Device and accessory for tooth correction

Abstract

The utility model provides a device and an accessory for tooth correction, the accessory comprises a base, one side of the base is provided with a mounting groove and a mounting channel, the mounting channel is provided with an inlet, a path limited by the mounting channel has a plurality of direction changes, the mounting groove is arranged at the tail end of the mounting channel, and the mounting channel is arranged in the mounting groove. Therefore, an adaptive correction arch wire can enter the mounting channel, reaches the mounting groove along the mounting channel and is clamped in the mounting groove.

Description

Technical Field

[0001] The utility model relates to the field of medical instruments, in particular to a device and accessories for tooth correction. Background Art

[0002] In recent years, bracketless invisible braces have become increasingly popular due to their aesthetic and comfort advantages, and are used in cases ranging from mild crowding to tooth extraction cases.

[0003] Clinically, it is found that the design of the overall mesial movement of the mandibular molars often results in mesial tilting. In addition, the loss of the mandibular first molar and its failure to be repaired in time can also easily lead to the mesial tilting of the mandibular second molar. Insufficient length of the mandibular dental arch, oversized teeth, premature eruption of the mandibular third molars, and abnormal mesial eruption of the second molars can also lead to tilting of the second molars, resulting in occlusal disorder. It is worth noting that the use of invisible braces alone often has weak control over the verticality of the molars.

[0004] The devices or methods for vertical molars in existing invisible orthodontic technology mainly include: using mesial and distal vertical rectangular attachments, segmental arches or molar upright springs combined with bracket alignment, and implanting micro-implant anchorage pins in the distal part of the molars to pull the upright tilted molars, etc. However, the above devices or methods all have certain defects in clinical practice: using double attachments still easily leads to tooth derailment; using segmental arches or molar upright springs involves bonding multiple brackets and bending specific archwires, which increases chairside time and is not conducive to periodontal cleaning of patients; using micro-implant anchorage pins in the distal part of the molars requires high operation requirements, and the soft tissue is thick, so the implants are easy to fall off. Utility Model Content

[0005] The purpose of the present application is to provide a device that improves the efficiency of invisible correction of vertical molars, is easy for doctors to operate, provides comfort to patients, and is conducive to periodontal cleaning, as well as accessories used in the device.

[0006] In view of this, the utility model provides an accessory for tooth correction, the accessory includes a base, one side of the base is provided with a mounting groove and a mounting channel, the mounting channel has an entrance, the path defined by the entrance has multiple direction changes, the mounting groove is arranged at the end of the mounting channel, so that an adapted correction arch wire can enter the mounting channel and reach the mounting groove along the mounting channel, and be clamped in the mounting groove.

[0007] Further, the accessory includes a working portion, and the working portion and the base together define the mounting slot.

[0008] Further, the accessory includes the guide portion, and the guide portion, the working portion and the base jointly define the installation channel, or the guide portion and the working portion jointly define the installation channel.

[0009] Furthermore, the installation channel has three 90-degree direction changes on its path.

[0010] Furthermore, an entrance of the installation passage is adjacent to the base.

[0011] Furthermore, the end section of the working part points toward the base.

[0012] The utility model also provides a device for tooth correction, which comprises an invisible orthodontic appliance, a correction archwire and the above-mentioned accessories.

[0013] Furthermore, a first connecting portion is provided at one end of the correction arch wire, and a second connecting portion is provided on the invisible braces, and the correction arch wire is connected to the invisible braces via the first connecting portion and the second connecting portion.

[0014] Furthermore, a positioning structure is provided on the correction arch wire, so as to limit the relative position of the correction arch wire and the accessory when the correction arch wire is installed on the accessory.

[0015] Furthermore, a reference mark is provided on the correction arch wire, so that the relative position of the correction arch wire and the accessory when they are installed in cooperation is determined by the reference mark.

[0016] The accessory for tooth correction of the utility model has a simple structure, is easy to manufacture, has a low cost, and is convenient and safe to load and unload the correction arch wire.

[0017] The device for orthodontic treatment of the utility model is suitable for patients to wear and remove by themselves, and can be used to correct the mesial tilt of molars, or to assist in vertical correction when unnecessary mesial tilt of molars has occurred in the middle stage of correction, thereby avoiding multiple restarts; the correction archwire is removable, which is more conducive to oral hygiene and cleaning than the segmental arch combined with brackets, and reduces the chairside time for bonding and removing multiple brackets; the whole dentition is used as support, which effectively disperses the reaction force of the correction force, and avoids the single support tooth from being overstressed and tilted; the jaw pad effect of the invisible orthodontic appliance is used to reduce the occlusal interference and anterior tooth opening in the process of vertical correction of molars phenomenon.

