Auxiliary tool suitable for opening occlusion of anterior teeth of upper jaw and lower jaw
With the assistance of upper and lower elastic support wires and pressure transmission components, the occlusion of the upper and lower anterior teeth can be opened non-invasively and efficiently, which solves the problems of invasiveness or low efficiency in existing technologies. It provides a non-invasive and effective anterior tooth intrusion effect, and is especially suitable for sleep orthodontics.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING MEDICAL UNIVERSITY
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-19
AI Technical Summary
In existing technologies, anterior tooth intrusion methods are mostly invasive procedures or inefficient and may cause step-like structures between adjacent teeth, which are difficult for patients to accept or tolerate.
The auxiliary tool, consisting of upper and lower elastic support wires and pressure transmission components, uses elastic restoring force to pull or push the invisible braces, thereby lowering the upper and lower front teeth. It works in conjunction with elastic bands to maintain a closed mouth position and reduce muscle fatigue.
It is non-invasive and highly effective in opening the anterior bite, reducing damage to adjacent teeth, reducing muscle fatigue, and is suitable for sleep-based orthodontic treatment.
Smart Images

Figure CN224251516U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of oral medical device technology, specifically to an auxiliary tool suitable for opening the bite of the upper and lower anterior teeth. Background Technology
[0002] Deep overbite is a common malocclusion characterized by the incisal edge of the upper anterior teeth covering more than 1 / 3 of the crown of the lower anterior teeth, or the lower anterior teeth biting more than 1 / 3 of the lingual side of the upper anterior teeth. It not only affects aesthetics, but may also lead to soft tissue injury, joint disorder, and affect oral health.
[0003] The correction of deep overbite needs to be designed according to the patient's growth pattern, facial aesthetics and other specific circumstances. It may involve either posterior tooth elongation, anterior tooth intrusion or both, with anterior tooth intrusion being the most complex.
[0004] Currently, implant anchorage is the most common method for anterior tooth intrusion, but this method is invasive and many patients refuse it due to fear of pain. Other methods, such as multi-purpose arches and step ladders, are slower and sometimes create steps between adjacent teeth. Utility Model Content
[0005] Currently, implant anchorage is often used to address anterior tooth intrusion, but this method is invasive and many patients refuse it due to fear of pain. Other methods, such as multi-purpose arches and stepped arches, are slow and sometimes create steps between adjacent teeth. This invention provides an auxiliary tool suitable for opening the bite of the upper and lower anterior teeth.
[0006] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0007] An auxiliary tool for opening the bite of the upper and lower anterior teeth includes an upper elastic support wire and a lower elastic support wire. The two ends of the upper and lower elastic support wires are fixedly connected. The distance between the upper and lower elastic support wires gradually increases from the two ends to the middle. The upper elastic support wire is provided with a left upper pressure element and a right upper pressure element, and the lower elastic support wire is provided with a left lower pressure element and a right lower pressure element.
[0008] Compared with the prior art, the auxiliary tool provided by this utility model for opening the bite of the upper and lower anterior teeth is first placed in the patient's mouth, with the left and right upper pressure pieces corresponding to the positions of the upper left and upper right anterior teeth, respectively. Then, the left and right upper pressure pieces are connected to the lingual hooks or lingual buttons on the buccal side of the existing upper invisible braces. Similarly, the left and right lower pressure pieces are connected to the positions of the lower left and lower right anterior teeth, respectively. The lingual hooks or buttons on the buccal side of the invisible braces allow the upper and lower aligners to be pulled or pushed separately by the elastic restoring forces of the upper and lower elastic support wires when the patient closes their mouth. Pulling or pushing the upper aligner upwards indents the upper front teeth, and pulling or pushing the lower aligner downwards indents the lower front teeth, thus simultaneously indenting the upper and lower front teeth and opening the bite. The tool is simple in structure and easy to use. Furthermore, during the indentation of the upper and lower front teeth, an elastic band can be placed under the patient's chin and attached to their head. This keeps the patient in a closed mouth position, using the elastic band to counteract the elastic restoring forces of the upper and lower support wires. This avoids relying solely on the masticatory muscles to resist these forces, reducing fatigue and damage to these muscles. This method is particularly suitable when the patient is sleeping.
[0009] Furthermore, the pressure transmission component is a free hook, which is slidably connected to the elastic support wire through the bow wire groove at the bottom.
