A new type of orthodontic bracket

Abstract

This utility model discloses a novel orthodontic bracket, belonging to the field of orthodontic bracket technology. It includes a base, on the top surface of which are mounted two pairs of L-shaped blocks, with the shorter end of each L-shaped block connected to the base. One L-shaped block in the pair has a square hole, and the other L-shaped block in the pair has a first cylindrical hole and a second cylindrical hole, which are connected. A pressure rod is provided between the pair of L-shaped blocks. A limiting rod is installed at one end of the pressure rod, and a fixing rod is installed at the other end. The limiting rod slides within the first cylindrical hole, the pressure rod slides within the first and second cylindrical holes, and the fixing rod slides within the first, second, and square holes, engaging with the square hole. The pressure rod compresses the archwire. This technical solution eliminates the need for ligatures or ligature rings to fix the archwire, simplifying the operation process, reducing the doctor's steps, and shortening the patient's single visit time.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic bracket technology, specifically a novel orthodontic bracket. Background Technology

[0002] In orthodontic treatment, orthodontic brackets are the core component for achieving precise tooth movement. They are fixed to the labial and buccal surfaces of the teeth with adhesive, and the grooves in the center of the brackets are used to accommodate the archwires. The archwires are then confined within the grooves using specific fixation methods. Currently, orthodontic brackets are widely used in the correction of various dental malocclusions, such as malocclusion, large gaps between teeth, and protruding teeth.

[0003] However, in simple orthodontic treatment scenarios for mild to moderate dental malocclusion, existing brackets still have significant fitting defects, especially the limitations of traditional ligated brackets: these brackets lack a locking structure and rely entirely on ligature wires or ligature rings to fix the archwire within the slot. Specifically, the dentist must first embed the archwire into the slot of the bracket, then use a thin, soft metal ligature wire to wrap and bind the archwire to the bracket, or apply an elastic rubber ligature ring. The mechanical binding force of the ligature wire and the elastic contraction force of the ligature ring firmly fix the archwire in the slot, preventing it from slipping out or shifting. This fixation method relying on ligatures exposes the following problems in simple orthodontic scenarios: although simple orthodontic cases are less complex, the ligation operation of traditional brackets still requires meticulous operation. When wrapping the ligature wire, the force must be controlled to avoid being too tight or too loose, and when applying the ligature ring, it must be ensured that it completely covers the edge of the slot. Therefore, the ligation operation of a single tooth takes a long time, which prolongs the patient's single treatment time and increases the workload of the dentist. Utility Model Content

[0004] The purpose of this invention is to provide a novel orthodontic bracket to solve the problems mentioned in the background art.

[0005] In view of the above problems, the technical solution proposed by this utility model is as follows: A novel orthodontic bracket includes a base. Two pairs of L-shaped blocks are mounted on the top surface of the base, with the shorter end of each L-shaped block connected to the base. One L-shaped block in each pair has a square hole, and the other L-shaped block in the pair has a first cylindrical hole and a second cylindrical hole, which are connected. A pressure rod is provided between the pair of L-shaped blocks. A limiting rod is mounted on one end of the pressure rod, and a fixing rod is mounted on the other end. The limiting rod slides within the first cylindrical hole, the pressure rod slides within the first and second cylindrical holes, and the fixing rod slides within the first, second, and square holes, engaging with the square hole. The pressure rod compresses the archwire, and the base provides the installation foundation for the entire bracket. Two pairs of L-shaped blocks on its top surface form a support structure. The square holes in each pair of L-shaped blocks, which are connected to the first and second cylindrical holes, provide sliding and engagement space for the pressure rod, the limiting rod, and the fixing rod. The limiting rod and the fixing rod at both ends of the pressure rod slide in their corresponding holes. When the fixing rod engages with the square hole, it can stably fix the pressure rod between the two pairs of L-shaped blocks, thereby generating a stable compressive force on the archwire on the top surface of the base, preventing the archwire from coming out or shifting. This eliminates the need for traditional ligature wires or ligature rings, simplifying the archwire fixation process, reducing the number of steps for doctors, and shortening the time for patients to visit a single time, thus reducing the workload of doctors.

