Accessory combination and shell-shaped dental instrument with same

Abstract

The invention discloses an accessory combination and a shell-shaped dental instrument with the same, the accessory combination is used for being mutually fixed with an appliance, the accessory combination comprises an accessory body and a gasket, the accessory body comprises a connecting part, a first end part and a second end part, the first end part and the second end part are positioned on two opposite sides of the connecting part, and the gasket is mutually matched with the second end part; a gap is formed between the gasket and the first end part, and the gap and the appliance are mutually fixed. The accessory body and the gasket are matched to clamp the appliance to realize mutual fixation of the accessory combination and the appliance, so that the connection strength and the connection reliability between the accessory combination and the appliance can be enhanced, the falling risk of the accessory combination is further reduced, and even if the accessory combination loses efficacy due to bearing an overlarge load under an extreme condition, the accessory combination can be prevented from falling off. And the accessory combination cannot fall off from the appliance, so that the situation that the accessory combination is swallowed by the patient is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of dental correction, and in particular to an accessory assembly and a shell-shaped dental instrument having the same. Background Art

[0002] Shell-shaped dental appliances made of polymer materials are becoming more and more popular due to their advantages of beauty, convenience and ease of cleaning. Generally, orthodontic treatment using shell-shaped dental appliances requires a series of shell-shaped dental appliances, and the geometry of the cavity of each of these shell-shaped dental appliances that accommodates the teeth basically matches the tooth layout desired to be achieved in the corresponding correction step.

[0003] In many cases, it is difficult to ensure that a corrective force system of appropriate size and direction is applied to the teeth by relying solely on the shell-shaped dental device itself. For example, in order to achieve functions such as traction, guiding the mandible forward, and opening the bite, current shell-shaped dental devices include an appliance that accommodates the teeth and accessories combined with the appliance. However, the connection strength between the accessories and the appliance is limited. During clinical use, the risk of the accessories falling off is relatively high. Summary of the invention

[0004] The object of the present invention is to provide an accessory assembly and a shell-shaped dental instrument having the same, which can enhance the connection strength and connection reliability between the accessory assembly and the orthodontic appliance, thereby reducing the risk of the accessory assembly falling off.

[0005] To achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides an accessory combination for being fixed to a brace device, the accessory combination comprising an accessory body and a gasket, the accessory body comprising a connecting portion and a first end and a second end located on opposite sides of the connecting portion, the gasket and the second end cooperate with each other, and a gap is formed between the gasket and the first end, and the gap is fixed to the brace device.

[0006] As a further improvement of an embodiment of the present invention, the gasket includes a through hole, and the second end portion penetrates into the through hole and cooperates with the gasket.

[0007] As a further improvement of one embodiment of the present invention, the through hole is a circular hole, the second end is a cylinder, a cone or a prism protruding out of the connecting portion, and the maximum distance formed by two points on the lower bottom surface contour of the cylinder, cone or prism is greater than the diameter of the through hole in the initial state.

[0008] As a further improvement of one embodiment of the present invention, the gasket includes a hollow gasket body and a plurality of blocking parts connected to the inner edge of the gasket body and distributed at intervals, and side holes are formed between adjacent blocking parts. The side holes are located at the periphery of the through hole and connected to the through hole.

[0009] As a further improvement of one embodiment of the present invention, the gasket body and the blocking portion both extend horizontally, or the gasket body extends horizontally and the blocking portion is bent toward a side away from the first end, or the gasket body and the blocking portion are both bent toward a side away from the first end.

[0010] As a further improvement of one embodiment of the present invention, the accessory body also includes a limiting portion located on the outer surface of the connecting portion. When the accessory assembly is assembled to the orthodontic appliance, the limiting portion and the orthodontic appliance abut against each other to limit the rotation of the accessory body relative to the orthodontic appliance.

[0011] As a further improvement of an embodiment of the present invention, the limiting portion is located in the gap, the limiting portion includes a plane, or the limiting portion includes a plurality of barbs distributed at intervals along the circumference of the connecting portion.

[0012] As a further improvement of an embodiment of the present invention, the connecting portion is an integrated columnar structure, or the connecting portion includes a plurality of connecting columns arranged at intervals.

[0013] As a further improvement of one embodiment of the present invention, the first end portion protrudes out of the connecting portion in the circumferential direction of the connecting portion, and the structure formed by the second end portion cooperating with the gasket protrudes out of the connecting portion in the circumferential direction of the connecting portion.

[0014] As a further improvement of one embodiment of the present invention, the second end portion has a step surface protruding out of the connecting portion in the circumferential direction of the connecting portion, and the step surface carries the gasket, or the second end portion has an interface, and the gasket and the interface are mutually engaged.

[0015] As a further improvement of one embodiment of the present invention, the gasket has at least one first matching portion on one side close to the first end portion. When the accessory assembly is assembled to the orthodontic appliance, the first matching portion cooperates with the second matching portion on the orthodontic appliance to limit the rotation of the gasket relative to the orthodontic appliance.

[0016] As a further improvement of an embodiment of the present invention, the accessory assembly further includes a functional portion, and the functional portion is integrally formed with the first end portion, or the functional portion is detachably connected to the first end portion.

[0017] As a further improvement of one embodiment of the present invention, the functional part is located on the side of the first end away from the second end, and the functional part is a hook-shaped structure, a jaw pad structure, a tubular structure, a groove structure, a ring structure, a tongue thorn structure, a tongue position guide structure, an indicator, a detector or a releaser.

[0018] As a further improvement of one embodiment of the present invention, the functional part is a hook-shaped structure, the first end includes a mounting surface away from the second end, the hook-shaped structure is located on the mounting surface, and a gap is formed between the hook-shaped structure and the mounting surface for the traction member to enter and exit.

[0019] As a further improvement of one embodiment of the present invention, the accessory combination includes two accessory bodies and two gaskets, the two first ends are connected to each other, the two second ends are separated from each other, and the two gaskets respectively cooperate with the two second ends.

[0020] As a further improvement of one embodiment of the present invention, the first end, the connecting portion and the second end are connected to form an integral structure independent of the gasket, the maximum distance formed by two points on the outer contour of the end surface of the first end is greater than the maximum distance formed by two points on the outer contour of the end surface of the second end, and the maximum distance formed by two points on the outer contour of the end surface of the gasket is greater than the maximum distance formed by two points on the outer contour of the end surface of the second end.

[0021] To achieve one of the above-mentioned purposes of the invention, one embodiment of the present invention provides a shell-shaped dental device, including an orthodontic appliance and the accessory combination as described above, the orthodontic appliance including a cavity for accommodating teeth, an inner surface close to the cavity and an outer surface away from the cavity, the orthodontic appliance also includes a mounting hole passing through the inner surface and the outer surface, when the accessory combination is assembled to the orthodontic appliance, the accessory body passes through the mounting hole and the gap clamps the peripheral area of ​​the mounting hole.

[0022] As a further improvement of an embodiment of the present invention, the gasket is completely located on one side of the inner surface.

[0023] As a further improvement of one embodiment of the present invention, the corrector also includes a mounting platform protruding toward a side away from the cavity, the mounting platform includes a first mounting surface located on the outer surface and a second mounting surface located on the inner surface, and the mounting hole passes through the first mounting surface and the second mounting surface.

