Long arm accessory mounting system

Abstract

Each embodiment of the utility model provides a long-arm accessory mounting system which comprises a positioning template and a long-arm accessory detachably mounted on the positioning template, and the positioning template is used for adhering the long-arm accessory to the surface of a tooth; the long-arm accessory comprises a bonding bottom plate and an accessory body which are directly or indirectly connected together, and the bonding bottom plate comprises a bonding surface bonded with the tooth surface and a connecting surface directly or indirectly connected with the accessory body. The positioning template comprises a tooth accommodating cavity for wrapping a tooth crown and an accommodating cavity body protruding from the surface of the tooth accommodating cavity to a far tooth direction, and the size and shape of the accommodating cavity body are matched with the size and shape of a bonding bottom plate of at least part of the long-arm accessory for clamping and fixing the at least part of the bonding bottom plate; one side, close to the gum end, of the accommodating cavity is provided with an opening structure; after the containing cavity and the bonding bottom plate are installed, the accessory body protrudes out of the opening structure. When the accessory is worn, a gap is kept between the accessory body and the gingiva at the corresponding position.

Description

Technical Field

[0001] The embodiments of the present application relate to the technical field of oral orthodontics, and in particular to a long arm attachment mounting system. Background Art

[0002] During the orthodontic process, in order to achieve better treatment results, some auxiliary devices are usually used clinically, such as lingual clasps, long-arm attachments, etc. In order to better control the position, direction or size of the force, the length of some devices will extend to the gum area.

[0003] When the device / accessory that extends to the gum area is pasted on the tooth surface, there is no corresponding positioning template in clinical use. The doctor finds the position for manual pasting based on subjective judgment according to clinical needs. In particular, for invisible orthodontic correction technology, the processing of invisible braces also needs to avoid the pasting area. Specifically, taking the long-arm attachment as an example, when the clinician is pasting it, the pasting position and direction are uncontrollable because there is no positioning template during the manual pasting process. In order not to affect the wearing of the brace, the brace processing usually makes a semicircular incision at the pasting tooth position to avoid the pasted long-arm attachment. However, doing so will reduce the wrapping of the brace on the tooth surface, reduce the orthodontic force of the tooth, and reduce the control over the tooth. At the same time, there are fewer braces at the incision than in other areas, increasing the risk of breakage here. In another case, the orthodontic appliance can cover the wrapped area of ​​the long arm attachment, but this processing requires the long arm attachment to be pasted before the intraoral tooth model is made, and then the orthodontic appliance that can wrap the long arm attachment is designed and processed based on the made model. However, this method has a long cycle and requires two model preparations and designs, which has certain costs for doctors, companies and patients.

[0004] Therefore, it is necessary to provide a new long arm accessory mounting system to achieve the pasting of the long arm accessory. Utility Model Content

[0005] The purpose of the implementation mode of the present application is to provide a novel long arm accessory installation system, which can achieve precise pasting of accessories.

[0006] To achieve the above object, an embodiment of the present application provides a long arm attachment installation system, including a positioning template and a long arm attachment detachably installed with the positioning template. The positioning template is used to paste the long arm attachment on the tooth surface; the long arm attachment includes an adhesive bottom plate and an attachment body directly or indirectly connected together. The adhesive bottom plate includes an adhesive surface adhered to the tooth surface and a connection surface directly or indirectly connected to the attachment body. The positioning template includes a tooth receiving cavity that wraps the tooth crown and a receiving cavity protruding from the surface of the tooth receiving cavity in the direction away from the tooth. The size and shape of the receiving cavity match the size and shape of at least part of the adhesive bottom plate of the long arm attachment for clamping the at least part of the adhesive bottom plate. One side of the receiving cavity adjacent to the gingival end has an opening structure; after the receiving cavity and the adhesive bottom plate are installed, the attachment body protrudes from the opening structure; wherein, when the positioning template is worn on the corresponding tooth for pasting the long arm attachment, the attachment body maintains a gap with the gingiva at the corresponding position.

[0007] Preferably, the adhesive surface and the connection surface are arranged adjacent to each other, and all of the adhesive bottom plate is clamped in the receiving cavity.

[0008] Preferably, the adhesive surface and the connection surface are arranged opposite to each other.

[0009] Preferably, the attachment body is connected to the connection surface through a fixing portion.

