Active self-ligating bracket for lingual anterior teeth

Abstract

The invention discloses a lingual anterior tooth active self-ligating bracket, which comprises a bracket body and an elastic sheet lock cover, one side of the bracket body is provided with a bottom plate for bonding a tooth surface, the other side of the bracket body is provided with an arch wire groove, the bracket body is internally provided with a sliding groove communicated with the arch wire groove, and the elastic sheet lock cover is installed in the sliding groove in a sliding manner; the elastic piece lock cover comprises an abutting section and a protection section, the abutting section and the protection section are arranged in the depth direction of the arch wire groove in a spaced mode, one end of the abutting section and one end of the protection section are elastically connected, and the other end of the abutting section and the other end of the protection section are free ends and extend into a groove opening of the arch wire groove. The abutting section is located on the side close to the groove bottom of the arch wire groove. The bracket has the advantages that the quality of the bracket in the whole treatment process can be guaranteed, and the influence on the treatment progress is reduced.

Description

Technical Field

[0001] The invention relates to the field of dental medicine, and in particular to an active self-locking bracket for lingual front teeth. Background Art

[0002] At present, with the popularization and promotion of orthodontics, orthodontic treatment is increasingly accepted by the public, and self-ligating brackets are an important component in orthodontic treatment technology. The currently commonly used self-ligating brackets are mainly passive self-ligating brackets. The locking cover of the passive self-ligating bracket does not contact the archwire, which will reduce the control of the angles of the teeth in all directions to a certain extent, especially for the maxillary anterior teeth with relatively high requirements. Therefore, in actual operation, the self-ligating brackets are often folded back and ligated to ensure the control of the teeth. However, the purpose of the self-ligating brackets themselves is to simplify the operation. If the self-ligating brackets need to be ligated, they become "ligated brackets". Although passive self-ligation can simplify clinical operations to a certain extent, it is achieved at the expense of some control over the teeth. Based on this, active self-ligating brackets were introduced.

[0003] Existing, for example, the Chinese patent document publication number is CN111214300B, and the patent name is a kind of orthodontic active self-ligating bracket with narrow groove and wide wing, which includes a bonding mesh base, a groove body provided with grooves and ligature wings and fixed on the bonding mesh base, a sliding spring piece combined with the groove body, and a positioning scale for bracket positioning, wherein the sliding spring piece is exposed on the outside of the groove body, and is easily bitten in clinical practice, resulting in deformation or damage of the sliding spring piece. Therefore, active self-ligating brackets are rarely used on the market nowadays, and an active self-ligating bracket that can solve the above problems is urgently needed. Summary of the invention In order to ensure the quality of the bracket throughout the entire treatment process and reduce the impact on the treatment progress, the present application provides an active self-ligating bracket for lingual anterior teeth.

[0004] The present application provides a lingual anterior teeth active self-ligating bracket, which adopts the following technical solution: A lingual anterior teeth active self-ligating bracket comprises a bracket body and a spring-loaded locking cover, wherein a base plate for bonding to a tooth surface is provided on one side of the bracket body, and an archwire slot is provided on the other side, a sliding slot connected to the archwire slot is provided in the bracket body, and the spring-loaded locking cover is slidably installed in the sliding slot; the spring-loaded locking cover comprises a pressing section and a protective section, the pressing section and the protective section are spaced apart in the depth direction of the archwire slot, one end of the pressing section and the protective section are elastically connected, and the other ends of the pressing section and the protective section are both free ends and extend into the slot of the archwire slot, and the pressing section is located on the side close to the bottom of the archwire slot.

[0005] By adopting the above technical scheme, when in use, it is directly adhered to the tooth surface through the bottom plate, and then after the archwire is inserted into the archwire slot, the spring clip lock cover is slid so that the free end of the pressing section and the free end of the protecting section are both extended into the archwire slot, the pressing section is abutted on the archwire slot, and the protecting section is located directly above the pressing section; when the patient is in the clinical process, since the spring clip lock cover is in the sliding groove, that is, in the bracket body, the situation where the patient directly bites the spring clip lock cover, causing the spring clip lock cover to be deformed or damaged, can be greatly reduced; even if impurities enter the archwire slot, when the teeth are bitten, they are pressed down by the impurities, and only the protecting section is bitten, and the protecting section is slightly deformed, which will not affect the pressing section directly acting on the archwire; and even if the protecting section is deformed, it will only deform toward the pressing section, and will not be damaged due to the lack of space for deformation; therefore, the quality of the bracket in the entire treatment process can be guaranteed, and the impact on the treatment progress can be reduced.

