阅读说明：本技术 一种附件 (Accessory ) 是由 李洪文 马超 姚西 于 2020-08-25 设计创作，主要内容包括：本发明公开了一种附件,属于牙齿正畸技术领域。所述附件用于粘接在牙齿的表面,且与安装于牙齿上的透明矫治装置相配合,透明矫治装置用于容纳附件并向附件施加作用力,附件包括连接面和四个凹陷部,其中,连接面设置在附件的一端,连接面粘接在牙齿上；四个凹陷部间隔设置在附件的周面上,作用力分解在凹陷部上,并通过凹陷部上的分力作用于牙齿上,各个凹陷部能使牙齿在三维方向上移动。本发明的附件,通过四个凹陷部分解透明矫治装置作用于附件的作用力,凹陷部能使牙齿在三维方向上移动,提高了对不同畸形牙齿的适用性,并提高了矫正效果；同时凹陷部将作用力的分力作用于牙齿,降低了力偶,减少牙齿倾斜移动,进一步提高了矫正效果。(The invention discloses an accessory, and belongs to the technical field of tooth orthodontics. The accessory is used for being adhered to the surface of a tooth and matched with the transparent correction device arranged on the tooth, the transparent correction device is used for accommodating the accessory and applying acting force to the accessory, the accessory comprises a connecting surface and four concave parts, wherein the connecting surface is arranged at one end of the accessory, and the connecting surface is adhered to the tooth; the four concave parts are arranged on the peripheral surface of the accessory at intervals, acting force is decomposed on the concave parts, and is acted on the teeth through component force on the concave parts, and each concave part can enable the teeth to move in the three-dimensional direction. According to the accessory, acting forces of the transparent correcting device acting on the accessory are resolved through the four concave parts, so that teeth can move in the three-dimensional direction through the concave parts, the applicability to different deformed teeth is improved, and the correcting effect is improved; meanwhile, the concave part acts the component force of the acting force on the teeth, so that the couple is reduced, the inclined movement of the teeth is reduced, and the correction effect is further improved.)

1. An attachment for adhering to the surface of a tooth (100) and cooperating with a transparent orthosis mounted on said tooth (100) for receiving the attachment (1) and applying a force to the attachment (1), said attachment (1) comprising:

a connection surface (11) arranged at one end of the attachment (1), the connection surface (11) being bonded to the tooth (100);

four recesses (12) provided at intervals on the peripheral surface of the attachment (1), the acting force being resolved on the recesses (12) and acting on the teeth (100) by a component force on the recesses (12), each of the recesses (12) being capable of moving the teeth (100) in three dimensions.

2. An accessory according to claim 1, characterized in that the recesses (12) are symmetrically arranged on the circumference of the accessory (1).

3. The attachment according to claim 2, wherein the attachment (1) comprises a spacer (13), four recesses (12) are spaced apart by the spacer (13), and the spacer (13) is in the shape of a cross.

4. An attachment according to any of claims 1-3, wherein the attachment has a height H, wherein H is 0.5mm ≦ H ≦ 10 mm.

5. An attachment according to any of claims 1-3, wherein the recess (12) is a cambered surface.

6. An attachment according to any of claims 1-3, characterized in that the attachment (1) has a square connecting surface and a side length L, wherein L is 1mm ≦ L ≦ 8 mm.

7. An attachment according to claim 6, wherein the recess has a recess depth A at the end face of the attachment remote from the connection face, and wherein (1/10) L is ≦ A ≦ 1/2L.

8. An attachment according to any of claims 1-3, characterized in that the attachment surface (11) of the attachment (1) is circular and the radius of the circle is R, wherein R is 0.5mm ≦ 4 mm.

9. The attachment of any one of claims 1 to 3, wherein the transparent appliance comprises a first housing cavity for receiving a tooth (100) and a second housing cavity formed in the first housing cavity, the attachment (1) being disposed in the second housing cavity, the first housing cavity communicating with the second housing cavity, the second housing cavity cooperating with the attachment (1).

10. An attachment according to any of claims 1-3, wherein said attachment surface (11) is adapted to the surface of said tooth (100) such that said attachment surface (11) is adapted to conform to said tooth (100).

Technical Field

The invention relates to the technical field of tooth orthodontics, in particular to an accessory.

