CN110063801A - A kind of invisible orthotic device - Google Patents

Abstract

The present invention provides an invisible appliance, including a single-jaw appliance and/or a double-jaw appliance. The single-jaw appliance includes a maxillary brace and functional accessories. The double-jaw appliance includes a double-jaw brace and functional accessories. The mouthpiece includes a maxillary mouthpiece, a mandibular mouthpiece, and a connecting bite plate, and the functional accessories are selected from at least one of a palatal side plate, a lingual guide wing, an anterior bite opening assembly, and an extra-oral traction assembly; the anterior bite opening assembly includes a gingival bulge, Afterburning pad; the extraoral traction component includes a lateral tube and an extraoral traction arch, and each component is made of transparent or translucent materials, so that the appliance is invisible; the appliance of the present invention has a wide clinical application range and is suitable for bone surface type Class II malocclusion and mild class III malocclusion; the present invention can provide an efficient orthodontic force system in the three-dimensional direction, especially the orthodontic efficacy in the vertical direction is greatly improved.

Description

an invisible appliance

technical field

The invention belongs to the technical field of stomatology, and in particular relates to an invisible appliance.

Background technique

Malocclusion is a deformity of the teeth and jaws caused by congenital genetic factors and/or acquired environmental factors during the growth and development of children, manifested as misaligned teeth, maxillofacial deformities, etc. and function. Osteofacial type II and mild type III malocclusion are common clinical malocclusions, and the main pathogenesis is the imbalance of the sagittal position of the maxilla and/or dentition. Among them, the osteofacial type II deformity is manifested by underdevelopment of the mandible, with or without maxillary hyperplasia; the mild type III malocclusion is manifested as a mild type III molar relationship, often accompanied by anterior crossbite , with or without mild asymmetry of the sagittal position of the maxilla and maxilla. During the growth and development of children, abnormal dental occlusion often exists along with abnormal jaw development, and occlusal interference is the main acquired environmental factor that contributes to the above-mentioned jaw deformities. For example, inversion of the upper incisors and deep overbite will limit the development of the mandible, causing or aggravating the skeletal facial type II deformity;

For such patients, treatment should be performed in the early stage of growth and development to relieve occlusal interference, guide the growth and development of the upper and lower jaws, and coordinate the sagittal position of the upper and lower jaws, so as to establish a neutral occlusion and improve the profile. The traditional treatment approach is carried out in two steps, the first step is to use movable appliances or fixed appliances to relieve occlusal interference, and the second step to use functional appliances to guide the growth of the mandible and/or inhibit the forward growth of the maxilla. This treatment method has shortcomings such as long course of treatment, poor appliance comfort, poor aesthetics, and poor patient compliance; and functional appliances have no effect on aligning teeth, which is not conducive to the establishment of posterior occlusion, resulting in the inconvenience of patients at this stage. Aesthetics and occlusal function are poor. Compared with traditional appliances, bracket-free invisible appliances have many advantages, such as beauty, comfort, and convenience for oral hygiene maintenance. The prior art "mandibular guide CN201320028895.0" and "an invisible orthodontic device CN201720697007.2" overcome the weaknesses of traditional fixed orthodontics in terms of course of treatment and comfort, but still have the following deficiencies: 1. The scope of clinical application is limited, Applicable only to Angel's class II, skeletal face type II malocclusion, cannot treat class III malocclusion; 2, cannot control the growth of the maxilla, in the presence of vertical and/or sagittal development of the maxilla In cases with excessive tendency, the lack of maxillary growth control will obviously affect the curative effect or even lead to treatment failure; 3. The efficiency of depressing the anterior teeth to open the occlusion is low, and the treatment cycle is longer for the cases with deep overbite; 4. Nighttime The efficacy of the leading mandible is low. The patient's perioral muscles relax during sleep at night, which leads to the disengagement of the upper and lower jaws. At this time, even if the appliance is worn, it will not work. The growth hormone secretes vigorously during sleep, which is to guide the growth and development of the jaw. golden hour. These deficiencies limit the clinical application scope and orthodontic efficacy of existing invisible orthodontic devices.

In this article, "occlusion" is a professional vocabulary of stomatology. It is occlusion in English. Teeth and occlusion are the left and right parts of a word. This word cannot be found in the ordinary font library, so it is written as "occlusion" separately.

