WO2021052337A1

WO2021052337A1 - Dental instrument for treatment of malocclusion, dental instrument kit, and orthodontic system

Info

Publication number: WO2021052337A1
Application number: PCT/CN2020/115397
Authority: WO
Inventors: 沈刚; 姚峻峰; 王星星; 刘珊珊; 赵晓磊
Original assignee: 上海正雅齿科科技股份有限公司; 沈刚
Priority date: 2019-09-20
Filing date: 2020-09-15
Publication date: 2021-03-25
Also published as: TWM608387U

Abstract

A dental instrument for treatment of malocclusion, comprising a shell-like body (105). The shell-like body (105) is provided, at a position corresponding to a posterior teeth region, with a protruding portion (102) that protrudes toward an opposite jaw to align mandibular incisors and maxillary incisors. A part of an occlusal surface of the protruding portion (102) is provided with a friction portion (103) that increases the stability of contact between the upper and lower jaws during occlusal reconstruction. The corresponding posterior teeth region of the shell-like body (105) is further provided with at least one retention portion (2) that fastens to a retention accessory arranged on a tooth corresponding to the posterior teeth region. An anterior teeth region of the shell-like body (105) corresponding to a labial side having an outer surface in contact with teeth is further provided with at least one traction portion (3) for jawbone orthopedic reshaping.

Description

Dental instruments, dental instrument kits and dental orthodontic systems for the treatment of malocclusion

Cross-references to related applications

This application is required to enjoy Chinese patent applications filed on September 20, 2019, with application numbers 2019215722206, 2019215722117, 2019108936559 and 2019108978782. Their entire contents are hereby incorporated into this article by reference.

Technical field

The application belongs to the field of medical devices, and relates to a dental device, a dental device kit and a dental treatment system for malocclusion treatment.

Background technique

Malocclusion is caused by congenital genetic factors or acquired environmental factors, such as diseases, bad oral habits, dental replacement disorders, etc., during the growth and development of children, and can also be caused by trauma, periodontal disease and other reasons after growth and development. For example, the teeth are not aligned, the relationship between the upper and lower arches and the jaws are abnormal, the size and position of the jaws are abnormal, and the facial deformities. The formation factors and mechanisms of malocclusion are intricate, and its occurrence may be caused by a single factor and a single mechanism, or it may be the result of a combination of multiple factors or multiple mechanisms. Divided from the time when the malocclusion is formed, the causes of malocclusion can be divided into two categories: congenital and acquired. However, from the perspective of the mechanism of individual malocclusion, the causes of malocclusion can be divided into Internal genetic factors and external environmental factors.

Jaw pads are commonly used in the treatment of inverted jaws. The main function is to eliminate jaw obstacles in occlusal adjustment and facilitate occlusal adjustment. For malocclusion, hyperbolic tongue jaw pad appliances and labial arch appliances are widely used . This type of appliance is basically composed of three parts: retention, force application and connection. However, the above method is applied to non-invisible orthodontic treatment. During the invisible orthodontic treatment, the application of the jaw pad is to stick the jaw pad on the invisible appliance or to set the cavitation bulge on the invisible appliance, but this way The invisible aligner has a low ability to wrap the teeth and is easy to fall off the teeth during the wearing process, which affects the treatment effect of the patient.

Extramaxillary traction is also one of the commonly used correction techniques for malocclusion. The anterior maxillary traction appliance is an appliance that uses an extraoral device to apply corrective force to the maxilla, traction the maxilla forward and promote the development of the mandible. In recent years, many Scholars have modified and mutated the front retractor so that the front retractor is no longer a single appliance. At present, the front traction device is often used in conjunction with fixed orthodontics, that is, the anterior maxillary traction appliance and the fixed bracket expansion joint traction appliance are used for correction. When the jaw is opened, the jaw pad is generally pasted or directly set on the top of the shell to connect It is complicated and has the problem of unstable connection with the teeth. It is easy to fall off and affect the correction effect. During traction, the traction direction is difficult to control because the jaw pad is not tightly connected to the teeth. In addition, because the invisible appliance is made of elastic polymer material, if the existing traction method is directly used for traction, the invisible appliance is prone to deformation, causing the invisible appliance to not fit the teeth, and the treatment effect is reduced.

Therefore, it is of great significance to study a dental instrument that can open the occlusion and prevent dislocation.

Summary of the invention

In the first aspect, some embodiments of the present application provide a dental instrument for malocclusion treatment, so that when the occlusion is reconstructed, the dental instrument does not dislocate from the teeth.

In the second aspect, some embodiments of the present application also provide a dental instrument set for malocclusion treatment, so that when the upper and lower jaw is reconstructed by occlusion, the dental instrument does not dislocate from the teeth.

In the third aspect, some of the embodiments of the present application also provide a shell-shaped dental orthodontic system for malocclusion treatment, so as to perform dental orthodontics while reconstructing the mandibular occlusion.

In an embodiment of the present application, there is provided a dental instrument for malocclusion treatment, including a shell-shaped body provided with a plurality of cavities for accommodating teeth, and the plurality of cavities are in communication. The shell-shaped body is provided with at least one protruding part protruding toward the opposite jaw at a position corresponding to the posterior tooth area so that the mandibular incisor and the maxillary incisor tend to align, and the convex part faces the opposite dentition The part of the occlusal surface is provided with friction parts that increase the stable contact between the upper and lower jaws during occlusal reconstruction. The posterior tooth region corresponding to the shell-shaped body is also provided with at least one retaining part which is buckled with the retaining attachment provided on the corresponding tooth of the posterior tooth region and prevents the shell-like body from dislocating from the tooth. In addition, the anterior tooth area corresponding to the labial side surface of the shell-shaped body in contact with the teeth is also provided with at least one traction part for jaw orthopedic reshaping, and the traction part is located between the protrusion and the posterior mandibular teeth. Zone coordination for occlusal reconstruction with maxillary extra-maxillary reverse traction to reshape the jaw bone.