[0024] As a further improvement of one embodiment of the present invention, the second mounting surface is surrounded by a accommodating cavity connecting the mounting hole and the cavity, and when the accessory assembly is assembled to the corrector, the gasket and the second end are both located in the accommodating cavity, or at least a portion of the gasket and the second end extends out of the accommodating cavity.

[0025] As a further improvement of one embodiment of the present invention, the first mounting surface includes a first plane away from the cavity, the first plane is used to support the first end, and the second mounting surface includes a second plane close to the cavity, the second plane is used to support the gasket.

[0026] As a further improvement of one embodiment of the present invention, the first end includes a first mating surface arranged facing the first plane, the first mating surface is a plane and abuts against the first plane, or the first mating surface is provided with a friction structure abutting against the first plane.

[0027] As a further improvement of one embodiment of the present invention, the gasket includes a second mating surface facing the second plane, the second mating surface is a plane and abuts against the second plane, or the second mating surface is provided with a friction structure abutting against the second plane.

[0028] As a further improvement of an embodiment of the present invention, the inner contour of the mounting hole matches the outer contour of the connecting portion, and the inner contour of the mounting hole is circular or non-circular.

[0029] As a further improvement of an embodiment of the present invention, the mounting hole is arranged corresponding to the gap between adjacent teeth.

[0030] As a further improvement of an embodiment of the present invention, the shell-shaped dental appliance further includes a colloid located inside the accessory assembly or between the accessory assembly and the appliance.

[0031] Compared with the prior art, the beneficial effects of the present invention are as follows: one embodiment of the present invention achieves mutual fixation of the accessory assembly and the orthodontic appliance by clamping the orthodontic appliance through the cooperation of the accessory body and the gasket, which can enhance the connection strength and connection reliability between the accessory assembly and the orthodontic appliance, thereby reducing the risk of the accessory assembly falling off. Even if the accessory assembly fails due to excessive load in extreme cases, the accessory assembly will not fall off the orthodontic appliance, thereby avoiding the situation where the accessory assembly is swallowed by the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 is an exploded schematic diagram of an accessory body according to an embodiment of the present invention;

[0033] Figure 2a to Figure 2g Schematic diagrams of various forms of gaskets according to an embodiment of the present invention;

[0034] Figure 3 is a schematic diagram of a connecting portion of an embodiment of the present invention;

[0035] Figure 4 is a cross-sectional view of a partial area of ​​a corrective appliance according to one embodiment of the present invention;

[0036] Figure 5 is a partial schematic diagram of a shell-shaped dental appliance according to an embodiment of the present invention;

[0037] Figure 6 yes Figure 5 A cross-sectional view of

[0038] Figure 7 is a schematic diagram of a mounting platform according to an embodiment of the present invention;

[0039] Figure 8 is a schematic diagram of a mounting platform with a racetrack-shaped mounting hole according to an embodiment of the present invention;

[0040] Fig. 9 is a schematic diagram of an accessory body having a planar connection portion according to an embodiment of the present invention;

[0041] Fig.10 and Fig.11 is a schematic diagram of an accessory body of a first specific embodiment of the present invention;

[0042] Fig.12 and Fig.13 is a schematic diagram of an accessory body according to a second specific embodiment of the present invention;

[0043] Fig.14 and Fig.15 is a schematic diagram of an accessory body according to a third specific embodiment of the present invention;

[0044] Fig.16 and Fig.17 is a schematic diagram of an accessory body according to a fourth specific embodiment of the present invention;

[0045] Fig.18 and Fig.19 is a schematic diagram of an accessory body of a fifth specific embodiment of the present invention;

[0046] Figure 20 to Figure 23 is a schematic diagram of an accessory body and an accessory assembly according to a sixth specific embodiment of the present invention;

[0047] Fig.24 and Fig.25 is a schematic diagram of an accessory body of a seventh specific embodiment of the present invention;

[0048] Figure 26 to Figure 29 is a schematic diagram of an accessory assembly according to an eighth specific embodiment of the present invention;

[0049] Figure 30 to Figure 34 is a schematic diagram of an accessory assembly according to a ninth specific embodiment of the present invention;

[0050] Figures 35 to 38 Schematic diagram of the accessory assembly of the tenth specific embodiment of the present invention. DETAILED DESCRIPTION

[0051] The present invention will be described in detail below in conjunction with the specific embodiments shown in the accompanying drawings. However, these embodiments do not limit the present invention, and any structural, methodological, or functional changes made by a person skilled in the art based on these embodiments are all within the scope of protection of the present invention.

[0052] Combination Figures 1 to 7 , illustrates an accessory assembly 100 and a shell-shaped dental instrument 200 having the accessory assembly 100 according to an embodiment of the present invention. The accessory assembly 100 is used to be fixed to the orthodontic appliance 201. When the accessory assembly 100 is assembled to the orthodontic appliance 201, the shell-shaped dental instrument 200 is formed.

[0053] In this embodiment, the accessory assembly 100 includes an accessory body 10 and a gasket 20. The accessory body 10 includes a connecting portion 11 and a first end 12 and a second end 13 located on opposite sides of the connecting portion 11. The gasket 20 and the second end 13 cooperate with each other, and a gap P is formed between the gasket 20 and the first end 12. The gap P is fixed to the corrector 201.

[0054] Here, "the gap P and the corrector 201 are fixed to each other" means that the gasket 20, the first end portion 12 and the corrector 201 are fixed to each other by the cooperation of the gap P and the corrector 201. The accessory body 10 and the gasket 20 are two independent structures. When the gasket 20 is cooperated with the second end portion 13, a gap P is formed between the gasket 20 and the first end portion 12. When the gap P is cooperated with the corrector 201, the accessory assembly 100 and the corrector 201 are fixed to each other.

[0055] The present embodiment achieves mutual fixation between the accessory assembly 100 and the orthodontic appliance 201 by clamping the orthodontic appliance 201 through the cooperation of the accessory body 10 and the gasket 20, which can enhance the connection strength and connection reliability between the accessory assembly 100 and the orthodontic appliance 201, thereby reducing the risk of the accessory assembly 100 falling off. Even if the accessory assembly 100 fails due to excessive load in extreme cases, the accessory assembly 100 will not fall off the orthodontic appliance 201, thereby avoiding the situation where the accessory assembly 100 is swallowed by the patient.

[0056] In the present embodiment, the first end portion 12 protrudes out of the connecting portion 11 in the circumferential direction of the connecting portion 11, and the structure formed by the second end portion 13 and the gasket 20 cooperates to protrude out of the connecting portion 11 in the circumferential direction of the connecting portion 11, that is, in the direction from the first end portion 12 to the second end portion 13, the longitudinal section of the accessory assembly 100 is roughly in the shape of an "I", so that a gap P for clamping the orthodontic appliance 201 can be formed between the gasket 20 and the first end portion 12.