SUMMARY OF THE INVENTION

In view of the shortcoming of the above-mentioned prior art, the purpose of the present invention is to provide a kind of invisible appliance, which overcomes the many defects existing in the prior art, improves the rectification efficiency and effectiveness, expands the scope of clinical application, and simultaneously has the advantages of comfortable wearing, Beautiful appearance and other characteristics.

In order to realize the above-mentioned purpose of the invention, the technical scheme of the present invention is as follows:

An invisible appliance, including a single-jaw appliance and/or a double-jaw appliance, the single-jaw appliance includes a maxillary brace and functional accessories, the double-jaw appliance includes a double-jaw brace and a functional accessory, and the double-jaw brace includes an upper jaw A dental brace, a mandibular brace, and a connecting bite plate, the functional accessories are selected from at least one of a palatal side plate, a lingual side guide wing, an anterior bite opening assembly, and an extra-oral traction assembly;

The maxillary braces and the bimaxillary braces cover the entire dentition, or cover the dentition segment composed of single or multiple teeth in the dental arch, or cover part of the dental crown of a certain dentition segment;

The connecting mouthpiece is located between the upper jaw and the lower jaw, and connects the upper jaw and the lower jaw into one body;

The palatal side plate is connected to the palatal gingival margin of the maxillary brace and covers the maxillary palatal mucosa;

The lingual guide wings are connected to the lingual gingival margin of the mandibular mouthpiece and cover the lingual gingival mucosa of the mandible;

The anterior teeth occlusion opening assembly includes a gingival margin bulge and a force pad; the gingival margin bulge is a vacuolar bulge structure at the junction of the front end of the palatal side plate and the palatal gingival margin of the maxillary anterior teeth; the force pad is elastic a pad, which is connected with the front end of the gingival margin bulge; the front end of the forcing pad is pressed against the palatal surface of the maxillary anterior teeth;

The extra-oral traction assembly includes an outer tube and an extra-oral traction arch, the outer tube is located on the buccal side connecting the occlusal plate, the extra-oral traction arch is made of metal wire, and its inner end is inserted into the outer tube; the middle section spans the corner of the mouth area, and the outer end of the mouth is connected with the extraoral anchorage device;

The maxillary brace, the mandibular brace, the connecting bite plate, the palatal side plate, and the lingual guide wing of the invisible appliance are all made of transparent or translucent materials, so that the appliance is invisible.

The palatal side plate provides a connection part for the gingival margin bulge, and can be used to stabilize the width of the dental arch and strengthen the lateral control of the dental arch; the lingual side guide wing has the function of guiding the mandibular base bone, or strengthening the mucosa of the mandibular braces. role of support. The protuberance of the gingival margin provides the attachment site for the force pad, and can precisely regulate the force direction. The elastic thrust of the force pad can effectively tilt the lips and depress the front teeth, open the occlusion of the front teeth, and strengthen the vertical alignment of the occlusal plane. To control, correct the deep overbite, correct the anterior crossbite, remove the anterior occlusal interference, which is conducive to the establishment of normal anterior overbite coverage. The outer tube provides an attachment site for the extra-oral traction arch, which can be connected to an extra-oral anchorage device, which can effectively control the growth of the maxilla and/or the maxillary dentition in the vertical and sagittal directions, and inhibit the overgrowth of the maxilla. It is beneficial for the growth of the mandible to rotate forward and upward, thereby improving the occlusal relationship of the posterior teeth and the coverage of the anterior teeth, coordinating the positional relationship between the upper and lower jaws, and improving the occlusal function and facial aesthetics.

As a preferred mode, the gingival margin bulge can be divided into a lip-inclined type and a depressed-type bulge according to its function. The force pad at the front end of the bulge presses against the lingual fossa on the palatal side of the maxillary anterior teeth from bottom to top.

As a preferred manner, the connection between the force pad and the gingival bulge is chemical bonding or detachable mechanical connection.

As a preferred way, the width of the intensifying pad is the distance from the connection between the intensifying pad and the gingival bulge to the contact point between the intensifying pad and the palatal surface of the anterior teeth, and the width of the intensifying pad is 2 mm, or 2.5 mm, or 3 mm, or 3.5mm, or 4mm. On the same appliance, force pads of different widths can be assembled in different orthodontic steps to apply continuous or different orthodontic forces to the anterior teeth.

As a preferred mode, the connecting occlusal plate is located between the occlusal surfaces of the upper and lower jaws after occlusal reconstruction, and fixes the positions of the upper and lower jaws at the target position after occlusal reconstruction, so as to play the role of leading the lower jaw or receding the lower jaw.

