Tooth appliance

By designing an arch expansion mechanism consisting of three reinforcing ribs in the orthodontic appliance, the problems of complex arch expansion and poor comfort in orthodontic treatment have been solved, thus improving both comfort and productivity.

CN224155785UActive Publication Date: 2026-04-24HANGZHOU YIYA DIGITAL DENTAL CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HANGZHOU YIYA DIGITAL DENTAL CO LTD
Filing Date
2025-02-24
Publication Date
2026-04-24

AI Technical Summary

Technical Problem

Existing methods of dental arch expansion for orthodontic treatment are complex to perform, cause significant oral damage to patients, result in poor comfort, and pose operational risks.

Method used

A dental appliance was designed, comprising an upper appliance, a hard palate support, and an arch expansion mechanism. The arch expansion reinforcement assembly consists of three reinforcing ribs with gradually decreasing thickness and gaps to avoid tongue compression. Combined with an arc-shaped design, it improves comfort and reduces the difficulty of mold making.

Benefits of technology

It improves the comfort of dental arch expansion treatment, reduces the difficulty of material use and production, and reduces damage to the oral cavity and operational risks.

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Abstract

The utility model relates to a tooth correcting device which comprises an upper correcting device, a hard palate supporting part, an arch expanding mechanism and a demolding flat plate, the expansion mechanism comprises an expansion device connecting platform and an expansion reinforcing rib assembly; the upper appliance is attached to the upper row of teeth; the hard palate supporting part is fixedly connected with the upper appliance; the hard palate supporting part is attached to the upper palate; the expansion reinforcing rib assembly comprises a first reinforcing rib, a second reinforcing rib and a third reinforcing rib; the first reinforcing rib is fixedly arranged on the hard palate supporting part and the arch expanding device connecting platform; the second reinforcing rib is fixedly arranged on the hard palate supporting part and the arch expanding device connecting platform; and the third reinforcing rib is fixedly arranged on the hard palate supporting part and the arch expanding device connecting platform.
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Description

Technical Field

[0001] This utility model relates to the field of orthodontic technology, specifically to a dental appliance. Background Technology

[0002] Arch expansion is a common orthodontic treatment for dental arch width discrepancies. Common arch expansion methods include fixed arch expander, four-eye spring arch expander, knight arch expander, implant-assisted arch expander, and surgical-assisted arch expander.

[0003] However, most of the above-mentioned orthodontic methods are fixed orthodontic treatments. When performing these orthodontic procedures, it is necessary to insert a wrench into the small hole of the device inside the patient's mouth to expand the arch. This method not only causes greater damage to the patient's oral cavity, but also makes the patient's experience and comfort poor. At the same time, it is also more troublesome for the doctor to expand the arch, and there is a risk that the small wrench may fall into the mouth during the operation, causing airway obstruction. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section above, some embodiments of this application provide a dental appliance, including an upper appliance, a hard palate support, an arch expansion mechanism, and a release plate; the arch expansion mechanism includes an arch expander connecting platform and an arch expansion reinforcing rib assembly; the upper appliance fits against the upper teeth; the hard palate support is fixedly connected to the upper appliance; and the hard palate support fits against the maxilla.

[0006] Specifically, the arch expander reinforcement assembly includes a first reinforcement rib, a second reinforcement rib, and a third reinforcement rib; the first reinforcement rib is fixedly disposed on the hard palate support and the arch expander connecting platform; the second reinforcement rib is fixedly disposed on the hard palate support and the arch expander connecting platform; and the third reinforcement rib is fixedly disposed on the hard palate support and the arch expander connecting platform.

[0007] Specifically, the thickness of the first reinforcing rib is greater than that of the second reinforcing rib; the thickness of the second reinforcing rib is greater than that of the third reinforcing rib.

[0008] Specifically, there is a gap between the first reinforcing rib and the second reinforcing rib; there is a gap between the second reinforcing rib and the third reinforcing rib.

[0009] Specifically, the first reinforcing rib is arc-shaped; the second reinforcing rib is arc-shaped; the third reinforcing rib is arc-shaped; the radius of the arc of the first reinforcing rib is smaller than the radius of the arc of the second reinforcing rib; the radius of the arc of the second reinforcing rib is smaller than the radius of the arc of the third reinforcing rib.

[0010] Specifically, the upper orthodontic appliances include anterior incisor braces, lateral incisor braces, canine braces, and molar braces.

[0011] Specifically, the expander connecting platform is fixedly connected to the molar sleeves on both sides.

[0012] The beneficial effects of this utility model are:

[0013] (1) The thickness of the first reinforcing rib to the third reinforcing rib gradually decreases, that is, the thickness of the reinforcing rib decreases from the tip of the tongue to the root of the tongue. This can avoid the three reinforcing ribs pressing on the tongue, improve wearing comfort and ensure the expansion effect.

[0014] (2) There is a gap between the three reinforcing ribs and the three reinforcing ribs are stepped in order. Compared with the bow expander with continuous inclined surface, it can save materials and reduce the difficulty of mold opening, making it easier to produce.

