Device for correcting the inclination of adjacent teeth after loss of dentition

Abstract

The present application relates to the technical field of orthodontics, and provides a device and method for correcting the inclination of adjacent teeth after the loss of dentition. The device comprises a first connecting member, a driving assembly, a transmission assembly and a second connecting member. The first connecting member is fixedly connected to the first tooth. The driving assembly comprises a first connecting portion and an adjusting shaft. The adjusting shaft and the first connecting member are arranged at opposite ends of the first connecting portion. The adjusting shaft is provided with a first shaft section at one end close to the first connecting portion and a second shaft section at the other end. The second shaft section is provided with a threaded structure on at least part of its surface. The transmission assembly is provided with a threaded hole at one end. The threaded hole cooperates with the threaded structure. The other end of the transmission assembly is detachably connected to the second connecting member. The second connecting member is fixedly connected to the second tooth. The present application can improve the correction efficiency of the inclination of adjacent teeth and the device can be conveniently installed on the surface of the tooth.

Description

Technical Field

[0001] This invention relates to the field of orthodontic technology, and in particular to a device and method for correcting the tilting of adjacent teeth after tooth loss. Background Technology

[0002] Long-term tooth loss can lead to the displacement of adjacent teeth, causing problems such as malocclusion, food impaction, and insufficient mesiodistal distance, which poses certain challenges to dental implant restoration. For such patients, pre-implantation orthodontic treatment can improve the three-dimensional restoration space in the edentulous area and enhance the effectiveness of implantation.

[0003] In existing orthodontic techniques, when patients have missing teeth and adjacent teeth tilting, the method of bending a vertical spring, a spiral spring, or a T-shaped bend on a square archwire is generally used to straighten the adjacent teeth and concentrate the gaps for repair. These methods all require the use of brackets and archwires fixed on the buccal or lingual side of the teeth for correction.

[0004] Current orthodontic appliances can only correct shifted teeth by using brackets fixed to the buccal or lingual side, in conjunction with archwires or push springs. However, these appliances typically apply force to the entire row of teeth as multiple points of action, resulting in complex adjustment procedures, long treatment periods, and high costs. Therefore, there is an urgent need for a highly efficient and easy-to-use appliance for tilting adjacent teeth after tooth loss. Summary of the Invention

[0005] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, this invention provides a device and method for correcting adjacent tooth tilt after tooth loss. It has a simple structure and is easy to install, allowing patients to adjust it at home according to medical advice. This device is a local orthodontic appliance that can meet the high-efficiency orthodontic needs of patients with adjacent tooth tilt after tooth loss.

[0006] This invention provides an orthodontic device for correcting adjacent tooth tilt after tooth loss, wherein the adjacent teeth include adjacent first and second teeth, comprising:

[0007] A first connector is used for fixed connection with a first tooth;

[0008] A drive assembly includes a first connecting part and an adjusting shaft. The adjusting shaft and the first connecting member are respectively disposed at opposite ends of the first connecting part. The adjusting shaft has a first shaft segment at one end near the first connecting part and a second shaft segment at the other end. The first shaft segment and the second shaft segment are coaxially disposed. At least a portion of the surface of the second shaft segment is provided with a threaded structure. The first connecting part is rotatably connected to the first connecting member, and the first shaft segment and the first connecting part are fixedly connected.

[0009] A transmission component, one end of which is provided with a threaded hole that mates with a threaded structure, and the other end is detachably connected to a second connector. The second connector is used to fix the second tooth. The threaded structure rotates relative to the threaded hole and can move in the opposite direction a preset distance, which is used to drive the transmission component away from the drive component and move a preset distance.

[0010] The orthodontic appliance for tilting adjacent teeth after tooth loss according to the present invention further includes:

[0011] The adjustment assembly has a plurality of evenly distributed adjustment holes circumferentially arranged on the first shaft segment, the central axis of the plurality of adjustment holes is located on the same cross-section of the first shaft segment, and the plurality of adjustment holes are all through holes;

[0012] One end of the adjustment component engages with the adjustment hole and rotates around the first shaft segment by a preset angle, thereby driving the first shaft segment and the drive component to rotate by a preset angle, thereby driving the threaded structure to move relative to or in the opposite direction of the threaded hole by a preset distance.

[0013] According to the orthodontic device for correcting adjacent tooth tilt after tooth loss provided by the present invention, the first connecting part is stationary relative to the first shaft segment, and the driving component and the transmission component are coaxially arranged.

[0014] According to the orthodontic device for tilting adjacent teeth after tooth loss provided by the present invention, one end of the transmission component near the threaded structure is a nut structure and the other end is a baffle structure. The nut structure and the baffle structure are fixedly connected, and the baffle structure is arranged perpendicularly to the end face of the nut structure. The nut structure has the threaded hole inside.