[0010] Furthermore, the pressure transmission component is a U-shaped groove integrally formed on the elastic support wire.
[0011] Furthermore, the upper and lower elastic support wires are made of elastic stainless steel wire.
[0012] Furthermore, the design positions of the left upper pressure component, right upper pressure component, left lower pressure component, and right lower pressure component correspond to the positions between the lateral incisors and canines.
[0013] Furthermore, the design positions of the left upper pressure component, right upper pressure component, left lower pressure component, and right lower pressure component correspond to the positions between the lateral incisors and the central incisors. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of an auxiliary tool structure provided by this utility model, suitable for opening the bite of the upper and lower anterior teeth.
[0015] Figure 2 This is a schematic diagram of another auxiliary tool structure provided by this utility model, suitable for opening the bite of the upper and lower anterior teeth.
[0016] In the diagram, 1 is the upper elastic support wire; 11 is the upper pressure component on the left; 12 is the upper pressure component on the right; 2 is the lower elastic support wire; 21 is the lower pressure component on the left; 22 is the lower pressure component on the right; and 3 is the bow wire groove. Detailed Implementation
[0017] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.
[0018] In the description of this utility model, it should be understood that the terms "longitudinal," "radial," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0020] Please refer to Figure 1 and Figure 2 As shown, this utility model provides an auxiliary tool suitable for opening the bite of the upper and lower anterior teeth, including an upper elastic support wire 1 and a lower elastic support wire 2. The two ends of the upper elastic support wire 1 and the lower elastic support wire 2 are fixedly connected as if integrally formed. The distance between the upper elastic support wire 1 and the lower elastic support wire 2 gradually increases from the two ends to the middle. That is, the auxiliary tool composed of the upper elastic support wire 1 and the lower elastic support wire 2 for opening the bite of the upper and lower anterior teeth has a shape that is "larger in the front and smaller in the back", which is similar to the shape of the front part (near the lips) opening significantly larger than the back part (near the throat) when the mouth is wide open. Therefore, when the mouth is closed, it can provide better elastic support in conjunction with invisible braces. The upper elastic support wire 1 is provided with a left upper pressure member 11 and a right upper pressure member 12, and the lower elastic support wire 2 is provided with a left lower pressure member 21 and a right lower pressure member 22.
[0021] Compared with the prior art, the auxiliary tool for opening the bite of the upper and lower anterior teeth provided by this utility model is first placed in the patient's mouth, with the left and right upper pressure pieces corresponding to the positions of the upper left and upper right anterior teeth, respectively. Then, the left and right upper pressure pieces are connected to the lingual hooks or lingual buttons on the buccal side of the existing upper invisible braces. Similarly, the left and right lower pressure pieces are connected to the positions of the lower left and lower right anterior teeth, respectively. The lingual hooks or buttons on the buccal side of the invisible braces allow the upper and lower aligners to be pulled or pushed separately by the elastic restoring forces of the upper and lower elastic support wires when the patient closes their mouth. Pulling or pushing the upper aligner upwards indents the upper front teeth, and pulling or pushing the lower aligner downwards indents the lower front teeth, thus simultaneously indenting the upper and lower front teeth and opening the bite. The tool is simple in structure and easy to use. Furthermore, during the indentation of the upper and lower front teeth, an elastic band can be placed under the patient's chin and attached to their head. This keeps the patient in a closed mouth position, using the elastic band to counteract the elastic restoring forces of the upper and lower support wires. This avoids relying solely on the masticatory muscles to counteract these forces, reducing fatigue and damage to these muscles. This method is particularly suitable when the patient is sleeping.