As a preferred manner, the appliance includes a tooth-stabilizing type, a tooth-inducing type and a dental-orthodontic type, and the braces of the tooth-stabilizing appliance correspond to the original position of the wearer's teeth, and the space for accommodating the teeth is the same as the size of the teeth; The braces of the tooth-induction appliance correspond to the original position of the wearer's teeth, and the space for accommodating the teeth includes the space occupied by the teeth and the induction space, which can induce the teeth to erupt or move into the induction space; the dental orthodontic treatment The device includes a set of multiple appliances in a continuous sequence, and the braces and the occlusal opening components of each appliance respectively correspond to the tooth arrangement positions obtained by the digital arrangement of teeth in each step, and can move the teeth step by step.

As a preferred way, it includes an orthodontic system, the orthodontic system includes multiple sets of orthodontic appliances, and each orthodontic step is obtained according to the digital arrangement of teeth, each orthodontic step corresponds to a group of orthodontic appliances, and each set of orthodontic appliances includes a single-jaw appliance and a double-jaw appliance. There are two pairs of devices, which can be worn during the day and at night respectively. The single-jaw appliance aligns the dentition during the day while providing good aesthetics and comfort without affecting the functional movement of the mandible. The bimaxillary appliance guides the growth and development of the lower jaw and controls the growth of the upper jaw at night.

As a preferred mode, the upper jaw and/or the lower jaw has a vacuolar structure, and the corresponding tooth surface is provided with an adhesive attachment, and the outer surface of the adhesive attachment is consistent with the inner surface of the vacuole structure in shape and size, and the adhesive The attachment and the inner wall of the cavity fix the brace on the teeth through mechanical fitting.

As a preferred way, the extraoral traction bow is made of metal wire and has a bow-shaped bending, and the bow-shaped bending includes a first bending section, a second bending section, and a third bending section connected in sequence, wherein the first bending section The bending direction of the bending section is opposite to the bending direction of the second bending section, and is the same as the bending direction of the third bending section.

The beneficial effects of the present invention are as follows:

The appliance of the present invention combines the treatment of two steps of releasing the occlusal interference and guiding the growth of the jaw into one step. The occlusal opening component of the anterior teeth of the appliance of the present invention can quickly release the occlusal interference in the early stage of treatment, so as to coordinate the upper and lower jaws. The growth of bone provides a favorable environment, shortens the treatment period, and has the advantages of comfortable wearing and beautiful appearance.

The appliance of the present invention has a wide range of clinical applications, and is suitable for skeletal surface type II malocclusion and mild type III malocclusion; especially for Angel's type II high angle, and Angel's type II class II malocclusion It has high orthodontic efficacy and can effectively solve such clinical problems.

The appliance of the present invention reasonably combines the orthopedic force and the orthopedic force. The orthodontic force is gentle and continuous, which is suitable for tooth movement; while the orthodontic force is intermittent gravity, which is suitable for the growth control of the jaw or the entire dental arch. When applied to the upper jaw, it can control the growth amount and direction of the upper jaw, and can control the maxillary occlusion. flat. The orthodontic system of the invention can not only provide orthodontic force throughout the day, but also provide orthopedic force at night when the patient's growth hormone secretion is strong, and position the mandible at the position of occlusal reconstruction, thus significantly improving the orthodontic efficiency.

The appliance of the present invention can provide an efficient correction force system in the three-dimensional direction, especially the correction efficiency in the vertical direction is greatly improved. The existing invisible orthodontic technology has a weak effect on the control of the dentition in the vertical direction, and the control in this direction is particularly important for the curative effect of Angle's Class II malocclusion. The appliance combined with extraoral traction of the invention can effectively control the vertical and sagittal growth of the maxilla and/or maxillary dentition, inhibit the overgrowth of the maxilla, and facilitate the growth of the mandible to rotate forward and upward, thereby improving the relationship between the molars and the face. The profile is beautiful. The anterior occlusal opening component of the appliance of the present invention can effectively lip tilt the anterior teeth, depress the anterior teeth, effectively open the occlusion, correct the deep overbite, help to establish normal overbite coverage of the anterior teeth, and strengthen the occlusal plane vertical control.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention, wherein Figure 1 (1) is a double-jaw appliance; Figure 1 (2) is a single-jaw appliance;

