Shell-shaped appliance

Abstract

The utility model provides a shell-shaped appliance which comprises an appliance body and further comprises a first reinforcing film, and the first reinforcing film is connected to at least part of the wall face, facing the tongue side, of the appliance body. By adopting the structural form, direct contact between the first reinforcing film and oral mucosa is avoided, so that stimulation and friction of the first reinforcing film to oral soft tissue are reduced, the probability of mucosa injury or ulcer is reduced, and the use experience of customers is improved. Besides, the first reinforcing film is connected to the wall surface, facing the tongue side, of the shell-shaped appliance, so that the force application point of the first reinforcing film is closer to the impedance center of the teeth, the torque and the moving direction of the teeth can be controlled, and the correction speed and the correction effect are improved.

Description

Technical Field

[0001] This utility model relates to the field of orthodontics, and in particular to a shell-shaped orthodontic appliance. Background Technology

[0002] Shell-type orthodontic appliances are advanced dental devices consisting of multiple appliance bodies for accommodating the upper or lower teeth. During orthodontic treatment, shell-type appliances can experience localized strength deficiencies. For example, the product in the mandibular region often exhibits large cavitation features, which must withstand significant occlusal forces and are frequently prone to collapse. Similarly, the occlusal pad also features large cavitation features and, like other parts of the appliance, is prone to collapse due to the same occlusal forces. When a shell-type appliance collapses, it cannot properly apply the intended corrective force to the teeth, thus affecting treatment outcomes. Furthermore, collapse can damage the structural integrity of the appliance, necessitating replacement, which not only increases treatment costs but may also prolong treatment time.

[0003] In existing technologies, when reinforcing shell-shaped orthodontic appliances, the lip- and buccal-facing walls of the appliance are reinforced. However, when reinforcing the buccal-facing walls, frequent contact between the buccal side and the oral mucosa can cause friction between the buccal side and the shell-shaped appliance, leading to mucosal damage or ulcers. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the defect of existing technology in which strengthening the cheek-facing wall of shell-shaped orthodontic appliances leads to mucosal damage or ulceration, and to provide a shell-shaped orthodontic appliance.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model discloses a shell-shaped orthodontic appliance, which includes an appliance body and a first reinforcing membrane connected to at least a portion of the wall surface of the appliance body facing the tongue.

[0007] In this solution, the aforementioned structural form avoids direct contact between the first reinforcing membrane and the oral mucosa, thereby reducing irritation and friction of the first reinforcing membrane on the oral soft tissues, lowering the probability of mucosal damage or ulceration, and improving the user experience. Furthermore, by connecting the first reinforcing membrane to the lingual side of the shell-shaped appliance, the force application point of the first reinforcing membrane is closer to the resistance center of the teeth, thus enabling control over the torque and direction of tooth movement, improving orthodontic speed and effectiveness.

[0008] Preferably, the first reinforcing membrane is attached to the tongue-facing wall surface in a portion of the body of the orthodontic appliance.

[0009] Strengthening areas where the shell-shaped appliance lacks strength can provide additional support, thereby increasing the local strength or rigidity of the appliance body. This allows the local area to meet the mechanical performance requirements for clinical use, making the shell-shaped appliance more stable in the oral cavity, preventing local collapse of the shell-shaped appliance, improving the orthodontic effect of the shell-shaped appliance, and reducing the cost of orthodontic treatment.

[0010] Preferably, the first reinforcing membrane is connected to at least a portion of the wall surface of the orthodontic appliance body located in the posterior tooth region facing the lingual side.

[0011] In this design, the aforementioned structural form strengthens the shell-shaped orthodontic appliance located in the posterior tooth region, preventing it from collapsing. This improves the effectiveness of the appliance in orthodontic treatment and reduces costs. Furthermore, this design allows for more concentrated application of corrective force to the posterior teeth, increasing the efficiency of tooth movement in this area.

[0012] Preferably, the shell-shaped orthodontic appliance further includes a palatal support and a second reinforcing membrane, the palatal support being connected to the appliance body and the second reinforcing membrane being connected to at least a portion of the palatal support.

