Figure 1 shown, and the height direction of the orthodontic bracket 100 refers to the up-down direction as Figure 1 shown.

[0021] As Figure 1and Figure 2 As shown, specifically, the projection plane perpendicular to the width direction of the orthodontic bracket 100 is the projection plane 101. The projection of the slot 111 on the projection plane 101 is the first projection surface, and the length of the uppermost end on the first projection surface is greater than the length of the lowermost end on the first projection surface. When the arch wire 13 is connected to the slot 111, the arch wire 13 is arranged close to the lowermost end of the slot 111. The projection of the slot 111 on the projection plane 101 is a structure with a wider upper part and a narrower lower part, so that the shape of the slot 111 on the projection plane 101 is basically any one of a triangle, a trapezoid, and a teardrop shape. Through the above settings, since the arch wire 13 is arranged close to the lowermost end of the slot 111, and the length of the lowermost end of the slot 111 is less than the length of the uppermost end of the slot 111, the contact area between the arch wire 13 and the slot 111 can be reduced, thereby reducing the friction between the arch wire 13 and the slot 111, so that the time required for the second-stage adjustment of the anterior-posterior relationship of the teeth and the adjustment of the aesthetic orthodontic points of the teeth is shorter, and thus the efficiency of orthodontic correction of the teeth is improved. In addition, since the lowermost end of the slot 111 is narrowed, the distance between the contact points of two adjacent slots 111 and the arch wire 13 becomes longer, so that the arch wire 13 can be prevented from being bent and deformed too much, resulting in the arch wire 13 being unable to pull the teeth to the preset position, and thus the effect of the orthodontic bracket 100 in correcting the teeth is improved. It should be noted that before the arch wire 13 is connected to the orthodontic bracket 100, the operator needs to bend the arch wire 13 to a preset angle. When the arch wire 13 is connected to the bracket body 11, the arch wire 13 needs to be placed in the slot 111. Due to the actual situation of the tooth arrangement being different, the arch wire 13 needs to have a certain amount of deformation before the operator can place the arch wire 13 into the slot 111. The shorter the distance between adjacent slots 111, the greater the degree of deformation of the arch wire 13, and the longer the distance between adjacent slots 111, the smaller the degree of deformation of the arch wire 13. Among them, the preset angle refers to the angle at which the operator bends the arch wire 13 according to the actual arrangement order of the teeth, so that the arch wire 13 can pull the teeth to the normal physiological position.

[0022] As Figure 1 , Figure 2 and Figure 3As shown, specifically, the length of the uppermost end of the first projection plane is the first length L1, the length of the lowermost end of the first projection plane is the second length L2, and the ratio of the first length L1 to the second length L2 is greater than or equal to 0.9 and less than or equal to 1.8. More specifically, the ratio of the first length L1 to the second length L2 is greater than or equal to 1.1 and less than or equal to 1.6. In this embodiment, the ratio of the first length L1 to the second length L2 is greater than or equal to 1.2 and less than or equal to 1.5. Through the above settings, it is possible to prevent the ratio of the first length L1 to the second length L2 from being too large, resulting in the inability to fix the arch wire 13 in the groove 111, thereby improving the connection stability between the arch wire 13 and the groove 111; it is also possible to prevent the ratio of the first length L1 to the second length L2 from being too small, resulting in an increase in the contact area between the arch wire 13 and the groove 111, thereby avoiding an increase in the friction force between the arch wire 13 and the groove 111, reducing the friction force between the arch wire 13 and the groove 111, making the time required for the second stage to adjust the anteroposterior relationship of the teeth and the aesthetic orthodontic points of the teeth shorter, and thus improving the efficiency of the orthodontic correction process.

[0023] As an implementation manner, the projection of the bracket base 12 on the projection plane 101 is the second projection plane, and the length of the uppermost end of the second projection plane is greater than the length of the lowermost end of the second projection plane. Through the above settings, it is possible to cooperate with the structure of the groove 111 that is wider at the top and narrower at the bottom, thereby improving the integrity of the orthodontic bracket 100. In addition, the structural compactness of the orthodontic bracket 100 is also improved, and the structure of the bracket base 12 that is wider at the top and narrower at the bottom can also reduce the weight of the orthodontic bracket 100, and thus the orthodontic bracket 100 is set to be lightweight.

