An invisible orthodontic appliance for realizing three-dimensional rotation control of teeth

Abstract

The present invention relates to the field of oral medicine orthodontic technology, and provides an invisible brace that can efficiently realize three-dimensional rotation control of teeth. The invisible brace mainly includes a brace structure for covering teeth, and the brace structure includes a tooth brace structure corresponding to a single tooth. A plurality of protrusions are arranged on the tooth brace structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface, and the mesiodistal surface, and the three-dimensional rotation control of teeth can be realized by the forces acting on the teeth by the plurality of protrusions, or the forces acting on the teeth by the plurality of protrusions and the tooth brace structure (excluding the protrusions) can be realized by the three-dimensional rotation control of teeth. The invisible brace can enable teeth to obtain good torque control, efficient axial tilt and torsion correction, and improve the realization rate of tooth movement, correction efficiency, and medical safety controllability.

Description

Technical Field

[0001] The present invention relates to the technical field of oral medicine orthodontics, and in particular to an invisible orthodontic appliance capable of efficiently realizing three-dimensional rotation control of teeth. Background Art

[0002] With the rapid development of stomatology, computer-aided design and manufacturing technology, and polymer material science, oral orthodontic technology has ushered in a revolutionary change. As an outstanding representative of this change, invisible orthodontic technology, its core concept is to use highly transparent elastic plastic materials, combined with advanced digital scanning, 3D modeling and rapid prototyping technology, to customize personalized orthodontic appliances that are highly consistent with the patient's tooth shape.

[0003] Compared with the traditional correction method that relies on metal brackets and archwires, the invisible correction technology is based on the patient's digital dental model data and is precisely designed through computer software. It takes into account the individual differences and correction needs of the patient. While providing a personalized and comfortable correction experience, it ensures that each stage of movement is under control, ultimately achieving the ideal arrangement and occlusion of the teeth.

[0004] However, the current invisible braces still have many defects, one of the main ones being that the invisible braces have obvious deficiencies in the three-dimensional control of tooth movement. Although the invisible braces can enhance the three-dimensional control of teeth to a certain extent with the help of accessories, there are still great deficiencies in the control of tooth rotation in three dimensions (three-dimensional rotation). The three-dimensional rotation control of teeth includes tooth torque (labiolingual tilt), axial tilt (mesiodistal tilt), torsion (rotation around the long axis of the tooth, such as mesiodistal torsion of the labial surface of the tooth), etc. According to the long-term clinical summary of the inventor of the present invention, the deficiencies of the invisible braces in the three-dimensional rotation control of teeth are as follows:

[0005] 1. Torsion control: For oblate teeth, the braces structure has a larger thrust action area on the relatively flat tooth surface; however, for cylindrical teeth, the braces have a smaller contact area on each surface, and the force is prone to "slipping". Therefore, for cylindrical teeth such as canines and premolars, when twisting, the braces' action surface on the tooth is usually the smaller and less flat side (mesiodistal surface), and it is more difficult to use invisible braces to control the twisting of such teeth.

[0006] 2. Torque control: For tooth extraction cases, the control of the labial and lingual inclination of the anterior teeth is a difficult point in treatment. At present, in order to solve this problem clinically, a power ridge is set on the labial and gingival side of the anterior teeth, but it is not only easy to cause the gingival margin of the braces to deform, but also can only produce a relatively single force.

[0007] 3. Torque control: For cases of torque loss (lingual inclination of anterior teeth), restoring the anterior teeth torque is still a difficult point in treatment. The specific description is the same as point 2.

[0008] 4. Axis tilt control: For example, the mesial tilt of canines and premolars, in general, the mesial surface of the teeth is used to generate a force that acts distally and occlusally to correct the mesial tilt of the teeth. However, on the one hand, since the teeth are cylindrical, the force on the mesial surface is limited, and the force applied by the brace surface is prone to slippage; on the other hand, the mesial surface is located between adjacent teeth, and most of the tooth surface is blocked by the mesial tooth position, so the effect of braces alone is very limited.

[0009] 5. Axial inclination control: The prevention of mesial inclination during the mesial movement of posterior teeth in tooth extraction cases has the same control difficulty as point 4.

[0010] Based on the above-mentioned deficiencies of invisible braces in controlling the three-dimensional rotation of teeth, there is an urgent need for an invisible braces that can significantly solve or improve the above-mentioned problems, improve the correction effect and treatment efficiency of oral orthodontics, and open up a new direction for the development of this field. Summary of the invention

[0011] In view of the shortcomings of the prior art mentioned above, the object of the present invention is to provide an invisible braces device that can efficiently realize three-dimensional rotation control of teeth. The invisible braces device can enable the teeth to obtain good torque control, efficient axial inclination and torsion correction, and then achieve efficient long-distance extraction space closure, long-distance overall depression of the front and back teeth, long-distance mesiodistal movement and rotation, long-distance labial / buccal-lingual rotation and other high-difficulty movements, thereby improving the tooth movement realization rate, correction efficiency and medical safety controllability.

[0012] To achieve the above objectives, the present invention is implemented by adopting a technical solution consisting of the following technical measures.

[0013] The present invention provides an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, a plurality of protrusions are arranged on the tooth braces structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface and the mesiodistal surface of the tooth, and the three-dimensional rotation control of the teeth can be realized jointly by the forces acting on the teeth by the plurality of protrusions respectively, or the three-dimensional rotation control of the teeth can be realized jointly by the forces acting on the teeth by the plurality of protrusions respectively and the forces acting on the teeth by the tooth braces structure (excluding the protrusions).

[0014] In this article, the invisible braces mainly include a brace structure for covering teeth, which can correspond to the maxillary and / or mandibular dentition, or a dentition segment consisting of multiple teeth located in the maxillary and / or mandibular dentition. The other necessary structures of the brace structure are the same as those of conventional invisible braces, and can be designed and manufactured according to the structure of conventional invisible braces, such as the structure of the brace covering the attachment, the structure of the brace covering the gums, and the precision cutting on the brace.

[0015] In this article, the tooth brace structure corresponding to at least one of the tooth surface areas of the labial / buccal surface, lingual / palatal surface and mesiodistal surface is equivalent to the tooth surface area of ​​the corresponding tooth when wearing the invisible braces.

[0016] Those skilled in the art know that existing invisible braces usually rely on the elastic deformation and position limiting of the braces themselves to apply force to the teeth. Therefore, existing invisible braces usually have a brace configuration that completely covers the teeth, and this configuration does not have space for the teeth to move, similar to the covering design that forms a static fit between the invisible braces and the teeth. However, existing invisible braces have deficiencies in the three-dimensional control of tooth movement, including tooth torque (labiolingual tilt), axial tilt (mesiodistal tilt), and twist (for example, labial to mesiodistal twist of the tooth).