In an embodiment of the present application, the retaining portion includes a first curved surface and a second curved surface, the first curved surface and the second curved surface are enclosed to form a retention accessory accommodating space with one end open and the other closed end, so The first curved surface and the second curved surface have the same bending direction, and the first curved surface and the second curved surface have different curvatures. The structure of the retention part is configured in this way, and the contact area of the retention part and the retention accessory is larger when the matching retention accessory has the same contact area with the tooth surface, so that it can provide dental instruments Greater retention.

In an embodiment of the present application, the shell-shaped body includes two retention parts, which are arranged at the mesial position of the posterior region corresponding to the protrusion; and/or, the shell-shaped body includes two traction parts , Symmetrically arranged on the anterior teeth area of the lip side of the shell body.

In an embodiment of the present application, the retaining portion and the traction portion are configured such that the direction of the combined retention force generated by the retaining portion and the retaining accessory acting on the retaining portion during the extra-mandibular traction It forms a certain angle with the direction of the traction force received by the traction part. The included angle is greater than or equal to 70° but less than or equal to 100°; or the included angle is greater than or equal to 70° but less than or equal to 90°, or greater than or equal to 90° but less than or equal to 100°; or, the included angle is 90°. In an embodiment of the present application, the force direction generated by the action of the retention part and the retention attachment is perpendicular to the force application direction generated by the traction part.

In an embodiment of the present application, the retaining portion is a cavity for accommodating a polygonal attachment, a multi-curved attachment, a T-shaped attachment, or a "cross"-shaped attachment. Provide a variety of retention parts to meet different retention requirements.

In an embodiment of the present application, the traction part and the shell-shaped body are provided separately or integrally formed. When the traction part and the shell-shaped body are arranged separately, the shell-shaped body is also provided with a hole that cooperates with the traction part, and the traction part passes through the hole and is connected and fixed to the shell-shaped body; The traction part is protrudingly arranged in the anterior tooth area corresponding to the labial side surface of the outer surface of the shell body in contact with the teeth.

In an embodiment of the present application, the traction part itself is a split structure, and the split structure is respectively connected to the shell body on the inner surface and the outer surface of the shell body through a snap fit. In an embodiment of the present application, the traction part includes a bottom, a connecting rod, and a top. The bottom is provided on the inner surface of the shell-shaped body and is connected to the top through the shell-shaped body through the connecting rod. , The top part is arranged on the outer surface of the shell body.

In an embodiment of the present application, the traction part and the shell-shaped body are arranged separately and fixed by bonding.

In an embodiment of the present application, there is also provided a dental instrument kit for malocclusion treatment, which includes two of the above-mentioned dental instruments. Two dental instruments are respectively worn on the upper and lower teeth, and the patient's upper and lower dentition are corrected at the same time, which can obtain a better correction effect.

In an embodiment of the present application, there is also provided a shell-shaped dental orthodontic system for malocclusion treatment, including a plurality of dental instrument sets, wherein at least one dental instrument set is the aforementioned malocclusion treatment system Set of dental instruments. In the process of orthodontic treatment, the malocclusion deformity of the patient can be corrected due to the set of dental instruments worn by the patient. Setting up multiple dental instrument sets for treatment can obtain a better treatment effect and treatment experience.

In an embodiment of the present application, there is also provided a dental instrument kit for malocclusion treatment, which includes a first shell-shaped dental instrument and a second shell-shaped dental instrument. The first shell-shaped dental instrument is the above-mentioned dental instrument; the second shell-shaped dental instrument includes a second shell-shaped body, and the second shell-shaped body is provided with a plurality of second cavities for accommodating the second dentition, so The second shell-shaped body is provided at a position corresponding to the convex portion of the first shell-shaped body with at least one limiting portion that cooperates with the convex portion of the first shell-shaped body and promotes occlusion induction; the first shell The shaped dental instrument cooperates with the second shell-shaped dental instrument to complete the purpose of occlusal reconstruction.

In an embodiment of the present application, the limiting portion is a structure that matches the concave and convex of the occlusal surface of the corresponding posterior region of the first shell-shaped dental instrument, is a structure that matches the occlusal surface of the first shell-shaped dental instrument, and has a frosted surface. The surface structure is one, two or more of a structure with a hollow surface, a structure with openings on the occlusal surface of the posterior region corresponding to the opposite jaw teeth, or a structure that the posterior region does not cover the second shell-like body structure The combination.

In an embodiment of the present application, the labial side surface of the second shell-shaped body of the second shell-shaped dental instrument in contact with the teeth is also provided with a traction part for jaw orthopedic reshaping.

In an embodiment of the present application, there is also provided a shell-shaped dental orthodontic system for malocclusion treatment, including a plurality of dental instrument sets, wherein at least one dental instrument set is the aforementioned malocclusion treatment system Set of dental instruments.

In an embodiment of the present application, the protrusion heights of the protrusions on the shell-shaped dental instruments in the different dental instrument sets of the dental instrument set gradually decrease with the correction process.

Compared with the prior art, the beneficial effects of the present application are as follows.

First, this application provides a dental instrument for malocclusion treatment. The posterior tooth area of the shell-shaped body is provided with a protrusion protruding toward the opposite jaw, which can open the occlusion of the teeth and induce the mandibular incisor and the upper jaw. The incisor tends to be aligned; the structure of the friction part that increases the friction is set on the protrusion, so that the upper and lower jaws are in stable contact while opening the occlusion; the solid is set on the contact surface between the posterior teeth of the dental instrument and the teeth. The position part can increase the retention force between the dental instrument and the teeth, and prevent the dental instrument from falling off during the wearing process; in addition, the outer surface of the shell-shaped body is also provided with a traction part, when the protrusion part and the posterior mandibular teeth When performing occlusal reconstruction with zone coordination, it is used to coordinate the maxillary extra-maxillary reverse traction to reshape the jaw bone; at the same time, the dental instrument of the present application adopts an integrated convex structure, which does not require the jaw pad to be fixed on the tooth, nor does it require The jaw pad is fixed in the dental instrument, which is convenient and comfortable to wear, easy to remove and wear, and will not cause major trauma to the teeth.

