Accessory, shell-shaped orthodontic appliance and shell-shaped orthodontic appliance system
By designing tooth accessories with acute angle extension, the torque effect of the shell-shaped tooth orthodontic device is enhanced, and the problem of limited movement effect of existing accessories is solved, and more efficient tooth positive axis, rotation and torque movement is achieved, and the mold release and removal of the orthodontic device is facilitated.
Patent Information
- Application Number
- CN202311869401.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-07-01
AI Technical Summary
The existing shell-shaped tooth orthodontic accessories have limited effects on lifting the positive axis, rotation, torque and root control movement of the tooth, and more effective accessories are needed to enhance the movement effect of the shell-shaped tooth orthodontic accessories.
An attachment is designed to be bonded to the tooth surface. The first end of the attachment is at an acute angle to the second end and the bonding surface. The second end is away from the first end. The angle between the extension direction and the bonding surface is smaller than the angle of the first end. At least one section extends along the arc. The second section can be bent to increase the bonding area and torque effect.
By enhancing the design of the attachment, the shell-shaped tooth orthodontic device can more effectively apply force and torque to the teeth, improve the effect of tooth movement, reduce the height of the appendix protruding tooth surface, and facilitate mold release and removal of the orthodontic device.
Smart Images
Figure CN120227167A_ABST
Abstract
Description
Technical Field
[0001] The present application generally relates to an attachment, a shell - shaped tooth aligner, and a shell - shaped tooth aligner system. Background Art
[0002] Due to advantages such as aesthetics, convenience, and ease of cleaning, shell - shaped tooth aligners based on polymer materials are becoming increasingly popular.
[0003] A shell - shaped tooth aligner is an integral shell that forms a cavity for accommodating multiple teeth, and the geometric shape of the cavity substantially conforms to these teeth in the corresponding layout.
[0004] Orthodontic treatment using a shell - shaped tooth aligner generally requires dozens of successive shell - shaped tooth aligners. By successively wearing these shell - shaped tooth aligners, the patient's teeth are gradually repositioned from the initial tooth layout to the target tooth layout.
[0005] A shell - shaped tooth aligner uses the resilience generated by deformation to reposition the patient's teeth from the current tooth layout to a predetermined tooth layout. A single shell - shaped tooth aligner has limited effects in some movements, such as uprighting, rotation, torque, and root control. Therefore, when orthodontic treatment involves these movements of teeth, attachments are usually bonded to the tooth surface, and the squeezing and friction between the shell - shaped tooth aligner and the attachments are used to enhance the effects of these movements.
[0006] However, the existing attachments have limited effects in enhancing the above - mentioned movements. Therefore, it is necessary to provide a new attachment. Summary of the Invention
[0007] One aspect of the present application provides an attachment for bonding to the tooth surface, such that a shell - shaped tooth aligner worn on the tooth can apply forces and moments to the tooth through interaction with the attachment. The attachment forms a bonding surface at a first end for bonding the attachment to the tooth surface, and the attachment extends from the bonding surface. Wherein, the line connecting the first end and the second end of the attachment forms an acute angle with the bonding surface, and the second end is the end far from the first end.
[0008] In some embodiments, the angle α between the extending direction of the attachment at the first end and the bonding surface is an acute angle, and the angle θ between the extending direction of the attachment at the second end and the bonding surface is less than α.
[0009] In some embodiments, the attachment extends from the bonding surface to form a first segment, and extends from one end of the first segment away from the bonding surface to form a second segment, which bends towards the direction close to the bonding surface.
[0010] In some embodiments, at least one segment of the attachment extends along an arc.
[0011] In some embodiments, α is less than or equal to 60°.
[0012] In some embodiments, the extension length and width of the attachment are greater than its thickness.
[0013] In some embodiments, the second segment of the attachment is bent around an axis in the width direction of the attachment.
[0014] In some embodiments, the attachment is for bonding to the buccal or lingual side of the tooth and extending toward the occlusal surface of the tooth, and the shell - shaped tooth aligner provides an ortho - axial moment to the tooth through interaction with the attachment.
[0015] In some embodiments, the distance from the end of the second segment of the attachment to the bonding surface is greater than or equal to 0.5 mm.
[0016] In some embodiments, the second end of the attachment forms a protrusion on the side close to the bonding surface and a recess on the side away from the bonding surface.