Figure 2 is a schematic structural diagram of a single-jaw appliance comprising an anterior occlusal opening component of the present invention, wherein Figure 2(1) is a view of the occlusal surface of the single-jaw appliance with labially inclined anterior teeth, and Figure 2(2) is a depression of the anterior teeth The occlusal surface of the single-jaw appliance, Figure 2(3) is the sagittal view of the labial tilt-type uplift and augmentation pad, and Figure 2(4) is the sagittal view of the depression-type uplift and augmentation pad;

Fig. 3 is a schematic structural diagram of the appliance of Example 1, wherein Fig. 3(1) is a double-jaw inducer, and Fig. 3(2) is a single-jaw appliance;

Fig. 4 is the structural representation of the bimaxillary appliance of embodiment 2;

Fig. 5 is the structural representation of the bimaxillary appliance of embodiment 3;

1 is the maxillary brace, 2 is the mandibular brace, 3 is the connecting occlusal plate, 4 is the lateral tube, 5 is the extraoral traction arch, 6 is the lingual guide wing, 7 is the palatal side plate, 8 is the gingival bulge, and 9 is the afterburner. Pad, 10 is a lip-inclined bulge, 11 is a depression-type bulge, a is the width of the force pad, 51 is the first bending section, 52 is the second bending section, and 53 is the third bending section.

Detailed ways

The embodiments of the present invention are described below through specific specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention.

Comparative ratio

The traditional orthodontic method is carried out in two steps. The first step is to use a movable appliance or a fixed appliance to relieve occlusal interference, and the second step is to use a functional appliance to guide the growth of the mandible. The fixed appliance is composed of brackets and steel wires. The movable appliance and functional appliance are made of resin base and steel wire. The resin base wraps part of the steel wire and covers the oral mucosa. The steel wire is bent to form retaining structures such as retaining rings and push springs. , labial arch, induced wire and other functional structures. The above-mentioned orthodontic treatment has a long course of treatment, poor aesthetics and comfort of the appliance, and poor patient compliance.

Invisible appliances in the prior art are composed of three-dimensional orthodontic braces, mandibular leading bevel occlusal pads, and anterior teeth depression auxiliary guide plates, which have the advantages of being beautiful, comfortable, and easy to maintain oral hygiene. Defects such as the occlusal plane, the inefficiency of leading the mandible at night, and the inefficiency of depressing the anterior teeth to open the bite.

Thirty patients with bony surface type II malocclusion with deep overbite of the anterior teeth were divided into three groups to wear the invisible appliance described in Example 1 of the present invention, the traditional appliance, and the prior art invisible appliance, respectively. During the treatment, the patients were asked to score the wearing comfort (score interval 0-10 points, 0-2 points: very uncomfortable, unbearable; 2-4 points: uncomfortable, tolerable; 4-6 points: no obvious discomfort; 6-8 points: comfortable; 8-10 points: very comfortable), wearing aesthetic score (score range 0-10 points, 0-2 points: very unsightly; 2-4 points: unsightly; 4-6 points : acceptable; 6-8 points: beautiful; 8-10 points: very beautiful), the length of the course of treatment (the number of months required for the patient to complete the treatment), and the efficacy evaluation, which includes the maxillary and mandibular sagittal direction. Improvement of growth coordination (measured by cephalometric measurement of ANB angle, calculated the degree of reduction after treatment compared with before treatment, the larger the value, the better the effect), the improvement of anterior overbite (measured by measurement of anterior overbite, calculated after treatment Compared with the number of millimeters before treatment, the larger the value, the better the curative effect). Statistical data are shown in Table 1. It can be seen that for the treatment of this type of patient, the invisible appliance has the advantages of high comfort and good aesthetics. Compared with traditional orthodontic treatment and existing invisible orthodontic technology, the invisible appliance of the present invention has a The curative effect is better, the orthodontic efficacy of opening the anterior occlusion is higher, and the treatment time can be significantly shortened.