[0015] According to the orthodontic device for correcting adjacent tooth tilt after tooth loss provided by the present invention, the baffle structure is hinged to the second connector to ensure that the transmission component and the second connector can rotate relative to each other in the planar direction of the baffle structure, and the second connector, the transmission component and the second tooth are relatively stationary in the circumferential direction of the transmission component to prevent the transmission component from rotating.

[0016] According to the orthodontic device for correcting adjacent tooth tilt after tooth loss provided by the present invention, the first connecting portion is partially embedded in a groove on one side of the first connecting member; both the first shaft segment and the second shaft segment are round shafts, and the diameter of the first shaft segment is larger than the diameter of the second shaft segment.

[0017] According to the orthodontic device for tilting adjacent teeth after missing teeth provided by the present invention, the adjusting component is clearance-fitted with the adjusting hole to facilitate the removal and placement of the adjusting component from the adjusting hole; the diameter of the end of the adjusting component that fits with the adjusting hole is larger than the diameter of the other end of the adjusting hole.

[0018] The present invention also provides a method for correcting the tilting of adjacent teeth after tooth loss, for correcting tilted adjacent teeth, wherein one of the tilted adjacent teeth is rotated, using the orthodontic device for correcting the tilting of adjacent teeth after tooth loss as described in any of the above claims, the method comprising:

[0019] Two orthodontic appliances for tilting adjacent teeth after two rows of missing teeth are fixedly connected to the buccal and lingual sides of the tilted adjacent teeth, respectively;

[0020] Rotate the adjustment shaft of one of the adjacent tooth tilt correction devices after tooth loss at a preset time interval and preset angle, so that the adjacent tooth tilt correction device after tooth loss pushes and straightens the tilted teeth.

[0021] The present invention also provides a method for correcting adjacent tooth tilting after tooth loss, used for correcting situations where the distance between the first tooth and the second tooth is less than the minimum length of the adjacent tooth tilting correction device, employing the adjacent tooth tilting correction device as described in any of the above claims, the method comprising:

[0022] Two orthodontic appliances for tilting adjacent teeth after two rows of missing teeth are fixedly connected to the buccal and lingual sides of the tilted adjacent teeth, respectively;

[0023] The adjusting shafts of the two adjacent teeth tilting correction devices are rotated synchronously at a preset time interval and preset angle, so that the two adjacent teeth tilting correction devices push the two sides of the tilted adjacent teeth synchronously, thereby widening the interdental distance between the tilted adjacent teeth.

[0024] The present invention also provides a method for correcting adjacent tooth tilting after tooth loss, used for correcting situations where the distance between the first tooth and the second tooth is greater than the minimum length of the adjacent tooth tilting correction device, employing the adjacent tooth tilting correction device as described in any of the above claims, the method comprising:

[0025] A device for correcting the tilt of adjacent teeth after a single row of teeth is missing is fixedly connected to the middle of the tilted adjacent teeth;

[0026] The adjustment shaft of the orthodontic device for tilting adjacent teeth after tooth loss is rotated at preset time intervals and preset angles to widen the interdental distance between the tilted adjacent teeth.

[0027] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0028] This invention discloses an orthodontic device for tilting adjacent teeth after tooth loss. By adopting the above-mentioned technical solution, the device and method for tilting adjacent teeth after tooth loss can apply a pushing force to tilted adjacent teeth, thereby increasing the interdental space to the required space for restoration. The device can also correct tilted adjacent teeth that have twisted after tooth loss. By rotating the adjustment shaft at a certain angle, the transmission component of the device can be displaced a certain distance, thereby pushing the tilted teeth a certain distance. This displacement control adjustment method is simpler to operate than the existing orthodontic appliances. Moreover, this orthodontic device for tilting adjacent teeth after tooth loss is convenient to use, and patients can adjust it themselves at home according to the doctor's instructions.