Second, the dental instrument for malocclusion treatment of the present application is provided with a retention part in the posterior tooth area, which has two curved surfaces with the same bending direction, and a matching retention accessory is provided on the corresponding tooth. In the case of the same contact area with the tooth surface, such a retaining accessory can provide a larger contact area when matched with the retaining portion, and therefore can provide a greater retention force for the dental instrument; between the two curved surfaces of the retaining portion The included angle is an acute-angle structure design, so that when the contact area between the retention part and the retention accessory is the same, the contact area between the retention accessory and the tooth surface is smaller, thereby reducing the damage to the tooth surface.

Description of the drawings

Fig. 1 is a schematic diagram of a dental appliance according to Example 1 of the present application.

Fig. 2 is a schematic diagram of the retaining portion of Example 1 of the present application.

Fig. 3 is a schematic diagram of a dental appliance according to Example 2 of the present application.

Fig. 4 is another schematic diagram of the dental appliance of Example 2 of the present application.

FIG. 5 is a schematic diagram of the structure of the traction part of Embodiment 2 of the present application.

Fig. 6 is a schematic diagram of a dental appliance according to Example 3 of the present application.

Fig. 7 is another schematic diagram of the dental appliance of Example 3 of the present application.

Fig. 8 is another schematic diagram of the dental appliance of Example 3 of the present application.

Fig. 9 is another schematic diagram of the dental appliance of Example 3 of the present application.

Fig. 10 is another schematic diagram of the dental appliance of Example 3 of the present application.

Fig. 11 is a schematic diagram of a dental instrument kit according to Example 4 of the present application.

Fig. 12 is a schematic diagram of a dental instrument kit according to Example 5 of the present application.

Fig. 13 is a schematic diagram of a dental instrument kit according to Example 6 of the present application.

FIG. 14 is another schematic diagram of the dental instrument kit of Example 6 of the present application.

FIG. 15 is another schematic diagram of the dental instrument kit of Example 6 of the present application.

Fig. 16 is a schematic diagram of a dental treatment kit according to Example 7 of the present application.

Fig. 17 is a schematic diagram of a dental treatment kit according to Example 8 of the present application.

Fig. 18 is a schematic diagram of a dental treatment kit according to Example 9 of the present application.

Reference signs: maxillary braces 100; maxillary pad 101; shell-shaped body 105; protrusion 102; friction part 103; retention part 2, first outer surface 303, second outer surface 302; traction part 3, bottom 31 , Connecting rod 32, top 33; mandibular braces 200; mandibular pad 201; opening structure 210; first shell-shaped dental instrument T1a, T1b, T1c; second shell-shaped dental instrument T2; second shell-shaped body 205; limit部203.

detailed description

The application will be further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present application, and are not used to limit the protection scope of the present application. In practical applications, improvements and adjustments made by those skilled in the art based on this application still fall within the protection scope of this application.

In this application, unless otherwise specified, the "posterior tooth area" is defined according to the classification of teeth in pages 36-38 of the "Introduction to Stomatology" 2nd edition published by Peking University Medical Press, including premolars and molars. The "anterior teeth area" includes incisors, lateral incisors, and canines.

Example 1

This embodiment provides a dental instrument for malocclusion treatment, including maxillary braces 100. The maxillary braces 100 includes a shell-shaped body 105 that conforms to the shape of the human dentition (not shown in the figure). ), the shell-shaped body 105 is provided with cavities for accommodating the upper anterior teeth, premolars and molars of the human body, and the cavities are communicated with each other. As shown in FIG. 1, the posterior tooth regions on both sides of the shell-shaped body 105 are provided with protrusions 102 (not shown in the figure) protruding in the mandibular direction, and the protrusions 102 form the upper jaw brace 100 The upper jaw pad 101. When worn, the upper jaw pad 101 in the posterior area of the upper jaw brace 100 occludes with the corresponding posterior teeth of the mandibular human dentition. Due to the function of the upper jaw pad 101, the upper jaw brace 100 can open the teeth and cut the mandible. The role of teeth and maxillary incisors tending to align.

The maxillary braces of this embodiment are made of polymer materials, which will slide relative to each other when occluding the teeth. In order to increase the friction between the maxillary pad 101 and the teeth in the posterior area of the mandible, the occlusal surface of the maxillary pad 101 is provided with The friction part 103 that matches with the occlusal surface of the posterior teeth of the mandibular dentition. In other words, the portion of the protrusion 102 facing the occlusal surface of the opposite jaw is provided with a friction portion 103 that increases the stable contact between the upper and lower jaws during occlusal reconstruction. The friction part is arranged as a protruding structure that matches the pits and fissures of the posterior teeth of the mandibular dentition, and the friction part can increase the stable contact of the upper and lower jaws during occlusion reconstruction.

The upper jaw brace 100 of this embodiment can also cooperate with the front retractor to perform traction treatment on the patient’s maxillary dentition. Because the upper jaw brace is traction by the front retractor, the upper jaw brace receives an outward traction force perpendicular to the front teeth. Due to the traction force, the maxillary braces 100 translocates from the maxillary dentition, or even falls off. Therefore, in order to prevent the maxillary braces 100 from dislocating from the maxillary dentition, retention attachments (not shown in the figure) are provided on the buccal side of the posterior regions on both sides of the upper dentition of the human body. The corresponding positions of the maxillary braces 100 A retaining portion 2 that is matched with the retaining accessory is provided. The retaining portion 2 of the upper jaw brace 100 is a cavity protruding to the buccal side, and the retaining portion 2 is symmetrically arranged in the posterior region on both sides of the maxillary brace 100. The retaining portion is arranged in the posterior area of the upper jaw brace, and can provide a more stable retention force for the upper jaw brace.

As shown in FIG. 2, the retaining portion 2 includes a first outer surface 303 and a second outer surface 302. The second outer surface 302 is a curved surface that is concave toward the center of the retention accessory. The first outer surface 303 is a curved surface, the first outer surface 303 and the second outer surface 302 have the same bending direction, and the first outer surface 303 and the second outer surface 302 are enclosed to form the cavity, which is The retention part 2. When this kind of retaining part 2 is used in conjunction with a retaining accessory, under the condition that the contact area with the human teeth is the same, the retaining accessory and the retaining part can provide a larger contact area, and therefore can provide a larger fixed area. Position power.