[0010] Preferably, the fixing portion and the attachment body are located on one side of the transverse axis of the connection surface.

[0011] Preferably, a hollow channel is provided at the position of the receiving cavity facing away from the tooth corresponding to the fixing portion.

[0012] Preferably, the edge of the hollow channel and the edge of the fixing portion are in a clamping fit.

[0013] Preferably, the positioning template further includes a gingiva receiving cavity extending from one end of the opening structure of the receiving cavity towards the gingiva direction, and the gingiva receiving cavity is used to receive the attachment body.

[0014] Preferably, the tooth receiving cavity where the receiving cavity is located and the adjacent tooth receiving cavity extend towards the gingiva to have an extension portion for carrying the gingiva receiving cavity.

[0015] Preferably, a fracture line with a weak connection is provided along the vertical direction on the surface of the receiving cavity facing away from the tooth.

[0016] Preferably, the thickness of the adhesive bottom plate is between 7mm and 35mm.

[0017] Preferably, the attachment body and the adhesive bottom plate are detachably connected.

[0018] Preferably, the detachable connection is a threaded connection, and the ascending direction of the spiral is the long axis direction of the attachment body.

[0019] Preferably, the bonding base plate is integrally in the shape of a cuboid or a frustum of a pyramid.

[0020] Preferably, the attachment body has at least two hook grooves.

[0021] Preferably, the traction directions of the at least two hook grooves are opposite.

[0022] A long-arm attachment installation system provided by the present utility model realizes the installation of a long-arm attachment exceeding the crown part. The long-arm attachment installation system includes a long-arm attachment with a predetermined shape and a positioning template for the long-arm attachment. The long-arm attachment includes a bonding base plate and an attachment body. The positioning template includes a tooth receiving cavity that can be worn on the tooth and a receiving cavity for clamping the bonding base plate. When the positioning template is worn on the corresponding tooth for pasting the long-arm attachment, a gap is maintained between the attachment body and the gingiva at the corresponding position. In the present application, the long-arm attachment installation system is not only convenient to operate, but also can accurately and quickly paste the long-arm attachment on the tooth surface. Through the receiving cavity, the long-arm attachment can be installed at a predetermined position and in a predetermined orientation according to the orthodontic plan, which limits that the long-arm attachment can only be pasted on the tooth surface in a unique way. Moreover, through the control of the receiving cavity, the pasted long-arm attachment will not come into contact with the gingiva, thus avoiding the extrusion of the gingiva by the long-arm attachment during use.

[0023] In the long-arm attachment installation system provided by the present utility model, the long-arm attachment can be a standard part formed integrally or in a split manner. The bonding base plate of the long-arm attachment can be in a standard shape that is integrally in the shape of a cuboid or a frustum of a pyramid. Therefore, in the design process of the invisible orthodontic appliance, the orthodontic appliance can be designed to wrap the bonding base plate according to the shape of the bonding base plate, ensuring the integrity of the orthodontic appliance and not affecting the control of the orthodontic appliance on the teeth due to the pasting of the long-arm attachment. And the split long-arm attachment can separate the bonding base plate and the attachment body in different steps for corresponding different uses, improving the flexibility and diversity of the use functions of the long-arm attachment. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] One or more embodiments are exemplarily illustrated by the pictures in the corresponding drawings. These exemplary illustrations do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements, unless otherwise stated, and the drawings in the drawings do not constitute a scale limitation.

[0025] Figure 1 is a schematic diagram of a long-arm attachment installation system in some embodiments of the present application;

[0026] Figure 2 It is a schematic structural diagram of the long-arm attachment installation system in some other embodiments of the present application;

[0027] Figure 3 It is a schematic structural diagram of the long-arm attachment installation system in some other embodiments of the present application;

[0028] Figure 4 It is a schematic structural diagram of the long-arm attachment in some embodiments of the present application;

[0029] Figure 5 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0030] Figure 6 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0031] Figure 7 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0032] Figure 8 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0033] Figure 9 It is a schematic structural diagram of the long-arm attachment installation system in some other embodiments of the present application;

[0034] Figure 10 It is a schematic structural diagram of the positioning template in some embodiments of the present application;

[0035] Figure 11 It is a schematic structural diagram of the positioning template in some embodiments of the present application;

