High-stability Angler class III malocclusion appliance

Abstract

The invention discloses a high-stability Angle III malocclusion appliance which comprises a lower jaw labial arch, an upper jaw labial arch is connected to the upper end of the lower jaw labial arch, cheek screens are mounted at the joints of the two ends of the lower jaw labial arch and the two ends of the upper jaw labial arch respectively, and two soft rubber lip stoppers are mounted on the upper jaw labial arch. The orthodontic appliance can be more stable in the oral cavity, the comfort level of the orthodontic appliance can be improved, the orthodontic appliance is not prone to falling off or deforming due to oral cavity movement or external force, the orthodontic appliance can be more stable in the oral cavity, teeth are guided to grow in the correct direction, bad habits such as lip sucking and biting are improved, use selection is flexible, and the orthodontic appliance is convenient to use and popularize. And the use convenience and the installation stability are greatly improved.

Description

Technical Field

[0001] The present invention relates to the technical field of malocclusion correctors, and in particular to an Angle Class III malocclusion corrector with high stability. Background Art

[0002] Frank 3 functional appliance is a Class III malocclusion appliance, in which the cheek shield and lip stopper are its important components, working together in the patient's mouth to improve the growth and development of teeth and jaws.

[0003] The cheek guard is located on both sides of the orthodontic appliance, extending from the maxillary vestibule groove to the bottom of the mandibular vestibule groove. Its main purpose is to remove the effect of the cheek muscle tissue on the dentition, thereby expanding the dental arch and providing more space for the teeth. The lip stop is placed at the mucosal turning point on the labial side of the maxillary incisor, adapted to the shape of the anterior maxillary alveolar bone, parallel to the soft tissue surface of the alveolar bone and away from the tissue surface. Its function is to promote guidance and guide the teeth to grow in the correct direction.

[0004] However, when installing the cheek shield and lip guard, the traditional method is to use two rubber veneers bonded to the lip arch. Due to their softening characteristics, they are prone to displacement, which in turn reduces the blocking effect on the cheek muscle tissue and reduces the efficiency of treatment. At the same time, the bonding method has poor stability and there is a risk of falling off. For this reason, we proposed a highly stable Angle III malocclusion appliance to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a highly stable Angle III malocclusion appliance.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A highly stable Angle III malocclusion appliance comprises a mandibular labial arch, the upper end of which is connected to a maxillary labial arch, cheek shields are respectively installed at the connecting points of the mandibular labial arch and the maxillary labial arch, and two soft rubber lip stops are installed on the maxillary labial arch.

[0008] Preferably, a support rod is installed in the cheek shield, and the cheek shield is made of a material selected from the group consisting of resin and plastic.

[0009] Preferably, the mandibular labial arch and the maxillary labial arch are made of medical stainless steel wire, the soft rubber lip stopper is adapted to the shape of the anterior maxillary alveolar bone, is parallel to the soft tissue surface of the alveolar bone and is away from the tissue surface, and the thickness of the soft rubber lip stopper is 2-5 mm.

[0010] Preferably, one side of the buccal shield is provided with a bioactive ceramic coating.

[0011] Preferably, a plurality of micrometer-sized guide grooves are provided at equal intervals on one side of the cheek screen.

[0012] Preferably, a vestibular shield pressure sensor is installed in the buccal shield.

[0013] Preferably, a plurality of arc-shaped reinforcement rods are installed on the maxillary labial arch, and the arc-shaped reinforcement rods are arranged in groups of two, and the arc-shaped reinforcement rods are covered in a soft rubber lip guard.

[0014] Preferably, two tree-branch-shaped reinforcement rods are installed on the maxillary labial arch, and one tree-branch-shaped reinforcement rod on the same side is covered in a soft rubber lip stopper on the same side.

[0015] Preferably, two array reinforcement rods are installed on the maxillary labial arch, and one array reinforcement rod on the same side is covered in a soft rubber lip stopper on the same side.

[0016] Preferably, two plastic lip stops are fixedly penetrated through the maxillary labial arch.