[0017] One of the inventive points of the present invention is that, on the basis of retaining a brace structure with sufficient rigidity, a plurality of protrusions are arranged on the brace structure or formed integrally with the brace structure, so that when the protrusion contacts the tooth surface or the surface of the attachment, a directional pushing force or torque is generated, and the teeth are controlled to rotate or a combination of controlled rotation and translation through the action of multiple protrusions or multiple protrusions and the brace. The invisible orthodontic appliance provided by the present invention can enable the teeth to obtain good torque control, efficient axial tilt and torsion correction, and then achieve efficient long-distance extraction gap closure, long-distance overall depression of front and rear teeth, long-distance mesiodistal movement and rotation, long-distance labial / cheek-lingual rotation and other difficult movements, thereby improving the realization rate of tooth movement, correction efficiency and medical safety controllability. At the same time, in one of the technical solutions, when the protrusion is selected to be made of the same material as the invisible braces, its size design gradually reduces the force as the compression deformation recovers when achieving three-dimensional rotation control of the teeth. During long-distance rotation and movement of teeth, it can effectively prevent excessive stress on the periodontium and roots, reduce the incidence of gum / root absorption, and have a protective effect.

[0018] Based on the above invention point, when the three-dimensional rotation control of teeth is jointly realized by the forces acting on the teeth by the multiple protrusions respectively, the structural setting of the tooth braces structure (excluding the protrusions) in the invisible braces device applying the force on the teeth may be included or not included; when the three-dimensional rotation control of teeth is jointly realized by the forces acting on the teeth by the multiple protrusions respectively and the forces acting on the teeth by the tooth braces structure (excluding the protrusions), the structural setting of the tooth braces structure (excluding the protrusions) in the invisible braces device applying the force on the teeth should be included. The structural setting of the tooth braces structure (excluding the protrusions) in the invisible braces device applying the force on the teeth should refer to the conventional invisible braces.

[0019] In one of the technical solutions, a plurality of protrusions are provided on the dental braces structure, which can be realized by protrusions formed by depressions on the dental braces structure, or by the dental braces structure being integrally formed to include the protrusions or fixedly connected to the protrusions.

[0020] In one of the technical solutions, a plurality of protrusions are arranged on the tooth brace structure, and the implementation method is that during the preparation stage of the three-dimensional digital tooth model corresponding to the invisible brace appliance, a plurality of protrusions are arranged on the three-dimensional digital tooth model, and then the invisible brace appliance is prepared according to the model;

[0021] Or,

[0022] Arranging a plurality of protrusions on the three-dimensional digital model of the invisible brace appliance, and preparing the invisible brace appliance by 3D printing;

[0023] Or,

[0024] During the forming stage of preparing the invisible braces, further processing is performed to form protrusions through local deformation or local fixed connection of protrusions to prepare the invisible braces.

[0025] In one technical solution, the dental brace structure is provided with a plurality of protrusions, and the shape of the protrusions includes any one of a cylinder, a semi-cylinder, a cone, a truncated cone, a hemisphere, a prism, a semi-prism, a pyramid, or a polyhedron similar to the above shapes; the outer diameter of the protrusion is 0.5-2.0 mm, and the height is 0.2-1.0 mm. Furthermore, when the shape of the protrusion is a prism, a semi-prism, or other shape with edges and corners on the side, these edges and corners can be rounded.

[0026] In one preferred technical solution, the dental brace structure is provided with a plurality of protrusions, which include dot-shaped protrusions and / or strip-shaped protrusions. The shape of the dot-shaped protrusions includes any one of a cylinder, a semi-cylinder, a cone, a truncated cone, a hemisphere, a prism, a semi-prism, and a pyramid, or a polyhedron similar to the above shapes. The outer diameter of the dot-shaped protrusions is 0.5-2.0 mm, and the height is 0.2-1.0 mm; the shape of the strip-shaped protrusions is a long strip or linear protrusion formed by connecting a plurality of continuous dot-shaped protrusions. The length of the strip-shaped protrusions is not less than 2 mm, the width is 0.5-1.5 mm, and the height is 0.2-1.0 mm. Furthermore, when the dot-shaped protrusions or strip-shaped protrusions are in the shape of a prism, a semi-prism, or other shapes with edges and corners on the side, these edges and corners can be rounded.

[0027] In one of the technical solutions, a plurality of protrusions are provided on the tooth brace structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface and the mesiodistal surface, and when there are a plurality of protrusions in the same tooth surface area, the plurality of protrusions are arranged to form a linear protrusion array. Furthermore, the linear orientation of the linear protrusion array is the same as the tooth long axis orientation and / or perpendicular to the tooth long axis orientation.

[0028] In one of the technical solutions, a plurality of protrusions are arranged on the dental braces structure corresponding to at least one of the tooth surface areas including the labial / buccal surface, lingual / palatal surface and mesiodistal surface, and the protrusions in one or more of the tooth surface areas are strip-shaped protrusions, and the linear orientation and distribution of the strip-shaped protrusions are the same as the above-mentioned linear protrusion array.

[0029] In order to better illustrate how the present invention realizes three-dimensional rotation control of teeth through the forces exerted on the teeth by the multiple protrusions respectively, in one of the more preferred technical solutions, a plurality of protrusions are provided on the tooth braces structure of the tooth surface areas corresponding to the lip / buccal surfaces and the lingual / palatal surfaces of the teeth, and the protrusions are respectively located at the mesial / distal positions of the axial ridges of the corresponding lip / buccal surfaces and the lingual / palatal surfaces of the teeth, or at the mesial / distal positions of the mesial / distal line angles of the lip / buccal surfaces and the lingual / palatal surfaces, and the three-dimensional rotation control of teeth is realized through the forces exerted on the teeth by the multiple protrusions respectively. For example, the protrusions are respectively located at the mesial position of the axial ridge of the corresponding lip / buccal surface of the tooth or at the mesial position of the mesial angle, and at the distal position of the axial ridge of the corresponding lingual / palatal surface of the tooth or at the distal position of the distal angle, and the distal rotation (torsion) of the lip / buccal side of the tooth is controlled by the forces exerted on the teeth by multiple protrusions; the protrusions are respectively located at the distal position of the axial ridge of the corresponding lip / buccal surface of the tooth or at the distal position of the distal angle, and at the mesial position of the axial ridge of the corresponding lingual / palatal surface of the tooth or at the mesial position of the mesial angle, and the mesial rotation (torsion) of the lip / buccal side of the tooth is controlled by the forces exerted on the teeth by multiple protrusions.

[0030] In order to better illustrate how the present invention realizes three-dimensional rotation control of teeth by the forces exerted on the teeth by the multiple protrusions, in one of the more preferred technical solutions, multiple protrusions are provided on the tooth brace structure corresponding to the tooth surface area of ​​the lip / buccal surface and the lingual / palatal surface of the teeth, and the protrusions are respectively located at the incisal / cheek end position and the near tooth neck position of the lip / buccal surface and the lingual / palatal surface of the corresponding teeth, and the three-dimensional rotation control of teeth is realized by the forces exerted on the teeth by the multiple protrusions. For example, the protrusions are respectively located at the incisal / cheek end position of the lip / buccal surface of the corresponding teeth, and at the near tooth neck position of the lingual / palatal surface of the corresponding teeth, and the lingual rotation control of the tooth crown is realized by the forces exerted on the teeth by the multiple protrusions; the protrusions are respectively located at the near tooth neck position of the lip / buccal surface of the corresponding teeth, and at the incisal / cheek end position of the lingual / palatal surface of the corresponding teeth, and the lip rotation control of the tooth crown is realized by the forces exerted on the teeth by the multiple protrusions.

