A clear aligner for mandibular advancement

Abstract

This utility model relates to an invisible orthodontic appliance for mandibular anterior guidance, comprising an upper appliance and a lower appliance. The upper appliance has a first lateral wing attachment on the buccal side of the cavity corresponding to the maxillary posterior teeth region, and the lower appliance has a second lateral wing attachment on the buccal side of the cavity corresponding to the mandibular posterior teeth region. The first and second lateral wing attachments are arranged correspondingly, and each attachment has a corresponding guide ramp. During occlusion, the guide ramps provide auxiliary guidance, leading the mandible forward. Both attachments have reinforcing ribs with a concave design towards the tooth surface. This utility model significantly improves the bending strength and deformation resistance of the attachments by using circular or elliptical concave structures to form reinforcing ribs in the first and second lateral wing attachments, effectively enhancing the overall strength of the appliance and achieving better treatment results.

Description

Technical Field

[0001] This utility model belongs to the field of dental orthodontic medical device technology, and in particular relates to an invisible aligner for mandibular prognathism. Background Technology

[0002] In orthodontic treatment, a shell-shaped dental instrument is needed for mandibular advancement, placed in the posterior region of the upper and lower jaws. Current techniques, for cases requiring mandibular advancement such as mandibular retrusion, often employ a technique of attaching lateral attachments to the shell-shaped main body. The mandible is guided forward through the interaction between the attachments and the teeth.

[0003] However, most existing side wing attachments are integral structures formed by compression molding with the shell-shaped main body. Since the side wing attachments and the shell-shaped main body are designed as a single unit, the thickness and shape of the attachment area are limited by the uniformity of the compression molding process, which can easily lead to stress concentration. After long-term use, they may break or deform, affecting the orthodontic effect. Utility Model Content

[0004] To address the aforementioned problems in the existing technology, this utility model provides a high-strength invisible orthodontic appliance for mandibular prognathism.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an invisible orthodontic appliance for mandibular anterior guidance, comprising an upper appliance and a lower appliance. The upper appliance has a first lateral wing attachment on the buccal side of the cavity corresponding to the maxillary posterior teeth region, and the first lateral wing attachment is integrally molded with the upper appliance. The lower appliance has a second lateral wing attachment on the buccal side of the cavity corresponding to the mandibular posterior teeth region, and the second lateral wing attachment is integrally molded with the lower appliance. The first and second lateral wing attachments are arranged vertically and vertically, and the first and second lateral wing attachments have corresponding guide ramps. During occlusion, the guide ramps provide auxiliary guidance to guide the mandible to move forward. Both the first and second lateral wing attachments have reinforcing ribs, which are designed to be concave inward toward the tooth surface.

[0006] Furthermore, the first and second side wing attachments include a fixing part and a guide part. The fixing part is integrally connected to the receiving cavity of the corresponding tooth, and the cross-sectional width of the guide part gradually decreases along the occlusal direction to form a guide slope.

[0007] Furthermore, the width ratio of the upper and lower ends of the guide portion ranges from 1:2.9 to 1:3.1.

[0008] Furthermore, the ratio of the height of the guide portion to the height of the fixing portion along the tooth growth direction is in the range of 1:1 to 1:1.2.

[0009] Furthermore, the reinforcing rib is recessed in the center of the first or second side wing attachment, and the cross-section of the reinforcing rib is circular or elliptical.

[0010] Furthermore, the concave dimension of the reinforcing rib is reserved at least 0.2mm at the boundary.

[0011] Furthermore, the reinforcing rib has an inwardly concave rounded structure, and the diameter d of the inwardly concave circle is in the range of 1.4mm≤d≤1.6mm.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention relates to an invisible orthodontic appliance for mandibular anterior guidance. The appliance utilizes the guide ramps of the first and second side wing attachments to provide auxiliary guidance, moving the mandible forward. Simultaneously, by incorporating circular or elliptical concave structures in the first and second side wing attachments to form reinforcing ribs and optimizing the mechanical distribution, the bending strength and deformation resistance of the attachments are significantly improved. This effectively enhances the overall strength of the appliance, leading to better treatment outcomes. In clinical applications, it can be designed according to the doctor's needs and used in conjunction with a jaw pad and mandibular anterior guidance device for auxiliary guidance. Alternatively, the attachments can be used alone for primary guidance. Attached Figure Description

[0014] The specific embodiments of this utility model will be further explained below with reference to the accompanying drawings.