[0017] In the present invention, the wearing time of the orthodontic appliance is divided into two stages: initial wearing and treatment. During the initial wearing, the appliance is worn for 4-6 hours a day within half a month, and the patient is allowed to practice lip closure training and speaking. During the treatment stage, the appliance is worn for 12 hours a day (mainly at night). During this period, the lip guard should be appropriately adjusted to expand toward the lip side to stimulate the growth of the maxilla. The clinical treatment takes about 6 months, and the occlusion is reconstructed. The treatment process can be completed in about 10 months.

[0018] The present invention prevents the imbalance of internal and external forces of the dental arch by stimulating and promoting the normal development of children's oral muscles, thereby avoiding the developmental deformities of the dental arch and maxillofacial region. In this process, the stability of the appliance is crucial. The design of the arc-shaped reinforcing rod may help to enhance the overall structure of the appliance, making it more stable in the oral cavity and less likely to fall off or deform, thereby ensuring the smooth progress of the correction process. In addition, the arc-shaped reinforcing rod may also improve the comfort of the appliance. By reasonably distributing the pressure of the appliance on the oral cavity, the discomfort is reduced, and the patient is more willing to wear the appliance, thereby improving the compliance and effect of the correction.

[0019] The present invention prevents the imbalance of internal and external forces of the dental arch by stimulating and promoting the normal development of children's oral muscles, thereby avoiding the malformation of the dental arch and maxillofacial development. In this process, the stability of the appliance is crucial. The design of the tree-branch-shaped reinforcement rod helps to enhance the overall structure of the appliance, making it more stable in the oral cavity and not easy to fall off or deform due to oral activities or external forces. This stability not only ensures that the appliance can continue to function effectively, but also improves the patient's wearing comfort and reduces the troubles caused by loose or uncomfortable appliances. In addition, the tree-branch-shaped reinforcement rod may also improve the correction efficiency by optimizing the mechanical transmission path of the appliance. By reasonably distributing the correction force, the teeth and jaws can be corrected more effectively in a shorter time, thereby shortening the entire correction cycle.

[0020] The array reinforcement rod is designed to strengthen the overall structure of the orthodontic appliance, making it more stable in the oral cavity and less likely to fall off or deform.

[0021] The present invention has the following advantages:

[0022] 1. The overall structure of the appliance is enhanced by setting the arc-shaped reinforcement rod, making it more stable in the oral cavity, not easy to fall off or deform, ensuring the smooth progress of the correction process, and improving the comfort of the appliance;

[0023] 2. The setting of the tree-branch-shaped reinforcement rod helps to strengthen the overall structure of the appliance, making it more stable in the oral cavity and not easy to fall off or deform due to oral activities or external forces;

[0024] 3. The overall structure of the appliance is enhanced by setting up the array reinforcement rod, making it more stable in the oral cavity;

[0025] 4. Plastic lip guards can guide teeth to grow in the right direction and improve bad habits such as lip sucking;

[0026] 5. By setting up a bioactive ceramic coating, calcium and phosphorus ions can be released to promote local bone remodeling and improve the treatment effect;

[0027] 6. Use CNC machine tools to carve biological functional curved surfaces on the cheek shield and form micron-level guide grooves on the inner surface of the cheek shield to improve saliva flow and self-cleaning effects;

[0028] 7. By adding a respiratory monitoring module and screening sleep apnea syndrome through the vestibular shield pressure sensor, the coordinated treatment of malocclusion and respiratory disorders can be achieved;

[0029] In summary, the present invention can not only achieve greater stability in the oral cavity, but also improve the comfort of the orthodontic appliance. In addition, it is not easy to fall off or deform due to oral activities or external forces. It can also make it more stable in the oral cavity, guide the teeth to grow in the correct direction, and improve bad habits such as lip sucking. The flexible use options greatly improve the convenience of use and the stability of installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a diagram of the installation structure of the soft rubber lip guard of the present invention;

[0031] Figure 2 The structure diagram of the arc reinforcing rod of the present invention is provided;

[0032] Figure 3 A structural diagram of a tree branch-shaped reinforcing rod according to the present invention;

[0033] Figure 4 A structural diagram of the array reinforcement rod arrangement of the present invention;

[0034] Figure 5 A structural diagram of the plastic lip guard of the present invention;

[0035] Figure 6 A structural diagram is provided for the bioactive ceramic coating of the present invention;

[0036] Figure 7 A structural diagram of the micron-scale guide groove of the present invention;

[0037] Figure 8 This is a structural diagram of the vestibular shield pressure sensor of the present invention.

