An orthodontic self-ligating bracket and orthodontic system

Abstract

The application discloses an orthodontic self-locking bracket and an orthodontic correction system, and belongs to the technical field of tooth correction. The orthodontic self-locking bracket comprises a bracket body and a locking piece, the locking piece is in sliding connection with the top of the bracket body, an arch wire groove is horizontally formed in the top surface of the bracket body, two guide grooves are longitudinally formed in the top surface of the bracket body, the cross section of the guide groove is in L shape, the two guide grooves are symmetrically arranged left and right, the bottom surface of the locking piece extends downward to form a U-shaped blocking piece, the two sides of the U-shaped blocking piece extend outward to form limiting pieces, the limiting pieces and part of the U-shaped blocking piece are embedded into the guide grooves and are in sliding connection with the guide grooves, and the side surface of the locking piece away from the arch wire groove is a plane or a concave structure. The application further optimizes the operation convenience of the self-locking bracket and improves the sliding stability of the locking piece.

Description

Technical Field

[0001] This application relates to the field of orthodontic technology, and in particular to an orthodontic self-ligating bracket and orthodontic system. Background Technology

[0002] Orthodontic brackets are a crucial component of fixed orthodontic techniques. They are directly bonded to the tooth crown surface using adhesive, and the continuous corrective force generated by the archwire moves the teeth to the desired position, thus correcting malocclusion. In recent years, self-ligating brackets have represented a significant advancement in orthodontics. By adding a self-ligating structure to traditional brackets, the orthodontic archwire can be directly locked within the bracket's groove, eliminating the need for ligatures or elastic bands to bind the archwire and making them more convenient to use.

[0003] Most existing self-ligating brackets adopt a split design, mainly consisting of a bracket body and a sliding locking plate. The top of the bracket body has an archwire groove and a slide rail structure. The locking plate slides with the bracket body through the slide rail to open and close the archwire groove. Related prior art, such as Chinese patent application "A self-ligating bracket for orthodontic treatment," application number: 202123428238.9, discloses a bracket body and a locking plate, with the locking plate slidably connected to the top of the bracket body. The bracket body has an archwire groove, and a locking hole penetrating the bracket body is provided on one side of the archwire groove. An elastic locking tube is provided within the locking hole, and a through groove of the same length as the tube body is formed on the tube body. The bottom of the locking plate has a first locking groove and a second locking groove, which are connected by a transition groove. The centers of the first and second locking grooves are collinear with the centerline of the transition groove, and the outer diameter of the elastic locking tube is larger than the lateral width of the transition groove.

[0004] However, existing technologies have the following shortcomings in practical applications: First, the bottom of the locking plate is usually a convex arc-shaped structure, making it difficult for fingers or instruments to apply effective pushing or pulling force during clinical operations, especially in the narrow space of the oral cavity, where closing the locking plate is inconvenient and affects work efficiency. Second, the slide rail structure at the top of the bracket body mostly adopts a simple boss and groove mating form, which makes the locking plate prone to shaking or deflection during sliding, resulting in poor stability and potentially a decrease in mating accuracy with long-term use. Utility Model Content

[0005] The technical problem to be solved by this application is to provide an orthodontic self-ligating bracket and an orthodontic correction system, which further optimizes the ease of operation of the self-ligating bracket and improves the sliding stability of the locking plate.

[0006] The technical solution adopted in this application is as follows: an orthodontic self-ligating bracket, including a bracket body and a locking plate, the locking plate being slidably connected to the top of the bracket body, the top surface of the bracket body having a transverse archwire groove, the top surface of the bracket body having two longitudinal guide grooves, the cross-section of the guide grooves being L-shaped, the two guide grooves being symmetrically arranged left and right, the bottom surface of the locking plate extending downwards into a U-shaped baffle, the two sides of the U-shaped baffle extending outwards into limiting plates, the limiting plates and part of the U-shaped baffles being embedded in the guide grooves and slidably connected to the guide grooves, the side of the locking plate away from the archwire groove being a planar or concave structure.

[0007] Compared with the prior art, the advantages of this application are as follows: First, the side of the locking plate away from the archwire groove adopts a flat or concave structure, which provides a stable and clear force surface for clinical operation compared with the convex arc structure in the prior art. This makes it easier for doctors to apply pushing and pulling force to the locking plate using instruments or fingers in the narrow space of the oral cavity, thus improving the convenience and efficiency of opening and closing the locking plate.