Table 1

For 27 patients with skeletal facial type II malocclusion accompanied by vertical and/or sagittal overgrowth of the maxilla, the patients were divided into three groups using the invisible appliance described in Example 2 of the present invention, traditional orthodontic treatment, existing For technical invisible aligners, patients were asked to score the wearing comfort during treatment (score range: 0-10 points, 0-2 points: very uncomfortable, unbearable; 2-4: uncomfortable, tolerable; 4-6 points : no obvious discomfort; 6-8 points: comfortable; 8-10 points: very comfortable), wearing aesthetic score (score range 0-10 points, 0-2 points: very unsightly; 2-4 points: unsightly ; 4-6 points: acceptable; 6-8 points: beautiful; 8-10 points: very beautiful), the length of the course of treatment (the number of months required for the patient to complete the treatment), and the efficacy evaluation, the efficacy evaluation items include Sagittal growth coordination improvement of maxillary and mandibular (cephalometric measurement of ANB angle, calculate the degree of reduction after treatment compared with before treatment, the larger the value, the better the curative effect), the improvement of vertical facial growth coordination (measurement of lower height/comprehensive If the ratio is high, the amount of decrease after treatment is calculated as a positive value, and the amount of increase is a negative value. The larger the positive value, the better the curative effect. The decrease is a positive value, and the increase is a negative value, and the larger the positive value, the better the curative effect). The statistical data are shown in Table 2. It can be seen that for the treatment of this type of patient, the invisible appliance of the present invention has the advantages of high comfort and good aesthetics, and can simultaneously have the advantages of short course of treatment and high vertical control efficiency. Significantly superior to traditional orthodontics and existing invisible orthodontic techniques.

Table 2

Example 1

In this embodiment, the invisible appliance described in the present invention is used to treat patients with bony surface type II malocclusion with deep overbite of anterior teeth. As shown in Figure 3, including a bimaxillary appliance and a single jaw appliance, the bimaxillary appliance includes a maxillary brace 1, a mandibular brace 2, a connecting occlusal plate 3, a lingual guide wing 6, a palatal side plate 7 and anterior occlusal opening The single-jaw appliance includes a maxillary mouthpiece 1 , a palatal side plate 7 and an anterior occlusal opening assembly, which includes a gingival margin bulge 8 and a force pad 9 . Each part of the invisible appliance is made of transparent material. The maxillary brace 1 covers the maxillary bilateral canines to the buccal-lingual side of the first molar, and the mandibular brace 2 covers the lingual side of the mandibular dentition and the labial side of the mandibular anterior region; the connecting bite plate 3 is located in the occlusal reconstruction. Between the occlusal surfaces of the upper and lower braces, the upper and lower braces are connected into one, and the positions of the upper and lower braces are fixed at the target position after occlusal reconstruction, so as to play the role of leading the mandible; the lingual guide The wing 6 is connected to the lingual gingival margin of the mandibular mouthpiece and covers the gingival mucosa of the lower jaw; the palatal side plate 7 is connected to the palatal gingival margin of the maxillary mouthpiece and covers the maxillary palatal mucosa; the gingival margin bulge 8 is the palatal side plate 7 The vacuole-like bulge structure at the junction of the front end and the gingival margin of the maxillary anterior teeth; the gingival margin bulge can be divided into lip tilt type and depression type bulge by function; the force pad is an elastic pad, and the front end of the gingival margin bulge connected. The connection mode of the force pad and the gingival margin bulge is a chemical combination or a detachable mechanical connection.

In this embodiment, the upper jaw and/or the lower jaw has a vacuolar structure, the corresponding tooth surface is provided with an adhesive attachment, and the outer surface of the adhesive attachment is consistent with the inner surface of the vacuolar structure in shape and size, The adhesive attachment and the inner wall of the vacuole fix the brace on the tooth through mechanical fitting.

In this embodiment, the invisible appliance described in the present invention is a dental appliance, which consists of a set of multiple sets of appliances in a continuous sequence. The maxillary brace 1, the gingival margin ridge 8 and the mandibular brace 2 of each set of appliances are correspondingly digitized. The tooth position of each step obtained by the arrangement of teeth can move the teeth step by step. Each set of appliances includes two pairs of single-jaw appliances and double-jaw appliances, and multiple sets of appliances in a continuous sequence together form an appliance system. In the stage of lip-inclined anterior teeth, the gingival bulge of the invisible appliance is a lip-inclined uplift, and the force pad 9 is pressed against the tongue eminence on the palatal side of the maxillary anterior teeth from back to front; in the stage of depressing the anterior teeth, the said The bulge of the gingival margin of the invisible appliance is a depression-type bulge, and the force pad 9 presses against the lingual fossa on the palatal side of the maxillary anterior teeth from bottom to top.

