Functional appliance for high-angle mandibular retraction patient

Abstract

The embodiment of the utility model provides a functional appliance for a high-angle mandibular retraction patient. The functional appliance comprises an upper jaw appliance, a lower jaw appliance, a head cap and a hooking part, the maxillary appliance is provided with a first induction inclined plane, a first adjacent hook, a retention snap ring and a hook; the first induction inclined surface and the first adjacent hook are arranged at the position of the upper bicuspid; the retention snap ring is arranged at the position of a first molar of the upper jaw; the hooks are arranged at the positions of lateral incisor teeth and upper canine teeth of the upper jaw; the lower jaw appliance is provided with a second induction inclined surface and a second adjacent hook; the second induction inclined surface is arranged at the position of the lower bicuspid and is matched with the first induction inclined surface; the second adjacent hook is arranged at the position of the lower bicuspid; the head cap is worn on the head of a corrected person; one end of the hooking component is connected with the head cap, and the other end of the hooking component is connected with the hook. The technical effects of increasing vertical control, lowering the maxillary dentition, adjusting the occlusal plane and improving the growth type of high-angle teenager patients can be achieved while the growth and development of the mandible are guided.

Description

Technical Field

[0001] The utility model relates to the technical field of medical correction, in particular to a medical correction device for oral deformity, and more specifically to a functional corrector for patients with high-angle mandibular retrusion. Background Art

[0002] Many adolescent children have an obvious tendency of mandibular retraction before the developmental period due to genetic or acquired factors such as mouth breathing and bad habits. Some malocclusions may even affect the normal development of the soft and hard tissues of the maxillofacial region. If such patients are not treated in time, it will have a great impact on the development of the mandible. Therefore, in clinical diagnosis and treatment, for adolescent patients with mandibular retraction in the late stage of replacement dentition or the early stage of permanent dentition, early functional correction can be used to intervene in developmental deformities and improve growth patterns. Functional correction is an important part of orthodontic treatment. Functional appliances can promote normal growth and development of the craniofacial region by regulating the muscle function of the maxillofacial region, so as to achieve the purpose of correcting tooth and jaw deformities.

[0003] The commonly used functional appliance for treating mandibular retrusion is the twin-block. Common twin-block appliances have the following problems: 1. They have no vertical control over the dentition; 2. They are only suitable for patients with low angles or even angles, and are not suitable for patients with high angles; 3. The lower height is easy to lengthen after wearing. The lower height means the height of the lower 1 / 3 of the face, the distance from the bottom of the nose to the chin point. "The lower height is easy to lengthen" means "the height of the lower 1 / 3 of the face is easy to lengthen"; the mandibular plane angle (FMA) increases, causing the mandible to rotate clockwise. For patients with mandibular retrusion, clockwise rotation is very unfavorable and will aggravate the tendency of mandibular retrusion; 4. Lack of control over the anterior teeth, which is easy to deepen the anterior overbite; 5. The traditional twin-block appliance may make the lower anterior teeth more labially inclined during wearing, which is risky for patients with thin labial alveolar bones, and the labial inclination of the lower anterior teeth is not conducive to the correction of mandibular retrusion.

[0004] Those skilled in the art are in urgent need of developing a functional orthodontic appliance suitable for patients with high-angle mandibular retrusion to expand the scope of application of the orthodontic appliance. Summary of the invention

[0005] In view of this, the technical problem to be solved by the utility model is to provide a functional orthodontic appliance for patients with high-angle mandibular retrusion, which solves the problem that the existing bimaxillary orthodontic appliance has no vertical control effect on the dentition; it is only suitable for patients with low angles and even angles, and is not suitable for patients with high angles.

[0006] In order to solve the above technical problems, the specific embodiment of the utility model provides a functional appliance for patients with high-angle mandibular retrusion, the functional appliance comprising:

[0007] A maxillary appliance, wherein the maxillary appliance is provided with a first induction bevel, a first interproximal hook, a retention clasp and a hook; the first induction bevel and the first interproximal hook are arranged at the position of the upper bicuspids; the retention clasp is arranged at the position of the maxillary first molar; the hook is arranged at the position of the maxillary lateral incisor and the upper canine;

[0008] A mandibular appliance, wherein the mandibular appliance is provided with a second induction bevel and a second interproximal hook; the second induction bevel is arranged at the position of the lower bicuspids and cooperates with the first induction bevel to guide the mandibular protrusion; the second interproximal hook is arranged at the position of the lower bicuspids;

[0009] A head cap, the head cap being worn on the head of a person being corrected; and

[0010] A hook and pull component, one end of which is connected to the head cap by an elastic traction member, and the other end of which is connected to the hook, is used to apply an upward and backward corrective force to the maxilla, increase the vertical control of the patient's dentition, and depress the maxillary dentition.