[0006] Furthermore, a sliding rod is installed inside the square hole, and an elastic block is installed at one end of the sliding rod. The elastic block has a circular groove inside and a conical groove on its side. The circular groove and the conical groove are connected, and an arc-shaped protrusion is present at the connection between the circular groove and the conical groove. The four sides of the fixing rod have sliding grooves, one end of which is open, and a fixing block is installed at the other end of which. Arc-shaped grooves are formed on both sides of the fixing block. The sliding rod slides in the sliding groove, and the fixing block slides through the conical groove into the circular groove. The arc-shaped protrusion and the arc-shaped groove engage. The sliding rod inside the square hole cooperates with the sliding grooves on the four sides of the fixing rod to restrict the sliding direction of the fixing rod within the square hole, preventing deviation during sliding. The conical groove of the elastic locking block facilitates the smooth entry of the fixing block of the fixing rod. After the fixing block slides into the circular groove, the arc-shaped protrusion at the connection between the circular groove and the conical groove engages with the arc-shaped grooves on both sides of the fixing block, further enhancing the connection stability between the fixing rod and the square hole. This prevents the fixing rod from coming out of the square hole under force, thereby ensuring the continuous and stable squeezing force of the pressure rod on the archwire, guaranteeing the archwire fixation effect, and avoiding the impact of loose fixation on the orthodontic treatment process.

[0007] Furthermore, the width of the slide rod is the same as the width of the slide groove, and the width of the slide rod is greater than the width of the elastic block. The consistent width of the slide rod and the slide groove allows the slide rod to fit tightly against the groove wall when sliding in the groove, preventing gaps between the slide rod and the groove from causing the fixed rod to wobble and ensuring the accurate sliding direction of the fixed rod. The width of the slide rod is greater than the width of the elastic block to prevent the elastic block from being too wide and affecting the smooth entry of the fixed block.

[0008] Furthermore, the diameter of the first cylindrical hole is larger than the diameter of the second cylindrical hole, the diameter of the limiting rod is the same as the diameter of the first cylindrical hole, and the diameter of the pressure rod is the same as the diameter of the second cylindrical hole. This allows the limiting rod to slide stably in the first cylindrical hole without entering the second cylindrical hole, preventing the limiting rod from wobbling due to its small diameter. At the same time, when the pressure rod slides in the second cylindrical hole, it fits tightly against the hole wall, ensuring smooth sliding of the pressure rod. This dimensional fit also limits the sliding stroke of the pressure rod.

[0009] Furthermore, a grasping block is installed on the free end of the limiting rod. The grasping block has a pair of grasping grooves on its side, and the diameter of the grasping block is larger than the diameter of the limiting rod. The grasping block at the free end of the limiting rod provides a convenient point of force application for the doctor to operate the pressure rod. The grasping grooves on the side of the grasping block make it easy for the doctor to use tools such as tweezers to hold the rod, preventing the tools from slipping during operation. The larger diameter of the grasping block than the diameter of the limiting rod can prevent the grasping block from sliding into the first cylindrical hole, ensuring that the doctor can always control the movement of the limiting rod and the pressure rod through the grasping block. Through the cooperation of the grasping block and the grasping grooves, the doctor can push or pull the pressure rod more easily and accurately, reducing the difficulty of operation, reducing the operation time, further reducing the doctor's operational burden, and improving the efficiency of diagnosis and treatment.

[0010] Furthermore, the bottom surface of the base is an arc-shaped surface adapted to the labial and buccal surfaces of the teeth, with a radius of 3-5mm. This allows the bottom surface of the base to closely match the arc contour of the labial and buccal surfaces of the teeth, increasing the contact area between the base and the teeth. This allows the adhesive to be filled more evenly between the base and the teeth, improving the stability of the base fixation. At the same time, the size of this arc-shaped surface is adapted to the curvature of the labial and buccal surfaces of most teeth, avoiding uneven local force due to the mismatch between the base's bottom shape and the teeth. This prevents the base from loosening or shifting during orthodontic treatment, ensuring that the brackets are always in a stable working position, providing stable support for the archwire, and guaranteeing the orthodontic effect.

[0011] Furthermore, a groove is provided on the side of the pressure bar near the top surface of the base. When the pressure bar compresses the archwire, the archwire is embedded in the groove. The groove wall provides lateral restraint to the archwire, preventing it from sliding left and right under the pressure bar. At the same time, it increases the contact area between the pressure bar and the archwire, making the compressive force of the pressure bar on the archwire more evenly distributed on the surface of the archwire. This prevents excessive local pressure from causing archwire deformation or damage, ensuring that the archwire can guide the teeth to move in the preset direction under stable pressure, thereby improving the accuracy and effectiveness of orthodontic treatment.