[0024] Specifically, the length of the uppermost end of the second projection plane is the third length L3, and the ratio of the first length L1 to the third length L3 is greater than or equal to 0.5 and less than or equal to 1. More specifically, the length of the uppermost end of the second projection plane is the third length L3, and the ratio of the first length L1 to the third length L3 is greater than or equal to 0.6 and less than or equal to 0.9. In this embodiment, the length of the uppermost end of the second projection plane is the third length L3, and the ratio of the first length L1 to the third length L3 is greater than or equal to 0.7 and less than or equal to 0.81. Through the above settings, it is possible to prevent the ratio of the first length L1 to the third length L3 from being too large, resulting in the groove 111 protruding from the bracket base 12, avoiding low integrity of the orthodontic bracket 100, and thus improving the integrity of the orthodontic bracket 100; it is also possible to prevent the ratio of the first length L1 to the third length L3 from being too small, resulting in an overly large bracket base 12 and avoiding an overly large mass of the bracket base 12, thereby reducing the mass of the orthodontic bracket 100 and making the orthodontic bracket 100 lightweight.

[0025] As an implementation, the length of the lowermost end of the second projection plane is the fourth length L4, and the ratio of the second length L2 to the fourth length L4 is greater than or equal to 1.2 and less than or equal to 2.2. Specifically, the ratio of the second length L2 to the fourth length L4 is greater than or equal to 1.3 and less than or equal to 2. More specifically, the ratio of the second length L2 to the fourth length L4 is greater than or equal to 1.5 and less than or equal to 1.8. Through the above settings, it is possible to prevent the ratio of the second length L2 to the fourth length L4 from being too large, which may cause the groove 111 to protrude from the bracket base 12, and avoid the situation where the arch wire 13 cannot transmit sufficient traction force to the tooth through the bracket base 12 when the arch wire 13 is connected to the groove 111, thereby improving the traction efficiency of the arch wire 13 on the tooth. It can also prevent the ratio of the second length L2 to the fourth length L4 from being too small, which may cause the bracket base 12 to be too large, and avoid the reduction of the structural compactness of the orthodontic bracket 100, thereby improving the structural compactness of the orthodontic bracket 100.

[0026] As an implementation, the bracket body 11 and the bracket base 12 are integrally formed by numerical control machining. Through the above settings, when the orthodontic bracket 100 is placed in the oral cavity, it is possible to prevent the separation of the bracket body 11 and the bracket base 12, which may cause the operator to need to replace the orthodontic bracket 100 again, avoid increasing the workload of the operator and the duration of the arch wire 13 for traction of the tooth, thereby improving the efficiency of orthodontic correction of the tooth. In addition, the separation of the bracket body 11 and the bracket base 12 in the oral cavity may cause the orthodontist to accidentally ingest the bracket body 11 and / or the bracket base 12, thereby improving the safety of the orthodontist.

[0027] It should be understood that for those of ordinary skill in the art, improvements or transformations can be made according to the above description, and all such improvements and transformations shall fall within the protection scope of the appended claims of this application.

Claims

1. An orthodontic bracket, comprising: A bracket body, the bracket body comprising a groove; A bracket bottom connected to the bracket body; an archwire disposed in the groove; It is characterized in that The projection along the direction perpendicular to the width of the orthodontic bracket is a projection plane, the projection of the groove on the projection plane is a first projection plane, the length of the uppermost end on the first projection plane is greater than the length of the lowermost end on the first projection plane, and when the arch wire is connected to the groove, the arch wire is arranged close to the lowermost end of the groove.

2. The orthodontic bracket according to claim 1, characterized in that: The length of the uppermost end of the first projection surface is a first length, the length of the lowermost end of the first projection surface is a second length, and the ratio of the first length to the second length is greater than or equal to 0.9 and less than or equal to 1.

8.

3. The orthodontic bracket according to claim 2, characterized in that: The ratio of the first length to the second length is greater than or equal to 1.1 and less than or equal to 1.

6.

4. The orthodontic bracket according to claim 2, characterized in that: The projection of the bracket bottom on the projection plane is a second projection plane, and the length of the uppermost end of the second projection plane is greater than the length of the lowermost end of the second projection plane.

5. The orthodontic bracket according to claim 4, characterized in that: The length of the uppermost end of the second projection surface is a third length, and a ratio of the first length to the third length is greater than or equal to 0.5 and less than or equal to 1.

6. The orthodontic bracket according to claim 5, characterized in that: A ratio of the first length to the third length is greater than or equal to 0.6 and less than or equal to 0.

9.

7. The orthodontic bracket according to claim 4, characterized in that: The length of the lowermost end of the second projection surface is a fourth length, and a ratio of the second length to the fourth length is greater than or equal to 1.2 and less than or equal to 2.

2.

8. The orthodontic bracket according to claim 1, characterized in that: The bracket body and the bracket bottom are integrally formed by numerical control machining.

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