[0036] Figure 12 It is a schematic structural diagram of the positioning template in some other embodiments of the present application;

[0037] Figure 13 It is a schematic structural diagram of the positioning template in some other embodiments of the present application;

[0038] Figure 14 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0039] Figure 15 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0040] Figure 16 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application;

[0041] Figure 17 It is a schematic structural diagram of the long-arm attachment in some other embodiments of the present application. Detailed implementation manners

[0042] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will elaborate on each implementation manner of this application in conjunction with the accompanying drawings. However, those of ordinary skill in the art can understand that in each implementation manner of this application, many technical details are presented to help readers better understand this application. However, even without these technical details and various changes and modifications based on the following implementation manners, the technical solutions claimed in this application can still be achieved. The division of the following various embodiments is for convenience of description and should not constitute any limitation to the specific implementation manners of this application. Various embodiments can be combined and cross-referenced with each other on the premise of no contradiction.

[0043] In this application, the "posterior tooth area" mentioned in each embodiment is defined according to the classification of teeth on pages 36 - 38 of the second edition of "Introduction to Stomatology" published by Peking University Medical Press, including premolars and molars, which are teeth numbered 4 - 8 in the FDI notation, and the anterior tooth area is teeth numbered 1 - 3 in the FDI notation. The teeth in the anterior tooth area include central incisors, lateral incisors, and canines. Additionally, for teeth in the deciduous tooth stage, the "posterior tooth area" is defined according to the classification of deciduous teeth on pages 40 - 41 of the second edition of "Introduction to Stomatology" published by Peking University Medical Press, including three categories: deciduous incisors, deciduous canines, and deciduous molars. Among them, deciduous incisors include deciduous central incisors and deciduous lateral incisors, and deciduous molars include the first deciduous molar and the second deciduous molar.

[0044] The shell - shaped body is provided with several cavities for accommodating multiple teeth and is divided into a lingual surface, a labial surface, a mesial surface, and a distal surface. Among them, the "lingual surface" is named according to the naming of each surface of the dental crown on pages 35 - 36 of the second edition of "Introduction to Stomatology" published by Peking University Medical Press. The labial surface and the buccal surface: for the dental crown of anterior teeth, the side close to the lips is the labial surface, and for the dental crown of posterior teeth, the side close to the cheek is the buccal surface. The lingual surface is the general term for the side of the dental crown of anterior and posterior teeth close to the tongue. The mesial surface and the distal surface are the two surfaces where the dental crown is adjacent to adjacent teeth, collectively called the proximal surface. The surface closer to the mid - face of the face is called the mesial surface, and the surface farther from the mid - face of the face is called the distal surface.

[0045] Various embodiments of the present application provide a long-arm attachment installation system, including a positioning template and a long-arm attachment detachably installed on the positioning template. The positioning template is used to paste the long-arm attachment on the tooth surface; the long-arm attachment includes an adhesive bottom plate and an attachment body directly or indirectly connected together. The adhesive bottom plate includes an adhesive surface adhered to the tooth surface and a connection surface directly or indirectly connected to the attachment body. The positioning template includes a tooth receiving cavity that wraps the tooth crown and a receiving cavity protruding from the surface of the tooth receiving cavity in the direction away from the tooth. The size and shape of the receiving cavity match the size and shape of at least part of the adhesive bottom plate of the long-arm attachment for clamping the at least part of the adhesive bottom plate. One side of the receiving cavity adjacent to the gingival end has an opening structure; after the receiving cavity is installed with the adhesive bottom plate, the attachment body protrudes from the opening structure; wherein, when the positioning template is worn on the corresponding tooth for pasting the long-arm attachment, the attachment body maintains a gap with the gingiva at the corresponding position. In the long-arm attachment installation system of the present application, not only is the operation convenient, but also the long-arm attachment can be accurately and quickly pasted on the tooth surface. Through the receiving cavity, the long-arm attachment can be installed at a predetermined position and in a predetermined orientation according to the orthodontic plan, which limits that the long-arm attachment can only be pasted on the tooth surface in a unique way. Moreover, through the control of the receiving cavity, the pasted long-arm attachment will not contact the gingiva, thereby avoiding the extrusion of the gingiva by the long-arm attachment during use.

[0046] The following describes each embodiment in the present application with reference to the drawings.