[0029] In addition, the orthodontic device for tilting adjacent teeth after tooth loss provided by this invention is only placed between the tilted adjacent teeth, has a simple structure, clear force distribution, and is easy to install. Furthermore, the push-pull action generated by twisting makes operation even more convenient. Moreover, since the orthodontic device for tilting adjacent teeth after tooth loss provided by this invention is only placed at the site of tooth loss, it is relatively discreet when worn, has minimal impact on aesthetics, and thus has a higher acceptance rate among patients. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in this invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0031] Figure 1 This is a cross-sectional schematic diagram of the orthodontic device for tilting adjacent teeth after tooth loss in an embodiment of the present invention;

[0032] Figure 2 This is a schematic diagram of the adjustment component in the orthodontic device for tilting adjacent teeth after tooth loss according to an embodiment of the present invention;

[0033] Figure 3 yes Figure 1 A cross-sectional view along the AA direction;

[0034] Figure 4 yes Figure 1 A cross-sectional view along the BB direction;

[0035] Figure 5 yes Figure 1 A cross-sectional view along the CC direction;

[0036] Figure 6 yes Figure 1 A cross-sectional view along the DD direction;

[0037] Figure 7 This is a schematic elevation view of the installation of an adjacent tooth tilting orthodontic device provided in some embodiments of the present invention under the condition of tooth loss, with the device positioned between the first tooth and the second tooth.

[0038] Figure 8 This is a schematic diagram of the installation plane of an adjacent tooth tilting orthodontic device provided in some embodiments of the present invention, under the condition of tooth loss, with the lingual and buccal sides of the first and second teeth respectively.

[0039] Figure 9 This is a schematic diagram of the installation plane of an adjacent tooth tilting correction device provided in some embodiments of the present invention, under the condition of tooth loss and adjacent tooth rotation, wherein adjacent tooth tilting correction devices are respectively set on the lingual and buccal sides of the first and second teeth.

[0040] Figure label:

[0041] 1. First connecting piece; 2. First connecting part; 3. Adjusting hole; 4. Second shaft section; 5. Nut structure; 6. Baffle structure; 7. Second connecting piece; 8. First shaft section; 9. Adjusting assembly. Detailed Implementation

[0042] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0043] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention 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, they should not be construed as limitations on the embodiments of the present invention. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0044] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0045] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0046] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0047] The following is combined Figures 1 to 9 This invention provides a device for correcting the tilting of adjacent teeth after tooth loss, wherein the adjacent teeth include adjacent first teeth and second teeth. The device for correcting the tilting of adjacent teeth after tooth loss mainly includes a first connector 1, a drive assembly, a transmission assembly, and a second connector 7.

[0048] Specifically, such as Figure 1As shown, the first connector 1 is used to fix one end of the adjacent tooth tilting orthodontic device to the first tooth among two adjacent teeth, that is, the first connector 1 is fixedly connected to the first tooth. The first connector 1 can be a ball joint support. The first connector 1 is cubic in shape. The hemispherical groove on the first connector 1 is provided in the plane on one side of the first connector 1 to accommodate the corresponding hinge component. The four sides or one end face of the first connector 1 can be bonded and fixedly connected to the surface of the first tooth by adhesive. The other end face of the first connector 1 is connected to the drive component through a ball joint structure.

[0049] The drive assembly includes a first connecting part 2 and an adjusting shaft. The adjusting shaft and the first connecting member 1 are respectively disposed at opposite ends of the first connecting part 2. The first connecting part 2 is disposed at the end of the drive assembly near the first connecting member 1. The first connecting part 2 is a hinge component corresponding to the hemispherical groove on the upper part of the first connecting member 1. Preferably, the first connecting part 2 is a spherical structure. Figure 3 As shown, the first connecting part 2 is partially embedded in a hemispherical groove on one side of the first connector 1. The first connecting part 2 is rotatably connected to the first connector 1. The first connector 1 and the first connecting part 2 of the drive assembly are connected by a spherical hinge structure. The spherical structure of the first connecting part 2 can rotate relative to the hemispherical groove on the first connector 1 in multiple directions and at multiple angles. This is used to expand the position distribution range of the first connector 1 fixed on the surface of the first tooth and prevent the drive assembly from bending internally due to the rigid force from the first connector 1.

[0050] The adjusting shaft is located at the end of the drive assembly away from the first connector 1. The adjusting shaft is a stepped shaft. The end of the adjusting shaft near the first connector 2 is provided with a first shaft segment 8, and the other end is provided with a second shaft segment 4. The first shaft segment 8 and the second shaft segment 4 are coaxially arranged. The cross-section of the first shaft segment 8 is circular and the surface of the first shaft segment 8 is smooth. When the adjacent tooth tilting orthodontic appliance is installed behind the patient's teeth, it can be used to prevent food or the inside of the oral cavity from contacting the orthodontic appliance and causing the first shaft segment 8 to rotate. The cross-section of the second shaft segment 4 is also circular. At least a portion of the surface of the second shaft segment 4 is provided with a thread structure of a certain length. Preferably, the circumferential thread structure of the second shaft segment 4 is a transmission thread.