[0013] In this design, the palatal bracket's strength is enhanced by a second reinforcing membrane connecting at least a portion of it, reducing the risk of collapse and thus improving the overall stability of the shell-like appliance, particularly the structural strength of the posterior teeth region. The combination of the second reinforcing membrane and the palatal bracket helps to more effectively transfer orthodontic forces to the posterior teeth region, thereby improving the orthodontic outcome. Furthermore, the palatal bracket provides support during orthodontic treatment; therefore, this structural design better adapts to the oral cavity structure and reduces discomfort during the treatment process.

[0014] Preferably, the shell-shaped orthodontic appliance includes a reinforcing portion, the reinforcing portion having a first receiving cavity for accommodating a tooth located in the posterior tooth region, and the reinforcing portion being connected to the portion of the orthodontic appliance body located in the posterior tooth region;

[0015] The first reinforcing membrane is provided on the wall surface of the reinforcing part facing the tongue side.

[0016] In this design, the aforementioned structural form strengthens the shell-shaped orthodontic appliance located in the posterior tooth region, preventing it from collapsing. This improves the effectiveness of the appliance in orthodontic treatment and reduces costs. Furthermore, this design allows for more concentrated application of corrective force to the posterior teeth, increasing the efficiency of tooth movement in this area.

[0017] Preferably, the reinforcing part is provided with a first chin pad, the first chin pad being matched with the position of the second chin pad of the orthodontic body, and at least a portion of the first chin pad and the second chin pad are in contact.

[0018] In this design, the above-mentioned structural form is adopted, which improves the structural stability of the second jaw pad, making it more secure in the oral cavity and less prone to deformation or displacement.

[0019] Preferably, the reinforcing part and / or the surface of the orthodontic body connected to the reinforcing part is provided with a first through hole, the first through hole being used for external components to pass through.

[0020] In this solution, the above-mentioned structural form is adopted to facilitate the installation of external components.

[0021] Preferably, the reinforcing part and / or the orthodontic body are provided with a receiving cavity for receiving the fixing part, and the fixing part is provided with a second through hole for the external component to pass through;

[0022] Wherein, in the axial direction of the first through hole and / or the second through hole, at least a portion of the first through hole and the second through hole overlap.

[0023] In this design, the stability and reliability of external component installation are improved through the fixing mechanism. Furthermore, the reinforcement and / or the orthodontic appliance body has accommodating cavities to prevent interference between the reinforcement and / or the orthodontic appliance body and the fixing mechanism, thus enhancing the stability among the reinforcement, the orthodontic appliance body, and the fixing mechanism. This structural design facilitates the connection between external components and the fixing mechanism.

[0024] Preferably, the shell-shaped orthodontic appliance is further provided with a missing tooth position corresponding to the extraction position, the missing tooth position having a second receiving cavity for accommodating the extraction position, and the first reinforcing membrane is connected to at least a portion of the wall surface of the missing tooth position facing the lingual side.

[0025] In this solution, the above-mentioned structural form is adopted to prevent the orthodontic appliance body in the missing tooth position from being crushed, which is conducive to improving the effect of shell-shaped orthodontic appliances on teeth correction and reducing orthodontic costs.

[0026] Preferably, the first reinforcing membrane extends from the missing tooth position to one or two adjacent tooth positions.

[0027] In this solution, the above-mentioned structural form can provide additional support for the missing tooth position, thereby further preventing the orthodontic appliance body from being crushed, which is conducive to improving the effect of shell-shaped orthodontic appliances on tooth correction and reducing orthodontic costs.

[0028] Preferably, the first reinforcing membrane is disposed on the inner surface of the orthodontic body.

[0029] In this design, the above-mentioned structure can prevent interference between the first reinforcing membrane and the tongue, thus improving wearing comfort.