[0047] Reference Figures 1 to 3 As shown, the present application provides a long-arm attachment installation system, including a positioning template 1 and a long-arm attachment 2 detachably installed on the positioning template 1. The positioning template 1 is used to paste the long-arm attachment 2 on the tooth surface. The long-arm attachment 2 includes an adhesive bottom plate 21 and an attachment body 22 directly or indirectly connected together. The adhesive bottom plate 21 includes an adhesive surface adhered to the tooth surface and a connection surface directly or indirectly connected to the attachment body 22. The positioning template 1 includes a tooth receiving cavity 11 that wraps the tooth crown and a receiving cavity 111 protruding from the surface of the tooth receiving cavity 11 in the direction away from the tooth. There are multiple tooth receiving cavities 11. Reference Figure 1 And Figure 2As shown, it can wrap part of the teeth or the entire dentition. For example, the positioning template 1 is used for attaching accessories to the entire dentition, and can be the attachment of multiple long-arm accessories 2 and / or the pasting of resin accessories. The size and shape of the accommodating cavity 111 match the size and shape of at least part of the bonding base plate 21 of the long-arm accessory 2 for clamping at least part of the bonding base plate 21. One side of the accommodating cavity 111 adjacent to the gingival end has an opening structure. Here, the side of the gingival end means the side of the accommodating cavity 111 adjacent to the gingiva when the positioning template 1 is worn on the tooth crown. After the accommodating cavity 111 and the bonding base plate 21 are installed, the accessory body 22 protrudes from the opening structure 111a. Among them, when the positioning template 1 is worn on the corresponding tooth for pasting the long-arm accessory 2, a gap is maintained between the accessory body 22 and the gingiva at the corresponding position. The positioning template 1 may include multiple accommodating cavities 111, and each accommodating cavity 111 corresponds to a long-arm accessory respectively.

[0048] A preferred way, referring to Figure 3 As shown, the side of the accommodating cavity 111 adjacent to the gingiva is a completely open structure 111a. The advantage of this design is that when the long-arm accessory 2 is completely pasted on the tooth surface and the positioning template 1 is removed from the tooth, the completely open structure 111a allows the positioning template 1 to have no obstruction in the removal direction, making the operation convenient and simple.

[0049] Another preferred way, the clamping method between the accommodating cavity 111 and at least part of the bonding base plate 21 can be an interference fit between the accommodating cavity 111 and at least part of the bonding base plate 21. Through the accommodating cavity 111, the long-arm accessory 2 can be installed at a predetermined position and in a predetermined orientation according to the orthodontic plan, which limits that the long-arm accessory 2 can only be pasted on the tooth surface in a unique way. The clamping of the accommodating cavity 111 and at least part of the bonding base plate 21 can accurately control the orientation and position of the long-arm accessory 2. Moreover, the long-arm accessory 2 after pasting will not come into contact with the gingiva through the control of the accommodating cavity 111, thus avoiding the extrusion of the gingiva by the long-arm accessory 2 during use.

[0050] The long-arm attachment 2 in each embodiment of the present application is a prefabricated standard part, obtained by 3D printing or injection molding, and can be made of ceramic or metal materials. The bonding base plate 21 and the attachment body 22 can be integrally formed or a split structure, and are assembled together in a detachable manner. The invisible orthodontic process will be divided into multiple orthodontic stages. Therefore, when the long-arm attachment 2 is used in the invisible orthodontic process, the split long-arm attachment 2 can have different functions corresponding to different orthodontic stages. For example, when it is necessary to hook an elastic member on the long-arm attachment 2, the attachment body 22 can be kept assembled with the bonding base plate 21. At the end of this stage, the bonding base plate 21 does not need to be separated from the tooth surface. The attachment body 22 can be disassembled from the bonding base plate 21, and the bonding base plate 21 is retained on the tooth surface. The bonding base plate 21 is used as a force application attachment or a retention attachment in other orthodontic steps. In this case, referring to Figure 4 As shown, the bonding base plate 21 needs to have a sufficient thickness in the buccolingual / labiolingual direction to ensure the wrapping of the invisible orthodontic appliance around the bonding base plate 21, so as to realize the interaction between the invisible orthodontic appliance and the bonding base plate 21 and transmit the orthodontic force to the tooth to which the bonding base plate 21 is adhered. However, the thickness of the bonding base plate 21 cannot be too large, as an excessive thickness will affect the orthodontic comfort. Therefore, the thickness H of the bonding base plate 21 is between 7 mm and 35 mm. Further preferably, the bonding base plate 21 is integrally in the shape of a cuboid or a frustum of a pyramid. The advantage of such a design is that the cuboid or the frustum of a pyramid has force-bearing surfaces for forming various movements, and the cuboid or the frustum of a pyramid has stronger versatility and can cooperate with the designs of various tooth movement forms. In other embodiments, the bonding base plate of the long-arm attachment can also be a bracket for cooperating with an arch wire, or a bracket that is simultaneously used as an attachment in invisible orthodontics and a bracket in fixed orthodontics. In this case, preferably, the thickness of the bonding base plate is between 15 mm and 35 mm. Such a thickness design can provide sufficient space for setting slots for placing the arch wire, and at the same time ensure the comfort in the oral cavity.