[0031] In order to better illustrate how the present invention realizes three-dimensional rotation control of teeth through the forces exerted on the teeth by the multiple protrusions respectively, in one of the more preferred technical solutions, when the mesiodistal surface of the tooth contacts with the tooth braces structure, a plurality of protrusions are provided on the tooth braces structure at the tooth surface area corresponding to the mesiodistal surface of the tooth, and the protrusions are respectively located at the contact area between the mesiodistal surface of the corresponding tooth and the tooth braces structure, and the three-dimensional rotation control of the tooth is realized through the forces exerted on the teeth by the multiple protrusions respectively.

[0032] Furthermore, in one of the preferred technical solutions, the multiple protrusions are linear protrusion arrays, and the linear protrusion array is composed of multiple protrusions arranged, and the size and direction of the force exerted by the linear protrusion array on the teeth are controlled by setting the spacing of the multiple protrusions. For example, the protrusions are respectively located at the distal position of the axial ridge corresponding to the labial / buccal surface of the teeth, and at the mesial position of the axial ridge corresponding to the lingual / palatal surface of the teeth. The distal position of the axial ridge of the corresponding teeth and the mesial position of the axial ridge are linear protrusion arrays composed of 3 to 5 protrusions respectively. The linear protrusion array is parallel to the long axis of the tooth, and the protrusion spacing at the mesial position of the axial ridge of the corresponding teeth is at least 1.5 times the protrusion spacing at the distal position of the axial ridge of the corresponding teeth, so that the forces exerted on the teeth by the multiple protrusions are jointly achieved to achieve greater torque for the mesial rotation control of the labial / buccal side of the teeth.

[0033] Further, in one of the preferred technical solutions, the multiple protrusions are linear protrusion arrays, and the linear protrusion arrays are composed of multiple protrusions arranged in an arrangement, and the linear protrusion arrays are respectively arranged on the tooth brace structure corresponding to the tooth surface area of ​​the lip / cheek surface and the tongue / palate surface of the tooth, and the linear protrusion arrays are respectively located at the incisal / incisal end position and the position near the neck of the tooth of the lip / cheek surface and the tongue / palate surface of the corresponding tooth, and the linear protrusion array is perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved by the forces acting on the teeth by multiple linear protrusion arrays. Compared with a single protrusion or a strip protrusion, the linear protrusion array can better avoid the deformation of the brace at the tooth neck near the lip / cheek surface and the tongue / palate surface.

[0034] Further, in one of the preferred technical solutions, the multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and the linear protrusion array is composed of multiple protrusions arranged, and the linear protrusion array and strip-shaped protrusions are arranged on the tooth brace structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface of the tooth, and the linear protrusion array is located at the position of the tooth neck near the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion is located at the position of the incisal / incisal end of the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion and the linear protrusion array are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved by the linear protrusion array and the strip-shaped protrusion acting on the tooth respectively. Because the contact surface of the strip-shaped protrusion is larger, the force value generated is larger, so that the tooth crown tongue / crown labial rotation control with a larger torque is jointly achieved by the linear protrusion array and the strip-shaped protrusion acting on the tooth respectively.

[0035] Furthermore, in one of the preferred technical solutions, the multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and wherein the linear protrusion array is composed of multiple protrusions arranged, and the linear protrusion array and the strip-shaped protrusions are arranged on the tooth braces structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface of the teeth, and the linear protrusion array is located at the incisal / incisal end position of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, and the strip-shaped protrusion is located at the near tooth neck position of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, and the strip-shaped protrusions and the linear protrusion array are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly realized by the forces exerted on the teeth by the linear protrusion array and the strip protrusion respectively.

[0036] Furthermore, in one of the preferred technical solutions, the multiple protrusions are strip-shaped protrusions, and the strip-shaped protrusions are respectively located at the mesial / distal positions of the corresponding tooth labial / buccal and lingual / palatal axial ridges, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved through the forces exerted on the teeth by the multiple strip-shaped protrusions. When the protrusions are strip-shaped protrusions, they are suitable for the rotation control of teeth (canines, mandibular premolars) with an appearance close to a cylindrical shape.

[0037] Furthermore, in one of the preferred technical solutions, the multiple protrusions are strip-shaped protrusions, and the strip-shaped protrusions are respectively located at the incisal / incisal ends of the corresponding lip / buccal surfaces and lingual / palatal surfaces of the teeth and at the positions near the necks of the teeth, and the strip-shaped protrusions are parallel to the long axis of the teeth, and the three-dimensional rotation control of the teeth is jointly achieved through the forces exerted on the teeth by the multiple strip-shaped protrusions.

[0038] Further, in one of the preferred technical schemes, the multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and wherein the linear protrusion array is composed of multiple protrusions arranged, and the linear protrusion array and the strip-shaped protrusions are arranged on the tooth braces structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface of the teeth, and the strip-shaped protrusions are respectively located at the mesial / distal position of the axial ridge of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, or at the mesial / distal position of the mesial / distal line angle of the lip / buccal surface and the tongue / palatal surface, and the linear protrusion arrays are respectively located at the incisal / incisal end positions and near the tooth neck positions of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, the linear protrusion array is perpendicular to the long axis of the tooth, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the teeth is jointly achieved by the forces exerted on the teeth by the linear protrusion array and the strip-shaped protrusions respectively. Through the above combination, the linear protrusion array acts on the teeth respectively to jointly realize the lingual / labial rotation control of the tooth crown, and the strip protrusions act on the teeth respectively to jointly realize the mesial / distal tilting during the mesial / distal movement of the teeth.

[0039] In one of the technical solutions, an attachment may be bonded to the corresponding raised position on the tooth, so that the force of the protrusion on the tooth is further increased by allowing the protrusion to directly act on the attachment on the tooth. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 This is a schematic diagram of the overall structure of the invisible braces in Example 1 of the present invention.

[0041] Figure 2 This is a schematic structural diagram of a cross section of a tooth brace structure A along the long axis of a tooth in an invisible brace appliance in Example 1 of the present invention.

[0042] Figure 3 Schematic diagram of the overall structure of the invisible braces in Example 2 of the present invention.

[0043] Figure 4 This is a schematic diagram of the overall structure of the invisible braces in Example 4 of the present invention.

[0044] Figure 5 This is a schematic diagram of the structure of the buccal view of the invisible braces in Example 5 of the present invention.

[0045] Figure 6 This is a schematic diagram of the overall structure of the invisible braces in Example 6 of the present invention.

[0046] Figure 7 Schematic diagram of the overall structure of the invisible braces from the buccal perspective in Example 7 of the present invention.

[0047] Figure 8 Schematic diagram of the incisal perspective model of the canine and surrounding teeth in the orthodontic appliance dental mold in Example 8 of the present invention.

[0048] Fig. 9 This is a schematic diagram of another viewing angle model of the canine and surrounding teeth in the braces dental mold in Example 8 of the present invention.

[0049] In the figure, 1 tooth braces structure A, 2 strip-shaped protrusion A, 3 tooth braces structure B, 4 cylindrical dot-shaped protrusion B, 5 cylindrical dot-shaped protrusion C, 6 strip-shaped protrusion D, 7 tooth braces structure C, 8 strip-shaped protrusion E, 9 strip-shaped protrusion F, 10 tooth braces structure D, 11 cylindrical dot-shaped protrusion G, 12 strip-shaped protrusion Sin, 13 cylindrical dot-shaped protrusion model, and 14 canine three-dimensional digital model. DETAILED DESCRIPTION

[0050] In order to further understand the present invention, the preferred embodiments of the present invention are described below in conjunction with examples, but it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than limiting the claims of the invention. Those skilled in the art can refer to the content of this article and appropriately improve the process parameters to achieve it. It is particularly important to point out that all similar substitutions and modifications are obvious to those skilled in the art, and they are all considered to be included in the present invention. The methods and applications of the present invention have been described through preferred embodiments, and relevant personnel can obviously change or appropriately change and combine the methods and applications described herein without departing from the content, spirit and scope of the present invention to implement and apply the technology of the present invention. Although it is believed that those of ordinary skill in the art fully understand the following terms, the following definitions are still stated to help illustrate the subject matter disclosed by the present invention.