[0030] The positive and progressive effects of this utility model are as follows:

[0031] By adopting the above structural design, direct contact between the first reinforcing membrane and the oral mucosa is avoided, thereby reducing the stimulation and friction of the first reinforcing membrane on the oral soft tissues, lowering the probability of mucosal damage or ulceration, and improving the user experience. Furthermore, by connecting the first reinforcing membrane to the lingual side of the shell-shaped appliance, the force application point of the first reinforcing membrane is closer to the resistance center of the tooth, thus enabling control over the torque and direction of tooth movement, improving orthodontic speed and effectiveness. Attached Figure Description

[0032] Figure 1 This is a schematic diagram (I) of the shell-shaped orthodontic appliance of Embodiment 1 of this utility model.

[0033] Figure 2 This is a schematic diagram (II) of the shell-shaped orthodontic appliance of Embodiment 1 of this utility model.

[0034] Figure 3 This is a schematic diagram (III) of the shell-shaped orthodontic appliance of Embodiment 1 of this utility model.

[0035] Figure 4 This is a partial structural schematic diagram of the shell-shaped orthodontic appliance of Embodiment 1 of this utility model.

[0036] Figure 5 This is a schematic diagram (four) of the shell-shaped orthodontic appliance of Embodiment 1 of this utility model.

[0037] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure at point A in the middle.

[0038] Figure 7 This is a schematic diagram (I) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0039] Figure 8 This is a schematic diagram (II) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0040] Figure 9 This is a schematic diagram (III) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0041] Figure 10 This is a schematic diagram (IV) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0042] Figure 11 for Figure 10 Schematic diagram of the cross-sectional structure at point B.

[0043] Figure 12 This is a schematic diagram (V) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0044] Figure 13 for Figure 12 Schematic diagram of the cross-sectional structure at point C.

[0045] Figure 14 This is a schematic diagram (VI) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0046] Figure 15 This is a schematic diagram (VII) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0047] Figure 16 This is a schematic diagram (VIII) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0048] Figure 17 This is a schematic diagram (IX) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0049] Figure 18 This is a schematic diagram (X) of the shell-shaped orthodontic appliance of Embodiment 2 of this utility model.

[0050] Figure 19 This is a schematic diagram (I) of the shell-shaped orthodontic appliance of Embodiment 3 of this utility model.

[0051] Figure 20 This is a schematic diagram (II) of the shell-shaped orthodontic appliance of Embodiment 3 of this utility model.

[0052] Figure 21 This is a schematic diagram (III) of the shell-shaped orthodontic appliance of Embodiment 3 of this utility model.

[0053] Figure 22 This is a schematic diagram (IV) of the shell-shaped orthodontic appliance of Embodiment 3 of this utility model.

[0054] Figure 23 This is a schematic diagram (V) of the shell-shaped orthodontic appliance of Embodiment 3 of this utility model.

[0055] Explanation of reference numerals in the attached figures:

[0056] Shell-shaped orthodontic appliance 100

[0057] Orthodontic appliance body 1

[0058] First reinforcing membrane 2

[0059] Palatal support 3

[0060] Second reinforcing membrane 4

[0061] Strengthening Department 5

[0062] First jaw pad 6

[0063] Second jaw pad 7

[0064] First through hole 8

[0065] 9-Cavity

[0066] Fixing part 10

[0067] Second through hole 11

[0068] Missing tooth position 12 Detailed Implementation

[0069] The present invention will be described more clearly and completely below with reference to the accompanying drawings, using a preferred embodiment.

[0070] Example 1

[0071] like Figures 1 to 6 As shown, this embodiment provides a shell-shaped orthodontic appliance 100, which includes an appliance body 1 and a first reinforcing membrane 2. The first reinforcing membrane 2 is connected to at least a portion of the wall surface of the appliance body 1 facing the lingual side. This structural design avoids direct contact between the first reinforcing membrane 2 and the oral mucosa, thereby reducing irritation and friction of the first reinforcing membrane 2 on the oral soft tissues, lowering the probability of mucosal damage or ulceration, and improving the user experience. Furthermore, connecting the first reinforcing membrane 2 to the lingual wall surface of the shell-shaped orthodontic appliance 100 allows the force application point of the first reinforcing membrane 2 to be closer to the resistance center of the teeth, thereby enabling control of the torque and direction of tooth movement, improving the speed and effectiveness of orthodontic treatment.

