Berger straight-wire double-groove bracket
By combining the advantages of straight wire arches and Begg technology through the design of double groove brackets, three-dimensional adjustment can be carried out simultaneously, which solves the problem that existing brackets cannot be flexibly adjusted, improves the treatment effect and efficiency, and reduces the difficulty and risk of operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HAINAN WEIDIANBERG TECHNOLOGY CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-28
AI Technical Summary
The existing bracket design features a single groove and a single torque, which cannot flexibly adjust the treatment mode, resulting in a cumbersome and inaccurate treatment process. Furthermore, it cannot combine the advantages of straight wire arches and Begg techniques, increasing the complexity of treatment and patient discomfort.
The Begg straight wire bow features a double groove support, including a main groove and side grooves, each capable of handling different torque types. Combining the advantages of straight wire bows and Begg technology, it enables simultaneous three-dimensional adjustment and employs a self-locking cover to achieve dual self-locking functionality, simplifying the operation process.
It improves the effectiveness and efficiency of correction, shortens the treatment course, reduces the difficulty and workload of operation, enhances the precision and comfort of correction, and reduces the risk of bone fenestration and root resorption.
Smart Images
Figure CN224166428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of dental orthodontic instruments, specifically to a Berger straight wire arch double groove bracket. Background Technology
[0002] Currently, fixed orthodontic techniques mainly include two major systems: the straight wire system (also known as the square wire system) and the Begg system (also known as the Begg system). When using the straight wire system (straight wire appliances) for orthodontic treatment, the main characteristic of tooth movement is overall movement (with a pre-set axis and slight torque). In contrast, when using the Begg system, the teeth first move by tilting the crowns (without a pre-set axis and slight torque, allowing for free tooth movement), followed by tilting the roots (i.e., straightening the teeth), ultimately achieving overall movement.
[0003] During orthodontic treatment, controlling the three-dimensional adjustment of teeth is mainly achieved by controlling the tooth axis and torque through brackets. Torque control involves several stages: manual bending → preset torque → high, medium, and low torque categories → multiple rotations per bracket. In 1970, Andrews proposed the standard straight wire bracket, which presets torque values according to different tooth positions, greatly reducing the tedious manual bending process. The Damon series brackets (1998) categorize bracket torque into high, medium, and low torque categories.
[0004] 1. Low-torque brackets: These brackets have a smaller torque value and are typically used in cases where it is necessary to reduce the labial or lingual inclination of teeth, such as maintaining teeth upright or slight lingual inclination. This design allows for easy control of tooth translation and is suitable for cases with mild crowding or where significant torque adjustment is not required, such as Angle Class I malocclusion.
[0005] II. Medium Torque Brackets: With a torque value between high and low torque, this is the most commonly used standard design in clinical practice and is suitable for most common malocclusions. These brackets provide sufficient torque to control tooth tilt (e.g., preventing excessive lingual tilting of the crown when retracting anterior teeth) while avoiding the root risks associated with excessive torque. They are suitable for most Angle Class I and II cases, and some Class III cases.
[0006] 3. High-torque brackets: These brackets have a higher torque value and are specifically designed for cases requiring significant labial or lingual inclination, such as maintaining root position when the upper anterior teeth are severely retracted. High-torque brackets can directly apply a large torque force through their design, making them suitable for cases requiring upright posterior teeth, excessive retraction of anterior teeth, or correction of severe rotation, such as Angle Class II deep overbite or open bite. For cases clearly requiring high torque, directly using high-torque brackets can avoid mid-treatment bracket changes or additional archwire bending, thereby improving treatment efficiency.
[0007] However, existing brackets, whether straight wire or Begg systems, are designed with a single groove and a single torque concept, unable to accommodate both systems and three torques simultaneously. In actual orthodontic treatment, dentists frequently need to adjust the treatment pattern based on tooth morphology (e.g., overall movement or tilting movement), but existing brackets only have one groove (straight wire groove or differential force groove) and one torque (high torque, medium torque, or low torque), limiting their practicality as they cannot adjust the treatment pattern in real time according to treatment needs. Furthermore, the archwire must be bent according to different treatment stages to compensate for axial tilt and torque, resulting in low accuracy and precision, a cumbersome process, increased workload, and a significant decrease in treatment compliance.
[0008] The straight wire archetype and the Begg system have highly complementary advantages and disadvantages. The straight wire technique offers advantages such as highly efficient and precise axial root control, a simple and easy operation process, fewer steps required for archwire bending, stable and long-lasting treatment results, and a low relapse rate. However, tooth movement and facial profile changes are slow, requiring higher anchorage conditions. Anchorage screws are usually needed to enhance anchorage, which increases the complexity of treatment and patient discomfort. Furthermore, the orthodontic forces applied during treatment are relatively large, which may put pressure on periodontal tissues and tooth roots. Improper operation significantly increases the risk of bone fenestration and root resorption, posing a potential threat to the patient's oral health.
