Mesio-inclined molar uprighting device

Abstract

The utility model relates to orthodontic technical field, more specifically, it relates to a mesial inclination molar righting device, including arch wire, push spring, the force increasing mechanism of push spring compression amount can be adjusted, the buccal tube installed on the inclination molar and the anchorage installed in oral cavity, the both ends of arch wire are installed on buccal tube and anchorage respectively, push spring is sleeved on arch wire, and push spring is in abutment with buccal tube, and force increasing mechanism is installed on arch wire or is installed in oral cavity, when orthodontic treatment, buccal tube is installed on inclination molar, and anchorage is installed in oral cavity, and the both ends of arch wire are installed on buccal tube and anchorage respectively, and arch wire exerts vertical force to inclination molar;Make push spring and buccal tube abut, and the force of moving away from each other provided by push spring to inclination molar is adjusted with force increasing mechanism;The device can be made in advance, and after installation, the compression amount of push spring can be adjusted through force increasing mechanism to complete force adding, and the doctor does not need to bend at the chair, so that it is simple to operate, and the chair time of patient and doctor is saved.

Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, and more specifically, to a mesial tilting molar straightening device. Background Technology

[0002] Currently, commonly used vertical mesial tilting devices are generally used in conjunction with implant anchorages located in the mandibular ramus. Due to the limitation of vertical space, implant anchorage is difficult to implant. In addition, the location is inside the oral cavity, which makes it difficult to clean and is subject to occlusal interference, which can easily irritate the mucosa and cause inflammation around the implant anchorage, leading to implant anchorage dislodgement. Furthermore, the archwires are all bent by clinicians at the chairside, and there are currently no ready-made commercial products available for clinical use.

[0003] Patent CN215306861U discloses a device for uprighting mesial tilted molars in orthodontic treatment, comprising a lingual button, a vertical spring, a main archwire, a ligature wire, and several brackets. The lingual button is installed on the mesial tilted molar. The vertical spring is made of Australian wire with a diameter of 0.016 inches, with curved portions at both ends for connection, and the middle portion of the spring is bent into a loop. This invention applies an upright corrective force to the mesial tilted molar through the elastic deformation of the vertical spring against the lingual button. This invention is simple and efficient, enabling effective orthodontic treatment of mesial tilted molars. However, in the above solution, clinicians still need to bend the archwire at the chairside, which is time-consuming and laborious. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, which requires bending archwires and is time-consuming and labor-intensive, and to provide a mesial tilting molar straightening device that can be prefabricated and does not require clinicians to bend it at the chairside.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: A mesial tilted molar straightening device is provided, comprising an archwire, a push spring, a force-applying mechanism capable of adjusting the compression of the push spring, a buccal tube mounted on the tilted molar, and an anchor mounted in the oral cavity. The two ends of the archwire are respectively mounted on the buccal tube and the anchor. The push spring is sleeved on the archwire and abuts against the buccal tube. The force-applying mechanism is mounted on the archwire or installed in the oral cavity.

[0006] This utility model relates to a mesial tilted molar straightening device. Before treatment, a push spring is installed on the archwire, and a force-applying mechanism is installed on the archwire or inside the oral cavity. During orthodontic treatment, a buccal tube is installed on the tilted molar, and an anchorage is installed inside the oral cavity. The two ends of the archwire are respectively installed on the buccal tube and the anchorage. By adjusting the relative positions of the buccal tube and the anchorage, the degree of bending of the archwire under force is adjusted, so that the archwire applies sufficient vertical force to the tilted molar through the buccal tube. The push spring is then brought into contact with the buccal tube, and the compression of the push spring is adjusted using the force-applying mechanism until the push spring can provide sufficient distal force to the tilted molar. The adjustment of the push spring is then stopped, and the installation is complete. This device can be prefabricated. After installation, only the compression of the push spring needs to be adjusted through the force-applying mechanism to complete the force application. It does not require the doctor to bend the spring at the chairside, making the operation simple and saving chairside time for both the patient and the doctor.

[0007] Furthermore, the force-applying mechanism includes a stop clip that can move or be fixed on the archwire. The stop clip is fitted onto the archwire, and the end of the push spring away from the buccal tube abuts against the stop clip. During orthodontic treatment, the push spring and stop clip are fitted onto the archwire, and the two ends of the archwire are respectively installed on the buccal tube and the anchorage. The stop clip is in the open state. The stop clip is moved towards the buccal tube, compressing the push spring. The position of the stop clip is adjusted so that the push spring applies the required distal force to the tilted molar through the buccal tube. The stop clip is then closed, completing the installation. When force needs to be applied during a follow-up visit, the stop clip is opened, the stop clip is moved, and the push spring is compressed so that the push spring applies the required distal force to the tilted molar again. The operation is simple and quick.