[0006] Preferably, the portion of the pressing section located in the archwire slot is in an arc shape, and the outer arc surface of the arc-shaped portion of the pressing section faces the bottom of the archwire slot.

[0007] By adopting the above technical solution, when the spring lock cover is slid into the archwire slot, it can be deformed spontaneously through the action of the arc-shaped pressing section, so as to meet the requirements of pressing archwires of various sizes and types; therefore, various sizes and types of archwires used in the entire treatment process of the patient can be pressed, so that the treatment process can better express the angle and make the teeth easier to position.

[0008] Preferably, the bracket body is located on the slot wall of the archwire slot and is provided with a plurality of retaining grooves on a side away from the sliding groove, the plurality of retaining grooves are spaced apart in the depth direction of the archwire slot, the free end of the pressing section is engaged with the retaining groove, and the bracket body is located between adjacent retaining grooves and is provided with a guide surface at one end thereof facing the archwire slot.

[0009] By adopting the above technical solution, after the free end of the pressing section is adaptively deformed in the arch wire slot according to the size of the arch wire, the free end of the pressing section will be inserted into the corresponding slot, thereby increasing the clamping force and allowing both small and large arch wires to be closer to the bottom of the arch wire slot, making the pressing section more stable against the arch wire.

[0010] Preferably, when the free end of the pressing section is inserted into the positioning groove away from the bottom of the archwire slot, the free end of the protection section abuts against the pressing section.

[0011] By adopting the above technical solution, when the pressing section presses against a large-sized arch wire, the free end of the pressing section will be inserted into the positioning groove on the side away from the bottom of the arch wire groove, and the free end of the protective section will abut against the pressing section, which can further enhance the clamping force on the arch wire.

[0012] Preferably, a pair of arc-shaped locking grooves are opened in the sliding groove on the side opposite to the protective section, and the two arc-shaped locking grooves are spaced apart along the sliding direction of the spring lock cover, and the protective section protrusion is formed with a locking position, and the locking position is clamped in the arc-shaped locking groove; when the locking position is clamped in the arc-shaped locking groove away from the archwire slot, the free end of the pressing section and the free end of the protective section are both in the sliding groove.

[0013] By adopting the above technical solution, when the sliding spring lock cover is locked in different arc-shaped locking grooves through the locking position, the spring lock cover can be stabilized at the opening and closing positions of the archwire slot without spontaneous slippage.

[0014] Preferably, locking arms are provided on both sides of the pressing section, one end of the locking arm is elastically connected to the pressing section and the other end is a free end, and a locking block is provided on the side where the two locking arms are away from each other; a pair of arc-shaped locking grooves are provided on the opposite sides of the sliding groove, and the locking block is clamped in the arc-shaped locking groove; when the locking block is clamped in the arc-shaped locking groove away from the archwire groove, the free end of the pressing section and the free end of the protective section are both in the sliding groove.

[0015] By adopting the above technical solution, when sliding the spring piece lock cover, the lock block can be inserted into different arc-shaped lock grooves, so that the spring piece lock cover can be stabilized at the open and closed archwire slot positions; since the lock cover of the present application is a spring piece, the protection section and the pressing section are both limited by setting the locking position and the lock block respectively, thereby enhancing the stability of the sliding position of the spring piece lock cover.

[0016] Preferably, the protection section is provided with a toggle hole, and a avoidance groove is provided on a side of the bracket body away from the bottom plate and corresponding to the sliding groove. The avoidance groove is connected to the sliding groove, and the avoidance groove extends toward the toggle hole in the sliding direction of the spring lock cover.

[0017] By adopting the above technical solution, the operator can directly insert the tool into the toggle hole, and then slide along the extension direction of the avoidance groove to achieve the sliding of the toggle spring lock cover, which is easy to operate.

[0018] Preferably, a sink groove is formed on a side of the bottom plate away from the bracket body, and a plurality of bosses are provided on the bottom plate corresponding to the sink groove.

[0019] By adopting the above technical solution, the side of the base plate close to the tooth surface is mesh-shaped, which can further strengthen the bonding force between the bracket and the tooth surface.