The use method of the invisible appliance is as follows: wearing the set of consecutive sets of appliances in steps, each step corresponds to a set of appliances, that is, one pair of single-jaw appliances and one pair of double-jaw appliances. Wear a single-jaw appliance during the day and a dual-jaw appliance in the evening and night. The single-jaw appliance can lip tilt and depress the upper front teeth during the day, while providing good aesthetics and comfort without affecting the functional movement of the mandible; the bi-jaw appliance can further lip tilt and lower the upper anterior teeth at night, and has It can fix the position of the upper and lower jaws and guide the forward growth of the lower jaw. The gingival bulge 8 of the appliance can precisely control the direction of the augmentation, and the elastic thrust of the augmentation pad 9 can continuously tilt the lips and depress the anterior teeth, so it can quickly open the occlusion of the anterior teeth in the early stage of treatment, correct the deep overbite, and release the occlusion Interference, providing a favorable environment for coordinating the growth of the upper and lower jaws, shortening the course of treatment.

Example 2

In this embodiment, an invisible appliance according to the present invention is used to treat patients with skeletal facial type II malocclusion accompanied by vertical and/or sagittal overgrowth of the maxilla, as shown in Figure 4, Including maxillary braces 1, mandibular braces 2, connecting bite plate 3, outer tube 4, extra-oral traction arch 5, lingual guide wings 6, each part of the invisible appliance is made of transparent materials. The maxillary brace 1 covers the entire maxillary dentition, and the mandibular brace 2 covers the lingual side of the mandibular dentition and the labial side of the mandibular anterior region; the connecting bite plate 3 is located between the occlusal surfaces of the upper and lower braces after occlusal reconstruction. In between, the maxillary brace and the mandibular brace are connected into one, and the positions of the maxillary brace and the mandibular brace are fixed at the target position after occlusal reconstruction, so as to play the role of leading the mandible; the outer tube 4 is located on the buccal side connecting the occlusal plate 3, The extra-oral traction bow 5 is made of metal wire and has a "bow"-shaped bend, the inner end of which is inserted into the outer tube 4; the middle section spans the corner of the mouth area, and the outer end of the mouth is connected with the outer anchorage device; Bending section 51 , second bending section 52 , third bending section 53 , wherein the bending direction of the first bending section 51 is opposite to the bending direction of the second bending section 52 , and is opposite to the bending direction of the third bending section 53 The bending direction is the same. The lingual guide wing 6 is connected to the lingual gingival margin of the mandibular mouthpiece and covers the lingual gingival mucosa of the mandible; it plays a role of guiding the mandibular base bone forward.

In this embodiment, the invisible appliance of the present invention includes a tooth-inducing type and a tooth-stabilizing type. The maxillary brace 1 and the mandibular brace 2 of the tooth-stabilizing appliance correspond to the original position of the wearer's teeth and accommodate the teeth. The space is the same as the size of the teeth; the maxillary braces 1 and the mandibular braces 2 of the tooth-inducing appliance correspond to the original position of the wearer's teeth, and the space for the braces to accommodate the teeth is not completely erupted during the mixed dentition period. Including the space occupied by the teeth and the induced space, the teeth can be guided to erupt or move into the induced space.

The use method of the invisible appliance is as follows: the patient wears the appliance in the evening and at night, and at the same time wears the head cap of the extraoral anchorage device. The appliance fixes the positional relationship of the upper and lower jaws at the target position to guide the forward growth of the mandible; at the same time, the extra-oral traction arch of the appliance is connected to the head cap, and the extra-oral traction force is transmitted to the entire maxillary dentition and maxilla through the appliance. Effectively control the growth of the maxilla and/or maxillary dentition in the vertical and sagittal directions. While leading the mandible, the appliance can inhibit the overgrowth of the maxilla, which will help the mandibular growth to rotate forward and upward, thereby improving the occlusal relationship of the posterior teeth and the coverage of the anterior teeth, coordinating the positional relationship between the upper and lower jaws, and improving the occlusal function and facial aesthetics. It is especially beneficial for patients with Angle's class II high angle.

