Invisible appliance with jaw pad

Abstract

The utility model relates to the technical field of orthodontic medical instruments, in particular to an invisible appliance with a jaw pad, which comprises an upper jaw appliance and a lower jaw appliance which are used for accommodating teeth, the jaw pad is arranged in a rear tooth area of the upper jaw appliance, the jaw pad is of a hollow structure protruding towards the opposite jaw direction, and the lower jaw pad is of a hollow structure protruding towards the opposite jaw direction. The jaw pad is matched with the occlusal surface of the occlusal teeth in an opposite occlusal manner; the width of the side, close to the anterior tooth end, of the jaw pad is smaller than that of the side, close to the posterior tooth end, of the jaw pad, the two side edges, in the dentition direction, of the jaw pad are each provided with a plurality of first inwards-concave structures, and the first inwards-concave structures are symmetrically arranged on the two sides of the jaw pad. According to the invisible orthodontic appliance disclosed by the utility model, the first concave structures are arranged on the two sides of the jaw pad along the arrangement direction of dentition to form reinforcing structures, so that the structural strength can be effectively enhanced, and meanwhile, the second concave structures are respectively arranged at the two ends of the jaw pad, so that the strength of the jaw pad is further improved, the occlusion strength of a tooth socket is improved, and the orthodontic effect can be effectively improved.

Description

Technical Field

[0001] This utility model belongs to the field of orthodontic medical device technology, and in particular relates to an invisible aligner with a jaw pad. Background Technology

[0002] In orthodontic treatment, occlusal adjustment is a crucial step in correcting malocclusion, improving tooth alignment, and achieving a functional occlusal relationship. Occlusal pads, as an important auxiliary device, create favorable conditions for tooth movement by raising the occlusal height or dispersing occlusal forces, thus ensuring the effectiveness of orthodontic treatment.

[0003] The jaw pads on existing invisible aligners are usually cavitation structures formed by integral molding with the shell-like body. However, the structural strength of the cavitation structure is limited, and it is easily damaged or collapsed during clinical use, thus affecting the orthodontic effect.

[0004] Therefore, while ensuring the aesthetics and comfort of invisible aligners, it is necessary to improve the mechanical strength of integrated jaw pads to ensure the effectiveness of the treatment. Utility Model Content

[0005] To address the aforementioned problems in the existing technology, this utility model provides an invisible orthodontic appliance with a chin pad.

[0006] To achieve the above objectives, this utility model provides an invisible orthodontic appliance with a occlusal pad, including an maxillary appliance and a mandibular appliance for accommodating teeth. The occlusal pad is provided in the posterior tooth area of ​​the maxillary appliance. The occlusal pad is a hollow structure that protrudes in the direction of the opposing teeth. The occlusal pad is matched with the occlusal surface of the opposing teeth in terms of relative orientation. The width of the occlusal pad on the side near the anterior teeth is smaller than the width on the side near the posterior teeth. The occlusal pad has multiple first concave structures on both sides along the dentition direction, and the first concave structures are symmetrically arranged on both sides of the occlusal pad.

[0007] Furthermore, the spacing ΔL between adjacent first concave structures on the same side of the jaw pad is in the range of 2.8mm≤ΔL≤3.2mm.

[0008] Furthermore, the minimum distance d between the first concave structures on opposite sides of the jaw pad min The range is 1.6mm≤d min ≤2.4mm.

[0009] Furthermore, the first concave structure is in the shape of an elliptical arc or a circular arc.

[0010] Furthermore, the opening width W of the first concave structure along the tooth row direction is in the range of 2.6mm≤W≤3.0mm.

[0011] Furthermore, the jaw pad has a second concave structure at both ends, and the second concave structure is in the shape of an elliptical arc or a circular arc.

[0012] Furthermore, the four corners of the jaw pad are all rounded and chamfered.

[0013] Furthermore, the length L of the occlusal pad along the dentition direction is in the range of 24mm≤L≤28mm.

[0014] Furthermore, the occlusal surface of the occlusal pad is not exactly the same as the occlusal surface area of ​​the posterior teeth of the opposing dentition.