[0051] The portion of the first connecting part 2 protruding from the hemispherical groove of the first connecting member 1 is fixedly connected to one end of the first shaft segment 8. The end of the first shaft segment 8 away from the first connecting member 1 is connected to the second shaft segment 4. The central axis of the first shaft segment 8 and the central axis of the second shaft segment 4 coincide. The first connecting part 2 is fixedly connected to the center position of one end face of the first shaft segment 8. When the first connecting part 2 rotates relative to the first connecting member 1, the first connecting part 2, the first shaft segment 8, and the second shaft segment 4 are integrally formed and rotate synchronously at the same speed.

[0052] The transmission assembly and the second shaft section 4 of the adjusting shaft are threadedly connected. One end of the transmission assembly has a threaded hole, and the other end is detachably connected to the second connecting piece 7. The end of the transmission assembly near the adjusting shaft is a nut structure 5. The nut structure 5 at the end of the transmission assembly near the adjusting shaft has a threaded hole of a certain length along the central axis of the second shaft section 4. The length of the threaded hole matches the length of the circumferentially arranged threaded structure of the second shaft section 4. Figure 5 As shown, the threaded structure on the circumferential surface of the second shaft segment 4 engages with the threaded hole inside the transmission assembly. The drive assembly and the transmission assembly are coaxially arranged. When the second shaft segment 4 rotates around its central axis, the threaded structure and the threaded hole rotate relative to each other. When the rotation direction of the second shaft segment 4 is either clockwise or counterclockwise, the threaded hole is pushed by the threaded structure and moves along the axial direction of the second shaft segment 4. The threaded structure and the threaded hole can move in opposite directions relative to each other. The direction of relative movement between the transmission assembly and the second shaft segment 4 depends on the rotation direction of the second shaft segment 4 and the helix direction of the threaded structure.

[0053] While the drive assembly rotates at a preset angle, the transmission assembly moves a preset distance along the axial direction of the adjusting shaft. The distance the threaded hole moves depends on the rotation angle of the second shaft segment 4. The more rotations the second shaft segment 4 makes, the longer the threaded hole moves. The entire transmission assembly moves along the axial direction of the second shaft segment 4. That is, when the drive assembly rotates, the transmission assembly moves along the axial direction of the second shaft segment 4. The drive assembly is used to drive the transmission assembly to move along the axial direction of the adjusting shaft. When the second shaft segment 4 and the transmission assembly move in opposite directions, the transmission assembly is driven to move away from the drive assembly. The distance the transmission assembly moves depends on the rotation angle of the adjusting shaft.

[0054] The second connector 7 is detachably connected to the end of the transmission assembly away from the adjusting shaft. The second connector 7 is configured as a movable hinge support. Preferably, the second connector 7 is configured as a triangular hinge support. The second connector 7 is cubic in shape. The second connector 7 is fixedly connected to the surface of the second tooth. That is, the four sides or one end face of the second connector 7 can be bonded and fixedly connected to the surface of the second tooth by an adhesive. The other end face of the second connector 7 is connected to the transmission assembly through a triangular hinge structure. After the second connector 7 is fixed to the surface of the second tooth, the second connector 7, the transmission assembly and the second tooth are relatively stationary. The transmission assembly is relatively stationary relative to the second connector 7, and no relative rotation occurs between the two.

[0055] In a further embodiment, such as Figure 4As shown, the first shaft segment 8 can be provided with multiple evenly distributed adjustment holes 3 in the circumferential direction. The central axis of the multiple adjustment holes 3 is located on the same cross-section of the first shaft segment 8. All adjustment holes 3 are through holes. In this embodiment, for ease of manufacturing, two adjustment holes 3 are provided in the circumferential direction of the first shaft segment 8 as an example. The two adjustment holes 3 are both through holes and are perpendicular to each other. The central axis of the two adjustment holes 3 is located on the same plane, and this plane is set perpendicular to the central axis of the first shaft segment 8. That is, the central axis of the two adjustment holes 3 is perpendicular to the central axis of the second shaft segment 4, and the middle part of the two adjustment holes 3 overlaps. Setting two adjustment holes 3 allows the first shaft segment 8 to be provided with four holes evenly spaced at an angle in the circumferential direction. The four holes are evenly spaced at 90° intervals in the circumferential direction. Since the adjustment component 9 can only be inserted from outside the mouth to inside the mouth, the operating angle for the operator to rotate the first shaft segment 8 is less than 180°. The evenly spaced four holes facilitate the insertion of the adjustment component 9 into the adjustment hole 3 and also facilitate the adjustment of the drive component to rotate to the preset angle.