[0008] Furthermore, there are two or more stop latches, all located in front of the buccal tube. "In front" refers to the position near the central incisors. During the first application of force, only the foremost stop latch closes, while the others remain open. The push spring abuts against the rearmost stop latch, and all stop latches abut against each other, with all stop latches and the buccal tube jointly compressing the push spring. During the second application of force, the foremost stop latch is not released; the stop latches adjacent to it are adjusted until the rearmost stop latch compresses the push spring sufficiently, closing the stop latches adjacent to the foremost stop latch. This process is repeated for the third and subsequent applications of force. Each time a different stop latch is moved to compress the push spring, the stop latch is closed, completing the application of force. This prevents damage to the stop latches caused by repeatedly opening and closing a single stop latch.

[0009] Furthermore, the stop buckle is a cylindrical tube structure, and a slit extending axially along the side wall of the stop buckle is provided. The slit penetrates both the radial and axial thicknesses of the side wall of the stop buckle. The diameter of the stop buckle when open is larger than the diameter of the archwire, and the diameter of the stop buckle when closed is equal to the diameter of the archwire. When closing the stop buckle, the sides of the stop buckle located on both sides of the slit are clamped to close the slit, thereby closing the stop buckle and clamping the archwire to fix the stop buckle. When opening the stop buckle, the slit of the stop buckle and the side wall of the stop buckle opposite the slit are clamped to deform the stop buckle, open the slit, increase the diameter of the stop buckle, and restore it to a state where it can move along the archwire.

[0010] Furthermore, the archwire passes through the cheek tube, and the end of the archwire passing through the cheek tube has a first bend. When installing the archwire, after passing one end of the archwire through the cheek tube, the end of the archwire is bent back to form the first bend. The first bend serves to limit the archwire and prevent it from falling off the cheek tube.

[0011] Furthermore, the other end of the archwire is provided with a second bend, which has a forward-facing opening. The head of the abutment is engaged in the opening of the second bend. "Forward" refers to the direction of the central incisor. One end of the archwire is pre-bent to form a second bend that can engage with the abutment. During archwire installation, the abutment is placed in the oral cavity, and the second bend is engaged with the abutment to prevent the archwire from falling off.

[0012] Furthermore, the anchorage is installed in front of the inclined molar. Anchorages are usually placed in the maxillary ramus, located deep in the oral cavity, which is difficult to implant and clean after installation. Placing the anchorage in front of the inclined molar simplifies the operation, makes cleaning easier, reduces the possibility of inflammation around the anchorage, and increases the ease of implantation and post-implantation stability.

[0013] Furthermore, the anchorage is installed between the roots of the first and second premolars. Implanting the anchorage between the roots of the first and second premolars is simple, easy to clean, and offers both ease of implantation and high post-implantation stability.

[0014] Furthermore, the archwire is a round wire. In the initial stage of orthodontic treatment, using a thinner round wire is less likely to damage the oral cavity; it is more flexible, which is beneficial for moving tilted molars; at the same time, it is convenient to insert the archwire into the buccal tube.

[0015] Furthermore, the archwire is a square wire. In the later stages of orthodontic treatment, a thicker square wire is used because it has high rigidity, good control, and facilitates adjustment of the curvature of tilted molars. This is beneficial for later root control procedures, resulting in straighter teeth and improved orthodontic outcomes.

[0016] Compared with the prior art, the beneficial effects of this utility model are: This utility model of a mesial tilting molar straightening device has the following advantages: 1. It can be prefabricated, and after installation, the force can be applied simply by adjusting the compression of the push spring through the force-applying mechanism. This eliminates the need for clinicians to bend the push spring at the chairside, reducing the difficulty of operation for doctors and saving chairside time for both patients and doctors; 2. Each time a different stop buckle is moved to compress the push spring, the stop buckle is closed to complete the force application, which can prevent damage to the stop buckle caused by repeatedly opening and closing it; 3. The anchorage is located between the roots of the first and second premolars, making implantation easier, easier to clean after implantation, and highly stable. Attached Figure Description

[0017] Figure 1 This is a first structural schematic diagram of the mesial tilting molar straightening device of this utility model; Figure 2 This is a schematic diagram of the second structure of the mesial tilting molar straightening device of this utility model; Figure 3 This is a schematic diagram of the stop latch of the mesial tilting molar straightening device of this utility model.