[0009] The Begg technique offers advantages such as rapid tooth movement, quick facial contouring, lighter orthodontic forces, reduced burden on periodontal tissues during treatment, and good anchorage control. However, it is more difficult to perform: the treatment requires extensive archwire bending, demanding a high level of skill and experience from the dentist; moreover, its axial root control efficiency is lower: compared to the straight wire technique, it is relatively less efficient in adjusting root position and overall tooth alignment. Utility Model Content
[0010] The purpose of this invention is to provide a Begg straight wire double-groove bracket. This bracket is designed with straight wire grooves and differential torque grooves according to actual needs. Different groove types can be designed as high-torque, medium-torque, and low-torque grooves, enabling a "five-in-one, three-dimensional adjustment simultaneously" orthodontic mode, greatly facilitating clinical application. Furthermore, it allows for the selection of Begg technology or straight wire technology, or both technologies simultaneously, and different torques for different groove types, according to the needs of different treatment stages. This integrates the advantages of both technologies, overcoming the limitations of brackets with single grooves and single torques, improving orthodontic effect and efficiency, and shortening the treatment course.
[0011] The differential power groove is based on the concept and structure of the Begg groove teeth that can move freely. In other words, the differential power groove of this utility model imitates the design of the Begg groove. When using round wire, the axial inclination is unrestricted, just like the Begg groove. However, when using square wire, the torque is limited to high torque, medium torque, or low torque.
[0012] To achieve the above objectives, the present invention adopts the following technical solution:
[0013] The Beger straight wire double groove bracket includes a bracket body, a main groove, and side grooves; the bottom of the bracket body has a base suitable for contacting the teeth; the main groove is located on the front of the bracket body; the side grooves are located on the gingival or incisal side of the bracket body, with their openings facing outwards; the cavities of the main groove and the side grooves are different.
[0014] In one optional embodiment, the main groove is a straight wire bow groove or a differential power groove, and the side groove is a straight wire bow groove or a differential power groove.
[0015] In one optional embodiment, the main trench is a differential power trench, the diameter of which gradually increases from the middle to the two side ends; or, the side trench is a differential power trench, the bottom of which is designed as a wedge-shaped structure with a raised middle part and sloping sides, that is, the middle part of the trench bottom is raised and the two sides are sloping towards the two ends of the trench.
[0016] In one optional embodiment, both the straight wire arch groove and the differential force groove are designed as square tubular structures, suitable for adhesion to the molar position to fix the orthodontic archwire. The square tubular structure corresponding to the differential force groove is designed mesial-gingivally, wherein the extension line of one side port forms an acute angle with the extension line of the same side port of the square tubular structure corresponding to the straight wire arch groove.
[0017] In one optional embodiment, the main groove is a medium torque groove, a high torque groove, or a low torque groove, and the side groove is a high torque groove, a medium torque groove, or a low torque groove.
[0018] In one optional embodiment, a self-locking cover is movably disposed on the bracket body. The self-locking cover includes two sealing surfaces that respectively cover the opening above the main groove and the outside of the side groove, which are suitable for simultaneously locking or opening the openings of the main groove and the side groove.
[0019] In one optional embodiment, the self-locking cover is slidably connected to the bracket body and locked and fixed by a locking assembly. The bracket body has a recessed mounting groove at a position corresponding to the self-locking cover. The locking assembly is installed in the mounting groove. The locking assembly includes an elastic locking member, which is door-shaped and horizontally arranged in the mounting groove. The upper part of the elastic locking member protrudes above the mounting groove by a predetermined height. Two embedded holes of a predetermined depth are horizontally spaced on the end face of the mounting groove. The two ends of the elastic locking member are respectively inserted and fixed into the two embedded holes. An included angle is formed on both sides of the mounting groove. The vertical columnar parts on both sides of the elastic locking member are respectively locked in the two included angles.
[0020] In one alternative embodiment, the self-locking cover includes a first cover covering the main groove and a second cover outside the side groove, the first cover and the second cover being L-shaped and adapted to slide back and forth on the bracket body to simultaneously lock or open the openings of the main groove and the side groove.
[0021] In an optional embodiment, an auxiliary groove is also provided on the incisional sidewall or gingival sidewall corresponding to the lateral groove of the bracket body. The auxiliary groove is a straight wire arch groove or a differential force groove, which is suitable for synergistic effect with the main groove and / or the lateral groove at a certain stage of treatment.