[0056] In a further embodiment, such as Figure 2 As shown, the orthodontic device for tilting adjacent teeth after tooth loss may also include an adjustment component 9. One end of the adjustment component 9 is engaged with the adjustment hole 3 and rotates around the first shaft segment 8 by a preset angle. The adjustment component 9, in conjunction with the adjustment hole 3, is used to drive the first shaft segment 8 and the adjustment shaft to rotate, thereby driving the threaded structure to move relative to or in the opposite direction to the threaded hole.

[0057] In a further embodiment, the diameter of one end of the adjusting component 9 that mates with the adjusting hole 3 is smaller than the diameter of the other end of the adjusting component 9, in order to prevent the adjusting component 9 from falling out when it is inserted into the adjusting hole 3; the end of the adjusting component 9 that is inserted into the adjusting hole 3 is in clearance fit with the adjusting hole 3, which facilitates the removal and placement of the adjusting component 9 from the adjusting hole 3.

[0058] With this configuration, by applying force to one end of the adjusting component 9, the first shaft segment 8 can rotate. When the first shaft segment 8 rotates, the first connecting part 2, the first shaft segment 8, and the second shaft segment 4 are integrally configured and rotate synchronously at the same speed, allowing the drive component to rotate. The first connecting part 2 rotates relative to the first connecting member 1. By adjusting the adjusting component 9 and inserting it into different adjusting holes 3, the first shaft segment 8 can be rotated at different preset angles, thereby controlling the angle of rotation of the drive component. The drive component can perform multiple circumferential rotations to meet the needs of the adjacent tooth tilting orthodontic device after tooth loss, which requires different preset pushing distances to push the teeth.

[0059] In possible embodiments, the adjustment component 9 can be a part with a certain length, such as an adjustment block or an adjustment rod. The length of the adjustment component 9 is longer than the length of any one of the adjustment holes 3. The specific cross-sectional shape of the adjustment component 9 is not specifically limited here.

[0060] In this embodiment, the first shaft segment 8 is a round shaft to prevent the first shaft segment 8 from rotating when the patient chews food and the food touches it. The first shaft segment 8 is set as a round shaft to avoid affecting the pushing distance of the orthodontic device to tilt the adjacent teeth, thereby ensuring the orthodontic efficiency. Since the second shaft segment 4 is provided with a threaded structure in the circumference, the second shaft segment 4 is also set as a round shaft.

[0061] In this embodiment, the first connecting part 2 is fixedly connected to the first shaft segment 8. The fixed connection method includes, but is not limited to, welding and other fixed connection methods. The first connecting part 2 and the adjusting shaft are stationary to each other, and the first connecting part 2 and the adjusting shaft can rotate synchronously at the same speed.

[0062] In this embodiment, the end of the transmission component away from the threaded structure is a baffle structure 6. The end face opposite to the end with the threaded hole of the nut structure 5 is a plane. The nut structure 5 has a threaded hole inside. A baffle structure 6 is provided at the center of the plane. The baffle structure 6 is perpendicular to the plane, i.e., the end face of the nut structure 5, and is fixedly connected to the plane. The nut structure 5 and the baffle structure are fixedly connected. The baffle structure 6 and the nut structure 5 can be integrated. The centroid of the baffle structure 6 is located on the extension line of the central axis of the threaded hole. The centroid of the first connecting piece 1, the center line of the adjusting shaft, the center line of the threaded hole, and the centroid of the baffle structure 6 overlap with each other.

[0063] Furthermore, such as Figure 6 As shown, the baffle structure 6 is hinged to the second connecting member 7. The baffle structure 6 is hinged to the side of the second connecting member 7 with the hinge structure. In the thickness direction of the baffle structure 6, the baffle structure 6 cannot move relative to the second connecting member 7. That is, the baffle structure 6 and the second connecting member 7 are relatively stationary in the circumferential direction of the adjusting shaft. The baffle structure 6 and the nut structure 5 are fixedly connected and integrated. That is, the nut structure 5 and the baffle structure 6 are relatively stationary.

[0064] In possible embodiments, the baffle structure 6 can be a triangular baffle or a rhomboid baffle, etc., and the specific shape of the baffle structure 6 is not limited.

[0065] With this configuration, since the baffle structure 6 and the second connecting piece 7 are relatively stationary in the circumferential direction of the adjusting shaft, the baffle structure 6, the nut structure 5, and the second connecting piece 7 are also relatively stationary in the circumferential direction of the adjusting shaft. When the second connecting piece 7 is fixedly connected to the second tooth, the transmission component, the second connecting piece 7, and the second tooth are all relatively stationary in the circumferential direction of the adjusting shaft. This ensures that the nut structure 5 is tightened and cannot rotate in the circumferential direction of the adjusting shaft. Therefore, when tightening or loosening the screw, it can prevent the nut structure 5 and the adjusting shaft from rotating relative to each other around the central axis of the adjusting shaft, that is, prevent the transmission component from rotating on its own. This improves the correlation between the rotation angle of the drive component and the movement distance of the transmission component, and also improves the accuracy of the pushing distance of the adjacent tooth tilting orthodontic device after tooth loss.