[0072] In this embodiment, the first reinforcing membrane 2 is connected to the lingual wall surface of a portion of the appliance body 1. By employing this structural form, reinforcement is provided at locations where the shell-shaped appliance 100 lacks strength, offering additional support and increasing the local strength or stiffness of the appliance body 1. This ensures that the local area meets the mechanical performance requirements for clinical use, thereby making the shell-shaped appliance 100 more stable in the oral cavity, preventing local collapse of the shell-shaped appliance 100, improving the orthodontic effect of the shell-shaped appliance 100, and reducing orthodontic costs.

[0073] Preferably, the first reinforcing membrane 2 can be connected to all the lingual side walls of a portion of the orthodontic body 1, thereby providing additional support for the orthodontic body 1 and further improving the structural strength and stability of the shell orthodontic appliance 100.

[0074] It should be specifically noted that the first reinforcing membrane 2 is a thin, continuous reinforcing material. It can be made of the same material as the orthodontic appliance body 1, and their material type, thickness, hardness, and elastic modulus can be the same or different. Furthermore, the first reinforcing membrane 2 and the orthodontic appliance body 1 can be connected by methods such as hot-melt bonding, adhesion, welding, or riveting, with hot-melt bonding being preferred.

[0075] In practical use, the first reinforcing membrane 2 can be disposed on the surface of the orthodontic appliance body 1, on the outer surface of the orthodontic appliance body 1, or on both the inner and outer surfaces. In this embodiment, the first reinforcing membrane 2 is disposed on the inner surface of the orthodontic appliance body 1, which can prevent the first reinforcing membrane 2 from interfering with the tongue and improve the wearing comfort. In addition, the surface of the reinforcing membrane that adheres to the teeth is flush with the surface of the orthodontic appliance body 1 that adheres to the teeth, ensuring that the adhesion between the reinforcing membrane, the orthodontic appliance body 1, and the teeth is consistent.

[0076] The first reinforcing membrane 2 is connected to at least a portion of the lingual wall surface of the appliance body 1 located in the posterior tooth region. This structural design strengthens the shell-shaped appliance 100 in the posterior tooth region, preventing it from collapsing and improving its effectiveness in orthodontic treatment, while also reducing treatment costs. Furthermore, this design allows for more concentrated application of corrective force to the posterior tooth region, improving the efficiency of tooth movement in that area.

[0077] In practical use, the posterior tooth region generally includes teeth numbered 4 to 7. Preferably, the first reinforcing membrane 2 is connected to all the lingual walls of the appliance body 1 located in the posterior tooth region, thereby providing additional support to the appliance body 1 and further improving the structural strength and stability of the shell-shaped appliance 100.

[0078] like Figure 6 As shown, the shell-shaped orthodontic appliance 100 also includes a palatal bracket 3 and a second reinforcing membrane 4. The palatal bracket 3 is connected to the appliance body 1, and the second reinforcing membrane 4 is connected to at least a portion of the palatal bracket 3. Specifically, the connection of at least a portion of the palatal bracket 3 to the second reinforcing membrane 4 increases the strength of the palatal bracket 3, reduces the risk of collapse, and thus improves the overall stability of the shell-shaped orthodontic appliance 100, particularly the structural strength of the posterior tooth region. The combination of the second reinforcing membrane 4 and the palatal bracket 3 helps to more effectively transmit orthodontic forces to the posterior tooth region, thereby improving the orthodontic effect. In addition, the palatal bracket 3 plays a supporting role during the orthodontic process; therefore, the above-mentioned structural form is conducive to better adapting to the oral structure and reducing discomfort during the orthodontic process.