[0018] In the attached diagram: 1. Archwire; 11. Second bend; 12. First bend; 2. Buccal tube; 3. Support; 4. Push spring; 5. Force application mechanism; 51. Stop buckle; 511. Gap; 6. Inclined molar. Detailed Implementation

[0019] The present invention will be further described below with reference to specific embodiments. The accompanying drawings are for illustrative purposes only, representing schematic diagrams rather than actual physical objects, and should not be construed as limiting the scope of this patent. To better illustrate the embodiments of the present invention, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0020] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," and "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0021] Example 1 like Figures 1 to 2The first embodiment of the mesial tilted molar straightening device of this utility model is shown, including an archwire 1, a push spring 4, a force-applying mechanism 5 that can adjust the compression of the push spring 4, a buccal tube 2 installed on the tilted molar 6, and an anchor 3 installed in the oral cavity. The two ends of the archwire 1 are respectively installed on the buccal tube 2 and the anchor 3. The push spring 4 is sleeved on the archwire 1 and abuts against the buccal tube 2. The force-applying mechanism 5 is installed on the archwire 1 or installed in the oral cavity.

[0022] This utility model's mesial tilted molar 6 straightening device involves installing a push spring 4 on the archwire 1 and a force-applying mechanism 5 on the archwire 1 or in the oral cavity before treatment. During orthodontic treatment, a buccal tube 2 is installed on the tilted molar 6, and an anchorage 3 is installed in the oral cavity. The two ends of the archwire 1 are respectively installed on the buccal tube 2 and the anchorage 3. By adjusting the relative positions of the buccal tube 2 and the anchorage 3, the degree of bending of the archwire 1 is adjusted, allowing the archwire 1 to apply sufficient vertical force to the tilted molar 6 through the buccal tube 2. The push spring 4 is then brought into contact with the buccal tube 2, and the compression of the push spring 4 is adjusted using the force-applying mechanism 5 until it can provide sufficient distal force to the tilted molar 6. Adjusting the push spring 4 is then stopped, completing the installation. This device can be prefabricated; after installation, only the compression of the push spring 4 needs to be adjusted via the force-applying mechanism 5 to apply force, eliminating the need for the dentist to bend the spring at the chairside. This simplifies operation and saves time for both the patient and the dentist. In this embodiment, the force-applying mechanism 5 is installed on the archwire 1.

[0023] like Figure 1 As shown, the archwire 1 passes through the cheek tube 2, and a first bend 12 is provided at one end of the archwire 1 that passes through the cheek tube 2. When installing the archwire 1, after passing one end of the archwire 1 through the cheek tube 2, the end of the archwire 1 is bent back to form the first bend 12. The first bend 12 serves to limit the archwire 1 and prevent the archwire 1 from falling off the cheek tube 2.

[0024] like Figure 1 and Figure 2 As shown, the other end of the archwire 1 is provided with a second bend 11, and the second bend 11 has a forward-facing opening. The head of the support 3 is engaged in the second bend 11. One end of the archwire 1 is bent beforehand to form the second bend 11 that can engage with the support 3. When installing the archwire 1, the support 3 is placed in the mouth, and the second bend 11 is engaged with the support 3 to prevent the archwire 1 from falling off the support 3. In this embodiment, the second bend 11 has an S-shaped structure.

[0025] The working principle of the mesial tilted molar straightening device in this embodiment is as follows: Before treatment, one end of the archwire 1 is bent to form a second bend 11 that can engage with the anchorage 3, and the push spring 4 and the force-applying mechanism 5 are installed on the archwire 1; during orthodontic treatment, the buccal tube 2 is bonded to the tilted molar 6, the anchorage 3 is inserted into the oral cavity, the other end of the archwire 1 is passed through the buccal tube 2 and bent back to form a first bend 12, and the second bend 11 is engaged with the anchorage 3. By adjusting the relative position of the buccal tube 2 and the anchorage 3, the degree of bending of the archwire 1 is adjusted so that the archwire 1 applies sufficient vertical force to the tilted molar 6 through the buccal tube 2; the compression of the push spring 4 is adjusted by the force-applying mechanism 5 until the push spring 4 can provide sufficient distal force to the tilted molar 6, thus completing the installation.

