Shell-shaped appliance and appliance set comprising same

Abstract

The utility model provides a shell-shaped appliance and an appliance set comprising the same, the shell-shaped appliance comprises an appliance body for accommodating teeth, the surface of the appliance body facing the tongue side and / or the cheek side is provided with a protruding part, and the protruding part is matched with an external appliance in shape and is used for being detachably connected with the external appliance; the protruding part comprises a gingival margin end and an extending tail end in the horizontal direction, a first connecting line is arranged between the gingival margin end and the extending tail end, and the included angle between the tangent line of the first connecting line and the horizontal direction is not larger than 80 degrees and not smaller than-20 degrees. According to the orthodontic appliance, the orthodontic appliance body can be conveniently and detachably connected with the external appliance through the convex part, so that when one of the orthodontic appliance body and the external appliance is damaged, the orthodontic appliance can be normally used only by replacing the damaged orthodontic appliance body or the damaged external appliance, and the use cost is reduced. In addition, by adopting the structural form, the connection between the external instrument and the appliance body is facilitated, and the external instrument is prevented from being separated from the appliance body.

Description

Technical Field

[0001] This utility model relates to a shell-shaped orthodontic appliance and an orthodontic appliance set containing the shell-shaped orthodontic appliance. Background Technology

[0002] In the field of orthodontics, clear aligners are becoming increasingly popular. However, due to limitations in materials and other factors, clear aligners are often restricted in certain treatment scenarios. For example, in treatments involving occlusal pads to open the bite, the aligners need to withstand significant biting forces, which the clear aligners themselves often cannot bear. Similarly, in arch expansion treatments, clear aligners often cannot provide sufficient expansion force, requiring the use of external instruments in conjunction. Orthodontic appliances are products that need to be replaced periodically, but currently, the connection between the aligners and external instruments is usually fixed. When the aligners need to be replaced, the external instruments also need to be replaced, increasing the cost of use. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the defect that the fixed connection between the orthodontic appliance and the external device in the prior art increases the cost of use, and to provide a shell-shaped orthodontic appliance and an orthodontic appliance set containing the shell-shaped orthodontic appliance.

[0004] The present invention solves the above-mentioned technical problems through the following technical solution:

[0005] This utility model discloses a shell-shaped orthodontic appliance, which includes an appliance body for accommodating teeth. The surface of the appliance body facing the lingual side and / or buccal side has a protrusion, which is adapted to the shape of an external instrument for detachable connection with the external instrument.

[0006] The protrusion includes a gingival margin end and a horizontally extending end. A first line connects the gingival margin end and the extended end. The angle between the tangent of the first line and the horizontal direction is not greater than 80° and not less than -20°.

[0007] In this design, the protruding portion allows for easy detachable connection between the orthodontic appliance body and the external device. This means that if either the appliance body or the external device is damaged, only the damaged appliance body or external device needs to be replaced, restoring normal operation and reducing operating costs. Furthermore, this structural design facilitates the connection between the external device and the appliance body, preventing detachment and increasing the securing force between them, thus improving the stability and reliability of the connection.

[0008] Preferably, the angle between the tangent of the first connecting line and the horizontal direction is not greater than 30° and not less than 0°.

[0009] In this solution, the above-mentioned structural form is adopted, which further improves the clamping force between the external instrument and the orthodontic appliance body, thereby further improving the stability and reliability of the connection between the external instrument and the orthodontic appliance body.

[0010] Preferably, the protrusion further includes a tooth cutting edge, and a second line connects the tooth cutting edge and the extended end.

[0011] The angle between the tangent of the second line and the horizontal direction is not greater than 80° and not less than 0°.

[0012] In this solution, the above-mentioned structural form is adopted, which allows the protrusion to gradually expand the external instrument during installation, so that the external instrument can be smoothly installed in place during the process of fitting with the orthodontic appliance body, thus facilitating the installation of the external instrument.

[0013] Preferably, the angle between the tangent of the second line and the horizontal direction is not greater than 70° and not less than 30°.

[0014] The above-mentioned structural form is adopted in this solution, which further facilitates the installation of external instruments.

[0015] Preferably, the height of the protrusion is 20% to 80% of the height of the tooth.

[0016] In this solution, the above-mentioned structural form is adopted, which facilitates the cooperation between the appliance body and external instruments, while avoiding excessive height of the protrusion that would affect the chewing function of the teeth.