[0079] In this embodiment, the second reinforcing membrane 4 is connected to the entire area of ​​the palate support 3. In other embodiments, the connection area of ​​the second reinforcing membrane 4 can be adjusted according to actual needs, and is not limited here. Furthermore, the first reinforcing membrane 2 and the second reinforcing membrane 4 are integrally formed. In other embodiments, the first reinforcing membrane 2 and the second reinforcing membrane 4 can also be separately provided, and is not limited here.

[0080] Furthermore, the second reinforcing membrane 4 is a thin, continuous reinforcing material. It can be made of the same material as the palate support 3, and their material type, thickness, hardness, and elastic modulus can be the same or different. Additionally, the second reinforcing membrane 4 and the palate support 3 can be connected by methods such as hot-melt bonding, adhesion, welding, or riveting, with hot-melt bonding being preferred.

[0081] It should be specifically noted that, in this embodiment, in the application of the shell-shaped orthodontic appliance 100 arch expansion product, the palatal and lingual regions of the shell-shaped orthodontic appliance 100 are respectively provided with a second reinforcing membrane 4 and a first reinforcing membrane 2, while no reinforcing membrane is provided on the occlusal and labial / buccal sides of the shell-shaped orthodontic appliance 100. This can improve the arch expansion force without significantly affecting the occlusal height of the teeth and the difficulty of wearing and removing them.

[0082] In specific implementation, the present invention provides some feasible implementation methods for the setting position of the first reinforcing membrane 2, but the protection scope of the present invention should not be limited to the following implementation methods.

[0083] Example 2

[0084] like Figures 7 to 18 As shown, the shell-shaped orthodontic appliance 100 includes a reinforcing section 5, which has a first receiving cavity for accommodating teeth located in the posterior tooth region. The reinforcing section 5 is connected to the portion of the appliance body 1 located in the posterior tooth region. A first reinforcing membrane 2 is provided on the lingual side of the reinforcing section 5. This structural design strengthens the shell-shaped orthodontic appliance 100 located in the posterior tooth region, preventing it from collapsing and improving the orthodontic effect while reducing treatment costs. Furthermore, this design allows for more concentrated application of corrective force to the posterior tooth region, improving the efficiency of tooth movement in this area.

[0085] In practical use, the posterior tooth region generally includes teeth number 3 to 7.

[0086] like Figures 7 to 14As shown, the reinforcing part 5 is provided with a first chin pad 6, which is positioned to match the second chin pad 7 of the orthodontic appliance body 1, and at least a portion of the first chin pad 6 and the second chin pad 7 are in contact. This structural design improves the structural stability of the second chin pad 7, making it more secure in the oral cavity and less prone to deformation or displacement.

[0087] In this embodiment, the reinforcing part 5 and the first jaw pad 6 are integrally formed. In other embodiments, the connection form between the reinforcing part 5 and the first jaw pad 6 can be adjusted according to actual needs, and no limitation is made here.

[0088] To further improve the structural stability of the second jaw pad 7, it is preferable that all areas of the first jaw pad 6 and the second jaw pad 7 are connected.

[0089] like Figures 15 to 18 As shown, the reinforcing part 5 and the orthodontic body 1 can be implemented in several ways: In the first embodiment, the reinforcing part 5 has a first through hole 8; in the second embodiment, the surface of the orthodontic body 1 connected to the reinforcing part 5 has a first through hole 8; in the third embodiment, both the reinforcing part 5 and the surface of the orthodontic body 1 connected to the reinforcing part 5 have first through holes 8. Preferably, both the reinforcing part 5 and the surface of the orthodontic body 1 connected to the reinforcing part 5 have first through holes 8, and the first through holes 8 are used for external components to pass through, thereby facilitating the installation of external components. Furthermore, it is even more preferable that the reinforcing part 5 and the orthodontic body 1 have a receiving cavity 9, which is used to receive the fixing part 10, and the fixing part 10 has a second through hole 11 for external components to pass through; wherein, in the axial direction of the first through hole 8 and the second through hole 11, at least a partial area of ​​the first through hole 8 and the second through hole 11 overlap. By adopting the above structural form, the stability and reliability of the installation of external components are improved by the fixing part 10, increasing its ability to resist high torque. In addition, the reinforcing part 5 and the orthodontic body 1 are provided with a receiving cavity 9, which can prevent interference between the reinforcing part 5 and the orthodontic body 1 and the fixing part 10, improve the stability between the reinforcing part 5, the orthodontic body 1 and the fixing part 10, and facilitate the connection between external components and the fixing part 10.