[0018] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of an accessory for tooth correction according to an embodiment of the utility model;

[0020] Figure 2 yes Figure 1A schematic diagram of the structure of the accessories and the correction arch wire in the embodiment;

[0021] Figure 3 yes Figure 1 A side view of the attachment in;

[0022] Figure 4 It is a structural schematic diagram of a device for tooth correction according to an embodiment of the utility model; Figure 5 yes Figure 4 A schematic diagram of the structure of an optional correction archwire in a device for tooth correction;

[0023] Figure 6 yes Figure 4 A schematic diagram of the structure of another optional correction arch wire in a device for dental correction.

[0024] Description of reference numerals:

[0025] 10—Teeth grinding,

[0026] 100—Attachment,

[0027] 110 - base,

[0028] 111—plane,

[0029] 120—Work Department,

[0030] 121 - first extension section,

[0031] 122—Second extension,

[0032] 130 - guide part,

[0033] 131—Third extension,

[0034] 132—Fourth extension,

[0035] 133—Fifth extension,

[0036] 140—Mounting slot,

[0037] 150—Installation channel,

[0038] 151—Entrance,

[0039] 200—Corrective archwire,

[0040] 210—Mounting ring,

[0041] 220, 230—shallow groove,

[0042] 300—Invisible braces,

[0043] 310—Traction buckle. DETAILED DESCRIPTION

[0044] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. The drawings are schematic diagrams or conceptual diagrams, and the relationship between the thickness and width of each part, the proportional relationship between the parts, etc., are not completely consistent with their actual values.

[0045] Embodiment 1

[0046] Figure 1 A schematic structural diagram of an accessory for tooth correction according to an embodiment of the utility model is shown, wherein the accessory 100 includes a base 110 , a working portion 120 and a guiding portion 130 .

[0047] The base 110 is the part of the accessory 100 of this embodiment that fits with the teeth when in use. One side of the base 110 is used to bond to the teeth that need to be corrected, such as using a resin adhesive. The surface profile of the base 110 on this side can be flat, curved, or have a texture suitable for bonding to the teeth. The structure of this side in existing orthodontic accessories can be used, and there is no limitation here. A working part 120 and a guide part 130 are provided on the other side of the base 110.

[0048] refer to Figure 3 , the working portion 120 is disposed on one side of the base 110, and extends outward from one side of the base 110 and bends. In the present embodiment, the working portion 120 is an overall curved sheet-like structure, having two flat-plate-like extension portions, namely a first extension segment 121 and a second extension segment 122. The first extension segment 121 extends away from the base 110, and the second extension segment 122 is disposed at 90 degrees to the first extension segment 121. The base 110 has a plane 111 that matches the working portion 120, and the first extension segment 121 is perpendicular to the plane 111, so that the working portion 120 and the base 110 jointly define a square mounting groove 140, and the size of the mounting groove 140 (defined by the size of the working portion 120) is adapted to the size of the adapted correction arch wire 200, so that the correction arch wire 200 can be snapped into the mounting groove 140. As shown Figure 2As shown, in this embodiment, the correction arch wire 200 adopts a square wire. For example, for a square wire with a size of 0.018 inches×0.025 inches, the width of the mounting groove 140 needs to be equal to or slightly greater than 0.025 inches, so that the correction arch wire 200 can be embedded in the mounting groove 140 and remain in the mounting groove 140. The depth of the mounting groove 140 can be equal to 0.018 inches or slightly greater than 0.018 inches. It should be noted that the correction arch wire 200 usually has an arc that is adapted to the dental arch, which may cause the section that is clamped in the mounting groove 140 to be inconsistent with the extension direction of the mounting groove 140. For example, the mounting groove 140 can extend along a straight line, and the section of the correction arch wire 200 corresponding to the mounting groove 140 will extend along an arc, so that even if the width of the mounting groove 140 is greater than the size of the correction arch wire 200, the correction arch wire 200 can still be clamped in the mounting groove 140. As for the shape of the correction arch wire, the clinician can adjust it according to the correction needs to ensure that the correction arch wire 200 can be clamped in the installation groove 140, so as to provide appropriate correction force.

[0049] In other embodiments, the shapes of the working portion 120 and the base 110 jointly define a mounting groove 140 suitable for clamping the round wire. In this case, the inner wall of the mounting groove 140 is an arc shape, the radius of the arc is equal to or slightly larger than the radius of the round wire, and the groove width of the mounting groove 140 is slightly larger than the diameter of the round wire, so that the corrective arch wire 200 can be embedded in the mounting groove 140 and retained in the mounting groove 140.