Background

In the invisible orthodontic process, accessories are generally needed to assist tooth movement. In the prior art, the following three accessories are generally adopted:

as shown in fig. 1, the first attachment 200 is a rectangular attachment, and when the tooth 100 needs to move horizontally, the rectangular attachment can apply a horizontal force, but since the force application point is far from the impedance center, a couple effect is generated on the tooth 100, and the rectangular attachment has no couple control, so that the tooth 100 can move obliquely and cannot move horizontally during the horizontal movement.

As shown in fig. 2, the second attachment 300 is a double-semicircular root control attachment, when the tooth 100 moves horizontally, the double-semicircular root control attachment exerts an acting force on both sides thereof, the double-semicircular root control attachment generates two opposite couples of forces on the tooth 100, the translation effect is good, the alignment of the tooth 100 is good, and the root control of the tooth 100 is good; however, when the teeth 100 need to be corrected by twisting, pressing down or stretching, the attachment does not have a good force application surface, so that the handling performance of the teeth 100 is poor and the correction effect is poor.

As shown in fig. 3, the third type of fitting 400 is a twisting fitting, which is advantageous for twisting the tooth 100, but when the tooth 100 needs to be twisted, depressed or stretched, the twisting fitting has no good force application surface, and thus the gripping ability of the tooth 100 is poor and the straightening effect is poor.

When the three accessories are used for correction, the accessories mainly move in a single direction for the tooth 100, however, the malocclusion of the tooth 100 generally moves in a three-dimensional direction, and if multi-directional correction movement exists, the accessory control is very difficult and the correction effect is poor.

Disclosure of Invention

The invention aims to provide an attachment for improving the orthodontic effect on different malformed teeth.

In order to achieve the purpose, the invention adopts the following technical scheme:

an attachment for adhering to a surface of a tooth and cooperating with a transparent appliance mounted to the tooth for receiving the attachment and applying a force to the attachment, the attachment comprising:

the connecting surface is arranged at one end of the accessory and is adhered to the tooth;

and four concave parts which are arranged on the peripheral surface of the accessory at intervals, wherein the acting force is decomposed on the concave parts, and the acting force acts on the teeth through the component force on the concave parts, and each concave part can enable the teeth to move in the three-dimensional direction.

Optionally, the recesses are symmetrically disposed on the peripheral surface of the attachment.

Optionally, the accessory comprises a spacer, the four recesses are spaced apart by the spacer, and the spacer is in a cross shape.

Optionally, the height of the accessory is H, wherein H is more than or equal to 0.5mm and less than or equal to 10 mm.

Optionally, the recess is a curved surface.

Optionally, the connecting surface of the accessory is square, and the side length of the square is L, wherein L is greater than or equal to 1mm and less than or equal to 8 mm.

Optionally, the end surface of the end of the accessory far away from the connecting surface has a recess depth A, wherein (1/10) L is less than or equal to A less than or equal to (1/2) L.

Optionally, the connecting surface of the accessory is circular, and the radius of the circle is R, wherein R is more than or equal to 0.5mm and less than or equal to 4 mm.

Optionally, the transparent orthodontic device comprises a first accommodating cavity for accommodating teeth and a second accommodating cavity formed in the first accommodating cavity, the accessory is arranged in the second accommodating cavity, the first accommodating cavity is communicated with the second accommodating cavity, and the second accommodating cavity is matched with the accessory.

Optionally, the connecting surface is adapted to the surface of the tooth such that the connecting surface conforms to the tooth.

The invention has the beneficial effects that:

according to the accessory provided by the invention, the transparent correcting device is designed according to requirements, the transparent correcting device can provide acting force for the accessory, and the accessory is adhered to teeth, so that the accessory can apply acting force to the teeth; the concave part is used as a stress surface of the acting force, and the acting force is decomposed through the concave part to obtain a component force on the concave part; because each concave part can provide force in a three-dimensional direction, the accessory can move the teeth three-dimensionally, the three-dimensional movement of the teeth can be effectively controlled, and the correction effect is improved; the accessory is provided with four concave parts, and the installation direction of the accessory and the force application direction matched with the transparent correction device are selected according to different tooth conditions so as to provide different correction schemes and improve the tooth correction applicability under various conditions; due to the structural characteristics of the accessory, the accessory is convenient for a doctor to use, and the laziness of the doctor in treatment experience is reduced; in addition, for a complex correction scheme, the attachment can enable the teeth to move in the three-dimensional direction simultaneously, so that the moving steps are reduced, the using number of the attachment is also reduced, the correction period is shortened, and the cost is reduced.