The outer surface of the retaining portion 2 of the present embodiment is set at a certain angle with the lip side surface of the shell-shaped body, so that the force distribution of the first outer surface 303 or the second outer surface 302 of the retaining portion The direction of face and extramaxillary traction is perpendicular. During traction treatment, the retention part is buckled with the retention attachments set on the teeth to drive the teeth to move. Multiple teeth can be set to form a whole. For other functional corrections, such as traction , Not only can prevent dislocation of dental instruments and teeth, but also increase the retention of traction during traction.

In this embodiment, the retaining portion 2 is symmetrically arranged on the buccal side of the posterior region of the maxillary braces 100. In other alternative embodiments, the retaining portion 2 may be symmetrically arranged on the tongue of the posterior region of the maxillary braces 100. On the side, or on the buccal and lingual sides at the same time, or on the buccal and/or labial sides of the left and right sides of the upper jaw.

In this embodiment, the thickness of the maxillary cushion 101 is thicker than that of other regions, or the hardness is higher than that of other regions, so that the maxillary cushion 101 is stronger and more durable. The upper jaw brace 100 has a relatively thick thickness at the position to be corrected, the position of the upper jaw pad 101 and the position of the occlusal surface of the upper jaw pad 101, and the thickness can be set to 2mm, 1.5mm, 1mm, 0.75mm, 0.5mm; The thickness at other positions is smaller than the thickness of these parts, and the partial position of the maxillary braces can also be set to 0.1mm, so as to obtain a better correction effect and a comfortable and beautiful patient experience. In other embodiments, the upper jaw brace can also be set as a shell with a uniform thickness, which is not limited here.

In this embodiment, in order to increase the occlusal strength of the maxillary cushion 101, a filler is provided in the space between the maxillary cushion 101 and the maxillary molars, and the filler is a polymer resin to increase the maxillary cushion The support strength of 101 prevents deformation during occlusion.

Example 2

3 and 4, this embodiment provides a shell-shaped dental instrument for malocclusion treatment, including a shell-shaped body 105, the shell-shaped body 105 is provided with a plurality of cavities for accommodating teeth, the plurality of cavities directly Unicom. The shell-shaped body 105 protrudes toward the opposite jaw at a position corresponding to the posterior region, and is provided with a protrusion 102 that makes the mandibular incisor tend to align with the upper incisor, and the protrusion 102 faces the opposing dentition. The part of the occlusal surface is provided with a friction part 103 that increases the stable contact between the upper and lower jaws during occlusal reconstruction. The posterior tooth region corresponding to the shell-shaped body 105 is also provided with at least one retaining part 2 that is buckled with the retention attachment provided on the corresponding tooth of the posterior tooth region and prevents the shell-shaped body from dislocating from the tooth; and the shell-shaped body 105 The anterior tooth area corresponding to the labial side surface of the outer surface contacting the teeth is also provided with at least one traction part 3 for jaw orthopedic reshaping, and the traction part 3 is performed in cooperation with the convex part 2 and the mandibular posterior tooth area. The occlusal reconstruction is combined with the maxillary extra-maxillary reverse traction to reshape the jaw bone.

The retention part 2 and the traction part 3 are configured such that when the retention part 2 and the retention accessory act on the retention part when the retention part 2 and the retention attachment act on the retention part, the direction of the resultant retention force generated at the retention part is the same as the traction part. 3 The direction of the traction force is at a certain angle. The included angle is greater than or equal to 70° but less than or equal to 100°; or, the included angle is greater than or equal to 70° but less than or equal to 90°, or greater than or equal to 90° but less than or equal to 100°; or, the included angle is 90° . Specifically, during extra-mandibular traction, the force direction generated by the action of the retention part 2 and the retention attachment is perpendicular to the force application direction generated by the traction part 3.

The shell-shaped body 105 is provided with a raised portion 102 for opening the occlusion and reconstructing the occlusion, so that the mandibular incisor and the upper incisor tend to be aligned; and the fastening of the retaining portion 2 and the retaining accessory makes the shell-shaped body 105 and The teeth are more fit and stable. The force direction generated by the action of the retention part 2 and the retention attachment is perpendicular to the force application direction generated by the traction part 3. Specifically, when the traction part 3 is traction outside the jaw, the traction part 3 is traction connection with the front traction device, and the traction part 3 Traction the shell-shaped body 105 to drive the teeth to move. At this time, the traction part 3 acts as the force applying side. The retaining part 2 interacts with the retention attachment as the force receiving side of the traction part 3, so that the force direction and the traction part 3 are generated. The direction of force application is vertical, which prevents the shell-shaped body 105 from deforming or dislocating from the teeth during the traction process.

Further, the portion of the protrusion 102 facing the occlusal surface of the opposite jaw is provided with a friction portion 103 that increases the stable contact between the upper and lower jaws during occlusal reconstruction; because the shell-shaped dental instrument is made of polymer materials, the upper and lower jaws are prone to opposing contact. The sliding phenomenon makes the occlusal relationship between the upper and lower jaws unstable, so the friction part 103 is added on the upper and lower jaw contact surface to increase the friction of the contact surface and avoid the relative sliding of the upper and lower jaws, so that the upper and lower jaws are in stable contact during the occlusal reconstruction to achieve occlusion. Inducing effect. The friction portion 103 is one of a structure with the same texture as the occlusal surface of the tooth, a structure with a frosted surface on the surface, a structure with a convex surface on the surface, a structure with a hollow surface, or a structure with a hole surface, A combination of two or more. After the upper and lower jaws are fitted with shell-shaped dental instruments, the relative sliding of the upper and lower jaws will be prevented during contact, and friction parts will be added on the contact surfaces of the upper and lower jaws to increase the stability of the upper and lower jaws during occlusal reconstruction.