[0008] Secondly, the guide groove of the bracket body has an L-shaped cross-section, forming a multi-directional limiting fit with the U-shaped baffle and limiting piece on the bottom surface of the locking plate: the limiting piece, embedded in the horizontal part of the L-shaped guide groove, provides vertical constraint, while the U-shaped baffle, in conjunction with the side wall of the guide groove, provides horizontal constraint, effectively preventing the locking plate from wobbling or deviating during sliding, thus improving the stability and accuracy of the locking plate's movement. The symmetrically arranged L-shaped guide grooves, in conjunction with the U-shaped baffles, provide balanced guidance support on both sides of the locking plate, making the force on the locking plate more even and the movement smoother during sliding, further enhancing the overall structural stability. The limiting piece and the horizontal part of the L-shaped guide groove form an interlocking structure, strengthening the mechanical connection between the locking plate and the bracket body, reducing loosening or decreased precision due to long-term wear, and extending the effective service life of the product.

[0009] In this application, for ease of description, the accompanying drawings are used. Figure 1 The description is based on the standard, but the product's orientation will change depending on the position of the teeth during actual use.

[0010] In some embodiments of this application, the guide groove connects the archwire groove and the outside of the bracket body; one end of the two guide grooves is connected to the archwire groove, and the other end of the two guide grooves is connected to each other and the whole is U-shaped.

[0011] Both the guide groove and the bow wire groove adopt a through structure, which facilitates the integral processing and molding of the entire support body and reduces manufacturing steps. The ends of the two guide grooves are connected to form a U-shaped structure. With the assembly of the U-shaped baffle, the structural integrity of the product in the guide groove area is enhanced, and the mechanical strength of this area is improved.

[0012] In some embodiments of this application, the side of the bracket body away from the archwire groove is a planar or concave structure that matches one side of the locking piece; when the locking piece moves to cover the archwire groove, the surface of the bracket body and the surface of the locking piece form a continuous and smooth surface.

[0013] After the locking plate is closed, the side of the bracket body matches the side of the locking plate to form a continuous and smooth overall surface, avoiding protrusions or step structures, reducing friction and irritation to the patient's oral soft tissues, and improving wearing comfort.

[0014] In some embodiments of this application, the left and right sides of the locking piece are planar or concave structures, and the left and right sides of the bracket body are planar or concave structures that match the two sides of the locking piece; when the locking piece moves to cover the bow wire groove, the left and right sides of the bracket body and the left and right sides of the locking piece form a continuous and smooth surface.

[0015] The locking clips have flat or concave structures on both sides, providing additional lateral operating points, making it easier for doctors to apply force from both sides and to unlock the clips more easily in the narrow space of the oral cavity; at the same time, they match the sides of the brackets to form a smooth surface, reducing oral irritation.

[0016] In some embodiments of this application, the top surface of the bracket body is provided with an auxiliary groove, which is arranged parallel to the bow wire groove.

[0017] The auxiliary bracket provides additional mounting positions for archwires or accessories, supports double-wire correction or auxiliary device fixation, expands the clinical corrective function of the bracket, and meets the needs of complex cases.

[0018] In some embodiments of this application, the bracket body includes a base plate and a bracket seat, and the surface of the base plate is provided with a central axis.

[0019] The central axis provides a clear visual positioning reference for doctors when bonding brackets, making it easy to quickly and accurately align the brackets with the long axis of the teeth and improving bracket positioning accuracy.

[0020] In some embodiments of this application, the bottom surface of the bracket is connected to the base plate via a connecting seat. The connecting seat is located in the middle of the bracket and divides the bottom surface of the bracket into two base surfaces. The base surfaces are inclined surfaces with inward concavity, and chamfers are provided on the left and right sides of the base surfaces.

[0021] In the use of self-ligating orthodontic brackets, chain-like rubber bands may be used for auxiliary treatment. The edges of these brackets are generally designed with right angles. When using chain-like rubber bands, the contact area between the bracket edges and the rubber band is often poor, which can easily damage the rubber band and affect the even transmission of corrective force, reducing patient comfort. This application designs a base surface with a slope and chamfered edges on both sides, allowing the chain-like rubber band to fit well against the base surface. This increases the contact area, reduces local pressure on the rubber band, avoids damage to the rubber band, and improves the evenness of corrective force transmission.

[0022] In some embodiments of this application, the top surface of the support body between the two guide grooves forms a boss, and the U-shaped baffle wraps around the outer periphery of the boss; a lock hole is provided on the boss, the lock hole penetrates the boss, an elastic locking tube is provided in the lock hole, and a lock groove is provided at the bottom of the lock piece, the lock groove is arc-shaped, and part of the elastic locking tube is inserted into the lock groove.