When the accessory is acted by force, the four concave parts are spaced on the peripheral surface of the accessory, the acting force in any direction can be decomposed into component forces on the plurality of concave parts on the accessory, and the component forces on the concave parts act on teeth by decomposing the acting force on the four concave parts, so that a couple generated by the acting force is reduced, the inclined movement of the teeth can be effectively reduced, and the accuracy of the multi-directional movement control of the teeth is improved; for example, when the teeth move horizontally, the problem of tooth torsion caused by the fact that the force application point is far away from the impedance center is reduced, and the method is effectively used for correcting tooth movement positive axis, simultaneous tooth depression, oblique movement and the like; meanwhile, when the teeth move for a long distance, the rotating force far away from the moving side force can be applied to the teeth so as to generate a counter couple and avoid the teeth from twisting.

Drawings

FIG. 1 is a schematic view of a first attachment provided in the prior art for attachment to a tooth;

FIG. 2 is a schematic view of a second attachment provided in the prior art for attachment to a tooth;

FIG. 3 is a schematic view of a third prior art attachment mounted on a tooth;

FIG. 4 is a schematic view of an attachment according to an embodiment of the present invention mounted to a tooth in a first manner;

FIG. 5 is a schematic view of an attachment according to an embodiment of the present invention mounted to a tooth in a second manner;

FIG. 6 is a schematic diagram of an attachment with a square attachment surface according to an embodiment of the present invention;

FIG. 7 is a top view of FIG. 6;

FIG. 8 is a bottom view of FIG. 6;

FIG. 9 is a schematic view of the attachment of a circular attachment surface provided by an embodiment of the present invention;

fig. 10 is a front view of fig. 6.

In the figure:

100-teeth; 200-a first type of accessory; 300-a second type of accessory; 400-third attachment;

1-an accessory; 11-connecting surface; 12-a recess; 121-upper stress surface; 122-lower force-bearing surface; 123-left stress surface; 124-right stress surface; 13-spacer section.

Detailed Description

In order to make the technical problems solved, technical solutions adopted and technical effects achieved by the present invention clearer, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, removably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The growth of the tooth 100 may be complex and the corresponding treatment may include: one or more of depression, elongation, mesial, distal movement and torsion, when combined correction occurs, three-dimensional movement exists, the transparent correction device can exert acting force on the teeth 100 through the accessories so as to enable the teeth 100 to move according to a preset direction, in the prior art, the accessories can only be used for single-direction adjustment, and the control acting force in the three-dimensional direction is poor.

To solve the above problems, the present embodiment provides an attachment for adhering to the surface of a tooth 100 and cooperating with a transparent orthodontic device mounted on the tooth 100 for receiving the attachment 1 and applying force to the attachment 1. The attachment 1 comprises a connection surface 11 and four recesses 12, in particular, as shown in fig. 4-8, the connection surface 11 is arranged at one end of the attachment 1, and the connection surface 11 is adhered to the tooth 100; four dented portions 12 are provided at intervals on the peripheral surface of the attachment 1, and the respective dented portions 12 enable the tooth 100 to move in three dimensions by the force divided on the dented portions 12 and acting on the tooth 100 by the component force on the dented portions 12.

Designing a transparent correcting device according to requirements, wherein the transparent correcting device can provide acting force for the attachment 1, and the attachment 1 is adhered to the tooth 100, so that the attachment 1 can apply acting force to the tooth 100; the concave part 12 is formed by a concave part arranged inwards in the circumferential direction of the accessory, the concave part 12 is a stress surface of acting force due to the self structural characteristics of the accessory, the acting force is decomposed through the concave part 12, and component force on the concave part 12 is obtained, so that the accessory is simple in structure; because each concave part 12 can provide force in a three-dimensional direction, the attachment 1 can move the teeth 100 in three dimensions, the three-dimensional movement of the teeth 100 can be effectively controlled, and the correction effect is improved; the attachment 1 is provided with four concave parts 12, and the installation direction of the attachment 1 and the force application direction matched with the transparent correction device are selected according to the conditions of different teeth 100 so as to provide different correction schemes and improve the correction applicability of the teeth 100 under various conditions; due to the structural characteristics of the accessory 1, better acting force can be provided for the teeth 100, the use by a doctor is facilitated, and the dependence on the treatment experience of the doctor is reduced; in addition, for a complex correction scheme, the attachment 1 can simultaneously move the teeth 100 in three-dimensional directions, so that the moving steps are reduced, the using number of the attachments is also reduced, the correction period is shortened, and the cost is reduced.