[0017] Another aspect of the present application provides a shell - shaped tooth aligner for repositioning a patient's teeth from a first tooth arrangement to a second tooth arrangement. The shell - shaped tooth aligner is an integral shell, forming a first cavity for accommodating multiple teeth and a second cavity for accommodating an attachment. The attachment is bonded to the surface of a first tooth. The shell - shaped tooth aligner can apply a force and a moment to the first tooth through interaction with the attachment. The attachment forms a bonding surface at the first end for bonding the attachment to the surface of the first tooth. The attachment extends from the bonding surface. Wherein, the line connecting the first end and the second end of the attachment forms an acute angle with the bonding surface, and the second end is the end far from the first end.
[0018] In some embodiments, the angle α between the extending direction of the attachment at the first end and the bonding surface is an acute angle, and the angle θ between the extending direction of the attachment at the second end and the bonding surface is less than α.
[0019] In some embodiments, the attachment extends from the bonding surface to form a first segment, and extends from the end of the first segment away from the bonding surface to form a second segment, which bends toward the direction close to the bonding surface.
[0020] In some embodiments, at least one segment of the attachment extends along an arc.
[0021] In some embodiments, it is characterized in that α is less than or equal to 60°.
[0022] In some embodiments, the extension length and width of the attachment are greater than its thickness.
[0023] In some embodiments, the second section of the attachment is bent about an axis in the width direction of the attachment.
[0024] In some embodiments, the attachment is adhered to the buccal or lingual surface of the first tooth and extends towards the occlusal surface of the first tooth, and the shell-shaped tooth aligner provides an uprighting moment to the first tooth through interaction with the attachment.
[0025] In some embodiments, the distance from the end of the second section of the attachment to the bonding surface is greater than or equal to 0.5 mm.
[0026] In some embodiments, a protrusion is formed on one side of the second end of the attachment near the bonding surface, and a recess is formed on the side away from the bonding surface.
[0027] Another aspect of the present application provides a shell-shaped tooth aligner system, which includes an attachment adhered to the surface of a patient's first tooth and a shell-shaped tooth aligner. The shell-shaped tooth aligner is used to reposition the patient's teeth from a first tooth arrangement to a second tooth arrangement. It is an integral shell, forming a first cavity for accommodating multiple teeth of the patient and a second cavity for accommodating the attachment. The shell-shaped tooth aligner can apply forces and moments to the first tooth through interaction with the attachment. The attachment forms a bonding surface at its first end for bonding the attachment to the surface of the first tooth. The attachment extends from the bonding surface. Wherein, the line connecting the first end and the second end of the attachment forms an acute angle with the bonding surface, and the second end is the end far from the first end.
[0028] In some embodiments, the angle α between the extension direction of the attachment at the first end and the bonding surface is an acute angle, and the angle θ between the extension direction of the attachment at the second end and the bonding surface is less than α.
[0029] In some embodiments, the attachment extends from the bonding surface to form a first section, and extends from one end of the first section away from the bonding surface to form a second section, which bends towards the direction close to the bonding surface.
[0030] In some embodiments, at least one section of the attachment extends along an arc.
[0031] In some embodiments, α is less than or equal to 60°.
[0032] In some embodiments, the extension length and width of the attachment are greater than its thickness.
[0033] In some embodiments, the second section of the attachment is bent around an axis in the width direction of the attachment.
[0034] In some embodiments, the attachment is bonded to the buccal or lingual side of the first tooth and extends toward the maxillofacial direction of the first tooth, and the shell-shaped dental appliance provides a positive axis torque to the first tooth through interaction with the attachment.
[0035] In some embodiments, the distance between the end of the second section of the attachment and the bonding surface is greater than or equal to 0.5 mm.
[0036] In some embodiments, the second end of the attachment forms a protrusion on a side close to the bonding surface, and forms a recess on a side away from the bonding surface. BRIEF DESCRIPTION OF THE DRAWINGS
[0037] The above and other features of the present application will be further described below in conjunction with the accompanying drawings and detailed descriptions thereof. It should be understood that these drawings only illustrate several exemplary embodiments according to the present application and should not be considered as limiting the scope of protection of the present application. Unless otherwise specified, the drawings are not necessarily to scale and similar reference numerals represent similar components.