[0026] Example 2 This embodiment is the second embodiment of the mesial tilting molar straightening device of this utility model. This embodiment is similar to the first embodiment, except that, as Figure 1 and Figure 2 As shown, the force-applying mechanism 5 includes a stop buckle 51 that can move or be fixed on the archwire 1. The stop buckle 51 is sleeved on the archwire 1, and the end of the push spring 4 away from the buccal tube 2 abuts against the stop buckle 51. During orthodontic treatment, the push spring 4 and the stop buckle 51 are sleeved on the archwire 1, and the two ends of the archwire 1 are respectively installed on the buccal tube 2 and the anchorage 3, so that the stop buckle 51 is in the open state. The stop buckle 51 is moved towards the buccal tube 2, compressing the push spring 4, and the position of the stop buckle 51 is adjusted so that the distal force applied by the push spring 4 to the inclined molar 6 through the buccal tube 2 reaches the required level. The stop buckle 51 is then closed, and the installation is completed. When force needs to be applied during a follow-up visit, the stop buckle 51 is opened, the stop buckle 51 is moved, and the push spring 4 is compressed so that the distal force applied by the push spring 4 to the inclined molar 6 reaches the required level again. The operation is simple and quick.

[0027] There are two or more stop latches 51, all located in front of the stop latches 51. The direction away from the inclined molar 6 is defined as "front". During the first application of force, only the foremost stop latch 51 is closed, while the others remain open. The push spring 4 abuts against the last stop latch 51, and all stop latches 51 abut against each other. All stop latches 51, together with the buccal tube 2, compress the push spring 4. During the second application of force, the foremost stop latch 51 is not released. The stop latches 51 adjacent to the foremost stop latch 51 are adjusted until the last stop latch 51 compresses the push spring 4 sufficiently, closing the stop latches adjacent to the foremost stop latch 51. This process is repeated for the third or subsequent applications of force. Each time a different stop latch 51 is moved to compress the push spring 4, the stop latch 51 is closed, completing the application of force. This prevents damage to the stop latch 51 caused by repeatedly opening and closing it.

[0028] like Figure 3As shown, the stop buckle 51 is a circular tube structure. A slit 511 extending axially along the side wall of the stop buckle 51 is provided. The slit 511 penetrates both the radial and axial thicknesses of the side wall of the stop buckle 51. The diameter of the stop buckle 51 when open is greater than the diameter of the archwire 1, and the diameter of the stop buckle 51 when closed is equal to the diameter of the archwire 1. When closing the stop buckle 51, the sides of the stop buckle 51 located on both sides of the slit 511 are clamped, closing the slit 511 and clamping the archwire 1, thus fixing the stop buckle 51. When opening the stop buckle 51, the slit 511 and the side wall of the stop buckle 51 opposite to the slit 511 are clamped, causing the stop buckle 51 to deform, opening the slit 511, increasing the diameter of the stop buckle 51, and restoring it to a state where it can move along the archwire 1.

[0029] The working principle of the mesial tilt molar straightening device in this embodiment is as follows: Taking a device with three stop buckles 51 as an example, let the direction closer to the central incisor be the front, and the three stop buckles 51 be referred to as the first stop buckle, the second stop buckle, and the third stop buckle from front to back; When force is applied for the first time, all stop buckles 51 are in the open state. Move the first stop buckle located at the front, the first stop buckle pushes the second stop buckle to move, the second stop buckle pushes the third stop buckle to move, until the third stop buckle at the rear compresses the push spring 4 by a sufficient amount, clamping the gap 511 of the first stop buckle, so that the first stop buckle clamps the archwire 1 and is fixed on the archwire 1. The first stop buckle stops moving, and the other stop buckles 51 are still in the open state; When force is applied for the second time, do not open the first stop buckle, adjust the position of the second stop buckle adjacent to the first stop buckle, until the third stop buckle compresses the push spring 4 by a sufficient amount, clamping the second stop buckle; When force is applied for the third time, move the third stop buckle directly, until the third stop buckle compresses the push spring 4 by a sufficient amount, clamping the third stop buckle.

[0030] Example 3 This embodiment is the third embodiment of the mesial tilting molar straightening device of this utility model. This embodiment is similar to embodiment two, except that, as Figure 1 and Figure 2 As shown, the anchorage 3 is installed in front of the inclined molar 6. Placing the anchorage 3 in front of the inclined molar 6 is simple to operate, easy to clean, reduces the possibility of inflammation around the anchorage 3, and increases the ease of implantation and post-implantation stability.

[0031] The anchorage 3 is installed between the roots of the first and second premolars. Implanting the anchorage 3 between the roots of the first and second premolars is simple, easy to clean, and offers high stability after implantation.