[0011] Optionally, the second inducing slope is located in front of the first inducing slope, and a contact slope between the first inducing slope and the second inducing slope is inclined from bottom to top toward the front.

[0012] Optionally, a contact slope between the first inducing slope and the second inducing slope forms an angle of 45° with the vertical direction.

[0013] Optionally, the maxillary appliance is further provided with an upper anterior incisor cap, and the mandibular appliance is further provided with a lower anterior incisor cap; the upper anterior incisor cap and the lower anterior incisor cap can correct the deep overbite of the anterior teeth while depressing the maxillary dentition.

[0014] Optionally, the maxillary appliance is configured to be composed of two parts, the two parts of the maxillary appliance are symmetrical about the mid-palatal suture, and a maxillary expander is provided at the mid-palatal suture between the two parts of the maxillary appliance; the maxillary expander is used to expand the two parts of the maxillary appliance toward both sides of the mid-palatal suture, thereby widening the maxillary dental arch.

[0015] Optionally, the maxillary appliance includes an upper base, which is adapted to the upper palate of the oral cavity; the upper base is configured to be two parts, the two parts of the upper base are symmetrical about the mid-palatal suture, and the first induction slope, the first interproximal hook, the retention clasp and the hook are symmetrically arranged on the two parts of the upper base respectively; the maxillary expander is arranged between the two parts of the upper base, for expanding the two parts of the upper base to both sides of the mid-palatal suture.

[0016] Optionally, the mandibular appliance comprises a lower base, the lower base is symmetrical about a midline, and the second inducing slope and the second interproximal hook are symmetrically arranged on the lower base.

[0017] Optionally, the upper base and the lower base are made of resin material; the first interproximal hook, the second interproximal hook, the retaining clasp and the hook are formed by bending stainless steel wire; the first interproximal hook, the retaining clasp and the hook are embedded and fixed in the upper base; the second interproximal hook is embedded and fixed in the lower base.

[0018] Optionally, the hooking component is a J hook, and the J hook is formed by bending stainless steel wire.

[0019] According to the above-mentioned embodiment of the utility model, the first induction slope provided by the maxillary appliance and the second induction slope provided by the mandibular appliance cooperate with each other to guide the mandible to protrude and promote the growth and development of the mandible to correct the mandibular retraction. At the same time, one end of the hook component is connected to the head cap through an elastic traction member, and the other end of the hook component is connected to the hook of the maxillary appliance, which is used to increase the vertical control of the maxilla and apply upward and backward correction force to depress the maxillary dentition. It can at least partially solve the problem in the related art that the bimaxillary appliance has no vertical control effect on the dentition; it is only suitable for patients with low angles and even angles, and is not suitable for patients with high angles. Therefore, it can achieve the technical effect of lowering the maxillary dentition and adjusting the occlusal plane while guiding the growth and development of the mandible. It can be applied to adolescent patients with high angles to improve the growth type.

[0020] It should be understood that the above general description and the following specific embodiments are only exemplary and illustrative and are not intended to limit the scope of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings below are a part of the specification of the present utility model, which illustrate exemplary embodiments of the present utility model. The accompanying drawings together with the description of the specification are used to explain the principle of the present utility model.

[0022] Figure 1 A schematic diagram of the occlusal surface structure of a maxillary appliance in a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model.

[0023] Figure 2 A schematic diagram of the occlusal surface structure of a mandibular appliance in a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model.

[0024] Figure 3 A side structural schematic diagram of a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model in a wearing state.

[0025] Figure 4A side structure enlarged schematic diagram of a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model is shown in the wearing state.