[0012] Compared with the prior art, the beneficial effects of this utility model are: the new orthodontic bracket has a base and two pairs of L-shaped blocks to form a basic support structure. The pressure rod, limiting rod and fixing rod slide in the corresponding holes and are engaged with the square holes through the fixing rod. The archwire can be fixed without ligature wires or ligature rings, which simplifies the operation process, reduces the number of operation steps for doctors and shortens the time for patients to visit once. Attached Figure Description

[0013] Figure 1 This is a three-dimensional structural schematic diagram of the novel orthodontic bracket disclosed in an embodiment of the present utility model; Figure 2 This is an exploded structural diagram of the novel orthodontic bracket disclosed in an embodiment of the present invention; Figure 3 for Figure 2 Enlarged schematic diagram of structure A in the middle; Figure 4 This is a cross-sectional structural diagram of the novel orthodontic bracket disclosed in an embodiment of the present utility model; Figure 5 for Figure 4 A magnified schematic diagram of the B-structure.

[0014] In the diagram: 1. Base; 2. L-shaped block; 3. Pick-up block; 4. Pressure rod; 5. Pick-up groove; 6. First cylindrical hole; 7. Square hole; 8. Limiting rod; 9. Fixing rod; 10. Slide groove; 11. Fixing block; 12. Arc-shaped groove; 13. Conical groove; 14. Second cylindrical hole; 15. Slide rod; 16. Elastic locking block; 17. Circular groove; 18. Arc-shaped protrusion. Detailed Implementation

[0015] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0016] Please see Figures 1-5This utility model provides a technical solution: a novel orthodontic bracket, including a base 1. Two pairs of L-shaped blocks 2 are mounted on the top surface of the base 1, with the shorter end of each L-shaped block 2 connected to the base 1. One L-shaped block 2 in the pair has a square hole 7, and the other L-shaped block 2 in the pair has a first cylindrical hole 6 and a second cylindrical hole 14, which are connected. A pressure rod 4 is provided between the pair of L-shaped blocks 2. A limiting rod 8 is installed at one end of the pressure rod 4, and a fixing rod 9 is installed at the other end. The limiting rod 8 slides within the first cylindrical hole 6, the pressure rod 4 slides within the first cylindrical hole 6 and the second cylindrical hole 14, and the fixing rod 9 slides within the first cylindrical hole 6, the second cylindrical hole 14, and the square hole 7, and... The square hole 7 engages, and the pressure rod 4 compresses the archwire. First, the base 1 is fixed to the labial and buccal surfaces of the teeth with adhesive. Then, the archwire is placed on the top surface of the base 1 in the area between the two pairs of L-shaped blocks 2. Next, the pressure rod 4 is pushed, causing the limiting rod 8 at one end of the pressure rod 4 to slide in the first cylindrical hole 6 of one of the L-shaped blocks 2. At the same time, the pressure rod 4 slides in the first cylindrical hole 6 and the second cylindrical hole 14. The fixing rod 9 at the other end of the pressure rod 4 slides synchronously in the first cylindrical hole 6 and the second cylindrical hole 14. As the pressure rod 4 is continuously pushed, the fixing rod 9 gradually slides into the square hole 7 of the other pair of L-shaped blocks 2. When the fixing rod 9 is fully engaged with the square hole 7, the pressure rod 4 is stably fixed. At this time, the bottom surface of the pressure rod 4 contacts the archwire and exerts a compressive force on the archwire, thus fixing the archwire.