[0057] Here, the thickness range of the first end 12 is 0.05mm-0.5mm, the length range of the connecting portion 11 is 0.4mm-1mm, the thickness range of the gasket 20 is 0.05mm-0.4mm, and the thickness range of the second end 13 is 0.05mm-0.4mm, so as to limit the height of the entire accessory assembly 100, but not limited to this.

[0058] In this embodiment, the second end portion 13 has a step surface 131 that protrudes out of the connecting portion 11 in the circumferential direction of the connecting portion 11, and the step surface 131 carries the gasket 20, or the second end portion 13 has an interface, and the gasket 20 and the interface are mutually engaged, so that the second end portion 13 and the gasket 20 are matched with each other.

[0059] In this embodiment, the gasket 20 includes a through hole 21 , and the second end portion 13 passes through the through hole 21 and cooperates with the gasket 20 . The design of the through hole 21 can simplify the cooperation process between the second end portion 13 and the gasket 20 .

[0060] Here, “the second end portion 13 penetrates the through hole 21 ” means that the second end portion 13 completely passes through the through hole 21 . At this time, the entire second end portion 13 is outside the through hole 21 , and the gasket 20 is located at the step surface 131 .

[0061] Alternatively, the second end portion 13 passes through the through hole 21 , and part or all of the second end portion 13 is inside the through hole 21 , for example, the gasket 20 cooperates with an interface at the periphery of the second end portion 13 .

[0062] When the second end portion 13 passes through the through hole 21 , the second end portion 13 and the gasket 20 are matched with each other, and at the same time, a gap P is formed between the gasket 20 and the first end portion 12 .

[0063] In this embodiment, continue to combine Figures 1 to 7 The through hole 21 on the gasket 20 is a circular hole, the second end portion 13 is a cylinder, a truncated cone or a pyramid protruding out of the connecting portion 11, and the maximum distance formed by two points on the lower bottom surface contour of the cylinder, truncated cone or pyramid is greater than the diameter of the through hole 21 in the initial state.

[0064] Among them, the distance range of the second end portion 13 protruding from the connecting portion 11 is 0.02mm-0.5mm, but is not limited to this. The lower bottom surface of the cylinder is the bottom surface of the cylinder, and the lower bottom surface of the truncated cone or the prism is the bottom surface of the truncated cone or the prism with a larger size. The "diameter of the through hole 21 in the initial state" refers to the diameter of the through hole 21 when not affected by external force.

[0065] Here, taking the example of the second end 13 completely passing through the through hole 21, when the second end 13 abuts against the through hole 21, due to the larger size of the second end 13, the through hole 21 will be deformed so that the second end 13 can pass through the through hole 21 smoothly, and then, the through hole 21 will reset to prevent the second end 13 from leaving the through hole 21.

[0066] In addition, when the second end 13 is a frustum or a prism, the lower base of the frustum or the prism is closer to the first end 12 than the upper base, so that a chamfered structure is formed on the outer surface of the second end 13, which can assist the second end 13 to pass through the through hole 21.

[0067] In this embodiment, the gasket 20 includes a hollow gasket body 22 and a plurality of blocking portions 23 connected to the inner edge of the gasket body 22 and distributed at intervals. Side holes 24 are formed between adjacent blocking portions 23. The side holes 24 are located at the periphery of the through hole 21 and connected to the through hole 21. In the radial direction of the through hole 21, the length range of the blocking portion 23 is 0.1 mm-0.8 mm.

[0068] That is to say, the blocking portions 23 and the side holes 24 are spaced apart from each other, and a plurality of blocking portions 23 and a plurality of side holes 24 are arranged to form an annular structure, and the annular structure is located between the through hole 21 and the gasket body 22 .

[0069] Here, when the second end 13 passes through the through hole 21, the multiple blocking parts 23 are squeezed by the second end 13 and deformed to increase the diameter of the auxiliary through hole 21. When the second end 13 completely passes through the through hole 21, the multiple blocking parts 23 rebound to limit the second end 13.

[0070] In this embodiment, if Figure 2a to Figure 2d As shown, the gasket body 22 and the blocking portion 23 both extend horizontally, that is, the entire gasket 20 is a flat sheet structure.

[0071] The plurality of blocking portions 23 (or the plurality of side holes 24 ) are evenly distributed at the inner edge of the gasket body 22 , and the number of the blocking portions 23 may be two, three, four or six, but is not limited thereto.

[0072] Or, if Figure 2e As shown, the two gaskets 20 can be connected as one body to adapt to the application scenario with two second ends 13 .

[0073] Or, if Figure 2f As shown, the gasket body 22 extends horizontally and the blocking portion 23 is bent toward the side away from the first end 12. At this time, when the accessory body 10 and the gasket 20 are assembled and the second end 13 is subjected to a force in the direction of the first end 12, the second end 13 drives the blocking portion 23 to deform so that the diameter of the through hole 21 is reduced, thereby improving the bonding strength between the gasket 20 and the accessory body 10.

[0074] Or, if Figure 2g As shown, the gasket body 22 and the blocking portion 23 are bent toward a side away from the first end portion 12, and the extension directions of the gasket body 22 and the blocking portion 23 are substantially the same, that is, the entire gasket 20 is substantially funnel-shaped, similar to Figure 2f As described above, when the accessory body 10 and the gasket 20 are assembled and the second end 13 is subjected to a force in the direction of the first end 12, the second end 13 causes the blocking portion 23 to deform so that the diameter of the through hole 21 is reduced, and can cause the gasket body 22 to deform so that the diameter of the through hole 21 is further reduced, thereby improving the bonding strength between the gasket 20 and the accessory body 10.

[0075] In this embodiment, the connection portion 11 is an integrated columnar structure, or the connection portion 11 includes a plurality of connection columns arranged at intervals.

[0076] Here, “the connection portion 11 includes a plurality of connection columns that are spaced apart” means that the connection portion 11 is a split structure, which facilitates the deformation of the connection portion 11 .

[0077] For details, see Figure 3 The connecting portion 11 includes a plurality of connecting columns 11 ′ connected to the first end portion 12 at intervals, and a step portion 13 ′ extending outward is formed on one side of the connecting column 11 ′ away from the first end portion 12 . The plurality of step portions 13 ′ cooperate to form the second end portion 13 .

[0078] It can be seen that since the multiple connecting columns 11' are arranged at intervals, when the second end 13 abuts the through hole 21, the connecting column 11' drives the corresponding step portion 13' to retract so that the second end 13 passes through the through hole 21, and then the connecting column 11' drives the corresponding step portion 13' to return to its original position so that the second end 13 cannot escape from the through hole 21. At this time, the through hole 21 can be designed with no deformation ability or a smaller deformation ability.

[0079] In this embodiment, the first end 12, the connecting portion 11 and the second end 13 are connected to form an integral structure independent of the gasket 20, the maximum distance formed by two points on the outer contour of the end surface of the first end 12 is greater than the maximum distance formed by two points on the outer contour of the end surface of the second end 13, and the maximum distance formed by two points on the outer contour of the end surface of the gasket 20 is greater than the maximum distance formed by two points on the outer contour of the end surface of the second end 13.