[0023] Preferably, the keyhole is a stepped hole.

[0024] The U-shaped baffle wraps around the outer periphery of the boss, forming a closed guide and defining the position of the locking piece. The complete fit between the U-shaped baffle and the outer peripheral surface of the boss provides physical positioning of the movement limit position and a clear indication of the closed state. The arc-shaped locking groove cooperates with the elastic locking tube to achieve reliable locking.

[0025] In some embodiments of this application, the lock groove is arranged along the guide groove; when the elastic lock tube is located at both ends of the lock groove, the lock piece is located at the extreme position of movement, and the lock piece is unlocked or locked with the bracket body.

[0026] The lock groove is arranged along the guide groove so that the locking direction of the elastic lock tube is consistent with the sliding direction of the lock plate, resulting in more reasonable force distribution. The elastic lock tube is located at both ends of the lock groove, precisely corresponding to the two extreme positions of the lock plate's unlocking and locking, realizing mechanical limitation on the range of movement of the lock plate and avoiding excessive sliding that could lead to functional failure.

[0027] An orthodontic correction system includes an archwire and a self-ligating orthodontic bracket, wherein the archwire passes through an archwire groove on the top surface of the bracket body. The archwire passing through the archwire groove cooperates with the sliding locking function of the locking clips to reliably fix and release the archwire, ensuring effective transmission of corrective force. The orthodontic correction system is simple in structure, easy to assemble, and conforms to clinical operating procedures.

[0028] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0029] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0030] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of this application. Figure 2 ; Figure 3 This is a front view of this application; Figure 4 for Figure 3 Sectional view of section AA; Figure 5 This is a schematic diagram of the structure of the bracket in this application; Figure 6 This is a schematic diagram of the locking plate in this application.

[0031] The specific explanations of the reference numerals in the attached drawings are as follows: 1. Bracket body; 2. Locking plate; 2a. Concave structure; 3. Bow wire groove; 4. Guide groove; 5. U-shaped baffle; 6. Limiting plate; 7. Auxiliary groove; 8. Base plate; 9. Bracket seat; 10. Central axis; 11. Connecting seat; 12. Base surface; 13. Chamfer; 14. Boss; 15. Lock hole; 16. Elastic locking tube; 17. Lock groove. Detailed Implementation

[0032] The present application will now be described in detail with reference to the accompanying drawings.

[0033] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0034] An orthodontic self-ligating bracket, as described in Example 1 Figures 1 to 4As shown, the device includes a bracket body 1 and a locking plate 2. The locking plate 2 is slidably connected to the top of the bracket body 1. A bowwire groove 3 is laterally formed on the top surface of the bracket body 1. Two guide grooves 4 are longitudinally formed on the top surface of the bracket body 1. The guide grooves 4 have an L-shaped cross-section and are symmetrically arranged. A U-shaped baffle 5 extends downward from the bottom surface of the locking plate 2. Limiting plates 6 extend outward from both sides of the U-shaped baffle 5. The limiting plates 6 and part of the U-shaped baffle 5 are embedded in the guide grooves 4 and slidably connected to them. The limiting plates 6 embedded in the horizontal part of the L-shaped guide groove 4 provide vertical constraint, while the U-shaped baffle 5 cooperates with the sidewall of the guide groove 4 to provide horizontal constraint. This effectively prevents the locking plate 2 from wobbling or deviating during sliding, improving the stability and accuracy of the locking plate 2's movement. The symmetrically arranged L-shaped guide grooves 4 and U-shaped baffles 5 provide balanced guidance support on both sides of the locking plate 2, making the force on the locking plate 2 more even and the movement smoother during sliding, further improving the overall structural stability. The limiting piece 6 and the horizontal part of the L-shaped guide groove 4 form an engaging structure, which enhances the mechanical connection strength between the locking piece 2 and the bracket body 1, reduces loosening of the fit or decrease in precision caused by long-term wear, and extends the effective service life of the product.

[0035] The side of the locking plate 2 away from the archwire groove 3 is a planar or concave structure 2a. Compared with the convex arc-shaped structure in the prior art, it provides a stable and clear force surface for clinical operation, making it easier for doctors to apply pushing and pulling force to the locking plate 2 using instruments or fingers in the narrow space of the oral cavity, thus improving the convenience and efficiency of opening and closing the locking plate 2.