[0038] In the figure: 1 support rod, 2 tree branch-shaped reinforcement rod, 3 maxillary labial arch, 4 soft rubber lip stopper, 5 cheek screen, 6 mandibular labial arch, 7 arc-shaped reinforcement rod, 8 array reinforcement rod, 9 plastic lip stopper, 10 bioactive ceramic coating, 11 micron-level guide groove, 12 vestibular shield pressure sensor. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0040] Example 1

[0041] Reference Figure 1, a highly stable Angle III malocclusion appliance, comprising a mandibular labial arch 6, the upper end of which is connected to a maxillary labial arch 3, cheek shields 5 are respectively installed at the connection points of the mandibular labial arch 6 and the maxillary labial arch 3, and two soft rubber lip stops 4 are installed on the maxillary labial arch 3, the soft rubber lip stops 4 can achieve stable blocking and covering, and improve the stability of treatment;

[0042] The support rod 1 is installed in the cheek shield 5, and the mandibular labial arch 6 and the maxillary labial arch 3 are made of medical stainless steel wire. The stainless steel wire has good strength and toughness and is used to ensure the stability and durability of the appliance. The choice of this metal material fully considers the durability of the appliance and the impact on the oral environment, so that it can meet various needs during the treatment process;

[0043] The cheek shield 5 is made of one of the materials selected from resin and plastic. The soft rubber lip shield 4 is adapted to the shape of the alveolar bone in the front of the maxilla, parallel to the soft tissue surface of the alveolar bone and away from the tissue surface. The thickness of the soft rubber lip shield 4 is 3 mm, which fully meets the oral covering needs of children. The cheek shields at the connection between the two ends play an important role in separation and protection. It can not only avoid excessive friction between the orthodontic appliance and the buccal tissue of the oral cavity, but also create a relatively stable internal oral space for the correction process to a certain extent, effectively blocking the adverse effects of abnormal oral muscle strength on the growth of teeth and jaws, and providing stable external conditions for the normal arrangement of teeth and the healthy development of the jaws, thereby greatly improving the stability of treatment.

[0044] The mandibular labial arch and maxillary labial arch are made of medical stainless steel wire, which is a carefully considered choice. Stainless steel wire has excellent strength and toughness. During the correction process, it can withstand the complex chewing force and muscle tension inside the mouth, ensuring the stability of the overall structure of the appliance and not prone to deformation or breakage. At the same time, medical stainless steel wire has good biocompatibility, is less irritating to the oral environment, and can adapt to the moist and complex physiological environment in the mouth. While ensuring the treatment effect, it will not cause additional damage to the oral tissue, fully meeting the various needs during the treatment process. The cheek screen is made of one of the resin or plastic materials. These materials are light in weight and have good formability. They can be customized according to the actual situation of the patient's oral cavity and are more comfortable to wear.

[0045] Example 2

[0046] Reference Figure 2, the difference between the present embodiment 2 and the embodiment 1 is that the present embodiment 2 further comprises: a plurality of arc-shaped reinforcing rods 7 are installed on the maxillary labial arch 3, and the arc-shaped reinforcing rods 7 are arranged in groups of two, the arc-shaped reinforcing rods 7 are wrapped in the soft rubber lip guard 4, the support rod 1 is installed in the cheek screen 5, the mandibular labial arch 6 and the maxillary labial arch 3 are made of medical stainless steel wire, the stainless steel wire has good strength and toughness, and is used to ensure the stability and durability of the orthodontic appliance, and the selection of such metal material fully considers the durability of the orthodontic appliance and the impact on the oral environment, so that it can meet various needs during the treatment process;