[0080] Here, "end face outer contour" refers to the outer periphery of the end face of each component in the extension direction of the connecting portion 11. Taking the first end 12 as an example, the first end 12 has two end faces close to the second end 13 and away from the second end 13. The two end faces may have different shapes or sizes. "The maximum distance formed by two points on the end face outer contour of the first end 12" refers to the maximum distance formed by two points on the outer contour of the end face with a larger area. The description of the gasket 20 and the second end 13 can refer to the description of the first end 12 above.

[0081] When the end faces of the first end 12, the second end 13 and the gasket 20 are all circular, the maximum radial dimension of the end face of the first end 12 is greater than the maximum radial dimension of the end face of the second end 13, and the maximum radial dimension of the end face of the gasket 20 is greater than the maximum radial dimension of the end face of the second end 13.

[0082] In this embodiment, combined with Figures 4 to 7 The shell-shaped dental device 200 includes an accessory assembly 100 and an orthodontic appliance 201. The orthodontic appliance 201 takes an invisible orthodontic appliance as an example. At this time, the orthodontic appliance 201 includes a cavity S for accommodating teeth, an inner surface S1 close to the cavity S, and an outer surface S2 away from the cavity S, but the present invention is not limited thereto. The orthodontic appliance 201 may also be an orthodontic appliance in other forms.

[0083] Here, the shape of the cavity S matches the tooth.

[0084] The appliance 201 further includes a mounting hole T penetrating the inner surface S1 and the outer surface S2 . When the accessory assembly 100 is assembled to the appliance 201 , the accessory body 10 passes through the mounting hole T and the gap P clamps the peripheral area of ​​the mounting hole T.

[0085] That is to say, the second end portion 13 at this time passes through the mounting hole T and the through hole 21 in sequence and cooperates with the gasket 20. When the accessory assembly 100 is assembled, the first end portion 12 is located on one side of the inner surface S1 or one side of the outer surface S2 of the corrector 201, and the second end portion 13 and the gasket 20 are located on the other side of the corrector 201. This embodiment takes the example in which the gasket 20 is completely located on one side of the inner surface S1, that is, the gasket 20 does not extend to one side of the mounting hole T or the outer surface S2, which can simplify the assembly process of the gasket 20 and the accessory body 10.

[0086] Here, compared with the design of directly bonding or welding the accessory assembly 100 to the surface of the corrector 201, the present embodiment realizes a snap-on mechanical fit between the accessory assembly 100 and the corrector 201 by forming a mounting hole T on the corrector 201. The mechanical fit can greatly improve the stability of the fit, and the split accessory body 10 and gasket 20 can greatly reduce the difficulty of assembling the accessory assembly 100 and the corrector 201.

[0087] In this embodiment, the corrector 201 also includes a mounting platform 202 protruding toward a side away from the cavity S, and the mounting platform 202 includes a first mounting surface 2021 located on the outer surface S1 and a second mounting surface 2022 located on the inner surface S2. The mounting hole T passes through the first mounting surface 2021 and the second mounting surface 2022. The setting of the mounting platform 202 can provide sufficient space for the installation of the accessory assembly 100.

[0088] Here, the distance that the mounting platform 202 protrudes from the cavity S (or tooth surface) ranges from 0.1mm to 1mm. For example, the mounting hole T is located on the side of the mounting platform 202 away from the cavity S, that is, the mounting hole T is located on the top surface of the mounting platform 202 at this time, but it is not limited to this.

[0089] The second mounting surface 2022 is surrounded by a receiving cavity S′ that communicates with the mounting hole T and the cavity S. When the accessory assembly 100 is assembled to the orthodontic appliance 201 , the gasket 20 and the second end portion 13 are both located in the receiving cavity S′.

[0090] That is to say, the gasket 20 and the second end 13 do not extend into the cavity S. When the patient wears the shell-shaped dental device 200, the gasket 20 and the second end 13 disposed near the cavity S will not interfere with the teeth in the cavity S, thereby avoiding the generation of unnecessary forces.

[0091] In other embodiments, at least a portion of the gasket 20 and the second end 13 may extend out of the accommodating cavity S', for example, to the gap between adjacent teeth or the cavitation area, and the gasket 20 or the second end 13 extending out of the accommodating cavity S' will not interfere with the teeth.

[0092] In this embodiment, the first mounting surface 2021 includes a first plane 2021 ′ away from the cavity S, the first plane 2021 ′ is used to support the first end 12 , and the second mounting surface 2022 includes a second plane 2022 ′ close to the cavity S, the second plane 2022 ′ is used to support the gasket 20 .

[0093] Here, the outer contour of the first plane 2021 ′ is substantially consistent with the outer contour of the first end 12 , and the outer contour line of the first plane 2021 ′ is located outside the outer contour line of the first end 12 , and the distance between the two outer contour lines ranges from 0.05 mm to 0.4 mm.

[0094] The first plane 2021' and the second plane 2022' are both arranged around the mounting hole T, and "the first plane 2021' is used to support the first end 12" means that the first plane 2021' directly contacts the first end 12, and "the second plane 2022' is used to support the gasket 20" means that the second plane 2022' directly contacts the gasket 20.

[0095] Specifically, the first end portion 12 includes a first mating surface 121 disposed facing the first plane 2021', the first mating surface 121 is a plane and abuts against the first plane 2021', or the first mating surface 121 is provided with a friction structure 1211 abutting against the first plane 2021' (see Fig.17 ).

[0096] Here, when the first mating surface 121 and the first plane 2021' are in planar contact with each other, the contact area between the first end 12 and the first plane 2021' can be increased; when the first mating surface 121 is provided with a friction structure 1211, the anti-slip effect between the first mating surface 121 and the first plane 2021' can be enhanced. In short, the stability of the mating between the first mating surface 121 and the first plane 2021' can be improved, thereby preventing the first end 12 from rotating relative to the first plane 2021'.

[0097] It should be noted that the friction structure 1211 can be a convex structure, or the friction structure 1211 can be a concave-convex matching structure formed between the first matching surface 121 and the first plane 2021', and when the first matching surface 121 is provided with a friction structure 1211, the first plane 2021' is also changed to a non-planar structure, and an anti-slip effect can still be achieved through the matching of the non-planar structure and the friction structure 1211, the same below.

[0098] Similarly, the gasket 20 includes a second mating surface 203 facing the second plane 2022 ′. The second mating surface 203 is a plane and abuts against the second plane 2022 ′, or the second mating surface 203 is provided with a friction structure abutting against the second plane 2022 ′.

[0099] Here, when the second mating surface 203 and the second plane 2022' are in plane contact with each other, the contact area between the gasket 20 and the second plane 2022' can be increased; when the second mating surface 203 is provided with a friction structure, the anti-slip effect between the second mating surface 203 and the second plane 2022' can be enhanced. In short, the stability of the mating between the second mating surface 203 and the second plane 2022' can be improved, thereby preventing the gasket 20 from rotating relative to the second plane 2022'.

[0100] In this embodiment, the inner contour of the mounting hole T matches the outer contour of the connecting portion 11 of the accessory body 10 , and the inner contour of the mounting hole T is circular or non-circular.