[0050] In other embodiments, the working part 120 includes a mounting groove 140 , that is, the structure of the working part 120 itself defines the mounting groove 140 , such as the working part 120 is a U-shaped groove body or an arc-shaped groove body, and the U-shaped groove body or the arc-shaped groove body is connected to the base 110 .

[0051] refer to Figure 3The guide portion 130 and the working portion 120 are disposed on the same side of the base 110, and also extend and bend outward from one side of the base 110. In this embodiment, the guide portion 130 is a curved sheet-like structure as a whole, and has three flat extension portions, namely, a third extension portion 131, a fourth extension portion 132, and a fifth extension portion 133. The third extension section 131 extends away from the base 110, and is perpendicular to the plane 100 and the second extension section 122, and parallel to the first extension section 121; the fourth extension section 132 is arranged at 90 degrees to the third extension section 131, and is parallel to the plane 100 and the second extension section 122, and perpendicular to the first extension section 121; the fifth extension section 133 is arranged at 90 degrees to the fourth extension section 132, and is perpendicular to the plane 100 and the second extension section 122, and parallel to the first extension section 121, so that the guide portion 130, the working portion 120 and the base 110 jointly define a mounting channel 150, and three 90-degree direction changes are arranged on the path of the mounting channel 150. At the same time, there is a distance between the end of the fifth extension section 133 and the base 110, that is, the entrance 151 of the mounting channel 150 is defined. The mounting groove 140 is located at the end of the mounting channel 150, that is, the end of the mounting channel 150 is the mounting groove 140.

[0052] The size of the installation channel 150 is suitable for allowing the correction arch wire 200 to enter from the entrance 151, and reach the installation slot 140 along the installation channel 150, and finally be fixed in the installation slot 140. For example, for a square wire with a size of 0.018 inches × 0.025 inches, the width of the entrance 151 is greater than or slightly greater than 0.025 inches, the distance between the fifth extension section 133 and the first extension section 121 is slightly greater than 0.018 inches, the distance between the fourth extension section 132 and the second extension section 122 is slightly greater than 0.025 inches, and the distance between the third extension section 131 and the end of the second extension section 122 is slightly greater than 0.018 inches. Specifically, after the correction arch wire 200 enters the installation channel 150 from the entrance 151, it needs to undergo three 90-degree direction changes in the subsequent movement along the installation channel 150, and finally enters and is fixed in the installation slot 140.

[0053] It should be noted that, in the present embodiment, each extension section of the guide portion 130 is a flat plate-like structure, but for the installation channel 150 defined therein to be suitable for the movement of the correction arch wire 200 therein, it is only necessary that the inner side of the guide portion 130 (the side close to the working portion 120) is a plane, and the outer side of the guide portion 130 can have any surface contour, not limited to a plane, but can also be a curved surface, or other special-shaped surface structures, which will not affect the movement of the correction arch wire 200 in the installation channel 150.

[0054] In the accessory 100 of this embodiment, the base 110, the working part 120 and the guide part 130 are integrally formed and preferably made of metal material. The materials used to make existing accessories may also be used, and there is no limitation here.

[0055] The overall structural design of the accessory 100 of this embodiment takes into account both the ease of operation and safety when used by the patient, especially the role of the installation channel 150 is particularly significant. If the installation channel 150 is not provided and only the installation slot 140 open to the outside is provided, such a setting can also be used to fix the correction arch wire 200, but it is difficult to clip the correction arch wire 200 into the installation slot 140. On the one hand, the correction arch wire 200 needs to be aligned with the notch of the installation slot 140, and at the same time, a certain external force needs to be applied to clip the correction arch wire 200 into the installation slot 140. In view of the small notch of the installation slot 140 and the thinness of the correction arch wire 200, and the possible shaking during the hand operation, especially when applying force, will cause the correction arch wire 200 to deviate, which increases the difficulty of alignment and clipping during the patient's operation. If the correction arch wire 200 does not enter the installation slot 140 when applying force, it will quickly slide to the side, which is dangerous to injure the surrounding tissues. An installation channel 150 is provided in the accessory 100 of the present embodiment. Firstly, the entrance 151 of the installation channel 150 is larger than the slot size of the installation groove 140, and no special external force is required to place the correction arch wire 200 into the entrance 151. After alignment, it can naturally fall into the entrance 151. Secondly, the path of the installation channel 150 plays a guiding role, which can accurately guide the correction arch wire 200 to the slot of the installation groove 140, and further apply force to clamp it into the installation groove 140. Even if the correction arch wire 200 does not enter the installation groove 140, since the guide part 130 has multiple folded structures, the correction arch wire 200 sliding to the edge of the installation groove 140 will still be restricted in the installation channel 150, that is, it will not fall out of the accessory 100, thereby avoiding the damage that may be caused by the above-mentioned slippage.