[0022] As one specific embodiment, please refer to Figure 1 As shown, the pressure transmitting component is a free hook, which is slidably connected to the elastic support wire through the archwire groove 3 at the bottom. That is, the left upper pressure component 11, the right upper pressure component 12, the left lower pressure transmitting component 21, and the right lower pressure transmitting component 22 are all implemented using existing free hooks well known to those skilled in the art. The left upper pressure component 11 and the right upper pressure component 12 are slidably connected to the upper elastic support wire 1 through the archwire groove 3 at the bottom. The left and right free hooks are suitable for attaching to the strip that passes through the existing maxillary invisible braces. The lingual hooks on the buccal side of the aperture allow for traction of the maxillary invisible aligners. The left and right lower pressure transmission components 21 and 22 are slidably connected to the lower elastic support wire 2 via the archwire groove 3 at the bottom. The left and right lower free hooks are suitable for attaching to the lingual hooks on the buccal side of the aperture passing through the existing mandibular invisible aligner, thereby allowing traction of the mandibular invisible aligner. For the lingual hook structure passing through the buccal side of the aperture on the existing invisible aligner, please refer to the invention patent with publication number CN113040948B. Of course, the hooks can also be attached to the main archwire of existing fixed orthodontic appliances to achieve anterior tooth intrusion by fixing the orthodontic appliance. Furthermore, the shape of the hooks is not limited; they can be simple hooks or hooks with protective functions.
[0023] As another specific embodiment, please refer to Figure 2 As shown, the pressure transmitting component is a U-shaped groove integrally formed on the elastic support wire. Specifically, the upper left pressure transmitting component 11 and the upper right pressure transmitting component 12 are implemented by integrally forming U-shaped grooves on the upper elastic support wire 1. The upper left and upper right U-shaped grooves are suitable for engaging with the lingual button on the buccal side of the existing upper clear aligner, thereby pushing the upper clear aligner. The lower left pressure transmitting component 21 and the lower right pressure transmitting component 12 are implemented by integrally forming U-shaped grooves on the lower elastic support wire 2. The lower left and lower right U-shaped grooves are suitable for engaging with the lingual button on the buccal side of the existing lower clear aligner, thereby pushing the lower clear aligner. Preferably, the upper left pressure transmitting component 11 and the upper right pressure transmitting component 12, as well as the lower left pressure transmitting component 21 and the lower right pressure transmitting component 12, can be symmetrically arranged along the midline of the face.
[0024] As a specific embodiment, the upper elastic support wire 1 and the lower elastic support wire 2 are made of elastic stainless steel wire. The auxiliary tool composed of these wires, which is suitable for opening the bite of the upper and lower anterior teeth, not only has good wear resistance and corrosion resistance, but also provides stable elastic recovery force. This allows for continuous traction of the upper and lower invisible braces, thereby better indenting the upper and lower anterior teeth and achieving good orthodontic results.
[0025] As a specific embodiment, the left upper pressing component 11, right upper pressing component 12, left lower pressing component 21 and right lower pressing component 22 are designed to correspond to the positions between the lateral incisors (tooth 2) and canines (tooth 3), thereby better pressing down the upper and lower anterior teeth and improving the orthodontic effect of opening the bite.
[0026] In another specific embodiment, the left upper pressing component 11, the right upper pressing component 12, the left lower pressing component 21 and the right lower pressing component 22 are designed to correspond to the positions between the lateral incisor (tooth 2) and the central incisor (tooth 1), thereby better pressing down the upper and lower anterior teeth and improving the orthodontic effect of opening the bite.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An aid for opening the bite of the upper and lower anterior teeth, characterized in that It includes an upper elastic support wire (1) and a lower elastic support wire (2), the two ends of the upper elastic support wire (1) and the lower elastic support wire (2) are fixedly connected, the distance between the upper elastic support wire (1) and the lower elastic support wire (2) gradually increases from the two ends to the middle, the upper elastic support wire (1) is provided with a left upper pressure member (11) and a right upper pressure member (12), and the lower elastic support wire (2) is provided with a left lower pressure member (21) and a right lower pressure member (22).
2. The tool according to claim 1, characterized in that, The pressure transmission component is a free hook, which is slidably connected to the elastic support wire through the bow wire groove (3) at the bottom.
3. The tool according to claim 1, characterized in that, The pressure transmission component is a U-shaped groove integrally formed on the elastic support wire.
4. The tool according to claim 1, characterized in that, The upper elastic support wire (1) and the lower elastic support wire (2) are made of elastic stainless steel wire.
5. The tool according to claim 1, characterized in that, The design positions of the left upper pressure component (11), right upper pressure component (12), left lower pressure component (21), and right lower pressure component (22) correspond to the positions between the lateral incisors and canines.
6. The tool according to claim 1, characterized in that, The design positions of the left upper pressure component (11), right upper pressure component (12), left lower pressure component (21), and right lower pressure component (22) correspond to the positions between the lateral incisors and the central incisors.