[0051] The present invention provides an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, a plurality of protrusions are arranged on the tooth braces structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface and the mesiodistal surface of the tooth, and the three-dimensional rotation control of the teeth can be realized jointly by the forces acting on the teeth by the plurality of protrusions respectively, or the three-dimensional rotation control of the teeth can be realized jointly by the forces acting on the teeth by the plurality of protrusions respectively and the forces acting on the teeth by the tooth braces structure (excluding the protrusions).

[0052] In this article, the invisible braces mainly include a brace structure for covering teeth. In one embodiment, the brace structure can correspond to the maxillary and / or mandibular dentition, or can correspond to a dentition segment consisting of multiple teeth located in the maxillary and / or mandibular dentition. The other necessary structures of the brace structure are the same as those of conventional invisible braces, and can be designed and manufactured according to the structure of conventional invisible braces, such as the structure of the brace covering the attachment, the structure of the brace covering the gums, and the precision cutting on the brace.

[0053] In this article, the tooth brace structure corresponding to at least one of the tooth surface areas of the labial / buccal surface, lingual / palatal surface and mesiodistal surface is equivalent to the tooth surface area of ​​the corresponding tooth when wearing the invisible braces.

[0054] Those skilled in the art know that existing invisible braces usually rely on the elastic deformation and position limiting of the braces themselves to apply force to the teeth. Therefore, existing invisible braces usually have a brace configuration that completely covers the teeth, and this configuration does not have space for the teeth to move, similar to the covering design that forms a static fit between the invisible braces and the teeth. However, existing invisible braces have deficiencies in the three-dimensional control of tooth movement, including tooth torque (labiolingual tilt), axial tilt (mesiodistal tilt), and twist (for example, labial to mesiodistal twist of the tooth).

[0055] One of the inventive points of the present invention is that, on the basis of retaining a brace structure with sufficient rigidity, a plurality of protrusions are arranged on the brace structure or formed integrally with the brace structure, so that when the protrusion contacts the tooth surface or the surface of the attachment, a directional pushing force or torque is generated, and the teeth are controlled to rotate or a combination of controlled rotation and translation through the action of multiple protrusions or multiple protrusions and the brace. The invisible orthodontic appliance provided by the present invention can enable the teeth to obtain good torque control, efficient axial tilt and torsion correction, and then achieve efficient long-distance extraction gap closure, long-distance overall depression of front and rear teeth, long-distance mesiodistal movement and rotation, long-distance labial / cheek-lingual rotation and other difficult movements, thereby improving the realization rate of tooth movement, correction efficiency and medical safety controllability. At the same time, in one of the technical solutions, when the protrusion is selected to be made of the same material as the invisible braces, its size design gradually reduces the force as the compression deformation recovers when achieving three-dimensional rotation control of the teeth. During long-distance rotation and movement of teeth, it can effectively prevent excessive stress on the periodontium and roots, reduce the incidence of gum / root absorption, and have a protective effect.

[0056] Based on the above invention point, in one embodiment, when the three-dimensional rotation control of teeth is jointly achieved by the forces acting on the teeth by the multiple protrusions respectively, the structural setting of the tooth braces structure (excluding the protrusions) in the invisible braces device applying the force on the teeth may be included or not included; when the three-dimensional rotation control of teeth is jointly achieved by the forces acting on the teeth by the multiple protrusions respectively and the forces acting on the teeth by the tooth braces structure (excluding the protrusions), the structural setting of the tooth braces structure (excluding the protrusions) in the invisible braces device applying the force on the teeth should be included. The structural setting of the tooth braces structure (excluding the protrusions) in the invisible braces device applying the force on the teeth should refer to the conventional invisible braces.

[0057] In one embodiment, a plurality of protrusions are provided on the dental braces structure, which may be realized by forming protrusions based on depressions on the dental braces structure, or by integrally molding the dental braces structure to include the protrusions or by fixing the protrusions.

[0058] In one embodiment, the tooth brace structure is provided with a plurality of protrusions, which is implemented by providing a plurality of protrusions on the three-dimensional digital tooth model corresponding to the invisible brace in the preparation stage of the three-dimensional digital tooth model, and then preparing the invisible brace according to the model;

[0059] Or,

[0060] Arranging a plurality of protrusions on the three-dimensional digital model of the invisible brace appliance, and preparing the invisible brace appliance by 3D printing;

[0061] Or,

[0062] During the forming stage of preparing the invisible braces, further processing is performed to form protrusions through local deformation or local fixed connection of protrusions to prepare the invisible braces.

[0063] In one embodiment, a plurality of protrusions are provided on the dental braces structure, and the shape of the protrusions includes any one of a cylinder, a semi-cylinder, a cone, a truncated cone, a hemisphere, a prism, a semi-prism, and a pyramid, or a polyhedron similar to the above shapes; the outer diameter of the protrusion is 0.5-2.0 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm or any range or point value therebetween; the height is 0.2-1.0 mm, for example, 0.20 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, 0.30 mm, In some embodiments, the projection has a prism, a semi-prism, a prism or a plurality of prisms, wherein the projection has a prism, a semi- ...

[0064] In one preferred embodiment, a plurality of protrusions are provided on the dental braces structure, and the protrusions include point protrusions and / or strip protrusions. The shape of the point protrusions includes any one of a cylinder, a semi-cylinder, a cone, a truncated cone, a hemisphere, a prism, a semi-prism, and a pyramid, or a polyhedron similar to the above shapes. The outer diameter of the point protrusion is 0.5~2.0 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm or any range or point value therebetween; the height is 0.2~1.0 mm, for example, 0.20 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, .48 mm, 0.49 mm, 0.50 mm, 0.55 mm, 0.60 mm, 0.65 mm, 0.70 mm, 0.75 mm, 0.80 mm, 0.85 mm, 0.90 mm, 0.95 mm, 1.00 mm or any range or point value therebetween; the shape of the strip-like protrusion is a long strip or linear protrusion formed by connecting a plurality of continuous point-like protrusions, and the length of the strip-like protrusion is not less than 2 , 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, 2.6 mm, 2.7 mm, 2.8 mm, 2.9 mm, 3.0 mm, 3.1 mm, 3.2 mm, 3.3 mm, 3.4 mm, 3.5 mm, 3.6 mm, 3.7 mm, 3.8 mm, 3.9 mm, 4.0 mm, 4.1 mm, 4.2 mm, 4.3 mm, 4.4 mm, 4.5 mm, 4.6 mm, 4.7 mm, 4.8 mm, 4.9 mm, 5.0 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm, 6.0 mm or any range or point value therebetween; a width of 0.5 to 1.5 mm, for example, 0.5 mm, 0.6 mm, 0.7 mm, 0.8 mm, 5.9 mm, 6.0 mm or any range or point value therebetween;8 mm, 0.9 mm, 1.0 mm, 1.1 mm, 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm or any range or point value therebetween; the height is 0.2 to 1.0 mm, for example, 0.20 mm, 0.21 mm, 0.22 mm, 0.23 mm, 0.24 mm, 0.25 mm, 0.26 mm, 0.27 mm, 0.28 mm, 0.29 mm, 0.30 mm, 0.31 mm, 0.32 mm, 0.33 mm, 0.34 mm, 0.35 mm, 0.36 mm, 0.37 mm, 0.38 mm, 0.39 mm, 0.40 mm, 0.41 mm, 0.42 mm, 0.43 mm, 0.44 mm, 0.45 mm, 0.46 mm, 0.47 mm, 0.48 mm, 0.49 mm, 0.50 mm, mm, 0.55 mm, 0.60 mm, 0.65 mm, 0.70 mm, 0.75 mm, 0.80 mm, 0.85 mm, 0.90 mm, 0.95 mm, 1.00 mm or any range or point value therebetween. Further, when the dot-shaped protrusions or strip-shaped protrusions are in the shape of prisms, semi-prisms or other shapes with edges and corners on the side, these edges and corners may be rounded.