[0038] Figure 1A-1C The attachment bonded to the buccal side of the tooth in one embodiment of the present application is schematically shown;
[0039] Figure 2 Schematically showing a shell-shaped dental appliance and Figure 1A-1C The matching relationship of the accessories shown;
[0040] Figure 3A Schematically showing a shell-shaped dental appliance in one embodiment Figure 1A-1C the forces exerted on the teeth by the indicated attachments; and
[0041] Figure 3B Schematically showing another embodiment of a shell-shaped dental appliance through Figure 1A-1C The forces exerted by the attachments on the teeth are shown. DETAILED DESCRIPTION
[0042] The following detailed description refers to the drawings that form a part of this specification. The illustrative embodiments mentioned in the specification and drawings are for illustrative purposes only and are not intended to limit the scope of protection of the present application. Under the enlightenment of the present application, those skilled in the art will understand that many other embodiments can be adopted, and various changes can be made to the described embodiments without departing from the subject matter and scope of protection of the present application. It should be understood that the various aspects of the present application described and illustrated herein can be arranged, replaced, combined, separated and designed according to many different configurations, and these different configurations are within the scope of protection of the present application.
[0043] Please refer to Figure 1A-1C , schematically shows an attachment 103 bonded to the buccal side of a tooth 101 in one embodiment of the present application, wherein: Figure 1A This is a buccolingual view. Figure 1B This is a mesiodistal view. Figure 1C It is a vertical view.
[0044] One end of the attachment 103 forms a bonding surface 1031 for bonding the attachment 103 to the tooth surface. A first section 1033 is extended from the bonding surface 1031, and the angle α between the extension direction and the bonding surface 1031 is an acute angle. A second section 1035 is extended from one end of the first section 1033 away from the bonding surface 1031, and is bent toward the bonding surface 1031, so that the angle θ between the extension direction of the second section 1035 and the bonding surface 1031 is smaller than α.
[0045] exist Figure 1A-1C In the illustrated embodiment, the attachment 103 bonded to the tooth 101 extends toward the maxillofacial direction, and the second section 1035 is bent toward the bonding surface 1031. This arrangement can reduce the height of the attachment 103 protruding from the surface of the tooth 101 on the one hand, and facilitates the demolding of the shell-shaped dental appliance in the hot pressing film molding process on the other hand, and also facilitates the removal of the shell-shaped dental appliance worn on the patient's dentition.
[0046] In one embodiment, α is less than or equal to 60°.
[0047] In one embodiment, the distance d between the end of the second segment 1035 and the surface of the tooth 101 is greater than or equal to 0.5 mm.
[0048] In one embodiment, the bonding surface 1031 may be a plane. In another embodiment, the bonding surface 1031 may be a curved surface, in which case a plane may be fitted based on the bonding surface 1031, and the angle between the plane and the extension direction of the first section 1033 is used as the angle between the bonding surface 1031 and the extension direction of the first section 1033.
[0049] The total extension length L of the attachment 103 (i.e., the sum of the extension lengths of the first section 1033 and the second section 1035) is greater than the thickness T, which increases the length of the lever, and further enables the shell-shaped tooth aligner to apply a greater moment to the tooth 101 through the attachment 103. The width W of the attachment 103 is greater than the thickness T, which increases the area of the bonding surface 1031, and further enables the improvement of the bonding strength of the attachment 103. The second section 1035 of the attachment 103 is bent around the axis in the width direction.
[0050] Please refer Figure 2 , schematically showing the mating relationship between the shell-shaped tooth aligner 105 and the Figure 1A-1C tooth 101 and the attachment 103 shown in an embodiment.
[0051] The shell-shaped tooth aligner 105 is an integral shell, forming a cavity 1051 for accommodating the tooth and a cavity 1053 for accommodating the attachment 103. The shell-shaped tooth aligner 105 worn on the patient's dentition applies a force and a moment to the tooth 101 through the attachment 103 by means of extrusion and / or friction between the shell-shaped tooth aligner 105 and the attachment 103.
[0052] In one embodiment, the shell-shaped tooth aligner 105 may contact the attachment 103 only in the force application area, and a gap 1055 may be reserved between the shell-shaped tooth aligner 105 and the attachment 103 in other parts.
[0053] In one embodiment, the geometric shape of the part of the cavity 1053 of the shell-shaped tooth aligner 105 that houses the end of the attachment 103 may match the end of the attachment 103.