[0017] Preferably, the protrusion is formed by the portion of the orthodontic body surface facing the tongue and / or cheek in a direction away from the orthodontic body.

[0018] In this solution, the above-mentioned structural form is adopted. When the appliance body is worn on the teeth, the cavitation structure of the protrusion can form a cavity with the teeth, and the cavity can deform when squeezed, which facilitates the cooperation between the external instrument and the protrusion.

[0019] Preferably, the distance between the extended end and the tooth is not greater than 3 mm and not less than 0.3 mm.

[0020] In this solution, the above-mentioned structural form is adopted so that there is a horizontal difference in height between the orthodontic appliance body and the teeth at the location of the protrusion, so that when the orthodontic appliance body is worn, the orthodontic appliance body and the teeth generate a vertical locking force, which facilitates the wearing of the orthodontic appliance body.

[0021] Preferably, the distance between the extended end and the tooth is not greater than 1.5 mm and not less than 0.5 mm.

[0022] In this solution, the above-mentioned structural form is adopted, which further facilitates the wearing of the orthodontic appliance.

[0023] Preferably, the surface of the tooth facing the protrusion is connected to a protrusion structure, the protrusion being used to accommodate the protrusion structure.

[0024] In this design, the above-mentioned structural form increases the connection area between the orthodontic appliance and external instruments, thereby improving the stability of the fit between the teeth and the orthodontic appliance.

[0025] This utility model also discloses an orthodontic appliance set, the orthodontic appliance set including an external instrument and a shell-shaped orthodontic appliance as described in any of the above claims, the external instrument being adapted to the shape of the protrusion for detachable connection to the protrusion.

[0026] In this solution, a shell-shaped orthodontic appliance is applied to the orthodontic appliance set. This allows for easy detachable connection between the appliance body and external instruments via protrusions. Consequently, if either the appliance body or the external instrument is damaged, only the damaged appliance body or external instrument needs to be replaced, reducing operating costs. Furthermore, this structural design facilitates the connection between the external instrument and the appliance body, preventing detachment and increasing the securing force between them, thus improving the stability and reliability of the connection.

[0027] The positive and progressive effects of this utility model are as follows:

[0028] The protruding portion allows for easy detachable connection between the orthodontic appliance and external instruments. This means that if either the appliance or the external instrument is damaged, only the damaged appliance or external instrument needs to be replaced, reducing operating costs. Furthermore, this structural design facilitates the connection between the external instrument and the appliance, preventing detachment and increasing the securing force between them, thus improving the stability and reliability of the connection. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the shell-shaped orthodontic appliance in conjunction with teeth according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the shell-shaped orthodontic appliance and the protruding structure in an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of the structure of the orthodontic appliance set and the bow expansion device in accordance with an embodiment of the present invention.

[0032] Figure 4 This is a schematic diagram (I) of the structure of the orthodontic appliance set and the jaw pad in accordance with an embodiment of the present invention.

[0033] Figure 5 This is a schematic diagram (II) of the structure of the orthodontic kit and jaw pad in accordance with an embodiment of the present invention.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1000 sets of orthodontic appliances

[0036] Shell-shaped orthodontic appliance 100

[0037] Orthodontic appliance body 1

[0038] Protrusion 2

[0039] 21 Gingival margin

[0040] Extended end 22

[0041] First Connection 23

[0042] Tooth incisal edge 24

[0043] Second connection 25

[0044] External instruments 200

[0045] Bow-expanding device 2001

[0046] Jaw pad 2002

[0047] 300 raised structure

[0048] Teeth 400 Detailed Implementation

[0049] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0050] like Figures 1 to 5As shown, this embodiment provides a shell-shaped orthodontic appliance 100, which includes an appliance body 1 for accommodating teeth 400. The protrusions 2 on the appliance body 1 can be positioned in several ways: First, the protrusion 2 is located on the lingual surface of the appliance body 1; second, the protrusion 2 is located on the buccal surface of the appliance body 1; third, the protrusions 2 are located on both the lingual and buccal surfaces of the appliance body 1. Each protrusion 2 includes a gingival margin end 21 and a horizontally extending end 22. A first connecting line 23 connects the gingival margin end 21 and the extending end 22. The angle between the tangent of the first connecting line 23 and the horizontal direction is not greater than 80° and not less than -20°. Specifically, the protrusion 2 allows for easy detachable connection between the orthodontic appliance body 1 and the external instrument 200. This means that if either the orthodontic appliance body 1 or the external instrument 200 is damaged, only the damaged orthodontic appliance body 1 or external instrument 200 needs to be replaced for normal use, reducing operating costs. Furthermore, this structural design facilitates the connection between the external instrument 200 and the orthodontic appliance body 1, preventing detachment and increasing the securing force between them, thus improving the stability and reliability of the connection.