[0065] In one embodiment, a plurality of protrusions are provided on the tooth brace structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface and the mesiodistal surface, and when there are a plurality of protrusions in the same tooth surface area, the plurality of protrusions are arranged to form a linear protrusion array. Furthermore, the linear orientation of the linear protrusion array is the same as the tooth long axis orientation and / or perpendicular to the tooth long axis orientation.

[0066] In one embodiment, a plurality of protrusions are provided on a dental brace structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface and the mesiodistal surface, and the protrusions in one or more of the tooth surface areas are strip-shaped protrusions, and the linear orientation and distribution of the strip-shaped protrusions are the same as the above-mentioned linear protrusion array.

[0067] In order to better illustrate how the present invention realizes three-dimensional rotation control of teeth through the forces exerted on the teeth by the multiple protrusions respectively, in one of the more preferred embodiments, a plurality of protrusions are provided on the tooth braces structure of the tooth surface areas corresponding to the lip / buccal surfaces and the lingual / palatal surfaces of the teeth, and the protrusions are respectively located at the mesial / distal positions of the axial ridges of the corresponding lip / buccal surfaces and the lingual / palatal surfaces of the teeth, or at the mesial / distal positions of the mesial / distal line angles of the lip / buccal surfaces and the lingual / palatal surfaces, and the three-dimensional rotation control of teeth is realized through the forces exerted on the teeth by the multiple protrusions respectively. For example, the protrusions are respectively located at the mesial position of the axial ridge of the corresponding lip / buccal surface of the tooth or at the mesial position of the mesial angle, and at the distal position of the axial ridge of the corresponding lingual / palatal surface of the tooth or at the distal position of the distal angle, and the distal rotation (torsion) of the lip / buccal side of the tooth is controlled by the forces exerted on the teeth by multiple protrusions; the protrusions are respectively located at the distal position of the axial ridge of the corresponding lip / buccal surface of the tooth or at the distal position of the distal angle, and at the mesial position of the axial ridge of the corresponding lingual / palatal surface of the tooth or at the mesial position of the mesial angle, and the mesial rotation (torsion) of the lip / buccal side of the tooth is controlled by the forces exerted on the teeth by multiple protrusions.

[0068] In order to better illustrate how the present invention realizes three-dimensional rotation control of teeth by the forces exerted on the teeth by the multiple protrusions, in one of the more preferred embodiments, multiple protrusions are provided on the tooth brace structure corresponding to the tooth surface areas of the lip / buccal surface and the lingual / palatal surface of the teeth, and the protrusions are respectively located at the incisal / cheek end positions and the tooth neck positions of the lip / buccal surface and the lingual / palatal surface of the corresponding teeth, and the three-dimensional rotation control of teeth is realized by the forces exerted on the teeth by the multiple protrusions. For example, the protrusions are respectively located at the incisal / cheek end positions of the lip / buccal surface of the corresponding teeth, and at the tooth neck positions of the lingual / palatal surface of the corresponding teeth, and the lingual rotation control of the tooth crown is realized by the forces exerted on the teeth by the multiple protrusions; the protrusions are respectively located at the tooth neck positions of the lip / buccal surface of the corresponding teeth, and at the incisal / cheek end positions of the lingual / palatal surface of the corresponding teeth, and the lip rotation control of the tooth crown is realized by the forces exerted on the teeth by the multiple protrusions.

[0069] In order to better illustrate how the present invention realizes three-dimensional rotation control of teeth through the forces exerted on the teeth by the multiple protrusions respectively, in one of the more preferred embodiments, when the mesiodistal surfaces of the teeth are in contact with the tooth braces structure, a plurality of protrusions are provided on the tooth braces structure in the tooth surface area corresponding to the mesiodistal surfaces of the teeth, and the protrusions are respectively located in the contact area between the mesiodistal surfaces of the corresponding teeth and the tooth braces structure, and the three-dimensional rotation control of the teeth is realized through the forces exerted on the teeth by the multiple protrusions respectively.

[0070] Furthermore, in one preferred embodiment, the plurality of protrusions are linear protrusion arrays, and the linear protrusion array is composed of a plurality of protrusions arranged, and the size and direction of the force exerted by the linear protrusion array on the teeth are controlled by setting the spacing of the plurality of protrusions. For example, the protrusions are respectively located at the distal position of the axial ridge corresponding to the labial / buccal surface of the teeth, and at the mesial position of the axial ridge corresponding to the lingual / palatal surface of the teeth, and the distal position of the axial ridge of the corresponding teeth and the mesial position of the axial ridge are linear protrusion arrays composed of 3 to 5 protrusions respectively, the linear protrusion array is parallel to the long axis of the tooth, and the protrusion spacing at the mesial position of the axial ridge of the corresponding teeth is at least 1.5 times the protrusion spacing at the distal position of the axial ridge of the corresponding teeth, thereby achieving greater torque for the mesial rotation control of the labial / buccal side of the teeth through the forces exerted on the teeth by the plurality of protrusions.

[0071] Further, in one preferred embodiment, the plurality of protrusions are linear protrusion arrays, and the linear protrusion arrays are composed of a plurality of protrusions arranged in an arrangement, and the linear protrusion arrays are respectively arranged on the tooth brace structure corresponding to the tooth surface area of ​​the lip / cheek surface and the tongue / palate surface of the tooth, and the linear protrusion arrays are respectively located at the incisal / incisal end position and the position near the neck of the tooth of the lip / cheek surface and the tongue / palate surface of the corresponding tooth, and the linear protrusion arrays are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved by the forces acting on the teeth by the plurality of linear protrusion arrays. Compared with a single protrusion or a strip-shaped protrusion, the linear protrusion array can better avoid the deformation of the brace at the tooth neck near the lip / cheek surface and the tongue / palate surface.