[0066] Furthermore, such as Figure 6 As shown, there is a certain gap between the baffle structure 6 and the second connecting member 7 in the plane direction of the baffle structure 6. The hinged connection between the baffle structure and the second connecting member 7 ensures that the transmission assembly and the second connecting member 7 can rotate relative to each other in the plane direction of the baffle structure. Moreover, since both the drive assembly and the transmission assembly are set with the central axis of the adjusting shaft as the center, the drive assembly and the transmission assembly are set on a straight line, that is, they are set in a straight line.

[0067] With this configuration, when the tilt angle changes during the adjacent tooth tilt correction process, i.e. when the spatial positions of the first connector 1 and the second connector 7 change, the first connector 1 can rotate relative to the drive assembly in multiple directions and at multiple angles, and the transmission assembly and the second connector 7 can rotate relative to each other on the plane of the baffle structure 6. Therefore, the drive assembly and the transmission assembly are arranged in a straight line, the first connector 1 is rotatably connected to the drive assembly, and the second connector 7 is hinged to the transmission assembly. This can ensure that the adjacent tilted teeth are subjected to linear force, and prevent the adjacent teeth from developing a specific directional tilt defect during the long-term adjacent tooth tilt correction process.

[0068] In this embodiment, when the transmission assembly moves along the axial direction of the second shaft segment 4, the baffle structure 6 applies a pushing force to the second connecting member 7. Since the second connecting member 7 is fixedly connected to the second tooth, the second tooth will be gradually corrected in position by the pushing force transmitted by the baffle structure 6. Correspondingly, since the forces are mutual, the first connecting part 2 will also give the first connecting member 1 and the first tooth a pushing force. The working method and principle are similar, and will not be described in detail here.

[0069] In this embodiment, the diameter of the first shaft segment 8 is larger than the diameter of the second shaft segment 4. An adjustment hole 3 is provided in the first shaft segment 8, and the adjustment component 9 is inserted into the adjustment hole 3. When the adjustment hole 3 is long, only a small force needs to be applied to the adjustment component 9 to rotate the first shaft segment 8, which facilitates the rotation of the drive component and improves the accuracy of the angular rotation of the drive component.

[0070] Please refer to Figure 7-9 The embodiments of the present invention also provide three methods for correcting adjacent tooth tilt after tooth loss, applied to the orthodontic device for correcting adjacent tooth tilt after tooth loss as described in any of the above embodiments. In this embodiment, the three methods are specifically as follows:

[0071] The first type of orthodontic method for correcting adjacent tooth tilt after tooth loss is used when the distance between the first and second teeth is greater than the minimum length of the adjacent tooth tilt correction appliance. Figure 7 As shown, an orthodontic appliance for tilting adjacent teeth after a single dentition is missing is fixedly connected to the middle of the tilted adjacent teeth. It should be noted that, as those skilled in the art will know, under the condition of dentition loss, the distance between the first and second teeth refers to the "mesiodistal gap of the missing tooth", or the "distance between adjacent teeth" or the "mesiodistal gap of adjacent teeth".

[0072] Specifically, in the orthodontic appliance for tilting adjacent teeth after tooth loss, the first connector 1 is fixed on the side of the first tooth near the second tooth, and the second connector 7 is fixed on the side of the second tooth near the first tooth.

[0073] Then, the adjustment shaft of the adjacent tooth tilting orthodontic device is rotated according to a preset time interval and a preset angle to expand the interdental distance between the tilted adjacent teeth and to expand the interdental distance between the tilted adjacent teeth to the size of space required for tooth restoration, so as to facilitate subsequent tooth restoration operations; specifically, the adjustment shaft of the adjacent tooth tilting orthodontic device is rotated by a preset angle in each preset time interval, and the transmission component in the adjusted adjacent tooth tilting orthodontic device moves a preset distance accordingly.

[0074] Furthermore, the preset time interval can be monthly, weekly, etc., without specific limitations here; when the preset time interval is monthly, the preset distance can be 1mm. By inserting the adjustment component 9 into the adjustment hole 3 of the orthodontic device and rotating the adjustment shaft, the distance between the first tooth and the second tooth can be increased at a pushing speed of 1mm per month.

