Ligation-free cover plate applied to appliance, correction device and correction system

Abstract

The utility model discloses a ligation-free cover plate applied to a correction appliance, a correction device and a correction system.The ligation-free cover plate comprises a rounded exposed face and a matching face used for being matched with the correction appliance, the matching face is provided with at least two buckling parts, the buckling parts are oppositely arranged, the buckling parts are formed by inwards buckling the side edges of the matching face, and the side edges of the buckling parts are matched with the exposed face; the buckling parts are used for being matched with the appliance to limit the relative positions of the buckling parts and the appliance in the first direction and the second direction; the positioning part protrudes relative to the matching surface and is used for being matched with the appliance to limit the relative positions of the positioning part and the appliance in the third direction; and the adaptive part is raised relative to the matching surface, and the adaptive part is used for extending into an arch wire groove of the appliance and realizing the matching with an arch wire. Through structural optimization of the cover plate, the production efficiency can be improved for manufacturers, the production cost can be reduced, the operation can be more convenient and efficient for dentists, and a patient can obtain more comfortable treatment experience.

Description

Technical Field

[0001] The present application relates to the field of dental correction, and in particular to a ligature-free cover sheet, correction device and correction system for correction appliances. Background Art

[0002] At present, in the orthodontic treatment process of oral teeth, the appliance is fixed on the tooth surface, the archwire passes through the archwire slot on the appliance, and the archwire is coupled to the appliance through a ligature component or the self-ligating cover of the appliance itself (commonly seen in self-ligating brackets). The correction force of the archwire is transmitted to the teeth through the appliance, so that the teeth produce the expected movement, thereby achieving the purpose of correcting the teeth.

[0003] Due to the drawbacks of complicated ligation operation and not rounded appearance structure, common ligation brackets as traditional orthodontic appliances are used less and less in the current market. The main reason is that the ligation operation is complicated and requires experienced clinical doctors, and the not rounded appearance structure is easy to puncture the inner wall of the oral cavity and cause oral discomfort to patients. However, the existing self-ligating brackets have a complex structure, high production requirements, and complex processes because of the need to set a movable self-ligating cover plate and a limit structure for the self-ligating cover plate, which affects the design space. Therefore, those skilled in the art have been exploring how to improve the coupling method of the orthodontic appliance and the archwire to overcome the above problems. Utility Model Content

[0004] In order to solve the above technical problems, the present application discloses a ligation-free cover sheet for use with an orthodontic appliance, wherein the ligation-free cover sheet comprises a rounded exposed surface and a mating surface for mating with the orthodontic appliance, wherein the mating surface is provided with:

[0005] There are at least two buckling parts which are arranged opposite to each other, the buckling parts are formed by the side edges of the matching surface buckling inwardly, and each buckling part is used to cooperate with the orthodontic appliance to limit the relative position of the two in the first direction and the second direction;

[0006] A positioning portion, compared to the mating surface protrusion, the positioning portion is used to cooperate with the orthodontic appliance to limit the relative position of the two in a third direction;

[0007] The adapter portion is protruded compared to the mating surface, and is used to extend into the archwire slot of the orthodontic appliance and achieve mating with the archwire.

[0008] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution, but are merely further supplements or preferences. Under the premise that there are no technical or logical contradictions, each optional method can be combined with the above-mentioned overall solution separately, and multiple optional methods can also be combined.

[0009] Optionally, the ligation-free cover sheet is a split structure, and when combined with the corrective appliance, the cover sheet is integrated and the constraint relationship on each degree of freedom is determined.

[0010] Optionally, the buckling portion and / or the positioning portion and / or the adapting portion are separate structures from the matching surface, and are installed on the matching surface after the ligation-free cover sheet is combined with the corrector.

[0011] Optionally, the ligation-free cover sheet is a deformable structure, and the combination relationship is determined by deformation.

[0012] Optionally, the ligation-free cover sheet is an elastic structure and realizes the deformable structure through its own elasticity.