[0072] Further, in one preferred embodiment, the plurality of protrusions are linear protrusion arrays and strip-shaped protrusions, and the linear protrusion array is composed of a plurality of protrusions arranged in an arrangement, and the linear protrusion array and strip-shaped protrusions are provided on the tooth brace structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface of the tooth, and the linear protrusion array is located at the position of the tooth neck near the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion is located at the position of the incisal / incisal end of the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion and the linear protrusion array are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly realized by the linear protrusion array and the strip-shaped protrusion acting on the tooth respectively. Because the contact surface of the strip-shaped protrusion is larger, the force value generated is larger, so that the tooth crown tongue / crown labial rotation control with a larger torque is jointly realized by the linear protrusion array and the strip-shaped protrusion acting on the tooth respectively.

[0073] Further, in one preferred embodiment, the multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and wherein the linear protrusion array is composed of multiple protrusions arranged, and the linear protrusion array and the strip-shaped protrusions are provided on the tooth braces structure corresponding to the tooth surface areas of the lip / buccal surface and the tongue / palatal surface of the teeth, and the linear protrusion array is located at the incisal / incisal end position of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, and the strip-shaped protrusion is located at the near tooth neck position of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, and the strip-shaped protrusions and the linear protrusion array are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved by the forces exerted on the teeth by the linear protrusion array and the strip protrusion respectively.

[0074] Furthermore, in one preferred embodiment, the plurality of protrusions are strip-shaped protrusions, and the strip-shaped protrusions are respectively located at the mesial / distal positions of the axial ridges of the corresponding tooth labial / buccal and lingual / palatal surfaces, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved by the forces exerted on the teeth by the plurality of strip-shaped protrusions. When the protrusions are strip-shaped protrusions, they are suitable for the rotation control of teeth (canines, mandibular premolars) whose appearance is close to a cylindrical shape.

[0075] Furthermore, in one of the preferred embodiments, the multiple protrusions are strip-shaped protrusions, and the strip-shaped protrusions are respectively located at the incisal / incisal ends of the corresponding lip / buccal surfaces and lingual / palatal surfaces of the teeth and at the positions near the necks of the teeth, and the strip-shaped protrusions are parallel to the long axis of the teeth, and the three-dimensional rotation control of the teeth is jointly achieved by the forces exerted on the teeth by the multiple strip-shaped protrusions.

[0076] Further, in one preferred embodiment, the multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and wherein the linear protrusion array is composed of multiple protrusions arranged, and the linear protrusion array and the strip-shaped protrusions are provided on the tooth braces structure corresponding to the tooth surface areas of the lip / buccal and lingual / palatal surfaces of the teeth, and the strip-shaped protrusions are respectively located at the mesial / distal position of the axial ridges of the lip / buccal and lingual / palatal surfaces of the corresponding teeth, or at the mesial / distal position of the mesial / distal line angles of the lip / buccal and lingual / palatal surfaces, and the linear protrusion arrays are respectively located at the incisal / incisal end positions and near the tooth neck positions of the lip / buccal and lingual / palatal surfaces of the corresponding teeth, the linear protrusion array is perpendicular to the long axis of the tooth, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the teeth is jointly achieved by the forces exerted on the teeth by the linear protrusion array and the strip-shaped protrusions respectively. Through the above combination, the linear protrusion array acts on the teeth respectively to jointly realize the lingual / labial rotation control of the tooth crown, and the strip protrusions act on the teeth respectively to jointly realize the mesial / distal tilting during the mesial / distal movement of the teeth.

[0077] In one embodiment, an attachment may be bonded to the corresponding protrusion on the tooth, so that the protrusion directly acts on the attachment on the tooth to further increase the force of the protrusion on the tooth.

[0078] The present invention will be further explained in detail with reference to the following examples. However, it should be understood by those skilled in the art that these examples are provided for illustrative purposes only and are not intended to limit the present invention.

[0079] Example 1

[0080] like Figure 1 , 2 As shown, the present embodiment is an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, two strip-shaped protrusions 2 are arranged on the tooth braces structure A 1 corresponding to the tooth surface area of ​​the labial and lingual surfaces of the central incisor, one of the strip-shaped protrusions 2 is located at the cutting end position of the corresponding tooth labial surface, and the other strip-shaped protrusion 2 is located at the position near the tooth neck of the corresponding tooth lingual surface, and the lingual rotation control of the tooth crown is realized by the forces exerted on the teeth by the two strip-shaped protrusions 2 respectively.

[0081] The strip-shaped protrusion 2 is perpendicular to the long axis of the tooth and is in the shape of a linear protrusion formed by connecting a plurality of continuous cylindrical dot-shaped protrusions. The strip-shaped protrusion 2 has a length of 4 mm, a width of 1 mm and a height of 0.5 mm.

[0082] Example 2

[0083] like Figure 3 As shown, the present embodiment is an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, two groups of linear protrusion arrays are arranged on the tooth braces structure B3 of the tooth surface area corresponding to the labial surface and the palatal surface of the central incisor, one group of linear protrusion arrays is located at the position near the tooth neck of the corresponding tooth labial surface, and the other group of linear protrusion arrays is located at the position of the cutting end of the corresponding tooth palatal surface, and the labial rotation control of the tooth crown is realized by the two groups of linear protrusion arrays acting on the teeth respectively.

[0084] Each group of linear protrusion arrays is composed of three cylindrical dot-shaped protrusions B4, the linear orientation is mainly perpendicular to the long axis of the tooth, and can be appropriately adjusted according to the gingival margin of the corresponding tooth labial surface. The outer diameter of the cylindrical dot-shaped protrusions B4 is 1.0 mm and the height is 0.5 mm. The spacing between adjacent cylindrical dot-shaped protrusions B4 in each group of linear protrusion arrays is 1.2 mm.

[0085] Compared with the strip-shaped protrusions used in the implementation scheme of Example 1, it can better avoid the deformation of the braces at the neck of the incisor on the labial side, and is suitable for general cases of controlling the labiopalatal inclination of the anterior teeth.

[0086] Example 3

[0087] Example 3 is based on the implementation scheme of Example 2, wherein the three cylindrical dot-shaped protrusions in each group of linear protrusion arrays are replaced with strip-shaped protrusions, and the strip-shaped protrusions are oriented perpendicular to the long axis of the tooth, and have a shape of linear protrusions formed by connecting multiple continuous cylindrical dot-shaped protrusions. The length of the strip-shaped protrusion is 1 / 4 of the length of the central incisor crown, the width is 1.0 mm, and the height is 0.5 mm.

[0088] Compared with the cylindrical point-shaped protrusions used in the implementation scheme of Example 2, the strip-shaped protrusions in this example provide greater force and generate a greater force couple for controlling the labiopalatal torque of the teeth.

[0089] Example 4

[0090] like Figure 4 As shown, the present embodiment is an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, a group of linear protrusion arrays and a strip protrusion D6 are arranged on the tooth braces structure B3 corresponding to the tooth surface area of ​​the labial surface and the palatal surface of the central incisor, wherein a group of linear protrusion arrays are located at the position near the tooth neck of the corresponding tooth labial surface, and a strip protrusion D6 is located at the cutting end position of the corresponding tooth palatal surface, and the labial rotation control of the tooth crown is jointly realized by the forces acting on the teeth by a group of linear protrusion arrays and a strip protrusion D6 respectively.

[0091] The linear protrusion array is composed of three cylindrical dot-shaped protrusions C5, the linear orientation is mainly perpendicular to the long axis of the tooth, and can be appropriately adjusted according to the gingival margin of the corresponding tooth labial surface. The outer diameter of the cylindrical dot-shaped protrusion C5 is 1.0 mm, the height is 0.5 mm, and the spacing between adjacent cylindrical dot-shaped protrusions C5 is 1.2 mm.