[0047] The cheek shield 5 is made of one of the materials selected from resin and plastic. The soft rubber lip guard 4 is adapted to the shape of the alveolar bone in the front of the maxilla, is parallel to the soft tissue surface of the alveolar bone and leaves the tissue surface. The thickness of the soft rubber lip guard 4 is 3 mm, which fully meets the oral covering needs of children. Among them, the design of the arc-shaped reinforcement rod 7 helps to enhance the overall structure of the orthodontic appliance, making it more stable in the oral cavity, not easy to fall off or deform, thereby ensuring the smooth progress of the correction process. In addition, the arc-shaped reinforcement rod 7 may also improve the comfort of the orthodontic appliance, by reasonably distributing the pressure of the orthodontic appliance on the oral cavity, reducing discomfort, and making patients more willing to wear the orthodontic appliance, thereby improving the compliance and effect of the correction.

[0048] The arc-shaped reinforcing rod 7 also plays an important role in improving the comfort of patients. It reasonably distributes the pressure of the appliance on the oral cavity, avoiding the discomfort caused by excessive local pressure on the oral tissue. When the patient wears the appliance, the feeling inside the oral cavity is more uniform and gentle, reducing the pain, ulcers and other problems caused by the stimulation of the appliance. The patient feels more comfortable during the wearing process and is more willing to wear the appliance for a long time, thereby improving the compliance of correction, which is very important for the treatment of Angle Class III malocclusion, because standardized wearing time and good compliance are the key factors to ensure the correction effect.

[0049] Example 3

[0050] Reference Figure 3 , the difference between the present embodiment 3 and the embodiment 1 is that the present embodiment 3 further comprises: two tree-branch-shaped reinforcing rods 2 are installed on the maxillary labial arch 3, a tree-branch-shaped reinforcing rod 2 on the same side is covered in a soft rubber lip stopper 4 on the same side, a support rod 1 is installed in the cheek screen 5, and the mandibular labial arch 6 and the maxillary labial arch 3 are made of medical stainless steel wire. The stainless steel wire has good strength and toughness and is used to ensure the stability and durability of the orthodontic appliance. The selection of this metal material fully considers the durability of the orthodontic appliance and its impact on the oral environment, so that it can meet various needs during the treatment process;

[0051] The cheek guard 5 is made of a material selected from resin and plastic. The soft rubber lip guard 4 is adapted to the shape of the alveolar bone in the front of the maxilla, parallel to the soft tissue surface of the alveolar bone and away from the tissue surface. The thickness of the soft rubber lip guard 4 is 3 mm, which fully meets the oral covering needs of children. The design of the tree-branch-shaped reinforcement rod 2 helps to enhance the overall structure of the appliance, making it more stable in the oral cavity and not easy to fall off or deform due to oral activities or external forces. This stability not only ensures that the appliance can continue to play an effective role, but also improves the wearing comfort of the patient and reduces the trouble caused by loose or uncomfortable appliances. In addition, the tree-branch-shaped reinforcement rod may also improve the correction efficiency by optimizing the mechanical transmission path of the appliance, and by reasonably distributing the correction force, the teeth and jaws can be corrected more effectively in a shorter time, thereby shortening the entire correction cycle.

[0052] It can accurately transmit the correction force to the target teeth and jaws, avoiding the dispersion and waste of force. By reasonably distributing the correction force, the teeth and jaws can be moved and remodeled more specifically while being subjected to force. For example, for the common problem of mandibular protrusion in Angle Class III malocclusion, the tree-branch reinforcement rod can accurately apply the correction force of the maxilla to the maxilla, promote the growth of the maxilla and the movement of the front teeth, thereby correcting the crossbite in a shorter time, achieving better correction results, and greatly shortening the entire correction cycle.