[0056] When the correction arch wire 200 is to be removed from the accessory 100, a certain external force is required to disengage the correction arch wire 200 from the slot of the installation slot 140. When the correction arch wire 200 leaves the slot under the action of the external force, there is usually a certain momentum. As mentioned above, since the guide portion 130 has a plurality of folded structures, the correction arch wire 200 that has escaped from the installation slot 140 will still be restricted in the installation channel 150, that is, it will not directly escape from the accessory 100, and can then be conveniently moved along the path of the installation channel 150 until it is separated from the accessory 100.

[0057] In summary, whether the correction arch wire 200 is fixed to the accessory 100 or removed from the accessory 100, the correction arch wire 200 always moves in a small range, that is, the range limited by the installation channel 150, avoiding the possibility of damage to surrounding tissues caused by human factors.

[0058] On the other hand, the entrance 151 is arranged at a position close to the base 110, which makes the end section of the guide portion 130 point in the direction of the base 110, that is, the fifth extension section 133 points to the base 110 and is perpendicular to the plane 111. Compared with the entrance 151 being arranged at other positions and the fifth extension section 133 pointing to other directions, the above arrangement is obviously the safest choice, which makes the fifth extension section 133 avoid pointing to the cheek side to the greatest extent.

[0059] Embodiment 2

[0060] Figure 4 A schematic structural diagram of a device for tooth correction according to an embodiment of the utility model is shown, which includes an invisible brace 300 (whose outline is shown by a dotted line), a correction arch wire 200 and the accessory 100 in the first embodiment. In this embodiment, the vertical correction of molars 10 is taken as an example to illustrate the coordination and use of the various components in the device.

[0061] refer to Figure 4 , the invisible braces 300 are worn on the patient's dentition, Figure 4 , it is shown as being worn on the mandibular dentition, wherein the invisible orthodontic appliance 300 does not completely cover the molar 10 to be corrected (only covers the occlusal surface), but exposes a portion of the crown for the accessory 100 to be bonded to the molar 10. One end of the correction arch wire 200 is connected with the accessory 100. Specifically, as described in the first embodiment, the correction arch wire 200 is clamped and fixed in the installation groove of the accessory 100; the other end of the correction arch wire 200 is connected to the invisible braces 300. In this embodiment, a mounting ring 210 is provided at one end of the correction arch wire 200 connected to the invisible braces 300. Correspondingly, a raised traction buckle 310 for the mounting ring 210 to be inserted is provided on the invisible braces 300. The position is selected within the range corresponding to the lateral incisor and the canine on one side of the molar 10, so that one end of the correction arch wire 200 is connected to the invisible braces 300 by matching the mounting ring 210 and the traction buckle 310. Other existing connection methods can also be used for connection, which is not limited here.

[0062] For the vertical correction of the molar 10, the position of the traction buckle 310 and the accessory 100 (to limit the installation position and direction of the correction arch wire 200) and the shape of the correction arch wire 200 are used to provide a correction force for the molar 10 to drive it vertically in the distal direction. The installation position and direction of the correction arch wire 200 and its shape can be determined according to the conventional method of existing orthodontic correction. It is not a design point of the present application and will not be elaborated here.

[0063] The device for tooth correction in this embodiment is easy to wear and remove, and the patient can do it by himself, which specifically includes the following steps:

[0064] The patient first inserts the correction arch wire 200 into the installation channel 150 from the entrance 151 of the installation channel 150 of the accessory 100, and then moves along the path of the installation channel 150 until the correction arch wire 200 is engaged in the installation groove 140, and then wears the invisible braces 300 on the teeth, and finally puts the installation ring 210 at one end of the correction arch wire 200 into the traction buckle 310, thus completing the wearing of the device of this embodiment.

[0065] When the device of this embodiment needs to be disassembled, first remove the mounting ring 210 from the traction buckle 310, then move the correction arch wire 200 out of the mounting groove 140, and move it along the path of the mounting channel 150 until it is detached from the accessory 100 from the entrance 151, and finally remove the invisible braces 300 on the teeth.

[0066] The patient can wear or remove the device of this embodiment when needed, such as removing the device before meals, or wearing it only at night.