Example 3

In this embodiment, the invisible appliance of the present invention is used to treat patients with mild Class III malocclusion. As shown in FIG. 5 , it includes an upper jaw brace 1 , a lower jaw brace 2 , a connecting bite plate 3 , a lingual guide wing 6 , a palatal side plate 7 , a gingival bulge 8 and a force pad 9 . Each part of the invisible appliance is made of transparent material. The maxillary brace 1 covers the buccal-lingual side of the maxillary bilateral canines to the first molar, and the mandibular brace 2 covers the occlusal 1/2 of the crown lingual side and the labial side of the mandibular anterior teeth; the connecting occlusal plate 3. It is located between the occlusal surfaces of the upper and lower braces after occlusal reconstruction, connects the upper and lower braces into one, and fixes the positional relationship between the upper and lower braces at the target position after occlusal reconstruction, so as to play the role of retreating the lower jaw; The lingual guide wings 6 are connected to the lingual gingival margin of the mandibular brace, cover the gingival mucosa of the mandible, and play the role of strengthening the mucosal support of the mandibular brace; the palatal side plate 7 is connected to the palatal gingival margin of the maxillary brace, covering the upper jaw The palatal mucosa; the gingival margin bulge 8 is a vacuolar bulge structure at the junction of the front end of the palatal plate 7 and the palatal gingival margin of the maxillary anterior teeth; the gingival margin bulge can be divided into lip-inclined and depressed-type bulges according to function, The reinforced pad is an elastic pad, which is connected with the front end of the gingival margin. The force pad presses the tongue fossa on the palatal side of the maxillary anterior teeth from bottom to top;

In this embodiment, the invisible appliance of the present invention is a tooth-inducing type, and the maxillary braces 1 and the mandibular braces 2 correspond to the original positions of the wearer's teeth, and the teeth corresponding to the teeth are not fully erupted during the mixed tooth period. The space for the braces to accommodate the teeth includes the space occupied by the teeth and the induced space, which can guide the teeth to erupt into the induced space; the mandibular brace 2 forms an induced space on the lingual side of the corresponding mandibular anterior teeth, and guides the mandibular anterior teeth to incline to the lingual side.

In this embodiment, the urging pad 9 and the gingival margin bulge 8 are mechanically connected. The mechanically connected force pad 9 can be assembled and disassembled; the force pad 9 presses the tongue eminence on the palatal side of the maxillary anterior teeth from back to front. The width of the force pad is the distance from the connection between the force pad 9 and the gingival margin bulge 8 to the contact point between the force pad and the palatal surface of the anterior teeth. The appliance is divided into multiple steps to gradually tilt the upper incisors, and the width of the force pads used in each step is 2 mm, or 2.5 mm, or 3 mm, or 3.5 mm, or 4 mm. orthodontic force until the upper incisor lip is tilted to establish normal anterior coverage.

The use method of the invisible appliance is as follows: the connecting occlusal plate of the appliance fixes the positional relationship of the upper and lower jaws, so that the lower jaw is retreated. The appliance makes the force of the mandibular retraction transmitted to the entire mandible through the lower anterior teeth, and the thrust acting on the lower anterior teeth makes the lower anterior teeth lingually inclined, and the mandibular braces form an induction space on the lingual side of the corresponding mandibular anterior teeth, which is beneficial to the mandibular anterior teeth to the tongue. At the same time, the elastic thrust of the booster pad continues to tilt the upper front teeth, which can quickly correct the anterior crossbite in the early stage of treatment, relieve the occlusal interference, and provide a favorable environment for coordinating the growth of the upper and lower jaws. The appliance is small in size, and the mandibular braces only cover part of the crown of the front teeth, which has little impact on the functional movement of the oral cavity, so it can be worn at night and during the day, and patients can wear the appliance for more than 20 hours a day. The appliance has high wearing comfort, high aesthetics, good wearing compliance, and long wearing time every day, which ensures that the orthodontic efficacy is fully exerted and improves the orthodontic efficiency.

The above-mentioned embodiments merely illustrate the principles and effects of the present invention, but are not intended to limit the present invention. Anyone skilled in the art can make modifications or changes to the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or changes made by those with ordinary knowledge in the technical field without departing from the spirit and technical idea disclosed in the present invention should still be covered by the claims of the present invention.