[0092] The strip-shaped protrusion D 6 is oriented perpendicular to the long axis of the tooth, and is in the shape of a linear protrusion formed by connecting a plurality of continuous cylindrical dot-shaped protrusions. The strip-shaped protrusion D 6 has a length of 4 mm, a width of 1.0 mm, and a height of 0.5 mm.

[0093] Compared with the implementation scheme of Example 2, since the strip protrusions have a larger contact surface than the linear protrusion array and generate a larger force, they will also generate a labial force on the palatal cutting side, increasing the labial torque of the crown and the palatal torque of the root, which is suitable for cases where palatal tilt of the anterior teeth is extremely undesirable.

[0094] Example 5

[0095] like Figure 5As shown, the present embodiment is an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, two strip-like protrusions E8 are arranged on the tooth braces structure C7 in the tooth surface area corresponding to the labial and palatal surfaces of the canines, one of the strip-like protrusions E8 is located at the mesial position of the axial ridge of the labial surface of the corresponding incisor, and the other strip-like protrusion E8 is located at the distal position of the axial ridge of the palatal surface of the corresponding tooth, and the distal rotation (twist) control of the tooth on the labial side is jointly realized by the forces exerted on the teeth by the two strip-like protrusions E8 respectively.

[0096] The strip-shaped protrusion 58 is parallel to the long axis of the tooth, and has a shape of a linear protrusion formed by connecting a plurality of continuous cylindrical point-shaped protrusions. The strip-shaped protrusion 58 has a length of 5 mm, a width of 1.0 mm, and a height of 0.4 mm.

[0097] Example 6

[0098] like Figure 6 As shown, the present embodiment is an invisible braces device for efficiently realizing three-dimensional rotation control of teeth, the invisible braces device mainly comprises a braces structure for covering teeth, the braces structure comprises a tooth braces structure corresponding to a single tooth, two groups of linear protrusion arrays are arranged on the tooth braces structure B3 corresponding to the tooth surface area of ​​the labial surface and the palatal surface of the central incisor, one group of linear protrusion arrays is located at the mesial position of the axial ridge of the labial surface of the corresponding incisor, and the other group of linear protrusion arrays is located at the distal position of the axial ridge of the palatal surface of the corresponding tooth, and the distal rotation (twist) control of the tooth labial side is jointly realized by the forces exerted on the teeth by the two groups of linear protrusion arrays respectively.

[0099] The linear protrusion array is composed of two strip-shaped protrusions 9, and the linear orientation is mainly parallel to the long axis of the tooth; the strip-shaped protrusions 9 are also parallel to the long axis of the tooth, and the shape is a linear protrusion formed by connecting multiple continuous cylindrical point-shaped protrusions. The length of the strip-shaped protrusions 9 is 2 mm, the width is 0.5 mm, the height is 0.3 mm, and the spacing between adjacent strip-shaped protrusions 9 is 1.0 mm.

[0100] Compared to the single strip protrusion used in the implementation scheme of Example 5, the linear protrusion array of this embodiment provides relatively less force, and the force couple generated for controlling the labial distal rotation (torsion) of the tooth is also smaller.

[0101] Example 7

[0102] like Figure 7As shown, the present embodiment is an invisible orthodontic appliance for efficiently realizing three-dimensional rotation control of teeth, the invisible orthodontic appliance mainly comprises a brace structure for covering teeth, the brace structure comprises a tooth brace structure corresponding to a single tooth, two groups of linear protrusion arrays and two strip protrusions Xin 12 are arranged on the tooth brace structure Ding 10 corresponding to the tooth surface area of ​​the labial surface and the palatal surface of the molar, one of the strip protrusions Xin 12 is located at the mesial position of the axial ridge of the buccal surface of the corresponding molar, and the other strip protrusion Xin 12 is located at the distal position of the axial ridge of the palatal surface of the corresponding molar, one group of linear protrusion arrays is located at the buccal end position of the corresponding molar, and the other group of linear protrusion arrays is located at the proximal position of the tooth neck of the palatal surface of the corresponding molar, the linear protrusion arrays act on the teeth respectively to jointly realize the lingual rotation control of the tooth crown, and at the same time, the strip protrusions Xin 12 act on the teeth respectively to jointly realize the mesial tilting during the mesial movement of the teeth.

[0103] Each group of linear protrusion arrays is composed of 4 cylindrical dot-shaped protrusions 11, the linear orientation is mainly perpendicular to the long axis of the tooth, and can be appropriately adjusted according to the buccal end of the corresponding tooth and the gingival margin of the palatal surface. The outer diameter of the cylindrical dot-shaped protrusions 11 is 0.5 mm, the height is 0.25 mm, and the spacing between adjacent cylindrical dot-shaped protrusions 11 is 2.0 mm.

[0104] The strip-shaped protrusion Xin 12 is parallel to the long axis of the tooth, and is in the shape of a linear protrusion formed by connecting a plurality of continuous cylindrical point-shaped protrusions. The strip-shaped protrusion Xin 12 has a length of 2 mm, a width of 0.8 mm, and a height of 0.3 mm.

[0105] Example 8

[0106] like Figure 8 , 9 As shown, the present embodiment is an invisible orthodontic appliance that efficiently realizes three-dimensional rotation control of teeth, the invisible orthodontic appliance mainly comprises a brace structure for covering teeth, the brace structure comprises a tooth brace structure corresponding to a single tooth, three cylindrical dot-shaped protrusions are arranged on the tooth brace structure corresponding to the tooth surface area of ​​the mesial surface, labial surface and lingual surface of the canine, one cylindrical dot-shaped protrusion is located on the mesial ridge of the mesial surface of the canine, one cylindrical dot-shaped protrusion is located on the distal mesial neck of the axial ridge of the labial surface of the canine, and one cylindrical dot-shaped protrusion is located on the distal mesial neck of the axial ridge of the lingual surface of the canine, and the mesial tilted canine is corrected together by the three cylindrical dot-shaped protrusions acting on the teeth respectively;

[0107] The outer diameter of the cylindrical dot-shaped protrusion is 2.0 mm and the height is 0.5 mm;

[0108] Three cylindrical dot-shaped protrusions are arranged on the tooth braces structure, and the implementation method is that during the three-dimensional digital model making stage of the invisible braces, a plurality of cylindrical dot-shaped protrusion models 13 are arranged on the three-dimensional digital model 14 of the canine, and they are used as the braces dental mold to make a three-dimensional digital model of the invisible braces, and the invisible braces are prepared using the three-dimensional digital model of the invisible braces.

[0109] It should be noted that the cylindrical dot-shaped protrusions located on the labial and lingual surfaces of the canines are due to the fact that the distal surface is adjacent to the first premolar, making it difficult for the braces structure to apply direct force.

[0110] Example 9

[0111] Example 9 is based on the implementation scheme of Example 8, in which circular gasket attachments are bonded to the teeth at the locations of the cylindrical dot-shaped protrusions corresponding to the labial and lingual surfaces of the canines, so that the cylindrical dot-shaped protrusions directly act on the circular gasket attachments, thereby further increasing the force of the cylindrical dot-shaped protrusions on the teeth.