[0026] Description of reference numerals:

[0027] 1 Maxillary appliance 2 Mandibular appliance

[0028] 3 head caps 4 hook pull parts

[0029] 5 First induction bevel 6 First interproximal hook

[0030] 7 retaining ring 8 hook

[0031] 9 Second induction bevel 10 Second interproximal hook

[0032] 11 Upper front teeth incisor cap 12 Lower front teeth incisor cap

[0033] 13 maxillary expander 14 upper base

[0034] 15. Lower base DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clearly understood, the spirit of the contents disclosed in the present invention will be clearly explained with the accompanying drawings and detailed descriptions below. After understanding the embodiments of the contents of the present invention, any technician in the relevant technical field can change and modify the contents of the present invention according to the techniques taught by the contents of the present invention without departing from the spirit and scope of the contents of the present invention.

[0036] The exemplary embodiments and descriptions of the present invention are used to explain the present invention, but are not intended to limit the present invention. In addition, the same or similar reference numerals used in the drawings and embodiments are used to represent the same or similar parts.

[0037] The terms “first”, “second”, etc. used in this document do not particularly refer to an order or sequence, nor are they used to limit the present invention. They are only used to distinguish elements or operations described with the same technical terms.

[0038] The directional terms used in this document, such as up, down, left, right, front or back, etc., are only used to refer to the directions of the drawings. Therefore, the directional terms used are used to illustrate and not to limit the present invention.

[0039] The words “include,” “including,” “have,” “contain,” etc. used in this document are open-ended terms, meaning including but not limited to.

[0040] As used herein, "and / or" includes any or all combinations of the items described.

[0041] As used herein, “plurality” includes “two” and “more than two”; as used herein, “plurality groups” includes “two groups” and “more than two groups”.

[0042] The terms "substantially" and "approximately" used herein are used to modify any quantity or error that may vary slightly, but these slight changes or errors do not change their essence. Generally speaking, the range of slight changes or errors modified by such terms may be 20% in some embodiments, 10% in some embodiments, 5% in some embodiments, or other values. Those skilled in the art should understand that the aforementioned values ​​can be adjusted according to actual needs and are not limited thereto.

[0043] All terms (including technical and scientific terms) used herein have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0044] In the case of using expressions such as "at least one of A, B, and C, etc.", it should generally be interpreted in accordance with the meaning of the expression generally understood by those skilled in the art (for example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.). In the case of using expressions such as "at least one of A, B, or C, etc.", it should generally be interpreted in accordance with the meaning of the expression generally understood by those skilled in the art (for example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.). Those skilled in the art should also understand that any transitional conjunctions and / or phrases that substantially indicate two or more optional items, whether in the specification, claims, or drawings, should be understood to give the possibility of including one of these items, either of these items, or both of these items. For example, the phrase "A or B" should be understood to include the possibilities of "A" or "B", or "A and B".

[0045] Figure 1 A schematic diagram of the occlusal surface structure of a maxillary appliance in a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model. Figure 2 A schematic diagram of the occlusal surface structure of a mandibular appliance in a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model.

[0046] In this application document, the following terms have the following meanings:

[0047] Incisor: commonly known as front teeth, located on the upper and lower jaws at the front of the mouth, arranged in an arc shape, with four pairs of eight teeth in total on the upper, lower, left and right sides.

[0048] Canines: Located near the corners of the mouth, there are four of them, one on the top, one on the bottom, one on the left and one on the right, which support the lips and make them fuller.

[0049] Bicuspids: Located behind the canines, also known as premolars or premolars. Bicuspids are next to the canines, with 2 on each canine, for a total of 8 on the upper and lower sides.

[0050] Molars: Located behind the bicuspids, there are 12 in total (at least 8) on the upper, lower, left and right sides.

[0051] See also Figure 1 and Figure 2 As shown, the functional appliance for patients with high-angle mandibular retrusion may include a maxillary appliance 1, a mandibular appliance 2, a head cap 3 and a hook component 4.

[0052] Among them, the maxillary appliance 1 is provided with a first induction bevel 5, a first interproximal hook 6, a retention clasp 7 and a hook 8. The first induction bevel 5 and the first interproximal hook 6 are arranged at the position of the upper bicuspids; the retention clasp 7 is arranged at the position of the maxillary first molar; the hook 8 is arranged at the position of the maxillary lateral incisor and the upper canine. The above-mentioned positions all refer to the positional relationship between the maxillary appliance 1 and the patient's teeth after the patient wears it, and the same applies below. The function of the first interproximal hook 6 and the retention clasp 7 is to fix the maxillary appliance 1 on the upper row of teeth. The function of the hook 8 is to allow the hooking component 4 to be hooked and connected.