[0013] Optionally, the overall shape of the ligation-free cover is U-shaped, the outer surface of the U-shape is the exposed surface, the inner surface of the U-shape is the mating surface, the two ends of the U-shaped opening are buckled inward to form two oppositely arranged buckling parts, and the positioning part and the adapter part are located inside the U-shaped opening.

[0014] Optionally, two positioning portions are provided and are respectively arranged inside the buckling portion, and the two positioning portions are symmetrically arranged.

[0015] Optionally, the two positioning parts extend respectively from the buckling part where they are located toward the adapting part, and in the second direction, the positioning part pops out of the buckling part and is spaced apart from the adapting part.

[0016] Optionally, the cross-sectional shape of the adapter portion is an arc that is buckled onto the mating surface and has a smooth transition with the mating surface, and the top of the arc is used to extend into the archwire slot.

[0017] Optionally, the adapting portion extends in the third direction and passes through the ligation-free cover sheet.

[0018] Optionally, the first direction is a direction in which the base is away from the tooth surface where it is located, the second direction is a direction perpendicular to the archwire slot and coplanar with the archwire slot, and the third direction is an extension direction of the archwire slot;

[0019] In the first direction, the ligation-free cover sheet covers the top surface of the appliance.

[0020] The present application also discloses a correction device, including a corrector and the ligation-free cover sheet in the above technical solution, wherein the corrector includes:

[0021] The mesh base is used to adhere to the corresponding tooth surface;

[0022] A base, disposed on the mesh bottom and extending away from the tooth surface, wherein the top surface of the base and the mating surface are in contact with each other;

[0023] an archwire slot penetrating the base and exposed on the top surface of the base;

[0024] A wing portion, arranged at an end of the base away from the net bottom;

[0025] In the first direction and the second direction, the buckling portion and the side edge of the wing portion are buckled with each other; in the third direction, the positioning portion and the side surface of the wing portion are abutted against each other.

[0026] Optionally, the wing portions are provided in plurality and are arranged in groups, each group of wing portions includes at least two wing portions arranged in a gap, and at least two groups of wing portions are arranged back to back relative to the archwire slot, two engaging portions are respectively engaged with the wing portions on both sides of the archwire slot, and the positioning portion extends into the gap between each group of wing portions and abuts against the side of the corresponding wing portion.

[0027] The present application also discloses a correction system, comprising a plurality of correction devices, wherein at least one correction device is the correction device in the above technical solution.

[0028] The technical solution disclosed in this application overcomes the drawbacks of the common ligature brackets, such as the complicated ligature operation and the not rounded appearance structure, as well as the complex structure and production process of the self-ligating brackets and the low yield rate, by optimizing the structure of the cover plate, and provides a structural basis for the overall optimization of the correction device. For manufacturers, it can improve production efficiency and reduce production costs, for dentists, it can make the operation more convenient and efficient, and for patients, it can provide a more comfortable treatment experience.

[0029] The specific beneficial technical effects will be further explained in the specific implementation methods in combination with specific structures or steps. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figures 1 to 3 Schematic diagram of the structure of the ligation-free cover sheet at different viewing angles in one embodiment;

[0031] Figure 4 This is a schematic diagram of the structure of a correction device in one embodiment;

[0032] Figure 5 and Figure 6 Schematic diagram of the structure of the appliance at different viewing angles in one embodiment;

[0033] Figure 7 for Figure 4 Schematic diagram of the structure of the correction device from different viewing angles;

[0034] Figure 8 for Figure 7 A schematic cross-sectional view of the correction device at the dotted line position.

[0035] The reference numerals in the figures are described as follows:

[0036] 1. Ligation-free cover; 11. Exposed surface; 12. Matching surface; 121. Fastening portion; 122. Positioning portion; 123. Adaptation portion;

[0037] 2. Orthodontic appliance; 21. Archwire slot; 22. Mesh bottom; 23. Base; 24. Wing;

[0038] 31. First direction; 32. Second direction; 33. Third direction. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0040] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be a central component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be a central component at the same time.