[0036] Example 2, as Figures 1 to 6 As shown, the guide groove 4 connects the archwire groove 3 and the outer side of the support body 1; one end of each guide groove 4 is connected to the archwire groove 3, and the other ends of the two guide grooves 4 are interconnected and form a U-shape. The through-type structure of both the guide groove 4 and the archwire groove 3 facilitates the integral processing and molding of the entire support body 1, reducing manufacturing steps. The connection between the ends of the two guide grooves 4 forms a U-shaped structure, which, in conjunction with the assembly of the U-shaped baffle 5, enhances the structural integrity of the product in the guide groove 4 area and improves the mechanical strength of this area.

[0037] The side of the bracket 1 away from the archwire groove 3 is a flat or concave structure that matches one side of the locking piece 2. When the locking piece 2 moves to cover the archwire groove 3, the surface of the bracket 1 and the surface of the locking piece 2 form a continuous and smooth surface. After the locking piece 2 is closed, the side of the bracket 1 and the side of the locking piece 2 match to form a continuous and smooth overall surface, avoiding the protrusion 14 or step structure, reducing friction and irritation to the patient's oral soft tissues, and improving wearing comfort.

[0038] The left and right sides of the locking piece 2 are either flat or concave, and the left and right sides of the bracket body 1 are also flat or concave, matching the sides of the locking piece 2. When the locking piece 2 moves to cover the archwire groove 3, the left and right sides of the bracket body 1 and the left and right sides of the locking piece 2 form a continuous, smooth surface. The flat or concave structure of the sides of the locking piece 2 provides additional lateral operating force points, making it easier for doctors to apply force from both sides and to perform unlocking operations more easily in the narrow space of the oral cavity; at the same time, it matches the sides of the bracket body 1 to form an integral smooth surface, reducing oral irritation.

[0039] The bracket body 1 has a transverse auxiliary groove 7 on its top surface, which is parallel to the archwire groove 3. The auxiliary groove 7 provides an additional mounting position for the archwire or accessories, supports double-wire correction or fixation of auxiliary devices, expands the clinical orthodontic function of the bracket, and meets the needs of complex cases.

[0040] The bracket body 1 includes a base plate 8 and a bracket seat 9. A central axis 10 is provided on the surface of the base plate 8. The central axis 10 provides a clear visual positioning reference for the doctor when bonding the bracket, which facilitates quick and accurate alignment of the bracket with the long axis of the tooth and improves the positioning accuracy of the bracket.

[0041] The bottom surface of the bracket 9 is connected to the base plate 8 through the connecting seat 11. The connecting seat 11 is located in the middle of the bracket 9 and divides the bottom surface of the bracket 9 into two base surfaces 12. The base surface 12 is an inclined surface with an inner concave side, and chamfers 13 are provided on the left and right sides of the base surface 12.

[0042] In the use of orthodontic self-ligating brackets, chain-like rubber bands may be used for auxiliary treatment. The edges of the bracket base 9 are generally designed with right angles. When using chain-like rubber bands for auxiliary treatment, the contact area between the corners of the bracket body 1 and the rubber band is poor, which not only easily damages the rubber band but may also affect the uniform transmission of corrective force, reducing patient comfort. This application designs the base surface 12 as an inclined surface, with chamfered corners 13 on both sides, allowing the chain-like rubber band to fit well against the base surface 12, increasing the contact area, reducing local pressure on the rubber band, avoiding damage to the rubber band, and improving the uniformity of corrective force transmission.

[0043] The top surface of the support body 1 between the two guide grooves 4 forms a boss 14, and the U-shaped baffle 5 wraps around the outer periphery of the boss 14. A locking hole 15 is provided on the boss 14, penetrating the boss 14. An elastic locking tube 16 is provided inside the locking hole 15. A locking groove 17 is provided at the bottom of the locking piece 2. The locking groove 17 is arc-shaped, and part of the elastic locking tube 16 is inserted into the locking groove 17. Preferably, the locking hole 15 is a stepped hole. The U-shaped baffle 5 wraps around the outer periphery of the boss 14 to form a closed guide, limiting the position of the locking piece 2. The complete fit between the U-shaped baffle 5 and the outer peripheral surface of the boss 14 serves as the physical positioning of the movement limit position, providing a clear indication of the closed state. The arc-shaped locking groove 17 cooperates with the elastic locking tube 16 to achieve reliable locking.

[0044] The locking groove 17 is arranged along the guide groove 4. When the elastic locking tube 16 is located at both ends of the locking groove 17, the locking piece 2 is at its extreme position, and the locking piece 2 is unlocked or locked with the bracket body 1. The locking groove 17 is arranged along the guide groove 4 so that the locking direction of the elastic locking tube 16 is consistent with the sliding direction of the locking piece 2, resulting in more reasonable force distribution. The elastic locking tube 16 is located at both ends of the locking groove 17, precisely corresponding to the two extreme positions of unlocking and locking of the locking piece 2, realizing mechanical limitation of the movement range of the locking piece 2 and avoiding excessive sliding that could lead to functional failure.