[0015] Furthermore, the jaw pad and the maxillary appliance are integrally formed shell structures.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] The invisible aligner of this invention forms a reinforced structure by setting a first concave structure on both sides of the occlusal pad along the direction of tooth arrangement, which can effectively enhance the structural strength. At the same time, the second concave structure set at both ends of the occlusal pad further increases the strength of the occlusal pad and the occlusal strength of the aligner, which can effectively improve the orthodontic effect. Attached Figure Description

[0018] The specific embodiments of this utility model will be further explained below with reference to the accompanying drawings.

[0019] Figure 1 This is a schematic diagram of the structure of the invisible aligner with jaw pad of this utility model;

[0020] Figure 2 This is a schematic diagram of the jaw pad structure of the orthodontic appliance of this utility model.

[0021] In the diagram: 10 - Maxillary appliance; 20 - Mandibular appliance; 30 - Jaw pad; 31 - First concave structure; 32 - Second concave structure. Detailed Implementation

[0022] Combination Figure 1 and Figure 2The invisible aligner with occlusal pads in this embodiment includes an maxillary aligner 10 and a mandibular aligner 20 for accommodating teeth. The posterior tooth region of the maxillary aligner 10 is provided with an occlusal pad 30. In this embodiment, the posterior tooth region refers to the area with tooth positions 4-6 (i.e., the first premolar, second premolar, and first molar on both sides of the maxilla), which is used to open the occlusal state. The occlusal pad 30 is a hollow structure that protrudes towards the opposing tooth. The occlusal pad 30 is matched with the occlusal surface of the opposing tooth in relative orientation. The width of the occlusal pad 30 on the side near the anterior tooth end is smaller than the width on the side near the posterior tooth end. The occlusal pad 30 has multiple first concave structures 31 on both sides along the dentition direction, and the first concave structures 31 are symmetrically arranged on both sides of the occlusal pad 30.

[0023] In this preferred embodiment, the distance ΔL between adjacent first concave structures 31 on the same side of the occlusal pad 30 is in the range of 2.8mm ≤ ΔL ≤ 3.2mm. If the distance between adjacent first concave structures 31 is too large, it will not have the effect of strengthening the structure; if the distance between adjacent first concave structures 31 is too small, it will greatly reduce the contact surface between the occlusal pad 30 and the opposing tooth, and will also affect the occlusal strength of the occlusal pad 30.

[0024] In this embodiment, specifically, the two long sides of the jaw pad 30 (i.e., along the direction of tooth arrangement) are provided with first concave structures 31 at equal intervals, and the distance ΔL between adjacent first concave structures 31 on the same side is 3.0mm.

[0025] In this preferred embodiment, the minimum distance d between the first concave structures 31 on opposite sides of the jaw pad 30 is... min The range is 1.6mm≤d min ≤2.4mm. If the distance between the opposite first concave structures 31 on both sides of the jaw pad 30 is too close, it will affect the strength of the jaw pad 30.

[0026] In this embodiment, specifically, the distance between the first concave structures 31 on opposite sides of the jaw pad 30 is set to 2.0 mm. The distance of the first concave structure 31 concave to the opposite side is set according to the width of the first concave structure 31 at its position on the jaw pad 30, and needs to satisfy the minimum distance d between the two first concave structures 31. min That's all that's required.

[0027] In this preferred embodiment, the first concave structure 31 is in the shape of an elliptical arc or a circular arc.

[0028] In this preferred embodiment, the opening width W of the first concave structure 31 along the tooth row direction is in the range of 2.6mm≤W≤3.0mm.

[0029] In a preferred embodiment, the jaw pad 30 has a second concave structure 32 at both ends, and the second concave structure 32 is in the shape of an elliptical arc or a circular arc. In this embodiment, the second concave structure 32 on both sides of the jaw pad 30 is designed as a circular arc, with the radii of the arcs on both sides being 4.5 mm and 2.5 mm, respectively.

[0030] In this preferred embodiment, all four corners of the jaw pad 30 are rounded and chamfered. Similarly, the openings of the first concave structure 31 and the second concave structure 32 on the jaw pad 30 are rounded and chamfered at both ends along the length or width of the jaw pad 30. During chewing, the four corners or edges of the jaw pad 30 are prone to concentrated occlusal forces (especially in the posterior tooth area). Sharp edges can lead to local stress peaks. The chamfered design can reduce stress peaks, thereby improving the strength of the jaw pad 30.