When the accessory 1 is acted with force, the four concave parts 12 are spaced on the peripheral surface of the accessory 1, the acting force in any direction can be decomposed into component forces on the concave parts 12 on the accessory 1, and the component forces on the concave parts 12 act on the teeth 100 by decomposing the acting force on the four concave parts 12, so that the couple generated by the acting force is reduced, the inclined movement of the teeth 100 can be effectively reduced, and the accuracy of the multi-direction movement control of the teeth 100 is improved; for example, when the tooth 100 moves horizontally, the problem of torsion of the tooth 100 caused by the force application point being far away from the resistance center is reduced, and the method is effectively used for correction such as the movement of the positive axis of the tooth 100, the simultaneous depression and the inclination movement of the tooth 100 and the like; meanwhile, when the tooth 100 moves for a long distance, a rotational force away from the moving side force can be applied to the tooth 100 to generate a reaction couple, thereby preventing the tooth 100 from twisting.

Different treatment regimens are selected for different tooth 100 conditions to enhance the effectiveness of the tooth 100 movement. For convenience of description, in the present embodiment, taking the upper teeth as an example, the four concave portions 12 are an upper force-bearing surface 121, a lower force-bearing surface 122, a left force-bearing surface 123 and a right force-bearing surface 124. A first arrangement, as shown in fig. 4, may be used when depressing or elongating the tooth 100, and moving medially or distally, and a second arrangement, as shown in fig. 5, may be used when moving the tooth 100 horizontally or torqued, as follows.

Specifically, as shown in fig. 4, when the teeth 100 are depressed and moved, the transparent appliance applies a force to the attachment 1 in a vertically upward direction, the lower force-bearing surface 122 acts as a force-bearing surface and is upwardly applied, and the attachment 1 acts on the teeth 100 to move the teeth upward. Specifically, when the teeth 100 are depressed and moved, the distal or proximal movement is performed simultaneously, and the acting force is rightward, but in other embodiments, the direction may be an upward direction, and the lower force-bearing surface 122 and the left force-bearing surface 123 serve as force-bearing surfaces, and the acting force is decomposed into component forces acting on the teeth 100 respectively, so that the teeth 100 move upward and leftward simultaneously; the left force-bearing surface 123 is subjected to the component force of the acting force, so that the couple value of the tooth 100 generated because the force-applying point is far away from the resistance center is reduced, the acting force causing the torsion of the tooth 100 is reduced, and the correction effect is improved.

Similarly, specifically, as shown in fig. 4, when the tooth 100 is subjected to the stretching movement and the force is in the vertically downward direction, the upper force-bearing surface 121 is subjected to the downward force, and the attachment 1 acts on the tooth 100 to move it upward. Specifically, when the tooth 100 is extended, the distal or proximal movement is performed simultaneously, and the acting force is inclined to the right, but in other embodiments, the direction may be inclined to the left and the lower, the upper force-bearing surface 121 and the left force-bearing surface 123 serve as force-bearing surfaces, and the acting force is decomposed into component forces acting on the tooth 100 respectively, so that the tooth 100 is moved downward and leftward simultaneously.

When only horizontal movement and twisting are possible, a second mounting means can be used to apply forces in opposite directions to the attachment through the transparent orthosis. Specifically, as shown in fig. 5, when only moving horizontally, the transparent appliance applies forces in both left and right directions to the attachment 1, the four recesses 12 of the attachment 1 are all force-bearing surfaces, and simultaneously the four recesses 12 can generate force components to act on the teeth 100 to generate force pairs and reaction force pairs acting on the teeth 100, so as to prevent the teeth 100 from tilting and improve the orthodontic effect.

As shown in fig. 6 and 7, the concave portions 12 are symmetrically provided on the circumferential surface of the attachment 1 to facilitate the processing and mounting of the attachment 1, and improve the accuracy of the action on the teeth 100, thereby improving the orthodontic effect. Further optionally, the accessory 1 includes a spacer 13, the four recesses 12 are spaced by the spacer 13, and the spacer 13 is in a cross shape, so that the four recesses 12 are in central symmetry and axial symmetry, further improving the orthodontic effect on the tooth 100, and the spacer 13 has a stable structure, so as to improve the structural strength of the accessory 1; specifically, as shown in fig. 7 to 9, the connection surface 11 of the attachment 1 is square or circular to facilitate the processing of the recess 12; of course, the attachment surface 11 of the attachment may have other shapes, and is not limited herein. Referring to fig. 8, in the present embodiment, the connecting surface 11 of the attachment 1 is square, which is convenient for processing and facilitates the removal and wearing of the transparent orthodontic device.