Claims (9)

1. an invisible appliance is characterized in that: comprise single-jaw appliance and/or double-jaw appliance, single-jaw appliance includes maxillary brace, functional accessory, and double-jaw appliance includes double-jaw brace, functional accessory , the bimaxillary braces include maxillary braces, mandibular braces, and connecting occlusal plates, and the functional accessories are selected from at least one of palatal side plates, lingual guide wings, anterior occlusal opening components, and extra-oral traction components; The maxillary braces and the bimaxillary braces cover the entire dentition, or cover the dentition segment composed of single or multiple teeth in the dental arch, or cover part of the dental crown of a certain dentition segment; The connecting mouthpiece is located between the upper jaw and the lower jaw, and connects the upper jaw and the lower jaw into one body; The palatal side plate is connected to the palatal gingival margin of the maxillary brace and covers the maxillary palatal mucosa; The lingual guide wings are connected to the lingual gingival margin of the mandibular mouthpiece and cover the lingual gingival mucosa of the mandible; The anterior teeth occlusion opening assembly includes a gingival margin bulge and a force pad; the gingival margin bulge is a vacuolar bulge structure at the junction of the front end of the palatal side plate and the palatal gingival margin of the maxillary anterior teeth; the force pad is elastic a pad, which is connected with the front end of the gingival margin bulge; the front end of the forcing pad is pressed against the palatal surface of the maxillary anterior teeth; The extra-oral traction assembly includes an outer tube and an extra-oral traction arch, the outer tube is located on the buccal side connecting the occlusal plate, the extra-oral traction arch is made of metal wire, and its inner end is inserted into the outer tube; the middle section spans the corner of the mouth area, and the outer end of the mouth is connected with the extraoral anchorage device; The maxillary brace, the mandibular brace, the connecting bite plate, the palatal side plate, and the lingual guide wing of the invisible appliance are all made of transparent or translucent materials, so that the appliance is invisible. 2. The invisible appliance according to claim 1, characterized in that: the gingival margin bulge is divided into a lip-inclined type and a depression-type bulge by function; the force pad located at the front end of the lip-inclined bulge is pressed from the back to the front. The tongue eminence on the palatal side of the maxillary anterior teeth, the force pad located at the front of the depression-type bulge presses against the tongue fossa on the palatal side of the maxillary anterior teeth from bottom to top. 3 . The invisible appliance according to claim 1 , wherein the connection between the energizing pad and the gingival bulge is chemical bonding or detachable mechanical connection. 4 . 4. invisible appliance according to claim 1, is characterized in that: the width of the booster pad is the distance from the junction of the booster pad and the gingival margin bulge to the contact point of the booster pad and the palatal tooth surface of the anterior teeth, the booster pad The width is 2 mm, or 2.5 mm, or 3 mm, or 3.5 mm, or 4 mm. 5. The invisible appliance according to claim 1, wherein the connecting bite plate is located between the occlusal surfaces of the upper and lower jaws after occlusal reconstruction, and the positions of the upper and lower jaws are fixed on the occlusal reconstruction. Target position, so as to play the role of leading mandible or retracting mandible. 6 . The invisible appliance according to claim 1 , wherein the appliance includes a tooth-stabilizing type, a tooth-inducing type and a dental-orthodontic type, and the braces of the tooth-stabilizing appliance are aligned with the wearer's teeth. 7 . Corresponding positions, the space for accommodating the teeth is the same as the size of the teeth; the braces of the tooth-induction appliance correspond to the original position of the wearer's teeth, and the space for accommodating the teeth includes the space occupied by the teeth and the induction space, which can induce the teeth to move toward the teeth. Eruption or movement is induced in the space; the dental orthodontic appliance includes a set of multiple appliances in a continuous sequence, and the braces and the occlusal opening components of each appliance correspond to the tooth arrangement positions of each step obtained by the digital arrangement, respectively, Ability to move teeth in steps. 7. The invisible appliance according to claim 1, characterized in that: comprising a orthodontic system, the orthodontic system comprising multiple sets of appliances, each orthodontic step is obtained according to the digital arrangement of teeth, and each orthodontic step corresponds to a set of appliances, Each set of appliances includes two sets of single-jaw appliances and double-jaw appliances. 8 . The invisible appliance according to claim 1 , wherein: the upper jaw and/or the lower jaw has a vacuolar structure, the corresponding tooth surface is provided with an adhesive attachment, and the outer surface of the adhesive attachment is The shape and size of the inner surface of the cavity structure are consistent, and the adhesive attachment and the inner wall of the cavity are mechanically fitted to fix the dental brace on the teeth. 9 . The invisible appliance according to claim 1 , wherein the extra-oral traction arch is made of metal wire and has a bow-shaped bending, and the bow-shaped bending comprises a first bending section, a second bending section and a second bending section connected in sequence. 10 . The bending section and the third bending section, wherein the bending direction of the first bending section is opposite to the bending direction of the second bending section, and is the same as the bending direction of the third bending section.