[0020] In summary, the present application includes at least one of the following beneficial technical effects: 1. During the clinical process, since the spring lock cover is in the sliding groove, that is, in the bracket body, the patient can be greatly reduced from biting the spring lock cover directly, causing deformation or damage to the spring lock cover; even if impurities enter the archwire slot, when the teeth bite down with the impurities, they only bite the protective section, which is slightly deformed and will not affect the pressing section directly acting on the archwire; and even if the protective section is deformed, it will only deform toward the pressing section and will not be damaged because there is no space for deformation; therefore, the quality of the bracket in the entire treatment process can be guaranteed and the impact on the treatment progress can be reduced; 2. When the spring lock cover is slid into the archwire slot, it can be deformed spontaneously through the arc-shaped pressing section, so as to meet the pressing requirements of archwires of various sizes and types; therefore, it can be pressed on archwires of various sizes and types used in the entire treatment process of the patient, so that the treatment process can better express the angle and make the teeth easier to position; 3. After the free end of the pressing section undergoes adaptive deformation in the archwire slot according to the size of the archwire, the free end of the pressing section will be inserted into the corresponding slot, thereby increasing the clamping force and allowing both small and large archwires to be closer to the bottom of the archwire slot, making the pressing section more stable when pressing the archwire. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0022] Figure 2 It is a cross-sectional view of the bracket body structure of an embodiment of the present application.

[0023] Figure 3 It is a schematic diagram of the spring lock cover structure of an embodiment of the present application.

[0024] Figure 4 This is a cross-sectional view of a small-sized archwire positioning structure according to an embodiment of the present application.

[0025] Figure 5 This is a cross-sectional view of a large-size archwire positioning structure according to an embodiment of the present application.

[0026] Figure 6 It is a cross-sectional view of the unlocked state of the embodiment of the present application.

[0027] Figure 7 It is a cross-sectional view of the middle state of an embodiment of the present application.

[0028] Figure 8 It is a cross-sectional view of the locked state of an embodiment of the present application.

[0029] Description of reference numerals: 1. bracket body; 11. bottom plate; 111. countersunk groove; 112. boss; 12. archwire groove; 13. sliding groove; 14. positioning groove; 15. guide surface; 16. arc-shaped locking groove; 17. arc-shaped locking groove; 18. avoidance groove; 2. spring lock cover; 21. pressing section; 22. protection section; 23. locking position; 24. locking arm; 25. locking block; 26. toggle hole; 27. notch. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-8 This application is described in further detail.

[0031] The present application embodiment discloses a lingual anterior teeth active self-ligating bracket. Figure 1 and Figure 2 The lingual anterior active self-ligating bracket comprises a bracket body 1 and a spring-clip lock cover 2. A base plate 11 is fixedly mounted on one side of the bracket body 1, and an archwire slot 12 is provided on the other side. The archwire slot 12 is located between the upper wing and the lower wing of the bracket body 1. The cross-sectional area of ​​the base plate 11 is larger than the cross-sectional area of ​​the bracket body 1. The base plate 11 is in an arc shape that matches the tooth surface. The side of the base plate 11 away from the bracket body 1 is used for bonding to the tooth surface; a sinking groove 111 is provided on the side of the base plate 11 away from the bracket body 1, and a plurality of bosses 112 are evenly arranged in the base plate 11 corresponding to the sinking groove 111. The bosses 112 are truncated cone-shaped, so that the base plate 11 is more firmly bonded to the tooth surface; a sliding groove 13 is provided in the bracket body 1 at a position corresponding to the upper wing of the bracket body 1, and one end of the sliding groove 13 is connected to the archwire slot 12, and the other end extends out of the bracket body 1; the spring-clip lock cover 2 is slidably installed in the sliding groove 13.

[0032] Reference Figure 3 and Figure 4 The spring-type lock cover 2 includes a pressing section 21 and a protective section 22, which are spaced apart in the depth direction of the archwire slot 12, wherein the pressing section 21 is located on the side close to the bottom of the archwire slot 12, one end of the pressing section 21 and the protective section 22 are elastically connected, and the other ends of the pressing section 21 and the protective section 22 are both free ends and extend into the archwire slot 12; when the archwire is inserted into the archwire slot 12, the free end of the pressing section 21 presses against the archwire; the portion of the pressing section 21 located in the archwire slot 12 is in an arc shape, and the outer arc surface of the arc-shaped portion of the pressing section 21 faces the bottom of the archwire slot 12, that is, the outer arc surface of the arc-shaped portion of the pressing section 21 presses against the archwire; refer to Figure 4 and Figure 5 ,in Figure 4 When the arch wire is small in size, the pressing section 21 is pressing the arch wire; and Figure 5 When the arch wire is a large size, the state diagram of the pressing section 21 pressing the arch wire, and Figure 5The dotted line in the figure represents the state of the pressing section 21 when the archwire is small in size. Therefore, setting the portion of the pressing section 21 located in the archwire slot 12 to an arc shape can meet the pressing requirements of archwires of different sizes during treatment.