[0067] In other embodiments, the correction arch wire 200 further includes a positioning structure to limit the relative position of the correction arch wire 200 and the accessory 100 when the correction arch wire 200 is installed. Figure 5 As shown, a shallow groove 220 is provided on the correction arch wire 200, and the width of the shallow groove 220 is adapted to the length of the working portion 120. When the correction arch wire 200 is inserted into the mounting groove 140, the working portion 120 is located within the range of the shallow groove 220, or the working portion 120 is partially embedded in the shallow groove 220, thereby limiting the relative position of the correction arch wire 200 and the working portion 120.

[0068] In other embodiments, Figure 6 As shown, a shallow groove 230 is provided on the correction arch wire 200. The width of the shallow groove 230 is extremely small compared to the shallow groove 220. At this time, a protrusion matching the shallow groove 230 is provided on the inner side of the working part 120 of the accessory 100. When the correction arch wire 200 is inserted into the installation groove 140, the above-mentioned protrusion on the inner side of the working part 120 is embedded in the shallow groove 230, thereby limiting the relative position of the correction arch wire 200 and the working part 120. Preferably, two or more shallow grooves 230 can be provided.

[0069] In other embodiments, Figure 6 The position of the shallow groove 230 on the correction arch wire 200 is adjusted to align with the edge of the accessory 100, such as the edge of the working portion 120 or the edge of the base 110, so that it can be used as a reference mark to determine the relative position of the correction arch wire 200 and the accessory 100 when they are installed.

[0070] Compared with the prior art, the device of this embodiment has the following advantages in treating vertical molars:

[0071] 1. Compared with the method of using mesial and distal vertical rectangular attachments, which is prone to tooth derailment, the device of this embodiment uses a correction arch wire 200 to provide a stable correction force.

[0072] 2. Compared with the segmental arch combined with bracket alignment, this method will select a few adjacent teeth of the corrected teeth as support teeth, which may cause the adjacent support teeth to be subjected to excessive force and move or tilt, so it is necessary to increase the number of support teeth, and multiple brackets need to be bonded and processed, which increases the chairside time; while the device of this embodiment uses an invisible brace 300, and a traction buckle 310 is provided on the invisible brace 300 to fix one end of the correction arch wire 200 (one end of the mounting ring 210 is provided), so that the entire dentition is used as the support tooth, so that the force on a single support tooth is significantly reduced, the movement or tilting of the support tooth is avoided, and the chairside time is reduced. On the other hand, the device is easy to wear and remove, which is beneficial to the patient's periodontal cleaning, convenient for the patient to use at the appropriate time and conducive to cleaning the device.

[0073] 3. Compared with micro-implant support for upright tilted molars, which has high operation requirements and the implants are easy to fall off, the device of this embodiment has a stable overall structure, simple operation, and is easy to implement. Patients can wear and take off the device independently, which has both low cost and high efficiency.

[0074] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. An accessory for orthodontic treatment, characterized in that: It includes a base, one side of which is provided with a mounting groove and a mounting channel, the mounting channel has an entrance, and the path defined by the entrance has multiple direction changes, the mounting groove is arranged at the end of the mounting channel, so that the adapted correction arch wire can enter the mounting channel and reach the mounting groove along the mounting channel, and be clamped in the mounting groove.

2. The accessory for orthodontic treatment according to claim 1, characterized in that: The accessory includes a working portion, and the working portion and the base together define the mounting slot, or the working portion includes the mounting slot.

3. The accessory for orthodontic treatment according to claim 2, characterized in that: The accessory includes a guide portion, and the guide portion, the working portion, and the base together define the installation channel, or the guide portion and the working portion together define the installation channel.

4. The accessory for orthodontic treatment according to claim 3, characterized in that: There are three 90-degree direction changes on the path of the installation channel.

5. The accessory for orthodontic treatment according to claim 4, characterized in that: The entrance of the mounting channel is adjacent to the base.

6. The accessory for orthodontic treatment according to claim 5, characterized in that: The end section of the working part points toward the base.

7. A device for orthodontic treatment, characterized in that: It comprises an invisible brace appliance, a correction arch wire and the accessories as described in any one of claims 1 to 6.

8. The device for orthodontic treatment according to claim 7, characterized in that: A first connecting portion is provided at one end of the correction arch wire, and a second connecting portion is provided on the invisible braces. The correction arch wire is connected to the invisible braces via the first connecting portion and the second connecting portion.

9. The device for orthodontic treatment according to claim 7, characterized in that: The correction arch wire is provided with a positioning structure, which is suitable for limiting the relative position of the correction arch wire and the accessory when the correction arch wire is installed on the accessory.

10. The device for orthodontic treatment according to claim 7, characterized in that: The correction arch wire is provided with a reference mark, so that the relative position of the correction arch wire and the accessory when they are installed in cooperation is determined by the reference mark.

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