[0101] Among them, the non-circular shape can be an ellipse, a track shape or a polygon, etc., which is equivalent to forming a limiting structure to prevent rotation at the inner contour of the mounting hole T. For example, when the inner contour of the mounting hole T is a track shape or a polygon, the inner wall of the mounting hole T includes a plane, which can prevent the connecting part 11 from rotating relative to the mounting hole T, and can realize the installation of a specific angle between the accessory assembly 100 and the corrector 201.

[0102] In this embodiment, the accessory body 10 further includes a limiting portion located on the outer surface of the connecting portion 11 (see Fig.31When the accessory assembly 100 is assembled to the orthodontic appliance 201, the limiting portion and the orthodontic appliance 201 abut against each other to limit the rotation of the accessory body 10 relative to the orthodontic appliance 201.

[0103] The limiting portion is located in the gap P, and the limiting portion includes a plane, or the limiting portion includes a plurality of barbs distributed at intervals along the circumference of the connecting portion 11 (see Fig.31 The barbed portion 1111h).

[0104] Here, when the limiting portion includes a plane, that is, the outer surface of the connecting portion 11 includes a plane, the plane of the connecting portion can abut against the plane of the inner wall of the mounting hole T to limit the rotation of the connecting portion 11 relative to the mounting hole T, for example, Figure 8 and Fig. 9 As shown, the mounting hole T at this time is a runway hole with a plane, the outer surface of the connecting portion 11 includes a plane, and the outer contour of the connecting portion 11 matches the inner contour of the mounting hole T, and the connecting portion 11 can only be inserted into the mounting hole T at a specific angle.

[0105] When the limiting portion includes a plurality of barbs, the barbs abut against the inner wall of the mounting hole T to limit the connection portion 11 from rotating relative to the mounting hole T, thereby limiting the attachment body 10 from rotating relative to the appliance 201 .

[0106] In this embodiment, the shell-shaped dental instrument 200 further includes a colloid located inside the accessory assembly 100 or between the accessory assembly 100 and the appliance 201 .

[0107] For example, colloid is filled between the mounting hole T and the connecting portion 11 , or colloid is filled between the first end portion 12 and the corrector 201 , or colloid is filled between the gasket 20 and the corrector 201 , and so on.

[0108] In this embodiment, the mounting hole T is set corresponding to the gap between adjacent teeth. In this way, the accessory assembly 100 can be prevented from protruding too high from the tooth surface as a whole, thereby affecting the wearing experience. In addition, the mounting hole T can be set corresponding to the cheek surface, but is not limited to this. The opening position of the mounting hole T can be determined according to specific needs.

[0109] Here, when the mounting hole T is arranged corresponding to the cheek surface, the maximum distance between two points on the outer contour of the first end portion 12 exposed at the cheek surface does not exceed 5 mm, so as to avoid affecting the assembly success rate due to the oversized size of the first end portion 12 .

[0110] In this embodiment, the accessory assembly 100 further includes a functional portion 30, which is integrally formed with the first end portion 12, or the functional portion 30 is detachably connected to the first end portion 12, and different functional portions 30 can be adapted to different application scenarios.

[0111] Specifically, the functional part 30 is located on the side of the first end 12 away from the second end 13, and the functional part 30 is a hook-shaped structure, a jaw pad structure, a tubular structure, a groove structure, a ring structure, a tongue thorn structure, a tongue position guide structure, an indicator, a detector or a releaser.

[0112] The hook-shaped structure is used to provide a hanging point for hanging traction, and can be used in conjunction with rubber bands, J hooks, etc.

[0113] The jaw pad structure is used to open the bite and / or adjust the jaw position, such as leading the mandible forward, correcting misaligned jaws, etc.

[0114] The tubular structure can cooperate with arch wires, metal wires, etc. to provide support and / or thrust and / or tension and / or torsional force and / or arch expansion force, etc.

[0115] The grooved structure can cooperate with arch wires, metal wires, etc. to provide support and / or thrust and / or pulling force and / or torsional force and / or arch expansion force, etc.

[0116] The ring structure is used to provide a hanging point for hanging traction and / or support, and can be coordinated with rubber bands, J hooks, muscle function training structures, etc.

[0117] The tongue thorn structure is used to help patients correct their tongue position.

[0118] The tongue position guide structure is used to guide the training tongue and thus adjust its position.

[0119] Indicators are used to indicate the length of time patients wear the device, monitor patient compliance, etc.

[0120] The detector is used to detect the oral environment, etc.

[0121] Releasers are used to release chemical substances in the oral cavity, such as breath fresheners, agents for treating periodontal disease, etc.

[0122] Next, various specific embodiments of the accessory assembly 100 of the present invention are introduced.

[0123] Combination Fig.10 and Fig.11 , is a schematic diagram of the accessory body 10 of the first specific embodiment.

[0124] In the first specific embodiment, the functional part 30, the first end 12, the connecting part 11 and the second end 13 are an integral structure, the functional part 30 is an annular structure, and the annular structure is roughly a square ring, the connecting part 11 is an integral long cylinder, the first end 12 is a flat cylinder, the second end 13 is a flat cylinder, the first mating surface 121 of the first end 12 is a plane, and the second end 13 has a step surface 131 that protrudes out of the connecting part 11 in the circumferential direction of the connecting part 11. When the accessory body 10 and the gasket 20 are assembled to the corrector 201, the first mating surface 121 of the first end 12 and the first plane 2021' of the corrector 201 are in planar contact with each other to prevent the first end 12 from rotating relative to the first plane 2021', the second end 13 passes through the through hole 21 of the gasket 20 so that the gasket 20 is located on the step surface 131, and the side of the gasket 20 away from the step surface 131 abuts against the second plane 2022' of the corrector 201.

[0125] Combination Fig.12 and Fig.13 , is a schematic diagram of the accessory body 10a of the second specific embodiment. For the sake of convenience of explanation, the similar structures in the second specific embodiment that are the same as those in the first specific embodiment adopt the same or similar structures, and the same shall apply hereinafter.

[0126] The main difference between the second embodiment and the first embodiment is that the annular structure of the functional portion 30a of the second embodiment is a circular ring, and the second end portion 13a is a truncated cone.

[0127] For other descriptions of the second specific embodiment, reference may be made to the first specific embodiment, which will not be repeated here.

[0128] Combination Fig.14 and Fig.15 , is a schematic diagram of the accessory body 10b of the third specific embodiment.

[0129] The main difference between the third specific embodiment and the second specific embodiment is that the second end 13b of the third specific embodiment has an interface 132b, where the interface 132b is an annular recess. When the accessory body 10b and the gasket 20 are assembled to the corrector 201, the through hole 21 of the gasket 20 and the interface 132b are engaged with each other. For example, a protrusion that cooperates with the interface 132b is formed at the through hole 21. At this time, part or all of the second end 13b is inside the through hole 21.

[0130] Here, the depth of the interface 132b ranges from 0.02 mm to 0.5 mm.

[0131] For other descriptions of the third specific embodiment, reference can be made to other specific embodiments and will not be repeated here.

[0132] Combination Fig.16 and Fig.17, is a schematic diagram of the accessory body 10c of the fourth specific embodiment.