[0053] Example 4

[0054] Reference Figure 4 , the difference between the present embodiment 4 and the embodiment 1 is that the present embodiment 4 further comprises: two array reinforcement rods 8 are installed on the maxillary labial arch 3, one array reinforcement rod 8 on the same side is covered in a soft rubber lip stopper 4 on the same side, a support rod 1 is installed in the cheek screen 5, and the mandibular labial arch 6 and the maxillary labial arch 3 are made of medical stainless steel wire. The stainless steel wire has good strength and toughness and is used to ensure the stability and durability of the orthodontic appliance. The selection of this metal material fully considers the durability of the orthodontic appliance and its impact on the oral environment, so that it can meet various needs during the treatment process;

[0055] The cheek shield 5 is made of a material selected from resin and plastic. The soft rubber lip guard 4 is adapted to the shape of the alveolar bone in the front of the maxilla, parallel to the soft tissue surface of the alveolar bone and away from the tissue surface. The thickness of the soft rubber lip guard 4 is 3 mm, which fully meets the oral covering requirements of children. The design of the array reinforcement rod 8 is used to enhance the overall structure of the appliance, making it more stable in the oral cavity and not easy to fall off or deform.

[0056] The array reinforcement rod is composed of multiple rod-like structures arranged in a certain pattern. This arrangement forms a strong support network that can resist various forces in the mouth from multiple directions. When the oral muscles move or are subjected to external collisions, the array reinforcement rod can quickly disperse and absorb the force to keep the orthodontic appliance in its original shape and position. It also cooperates very cleverly with the soft rubber lip stopper. By being wrapped in the soft rubber lip stopper, the stability of the lip stopper is further enhanced, thereby better blocking the abnormal perioral muscle force and ensuring the smooth progress of the correction process.

[0057] Example 5

[0058] Reference Figure 5 The difference between this embodiment 5 and embodiment 1 is that this embodiment 5 also includes two plastic lip guards 9 fixed through the maxillary lip arch 3. By wearing it for a long time, the plastic lip guard can use its own structural characteristics to effectively limit the functional pressure generated by the abnormal perioral muscles, thereby eliminating the restriction of these muscles on the growth of teeth, alveolar bones and jaws. In this way, the teeth and alveolar bones can grow and develop naturally and normally. In addition, the plastic lip guard can also improve bad habits such as sucking and biting the lips. When the patient tries to suck and bit the lips, the plastic lip guard will produce a certain resistance to remind the patient to change this bad behavior. As the wearing time increases, the patient will gradually adapt to the state without these bad habits, thereby fundamentally eliminating some of the causes of malocclusion and further improving the treatment effect.

[0059] Example 6

[0060] Reference Figure 6 and Figure 7 As shown, the difference between this embodiment 6 and embodiment 1 is that this example also includes that a bioactive ceramic coating 10 is provided on one side of the cheek shield 5, and a plurality of micron-sized guide grooves 11 are evenly spaced on one side of the cheek shield 5. The bioactive ceramic coating releases calcium and phosphorus ions to promote local bone remodeling and enhance the treatment effect. A biofunctional curved surface is engraved on the inner side of the cheek shield 5 by a CNC machine tool, and micron-sized guide grooves are formed on the inner surface of the cheek shield 5 to improve the flow of saliva and the self-cleaning effect.

[0061] The bioactive ceramic coating adopts gradient composite ceramic material, hydroxyapatite and zirconium oxide nanoparticle composite system, and forms a coating with a thickness of 50-100μm by sol-gel spraying. The calcium and phosphorus ion sustained release mechanism: the nanoporous structure in the coating can realize calcium (Ca 2+ ), phosphorus (PO4 3- ) controlled release of ions (daily release 0.2-0.5 mg / cm 2 ), promoting local bone remodeling and mineralization deposition.

[0062] Bioactivity enhancement: The coating surface is treated with plasma to form a micro-nano structure, increasing the specific surface area (up to 200-300m 2 / g), increasing the osteoblast adhesion rate to 1.8 times that of ordinary coatings.

[0063] Osteoinductivity: The composition of hydroxyapatite is similar to the inorganic phase of natural bone tissue. It adsorbs osteoblast-related proteins (such as BMP-2 and OPN) through surface charge and activates the osteoblast differentiation pathway.

[0064] Antibacterial assistance: Zirconia nanoparticles can inhibit the formation of biofilm of Streptococcus mutans and reduce the incidence of gingival inflammation around the orthodontic appliance. Clinical data show that the infection rate is reduced by 37%.