[0015] Figure 1 This is a schematic diagram of the dental model structure of the orthodontic appliance in this utility model.

[0016] Figure 2 This is a schematic diagram of the structure of the invisible orthodontic appliance for mandibular prognathism according to this utility model.

[0017] Figure 3 This is a front view of the side wing attachments (first side wing attachment / second side wing attachment) in this utility model.

[0018] Figure 4 This is a side view of the side wing attachment (first side wing attachment / second side wing attachment) in this utility model.

[0019] In the picture:

[0020] 10-Upper orthodontic appliance; 20-Lower orthodontic appliance; 31-First side wing accessory; 32-Second side wing accessory; 40-Reinforcing rib; 51-Fixing part; 52-Guide part. Detailed Implementation

[0021] Example 1

[0022] Combination Figure 2 , Figure 3 and Figure 4 As shown, the invisible aligner for mandibular anterior guidance in this embodiment includes an upper aligner 10 and a lower aligner 20. The upper aligner 10 has a first lateral wing attachment 31 on the buccal side of the cavity corresponding to the maxillary posterior teeth region, and the first lateral wing attachment 31 is integrally molded with the upper aligner 10. The lower aligner 20 has a second lateral wing attachment 32 on the buccal side of the cavity corresponding to the mandibular posterior teeth region, and the second lateral wing attachment 32 is integrally molded with the lower aligner 20. In this embodiment, the designed dental model is as follows: Figure 1 As shown, the orthodontic appliance with side wing attachments of this utility model is integrally formed by a molding process during manufacturing; the first side wing attachment 31 and the second side wing attachment 32 are arranged vertically and vertically, and the first side wing attachment 31 and the second side wing attachment 32 are provided with corresponding guide slopes. During occlusion, the guide slopes provide auxiliary guidance to guide the mandible to move forward. The first side wing attachment 31 and the second side wing attachment 32 are both provided with reinforcing ribs 40, and the reinforcing ribs 40 are designed to be concave inward toward the tooth surface.

[0023] In a preferred embodiment, the first lateral wing attachment 31 and the second lateral wing attachment 32 include a fixing part 51 and a guiding part 52. The fixing part 51 is integrally connected to the receiving cavity of the corresponding tooth, and the fixing part 51 realizes the connection between the lateral wing attachments (first lateral wing attachment 31 and second lateral wing attachment 32) and the orthodontic appliance body (upper orthodontic appliance 10 and lower orthodontic appliance 20). The cross-sectional width (tooth width direction) of the guiding part 52 gradually decreases along the occlusal direction (i.e., away from the tooth root) to form a guiding slope. Specifically, in this embodiment, as shown... Figure 3 As shown, the width of the guide portion 52 at the end away from the fixing portion 51 is W1, and the width of the end closer to the fixing portion 51 is W2, where W1 is less than W2.

[0024] In this preferred embodiment, the width ratio of the upper and lower ends of the guide portion 52 is in the range of 1:2.9 to 1:3.1. Specifically, in this embodiment, as follows... Figure 3 As shown, the width of the guide portion 52 at the end away from the fixing portion 51 is 2mm (i.e., W1 = 2mm), and the width of the end closer to the fixing portion 51 is 6.1mm (i.e., W2 = 6.1mm).

[0025] In this preferred embodiment, the height ratio of the guide portion 52 to the fixing portion 51 along the tooth growth direction is in the range of 1:1 to 1:1.2. Specifically, in this embodiment, as follows... Figure 3 As shown, the height of the guide portion 52 along the tooth growth direction is H1, and the height of the fixing portion 51 along the tooth growth direction is H2. In this embodiment, H1 is 6mm and H2 is 7mm.