[0017] As an embodiment of this utility model, a sliding rod 15 is further installed in the square hole 7. An elastic block 16 is installed at one end of the sliding rod 15. The elastic block 16 has a circular groove 17 inside and a conical groove 13 on the side. The circular groove 17 and the conical groove 13 are connected. An arc-shaped protrusion 18 is provided at the connection between the circular groove 17 and the conical groove 13. The four sides of the fixing rod 9 have sliding grooves 10. One end of the sliding groove 10 is open. A fixing block 11 is installed at the other end of the sliding groove 10. Arc-shaped grooves 12 are provided on both sides of the fixing block 11. The sliding rod 15 slides in the sliding groove 10. The fixing block 11 slides through the conical groove 13 into the circular groove 17. The arc-shaped protrusion 18 and the arc-shaped groove 12 engage. When the fixing rod 9 slides into the square hole 7, one end of the sliding rod 15 in the square hole 7 will first align with the fixing rod 9. The open ends of the four sliding grooves 10 are then opened. As the fixing rod 9 continues to slide, the sliding rod 15 gradually enters the sliding groove 10 and slides within it. At the same time, the fixing block 11 at the end of the fixing rod 9 contacts the conical groove 13 on the side of the elastic locking block 16. Since the conical groove 13 has an inclined surface, the fixing block 11 will squeeze the inner wall of the conical groove 13 during the sliding process, causing the elastic locking block 16 to undergo elastic deformation and the opening of the conical groove 13 to expand. Subsequently, the fixing block 11 continues to slide and passes through the conical groove 13 into the circular groove 17. At this time, the squeezing effect of the elastic locking block 16 disappears and the deformation is restored. The arc-shaped protrusion 18 at the connection between the circular groove 17 and the conical groove 13 will be embedded in the arc-shaped grooves 12 on both sides of the fixing block 11, realizing the engagement of the arc-shaped protrusion 18 and the arc-shaped groove 12, further fixing the position of the fixing rod 9.

[0018] As an embodiment of this utility model, the width of the slide rod 15 is the same as the width of the slide groove 10. The width of the slide rod 15 is greater than the width of the elastic block 16. When the slide rod 15 slides in the slide groove 10, since the width of the slide rod 15 is the same as the width of the slide groove 10, the two side walls of the slide rod 15 will be in close contact with the two side walls of the slide groove 10, and no lateral sway will occur, thereby driving the fixed rod 9 to always slide in a straight line.

[0019] In one embodiment of this utility model, the diameter of the first cylindrical hole 6 is larger than the diameter of the second cylindrical hole 14, the diameter of the limiting rod 8 is the same as the diameter of the first cylindrical hole 6, and the diameter of the pressure rod 4 is the same as the diameter of the second cylindrical hole 14. When the pressure rod 4 is pushed to slide, the limiting rod 8 at one end of the pressure rod 4 will slide inside the first cylindrical hole 6. Since the diameter of the limiting rod 8 is the same as the diameter of the first cylindrical hole 6, the limiting rod 8 can slide tightly against the inner wall of the first cylindrical hole 6. And because the diameter of the first cylindrical hole 6 is larger than the diameter of the second cylindrical hole 14, the limiting rod 8 cannot enter the second cylindrical hole 14 and can only move inside the first cylindrical hole 6. At the same time, because the diameter of the pressure rod 4 is the same as the diameter of the second cylindrical hole 14, it will slide tightly inside the second cylindrical hole 14 and will not have lateral displacement.

[0020] As an embodiment of this utility model, the free end of the limiting rod 8 is further equipped with a picking block 3. The side of the picking block 3 has a pair of picking grooves 5, and the diameter of the picking block 3 is larger than the diameter of the limiting rod 8. When it is necessary to push the pressure rod 4, the doctor first puts the two clamps of the forceps into the pair of picking grooves 5 on the side of the picking block 3 to clamp the picking block 3. Then, a force is applied in the direction of the square hole 7, and the picking block 3 drives the limiting rod 8 to slide in the first cylindrical hole 6, thereby driving the pressure rod 4 and the fixing rod 9 to slide synchronously. Since the diameter of the picking block 3 is larger than the diameter of the limiting rod 8, when the picking block 3 contacts the surface of the L-shaped block 2 with the first cylindrical hole 6, the limiting rod 8 cannot continue to slide forward. At this time, the fixing rod 9 can just slide into the square hole 7. When it is necessary to disassemble the pressure rod 4, the doctor also clamps the picking groove 5 of the picking block 3 and applies a reverse pulling force, which can drive the limiting rod 8, the pressure rod 4 and the fixing rod 9 to slide in the opposite direction, so that the fixing rod 9 can disengage from the square hole 7.

[0021] As an embodiment of this utility model, the bottom surface of the base 1 is an arc-shaped surface adapted to the labial and buccal surfaces of the teeth, and the radius of the arc-shaped surface is 3-5mm. Before fixing the base 1, the base 1 with a bottom arc-shaped surface radius of 3-5mm is selected according to the curvature of the labial and buccal surfaces of the patient's teeth. Then, adhesive is evenly applied to the arc-shaped bottom surface of the base 1. Then, the arc-shaped bottom surface of the base 1 is attached to the labial and buccal surfaces of the teeth. Since the arc-shaped surface is adapted to the labial and buccal surfaces of the teeth, the bottom surface of the base 1 will be in close contact with the tooth surface, and the adhesive will fill the tiny gaps between the base 1 and the teeth. After the adhesive has cured, the base 1 will be stably connected to the teeth through the adhesive. The large-area contact of the arc-shaped surface can disperse the external force on the base 1 and prevent the base 1 from falling off or shifting due to excessive local force.