[0075] With this configuration, in the embodiments of the present invention, the orthodontic device and method for tilting adjacent teeth after tooth loss has the function of applying a pushing force to tilted adjacent teeth, which can increase the interdental space to the space required for restoration. The orthodontic device for tilting adjacent teeth after tooth loss can also correct tilted adjacent teeth that have been twisted after tooth loss. The orthodontic device for tilting adjacent teeth after tooth loss can rotate an adjustment shaft at a certain angle, and the threaded structure on the adjustment shaft and the threaded hole in the nut structure 5 cooperate with each other. The transmission component can be displaced a certain distance, thereby pushing the tilted teeth a certain distance. This displacement control adjustment method is simpler to operate than the orthodontic appliances in the prior art. Moreover, the orthodontic appliance for tilting adjacent teeth after tooth loss is convenient to use, and patients can adjust it at home according to the doctor's instructions.

[0076] Moreover, the nut structure 5 can be fixed in the circumferential direction of the adjustment shaft to prevent relative rotation between the nut structure 5 and the adjustment shaft, which improves the accuracy of the distance of the adjacent tooth tilting device to push the tilted teeth after tooth loss. During the adjacent tooth tilting correction process, even if the tooth tilting angle changes, it can still ensure that the adjacent teeth are subjected to linear force at the point of action.

[0077] The second type of orthodontic method for correcting adjacent tooth tilt after tooth loss is used when the distance between the first and second teeth is less than the minimum length of the adjacent tooth tilt correction appliance. Figure 8 As shown, the two adjacent teeth tilting orthodontic appliances after tooth loss are fixedly connected to the buccal and lingual sides of the tilted adjacent teeth, respectively. The specific installation method of the two adjacent teeth tilting orthodontic appliances after tooth loss is the same as that of the first orthodontic method, and will not be described in detail here.

[0078] Then, the adjustment shafts of the two adjacent teeth tilting orthodontic devices are rotated synchronously according to the preset time interval and preset angle, so that the two adjacent teeth tilting orthodontic devices push the two sides of the tilted adjacent teeth synchronously, thereby widening the interdental distance between the tilted adjacent teeth; specifically, the adjustment shafts of the adjacent teeth tilting orthodontic devices are rotated by a preset angle in each preset time interval, and the transmission components in the adjusted adjacent teeth tilting orthodontic devices move a preset distance accordingly.

[0079] Furthermore, the preset time interval can be monthly, weekly, etc., without specific limitations here; when the preset time interval is monthly, the preset distance can be 1mm. By inserting the adjustment component 9 into the adjustment holes 3 of the two orthodontic devices and rotating the adjustment shaft, the two ends of the first tooth and the two ends of the second tooth can be pushed synchronously at a pushing speed of 1mm per month.

[0080] Furthermore, after the distance between the first and second teeth is greater than or equal to the minimum length of the adjacent tooth tilting orthodontic appliance, the adjacent tooth tilting orthodontic appliances on the buccal and lingual sides of the tilted adjacent teeth can be removed, and an adjacent tooth tilting orthodontic appliance can be set between the tilted adjacent teeth. That is, the above-mentioned first method of adjacent tooth tilting orthodontic treatment after tooth loss can continue to correct the tilted adjacent teeth.

[0081] The third type of orthodontic method for correcting tilted adjacent teeth after tooth loss is used when adjacent teeth are tilted, and one of the adjacent teeth is rotated. Figure 9 As shown, when one of the tilted teeth in a missing tooth arch is rotated, two orthodontic appliances for tilting adjacent teeth in a missing tooth arch are fixedly connected to the buccal and lingual sides of the tilted adjacent teeth, respectively.

[0082] Specifically, the first connector 1 of the two adjacent teeth tilting orthodontic appliances after tooth loss can be fixedly connected to the buccal and lingual sides of the first teeth, respectively, and the second connector 7 of the two adjacent teeth tilting orthodontic appliances after tooth loss can be fixedly connected to the buccal and lingual sides of the second teeth, respectively.

[0083] Then, the adjustment shaft of the adjacent tooth tilting orthodontic device is rotated according to a preset time interval and a preset angle, so that the adjacent tooth tilting orthodontic device pushes and straightens the tilted and twisted teeth; specifically, the adjustment shaft of the adjacent tooth tilting orthodontic device is rotated by a preset angle in each preset time interval, and the transmission component in the adjusted adjacent tooth tilting orthodontic device moves a preset distance accordingly.

[0084] Furthermore, the preset time interval can be monthly, weekly, etc., without specific limitations here; when the preset time interval is monthly, the preset distance can be 1mm. By inserting the adjustment component 9 into the adjustment hole 3 of the orthodontic device on one side and rotating the adjustment shaft, the teeth with rotation can be pushed at a pushing speed of 1mm per month to correct the tooth rotation.