[0022] The straight wire bow groove is a high torque groove, a medium torque groove, or a low torque groove, and the differential power groove is a high torque groove, a medium torque groove, or a low torque groove.
[0023] In one alternative embodiment, the lower sidewall of the side groove is provided in a concave arc shape.
[0024] Compared with the prior art, the technical solution of this utility model has the following advantages:
[0025] 1. Innovative Technology Integration: The Berger Straight Wire Bracket innovatively integrates straight wire grooves and differential force grooves, creatively combining straight wire and differential force technologies. Clinicians can flexibly switch between differential force, straight wire, or a combination of both technologies according to the needs of different treatment stages. For example, differential force can be used in the early clinical stages to open the bite and perform rapid, light-force orthodontic treatment. This organic combination fully leverages the core advantages of both technologies, retaining the precise three-dimensional control of straight wire technology while showcasing the light-force, high-efficiency characteristics of differential force technology. Mechanistically, it avoids the limitations of single technologies and single-groove brackets, effectively improving treatment outcomes and significantly shortening the treatment cycle.
[0026] 2. Three-in-one bracket design: Breaking through the traditional single-groove bracket configuration mode, a single Berger bracket design integrates three torque control systems. For example, the main groove is for medium torque, the side groove is for high torque, and the auxiliary groove is for low torque, realizing the integration of high, medium and low torque functions. One bracket can replace three sets of high, medium and low torque brackets, greatly simplifying the operation process, while significantly reducing the types and quantities of inventory brackets and reducing management costs.
[0027] 3. Highly efficient posterior repositioning of the entire dental arch: The molar alveolar grooves can be made into square tubular structures. During clinical operation, only the orthodontic archwire needs to be inserted, without the need for cumbersome locking or ligation operations. The square tubular structure corresponding to the differential force groove is offset mesially towards the gingiva, so that its extension line forms an acute angle with the straight wire arch groove, forming a mechanical transmission path. When the orthodontic archwire is placed in the differential force groove, the anterior and posterior teeth can easily tilt and move distally synchronously. For mild cases of dental arch protrusion, a non-extraction orthodontic treatment plan can be used to achieve overall posterior repositioning of the entire dental arch, making the treatment plan more minimally invasive.
[0028] 4. Dynamic Balance Orthodontic Treatment: The modified lateral groove (differential dynamic groove) inherits the mesiodistal tilt movement advantages of the Begg technique while introducing torque control. When using square wire orthodontic treatment, it can precisely "control" the torque while maintaining the axial tilt in a "released" state, allowing the teeth to move rapidly in a mesiodistal tilt movement in the cancellous bone with low resistance. This cleverly achieves a dynamic balance between torque control and axial tilt release, improving the accuracy and comfort of orthodontic treatment.
[0029] 5. Dual-wire protection system: Abandoning the mechanical drawbacks of the traditional single-wire retraction mode, the innovative "dual-wire retraction" technology uses the synergistic action of the traction archwire and the rocking archwire. The archwire in the gingival lateral groove can simultaneously retract 6 anterior teeth, while the nickel-titanium rocking archwire in the main groove effectively "controls" the torque, ensuring synchronous retraction of the root and crown. Because the point of application of the traction force is closer to the center of the anterior tooth resistance, it can effectively prevent the reduction or loss of torque during the retraction process, significantly reducing the risks of bone opening, root resorption, etc., and ensuring the safety of orthodontic treatment.
[0030] 6. Filling a technological gap: The world's first self-locking solution of the Begg system fills the gap of Begg brackets without self-locking brackets, overcomes the shortcomings of Begg technology in torque regulation and insufficient three-dimensional control, and expands the function and application scope of Begg orthodontic technology.
[0031] 7. High-efficiency double self-locking design: The unique L-shaped cover plate design allows for simultaneous opening and closing of two grooves, providing a double self-locking function. This design significantly simplifies the operation process, reduces the difficulty and workload of clinical operations, and significantly improves treatment efficiency, saving time and energy for both doctors and patients.