[0065] Saliva diversion mechanism: The diversion groove forms a directional liquid film flow through the synergistic effect of capillary effect and gravity, improving the efficiency of oral self-cleaning7.

[0066] Pressure buffering: The arc design of the groove bottom (radius of curvature R = 0.1-0.3mm) can disperse the buccal muscle pressure. Clinical tests have shown that the incidence of mucosal pressure sores is reduced by 52%.

[0067] Example 7

[0068] Reference Figure 8 The difference between the present embodiment 8 and the embodiment 1 is that the present embodiment 8 further includes a vestibular shield pressure sensor 12 installed in the cheek shield 5, and the vestibular shield pressure sensor is used to screen the sleep apnea syndrome, so as to achieve the coordinated treatment of malocclusion and respiratory disorders;

[0069] Using MEMS technology, a 64-channel piezoresistive sensor array is integrated in the vestibular shield area of ​​the cheek screen 5, which can monitor the three-dimensional pressure distribution in the range of 0.1-5N in real time;

[0070] The sensor surface is covered with a medical-grade silicone protective layer (thickness 0.3mm), which is biocompatible and ISO10993 certified to avoid mucosal irritation;

[0071] Based on the convolutional neural network (CNN), an apnea feature recognition model was developed to automatically screen obstructive / central apnea events through changes in pressure waveform frequency (0.5-40Hz) and amplitude (±0.2kPa), with an accuracy rate of 93.7%.

[0072] The sensor data is transmitted to the mobile APP via Bluetooth 5.0 to generate real-time curves of the airway stenosis index (ANSI) and apnea-hypopnea index (AHI).

[0073] In the present invention, the wearing time of the orthodontic appliance is divided into two stages: initial wearing and treatment. During the initial wearing, the appliance is worn for 4-6 hours a day within half a month, and the patient is asked to practice lip closure training and speaking. During the treatment stage, the appliance is worn for 12 hours a day (mainly at night). During this period, the lip guard should be appropriately adjusted to expand toward the lip side to stimulate the growth of the maxilla. The clinical treatment takes about 6 months, and the occlusion is reconstructed. The treatment process can be completed in about 10 months.

[0074] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A highly stable Angle III malocclusion appliance, comprising a mandibular labial arch (6), characterized in that: The upper end of the mandibular labial arch (6) is connected to the maxillary labial arch (3), cheek shields (5) are respectively installed at the connecting points of the two ends of the mandibular labial arch (6) and the maxillary labial arch (3), and two soft rubber lip guards (4) are installed on the maxillary labial arch (3).

2. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: A support rod (1) is installed in the cheek shield (5), and the cheek shield (5) is made of a material selected from the group consisting of resin and plastic.

3. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: The mandibular lip arch (6) and the maxillary lip arch (3) are made of medical stainless steel wire. The soft rubber lip guard (4) is adapted to the shape of the anterior alveolar bone of the maxilla, parallel to the soft tissue surface of the alveolar bone and away from the tissue surface. The thickness of the soft rubber lip guard (4) is 2-5 mm.

4. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: One side of the cheek shield (5) is provided with a bioactive ceramic coating (10).

5. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: A plurality of micrometer-level guide grooves (11) are arranged at equal intervals on one side of the cheek shield (5).

6. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: A vestibular shield pressure sensor (12) is installed in the cheek shield (5).

7. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: A plurality of arc-shaped reinforcement rods (7) are installed on the maxillary labial arch (3), and the arc-shaped reinforcement rods (7) are arranged in groups of two. The arc-shaped reinforcement rods (7) are wrapped in a soft rubber lip stopper (4).

8. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: Two tree-branch-shaped reinforcement rods (2) are installed on the maxillary labial arch (3), and one tree-branch-shaped reinforcement rod (2) on the same side is covered in a soft rubber lip stopper (4) on the same side.

9. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: Two array reinforcement rods (8) are installed on the maxillary labial arch (3), and one array reinforcement rod (8) on the same side is covered in a soft rubber lip stopper (4) on the same side.

10. The highly stable Angle Class III malocclusion appliance according to claim 1, characterized in that: Two plastic lip stops (9) are fixedly passed through the maxillary labial arch (3).

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