[0045] The rest of the contents of Example 2 are the same as those of Example 1.

[0046] An orthodontic correction system, embodiment three, includes an archwire and orthodontic self-ligating brackets as described in embodiment one or two. The archwire passes through an archwire groove 3 on the top surface of the bracket body 1. The archwire passing through the archwire groove 3 on the top surface of the bracket body 1 cooperates with the sliding locking function of the locking clips 2 to achieve reliable fixation and release of the archwire, ensuring effective transmission of corrective force. The orthodontic correction system has a simple structure, is easy to assemble, and conforms to clinical operating procedures.

[0047] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. An orthodontic self-ligating bracket, characterized in that, The device includes a bracket body (1) and a locking piece (2). The locking piece (2) is slidably connected to the top of the bracket body (1). The top surface of the bracket body (1) is provided with a bow wire groove (3) in the horizontal direction. The top surface of the bracket body (1) is provided with two guide grooves (4) in the vertical direction. The cross-section of the guide groove (4) is L-shaped. The two guide grooves (4) are symmetrically arranged on the left and right. The bottom surface of the locking piece (2) extends downward to form a U-shaped baffle (5). The two sides of the U-shaped baffle (5) extend outward to form limiting pieces (6). The limiting pieces (6) and part of the U-shaped baffle (5) are embedded in the guide groove (4) and slidably connected to the guide groove (4). The side of the locking piece (2) away from the bow wire groove (3) is a planar or concave structure (2a).

2. The orthodontic self-ligating bracket according to claim 1, characterized in that, The guide groove (4) connects the bow wire groove (3) and the outside of the bracket body (1); one end of the two guide grooves (4) is connected to the bow wire groove (3), and the other end of the two guide grooves (4) is connected to each other and the whole is U-shaped.

3. The orthodontic self-ligating bracket according to claim 1, characterized in that, The side of the bracket (1) away from the bow wire groove (3) is a flat or concave structure that matches one side of the locking piece (2); when the locking piece (2) moves to cover the bow wire groove (3), the surface of the bracket (1) and the surface of the locking piece (2) form a continuous and smooth surface.

4. The orthodontic self-ligating bracket according to claim 1, characterized in that, The left and right sides of the locking plate (2) are planar or concave structures, and the left and right sides of the bracket body (1) are planar or concave structures that match the two sides of the locking plate (2); when the locking plate (2) moves to cover the bow wire groove (3), the left and right sides of the bracket body (1) and the left and right sides of the locking plate (2) form a continuous and smooth surface.

5. The orthodontic self-ligating bracket according to claim 1, characterized in that, The top surface of the bracket body (1) is provided with an auxiliary groove (7), which is parallel to the bow wire groove (3).

6. The orthodontic self-ligating bracket according to claim 1, characterized in that, The bracket body (1) includes a base plate (8) and a bracket seat (9), and a central axis (10) is provided on the surface of the base plate (8).

7. An orthodontic self-ligating bracket according to claim 6, characterized in that, The bottom surface of the bracket (9) is connected to the base plate (8) through the connecting seat (11). The connecting seat (11) is located in the middle of the bracket (9) and divides the bottom surface of the bracket (9) into two base surfaces (12). The base surface (12) is an inclined surface with an inner recess. The left and right sides of the base surface (12) are provided with chamfers (13).

8. The orthodontic self-ligating bracket according to claim 1, characterized in that, The top surface of the support body (1) between the two guide grooves (4) forms a boss (14), and the U-shaped baffle (5) wraps around the outer periphery of the boss (14); a lock hole (15) is provided on the boss (14), the lock hole (15) penetrates the boss (14), an elastic locking tube (16) is provided in the lock hole (15), and a lock groove (17) is provided at the bottom of the lock piece (2), the lock groove (17) is arc-shaped, and part of the elastic locking tube (16) is inserted into the lock groove (17).

9. An orthodontic self-ligating bracket according to claim 8, characterized in that, The lock groove (17) is set along the guide groove (4); when the elastic lock tube (16) is located at both ends of the lock groove (17), the lock piece (2) is located at the extreme position of movement, and the lock piece (2) is unlocked or locked with the bracket body (1).

10. An orthodontic correction system, characterized in that, Includes an archwire and an orthodontic self-ligating bracket according to any one of claims 1-9, wherein the archwire passes through an archwire groove (3) on the top surface of the bracket body (1).

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