[0026] In this preferred embodiment, the reinforcing rib 40 is recessed and positioned in the exact center of the first side wing attachment 31 or the second side wing attachment 32, and the cross-section of the reinforcing rib 40 is circular or elliptical. The circular or elliptical design achieves better reinforcement within the same dimensions.

[0027] In this preferred embodiment, the concave dimension of the reinforcing rib 40 is reserved at least 0.2mm at the boundary. This means that the overall strength of the orthodontic appliance needs to be considered when setting the concave structure to avoid excessive proximity to the appliance boundary, which could lead to low local strength and affect the appliance's use. Specifically, in this embodiment, the width (W1) of the end of the guide portion 52 away from the fixing portion 51 and the height of the side wing attachments (first side wing attachment 31 and second side wing attachment 32) protruding from the tooth surface need to be considered. In this embodiment, the value range of the height h of the side wing attachments (first side wing attachment 31 and second side wing attachment 32) protruding from the tooth surface is 2.0mm ≤ h ≤ 2.4mm.

[0028] In this preferred embodiment, the reinforcing rib 40 has an inwardly concave rounded structure, and the diameter d of the inwardly concave circle is in the range of 1.4mm≤d≤1.6mm.

[0029] This invention relates to an invisible orthodontic appliance for mandibular anterior guidance. The appliance utilizes the guide ramps of the first lateral wing attachment 31 and the second lateral wing attachment 32 to provide auxiliary guidance, guiding the mandible forward. Simultaneously, the circular or elliptical concave structures in the first and second lateral wing attachments 31 and 32 form reinforcing ribs 40. The dimensions of the lateral wing attachments can be determined according to the size of the patient's teeth and the occlusal height and spacing. The first and second lateral wing attachments 31 and 32 can be placed individually or in combination with other attachments. This invention effectively enhances the strength of the orthodontic appliance, achieving better treatment results.

[0030] 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 for mandibular advancement comprising an upper aligner (10) and a lower aligner (20), characterized in that: The upper orthodontic appliance (10) has a first lateral wing attachment (31) on the buccal side of the cavity corresponding to the maxillary posterior teeth region. The first lateral wing attachment (31) is integrally molded with the upper orthodontic appliance (10). The lower orthodontic appliance (20) has a second lateral wing attachment (32) on the buccal side of the cavity corresponding to the mandibular posterior teeth region. The second lateral wing attachment (32) is integrally molded with the lower orthodontic appliance (20). The first lateral wing attachment (31) and the second lateral wing attachment (32) are arranged vertically and vertically, and the first lateral wing attachment (31) and the second lateral wing attachment (32) are provided with corresponding guide slopes. During occlusion, the guide slopes provide auxiliary guidance to guide the mandible to move forward. Both the first lateral wing attachment (31) and the second lateral wing attachment (32) are provided with reinforcing ribs (40), and the reinforcing ribs (40) are designed to be concave towards the tooth surface.

2. The aligner for mandibular advancement of claim 1, wherein: The first wing attachment (31) and the second wing attachment (32) include a fixing part (51) and a guide part (52). The fixing part (51) is integrally connected to the receiving cavity of the corresponding tooth, and the cross-sectional width of the guide part (52) gradually decreases along the occlusal direction to form a guide slope.

3. The aligner for mandibular advancement of claim 2, wherein: The width ratio of the upper and lower ends of the guide part (52) is in the range of 1:2.9 to 1:3.

1.

4. The aligner for mandibular advancement of claim 2, wherein: The ratio of the height of the guide portion (52) to the height of the fixing portion (51) along the tooth growth direction is in the range of 1:1 to 1:1.

2.

5. The aligner for mandibular advancement of claim 1, wherein: The reinforcing rib (40) is recessed in the center of the first side wing attachment (31) or the second side wing attachment (32), and the cross-section of the reinforcing rib (40) is circular or elliptical.

6. The aligner for mandibular advancement of claim 5, wherein: The inner concave dimension of the reinforcing rib (40) is reserved at least 0.2mm at the boundary.

7. The aligner for mandibular advancement of claim 5, wherein: The reinforcing rib (40) has an inwardly concave rounded structure, and the diameter d of the inwardly concave circle is in the range of 1.4mm≤d≤1.6mm.

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