A double-lock orthodontic appliance and orthodontic system

Abstract

This utility model discloses a double-locking orthodontic appliance, including a bracket body, locking plates, and locking components. The bracket body has a mounting platform on one side of its top, and a stop position corresponding to one end of the mounting platform on the top of the bracket body. An archwire groove is provided between the bracket body and the mounting platform corresponding to the stop position. Locking components are arranged in pairs on the mounting platform, with each component slidingly engaging with a groove on the bottom surface of the locking plate. This utility model solves the problem of self-ligating failure caused by wear of a single locking track in existing appliances through its double-locking design. Furthermore, the semi-solid elastic locking component structure solves the problem of self-ligating failure even after wear of the hollow tube assembly, as the deformation of the internal solid rod can still resolve the issue. It can be widely applied in the field of orthodontic appliances and has high practical value.

Description

Technical Field

[0001] This utility model relates to the field of dental orthodontics, specifically to a double-locking dental appliance and dental orthodontic system. Background Technology

[0002] Brackets are orthodontic appliances used in orthodontic treatment, primarily by orthodontists. Currently, various types of self-ligating brackets are widely used in clinical practice, greatly simplifying archwire locking for dentists. Self-ligating brackets have become a market trend in orthodontics, offering comprehensive specifications and increasingly becoming a mid-to-high-end product.

[0003] Self-ligating brackets typically consist of a mesh base for bonding, a bracket body located on the mesh base, locking tabs movably mounted on the bracket body, and a locking structure between the locking tabs and the bracket body support. Self-ligating brackets rely on the locking structure to hold the locking tabs in specific positions, particularly the closed position where the tabs enclose the archwire groove. In actual use, the archwire within the archwire groove exerts forces on the bracket body and locking tabs in various dimensions. Foreign objects during eating can affect the self-ligating brackets, and repeated opening and closing of the locking tabs during follow-up appointments can lead to problems such as loose locking, falling off, self-ligating failure, and plastic deformation of the locking mechanism under impact from foreign objects.

[0004] Although the market is constantly iterating on self-locking bracket structures, the aforementioned problems still exist, so there is still considerable room for improvement. Utility Model Content

[0005] In view of the deficiencies in the existing technology, the purpose of this utility model is to provide a double-locking orthodontic appliance with a more stable self-locking structure, which ensures that the orthodontic structure can be used stably for a long time.

[0006] The technical solution adopted in this utility model is as follows: a double-locking orthodontic appliance, comprising a bracket body, locking plates, and locking elements; a mounting platform is provided on one side of the top of the bracket body, and a stop position is provided at one end of the top of the bracket body corresponding to the mounting platform; an archwire groove is provided between the bracket body and the mounting platform corresponding to the stop position; the locking plate is slidably engaged with the mounting platform, and the locking plate can slide to a position that abuts or separates from the stop position, so that the archwire groove opening or closing; the locking elements are provided in pairs on the mounting platform, and each locking element is slidably engaged with a sliding groove provided on the bottom surface of the locking plate. The sliding groove is arranged along the sliding direction of the locking plate, and a locking groove is provided at both ends of the sliding groove. When the locking plate slides, the part of the locking element located in the sliding groove undergoes elastic deformation and recovers after being locked into the corresponding locking groove. That is, when the archwire groove is open or closed, the locking element and the corresponding locking groove are locked together.

[0007] In this technical solution, the locking plate of the orthodontic appliance is slidably mounted on the mounting platform of the bracket. The sliding of the locking plate opens or closes the archwire slot. When the archwire slot is open, it is easier to insert the archwire. The slidably mounted locking plate is locked by locking elements when the archwire slot is opened or closed. The locking elements are arranged in pairs to form a double locking structure. During the sliding process, each locking element can slide and engage with the corresponding slot. The locking element can undergo elastic deformation and return to its original position after sliding into the locking slot, so that the locking element and the corresponding locking slot are mutually locked. This allows the locking plate to maintain a stable locked state when the archwire slot is opened or closed, avoiding locking failure and locking plate shaking. The double positioning locking structure solves the problem of self-locking failure caused by the single locking structure in the prior art.

[0008] Preferably, the bottom of the tray is provided with a mesh bottom.

[0009] Preferably, the side of the bracket body corresponding to the stop position and opposite to the locking piece is provided with a clearance groove that penetrates the top of the bracket body.

[0010] Preferably, the mounting platform surface is provided with paired slide rails arranged perpendicular to the stop position, and the bottom of the locking plate is provided with a slide track that slides with the slide rails.