[0041] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0042] Reference Figure 1 To Attachment Figure 4 As shown, the present application discloses a ligation-free cover sheet for use with a corrector. The ligation-free cover sheet 1 includes a rounded exposed surface 11 and a mating surface 12 for mating with the corrector 2. The mating surface 12 is provided with:

[0043] There are at least two buckling parts 121 which are arranged opposite to each other. The buckling parts 121 are formed by buckling the side edges of the mating surface 12 inwardly. Each buckling part 121 is used to cooperate with the orthodontic appliance 2 to limit the relative position of the two in the first direction and the second direction.

[0044] The positioning portion 122 is raised compared to the mating surface 12, and the positioning portion 122 is used to cooperate with the orthodontic appliance 2 to limit the relative position of the two in the third direction;

[0045] The adapting portion 123 is raised compared to the mating surface 12, and is used to extend into the archwire slot 21 of the orthodontic appliance 2 and achieve mating with the archwire (not shown).

[0046] In this embodiment, the exposed surface 11 is used to achieve a rounded appearance, and the mating surface 12 is used to achieve assembly with the appliance 2. The exposed surface 11 and the mating surface 12 can be cooperatively arranged as shown in the accompanying drawings to form a hyperbolic rounded structure. In other embodiments, the exposed surface 11 and the mating surface 12 are extended independently to provide a freer design space. The mating relationship between the mating surface 12 and the appliance 2 is determined by the snap-fit ​​portion 121 and the positioning portion 122. The snap-fit ​​portion 121 can be combined with the appliance 2 to form a snap-fit ​​structure. The positioning portion 122 can be positioned with the appliance 2, thereby limiting the movement of the ligation-free cover in a specific direction (for example, the mesiodistal direction), so that the ligation-free cover can be loaded on the surface of the appliance 2 without falling off. The adapter 123 can close the archwire slot 21 of the appliance 2, thereby limiting the movement of the archwire and achieving a self-locking function.

[0047] The ligation-free cover sheet in the present application can adapt to a variety of correction types (such as ordinary ligation brackets), and can achieve the use effect of self-ligation brackets after combination. At the same time, the smooth setting of the exposed surface 11 can independently modify the external performance of the appliance 2, providing a more rounded overall appearance. On the whole, the structural optimization of the cover sheet overcomes the shortcomings of the complicated ligation operation and the less rounded appearance structure of ordinary ligation brackets, as well as the complex structure and production process of self-ligation brackets and the low yield rate, providing a structural basis for the overall optimization of the appliance 2. For manufacturers, it can improve production efficiency and reduce production costs, for dentists, it can make the operation more convenient and efficient, and for patients, they can get a more comfortable treatment experience.

[0048] The first direction, the second direction, and the third direction must at least be set to ensure that the relative position between the ligation-free cover sheet and the appliance can be determined. In actual products, the first direction, the second direction, and the third direction can be set in a variety of ways, such as the first direction, the second direction, and the third direction intersecting with each other and establishing at least one spatial coordinate system, and further, for example, the first direction, the second direction, and the third direction are perpendicular to each other. Figure 4 In the illustrated embodiment, the first direction 31 is the direction in which the base is away from the tooth surface, the second direction 32 is the direction perpendicular to the archwire slot and coplanar with the archwire slot, and the third direction 33 is the extension direction of the archwire slot.

[0049] The ligature-free cover sheet needs to provide a rounded appearance for the appliance 2, so in the direction in which the base 23 is away from the tooth surface (in this embodiment, the first direction), the ligature-free cover sheet covers the top surface of the appliance 2, that is, the ligature-free cover sheet completely covers the appliance 2. Figure 1In the embodiment shown, the overall shape of the ligation-free cover sheet is U-shaped, the outer surface of the U-shape is the exposed surface 11, the inner surface of the U-shape is the mating surface 12, the two ends of the U-shaped opening are buckled inward to form two oppositely arranged buckling parts 121, and the positioning part 122 and the adapting part 123 are located inside the opening of the U. The U-shape provides a semi-enclosed space, and after being combined with the orthodontic device 2, the various structures on the mating surface 12 can be protected inside, thereby avoiding the intrusion of external foreign objects and improving stability.