[0033] refer to Figure 4 and Figure 5 A pair of positioning grooves 14 are provided on the side of the bracket body 1 located on the groove wall of the archwire groove 12 and away from the sliding groove 13. The two positioning grooves 14 are spaced apart in the depth direction of the archwire groove 12. The width of the positioning grooves 14 is greater than the thickness of the pressing section 21. A guide surface 15 is provided on the portion of the bracket body 1 located between the two positioning grooves 14 and on one end facing the archwire groove 12, so that the pressing section 21 can be smoothly inserted into the corresponding positioning groove 14; refer to Figure 4 When the archwire is a small-sized archwire, the free end of the pressing section 21 is clamped in the clamping groove 14 near the bottom of the archwire groove 12; Figure 5 When the archwire is a large-sized archwire, the free end of the pressing section 21 is clamped in the clamping groove 14 close to the side away from the bottom of the archwire groove 12, and the free end of the protection section 22 is abutted against the pressing section 21; no matter whether the archwire is a large-sized or small-sized archwire, there is a gap between the protection section 22 and the pressing section 21.

[0034] Reference Figure 6 , Figure 7 and Figure 8 A pair of arc-shaped locking grooves 16 are provided in the sliding groove 13 on one side opposite to the protection section 22. The two arc-shaped locking grooves 16 are arranged at intervals along the sliding direction of the spring piece lock cover 2. The position of the protection section 22 away from the free end is protruded in the direction away from the pressing section 21 to form a locking position 23, and the locking position 23 is clamped in the arc-shaped locking groove 16; when the locking position 23 is clamped in the arc-shaped locking groove 16 away from the archwire slot 12, the free end of the pressing section 21 and the free end of the protection section 22 are both in the sliding groove 13; when the locking position 23 is clamped in the arc-shaped locking groove 16 close to the archwire slot 12, the free end of the pressing section 21 and the free end of the protection section 22 are both in the archwire slot 12, and the free end of the pressing section 21 is clamped in the corresponding clamping groove 14; thereby, the sliding position of the spring piece lock cover 2 can be limited.

[0035] Reference Figure 3 and Figure 5, locking arms 24 are provided on both sides of the pressing section 21, one end of the locking arm 24 is elastically connected to the pressing section 21, and the other end is a free end, that is, there is a deformation gap between the locking arm 24 and the pressing section 21, and a locking block 25 is integrally formed on the side away from each other of the two locking arms 24, and a pair of arc-shaped locking grooves 17 are provided on the opposite sides of the sliding groove 13, and the locking block 25 is clamped in the arc-shaped locking groove 17; when the locking block 25 is clamped in When away from the arc-shaped locking groove 17 of the archwire slot 12, the free end of the pressing section 21 and the free end of the protecting section 22 are both in the sliding groove 13; when the locking block 25 is engaged with the arc-shaped locking groove 17 close to the archwire slot 12, the free end of the pressing section 21 and the free end of the protecting section 22 are both in the archwire slot 12, and the free end of the pressing section 21 is engaged with the corresponding locking groove 14; thereby, the sliding position of the spring leaf lock cover 2 can be further restricted.

[0036] Reference Figure 1 and Figure 3 A toggle hole 26 is provided in the middle position of the protection section 22 near the free end, and an avoidance groove 18 is provided on the side of the bracket body 1 away from the bottom plate 11 and corresponding to the sliding groove 13. The avoidance groove 18 is provided in the middle position of the side of the bracket body 1 away from the bottom plate 11, and the avoidance groove 18 is connected to the sliding groove 13. The avoidance groove 18 extends toward the toggle hole 26 in the sliding direction of the spring lock cover 2; a notch 27 is provided at one end of the pressing section 21 near the free end and directly opposite to the toggle hole 26, so that a tool can be easily inserted to slide the entire spring lock cover 2.