[0011] Preferably, the side of the bracket away from the mounting platform is provided with a traction hook.

[0012] Preferably, the locking element includes a solid rod and a hollow sleeve arranged inside and outside, with a gap between the hollow sleeve and the solid rod, and the hollow sleeve is elastic, so that the hollow sleeve can undergo elastic deformation when it is located in the groove.

[0013] Preferably, the elastic deformation of the hollow sleeve when it is located in the groove is less than the gap between the hollow sleeve and the solid rod.

[0014] Preferably, the mounting platform surface is provided with spaced assembly holes for mounting locking components.

[0015] This utility model also provides a dental orthodontic system, including several orthodontic appliances and archwires, characterized in that at least one orthodontic appliance is a double-locking dental appliance as described above.

[0016] The beneficial effects of this utility model are: This utility model solves the problem of self-locking failure caused by wear of a single locking channel in the market through the double locking channel design, and solves the problem of self-locking failure through the deformation of the solid rod inside the hollow tube component after wear through the semi-solid elastic locking component structure. It can be widely used in the field of orthodontic appliances and has high practical value. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 The three-dimensional double-lock orthodontic appliance provided in the embodiments of this utility model Figure 1 .

[0019] Figure 2 The three-dimensional double-lock orthodontic appliance provided in the embodiments of this utility model Figure 2 .

[0020] Figure 3 This is an exploded view of the double-lockway orthodontic appliance provided in the embodiments of this utility model.

[0021] Figure 4 This is a structural schematic diagram of the cross-section of the locking groove of the double-locking orthodontic appliance provided in this embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the internal engagement of the locking component of the double-locking orthodontic appliance provided in this embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram showing the locking mechanism of the locking plate and locking element of the double-locking orthodontic appliance provided in this embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram showing the locking mechanism of the double-locking orthodontic appliance provided in this embodiment of the present invention.

[0025] Reference numerals in the attached drawings: 1. Support bracket; 11. Slide rail; 12. Mounting platform; 121. Assembly hole; 13. Stop position; 14. Clearance groove; 15. Bow wire groove; 16. Traction hook; 2. Locking component; 21. Hollow sleeve; 22. Solid rod; 3. Locking piece; 31. Slide rail; 32. Slide groove; 33. Locking groove; 4. Net bottom. Detailed Implementation

[0026] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0027] It should be noted that, unless otherwise stated, the technical or scientific terms used in this application shall have the ordinary meaning as understood by one of ordinary skill in the art to which this utility model pertains.

[0028] Example 1

[0029] like Figures 1 to 7 As shown, a specific embodiment of this utility model provides a double-locking orthodontic appliance, including a bracket body 1, locking plates 3, and locking elements 2. The bracket body 1 has a mounting platform 12 on one side of its top, and a stop position 13 at one end of the bracket body 1 corresponding to the mounting platform 12. An archwire groove 15 is provided between the bracket body 1 and the mounting platform 12 corresponding to the stop position 13. The locking plate 3 is slidably engaged with the mounting platform 12, and can slide to a position that abuts or separates from the stop position 13, thus opening or closing the archwire groove 15. The locking elements 2 are arranged in pairs on the mounting platform 12, and each locking element is slidably engaged with a sliding groove 32 on the bottom surface of the locking plate 3. The sliding groove 32 is arranged along the sliding direction of the locking plate 3, and each end of the sliding groove 32 has a locking groove 33. When the locking plate 3 slides, the portion of the locking element 2 located within the sliding groove 32 undergoes elastic deformation and recovers after being engaged with the corresponding locking groove 33. That is, when the archwire groove 15 is open or closed, the locking element 2 and the corresponding locking groove 33 are mutually engaged and locked.

[0030] like Figures 1 to 7 As shown, with the above configuration, the locking plate 3 of the orthodontic appliance in this embodiment is slidably mounted on the mounting platform 12 of the bracket body 1. The sliding of the locking plate 3 opens or closes the archwire groove 15. When the archwire groove 15 is open, it is easier to insert the archwire into the groove. The slidably mounted locking plate 3 is locked by the locking member 2 when the archwire groove 15 is opened or closed. The locking members 2 are arranged in pairs to form a double locking structure. During the sliding process, each locking member 2 can slide and engage with the corresponding groove 32. The locking member 2 can undergo elastic deformation and return to its original position after sliding into the locking groove 33, so that the locking member 2 and the corresponding locking groove 33 are mutually locked. This allows the locking plate 3 to maintain a stable locked state when the archwire groove 15 is opened or closed, avoiding locking failure that causes the locking plate 3 to shake. The double positioning locking structure solves the problem of self-locking failure caused by single locking structures on the market.