The traction part 3 is a structure capable of generating a hooking force during traction. A hooking part is provided on the traction part near the lip side to generate a hooking force, and there is no restriction on the structure that generates the hooking force.

Further, the traction part 3 and the shell-shaped body 105 are provided separately or integrally formed. When the traction part 3 and the shell-shaped body 105 are integrally formed, it can be an integrally formed structure by pressing a film, or it can be directly cut into a hook-shaped structure on the shell-shaped body 105. The traction part 3 and the shell-shaped body 105 It is made of the same material continuously, and during traction, the traction part and the shell-shaped body 105 will not be separated, and the structure is more stable.

When the traction part 3 and the shell body 105 are arranged separately, the shell body 105 is also provided with a hole (not shown in the figure) that cooperates with the traction part 3, and the traction part 3 through the hole to protrude on the anterior tooth area corresponding to the labial side of the outer surface of the shell-shaped body 105 in contact with the teeth. The separate bodies are respectively arranged on the inner surface and outer surface of the shell-shaped body 105 to be connected to the shell-shaped body 105 by snap fit, that is, the traction part 3 is assembled to the shell-shaped body 105 This arrangement method reduces the processing difficulty of the shell-shaped body 105, and can use different specifications of traction parts for traction treatment according to actual medical record requirements.

Specifically, referring to FIG. 5, the traction part 3 includes a bottom 31, a connecting rod 32 and a top 33. In actual use, the bottom 31 is provided on the inner surface of the shell body 105 where the inner surface of the shell-shaped body 105 matches the hole of the traction part 3, and the connecting rod 32 is passed through the The shell-shaped body 105 is connected to the top 33, and the connection method is a snap connection, a screw connection, and the like. The top 33 is located on the outer surface of the shell-shaped body 105. Specifically, the top portion 33 is a protruding structure or a hook-like structure, which generates a hooking force during traction. The inner surface is the side where the shell-shaped body 105 is in contact with the teeth, and the outer surface is the side in contact with the lips.

In other embodiments, when the traction part 3 and the shell-shaped body 105 are arranged separately, the traction part 3 and the shell-shaped body 105 are fixed by bonding. At this time, the shell-shaped body 105 The upper part may be provided with a hole that cooperates with the traction part 3, and may also be provided with a boss (not shown in the figure) that cooperates with the traction part.

Further, there are two traction parts 3, which are symmetrically arranged on the anterior tooth area corresponding to the labial side of the shell-shaped body 105, so as to facilitate hooking with the front retractor and generate traction, and the symmetrical arrangement on both sides can produce symmetry The traction force is used to pull the teeth on the left and right sides of the teeth at the same time to avoid the deviation of the traction direction caused by uneven traction.

The protrusion 102 provided on the shell-shaped dental instrument extends along the buccal and lingual surfaces of the posterior tooth region of the shell-shaped body, and the protrusion direction is the same as the opening and closing direction of the teeth. The occlusal surface formed has the same size as the occlusal surface of the teeth, which can simulate the occlusion of the teeth after the occlusal reconstruction.

In other alternative embodiments, the area of the surface of the protrusion 102 facing the opposite jaw is different from the area of the occlusal surface of the posterior dentition where the protrusion is located. When the surface of the protruding portion 102 facing the opposite jaw is larger than the area of the occlusal surface of the posterior dentition where the protruding portion is located, the protruding portion 102 provides a larger contact area with the opposite jaw and provides greater occlusion reconstruction. The contact surface makes the reconstructed occlusal relationship more stable, and friction parts can also be provided on the surface to further increase the stability of the upper and lower jaw contact. When the surface of the protruding portion 102 facing the opposite jaw is smaller than the area of the occlusal surface of the posterior dentition in the protruding portion, that is, the area of the protruding portion 102 near the teeth is larger than the occlusal surface of the protruding portion. The area of the side, during the occlusal process, the teeth are limited by the side wall of the protruding part to limit the position, which can also assist the posterior teeth to be depressed.

The inner surface of the raised portion 102 close to the occlusal surface of the dentition is also provided with a filler to strengthen the occlusal strength. The filler is filled inside the raised portion to provide support for the raised portion to prevent the upper and lower jaws from being occluded. 102 deformed.

The traction part 3 cooperates with the front retractor to complete the traction guidance of the upper jaw, and the traction part is used for 0-6 months. As the treatment time goes by, the height of the protrusion 102 gradually decreases.

Since the protruding part 102 is provided in the posterior tooth area of the dental instrument body, the wrapping force for the posterior tooth area is insufficient, and the phenomenon that the dental instrument body is likely to fall off the teeth during the wearing process is likely to occur. Therefore, in order to solve the above technical problems, the shell A retaining portion 2 is also provided on the shaped dental instrument for accommodating retaining accessories. When the shell-shaped dental instrument is worn on the tooth, the retaining part interacts with the retaining attachment, which can effectively prevent the shell-shaped body from dislocating from the tooth. At least one retaining portion 2 is provided in the posterior region of the shell-shaped body 105. The retaining portion 2 can be arranged on the buccal and/or lingual sides of the teeth on one side, or on the teeth on both sides, and can also be arranged symmetrically or as required according to medical records. The arrangement of multiple retention parts can increase the stability of the contact between the shell-shaped body and the teeth, and at the same time provide the stability of the contact between the entire shell-shaped body and the teeth during traction.

The retaining portion 2 can also be set in the posterior tooth area (symmetrical or asymmetrical) at the same time. During intermaxillary traction, the retaining portion 2 uses the entire jaw as a traction unit for upper jaw traction to avoid pulling a single tooth. Deviation in the treatment effect. The retaining portion 2 has at least two forming surfaces (not shown in the figure). When the shell-like body cooperates with other additional structures (such as retaining accessories) for simultaneous tooth correction, one of the surfaces can be enlarged when it comes into contact with the retaining accessories The retention force between the shell-shaped body and the tooth. When combined with traction, the retention force is reflected in that the force-bearing surface of the retention part is perpendicular to the traction direction, preventing the shell-shaped dental instrument from deforming during the traction process, which may lead to correction. The effect is reduced.