[0032] In the initial stage of orthodontic treatment, archwire 1 is a round wire. In the initial stage of orthodontic treatment, using a thinner round wire is less likely to damage the oral cavity; it is more flexible, which is conducive to moving the tilted molar 6; at the same time, it is convenient to insert archwire 1 into the buccal tube.

[0033] In the later stages of orthodontic treatment, archwire 1 can also be a square wire. In the later stages of orthodontic treatment, using a thicker square wire provides higher rigidity, better control, and easier adjustment of the curvature of the tilted molar 6. This is beneficial for later root control procedures, resulting in straighter teeth and improved orthodontic outcomes.

[0034] In this embodiment, the archwire 1 is made of stainless steel wire, which has high structural strength and is not easy to rust. In the initial stage of orthodontic treatment, the diameter of the archwire 1 is 0.018 mm. In the later stage of orthodontic treatment, the length and width of the cross-section of the archwire 1 are 0.025 mm and 0.019 mm, respectively.

[0035] The working principle of the mesial tilted molar straightening device in this embodiment is as follows: The anchorage 3 is placed between the roots of the first and second premolars, which is simple to operate, easy to clean, reduces the possibility of inflammation around the anchorage 3, and increases the ease of implantation and post-implantation stability. In the initial stage of orthodontic treatment, a round wire with a diameter of 0.018 mm is used as the archwire 1 to make the straightening device. When using the straightening device, it is not easy to damage the oral cavity, and it is convenient to insert the archwire 1 into the buccal tube. In the later stage of orthodontic treatment, a square wire with a cross-sectional length and width of 0.025 mm and 0.019 mm respectively is used as the archwire 1 to make the straightening device. It has high rigidity, good control force, and is convenient to adjust the curvature of the tilted molar 6, which is beneficial to the later root control operation, so that the teeth are aligned and the orthodontic effect is improved.

[0036] In the specific implementation of the above embodiments, the technical features can be combined in any non-contradictory way. For the sake of brevity, not all possible combinations of the above technical features are described. However, as long as the combination of these technical features is not contradictory, it should be considered to be within the scope of this specification.

[0037] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A mesial tilting molar straightening device, characterized in that, The device includes an archwire (1), a push spring (4), a force-applying mechanism (5) that can adjust the compression of the push spring, a buccal tube (2) installed on the inclined molar (6), and an anchor installed in the oral cavity. The two ends of the archwire (1) are respectively installed on the buccal tube (2) and the anchor (3). The push spring (4) is sleeved on the archwire (1) and abuts against the buccal tube (2). The force-applying mechanism (5) is installed on the archwire (1) or installed in the oral cavity.

2. The mesial tilting molar straightening device according to claim 1, characterized in that, The force-applying mechanism (5) includes a stop buckle (51) that can move on or be fixed on the bowwire (1). The stop buckle (51) is sleeved on the bowwire (1), and the end of the push spring (4) away from the cheek tube (2) abuts against the stop buckle (51).

3. The mesial tilting molar straightening device according to claim 2, characterized in that, The stop buckle (51) is provided in two or more, and is located in front of the cheek tube (2).

4. The mesial tilting molar straightening device according to claim 2, characterized in that, The stop buckle (51) is a circular tube structure. A slit (511) extending axially along the side wall of the stop buckle (51) is provided. The slit (511) penetrates the radial thickness and axial thickness of the side wall of the stop buckle (51). The diameter of the stop buckle (51) when it is open is greater than the diameter of the bow wire (1), and the diameter of the stop buckle (51) when it is closed is equal to the diameter of the bow wire (1).

5. The mesial tilting molar straightening device according to claim 1, characterized in that, The bowwire (1) passes through the cheek tube (2), and the end of the bowwire (1) that passes through the cheek tube (2) is provided with a first bend (12).

6. The mesial tilting molar straightening device according to claim 5, characterized in that, The other end of the bowwire (1) is provided with a second bend (11), and the second bend (11) is provided with a forward opening. The head of the support (3) is engaged in the opening of the second bend (11).

7. The mesial tilting molar straightening device according to claim 1, characterized in that, The anchor (3) is installed in front of the inclined molar (6).

8. The mesial tilting molar straightening device according to claim 7, characterized in that, The anchorage (3) is installed between the roots of the first and second premolars.

9. The mesial tilting molar straightening device according to claim 1, characterized in that, The bowwire (1) is a round wire.

10. The mesial tilting molar straightening device according to claim 1, characterized in that, The bowwire (1) is a square wire.

Images