Since the side length of the side of the tooth 100 close to the labial side is generally 7mm-8mm, and the shape is close to a square, in order to make the attachment fit on the surface of the tooth 100, further alternatively, referring to fig. 7 and 8, when the connecting surface of the attachment 1 is a square, the side length of the square is L, wherein L is greater than or equal to 1mm and less than or equal to 8 mm. Referring to fig. 9, the connecting surface 11 of the attachment 1 is circular, and the radius of the circle is R, wherein R is greater than or equal to 0.5mm and less than or equal to 4mm, so as to avoid the influence on the use effect and the wearing comfort caused by the size of the connecting surface 11 being greater than the size of the tooth surface.

Further alternatively, referring to fig. 7, when the connection surface 11 is square, the recess depth of the recess is a on the end surface of the attachment away from the end of the connection surface, wherein (1/10) L is less than or equal to a less than or equal to (1/2) L, and the structural strength is better, and the acting force can be properly resolved into three dimensions. Preferably, a ═ (1/5) L.

Alternatively, when the connecting surface 11 is in other shapes, the range of the depression depth a may be that a is greater than zero and smaller than the maximum depression depth, for example, when the connecting surface 11 is circular, the maximum depression depth is the radius size, and when the connecting surface 11 is rectangular, the maximum depression depth is half of the side length of the rectangle opposite to the depression 12.

Considering the decomposition condition of the acting force of the concave part 12 and the comfort degree of the attachment when the attachment is mounted on the surface of the tooth, optionally, referring to fig. 10, the height of the attachment is H, wherein H is greater than or equal to 0.5mm and less than or equal to 10mm, so as to avoid the influence of too high height of the attachment on the wearing comfort degree and the influence of too low height of the attachment on the acting force applied to the tooth 100. Preferably, H-2.5 mm.

Optionally, the adjacent contact surfaces of the concave part 12 and the spacing part 13 are in smooth transition so as to avoid stress concentration, improve the structural strength of the accessory 1 and the transparent correction device, and avoid stress concentration; the accessory 1 can be formed by 3D printing technology or can be processed by injection molding, when smoothly transitioned, to facilitate injection molding.

A doctor designs a correction scheme and designs a transparent correction device according to the condition of the tooth 100, and after the tooth 100 wears the transparent correction device, the transparent correction device applies acting force to the accessory 1 in the accommodating cavity to enable the tooth 100 to move from the current state to the target state. Optionally, the transparent orthodontic device comprises a first accommodating cavity for accommodating the tooth 100 so as to be mounted on the tooth 100, a second accommodating cavity is formed in the first accommodating cavity, the attachment 1 is arranged in the second accommodating cavity so as to fix the attachment 1 and apply an acting force to the attachment 1, and the first accommodating cavity is communicated with the second accommodating cavity to enable the connecting surface 11 of the attachment 1 to be adhered to the tooth 100 so as to apply an acting force to the tooth 100 by the attachment 1.

Optionally, the second accommodating cavity is matched with the accessory 1, and particularly, the shape of the second accommodating cavity and the shape of the accessory 1 can be matched, so that the second accommodating cavity is attached to the accessory 1, and the fixing and force application of the accessory 1 by the second accommodating cavity are improved. Optionally, the connecting surface 11 is matched with the mounting surface of the tooth 100, so that the connecting surface 11 is attached to the tooth 100, the acting force of the connecting surface 11 on the tooth 100 is improved, and the moving effect is improved; before correction, the shape of the connecting surface 11 is calculated by scanning the tooth 100 and a computer, and then the connecting surface 11 is molded, so that the attaching degree of the connecting surface 11 and the tooth 100 is improved; optionally, the tooth 100 model is scanned, and the size and angle of the attachment 1 is calculated by the computer to be suitable for different teeth 100; and the transparent appliance is designed so that after the tooth 100 is worn with the transparent appliance and the attachment 1, the tooth 100 can move from the current tooth 100 state to the target tooth 100 state in accordance with the desired movement.

Alternatively, the concave part 12 is obliquely arranged towards one end far away from the connecting surface 11 so as to generate three-dimensional force and be installed in the second accommodating cavity; further optionally, the concave part 12 is a cambered surface, which is also convenient for generating three-dimensional force, and is further convenient for being installed in the second accommodating cavity; preferably, the recess 12 is spherical.

Alternatively, the attachment 1 is made of a resin material and can be used for attachment to any tooth 100 in the oral cavity, further improving the applicability of the attachment 1.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.