[0054] Please refer Figure 3A , schematically showing the force application of the shell-shaped tooth aligner (not shown in the figure) to the tooth 101 through the attachment 103 in an embodiment. In this example, the shell-shaped tooth aligner applies a buccolingual force F1 to the attachment 103 near the end of the attachment 103, and this force generates a lingual inclination moment t1 on the tooth 101.
[0055] Please refer Figure 3B , schematically showing the force application of the shell-shaped tooth aligner (not shown in the figure) to the tooth 101 through the attachment 103 in another embodiment. In this example, the shell-shaped tooth aligner applies a mesiodistal force F2 to the attachment 103 near the end of the attachment 103, and this force generates a distal inclination moment t2 on the tooth 101.
[0056] Although, in the above embodiments, the attachment is bonded to the buccal surface of the tooth, it can be understood that, inspired by the present application, the attachment can also be bonded to the lingual surface of the tooth.
[0057] In another embodiment, the attachment of the present application can also be one-piece.
[0058] In another embodiment, the attachment of the present application may not have obvious segments, for example, at least one segment thereof extends along an arc to form a gentle arc.
[0059] Regardless of the form of the attachment of the present application, the line connecting its two ends forms an acute angle with the bonding surface.
[0060] In one embodiment, the end of the attachment may be convex on the side close to the bonding surface and concave on the side away from the bonding surface. This structure can enhance the fit between the shell-shaped dental appliance and the attachment and reduce the height of the attachment protruding from the tooth surface.
[0061] Although various aspects and embodiments of the present application are disclosed herein, other aspects and embodiments of the present application will be apparent to those skilled in the art in light of the present application. The various aspects and embodiments disclosed herein are for illustrative purposes only and not for limiting purposes. The scope and subject matter of the present application are determined solely by the appended claims.
[0062] Likewise, various diagrams may illustrate exemplary architectures or other configurations of the disclosed methods and systems that aid in understanding the features and functions that may be included in the disclosed methods and systems. The claimed content is not limited to the exemplary architectures or configurations shown, and the desired features may be implemented with various alternative architectures and configurations. In addition, for flow charts, functional descriptions, and method claims, the order of blocks presented herein should not be limited to various embodiments that are implemented in the same order to perform the described functions, unless otherwise clearly indicated in the context.
[0063] Unless otherwise expressly noted, the terms and phrases used herein and their variations should be interpreted as open ended, not restrictive. In some instances, the appearance of broad words and phrases such as "one or more", "at least", "but not limited to", or other similar terms should not be understood as an intent or need to indicate a narrowing of the example where such broad terms may not be present.
Claims
1. An attachment for bonding to a tooth surface so that a shell-shaped dental appliance worn on the tooth can exert force and torque on the tooth through interaction with the attachment, wherein the attachment forms a bonding surface at a first end for bonding the attachment to the tooth surface, and the attachment is formed by extending from the bonding surface, wherein: The line connecting the first end and the second end of the attachment forms an acute angle with the bonding surface, and the second end is the end away from the first end.
2. The accessory according to claim 1, wherein The angle α between the extending direction of the attachment at the first end and the bonding surface is an acute angle, and the angle θ between the extending direction of the attachment at the second end and the bonding surface is less than α.
3. The accessory according to claim 2, characterized in that, The attachment extends from the bonding surface to form a first section, and extends from one end of the first section away from the bonding surface to form a second section, which bends towards the direction close to the bonding surface.
4. The attachment according to claim 2, wherein At least one section of the attachment extends along an arc.
5. The accessory according to claim 2, characterized in that α is less than or equal to 60°.
6. The accessory according to claim 1, characterized in that, The extending length and width of the attachment are greater than its thickness.
7. The accessory according to claim 3, characterized in that The second section of the attachment bends around the axis in the width direction of the attachment.
8. The accessory according to claim 1, wherein The attachment is for bonding to the buccal or lingual surface of the tooth and extending towards the occlusal surface of the tooth, and the shell-shaped tooth orthodontic appliance provides an uprighting moment to the tooth through the interaction with the attachment.
9. The accessory according to claim 1, wherein The distance from the end of the second section of the attachment to the bonding surface is greater than or equal to 0.5 mm.
10. The accessory according to claim 1, wherein The second end of the attachment forms a protrusion on the side close to the bonding surface and a recess on the side away from the bonding surface.