The shell-shaped body can make the teeth covered by it go from the first arrangement state to the second arrangement state, that is, when the occlusion is reconstructed, the teeth can be corrected at the same time.

Example 3

This embodiment provides a dental instrument for the treatment of malocclusion, including maxillary braces 100. In the posterior regions on both sides of the maxillary braces 100, one of the posterior regions protrudes toward the opposite jaw to form a maxillary pad 101 , As shown in Figure 6, the other posterior area matches the posterior area of the human maxillary dentition. The upper jaw brace 100 includes the shell-shaped body as described in the previous embodiment, which will not be repeated here. The upper jaw brace 100 is provided with a maxillary pad 101 on the buccal side of the posterior tooth area is provided with a "T"-shaped retention part 2, the upper jaw brace 100 is not provided with a jaw pad on the side of the posterior tooth area may not be provided The retaining portion can also be provided with a corresponding retaining portion. This structure is suitable for partial jaw cases, but the thickness of the maxillary pad 101 for this application is smaller than that of the jaw pad described in Example 1. According to actual cases Needs to be adjusted. Of course, the upper jaw pad 101 can also be provided on the left and right sides of the upper jaw brace at the same time, and the "T"-shaped retaining portion can be provided on the corresponding posterior tooth area at the same time.

In another optional embodiment, the posterior area of the upper jaw brace is provided with a jaw pad protruding to the lower jaw, and the buccal side of the posterior area on the side where the upper jaw brace is provided with the jaw pad is provided with a retaining portion. The part is rectangular, as shown in Figure 7. In other optional embodiments, the retaining portion and the jaw pad are arranged in cooperation, and the retaining portion can be configured in a window shape, a "cross" shape, an iris shape, etc., as shown in FIGS. 8-10.

Example 4

This embodiment provides a dental instrument kit for malocclusion treatment, which includes a first shell-shaped dental instrument and a second shell-shaped dental instrument. The first shell-shaped dental appliance and the second shell-shaped dental appliance include an upper jaw brace 100 and a lower jaw brace 200, respectively. The upper jaw braces 100 and the lower jaw braces 200 respectively include the shell-shaped body as described in the foregoing embodiment, and the first shell-shaped dental appliance is the dental appliance as described in the foregoing embodiment, and will not be repeated here. Referring to FIG. 11, the posterior regions on both sides of the upper jaw brace 100 protrude to the lower jaw to form a maxillary jaw pad 101, and the posterior regions on both sides of the mandibular brace 200 protrude to the upper jaw to form a mandibular pad 201. The occlusal surface of the upper jaw pad 101 of the upper jaw brace 100, that is, the part of the protrusion 102 facing the occlusal surface of the opposing dentition, is provided with a friction portion 103 that increases the stable contact between the upper and lower jaw during occlusal reconstruction. The friction portion 103 is A structure with the same texture as the maxillary dentition. Correspondingly, the occlusal surface of the mandibular pad 201 of the mandibular braces 200 is provided with a friction portion 103 (that is, the convex portion of the shell-shaped body included in the mandibular braces is provided with an occlusal surface facing the occlusal surface of the opposing dentition. During reconstruction, the friction part 103) which is in stable contact between the upper and lower jaws is added, and the friction part is a structure with the same texture as the mandibular dentition. The upper jaw pad 101 of the upper jaw brace 100 and the mandibular pad 201 of the mandibular brace 200 are occlusally matched to perform occlusal reconstruction.

Further, the buccal sides at the posterior regions on both sides of the maxillary brace 100 protrude to the buccal side to form a retaining portion 2. Correspondingly, the buccal sides at the posterior regions on both sides of the mandibular brace 200 protrude to the buccal side to form a retaining portion 2. The retaining portion can adopt various combinations of different shapes as described above according to actual needs.

When worn, the upper jaw brace 100 and the mandibular brace 200 are matched to the upper and lower dentitions of the human body. The upper jaw pad 101 of the upper jaw brace 100 and the mandibular pad 201 of the mandibular brace 200 occlude each other. The friction part of 101 matches the occlusion of the friction part of the mandibular pad 201, which plays the role of stably opening the occlusion. At the same time, the upper jaw braces 100 and the lower jaw braces 200 are used in conjunction, so that the jaw can be opened and the mandibular dentition can be corrected at the same time.

Example 5

This embodiment provides a dental instrument kit for malocclusion treatment, which includes a first shell-shaped dental instrument and a second shell-shaped dental instrument. The first shell-shaped dental instrument and the second shell-shaped dental instrument respectively include an upper jaw brace 100 and a lower jaw brace 200. The upper jaw brace 100 and the lower jaw brace 200 respectively include the shell-shaped body as described in the previous embodiment, and The first shell-shaped dental appliance is the dental appliance described in the foregoing embodiment, and will not be repeated here. 12, the posterior regions on both sides of the upper jaw brace 100 protrude to the lower jaw to form the maxillary jaw pad 101, the posterior regions on both sides of the mandibular brace 200 are matched with the mandibular dentition of the human body, and the mandibular braces 200 The posterior tooth regions on both sides are provided with opening structures 210, which serve as limit parts to limit the occlusion of the maxillary pad 101 and promote the occlusal reconstruction of the maxillary teeth and the mandibular teeth. The occlusal surface of the upper jaw pad 101 of the upper jaw brace is provided with a friction portion 103, the structure of the friction portion 103 is an occlusal surface that matches the posterior region of the upper dentition of the human body, and the upper jaw pad 101 and the mandibular teeth The occlusal matching of the posterior teeth of the column can achieve occlusal reconstruction.

In another optional embodiment, the mandibular brace 200 is provided with a housing body for accommodating the mandibular dentition, the mandibular brace 200 is provided with a limiting portion at a corresponding position of the upper jaw pad 101, and the limiting portion is provided It is a structure with the same texture as that of the mandibular dentition, and the limiting part is occlusally matched with the maxillary pad 101. In other embodiments, the limiting portion of the mandibular brace 200 can also be configured as a structure with a frosted surface, a structure with a convex point, and a structure with a hollowed out one, a combination of two or more. In other embodiments, the limiting portion may also be configured as a structure that exposes the posterior teeth area, and the maxillary pad is occlusally matched with the mandibular dentition.