[0053] The mandibular appliance 2 cooperates with the maxillary appliance 1, and the mandibular appliance 2 is provided with a second induction bevel 9 and a second interproximal hook 10; the second induction bevel 9 is arranged at the position of the lower bicuspids, and cooperates with the first induction bevel 5 to guide the mandible to protrude forward; that is, when the first induction bevel 5 contacts the second induction bevel 9, the mandibular appliance will move forward along the induction bevel, so that the mandible is forced to protrude forward, guiding the mandibular growth and development to correct the mandibular retraction. The second interproximal hook 10 is arranged at the position of the lower bicuspids, and the function of the second interproximal hook 10 is to fix the mandibular appliance 2 on the lower teeth.

[0054] The head cap 3 is used to be worn on the head of the person being corrected. One end of the hook and pull component 4 is connected to the head cap 3 by an elastic traction member such as an elastic rubber band, and the other end of the hook and pull component 4 is connected to the hook 8 of the maxillary appliance 1, which is used to apply an upward and backward corrective force to the maxilla and depress the maxillary dentition. When in use, the maxillary appliance 1 and the mandibular appliance 2 are worn in the patient's mouth all day except for eating and brushing teeth, and the head cap 3 and the hook and pull component 4 are worn in non-social occasions and at night. After wearing the hook and pull component 4 and the head cap 3, it is possible to apply an upward and backward corrective force to the maxilla, and use the maxillary appliance 1 and the mandibular appliance 2 to guide the mandible to protrude while depressing the maxillary dentition, thereby increasing the vertical control of the dentition, adjusting the occlusal plane angle, and improving the growth type.

[0055] The principle of the hook and pull component 4 and the head cap 3 is: the hook and pull component 4 is pulled at a high position outside the mouth, and two hooks 8 are formed at the position of the maxillary lateral incisor and the upper canine. The hook and pull component 4 is hung on the hook 8, and then connected to the high head cap 3 with an elastic ring. With the help of extraoral force high-position traction, the maxillary dentition is pressed upward and backward. It is suitable for patients with high angles who need vertical control and patients with deep overbite of maxillary anterior teeth.

[0056] Figure 3 A side structural schematic diagram of a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model in a wearing state. Figure 4 A side structure enlarged schematic diagram of a functional appliance for patients with high-angle mandibular retrusion provided in a specific embodiment of the utility model is shown in the wearing state.

[0057] See also Figure 3 and Figure 4 As shown, in the embodiment of the utility model, the second inducing slope 9 is located at the front side of the first inducing slope 5. The front side here means that the second inducing slope 9 is closer to the front of the oral cavity than the first inducing slope 5. The contact slope between the first inducing slope 5 and the second inducing slope 9 is inclined from bottom to top toward the front side. Figure 4 As shown. In this way, when the upper and lower jaws are in occlusion, the lower jaw will be forced to extend forward along the contact slope that tilts from bottom to top toward the front side, thereby guiding the lower jaw forward and promoting the growth and development of the mandibular bone. Preferably, the contact slope between the first inductive slope 5 and the second inductive slope 9 is at an angle of 45° to the vertical direction. When the upper and lower jaws are in occlusion, the 45° angle can make the contact slope between the first inductive slope 5 and the second inductive slope 9 occlude smoothly.

[0058] In the embodiment of the utility model, the maxillary appliance 1 is further provided with an upper anterior incisor cap 11, and the mandibular appliance 2 is further provided with a lower anterior incisor cap 12. The upper anterior incisor cap 11 and the lower anterior incisor cap 12 are respectively located at the positions of the upper and lower incisors. By providing the upper anterior incisor cap 11 and the lower anterior incisor cap 12, the deep overbite caused by the hanging anterior teeth of the traditional bimaxillary appliance can be avoided, and the deep overbite of the anterior teeth can be corrected while lowering the maxillary dentition.