[0085] Furthermore, after the rotation angle of the rotated tooth returns to zero, based on the distance between the tilted adjacent teeth, the first or second method of adjacent tooth tilt correction after tooth loss is selected to continue to correct the tilted adjacent teeth.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A device for correcting adjacent tooth tilting after tooth loss, characterized in that, For the correction of adjacent tooth tilt, wherein the adjacent teeth include adjacent first and second teeth, including: The first connector (1) is used to fix the first tooth. The first connector is a ball joint support. The first connector is cubic in shape. The hemispherical groove on the first connector is provided in the plane on one side of the first connector to accommodate the corresponding hinge component. The drive assembly includes a first connecting part (2) and an adjusting shaft. The adjusting shaft and the first connecting member (1) are respectively disposed at opposite ends of the first connecting part (2). The drive assembly has a first connecting part at one end near the first connecting member. The first connecting part is a hinge component corresponding to the hemispherical groove on the first connecting member. The first connecting part has a spherical structure and is partially embedded in the hemispherical groove on one side of the first connecting member. The first connecting part is rotatably connected to the first connecting member. The first connecting member and the first connecting part of the drive assembly are connected by a spherical hinge structure. The spherical structure of the first connecting part is located in the hemispherical groove on the first connecting member in multiple directions and at multiple angles. The adjustment shaft rotates relative to the upper hemispherical groove of the first connector to expand the distribution range of the fixed position of the first connector on the surface of the first tooth, and prevents the drive assembly from bending internally due to the rigid force from the first connector; the adjustment shaft is provided with a first shaft section (8) at one end near the first connecting part (2) and a second shaft section (4) at the other end. The first shaft section (8) and the second shaft section (4) are coaxially arranged. At least a portion of the surface of the second shaft section (4) is provided with a threaded structure. The first connecting part (2) is rotatably connected to the first connector (1). The first shaft section (8) and the first connecting part (2) are fixedly connected. The transmission component has a threaded hole at one end, which engages with the threaded structure, and the other end is detachably connected to a second connector (7). The second connector (7) is used to fix the connection with the second tooth. The threaded structure rotates relative to the threaded hole and can move in the opposite direction by a preset distance, which is used to drive the transmission component away from the driving component and move by a preset distance.

2. The orthodontic device for correcting adjacent tooth tilt after tooth loss according to claim 1, characterized in that, Also includes: The adjustment component (9) has a plurality of evenly distributed adjustment holes (3) circumferentially arranged on the first shaft segment (8). The central axis of the plurality of adjustment holes (3) is located on the same cross section of the first shaft segment (8), and the plurality of adjustment holes (3) are all through holes. One end of the adjustment component (9) engages with the adjustment hole (3) and rotates around the first shaft segment (8) by a preset angle, thereby driving the first shaft segment (8) and the drive component to rotate by a preset angle, thereby driving the threaded structure to move relative to or in the opposite direction of the threaded hole by a preset distance.

3. The orthodontic device for correcting adjacent tooth tilt after tooth loss according to claim 2, characterized in that, The first connecting part (2) is stationary relative to the first shaft segment (8), and the driving component and the transmission component are coaxially arranged.

4. The orthodontic device for correcting adjacent tooth tilt after tooth loss according to claim 3, characterized in that, The transmission component has a nut structure (5) at one end near the threaded structure and a baffle structure (6) at the other end. The nut structure (5) and the baffle structure (6) are fixedly connected, and the baffle structure (6) is perpendicular to the end face of the nut structure (5). The nut structure (5) has the threaded hole inside.

5. The orthodontic device for correcting adjacent tooth tilt after tooth loss according to claim 4, characterized in that, The baffle structure (6) is hinged to the second connector (7) to ensure that the transmission assembly and the second connector (7) can rotate relative to each other in the plane direction of the baffle structure (6), and that the second connector (7), the transmission assembly and the second tooth are relatively stationary in the circumferential direction of the transmission assembly to prevent the transmission assembly from rotating.

6. The orthodontic device for correcting adjacent tooth tilt after tooth loss according to claim 5, characterized in that, The first connecting part (2) is partially embedded in a groove on one side of the first connecting member (1); the first shaft segment (8) and the second shaft segment (4) are both round shafts, and the diameter of the first shaft segment (8) is larger than the diameter of the second shaft segment (4).

7. The orthodontic device for correcting adjacent tooth tilt after tooth loss according to claim 2, characterized in that, The adjustment component (9) is fitted with the adjustment hole (3) with a clearance, which facilitates the removal and placement of the adjustment component (9) through the adjustment hole (3); the diameter of the end of the adjustment component (9) that fits with the adjustment hole (3) is smaller than the diameter of the other end of the adjustment component (9).

Images