[0032] 8. Stable and Reliable Structure: The innovative structural design, featuring arc-shaped (gate-shaped) elastic fasteners and a fixing groove, effectively enhances tensile strength. This design makes the arc-shaped elastic fasteners robust and durable, ensuring stable sliding of the cover plate and preventing dislocation, thus providing reliable structural protection for the orthodontic process. Attached Figure Description
[0033] Figure 1 A schematic diagram of the structure of the Berger straight wire bow double groove bracket provided by this utility model (without the cover);
[0034] Figure 2 A schematic diagram of the structure of the Berger straight wire bow double groove bracket provided by this utility model (including the cover);
[0035] Figure 3 A front view of the double groove bracket of the Berger straight wire bow provided by this utility model (including the cover);
[0036] Figure 4 A schematic diagram of the structure of the Berger straight wire bow double groove bracket self-locking cover when it is opened, provided by this utility model;
[0037] Figure 5 This is a schematic diagram of the bottom structure of the self-locking cover according to an embodiment of the present invention;
[0038] Figure 6 for Figure 3 Schematic diagram of the cross-sectional structure of line AA (when the self-locking cover is closed);
[0039] Figure 7 for Figure 3 Schematic diagram of the cross-sectional structure of the middle AA line (when the self-locking cover is open);
[0040] Figure 8 A side view of the self-locking cover of the Berger straight wire bow double groove bracket provided by this utility model when separated from the bracket body (when the auxiliary groove is provided);
[0041] Figure 9 This is a schematic diagram of the morphological structure of the side groove and auxiliary groove in an embodiment of the present utility model;
[0042] Figure 10 These are schematic diagrams of different torque grooves in embodiments of this utility model;
[0043] Figure 11 A schematic diagram of the state of the Berger straight wire bow double groove bracket in use (including the cover) provided by this utility model;
[0044] The attached figures are labeled as follows:
[0045] 1. Support body; 101. Main groove; 102. Side groove; 103. First working wing; 104. Second working wing; 105. Unlocking notch; 106. Slide groove; 107. Mounting groove; 108. Elastic locking element;
[0046] 2. Self-locking cover; 201. First cover; 202. Second cover; 203. Slide plate; 204. First limiting protrusion; 205. Second limiting protrusion; 206. Third limiting protrusion;
[0047] 3. Auxiliary grooves. Detailed Implementation
[0048] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.
[0049] It should be noted that in the dental industry, based on the orientation of the teeth, the area closer to the cusp is generally defined as the incisal area. In orthodontics, the portion of the tooth closer to the gum line is defined as the gingival margin. Similarly, in orthodontics, when an attachment is bonded to the tooth surface, the portion closer to the cusp is called the incisal edge, and the portion closer to the gum line is called the gingival margin.
[0050] Shaft tilt: refers to the degree of lateral tilt; torque: refers to the degree of longitudinal tilt.
[0051] The following is combined Figures 1 to 11 The following describes embodiments of the present invention.
[0052] Please see Figure 1 This embodiment discloses a Beger straight wire double groove bracket, including a bracket body 1, a main groove 101, and side grooves 102; the bottom of the bracket body 1 is provided with a base, which is suitable for contacting the teeth; the main groove 101 is formed in the bracket body 1; the side grooves 102 are formed on the gingival or incisal side of the bracket body 1, and their openings face outwards. The cavities of the main groove and the side grooves are different, which specifically means that the axial inclination and torque between the grooves are different.
[0053] In one optional embodiment, the main groove 101 can be a straight wire bow groove, a differential power groove, or other grooves, and is formed on the front side of the support body 1. Similarly, the side groove 102 can also be a straight wire bow groove or a differential power groove, depending on the specific design requirements, and no limitations are made here. When the main groove 101 and the side groove 102 are both straight wire bow grooves or differential power grooves, their torques are different, and the different torques will result in different cavities. In addition, when the main groove 101 is designed as a differential power groove, the groove opening diameter of the differential power groove gradually increases from the middle to the two side ends. When the side groove 102 is designed as a differential power groove, the bottom of the differential power groove is designed as a wedge-shaped structure with a raised middle part and sloping sides, that is, the middle part of the groove bottom is raised, and the two sides are sloping towards the two ends of the groove.
[0054] In this invention, the main groove 101 is designed as a straight wire arch groove, and the side grooves 102 are designed as differential force grooves. The straight wire arch groove data (including axial inclination, torque angle, etc.) are the same as those of conventional grooves. The side grooves 102 are formed on the gingival or incisal sidewall of the bracket body 1. The opening of the main groove 101 is a horizontal opening, and the side grooves 102 can open towards the gingiva or... square.
[0055] It should be noted that differential power grooves are derived from the concept and structure of Begg grooves, which allow teeth to move freely. They can also be modified from straight wire grooves. When the main groove 101 is a differential power groove, only the neck of the groove in the middle area is the same width as a regular groove (straight wire groove), i.e., 0.022 inches (commonly used in China) or 0.018 inches (less commonly used in China). From the neck to both sides, the groove is wider than a standard groove (i.e., wider than 0.022 inches or 0.018 inches), and the width increases with distance from the neck. The two ends of the groove resemble two trumpets, meaning that from the middle of the groove to the two side openings, the distance between the side walls gradually widens, forming a trumpet shape. When the side groove 102 is a differential power groove, the bottom of the groove resembles a hillside, with the peak located in the middle area of the groove, and the sides gradually decreasing in height. Straight wire grooves are the same as commonly used straight wire grooves.