[0022] As an embodiment of this utility model, the pressure bar 4 has a pressure groove on the side near the top surface of the base 1. When the pressure bar 4 slides between the two pairs of L-shaped blocks 2 and gradually approaches the archwire, the pressure groove on the bottom surface of the pressure bar 4 will first align with the position of the archwire. As the pressure bar 4 continues to move downward or forward, the archwire will gradually enter the pressure groove. When the fixing rod 9 engages with the square hole 7 to fix the pressure bar 4, the two side walls of the pressure groove will be in close contact with the two sides of the archwire, restricting the lateral movement of the archwire. At the same time, the bottom surface of the pressure groove will contact the top surface of the archwire and apply a squeezing force. Since the pressure groove increases the contact area, the squeezing force will be evenly transmitted to the surface of the archwire. The archwire remains stable in the pressure groove and will not slip or deform, thus stably generating orthodontic force on the teeth.

[0023] It should be noted that all standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The control method is automatic control through a control cabinet. The control circuit can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Furthermore, since this application is mainly used to protect mechanical devices, this application will not explain the control method and circuit connection in detail.

Claims

1. A novel orthodontic bracket, characterized by, Includes a base (1), on the top surface of which are mounted two pairs of L-shaped blocks (2), with the shorter end of each L-shaped block (2) connected to the base (1). One of the L-shaped blocks (2) in a pair has a square hole (7), and the other L-shaped block (2) in a pair has a first cylindrical hole (6) and a second cylindrical hole (14), which are connected. The pair of L-shaped blocks (2) are connected to each other. A pressure rod (4) is provided. A limit rod (8) is installed at one end of the pressure rod (4), and a fixing rod (9) is installed at the other end of the pressure rod (4). The limit rod (8) slides in the first cylindrical hole (6), the pressure rod (4) slides in the first cylindrical hole (6) and the second cylindrical hole (14), and the fixing rod (9) slides in the first cylindrical hole (6), the second cylindrical hole (14) and the square hole (7) and engages with the square hole (7). The pressure rod (4) squeezes the bowwire.

2. The novel orthodontic bracket according to claim 1, characterized in that, A sliding rod (15) is installed in the square hole (7). An elastic block (16) is installed at one end of the sliding rod (15). The elastic block (16) has a circular groove (17) inside and a conical groove (13) on the side. The circular groove (17) and the conical groove (13) are connected. An arc-shaped protrusion (18) is provided at the connection between the circular groove (17) and the conical groove (13). The four sides of the fixing rod (9) have sliding grooves (10). One end of the sliding groove (10) is open. A fixing block (11) is installed at the other end of the sliding groove (10). Arc-shaped grooves (12) are provided on both sides of the fixing block (11). The sliding rod (15) slides in the sliding groove (10). The fixing block (11) slides through the conical groove (13) into the circular groove (17). The arc-shaped protrusion (18) and the arc-shaped groove (12) engage.

3. The novel orthodontic bracket according to claim 2, characterized in that, The width of the slide bar (15) is the same as the width of the slide groove (10), and the width of the slide bar (15) is greater than the width of the elastic block (16).

4. The novel orthodontic bracket according to claim 1, characterized in that, The diameter of the first cylindrical hole (6) is greater than the diameter of the second cylindrical hole (14), the diameter of the limiting rod (8) is the same as the diameter of the first cylindrical hole (6), and the diameter of the pressure rod (4) is the same as the diameter of the second cylindrical hole (14).

5. A novel orthodontic bracket according to claim 1, characterized in that, The free end of the limiting rod (8) is equipped with a picking block (3), the side of the picking block (3) has a pair of picking grooves (5), and the diameter of the picking block (3) is larger than the diameter of the limiting rod (8).

6. A novel orthodontic bracket according to claim 1, characterized in that, The bottom surface of the base (1) is an arc-shaped surface that fits the labial and buccal surfaces of the teeth, and the radius of the arc-shaped surface is 3-5mm.

7. A novel orthodontic bracket according to claim 1, characterized in that, The pressure rod (4) has a pressure groove on one side near the top surface of the base (1).

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