[0059] In an embodiment of the utility model, the maxillary appliance 1 can be set to two parts, the two parts of the maxillary appliance 1 are symmetrical about the mid-palatal suture, and a maxillary expander 13 can be provided at the mid-palatal suture between the two parts of the maxillary appliance 1; the maxillary expander 13 is used to expand the two parts of the maxillary appliance 1 to both sides of the mid-palatal suture, which can widen the maxillary dental arch. In this embodiment, an expander can be added between the two parts of the maxillary appliance 1 according to the needs of the patient, such as a slow expander, and the arch is expanded twice a week. After each expansion, the patient will feel the expansion force of the dentition to the left and right sides when wearing it. After wearing it for a period of time, the dental arch will expand to the corresponding position, which can improve the narrow dental arch.

[0060] Specifically, the maxillary appliance 1 includes an upper base 14, which is adapted to the upper palate of the oral cavity; the upper base 14 is arranged in two parts, the two parts of the upper base 14 are symmetrical about the mid-palatal suture, the first induction slope 5, the first interproximal hook 6, the retaining clasp 7 and the hook 8 are symmetrically arranged on the two parts of the upper base 14 respectively; the upper base 14, as a carrier, can be made according to the patient's oral model and adapted to the patient's upper teeth. The maxillary expander 13 is arranged between the two parts of the upper base 14, and is used to expand the two parts of the upper base 14 to both sides of the mid-palatal suture.

[0061] In the embodiment of the utility model, the mandibular appliance 2 includes a lower base 15, the lower base 15 is symmetrical about the midline, and the second inductive slope 9 and the second interproximal hook 10 are symmetrically arranged on the lower base 15. The lower base 15, as a carrier, can be made according to the patient's oral model and adapted to the patient's lower teeth.

[0062] In an embodiment of the utility model, the upper base 14 and the lower base 15 are made of resin material; the first interproximal hook 6, the second interproximal hook 10, the retaining clip 7 and the hook 8 are formed by bending stainless steel wire; the first interproximal hook 6, the retaining clip 7 and the hook 8 are embedded and fixed in the upper base 14; the second interproximal hook 10 is embedded and fixed in the lower base 15.

[0063] Specifically, the hooking component 4 is a J hook, and the J hook is formed by bending a stainless steel wire.

[0064] When the upper base 14 is made of resin, a model with the same shape as the upper jaw and upper teeth of the patient is first made, and then the corresponding first interproximal hook 6, the retaining clasp 7, the hook 8 and the maxillary expander 13 are positioned at the corresponding positions in the model, and then the base and the induced slope of the upper jaw are made by the self-curing plastic coating method, and finally the upper jaw appliance 1 is formed by grinding. When the lower base 15 is made of resin, a model with the same shape as the lower teeth of the patient is first made, and then the corresponding second interproximal hook 10 is positioned at the corresponding positions in the model, and then the base and the induced slope of the lower jaw are made by the self-curing plastic coating method, and finally the lower jaw appliance 2 is formed by grinding.

[0065] The working process and principle of the functional appliance of the utility model are as follows: the patient wears the maxillary appliance 1 and the mandibular appliance 2, and these two components are worn all day except for eating and brushing teeth. The upper base 14 of the maxillary appliance 1 is fixed to the upper teeth through the first interproximal hook 6 and the retention clasp 7; the lower base 15 of the mandibular appliance 2 is fixed to the lower teeth through the second interproximal hook 10; during the patient's occlusion, the first induction bevel 5 on the maxillary appliance 1 cooperates with the second induction bevel 9 of the mandibular appliance 2, and the mandible is forced to extend forward during occlusal contact, so that the mandible is in a forward position, guiding the growth and development of the mandible. Wearing the J hook and the head cap 3 in non-social occasions and at night can apply upward and backward orthopedic forces to the maxilla, and use the maxillary appliance 1 and the mandibular appliance 2 to guide the mandible to extend forward while depressing the maxillary dentition, increase the vertical control of the dentition, adjust the occlusal plane angle, and improve the growth type.

[0066] Those skilled in the art will appreciate that the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways, even if such combinations and / or combinations are not explicitly described in the present invention. In particular, the features described in the various embodiments and / or claims of the present invention may be combined and / or combined in various ways without departing from the spirit and teachings of the present invention. All of these combinations and / or combinations fall within the scope of the present invention.

[0067] The embodiments of the present invention are described above. However, these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present invention is defined by the attached claims and their equivalents. Without departing from the scope of the present invention, a person skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present invention.