[0133] In the fourth specific embodiment, the functional portion 30c, the first end portion 12c, the connecting portion 11c and the second end portion 13c are an integral structure, the functional portion 30c is a hook-shaped structure 30c, the first end portion 12c includes a mounting surface 122c away from the second end portion 13c, the hook-shaped structure 30c is located on the mounting surface 122c, and a gap 31c is formed between the hook-shaped structure 30c and the mounting surface 122c for the traction member to enter and exit, the junction area between the hook-shaped structure 30c and the mounting surface 122c is located at the edge of the mounting surface 122c, the mounting surface 122c is circular, and in other embodiments, the mounting surface may also be elliptical.

[0134] The connecting portion 11c is an integral long cylindrical strip, the first end portion 12c is a flat cylindrical strip, the second end portion 13c is a truncated cone, the first mating surface 121c of the first end portion 12c is provided with a friction structure 1211c, the friction structure 1211c is a plurality of sharp protrusion structures, the second end portion 13c has a step surface 131c protruding out of the connecting portion 11c in the circumferential direction of the connecting portion 11c, when the accessory body 10c and the gasket 20 are assembled to the corrector 201, the friction structure 1211c contacts the first plane 2021' of the corrector 201 to prevent the first end portion 12c from rotating relative to the first plane 2021', the second end portion 13c passes entirely through the through hole 21 of the gasket 20 so that the gasket 20 is located on the step surface 131c, and the side of the gasket 20 away from the step surface 131 abuts against the second plane 2022' of the corrector 201.

[0135] It should be noted that when the hook structure 30c is subjected to the force of the traction member, since the mating strength between the first mating surface 121c of the first end portion 12c and the first plane 2021' of the orthodontic device 201 is better at this time, the traction force is not likely to cause the first end portion 12c to separate from the orthodontic device 201, and the entire accessory body 10c is not likely to detach from the orthodontic device 201.

[0136] For other descriptions of the fourth specific embodiment, reference may be made to other specific embodiments and will not be repeated here.

[0137] Combination Fig.18 and Fig.19 , is a schematic diagram of the accessory body 10d of the fifth specific embodiment.

[0138] In the fifth specific embodiment, the accessory assembly includes two accessory bodies 10d and two gaskets 20, the two first ends 12d are connected to each other, the two second ends 13d are separated from each other, and the two gaskets 20 cooperate with the two second ends 13d respectively.

[0139] Here, the functional portion 30d is a groove-shaped structure, and the functional portion 30d extends to cover the two connected first end portions 12d.

[0140] It can be understood that the size of the accessory combination at this time is relatively large, that is, the functional portion 30d of the groove-shaped structure is in the shape of an elongated strip, which can be set corresponding to multiple teeth. Of course, in other embodiments, the number of accessory bodies in an accessory combination can also be more than two.

[0141] For other descriptions of the fifth specific embodiment, reference can be made to other specific embodiments and will not be repeated here.

[0142] Combination Fig. 20 and Fig.21 , is a schematic diagram of the accessory body 10e of the sixth specific embodiment.

[0143] The main difference between the sixth embodiment and the fifth embodiment is that the functional portion 30e of the sixth embodiment is a tubular structure.

[0144] In addition, combined Fig. 22 and Fig.23 The two gaskets 20e matched with the two second end portions 13e can be connected as a whole, thereby facilitating assembly.

[0145] For other descriptions of the sixth specific embodiment, reference can be made to other specific embodiments and will not be repeated here.

[0146] Combination Fig.24 and Fig.25 , is a schematic diagram of the accessory body 10f of the seventh specific embodiment.

[0147] The main difference between the seventh embodiment and the fifth embodiment is that the functional portion 30f of the seventh embodiment is a jaw pad structure.

[0148] For other descriptions of the seventh specific embodiment, reference can be made to other specific embodiments and will not be repeated here.

[0149] Combination Figure 26 to Figure 29 , is a schematic diagram of the accessory assembly 100g of the eighth specific embodiment.

[0150] In the eighth specific embodiment, the functional portion 30g, the first end portion 12g, the connecting portion 11g and the second end portion 13g are an integrated structure, the functional portion 30g is a hook-shaped structure 30g, the hook-shaped structure 30g is specifically a mushroom head structure, the first end portion 12g includes a mounting surface 122g away from the second end portion 13g, the hook-shaped structure 30g is located on the mounting surface 122g, the junction area between the hook-shaped structure 30g and the mounting surface 122g is located in the middle of the mounting surface 122g, and the mounting surface 122g is circular.

[0151] The connecting portion 11g is an integral long cylindrical strip, the first end portion 12g is a flat cylindrical strip, the second end portion 13g is a flat cylindrical strip, the first mating surface 121g of the first end portion 12g is a plane, and the second end portion 13g has a step surface 131g protruding out of the connecting portion 11g in the circumferential direction of the connecting portion 11g.

[0152] The gasket 20g includes a hollow gasket body 22g and a plurality of blocking portions 23g connected to the inner edge of the gasket body 22g and distributed at intervals. The gasket body 22g and the blocking portions 23g are both bent toward a side away from the first end portion 12g, and the extension directions of the gasket body 22g and the blocking portions 23g are roughly the same, that is, the entire gasket 20g is roughly funnel-shaped, and the large-diameter opening of the funnel-shaped is closer to the first end portion 12g than the small-diameter opening, the gasket body 22g is closer to the first end portion 12g than the blocking portions 23g, and the plurality of blocking portions 23g of the gasket 20g are arranged to form a through hole 21g, and the through hole 21g is circular.

[0153] It can be understood that when the second end portion 13g passes through the through hole 21g, the funnel-shaped gasket 20g guides the second end portion 13g and assists the second end portion 13g to contact and pass through the through hole 21g.

[0154] When the accessory body 10g and the gasket 20g are assembled to the corrector 201, the first mating surface 121g of the first end portion 12g and the first plane 2021' of the corrector 201 are in plane contact with each other to prevent the first end portion 12g from rotating relative to the first plane 2021', and the second end portion 13g passes entirely through the through hole 21g of the gasket 20g so that the gasket 20g is located on the step surface 131g, and the side of the gasket 20g away from the step surface 131g (i.e., the edge of the large-diameter opening of the gasket 20g) abuts against the second plane 2022' of the corrector 201.

[0155] When the accessory body 10g and the gasket 20g are assembled and the second end 13g is subjected to a force in the direction toward the first end 12g, for example, when the accessory body 10g is subjected to a large load and the accessory body 10g has a tendency to move away from the gasket 20g, the second end 13g has a tendency to move in the direction of the first end 12g and drives the blocking portion 23g to deform toward the side close to the first end 12g, and the blocking portion 23g gradually becomes flat and the diameter of the through hole 21g is reduced, that is, the gasket 20g is tightened and squeezes the connecting portion 11g, and the fitting strength between the gasket 20g and the accessory body 10g is enhanced to prevent the accessory body 10g from falling off. At this time, the accessory body 10g may shake relative to the orthodontic device 201, but the accessory body 10g will not fall off from the orthodontic device 201.

[0156] Furthermore, in this specific embodiment, since the gasket body 22g can also be gradually flattened under the action of the blocking portion 23g, the matching strength between the gasket 20g and the accessory body 10g can be further enhanced.