[0056] In one optional embodiment, both the straight wire arch groove and the differential force groove are designed as square tubular structures, suitable for adhesion to the molar position to fix the orthodontic archwire. The square tubular structure corresponding to the differential force groove is designed mesial-gingivally, wherein the extension line of one side port forms an acute angle with the extension line of the same side port of the square tubular structure corresponding to the straight wire arch groove.
[0057] like Figure 11As shown in this embodiment, this type of bracket structure is suitable for use on molars. During clinical operation, only the orthodontic archwire needs to be inserted, without the need for cumbersome locking or ligation operations. The square tube structure corresponding to the differential force groove is offset mesially towards the gingiva, so that its extension line forms an acute angle with the straight wire arch groove, forming a mechanical transmission path. When the orthodontic archwire is placed in the differential force groove, the anterior and posterior teeth can easily tilt and move distally synchronously. For mild cases of dental arch protrusion, a non-extraction orthodontic treatment plan can be adopted to achieve overall posterior displacement of the entire dental arch, making the treatment plan more minimally invasive.
[0058] In one optional embodiment, the main groove 101 is a medium-torque groove, a high-torque groove, or a low-torque groove, and the side grooves 102 are high-torque grooves, medium-torque grooves, or low-torque grooves. The different torques of the brackets facilitate torque control in clinical practice, allowing a single bracket to simultaneously possess grooves with two different axial tilts or two different torques, thus aiding in control during clinical orthodontic treatment.
[0059] In this embodiment, a bracket simultaneously possesses two types of grooves (different axial inclination) and two different types of torque grooves (different torques), allowing for the selection of Begg-like technology or straight wire technology, or the simultaneous use of both technologies, depending on the needs of different treatment stages. During the treatment stage, the advantages of both technologies are effectively integrated, and when used in conjunction with different torques, a "five-in-one, three-dimensional adjustment synchronous" orthodontic mode can be achieved, greatly facilitating clinical application.
[0060] Please see Figure 2 and Figure 3 In one optional embodiment, a self-locking cover 2 is movably disposed on the bracket body 1. The self-locking cover 2 includes two sealing surfaces that respectively cover the opening of the main groove 101 and the outside of the opening of the side groove 102, suitable for simultaneously locking or opening the openings of the main groove 101 and the side groove 102. The self-locking cover 2 also enables self-locking of the first groove 101 and the second groove 102, simplifying the orthodontic procedure, reducing operational difficulty and workload. This overcomes the limitations of brackets with a single groove and the problem that Begg brackets cannot self-lock due to their structural design, thus improving treatment effectiveness and efficiency, and shortening the treatment course.
[0061] Please see Figure 4Furthermore, the self-locking cover 2 is slidably connected to the bracket body 1 and locked and fixed by a locking assembly. The bracket body 1 has a recessed mounting groove 107 at the position corresponding to the self-locking cover 2. The locking assembly is installed in the mounting groove 107. The locking assembly includes an elastic locking member 108. The elastic locking member 108 is door-shaped and horizontally arranged in the mounting groove 107. The upper part protrudes above the mounting groove 107 by a preset height. Two preset depth embedding holes are opened horizontally at intervals on the end face of the mounting groove 107. The two ends of the elastic locking member 108 are respectively inserted and fixed into the two embedding holes. The two sides of the mounting groove 107 form an included angle. The vertical columnar bodies on both sides of the elastic locking member 108 are respectively stuck in the two included angles.
[0062] Furthermore, the mounting groove 107 is disposed on one side of the main groove 101 and communicates with the main groove 101. The depth of the mounting groove 107 is less than the depth of the main groove 101. The mounting groove 107 extends outward by a predetermined width on both sides near the elastic locking member 108, and the extended portion forms an angle. The two sides of the elastic locking member 108 are located at the angle.
[0063] In the above embodiment, the direction of the elastic locking member 108 is the same as the direction of extension of the main groove 101. When the two ends of the elastic locking member 108 are inserted into the bottom of the mounting groove 107, the overall tensile strength of the elastic locking member 108 can be improved. At the same time, when the two ends of the elastic locking member 108 are locked at the angle between the two inclined surfaces, the firmness of the elastic locking member 108 is further strengthened. The stability is good and it is not easy to loosen, so that the self-locking cover 2 is more stable during the sliding process and is not easy to dislodge.
[0064] In the above embodiments, the diameter of the embedded hole can be slightly larger than the outer diameter of the elastic locking member 108, so that the elastic locking member 108 can be tightly inserted into the hole. Alternatively, the elastic locking member 108 can be bonded and fixed into the hole by the action of an adhesive, which can improve the strength and stability of the elastic locking member 108.