[0112] The circular gasket attachment is bonded to the tooth surface using a light-curing resin, and the outer diameter of the cylindrical dot-shaped protrusion is 0.5 mm and the thickness is 0.25 mm.

[0113] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. An invisible orthodontic appliance for realizing three-dimensional rotation of teeth, characterized in that The invisible braces mainly include a brace structure for covering teeth, the brace structure includes a tooth brace structure corresponding to a single tooth, a plurality of protrusions are arranged on the tooth brace structure corresponding to at least one tooth surface area of ​​the labial / buccal surface, the lingual / palatal surface and the mesiodistal surface of the tooth, and the three-dimensional rotation control of the tooth can be achieved through the forces acting on the teeth by the plurality of protrusions respectively, or the three-dimensional rotation control of the tooth can be achieved through the forces acting on the teeth by the plurality of protrusions respectively and the forces acting on the teeth by the tooth brace structure; The dental braces structure is provided with a plurality of protrusions, which include dot-shaped protrusions and / or strip-shaped protrusions. The shape of the dot-shaped protrusions includes any one of a cylinder, a semi-cylinder, a cone, a truncated cone, a hemisphere, a prism, a semi-prism, and a pyramid. The outer diameter of the dot-shaped protrusions is 0.5-2.0 mm, and the height is 0.2-1.0 mm. The shape of the strip-shaped protrusions is a long strip or linear protrusion formed by connecting a plurality of continuous dot-shaped protrusions. The length of the strip-shaped protrusions is not less than 2 mm, the width is 0.5-1.5 mm, and the height is 0.2-1.0 mm. The three-dimensional rotation control of the teeth can be achieved by the forces exerted on the teeth by the multiple protrusions respectively: A plurality of protrusions are arranged on the tooth brace structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface, and the protrusions are respectively located at the mesial / distal position of the axial ridge of the corresponding tooth lip / buccal surface and the tongue / palatal surface, or at the mesial / distal position of the mesial / distal midline angle of the lip / buccal surface and the tongue / palatal surface, and the three-dimensional rotation control of the tooth is jointly achieved through the forces exerted on the teeth by the plurality of protrusions respectively; or, A plurality of protrusions are arranged on the tooth brace structure corresponding to the tooth surface areas of the lip / buccal surface and the tongue / palatal surface, and the protrusions are respectively located at the incisal / incisal end positions and the near tooth neck positions of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, and the three-dimensional rotation control of the teeth is jointly achieved through the forces exerted on the teeth by the plurality of protrusions respectively; or, When the mesiodistal surface of the tooth contacts with the tooth braces structure, a plurality of protrusions are provided on the tooth braces structure at the tooth surface area corresponding to the mesiodistal surface of the tooth, and the protrusions are respectively located at the contact area between the mesiodistal surface of the corresponding tooth and the tooth braces structure, and the three-dimensional rotation control of the tooth is jointly realized by the forces exerted on the teeth by the plurality of protrusions respectively.

2. The invisible brace appliance according to claim 1, characterized in that: The dental braces structure is provided with a plurality of protrusions, which can be realized by protrusions formed by depressions on the dental braces structure, or by the dental braces structure being integrally formed to include the protrusions or fixedly connected to the protrusions.

3. The invisible brace appliance according to claim 1, characterized in that: The tooth brace structure is provided with a plurality of protrusions, which are implemented by providing a plurality of protrusions on the three-dimensional digital tooth model corresponding to the invisible brace appliance during the preparation stage of the three-dimensional digital tooth model, and then preparing the invisible brace appliance according to the model; Or, Arranging a plurality of protrusions on the three-dimensional digital model of the invisible brace appliance, and preparing the invisible brace appliance by 3D printing; Or, During the forming stage of preparing the invisible braces, further processing is performed to form protrusions through local deformation or local fixed connection of protrusions to prepare the invisible braces.

4. The invisible brace appliance according to claim 1, characterized in that: A plurality of protrusions are arranged on the dental brace structure corresponding to at least one of the tooth surface areas of the lip / buccal surface, the lingual / palatal surface and the mesiodistal surface, and when there are a plurality of protrusions corresponding to the same tooth surface area, the plurality of protrusions are arranged to form a linear protrusion array.

5. The invisible brace appliance according to claim 1, characterized in that: The multiple protrusions are linear protrusion arrays, and the linear protrusion arrays are composed of multiple protrusions arranged in an array. The linear protrusion arrays are respectively arranged on the tooth brace structure corresponding to the tooth surface areas of the lip / buccal surface and the tongue / palatal surface of the teeth, and the linear protrusion arrays are respectively located at the incisal / incisal end positions and the proximal tooth neck positions of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth. The linear protrusion arrays are perpendicular to the long axis of the teeth, and the three-dimensional rotation control of the teeth is jointly achieved by the forces acting on the teeth by the multiple linear protrusion arrays respectively; or, The multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and the linear protrusion array is composed of multiple protrusions arranged in an arrangement, and the linear protrusion array and the strip-shaped protrusions are arranged on the tooth brace structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface of the tooth, and the linear protrusion array is located at the position of the tooth neck near the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion is located at the position of the incisal end of the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion and the linear protrusion array are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly realized by the linear protrusion array and the strip-shaped protrusion acting on the tooth respectively; or, The multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and the linear protrusion array is composed of multiple protrusions arranged in an arrangement, and the linear protrusion array and the strip-shaped protrusions are arranged on the tooth brace structure corresponding to the tooth surface area of ​​the lip / buccal surface and the tongue / palatal surface of the tooth, and the linear protrusion array is located at the incisal / incisal end position of the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion is located at the tooth neck position of the lip / buccal surface and the tongue / palatal surface of the corresponding tooth, and the strip-shaped protrusion and the linear protrusion array are perpendicular to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly realized by the linear protrusion array and the strip-shaped protrusion acting on the tooth respectively; or, The multiple protrusions are strip-shaped protrusions, and the strip-shaped protrusions are respectively located at the mesial / distal positions of the axial ridges of the corresponding tooth labial / buccal surfaces and lingual / palatal surfaces, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved through the forces exerted on the teeth by the multiple strip-shaped protrusions respectively; or, The multiple protrusions are strip-shaped protrusions, and the strip-shaped protrusions are respectively located at the incisal / incisal ends of the corresponding tooth labial / buccal surfaces and lingual / palatal surfaces and at the position near the tooth neck, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the tooth is jointly achieved through the forces exerted on the teeth by the multiple strip-shaped protrusions respectively; or, The multiple protrusions are linear protrusion arrays and strip-shaped protrusions, and the linear protrusion array is composed of multiple protrusions arranged in an arrangement. The linear protrusion array and the strip-shaped protrusions are arranged on the tooth braces structure of the tooth surface area corresponding to the lip / buccal surface and the tongue / palatal surface of the teeth, and the strip-shaped protrusions are respectively located at the mesial / distal position of the axial ridge of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, or at the mesial / distal position of the mesial / distal line angle of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, and the linear protrusion arrays are respectively located at the incisal / incisal end positions and near the tooth neck positions of the lip / buccal surface and the tongue / palatal surface of the corresponding teeth, the linear protrusion array is perpendicular to the long axis of the tooth, and the strip-shaped protrusions are parallel to the long axis of the tooth, and the three-dimensional rotation control of the teeth is jointly achieved by the forces exerted on the teeth by the linear protrusion array and the strip-shaped protrusions respectively.

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