[0031] In this preferred embodiment, the length L of the occlusal pad 30 along the dentition direction is in the range of 24mm ≤ L ≤ 28mm. In this embodiment, the length of the occlusal pad 30 (along the dentition direction) is 26mm.

[0032] In this preferred embodiment, the occlusal surface of the jaw pad 30 is not exactly the same as the occlusal surface area of ​​the opposing posterior teeth. The concave structures (first concave structure 31 and second concave structure 32) added to the jaw pad 30 achieve the effect of improving support force, adjusting the overall size of the occlusal surface of the jaw pad 30, and reducing the occlusal surface area of ​​the jaw pad 30 to a certain extent. This not only improves the overall compressive strength of the jaw pad 30, but also reduces the occlusal area, which helps the jaw pad 30 avoid occlusal interference during mandibular chewing movements, making the occlusion more stable.

[0033] In this preferred embodiment, the occlusal pad 30 and the maxillary appliance 10 are integrally formed shell structures. During the design phase, structural attachments that match the relative orientation of the occlusal surfaces of the opposing teeth are designed according to the occlusal state. A dental model is then exported and 3D printed. The appliance, attached to the 3D printed model and pressed out using heating and positive pressure, is a single, integrated appliance, with the posterior tooth area featuring a raised, hollow structure.

[0034] Many specific details have been set forth in the above description to provide a full understanding of this utility model. However, the above description is only a preferred embodiment of this utility model, and this utility model can be implemented in many other ways different from those described herein. Therefore, this utility model is not limited to the specific embodiments disclosed above. Furthermore, any person skilled in the art can make many possible variations and modifications to the technical solution of this utility model using the methods and techniques disclosed above, or modify it into equivalent embodiments with equivalent changes, without departing from the scope of the technical solution of this utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this utility model, without departing from the content of the technical solution of this utility model, shall still fall within the protection scope of the technical solution of this utility model.

Claims

1. A clear aligner with chin pads, comprising an maxillary appliance (10) and a mandibular appliance (20) for accommodating teeth, characterized in that: The maxillary appliance (10) has a occlusal pad (30) in the posterior tooth area. The occlusal pad (30) is a hollow structure that protrudes towards the opposing tooth. The occlusal pad (30) is matched with the occlusal surface of the opposing tooth in terms of relative position. The width of the occlusal pad (30) on the side near the anterior tooth end is smaller than the width on the side near the posterior tooth end. The occlusal pad (30) has multiple first concave structures (31) on both sides along the dentition direction. The first concave structures (31) are symmetrically arranged on both sides of the occlusal pad (30).

2. The invisible aligner with jaw pad according to claim 1, characterized in that: The range of the distance ΔL between adjacent first concave structures (31) on the same side of the jaw pad (30) is 2.8mm≤ΔL≤3.2mm.

3. The invisible aligner with jaw pad according to claim 1, characterized in that: The minimum distance d between the first concave structures (31) on opposite sides of the jaw pad (30) min The range is 1.6mm≤d min ≤2.4mm.

4. The invisible aligner with jaw pad according to claim 1, characterized in that: The first concave structure (31) is in the shape of an elliptical arc or a circular arc.

5. The invisible aligner with jaw pad according to claim 4, characterized in that: The opening width W of the first concave structure (31) along the tooth row direction is in the range of 2.6mm≤W≤3.0mm.

6. The invisible aligner with chin pad according to claim 1, characterized in that: The jaw pad (30) has a second concave structure (32) at both ends, and the second concave structure (32) is in the shape of an elliptical arc or a circular arc.

7. The invisible aligner with jaw pad according to claim 1, characterized in that: The four corners of the jaw pad (30) are all rounded and chamfered.

8. The invisible aligner with jaw pad according to claim 1, characterized in that: The length L of the jaw pad (30) along the dentition direction is in the range of 24mm≤L≤28mm.

9. The invisible aligner with chin pad according to claim 1, characterized in that: The occlusal surface of the occlusal pad (30) is not exactly the same as the occlusal surface area of ​​the posterior teeth of the opposing dentition.

10. The invisible aligner with a jaw pad according to claim 1, characterized in that: The jaw pad (30) and the maxillary appliance (10) are integrally formed shell structures.

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