[0050] For details on the arrangement of the mating surface 12, refer to the attached Figure 2 In the embodiment shown, two positioning parts 122 are provided and are respectively arranged inside the buckle part 121, and the two positioning parts 122 are symmetrically arranged. The symmetrically arranged positioning parts 122 can provide a more uniform restraining effect, and through the mutual confrontation between the two, a structural basis is provided for realizing multi-dimensional restraint. For further details, refer to the attached Figure 3 In the illustrated embodiment, the two positioning portions 122 extend from the buckling portion 121 respectively toward the adapting portion 123. In the second direction, the positioning portions 122 pop out of the buckling portion 121 and are spaced apart from the adapting portion 123. The spacing arrangement can control the overall thickness of the cover sheet while ensuring the restraining effect, thereby controlling the overall size of the assembled appliance 2.

[0051] Regarding the details of the arrangement of the adapter 123, referring to the embodiment shown in the drawings, the cross-sectional shape of the adapter 123 is an arc buckled on the mating surface 12 and smoothly transitions with the mating surface 12, and the top of the arc is used to extend into the archwire slot 21. Further, the adapter 123 extends in the third direction and penetrates the ligation-free cover sheet.

[0052] It is not difficult to understand that the ligation-free cover sheet needs to be spatially positioned with the appliance 2, so when they are combined, the order of mutual coordination in each degree of freedom needs to be controlled to improve assembly efficiency. For example, the ligation-free cover sheet is a split structure, and when combined with the appliance 2, it is combined and the constraint relationship in each degree of freedom is determined; for another example, the snap-fitting portion 121 and / or the positioning portion 122 and / or the adapter portion 123 and the mating surface 12 are split structures, and are installed on the mating surface 12 after the ligation-free cover sheet is combined with the appliance 2; it can also be referred to the embodiment shown in the accompanying drawings, the ligation-free cover sheet is a deformable structure, and the determination of the combination relationship is achieved through deformation. The deformable structure has a variety of design forms, such as hinge type, sliding type, etc. In the accompanying drawings, the ligation-free cover sheet is an elastic structure and the deformable structure is achieved through its own elasticity. The specific material of the ligation-free cover sheet can be thermoplastic polyurethane (such as TPU / ETPU), plastic (such as ABS / PC / PP), or rubber. According to the characteristics of different materials, the ligation-free cover sheet can be transparent, semi-transparent or opaque. Correspondingly, multiple colors can be set, and different colors can be set for different regions to beautify the appearance or realize identification.

[0053] Reference Figure 4 To Attachment Figure 8 As shown, the present application also discloses a correction device, including a correction device 2 and a ligation-free cover sheet in the above technical solution. Figure 5 As shown, the appliance 2 comprises:

[0054] The mesh bottom 22 is used for adhering to the corresponding tooth surface;

[0055] A base 23 is disposed on the mesh bottom 22 and extends away from the tooth surface, and the top surface of the base 23 and the mating surface are in contact with each other;

[0056] An archwire slot 21 passes through the base 23 and is exposed on the top surface of the base 23;

[0057] The wing portion 24 is arranged at an end of the base 23 away from the net bottom 22;

[0058] In the first direction and the second direction, the locking portion 121 and the side edge of the wing portion 24 are locked with each other; in the third direction, the positioning portion 122 and the side surface of the wing portion 24 are pressed against each other.

[0059] Attached Figure 5 and attached Figure 6 In the illustrated embodiment, a plurality of wings 24 are provided and arranged in groups, each group of wings 24 includes at least two wings 24 arranged in a gap, and at least two groups of wings 24 are arranged opposite to the archwire slot 21, and the two buckling portions 121 are respectively buckled with the wings 24 on both sides of the archwire slot 21, and the positioning portion 122 extends into the gap between each group of wings 24 and abuts against the side of the corresponding wing 24. Figure 8As shown, the width of the positioning portion 122 matches the gap size between the wings 24 .