11. A shell-shaped tooth aligner for repositioning a patient's teeth from a first tooth arrangement to a second tooth arrangement, the shell-shaped tooth aligner being an integral shell that forms a first cavity for accommodating multiple teeth and a second cavity for accommodating an attachment, the attachment being bonded to the surface of a first tooth, the shell-shaped tooth aligner being capable of applying forces and torques to the first tooth through interaction with the attachment, the attachment forming a bonding surface at a first end for bonding the attachment to the surface of the first tooth, the attachment extending from the bonding surface, wherein, The line connecting the first end and the second end of the attachment forms an acute angle with the bonding surface, and the second end is the end away from the first end.
12. The shell-like tooth aligner according to claim 11, wherein, The angle α between the extending direction of the attachment at the first end and the bonding surface is an acute angle, and the angle θ between the extending direction of the attachment at the second end and the bonding surface is less than α.
13. The shell-shaped tooth aligner according to claim 12, wherein, The attachment extends from the bonding surface to form a first section, and extends from one end of the first section away from the bonding surface to form a second section, which bends towards the direction close to the bonding surface.
14. The shell-shaped tooth aligner according to claim 12, wherein, At least one section of the attachment extends along an arc.
15. The shell-like tooth aligner according to claim 12, wherein, α is less than or equal to 60°.
16. The shell-shaped tooth aligner according to claim 11, characterized in that, The extending length and width of the attachment are greater than its thickness.
17. The shell-like tooth aligner according to claim 13, wherein, The second section of the attachment bends around the axis in the width direction of the attachment.
18. The shell-like tooth aligner according to claim 11, wherein, The attachment is bonded to the buccal or lingual surface of the first tooth and extends towards the occlusal surface of the first tooth, and the shell-shaped tooth orthodontic appliance provides an uprighting moment to the first tooth through the interaction with the attachment.
19. The shell-like tooth aligner according to claim 11, wherein, The distance from the end of the second section of the attachment to the bonding surface is greater than or equal to 0.5 mm.
20. The shell-shaped tooth aligner according to claim 11, wherein, The second end of the attachment forms a protrusion on the side close to the bonding surface and a recess on the side away from the bonding surface.
21. A shell-like tooth aligner system, which includes an attachment bonded to the surface of a patient's first tooth and a shell-like tooth aligner. The shell-like tooth aligner is used to reposition the patient's teeth from a first tooth arrangement to a second tooth arrangement. It is an integral shell, forming a first cavity for accommodating multiple teeth of the patient and a second cavity for accommodating the attachment. The shell-like tooth aligner can apply forces and torques to the first tooth through interaction with the attachment. The attachment forms a bonding surface at a first end for bonding the attachment to the surface of the first tooth, and the attachment extends from the bonding surface. Among them, The line connecting the first end and the second end of the attachment forms an acute angle with the bonding surface, and the second end is the end away from the first end.
22. The shell-shaped tooth aligner system according to claim 21, wherein, The angle α between the extending direction of the attachment at the first end and the bonding surface is an acute angle, and the angle θ between the extending direction of the attachment at the second end and the bonding surface is less than α.
23. The shell-shaped tooth aligner system according to claim 22, wherein, The attachment extends from the bonding surface to form a first section, and extends from one end of the first section away from the bonding surface to form a second section, which bends towards the direction close to the bonding surface.
24. The shell-like tooth aligner system according to claim 22, wherein, At least one section of the attachment extends along an arc.
25. The shell-shaped tooth aligner system according to claim 22, wherein, α is less than or equal to 60°.
26. The shell-like tooth aligner system according to claim 21, wherein, The extending length and width of the attachment are greater than its thickness.
27. The shell-like tooth aligner system according to claim 23, wherein The second section of the attachment bends around the axis in the width direction of the attachment.
28. The shell-like tooth aligner system according to claim 21, wherein The attachment is adhered to the buccal or lingual surface of the first tooth and extends toward the occlusal surface of the first tooth, and the shell tooth aligner provides a torque for uprighting the first tooth through interaction with the attachment.
29. The shell-shaped tooth aligner system according to claim 21, wherein, The distance from the end of the second segment of the attachment to the bonding surface is greater than or equal to 0.5 mm.
30. The shell-shaped tooth aligner system according to claim 21, wherein, The second end of the attachment forms a protrusion on the side close to the bonding surface and a recess on the side away from the bonding surface.