Claims

1. A functional appliance for patients with high-angle mandibular retrusion, characterized in that: The functional appliance includes: A maxillary orthodontic appliance (1), the maxillary orthodontic appliance (1) being provided with a first induction bevel (5), a first interproximal hook (6), a retention clasp (7) and a hook (8); the first induction bevel (5) and the first interproximal hook (6) are arranged at the position of the upper bicuspids; the retention clasp (7) is arranged at the position of the maxillary first molar; the hook (8) is arranged at the position of the maxillary lateral incisor and the upper canine; A mandibular orthodontic appliance (2), wherein the mandibular orthodontic appliance (2) is provided with a second inducing inclined surface (9) and a second interproximal hook (10); the second inducing inclined surface (9) is arranged at the position of the lower bicuspids and cooperates with the first inducing inclined surface (5) to guide the mandibular protrusion; the second interproximal hook (10) is arranged at the position of the lower bicuspids; A head cap (3), the head cap (3) being worn on the head of a person being corrected; and A hooking component (4), one end of which is connected to the head cap (3) by means of an elastic traction member, and the other end of which is connected to the hook (8), for applying an upward and backward orthopedic force to the maxilla, thereby increasing the vertical control over the patient's dentition and depressing the maxillary dentition.

2. The functional appliance for patients with high-angle mandibular retrusion according to claim 1, characterized in that: The second inducing inclined surface (9) is located at the front side of the first inducing inclined surface (5), and the contact inclined surface between the first inducing inclined surface (5) and the second inducing inclined surface (9) is inclined from bottom to top toward the front side.

3. The functional appliance for patients with high-angle mandibular retrusion according to claim 2, characterized in that: The contact slope between the first inducing slope (5) and the second inducing slope (9) forms an angle of 45° with the vertical direction.

4. The functional appliance for patients with high-angle mandibular retrusion according to claim 1, characterized in that: The maxillary appliance (1) is further provided with an upper front teeth incisor cap (11), and the mandibular appliance (2) is further provided with a lower front teeth incisor cap (12); the upper front teeth incisor cap (11) and the lower front teeth incisor cap (12) can correct the deep overbite of the front teeth while lowering the maxillary dentition.

5. The functional appliance for patients with high-angle mandibular retrusion according to claim 1, characterized in that: The maxillary appliance (1) is configured as two parts, the two parts of the maxillary appliance (1) are symmetrical about the mid-palatal suture, and a maxillary expander (13) is provided at the mid-palatal suture between the two parts of the maxillary appliance (1); the maxillary expander (13) is used to expand the two parts of the maxillary appliance (1) toward both sides of the mid-palatal suture, thereby widening the maxillary dentition.

6. The functional appliance for patients with high-angle mandibular retrusion according to claim 5, characterized in that: The maxillary appliance (1) comprises an upper base (14), which is adapted to the upper palate of the oral cavity; the upper base (14) is arranged in two parts, the two parts of the upper base (14) are symmetrical about the mid-palatal suture, the first induction slope (5), the first interproximal hook (6), the retaining clasp (7) and the hook (8) are symmetrically arranged on the two parts of the upper base (14); the maxillary expander (13) is arranged between the two parts of the upper base (14), and is used to expand the two parts of the upper base (14) to both sides of the mid-palatal suture.

7. The functional appliance for patients with high-angle mandibular retrusion according to claim 6, characterized in that: The mandibular orthodontic appliance (2) comprises a lower base (15), the lower base (15) is symmetrical about the midline, and the second inducing inclined surface (9) and the second interproximal hook (10) are symmetrically arranged on the lower base (15).

8. The functional appliance for patients with high-angle mandibular retrusion according to claim 7, characterized in that: The upper base (14) and the lower base (15) are made of resin material; the first interproximal hook (6), the second interproximal hook (10), the retaining clasp (7) and the hook (8) are formed by bending stainless steel wire; the first interproximal hook (6), the retaining clasp (7) and the hook (8) are embedded and fixed in the upper base (14); the second interproximal hook (10) is embedded and fixed in the lower base (15).

9. The functional appliance for patients with high-angle mandibular retrusion according to claim 8, characterized in that: The hooking component (4) is a J hook, and the J hook is formed by bending a stainless steel wire.

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