[0051] Referring to Figure 5As shown, the detachable connection between the attachment body 22 and the bonding base plate 21 is a threaded connection. The connection surface 212 on the attachment body 22 and the bonding base plate 21 is the surface adjacent to the bonding surface 211 on the bonding base plate 21. That is, after bonding to the upper tooth surface, the connection surface 212 is the surface adjacent to the gum. The ascending direction X of the helix of the threaded connection is the long axis direction of the attachment body 22. The advantage of this design is that it is convenient for the bonding base plate 21 to be detachably connected to the attachment body 22 after being pasted on the tooth surface, and in this case, the designed threaded connection method does not affect the use of the attachment body 22 as a traction hook. Specifically, the traction direction is perpendicular to the ascending direction of the helix. Therefore, during the use of the attachment body 22 as a traction, the pulling force received will not cause the threaded connection to rotate. In this embodiment, the connection strength of the threaded connection between the attachment body 22 and the bonding base plate 21 is high, capable of withstanding a large pulling force, and is convenient for disassembly and installation, facilitating the clinical operation of doctors.

[0052] In some embodiments, referring to Figure 6 and Figure 7 as shown, the attachment body 22 can be directly or indirectly connected to the bonding base plate 21. The direct connection includes integral molding or split connection of the attachment body 22 and the bonding base plate 21. Referring to Figure 6 as shown, the connection surface 212 where the attachment body 22 is connected to the bonding base plate 21 is arranged adjacent to the bonding surface 211 of the bonding base plate 21. In this case, the accommodating cavity 111 in the long-arm attachment system firmly holds all of the bonding base plates 21.

[0053] In some embodiments, referring to Figure 7 and Figure 8 as shown, in order to enhance the connection strength between the attachment body 22 and the base plate, the attachment body 22 is connected to the connection surface 212 through a fixing portion 23. In this case, the bonding surface 211 and the connection surface 212 are arranged opposite to each other. The fixing portion 23 and the attachment body 22 are located on one side of the transverse axis Y of the connection surface 212. The transverse axis Y of the connection surface 212 in each embodiment of the present application is a virtual line that divides the connection surface 212 into two equal parts horizontally when the long-arm attachment 2 is pasted on the tooth surface. When the bonding surface 211 and the connection surface 212 are arranged opposite to each other, the accommodating cavity 111 firmly holds a part of the bonding base plate 21, and this part of the bonding base plate 21 is the part that does not include the fixing portion 23. If the accommodating cavity 111 wraps the fixing portion 23, it will affect the difficulty of detaching the positioning template 1 from the tooth after pasting.

[0054] In some embodiments, referring to Figure 9As shown, in the embodiment where the bonding surface 211 and the connecting surface 212 of the bonding base plate 21 are oppositely arranged and the fixing portion 23 is arranged on the connecting surface 212, the position of the far tooth surface of the accommodating cavity 111 corresponding to the fixing portion 23 is a hollow channel 111b. That is to say, the design of the hollow channel enables the accommodating cavity 111 not to wrap the fixing portion 23 in the separating direction during the process of the positioning template 1 separating from the tooth, thereby reducing the difficulty of the positioning template 1 separating from the tooth.