[0060] It is not difficult to understand that the present application also discloses a correction system, including a plurality of correction devices, at least one of which is the correction device in the above technical solution.

[0061] The technical features of the above-mentioned embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification. When the technical features in different embodiments are embodied in the same figure, it can be regarded that the figure also discloses the combination examples of the various embodiments involved.

[0062] The above-mentioned embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application.

Claims

1. A ligation-free cover sheet for an orthodontic appliance, characterized in that: The ligation-free cover sheet comprises a rounded exposed surface and a mating surface for mating with the appliance, wherein the mating surface is provided with: There are at least two buckling parts which are arranged opposite to each other, the buckling parts are formed by the side edges of the matching surface buckling inwardly, and each buckling part is used to cooperate with the orthodontic appliance to limit the relative position of the two in the first direction and the second direction; A positioning portion, compared to the mating surface protrusion, the positioning portion is used to cooperate with the orthodontic appliance to limit the relative position of the two in a third direction; The adapter portion is protruded compared to the mating surface, and is used to extend into the archwire slot of the orthodontic appliance and achieve mating with the archwire.

2. The ligation-free cover sheet for use in a corrective appliance according to claim 1, characterized in that: The overall shape of the ligation-free cover is U-shaped, the outer surface of the U-shape is the exposed surface, the inner surface of the U-shape is the mating surface, the two ends of the U-shaped opening are buckled inward to form two oppositely arranged buckling parts, and the positioning part and the adapter part are located inside the U-shaped opening.

3. The ligation-free cover sheet for use in a corrective appliance according to claim 2, characterized in that: The two positioning parts are provided and are respectively arranged inside the buckling part, and the two positioning parts are symmetrically arranged.

4. The ligation-free cover sheet for use in a corrective appliance according to claim 3, characterized in that: The two positioning parts extend from the buckling part toward the adapting part respectively. In the second direction, the positioning part pops out of the buckling part and is spaced apart from the adapting part.

5. The ligation-free cover sheet for use in a corrective appliance according to claim 1, characterized in that: The cross-sectional shape of the adapter portion is an arc that is buckled onto the mating surface and has a smooth transition with the mating surface, and the top of the arc is used to extend into the archwire slot.

6. The ligation-free cover sheet for use in a corrective appliance according to claim 1, characterized in that: The adapting portion extends in the third direction and penetrates the ligation-free cover sheet.

7. The ligation-free cover sheet for use in a corrective appliance according to claim 1, characterized in that: The first direction is the direction in which the base is away from the tooth surface where it is located, the second direction is the direction perpendicular to the archwire slot and coplanar with the archwire slot, and the third direction is the extension direction of the archwire slot; In the first direction, the ligation-free cover sheet covers the top surface of the appliance.

8. A correction device, characterized in that The invention comprises a corrector and a ligation-free cover sheet according to any one of claims 1 to 7, wherein the corrector comprises: The mesh base is used to adhere to the corresponding tooth surface; A base, disposed on the mesh bottom and extending away from the tooth surface, wherein the top surface of the base and the mating surface are in contact with each other; an archwire slot penetrating the base and exposed on the top surface of the base; A wing portion, arranged at an end of the base away from the net bottom; In the first direction and the second direction, the buckling portion and the side edge of the wing portion are buckled with each other; in the third direction, the positioning portion and the side surface of the wing portion are abutted against each other.

9. The correction device according to claim 8, characterized in that: The wing portions are provided in plurality and are arranged in groups, each group of wing portions includes at least two wing portions arranged in a gap, and at least two groups of wing portions are arranged back to back relative to the archwire slot, and two buckling portions are respectively buckled with the wing portions on both sides of the archwire slot, and the positioning portion extends into the gap between each group of wing portions and abuts against the side of the corresponding wing portion.

10. A correction system, characterized in that: It comprises several corrective devices, wherein at least one corrective device is a corrective device according to any one of claims 8 to 9.

Images