[0157] It should be noted that when the hook structure 30g is subjected to the force of the traction member, since the mating strength between the first mating surface 121g of the first end portion 12g and the first plane 2021' of the orthodontic device 201 is better at this time, the traction force is not likely to cause the separation between the first end portion 12g and the orthodontic device 201, and the entire accessory body 10g is not likely to detach from the orthodontic device 201.

[0158] For other descriptions of the eighth specific embodiment, reference may be made to other specific embodiments and will not be repeated here.

[0159] Combination Figure 30 to Figure 34 , is a schematic diagram of the accessory assembly 100h of the ninth specific embodiment.

[0160] The main difference between the ninth specific embodiment and the eighth specific embodiment is that the second end 13h of the ninth specific embodiment is a truncated cone, the gasket 20h includes a hollow gasket body 22h and a plurality of blocking portions 23h connected to the inner edge of the gasket body 22h and distributed at intervals, the gasket body 22h extends horizontally and the blocking portions 23h are bent toward a side away from the first end 12h, and the plurality of blocking portions 23h of the gasket 20h are arranged to form a through hole 21h, and the through hole 21h is circular.

[0161] The gasket 20h has at least one first matching portion 25h on one side close to the first end portion 12h. When the accessory assembly 100 is assembled to the orthodontic appliance 201, the first matching portion 25h cooperates with the second matching portion on the orthodontic appliance 201 to limit the rotation of the gasket 20h relative to the orthodontic appliance 201.

[0162] Specifically, the first matching portion 25h and the second matching portion are a concave-convex matching structure. In this specific embodiment, the first matching portion 25h is a recess provided on the gasket body 22h, and the second matching portion is a convex portion located on the corrector 201. The recess and the convex portion cooperate with each other to limit the rotation of the gasket 20h relative to the corrector 201. Of course, in other embodiments, the first matching portion 25h may be a convex portion, and the second matching portion may be a recess.

[0163] A limiting portion 111h is provided on the outer surface of the connecting portion 11h. The limiting portion 111h includes a plurality of barbs 1111h distributed at intervals along the circumference of the connecting portion 11h. The plurality of barbs 1111h are arranged at the same height.

[0164] When the accessory body 10h and the gasket 20h are assembled to the corrector 201, the first mating surface 121h of the first end 12h and the first plane 2021' of the corrector 201 are in plane contact with each other to prevent the first end 12h from rotating relative to the first plane 2021', and the second end 13h passes entirely through the through hole 21h of the gasket 20h so that the gasket 20h is located on the step surface 131h, and the gasket 20h has a first mating portion 25h on the side away from the step surface 131h, and has a second mating portion at the second plane 2022' of the corrector 201, and the first mating portion 25h and the second mating portion cooperate with each other to limit the rotation of the gasket 20h relative to the corrector 201.

[0165] At the same time, the plurality of barbs 1111h abut against the inner wall of the mounting hole T to limit the connection portion 11h from rotating relative to the mounting hole T, thereby limiting the attachment body 10h from rotating relative to the orthodontic appliance 201 .

[0166] Here, since the multiple barbs 1111h are distributed at intervals, the contact areas between the multiple barbs 1111h and the inner wall of the mounting hole T are discontinuous point contacts or line contacts, which can increase the abutment strength between the multiple barbs 1111h and the inner wall of the mounting hole T, which can not only limit the rotation of the accessory body 10h relative to the orthodontic device 201, but also limit the movement of the accessory body 10h in the vertical direction (i.e., the extension direction of the connecting portion 11h) relative to the orthodontic device 201.

[0167] In the vertical direction, the barb portion 1111h has a certain length, so that when the orthodontic appliance 201 of different thicknesses is adapted, it can be ensured that the barb portion 1111h and the inner wall of the mounting hole T are in contact with each other.

[0168] When the accessory body 10h and the gasket 20h are assembled and the second end 13h is subjected to a force in the direction toward the first end 12h, for example, when the accessory body 10h is subjected to a large load and the accessory body 20h has a tendency to move away from the gasket 20h, the second end 13h has a tendency to move in the direction of the first end 12h and drives the blocking portion 23h to deform toward the side close to the first end 12h. The blocking portion 23h gradually becomes flat and the diameter of the through hole 21h is reduced, that is, the gasket 20h is tightened and squeezes the connecting portion 11h. The fitting strength between the gasket 20h and the accessory body 10h is enhanced to prevent the accessory body 10h from falling off. At this time, the accessory body 10h may shake relative to the orthodontic device 201, but the accessory body 10h will not fall off from the orthodontic device 201.

[0169] In order to further prevent it from falling off, colloid may be filled in the mounting hole T, and the colloid may be filled between the first end portion 12h and the orthodontic appliance 201, between the gasket 20h and the orthodontic appliance 201, and so on.

[0170] In addition, in this specific embodiment, the gasket 20h also includes a cover body portion 26h that is arranged around the outer periphery of the gasket body 22h and extends toward a side away from the first end portion 12h. At this time, the gasket body 22h and the cover body portion 26h are arranged to form a chamber, and the chamber can provide a positioning assistance function during the assembly process of the gasket 20h.

[0171] For other descriptions of the ninth specific embodiment, reference may be made to other specific embodiments and will not be repeated here.

[0172] Combination Figures 35 to 38 , is a schematic diagram of the accessory assembly 100i of the tenth specific embodiment.

[0173] The main difference between the tenth specific embodiment and the ninth specific embodiment is that the second end 13i of the tenth specific embodiment is a prism, specifically, the second end 13i is a quadrangular prism, and the gasket 20i includes a hollow gasket body 22i, and the gasket body 22i directly surrounds a through hole 21i.

[0174] Here, the four edges of the second end 13i can form stress concentration. When the second end 13i passes through the through hole 21i, the four edges of the second end 13i can more easily squeeze the through hole 21i through the concentrated stress, causing the through hole 21i to deform. Even if the multiple blocking portions spaced around the periphery of the through hole 21i are omitted, the through hole 21i can also be deformed smoothly. That is, the second end 13i in the form of a prism can greatly reduce the resistance of the second end 13i to penetrate the through hole 21i.

[0175] Compared with the gasket 20h of the ninth specific embodiment, the gasket 20i of this specific embodiment has a simpler structure, which largely avoids the shaking problem caused by the gap between the accessory body 10i and the gasket 20i after assembly.

[0176] For other descriptions of the tenth specific embodiment, reference can be made to other specific embodiments and will not be repeated here.

[0177] In summary, the present embodiment achieves mutual fixation of the accessory assembly 100 and the orthodontic appliance 201 by clamping the orthodontic appliance 201 through the cooperation of the accessory body 10 and the gasket 20, which can enhance the connection strength and connection reliability between the accessory assembly 100 and the orthodontic appliance 201, thereby reducing the risk of the accessory assembly 100 falling off. Even if the accessory assembly 100 fails due to excessive load in extreme cases, the accessory assembly 100 will not fall off the orthodontic appliance 201, thereby avoiding the situation where the accessory assembly 100 is swallowed by the patient.