[0037] The implementation principle of the active self-ligating bracket for lingual anterior teeth in the embodiment of the present application is as follows: when in use, the bracket is directly adhered to the tooth surface through the bottom plate 11, and then after the arch wire is inserted into the arch wire slot 12, a tool is used to insert the toggle hole 26, and the spring clip lock cover 2 is slid, so that the free end of the pressing section 21 and the free end of the protective section 22 are both extended into the arch wire slot 12, the pressing section 21 is abutted on the arch wire slot 12, and the free end of the pressing section 21 is inserted into the corresponding clamping groove 14; thereby, the pressing force of the pressing section 21 on the arch wire can be guaranteed, so that the arch wire can fit the bottom of the arch wire slot 12 more closely; and the situation that the patient directly bites the spring clip lock cover 2, causing the spring clip lock cover 2 to be deformed or damaged, can be greatly reduced; when it is necessary to replace the arch wire of different sizes according to the treatment progress, the spring clip lock cover 2 is slid, so that the free end of the pressing section 21 and the free end of the protective section 22 are both away from the arch wire slot 12, and the replacement can be carried out.

[0038] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A lingual anterior teeth active self-ligating bracket, characterized in that: The invention comprises a bracket body (1) and an elastic locking cover (2); one side of the bracket body (1) is provided with a base plate (11) for bonding a tooth surface, and the other side is provided with an archwire slot (12); a sliding slot (13) connected to the archwire slot (12) is provided in the bracket body (1); the elastic locking cover (2) is slidably installed in the sliding slot (13); the elastic locking cover (2) comprises a pressing section (21) and a protective section (22); the pressing section (21) and the protective section (22) are arranged at intervals in the depth direction of the archwire slot (12); one end of the pressing section (21) and the protective section (22) are elastically connected; the other ends of the pressing section (21) and the protective section (22) are both free ends and extend into the slot of the archwire slot (12); the pressing section (21) is located on the side close to the bottom of the archwire slot (12).

2. The lingual anterior teeth active self-ligating bracket according to claim 1, characterized in that: The portion of the pressing section (21) located in the archwire slot (12) is in an arc shape, and the outer arc surface of the arc-shaped portion of the pressing section (21) faces the bottom of the archwire slot (12).

3. The lingual anterior teeth active self-ligating bracket according to claim 2, characterized in that: The bracket body (1) is located on the groove wall of the archwire groove (12) and is provided with a plurality of locking grooves (14) on a side away from the sliding groove (13). The plurality of locking grooves (14) are arranged at intervals in the depth direction of the archwire groove (12). The free end of the pressing section (21) is locked in the locking groove (14). The portion of the bracket body (1) located between adjacent locking grooves (14) and facing one end of the archwire groove (12) is provided with a guide surface (15).

4. The lingual anterior teeth active self-ligating bracket according to claim 3, characterized in that: When the free end of the pressing section (21) is inserted into the positioning groove (14) at a side away from the bottom of the archwire groove (12), the free end of the protection section (22) abuts against the pressing section (21).

5. The lingual anterior teeth active self-ligating bracket according to claim 1, characterized in that: A pair of arc-shaped locking grooves (16) are provided in the sliding groove (13) on one side facing the protection section (22); the two arc-shaped locking grooves (16) are spaced apart along the sliding direction of the spring lock cover (2); the protection section (22) is protruded to form a locking position (23); the locking position (23) is engaged in the arc-shaped locking groove (16); when the locking position (23) is engaged in the arc-shaped locking groove (16) away from the archwire groove (12), the free end of the pressing section (21) and the free end of the protection section (22) are both in the sliding groove (13).

6. The lingual anterior teeth active self-ligating bracket according to claim 1 or 5, characterized in that: The pressing section (21) is provided with locking arms (24) on both sides, one end of the locking arms (24) is elastically connected to the pressing section (21), and the other end is a free end, and a locking block (25) is provided on the side away from each other of the two locking arms (24); a pair of arc-shaped locking grooves (17) are provided on the opposite sides of the sliding groove (13), and the locking block (25) is engaged with the arc-shaped locking groove (17); when the locking block (25) is engaged with the arc-shaped locking groove (17) away from the archwire groove (12), the free end of the pressing section (21) and the free end of the protection section (22) are both located in the sliding groove (13).

7. The lingual anterior teeth active self-ligating bracket according to claim 1, characterized in that: The protection section (22) is provided with a toggle hole (26), and a avoidance groove (18) is provided on a side of the bracket body (1) away from the bottom plate (11) and corresponding to the position of the sliding groove (13), the avoidance groove (18) is connected to the sliding groove (13), and the avoidance groove (18) extends toward the toggle hole (26) in the sliding direction of the spring lock cover (2).

8. The lingual anterior teeth active self-ligating bracket according to claim 1, characterized in that: A sink groove (111) is provided on a side of the bottom plate (11) away from the bracket body (1), and a plurality of bosses (112) are provided in the bottom plate (11) corresponding to the sink groove (111).

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