The buccal side of the posterior area on both sides of the upper jaw brace 100 is provided with retaining parts 2, and the mandibular brace 200 is worn on the mandibular dentition, with or without retaining parts. The upper jaw braces 100 and the mandibular braces 200 can also be provided with retaining parts that serve as accessories for different corrective effects during the buckling treatment, which is not limited here.

Example 6

This embodiment provides a dental instrument kit for malocclusion treatment, which includes a first shell-shaped dental instrument and a second shell-shaped dental instrument. The first shell-shaped dental instrument and the second shell-shaped dental instrument respectively include an upper jaw brace 100 and a lower jaw brace 200. The upper jaw brace 100 and the lower jaw brace 200 respectively include the shell-shaped body as described in the previous embodiment, and The first shell-shaped dental appliance is the dental appliance described in the foregoing embodiment, and will not be repeated here. Referring to FIG. 13, the posterior regions on both sides of the upper jaw brace 100 protrude to the lower jaw to form a maxillary jaw pad 101, and the posterior regions on both sides of the mandibular brace 200 protrude to the upper jaw to form a mandibular pad 201. The upper jaw brace Retaining parts 2 are provided on the buccal side of the posterior region on both sides of the mandibular brace 200, and retention parts 2 are provided on the buccal side of the posterior region on both sides of the mandibular brace 200. The occlusal surface of the upper jaw pad 101 is provided with a friction portion 103, the friction portion 103 of the upper jaw pad 101 is a hollow structure, the occlusal surface of the lower jaw pad 201 is also provided with a friction portion 103, and the friction portion of the lower jaw pad 201 103 is configured as a hollow structure. When the upper jaw brace 100 is engaged with the lower jaw 200, the hollow structure of the jaw pad increases the friction of the occlusal surface, stabilizes the relative position of the upper and lower jaws, and can also induce occlusion.

In order to increase the occlusal strength of the jaw pad, the hardness of the friction part 103 of the hollow structure of the upper jaw pad 101/the lower jaw pad 201 is greater than the hardness of other parts of the upper jaw brace 100/the lower jaw brace 200. At the same time, the thickness of the friction part of the upper jaw pad 101 and the friction part of the lower jaw pad 201 can also be set to be greater than the thickness of other parts of the upper jaw brace or the lower jaw brace.

In another optional embodiment, the friction part 103 of the upper/lower jaw pad is configured as a matte surface structure, as shown in FIG. 14. In another optional embodiment, the retaining portion 2 is provided on the buccal and lingual sides of the upper jaw brace, the lower jaw brace, and the friction part 103 of the upper/mandibular pad is all set in a convex structure, as shown in FIG. 15 . In other embodiments, the structure of the friction portion may also be a structure of holes, or a structure in which holes and bump structures are provided at the same time, which is not limited here. Further, the friction part of the upper jaw pad and the friction part of the mandibular pad may be configured in different structures, which is not limited here.

In another optional embodiment, the labial side surface of the second shell-shaped body of the second shell-shaped dental instrument in contact with the teeth is also provided with a traction part for jaw orthopedic reshaping. The traction part has the same or similar structure as described above, and will not be repeated here.

Example 7

This embodiment provides a shell-shaped dental orthodontic system for malocclusion treatment. Referring to FIG. 16, it includes multiple sets of dental instrument kits. The multiple sets of dental instrument sets include at least one dental orthodontic set. The dental treatment kit includes: the shell-shaped dental instruments used for the upper and lower jaws as described in the previous embodiment (the reference numerals of each component are also the same as the previous embodiment, and will not be repeated here), the shell-shaped dental appliance The instrument is defined as a first shell-shaped dental instrument T1a, and two of the first shell-shaped dental instruments T1a can be used together.

The configuration of the traction part 3 on the first shell-shaped dental instrument T1a for the upper jaw can be used for extra-maxillary traction. The first shell-shaped dental instrument T1a of the upper jaw is connected with the front retractor through the traction part 3 to complete the upper jaw. Traction-oriented, suitable for Class III malocclusion. The two first shell-shaped dental instruments T1a are used in conjunction, and through the cooperation of the two protrusions, the protrusion height of each protrusion is reduced, and the protrusions are prevented from deforming in the sagittal direction. The traction part 3 cooperates with the front retractor to complete the traction guidance of the upper jaw. The traction part is used for 0-6 months. As the treatment time goes by, in different shell-shaped dental instruments, the convex part 102 is convex. The lift height gradually decreases.

In addition, the setting of the traction part 3 of the first shell-shaped dental instrument T1a for the lower jaw can be suitable for inter-jaw traction, that is, the traction between the upper and lower jaws. For example, the implant nail is set in the upper jaw, and the first shell-shaped dental instrument T1a The traction part 3 provided on the upper and lower jaws is hooked with the implant nail through the elastic member to perform inter-jaw traction and adjust the positional relationship between the upper and lower jaws.

Regarding the specific structure description of the first shell-shaped dental appliance T1a, please refer to the foregoing embodiment, which will not be expanded here.

Example 8

This embodiment is a shell-shaped dental orthodontic system for malocclusion treatment. Referring to FIG. 17, it includes multiple sets of dental instrument kits. The multiple sets of dental instrument sets include at least one dental orthodontic set. The orthodontic set includes: the shell-shaped dental appliance as described in the foregoing embodiment, the shell-shaped dental appliance is defined as a first shell-shaped dental appliance T1b, and also includes a second shell-shaped dental appliance T2, the second shell-shaped dental appliance The instrument T2 includes a second shell-shaped body 205, the second shell-shaped body 205 is provided with a plurality of second cavities for accommodating teeth, and the second shell-shaped dental instrument T2 is used in conjunction with the first shell-shaped dental instrument T1b The second shell-shaped body 205 is provided with a limiting portion 203 at a position corresponding to the protrusion 102 that cooperates with the protrusion and has an engaging and guiding function.