[0090] In this embodiment, the axes of the first through hole 8 and the second through hole 11 coincide. Furthermore, the orientation of the receiving cavity 9 depends on which region of the tooth the external component is connected to; in this embodiment, the orientation of the receiving cavity 9 towards the labial / buccal side is used as an example for adaptive representation.

[0091] In specific implementation, the present invention provides some feasible implementation methods for the setting position of the first reinforcing membrane 2, but the protection scope of the present invention should not be limited to the following implementation methods.

[0092] Example 3

[0093] like Figures 19 to 23 As shown, the shell-shaped orthodontic appliance 100 also has a missing tooth position 12 corresponding to the extraction location. The missing tooth position 12 has a second receiving cavity for accommodating the extraction location, and at least a portion of the lingual wall surface of the missing tooth position 12 is connected to a first reinforcing membrane 2. This structural design prevents the appliance body 1 of the missing tooth position 12 from collapsing, which helps improve the orthodontic effect of the shell-shaped orthodontic appliance 100 and reduces treatment costs.

[0094] In this embodiment, the first reinforcing membrane 2 is connected to each wall surface that forms the second receiving cavity.

[0095] The first reinforcing membrane 2 can extend from the edentulous position 12 to one or two adjacent edentulous positions. This structural form provides additional support for the edentulous position 12, further preventing the shell-shaped appliance 100 from collapsing, thus improving the orthodontic effect of the shell-shaped appliance 100 and reducing treatment costs.

[0096] 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, characterized in that, The shell-shaped aligner further comprises a first reinforcing film connected to at least part of the wall surface of the aligner body facing the lingual side.

2. The shell aligner of claim 1, wherein, The first reinforcing film is connected to at least part of the wall surface of the aligner body in the posterior region facing the lingual side.

3. The shell aligner of claim 1 or 2, wherein, The shell-shaped aligner further comprises a palatal support connected to the aligner body and a second reinforcing film connected to at least part of the palatal support.

4. The shell aligner of claim 1, wherein, The shell-shaped aligner comprises a reinforcing part provided with a first accommodating cavity for accommodating the tooth in the posterior region, and the reinforcing part is connected to the part of the aligner body in the posterior region. The wall surface of the reinforcing part facing the lingual side is provided with the first reinforcing film.

5. The shell aligner of claim 4, wherein, The reinforcing part is provided with a first jaw pad, and the first jaw pad is matched with the position of a second jaw pad on the aligner body, and at least part of the first jaw pad and the second jaw pad are in contact.

6. The shell aligner of claim 4, wherein, The surface of the reinforcing part and / or the aligner body connected to the reinforcing part is provided with a first through hole for the external component to pass through.

7. The shell aligner of claim 6, wherein, The reinforcing part and / or the aligner body is provided with a receiving cavity for accommodating a fixing part, and the fixing part is provided with a second through hole for the external component to pass through. The first through hole and the second through hole at least partially overlap in the axial direction of the first through hole and / or the second through hole.

8. The shell aligner of claim 1, wherein, The shell-shaped aligner is further provided with a tooth extraction position corresponding to a missing tooth position, and the missing tooth position is provided with a second accommodating cavity for accommodating the tooth extraction position, and at least part of the wall surface of the missing tooth position facing the lingual side is connected with the first reinforcing film.

9. The shell aligner of claim 8, wherein, The first reinforcing film is arranged from the missing tooth position to one or two tooth positions adjacent to the missing tooth position.

10. The shell aligner of claim 1, wherein, The first reinforcing film is arranged on the inner surface of the aligner body.

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