[0051] It needs to be specifically explained that, such as Figures 3 to 5 As shown, the protrusion 2 can be located on the lingual side, buccal side, or both sides of the orthodontic appliance body 1, depending on the connection position of the external device 200. Specifically, when the shell-shaped orthodontic appliance 100 needs to be connected to the arch expander 2001, the protrusion 2 can be located only on the lingual side or buccal side of the orthodontic appliance body 1; when the shell-shaped orthodontic appliance 100 needs to be connected to the jaw pad 2002, the surfaces of the orthodontic appliance body 1 facing the lingual and buccal sides are provided with protrusions 2, and the jaw pad 2002 is connected to both protrusions 2 respectively, improving the stability and reliability of the connection between the jaw pad 2002 and the orthodontic appliance body 1.

[0052] In practical use, the gingival margin 21 mentioned above refers to the end of the protrusion 2 closest to the gingiva. Additionally, the first connecting line 23 mentioned above can be a straight line, an arc, or a curve, etc.

[0053] In this embodiment, as Figure 1 and Figure 2 As shown, the angle between the tangent of the first connecting line 23 and the horizontal direction is preferably no greater than 30° and no less than 0°, thereby further improving the clamping force between the external instrument 200 and the orthodontic body 1, and further improving the stability and reliability of the connection between the external instrument 200 and the orthodontic body 1.

[0054] like Figure 1 and Figure 2 As shown, the protrusion 2 also includes a tooth incisal end 24, and a second connecting line 25 is formed between the tooth incisal end 24 and the extended end 22; the angle between the tangent of the second connecting line 25 and the horizontal direction is not greater than 80° and not less than 0°. With this structural form, when the external instrument 200 is installed with the protrusion 2, the protrusion 2 can gradually expand the external instrument 200, thereby allowing the external instrument 200 to be smoothly installed into place during the mating process with the orthodontic appliance body 1, facilitating the installation of the external instrument 200.

[0055] In this embodiment, the aforementioned tooth incisor 24 is the end of the protrusion 2 closest to the tooth incisor 24. Furthermore, in this embodiment, the first connecting line 23 and the second connecting line 25 are connected at the extended end 22 to form the protrusion 2.

[0056] Preferably, the angle between the tangent of the second connecting line 25 and the horizontal direction is not greater than 70° and not less than 30°, thereby further facilitating the installation of the external instrument 200.

[0057] In this embodiment, both the surface where the protrusion 2 mates with the external instrument 200 and the surface where the external instrument 200 mates with the protrusion 2 are curved surfaces. In other words, in this embodiment, both the first connecting line 23 and the second connecting line 25 are arcs.

[0058] In addition, in this embodiment, the external instrument 200 can at least partially cover the buccal and lingual sides of the tooth 400, and has a groove on the surface corresponding to the protrusion 2 for engaging with the protrusion 2. In other embodiments, the shapes of the surfaces of the protrusion 2 and the external instrument 200 engaging with each other can be adjusted according to actual needs, and are not limited here.

[0059] The height of the protrusion 2 is 20% to 80% of the height of the tooth 400. With the above structure, it is convenient for the appliance body 1 to cooperate with the external instrument 200, while avoiding the protrusion 2 being too high and affecting the chewing function of the tooth 400.

[0060] It should be specifically noted that when the protrusion 2 is correspondingly disposed on the surface of the tooth 400, the height of the protrusion 2 is 20% to 80% of the height of the tooth 400. When the protrusion 2 is correspondingly disposed between two adjacent teeth 400, the height of the protrusion 2 is 20% to 80% of the average height of the two adjacent teeth 400.