[0178] In addition, by adding some additional structures (such as limiting parts, planes, blocking parts, etc.) to the accessory body 10, the gasket 20, and the corrector 201, the assembly process of the accessory body 10 and the gasket 20 can be facilitated, and the stability of the assembly between the accessory body 10, the gasket 20 and the corrector 201 can be improved.

[0179] It should be understood that although this specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each implementation mode may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

[0180] The series of detailed descriptions listed above are only specific descriptions of feasible implementation methods of the present invention. They are not intended to limit the scope of protection of the present invention. Any equivalent implementation methods or changes that do not deviate from the technical spirit of the present invention should be included in the scope of protection of the present invention.

Claims

1. An accessory assembly for fixing to an appliance, characterized in that: The accessory assembly includes an accessory body and a gasket, the accessory body includes a connecting portion and a first end and a second end located on opposite sides of the connecting portion, the gasket and the second end cooperate with each other, and a gap is formed between the gasket and the first end, and the gap is fixed to the corrector.

2. The accessory assembly according to claim 1, characterized in that: The gasket comprises a through hole, and the second end portion penetrates into the through hole and cooperates with the gasket.

3. The accessory assembly according to claim 2, characterized in that: The through hole is a circular hole, the second end is a cylinder, a frustum or a pyramid protruding out of the connecting portion, and the maximum distance formed by two points on the lower bottom surface contour of the cylinder, frustum or pyramid is greater than the diameter of the through hole in the initial state.

4. The accessory assembly according to claim 2, characterized in that: The gasket comprises a hollow gasket body and a plurality of blocking parts connected to the inner edge of the gasket body and distributed at intervals, and side holes are formed between adjacent blocking parts. The side holes are located at the periphery of the through hole and connected to the through hole.

5. The accessory assembly according to claim 4, characterized in that: The gasket body and the blocking portion both extend horizontally, or the gasket body extends horizontally and the blocking portion is bent toward a side away from the first end, or the gasket body and the blocking portion are both bent toward a side away from the first end.

6. The accessory assembly according to claim 1, characterized in that: The accessory body also includes a limiting portion located on the outer surface of the connecting portion. When the accessory assembly is assembled to the orthodontic appliance, the limiting portion and the orthodontic appliance abut against each other to limit the rotation of the accessory body relative to the orthodontic appliance.

7. The accessory assembly according to claim 6, characterized in that: The limiting portion is located in the gap, and the limiting portion includes a plane, or the limiting portion includes a plurality of barbs distributed at intervals along the circumference of the connecting portion.

8. The accessory assembly according to claim 1, characterized in that: The connecting portion is an integrated columnar structure, or the connecting portion includes a plurality of connecting columns arranged at intervals.

9. The accessory assembly according to claim 1, characterized in that: The first end portion protrudes out of the connecting portion in a circumferential direction of the connecting portion, and a structure formed by the second end portion cooperating with the gasket protrudes out of the connecting portion in a circumferential direction of the connecting portion.

10. The accessory assembly according to claim 9, characterized in that: The second end portion has a step surface protruding out of the connecting portion toward the circumference of the connecting portion, and the step surface carries the gasket, or the second end portion has an interface, and the gasket and the interface are engaged with each other.

11. The accessory assembly according to claim 1, characterized in that: The gasket has at least one first matching portion on one side close to the first end portion. When the accessory assembly is assembled to the orthodontic appliance, the first matching portion cooperates with the second matching portion on the orthodontic appliance to limit the gasket from rotating relative to the orthodontic appliance.

12. The accessory assembly according to claim 1, characterized in that: The accessory assembly further includes a functional portion, which is integrally formed with the first end portion, or the functional portion is detachably connected to the first end portion.

13. The accessory assembly according to claim 12, characterized in that: The functional part is located on a side of the first end away from the second end, and the functional part is a hook-shaped structure, a jaw pad structure, a tubular structure, a groove structure, a ring structure, a tongue thorn structure, a tongue position guiding structure, an indicator, a detector or a releaser.

14. The accessory assembly according to claim 12, characterized in that: The functional part is a hook-shaped structure, the first end portion includes a mounting surface away from the second end portion, the hook-shaped structure is located on the mounting surface, and a gap is formed between the hook-shaped structure and the mounting surface for the traction member to enter and exit.

15. The accessory assembly according to claim 1, characterized in that: The accessory assembly comprises two accessory bodies and two gaskets, the two first ends are connected to each other, the two second ends are separated from each other, and the two gaskets cooperate with the two second ends respectively.

16. The accessory assembly according to claim 1, characterized in that: The first end, the connecting portion and the second end are connected to form an integral structure independent of the gasket, the maximum distance formed by two points on the outer contour of the end surface of the first end is greater than the maximum distance formed by two points on the outer contour of the end surface of the second end, and the maximum distance formed by two points on the outer contour of the end surface of the gasket is greater than the maximum distance formed by two points on the outer contour of the end surface of the second end.

17. A shell-shaped dental instrument, characterized in that: It comprises a brace and an accessory assembly as described in any one of claims 1 to 16, wherein the brace comprises a cavity for accommodating teeth, an inner surface close to the cavity and an outer surface away from the cavity, and the brace also comprises a mounting hole passing through the inner surface and the outer surface, and when the accessory assembly is assembled to the brace, the accessory body passes through the mounting hole and the gap clamps the peripheral area of ​​the mounting hole.

18. The shell-shaped dental device according to claim 17, characterized in that: The gasket is located entirely on one side of the inner surface.

19. The shell-shaped dental device according to claim 17, characterized in that: The orthodontic device also includes a mounting platform protruding toward a side away from the cavity, the mounting platform includes a first mounting surface located on the outer surface and a second mounting surface located on the inner surface, and the mounting hole passes through the first mounting surface and the second mounting surface.

20. The shell-shaped dental device according to claim 19, characterized in that The second mounting surface is configured to form a receiving cavity connecting the mounting hole and the cavity. When the accessory assembly is assembled to the corrector, the gasket and the second end are both located in the receiving cavity, or at least a portion of the gasket and the second end extends out of the receiving cavity.

21. The shell-shaped dental device according to claim 19, characterized in that The first mounting surface includes a first plane away from the cavity, the first plane is used to support the first end, and the second mounting surface includes a second plane close to the cavity, the second plane is used to support the gasket.

22. The shell-shaped dental device according to claim 21, characterized in that The first end portion includes a first mating surface arranged facing the first plane, the first mating surface is a plane and abuts against the first plane, or the first mating surface is provided with a friction structure abutting against the first plane.

23. The shell-shaped dental device according to claim 21, characterized in that The gasket includes a second mating surface facing the second plane, the second mating surface is a plane and abuts against the second plane, or the second mating surface is provided with a friction structure abutting against the second plane.

24. The shell-shaped dental device according to claim 17, characterized in that The inner contour of the mounting hole matches the outer contour of the connecting portion, and the inner contour of the mounting hole is circular or non-circular.

25. The shell-shaped dental device according to claim 17, characterized in that The mounting holes are arranged corresponding to the gaps between adjacent teeth.

26. The shell-shaped dental device according to claim 17, characterized in that The shell-shaped dental appliance further comprises a colloid located inside the accessory assembly or between the accessory assembly and the appliance.

Images