[0055] Furthermore, the hollow channel at the position of the far tooth surface of the accommodating cavity 111 corresponding to the fixing portion 23 will reduce the wrapping of the accommodating cavity 111 around the bonding base plate 21, which is likely to affect the control of the accommodating cavity 111 over the long arm attachment 2. In some embodiments, in order to avoid the above situation, the edge of the hollow channel and the edge of the fixing portion 23 are in a clamping fit. Specifically, an interference fit may exist between the edge of the hollow channel and the edge of the fixing portion 23, and the hollow channel forms a clamping force on the fixing portion 23 in the mesiodistal direction. The advantage of such a design is that it can not only improve the control force of the accommodating cavity 111 over the long arm attachment 2, but also reduce the difficulty of the positioning template 1 separating from the tooth after use.

[0056] In some embodiments, referring to Figure 10 As shown, the positioning template 1 further includes a gingival accommodating cavity 112 extending from one end of the opening structure 111a of the accommodating cavity 111 towards the gingival direction, and the gingival accommodating cavity 112 is used to accommodate the attachment body 22. The gingival accommodating cavity 112 can further limit the movement of the attachment body 22 during the bonding process in the mesiodistal direction, realizing the precise control of the bonding position and bonding direction of the long arm attachment 2 by the overall accommodating cavity 111 and the gingival accommodating cavity 112 during the bonding process. In addition, the design of the gingival accommodating cavity 112 can also avoid problems such as the long arm attachment 2 being offset due to the collision of other objects with the attachment body 22 during the bonding process.

[0057] In some embodiments, referring to Figure 11 As shown, in order to further enhance the stability of the gingival accommodating cavity 112, an extension portion 12 for carrying the gingival accommodating cavity 112 extends from the tooth receiving cavity 11 corresponding to the accommodating cavity 111 and the tooth receiving cavity 11 adjacent to the accommodating cavity 111 towards the gingival side. In order to reduce the possibility of the attachment body 22 contacting the gingiva, the extension portion 12, which serves as the carrier of the gingival accommodating cavity 112, also needs to have a gap between the surface adjacent to the gingiva of the extension portion 12 and the gingiva after the positioning template 1 is worn on the tooth.

[0058] In some embodiments, referring to Figure 12As shown, a fracture line 3 with a weak connection is provided in the vertical direction on the distal tooth surface of the accommodation cavity 111. When the positioning template 1 needs to be detached from the tooth after the long-arm attachment 2 is bonded, in order not to affect the bonding effect, reduce the collision with the long-arm attachment 2 during the detachment process, and lower the detachment difficulty, the fracture line 3 provided in the vertical direction on the distal tooth surface of the accommodation cavity 111 can be torn, and then the clinician can break off the separated accommodation cavity 111 from the tooth at the break. In some other embodiments, refer to Figure 13 As shown, the gingival accommodation cavity 112 is also provided with a fracture line 3 extending from the distal tooth surface of the accommodation cavity 111 to the distal tooth surface of the gingival accommodation cavity 112. And, similarly, after the long-arm attachment 2 is bonded, the clinician can break off the separated accommodation cavity 111 and the gingival accommodation cavity 112 from the tooth at the break, avoiding the collision with the long-arm attachment 2 during the detachment process, reducing the detachment difficulty of the positioning template 1, and increasing the bonding accuracy of the long-arm attachment 2.

[0059] In some embodiments, in order to meet different traction requirements, when the attachment body 22 is used as a traction hook, it has at least two hook grooves 24. Refer to Figure 14 As shown, the two hook grooves 24 can be arranged on the same side of the long axis X of the long-arm attachment; refer to Figure 15 As shown, the two hook grooves 24 can also be symmetrically arranged with respect to the long axis X of the long-arm attachment, that is, the traction directions of the two hook grooves 24 are opposite, and the stretching columns forming the hook grooves 24 are perpendicular to the long axis of the long-arm attachment.

[0060] Of course, for some cases of intermaxillary traction, refer to Figure 16 As shown, the stretching column 241 of the hook groove 24 on the attachment body 22 is arranged at an acute angle α with the long axis X of the long-arm attachment, and the range of the acute angle α is greater than or equal to 30° and less than 90°. The advantage of this design is that during the intermaxillary traction process, the stretching column can better avoid the situation that the elastic member falls off from the hook groove 24.