[0065] In other embodiments, the elastic locking member 108 may also be configured as multiple arc-shaped surfaces, such as an M-shape or a wave shape.
[0066] In an optional embodiment, a first working wing 103 and a second working wing 104 are respectively provided on both sides of the main groove 101. A sliding groove 106 is provided on the second working wing 104. Both ends of the sliding groove 106 are open structures, and the mounting groove 107 is recessed at the bottom. The side groove 102 is located below the second working wing 104. The self-locking cover 2 is inserted into the sliding groove 106 and is adapted to slide through the sliding groove 106 toward the first working wing 103 to lock the openings of the main groove 101 and the side groove 102 at the same time, or slide backward away from the first working wing 103 into the sliding groove 106 to open the openings of the main groove 101 and the side groove 102 at the same time, thereby realizing the double self-locking function.
[0067] Please see Figure 4 and Figure 5 Furthermore, the self-locking cover 2 includes a first cover 201 and a second cover 202. The first cover 201 and the second cover 202 are L-shaped. The first cover 201 is slidably connected to the slide groove 106 through a sliding component. When the front end of the first cover 201 slides out of the slide groove 106 and abuts against the first working wing 103, its top end face forms an arc-shaped surface with the top end face of the first working wing 103. The second cover 202 has a T-shaped structure. The bottom end of the horizontal part of the second cover 202 is flush with the top end of the side groove 102. The vertical part of the second cover 202 covers part of the opening of the side groove 102.
[0068] Furthermore, the area of the first working wing 103 is smaller than that of the second working wing 104. A notch, called an unlocking notch 105, is provided on the side of the first working wing 103 closest to the main groove 101. Medical personnel can easily open the self-locking cover 2 using clinical tools through the unlocking notch 105. The first cover 201 covers the mounting groove 107 and passes through the sliding groove 106, allowing it to move back and forth on the sliding groove 106. When one end slides out of the sliding groove 106 and slides towards the first working wing 103, fitting against the outer wall of the first working wing 103, it will cover the upper part of the main groove 101. The upper part of the main groove 101 is locked, so that the archwire in the main groove 101 will not easily come out of the groove. At the same time, when the first cover 201 covers the opening of the main groove 101, the second cover 202 will also move forward to cover the outside of the side groove 102, covering part of the opening of the side groove 102. Only partial coverage is needed to prevent the archwire in the side groove 102 from coming out. When it is necessary to adjust the archwire, medical staff can use clinical tools to push the first cover 201 outward through the unlocking notch 105 to open the main groove 101 and the side groove 102 at the same time.
[0069] Please refer to the following: Figure 4In one optional embodiment, the sliding assembly includes a linear slide rail and a sliding plate 203. The slide rail is formed on both side walls of the slide groove 106, and the sliding plate 203 is connected to the bottom of both side walls of the first cover 201. The sliding plate 203 is adapted to the slide rail, allowing the first cover 201 to slide back and forth on the slide groove 106 and move the second cover 202 to simultaneously open or close the openings of the main groove 101 and the side grooves 102. The sliding plate 203 and the slide rail facilitate smooth back and forth sliding of the self-locking cover 2 on the slide groove 106.
[0070] In one optional embodiment, an anti-detachment block is connected to the outer side of the bottom end face of the side groove 102 along the length direction of the side groove 102. The side of the anti-detachment block near the side groove 102 is arranged in a gentle concave arc shape. By providing an anti-detachment block on the outer side of the side groove 102, the self-locking cover 2 can be prevented from being pushed open outward when the bow wire in the side groove 102 is subjected to an outward force.
[0071] Please see Figure 5 , 6 7. In an optional embodiment, a limiting component matching the elastic locking member 108 is provided at the bottom end of the first cover 201 for locking onto the elastic locking member 108 to fix the self-locking cover 2. The limiting component includes a first limiting protrusion 204, a second limiting protrusion 205, and a third limiting protrusion 206. The first limiting protrusion 204, the second limiting protrusion 205, and the third limiting protrusion 206 are respectively spaced from front to back at the bottom end of the first cover 201. The first limiting protrusion 204 is staggered from the second limiting protrusion 205 and the third limiting protrusion 206. The gaps between the first limiting protrusion 204 and the second limiting protrusion 205, and between the second limiting protrusion 205 and the third limiting protrusion 206, are both greater than the outer diameter of the elastic locking member 108. The gaps formed by the first limiting protrusion 204 and the second limiting protrusion 205 are suitable for accommodating the elastic locking member 108 to limit and fix the self-locking cover 2 when the first cover 201 is pushed outward. The gaps formed by the second limiting protrusion 205 and the third limiting protrusion 206 are suitable for accommodating the elastic locking member 108 to limit and fix the self-locking cover 2 when the first cover 201 is pushed inward.