[0031] like Figure 1 and Figure 2 As shown, in practical applications, the bottom of the bracket body 1 is provided with a mesh base 4. The mesh base 4 can be used to stably install the entire bracket body 1 structure. The connection relationship between the bracket body 1 and the mesh base 4 can be adjusted according to the needs of the orthodontic plan and orthodontic data. In some applications, the side of the bracket body 1 away from the mounting platform 12 is provided with a traction hook 16 to assist orthodontic treatment.

[0032] As mentioned earlier, when the locking plate 3 closes the archwire groove 15, the locking member 2 engages with the locking groove 33 to achieve self-locking fixation of the locking plate 3. In order to open the locking plate 3 and remove the archwire after use, this embodiment provides an avoidance groove 14 that penetrates the top of the bracket body 1 on the side opposite to the locking plate 3 at the corresponding stop position 13 of the bracket body 1. Figure 3As shown, the clearance groove 14 allows a groove structure to be formed between the end of the locking plate 3 and the stop position 13. This groove structure is arranged on the side of the stop position 13 and does not affect the sealing of the bow wire groove 15 by the locking plate 3. When the locking plate 3 needs to be opened after sealing the bow wire groove 15, it can be opened with the help of an external tool. The specific opening method of the locking plate 3 is to use a one-piece opening tool or a customized spring tool, insert the tool into the clearance groove 14 and rotate it. When the locking plate 3 is subjected to a horizontal pushing force, the locking member 2 can be disengaged from the locking groove 33, so that the locking plate 3 can be slid smoothly and the bow wire groove 15 can be opened.

[0033] like Figure 3 As shown, to ensure that the locking piece 3 can slide stably along the slide groove 32, this embodiment has a pair of slide rails 11 arranged perpendicular to the stop position 13 on the surface of the mounting platform 12, and a slide rail 31 at the bottom of the locking piece 3 that slides in cooperation with the slide rails 11. In this way, a double-rail structure can be formed. When the locking piece 3 slides between the open and closed positions of the bow wire groove 15, the stable cooperation between the two slide rails 11 and the slide rail 31 ensures the stability and accuracy of the sliding of the locking piece 3. The cooperation between the slide rails 11 and the slide rail 31 is an anti-disengagement structure. The double slide rail 11 structure and the double locking structure make the locking piece 3 only have the degree of freedom along the sliding direction of the slide rails 11, avoiding rotation when the locking piece 3 slides, and further ensuring the motion accuracy and stability of the self-locking system.

[0034] Example 2

[0035] like Figure 3 , Figure 6 and Figure 7As shown, this embodiment further optimizes the structure of the locking component 2 to improve the locking effect and the locking stability of the orthodontic appliance during long-term use. Specifically, the locking component 2 includes a solid rod 22 and a hollow sleeve 21 arranged internally and externally. There is a gap between the hollow sleeve 21 and the solid rod 22, and the hollow sleeve 21 is elastic, allowing it to undergo elastic deformation when located in the slide groove 32. The elastic deformation of the hollow sleeve 21 when located in the slide groove 32 is less than the gap between the hollow sleeve 21 and the solid rod 22. In other words, the locking component 2 is a semi-solid structure that can undergo elastic deformation, consisting of the solid rod 22 and the hollow sleeve 21. The gap between the hollow sleeve 21 and the solid rod 22 allows for smooth assembly of the two structures. Furthermore, this gap ensures that when the hollow sleeve is located in the slide groove 32, the part in contact with the slide groove 32 can undergo elastic deformation and automatically recover after it is engaged in the locking groove 33. This also adapts to the needs of different designs. The advantage of this design is that, after long-term use, when the hollow sleeve 21 is subjected to prolonged compression and eventually undergoes plastic deformation that cannot be restored, the solid rod 22 arranged inside the hollow sleeve 21, being a solid structure, cannot be compressed and deformed. Therefore, it can still lock with the locking groove 33, further ensuring the stability of its self-locking function. To ensure smooth sliding of the locking piece 3 and stability after locking, the sidewalls of the slide groove 32 are smoothly arranged, and the transition area between the slide groove 32 and the locking groove 33 is rougher, which is beneficial for maintaining a stable self-locking state of the locking piece 3.