[0061] In some cases, the long-arm attachment 2 can be replaced with other devices used in the orthodontic process in addition to being a traction hook. Some structures of these devices will be at the gingival position during use. These devices can be used in combination with brackets and arch wires during fixed orthodontics. Refer to Figure 17 As shown, the end of the attachment body corresponding to the gingiva can be a hollow tube 242 for placing the arch wire.

[0062] It should be noted that, without contradiction, the above embodiments can be freely combined as needed to form different new implementation schemes, and the implementation schemes formed by such combinations are all within the protection scope of the present utility model. To save the space of the application text, it will not be elaborated here.

[0063] The above are only the preferred embodiments of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and refinements can be made, and these improvements and refinements should also be regarded as the protection scope of the present utility model.

[0064] Similarly, the above are only the specific embodiments of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model can easily think of changes or substitutions, which should all be covered by the protection scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claimed rights.

Claims

1. A long arm attachment mounting system, characterized in that: It comprises a positioning template and a long arm attachment detachably mounted with the positioning template, the positioning template is used to stick the long arm attachment to the tooth surface; the long arm attachment comprises a bonding base plate and an attachment body directly or indirectly connected together, the bonding base plate comprises a bonding surface bonded to the tooth surface and a connecting surface directly or indirectly connected to the attachment body, the positioning template comprises a tooth receiving cavity wrapping a tooth crown and a receiving cavity protruding from the tooth receiving cavity surface toward the distal tooth direction, the size and shape of the receiving cavity matches the size and shape of at least part of the bonding base plate of the long arm attachment for fixing at least part of the bonding base plate, and the side of the receiving cavity adjacent to the gingival end has an opening structure; after the accommodating cavity is installed with the bonding base plate, the attachment body protrudes out of the opening structure; wherein, when the positioning template is worn on the corresponding tooth for sticking the long arm attachment, the attachment body maintains a gap with the gums at the corresponding position.

2. The long arm attachment mounting system according to claim 1, characterized in that: The bonding surface is arranged adjacent to the connecting surface, and all of the bonding bottom plates are fixed in the accommodating cavity.

3. The long arm attachment mounting system according to claim 2, characterized in that: The bonding surface and the connecting surface are arranged opposite to each other.

4. The long arm attachment mounting system according to claim 3, characterized in that: The accessory body is connected to the connection surface via a fixing portion.

5. The long arm attachment mounting system according to claim 4, characterized in that: The fixing portion and the attachment body are located on one side of the transverse axis of the connecting surface.

6. The long arm attachment mounting system according to claim 4, characterized in that: The position of the distal tooth surface of the accommodating cavity corresponding to the fixing portion is a hollow channel.

7. The long arm attachment mounting system according to claim 6, characterized in that: The edge of the hollow channel and the edge of the fixing portion are in a clamping fit.

8. The long arm attachment mounting system according to claim 1, characterized in that: The positioning template also includes a gum accommodating cavity extending from one end of the accommodating cavity opening structure toward the gum direction, and the gum accommodating cavity is used to accommodate the accessory body.

9. The long arm attachment mounting system according to claim 8, characterized in that: The tooth receiving cavity where the accommodating cavity is located and the adjacent tooth receiving cavity extend toward the gum to form an extension part for supporting the gum accommodating cavity.

10. The long arm attachment mounting system according to any one of claims 1 to 9, characterized in that: A weakly connected fracture line is provided on the distal tooth surface of the accommodating cavity along the vertical direction.

11. The long arm attachment mounting system according to any one of claims 1 to 9, characterized in that: The thickness of the bonding base plate is between 7mm and 35mm.

12. The long arm attachment mounting system according to claim 11, characterized in that: The accessory body and the bonding base plate are detachably connected.

13. The long arm attachment mounting system according to claim 11, characterized in that: The detachable connection is a threaded connection, and the ascending direction of the helix is ​​the long axis direction of the accessory body.

14. The long arm attachment mounting system according to any one of claims 1 to 9, characterized in that: The bonding bottom plate is in the shape of a rectangular parallelepiped or a trapezoid as a whole.

15. The long arm attachment mounting system according to any one of claims 1 to 9, characterized in that: The attachment body has at least two hook grooves.

16. The long arm attachment mounting system according to claim 15, characterized in that: The pulling directions of the at least two hook grooves are opposite.

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