[0015] (3) The radius of the three reinforcing ribs increases gradually to avoid pressing on the tongue and improve wearing comfort. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0017] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a bottom view of the present invention. Detailed Implementation

[0021] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0022] It should also be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0023] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0024] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0025] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0026] Reference Figures 1-2 As shown, the present invention discloses a dental appliance comprising an upper orthodontic appliance 1, a hard palate support 2, an arch expansion mechanism 3, and a release plate 4. The arch expansion mechanism includes an arch expander connecting platform 31 and an arch expansion reinforcing rib assembly 32. The upper orthodontic appliance fits against the upper teeth. The hard palate support is fixedly connected to the upper orthodontic appliance. The hard palate support fits against the upper palate. The upper orthodontic appliance fits against the upper teeth, thus achieving the function of orthodontic correction. The hard palate support is fixedly connected to the upper orthodontic appliance and fits against the upper palate, providing support for the upper orthodontic appliance. The arch expansion mechanism is used for arch expansion treatment. The release plate facilitates demolding after the upper orthodontic appliance, hard palate support, and arch expansion mechanism are integrally formed, improving manufacturing efficiency. After demolding, the release plate needs to be cut and separated from the upper orthodontic appliance.

[0027] Specifically, the arch expander reinforcement assembly includes a first reinforcement 321, a second reinforcement 322, and a third reinforcement 323; the first reinforcement is fixedly disposed on the hard palate support and the arch expander connecting platform; the second reinforcement is fixedly disposed on the hard palate support and the arch expander connecting platform; the third reinforcement is fixedly disposed on the hard palate support and the arch expander connecting platform; the arch expander connecting platform can prevent compression of the gingiva on both sides during arch expander treatment; the first reinforcement, the second reinforcement, and the third reinforcement work together to achieve arch expander treatment.

[0028] Specifically, the first reinforcing rib is thicker than the second reinforcing rib; the second reinforcing rib is thicker than the third reinforcing rib; the thickness of the first reinforcing rib gradually decreases from the third reinforcing rib to the tip of the tongue, that is, the thickness of the reinforcing ribs decreases from the tip of the tongue to the root of the tongue. This can avoid the three reinforcing ribs compressing the tongue, improve wearing comfort, and ensure the arch expansion effect.

[0029] Specifically, there is a gap between the first reinforcing rib and the second reinforcing rib; there is a gap between the second reinforcing rib and the third reinforcing rib; there are gaps between the three reinforcing ribs and the three reinforcing ribs are stepped in order. Compared with the bow expander with continuous inclined surfaces, this can save materials, reduce the difficulty of mold making, and facilitate production.

[0030] Specifically, the first reinforcing rib is arc-shaped; the second reinforcing rib is arc-shaped; and the third reinforcing rib is arc-shaped. The radius of the arc of the first reinforcing rib is smaller than that of the second reinforcing rib; the radius of the arc of the second reinforcing rib is smaller than that of the third reinforcing rib. The progressively increasing radii of the three reinforcing ribs can prevent pressure on the tongue and improve wearing comfort.

[0031] Specifically, the upper orthodontic appliance includes anterior incisor braces 11, lateral incisor braces 12, canine braces 13, and molar braces 14.

[0032] Specifically, the expander connecting platform is fixedly connected to the molar sleeves on both sides.

[0033] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in the embodiments of this disclosure is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A dental appliance, characterized by: It includes an upper orthodontic appliance (1), a hard palate support (2), an arch expansion mechanism (3), and a release plate (4); the arch expansion mechanism includes an arch expander connecting platform (31) and an arch expansion reinforcing rib assembly (32); the upper orthodontic appliance fits against the upper teeth; the hard palate support is fixedly connected to the upper orthodontic appliance; the hard palate support fits against the upper palate.

2. A dental appliance according to claim 1, wherein: The arch expander reinforcement assembly includes a first reinforcement rib (321), a second reinforcement rib (322), and a third reinforcement rib (323); the first reinforcement rib is fixedly disposed on the hard palate support and the arch expander connecting platform; the second reinforcement rib is fixedly disposed on the hard palate support and the arch expander connecting platform; and the third reinforcement rib is fixedly disposed on the hard palate support and the arch expander connecting platform.

3. A dental appliance according to claim 2, wherein: The thickness of the first reinforcing rib is greater than that of the second reinforcing rib; the thickness of the second reinforcing rib is greater than that of the third reinforcing rib.

4. The dental appliance of claim 2, wherein: A gap is provided between the first reinforcing rib and the second reinforcing rib; a gap is provided between the second reinforcing rib and the third reinforcing rib.

5. The dental appliance of claim 2, wherein: The first reinforcing rib is arc-shaped; the second reinforcing rib is arc-shaped; the third reinforcing rib is arc-shaped; the radius of the arc of the first reinforcing rib is smaller than the radius of the arc of the second reinforcing rib; the radius of the arc of the second reinforcing rib is smaller than the radius of the arc of the third reinforcing rib.

6. The dental appliance of claim 1, wherein: The upper orthodontic appliance includes anterior incisor braces (11), lateral incisor braces (12), canine braces (13), and molar braces (14).

7. A dental appliance according to claim 4, wherein: The expander connecting platform is fixedly connected to the molar sleeves on both sides respectively.