[0072] Furthermore, the first limiting protrusion 204 is wedge-shaped and positioned near one side of the first cover 201. The second limiting protrusion 205 and the third limiting protrusion 206 are arranged in a straight line at intervals in the middle of the first cover 201. The bottom end of the second limiting protrusion 205 is an arc-shaped slope with its inclined surface facing downwards. The gap formed between the second limiting protrusion 205 and the third limiting protrusion 206 is funnel-shaped. By designing the bottom end of the second limiting protrusion 205 as an arc-shaped slope, it is easier to compress the elastic locking member 108 when the first cover 201 slides forward to lock the groove opening. The gap between the second limiting protrusion 205 and the third limiting protrusion 206 is designed as a funnel shape, so that the elastic locking member 108 can be stably accommodated inside the gap. The lower sidewall of the gap also facilitates the compression of the elastic locking member 108 when the first cover 201 slides backward to open the groove opening.
[0073] In this embodiment, by setting the first limiting protrusion 204, the second limiting protrusion 205, and the third limiting protrusion 206, the gap between the first limiting protrusion 204 and the second limiting protrusion 205 can accommodate the elastic locking member 108. This allows the elastic locking member 108 to block the first limiting protrusion 204 when the self-locking cover 2 slides outward to open the openings of the main groove 101 and the side groove 102, thereby fixing the self-locking cover 2 in place. The gap between the second limiting protrusion 205 and the third limiting protrusion 206 can accommodate the elastic locking member 108, allowing the self-locking cover 2 to... 2. When the self-locking cover 2 slides inward to seal the openings of the main groove 101 and the side groove 102, the elastic locking member 108 blocks the third limiting protrusion 206, thereby limiting and fixing the self-locking cover 2. Thus, when the self-locking cover 2 slides back and forth to open or close the openings of the main groove 101 and the side groove 102, the gaps formed between the first limiting protrusion 204 and the second limiting protrusion 205, and the gaps formed between the second limiting protrusion 205 and the third limiting protrusion 206, will be locked onto the elastic locking member 108, thereby locking and fixing the self-locking cover 2. The structure is relatively simple and convenient to use.
[0074] Please refer to the following: Figure 5In the above embodiment, the orientations of the first limiting protrusion 204, the second limiting protrusion 205, and the third limiting protrusion 206 are perpendicular to the orientation of the curved section of the elastic locking member 108. The first limiting protrusion 204 is located on one side of the bottom end of the first cover 201, and can slightly avoid the elastic locking member 108 when the self-locking cover 2 is assembled, so as to facilitate the sliding of the first cover 201. The first limiting protrusion 204 is wedge-shaped, and the side that fits against the elastic locking member 108 is an arc-shaped slope. During assembly, the second limiting protrusion 205 is located directly above the elastic locking member 108. When the first cover 201 slides back and forth, the second limiting protrusion 205 will press the elastic locking member 108 back and forth. When the elastic locking member 108 is stuck between the first limiting protrusion 204 and the second limiting protrusion 205 or between the second limiting protrusion 205 and the third limiting protrusion 206, the first cover 201 will be locked and fixed.
[0075] Please see Figure 8 and Figure 9 In an optional embodiment, an auxiliary groove 3 is provided on the other side of the bracket body 1 corresponding to the side groove 102. The auxiliary groove 3 can be a straight wire groove or a differential force groove, suitable for a certain stage of treatment to work synergistically with the main side groove. Specifically, when the side groove 102 is located on the gingival sidewall of the bracket body 1, the auxiliary groove 3 is located on the incisal sidewall of the bracket body 1 corresponding to the side groove 102. Conversely, when the side groove 102 is located on the incisal sidewall of the bracket body 1, the auxiliary groove 3 is located on the gingival sidewall of the bracket body 1. The middle part of the bottom of the auxiliary groove 3 protrudes towards the groove opening to form two inclined surfaces that slope towards both ends of the groove. In this way, the teeth can be tilted and moved under the action of the archwire. The auxiliary groove 3 is designed to facilitate its selective use in conjunction with the main groove 101 and the side groove 102, offering greater flexibility and practicality.
[0076] Furthermore, the auxiliary groove 3 can be designed as a high-torque groove, a medium-torque groove, or a low-torque groove.
[0077] Please see Figure 10 Specifically, the auxiliary groove 3 is designed as a high-torque groove, the main groove 101 is designed as a low-torque groove, and the side groove 102 is designed as a medium-torque groove.