[0061] The protrusion 2 can be implemented in several ways: First, the portion of the orthodontic body 1 facing the tongue protrudes away from the orthodontic body 1 to form the protrusion 2; second, the portion of the orthodontic body 1 facing the cheek protrudes away from the orthodontic body 1 to form the protrusion 2; third, both the portion of the orthodontic body 1 facing the tongue and the portion of the orthodontic body 1 facing the cheek protrude away from the orthodontic body 1 to form the protrusion 2. Figures 1 to 5 As shown, in all three embodiments described above, the protrusion 2 has a cavitation structure. When the orthodontic appliance body 1 is worn on the teeth 400, a cavity can be formed between the cavitation structure of the protrusion 2 and the teeth 400, and the cavity can deform when compressed, which facilitates the cooperation between the external instrument 200 and the protrusion 2.

[0062] The distance between the extended end 22 and the tooth 400 is not greater than 3mm and not less than 0.3mm. This structural form creates a horizontal height difference between the appliance body 1 and the tooth 400 at the location of the protrusion 2, resulting in a vertical locking force between the appliance body 1 and the tooth 400 when the appliance body 1 is worn, thus facilitating the wearing of the appliance body 1.

[0063] Preferably, the distance between the extended end 22 and the tooth 400 is not greater than 1.5 mm and not less than 0.5 mm, thereby further facilitating the wearing of the orthodontic appliance body 1 and the tooth 400.

[0064] like Figure 2 and Figure 5 As shown, a protruding structure 300 is connected to the surface of the tooth 400 facing the protrusion 2. The protrusion 2 is used to accommodate the protruding structure 300, which increases the connection area between the orthodontic appliance body 1 and the external instrument 200, thereby improving the stability of the fit between the tooth 400 and the orthodontic appliance body 1.

[0065] In this embodiment, the protrusion structure 300 is formed on the tooth 400 by resin molding.

[0066] This embodiment also provides an orthodontic appliance kit 1000, which includes an external instrument 200 and a shell-shaped orthodontic appliance 100. The external instrument 200 is adapted to fit the shape of the protrusion 2 for detachable connection. Specifically, by applying the shell-shaped orthodontic appliance 100 to the orthodontic appliance kit 1000, the orthodontic appliance body 1 can be easily detachably connected to the external instrument 200 through the protrusion 2. This means that if either the orthodontic appliance body 1 or the external instrument 200 is damaged, only the damaged orthodontic appliance body 1 or external instrument 200 needs to be replaced for normal use, reducing operating costs. Furthermore, the above structural design facilitates the connection between the external instrument 200 and the orthodontic appliance body 1, preventing detachment and increasing the locking force between them, thus improving the stability and reliability of the connection.

[0067] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A shell-shaped aligner comprising an aligner body for accommodating teeth, characterized in that, The surface of the appliance body facing the lingual side and / or the buccal side is provided with a protrusion, which is adapted to the shape of an external instrument for detachable connection with the external instrument. The protrusion comprises a gum margin end and an extended end in the horizontal direction, and a first connecting line between the gum margin end and the extended end, and a tangent of the first connecting line and the horizontal direction forms an angle not greater than 80° and not less than -20°.

2. The shell aligner of claim 1, wherein, The tangent of the first connecting line and the horizontal direction forms an angle not greater than 30° and not less than 0°.

3. The shell aligner of claim 1, wherein, The protrusion further comprises a tooth incisal end, and a second connecting line between the tooth incisal end and the extended end. The tangent of the second connecting line and the horizontal direction forms an angle not greater than 80° and not less than 0°.

4. The shell aligner of claim 3, wherein, The tangent of the second connecting line and the horizontal direction forms an angle not greater than 70° and not less than 30°.

5. The shell aligner of claim 1, wherein, The height of the protrusion is 20% to 80% of the height of the tooth.

6. The shell aligner of claim 1, wherein, The part of the surface of the appliance body facing the lingual side and / or the buccal side protrudes in the direction away from the appliance body to form the protrusion.

7. The shell aligner of claim 6, wherein, The distance between the extended end and the tooth is not greater than 3mm and not less than 0.3mm.

8. The shell aligner of claim 7, wherein, The distance between the extended end and the tooth is not greater than 1.5mm and not less than 0.5mm.

9. The shell aligner of claim 8, wherein, The surface of the tooth facing the protrusion is connected with a protruding structure, and the protrusion is used for accommodating the protruding structure.

10. A set of aligners, characterized in that, The appliance set comprises an external instrument and the shell-shaped appliance according to any one of claims 1-9, and the external instrument is used for adapting to the shape of the protrusion for detachable connection with the protrusion.

Images