[0036] like Figure 7 As shown, since the two sets of locking elements 2 are independent of each other, even if a corresponding locking element 2 and the slide groove 32 wear out due to long-term engagement, it will not cause the failure of the entire locking structure. Typically, the hollow sleeve 21 has a circular cross-sectional shape, and the wall thickness of the hollow sleeve 21 is 0.04mm to 0.1mm. The gap D1 between the solid rod 22 and the hollow sleeve 21 ranges from 0.02mm to 0.05mm. In terms of specific materials, the solid rod 22 and the hollow sleeve 21 are made of elastic metals such as nickel-titanium or stainless steel.

[0037] like Figure 3 As shown, regarding the installation method of the locking components 2, since both locking components 2 need to be installed on the mounting platform 12, the surface of the mounting platform 12 is provided with spaced-apart mounting holes 121 for installing the locking components 2. The arrangement of the two mounting holes is as follows: Figure 4 As shown, the distance D1 between the two mounting holes 121 on the mounting platform 12 parallel to the slide rail is 0.5mm to 1mm, and the distance D2 between the two mounting holes on the mounting platform 1 in the direction perpendicular to the slide rail is 0mm to 1mm.

[0038] like Figure 1 As shown, in this embodiment, the mounting hole is completely through the bracket body 1, and the end of the mounting hole away from the locking piece 3 can be closed by various methods such as welding, bonding and mesh bottom 4.

[0039] Example 3

[0040] This embodiment provides a dental orthodontic system, including several appliances and archwires, wherein at least one appliance is a double-locking dental appliance as described above. The use of a double-locking dental appliance in the dental orthodontic system improves stability and extends the system's lifespan.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model, and they should all be covered within the scope of the claims and specification of this utility model.

Claims

1. A double-lock orthodontic appliance, characterized in that; It includes a bracket (1), a locking piece (3), and a locking element (2); The bracket body (1) has a mounting platform (12) on one side of its top, and a stop position (13) is provided at one end of the bracket body (1) corresponding to the mounting platform (12). A bow wire groove (15) is provided between the bracket body (1) and the mounting platform (12) corresponding to the stop position (13). The locking plate (3) is slidably engaged with the mounting platform (12). The locking plate (3) can slide to a position that abuts or separates from the stop position (13), so that the slot of the bow wire groove (15) is opened or closed. The locking elements (2) are arranged in pairs on the mounting platform (12). Each locking element (2) is slidably engaged with the sliding groove (32) on the bottom surface of the locking piece (3). The sliding groove (32) is arranged along the sliding direction of the locking piece (3). A locking groove (33) is provided at both ends of the sliding groove (32). When the locking piece (3) slides, the part of the locking element (2) located in the sliding groove (32) undergoes elastic deformation and recovers after being engaged in the corresponding locking groove (33). That is, when the bow wire groove (15) is in the open or closed state, the locking element (2) and the corresponding locking groove (33) engage and lock with each other.

2. The double-lock orthodontic appliance according to claim 1, characterized in that; The bottom of the tray (1) is provided with a mesh bottom (4).

3. The double-lock orthodontic appliance according to claim 1, characterized in that; The bracket (1) has a clearance groove (14) that passes through the top of the bracket (1) on the side opposite to the stop position (13) and the locking piece (3).

4. The double-lock orthodontic appliance according to claim 1, characterized in that; The mounting platform (12) has a pair of slide rails (11) arranged perpendicular to the stop position (13) on its surface, and the bottom of the locking plate (3) has a slide rail (31) that slides with the slide rails (11).

5. The double-lock orthodontic appliance according to claim 1, characterized in that; The bracket (1) is provided with a traction hook (16) on the side away from the mounting platform (12).

6. The double-lock orthodontic appliance according to any one of claims 1-5, characterized in that; The locking member (2) includes a solid rod (22) arranged inside and outside and a hollow sleeve (21). There is a gap between the hollow sleeve (21) and the solid rod (22), and the hollow sleeve (21) is elastic, so that the hollow sleeve (21) can undergo elastic deformation when it is located in the groove (32).

7. The double-lock orthodontic appliance according to claim 6, characterized in that; When the hollow sleeve (21) is located in the groove (32), the elastic deformation is less than the gap between the hollow sleeve (21) and the solid rod (22).

8. The double-lock orthodontic appliance according to claim 6, characterized in that; The surface of the mounting platform (12) is provided with mounting holes (121) spaced apart for mounting the locking element (2).

9. A dental orthodontic system, comprising a plurality of orthodontic appliances and archwires, characterized in that, At least one orthodontic appliance is a double-locking orthodontic appliance as described in any one of claims 1-8.

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