[0078] In other embodiments, the auxiliary groove 3 can be designed as a medium torque groove, the main groove 101 as a high torque groove, and the side groove 102 as a low torque groove, or other combinations thereof, which can be adjusted at will, as long as the torques of the three grooves are different. The use of three types of torque grooves increases the variety of grooves, but also adds complexity to clinical applications. For example, if individual grooves fall off or are lost during treatment, all three types of grooves need to be readily available for replacement. This utility model integrates three torque control systems into one set of Berger straight wire arch grooves, such as a main groove for medium torque, a side groove for high torque, and an auxiliary groove for low torque, achieving integrated high, medium, and low torque functions. One set of grooves can replace three sets of high, medium, and low torque grooves, greatly simplifying the operation process and significantly reducing the types and quantities of grooves in inventory, thus lowering management costs.
[0079] Although the present invention has been described using the above preferred embodiments, it is not intended to limit the scope of protection of the present invention. Any changes and modifications made by those skilled in the art to the above embodiments without departing from the spirit and scope of the present invention shall still fall within the scope of protection of the present invention.
Claims
1. A Berger straight wire bow double groove bracket, characterized in that, include: The bracket body has a base at its bottom, which is suitable for contacting with the teeth; The main groove is formed on the front side of the bracket body; Side grooves are formed on the gingival or incisional side of the bracket body, with their openings facing outwards. The cavities of the main groove and the side groove are different.
2. The Berger straight wire bow double groove bracket according to claim 1, characterized in that, The main groove is a straight wire bow groove or a differential power groove, and the side groove is a straight wire bow groove or a differential power groove.
3. The Berger straight wire bow double groove bracket according to claim 2, characterized in that, The main trench is a differential power trench, and its opening diameter gradually increases from the middle to the two side ends. Alternatively, the side trench is a differential power trench, and its bottom is designed as a wedge-shaped structure with a raised middle part and sloping sides. That is, the middle part of the bottom of the trench is raised, and the two sides are sloping towards the two ends of the trench.
4. The Berger straight wire bow double groove bracket according to claim 1, characterized in that, Both the straight wire arch groove and the differential force arch groove are designed as square tubular structures, suitable for adhesion to the molar position to fix the orthodontic archwire. The square tubular structure corresponding to the differential force arch groove is designed mesial-gingivally, and the extension line of one end of the differential force arch groove forms an acute angle with the extension line of the same end of the square tubular structure corresponding to the straight wire arch groove.
5. The Berger straight wire bow double groove bracket according to claim 1, characterized in that, The main groove is a medium torque groove, a high torque groove, or a low torque groove, and the side groove is a high torque groove, a medium torque groove, or a low torque groove.
6. The Berger straight wire bow double groove bracket according to claim 1, characterized in that, A self-locking cover is movably provided on the main body of the bracket. The self-locking cover includes two sealing surfaces that cover the opening of the main groove and the outside of the opening of the side groove, respectively, which are suitable for locking or opening the openings of the main groove and the side groove at the same time.
7. The Berger straight wire bow double groove bracket according to claim 6, characterized in that, The self-locking cover is slidably connected to the bracket body and locked and fixed by a locking assembly. The bracket body has a recessed mounting groove at the position corresponding to the self-locking cover. The locking assembly is installed in the mounting groove. The locking assembly includes an elastic locking member. The elastic locking member is shaped like a door and is horizontally arranged in the mounting groove. The upper part of the elastic locking member protrudes above the mounting groove by a preset height. Two preset depth embedding holes are opened horizontally at intervals on the end face of the mounting groove. The two ends of the elastic locking member are respectively inserted and fixed into the two embedding holes. The two sides of the mounting groove form an included angle. The two vertical columnar parts on both sides of the elastic locking member are respectively locked in the two included angles.
8. The Berger straight wire bow double groove bracket according to claim 6 or 7, characterized in that, The self-locking cover includes a first cover covering the main groove and a second cover outside the side groove. The first cover and the second cover are arranged in an L-shape, which is suitable for the self-locking cover to slide back and forth on the bracket body to simultaneously lock or open the openings of the main groove and the side groove.
9. The Berger straight wire bow double groove bracket according to claim 1, characterized in that, The bracket body is further provided with auxiliary grooves on the incisional or gingival sidewalls corresponding to the lateral grooves. The auxiliary grooves are straight wire grooves or differential force grooves, which are suitable for synergistic effects with the main grooves and / or lateral grooves at a certain stage of treatment. The straight wire bow groove is a high torque groove, a medium torque groove, or a low torque groove, and the differential power groove is a high torque groove, a medium torque groove, or a low torque groove.
10. The Berger straight wire bow double groove bracket according to claim 1, characterized in that, The lower sidewall of the side groove is concave arc-shaped.