The first shell-shaped dental instrument T1b can be used for the upper jaw or the lower jaw. In this embodiment, the first shell-shaped dental instrument T1b is used for the upper jaw. At this time, the second shell-shaped dental instrument T2 is used for the lower jaw.

Same as embodiment 7, the traction part 3 of the first shell-shaped dental instrument T1b used for the upper jaw can be used for extra-maxillary traction. The first shell-shaped dental instrument T1b of the upper jaw is connected to the front retractor through the traction part 3, and is matched Complete the traction guide of the upper jaw, suitable for Angle's three types of malocclusion. The traction part 3 cooperates with the front retractor to complete the traction guidance of the upper jaw, and the traction part is used for 0-6 months. As the treatment time goes by, the height of the protrusion 102 gradually decreases.

Regarding the specific structure of the first shell-shaped dental instrument T1b, the foregoing embodiment is used, and it will not be expanded here.

The first shell-shaped body and the second shell-shaped body are shells with uneven thickness, and the thickness is 0.1-2.0 mm.

The hardness and/or elastic modulus of the friction part of the first shell-shaped body is greater than other parts of the first shell-shaped body, and the hardness and/or elasticity of the friction part of the second shell-shaped body The modulus is greater than other parts of the second shell-shaped body to increase local strength, prevent deformation and affect the treatment effect.

Example 9

This embodiment provides a shell-shaped dental orthodontic system for malocclusion treatment. Referring to FIG. 18, it includes multiple sets of dental instrument kits. The multiple sets of dental instrument sets include at least one dental orthodontic set. The dental treatment kit includes: the shell-shaped dental appliance as described in the foregoing embodiment, the shell-shaped dental appliance is defined as a first shell-shaped dental appliance T1c, and also includes a second shell-shaped dental appliance T2, the second shell-shaped dental appliance The dental instrument T2 includes a second shell-shaped body 205, the second shell-shaped body 205 is provided with a plurality of second cavities for accommodating teeth, and the second shell-shaped dental instrument 2 is matched with the first shell-shaped dental instrument T1c In use, the second shell-shaped body 205 is provided with a limiting portion 203 that cooperates with the convex portion and has an engaging and guiding function at a position corresponding to the convex portion 102.

Compared with Example 8, the first shell-shaped dental instrument T1c is used for the lower jaw, and the second shell-shaped dental instrument is used for the upper jaw. Correspondingly, the outer surface of the second shell-shaped body is in contact with the teeth. The labial side is also provided with a traction part for jaw orthopedic reshaping. The upper traction part 3 of the second shell-shaped dental instrument T2 used for the upper jaw can be used for extra-maxillary traction. The second shell-shaped dental instrument T2 of the upper jaw is connected with the front retractor through the traction part to complete the traction and guidance of the upper jaw. , Suitable for Angle's three types of malocclusion. In addition, the setting of the traction part 3 on the first shell-shaped dental instrument T1c for the lower jaw can also be applied to inter-jaw traction, that is, the traction between the upper and lower jaws, such as setting implant nails in the upper jaw, through the first shell-shaped dental instrument of the lower jaw. The traction part 3 provided on the instrument T1c is hooked with the implant nail through an elastic member to perform inter-jaw traction and adjust the positional relationship between the upper and lower jaws.

The traction part 3 cooperates with the front retractor to complete the traction guidance of the upper jaw. The traction part is used for 0-6 months. As the treatment time goes by, in different shell-shaped dental instruments, the convex part 102 is convex. The lift height gradually decreases.

Regarding the specific structures of the first shell-shaped dental instrument T1c and the second shell-shaped dental instrument T2, refer to Embodiment 3, which will not be repeated here.

Example 10

This embodiment provides a dental orthodontic system for malocclusion treatment, including several sets of braces, each set of braces includes: upper jaw braces and lower jaw braces. Among them, the first group of braces includes a first maxillary brace and a first mandibular brace, which is designed according to the dentition of the patient's first orthodontic target. The posterior regions on both sides of the first maxillary brace protrude in the mandibular direction to form a first maxillary pad, and the buccal sides of the posterior regions on both sides of the first maxillary pad are provided with retention parts. The first mandibular brace is matched with the patient's mandibular dentition, and the position of the posterior region of the first mandibular brace corresponding to the first maxillary cushion is provided with an opening limit part, the limit of the opening The cooperation of the part and the jaw pad has the function of occlusal reconstruction.

The first maxillary braces and the first mandibular braces are respectively worn on the upper and lower dentitions of the patient, and removed after wearing for a suitable period of time. The wearing time is 7-14 days. The second set of braces can also be designed according to the patient's correction situation.

The second set of braces have a similar structure to the first set of braces. The second set of braces includes a second upper jaw and a second mandibular braces, and is designed according to the patient's second orthodontic target dentition. The height of the second maxillary cushion of the second maxillary braces is smaller than the height of the first maxillary cushion of the first maxillary braces, and the patient takes it off after wearing it for 7-14 days.

In the dental correction system of this embodiment, when the patient is wearing the braces, due to the jaw opening effect of the jaw pad, the mandibular dentition is induced to retract or extend, thereby performing malocclusion correction. After the correction, the malocclusion of the patient is gradually corrected, so the height of the jaw pad is gradually reduced, until the end of the jaw pad does not need to be set, and the wearing time of the brace with the jaw pad is about 0-6 months.

It is also possible to design the next maxillary braces according to the correction situation of the patient’s dentition and wear them for correction until the correction is completed, or to design a continuous correction plan according to the patient’s actual case conditions, and prepare them into the corresponding braces, and the patient wears them. Corresponding corrective treatment.

Example 11

This embodiment provides a dental orthodontic system for malocclusion treatment, including several sets of braces, each set of braces includes: upper jaw braces and lower jaw braces. Among them, the first group of braces includes a first maxillary brace and a first mandibular brace, which is designed according to the dentition of the patient's first orthodontic target. The posterior regions on both sides of the first maxillary brace protrude in the mandibular direction to form a first maxillary pad, and the buccal sides of the posterior regions on both sides of the first maxillary pad are provided with retention parts. The posterior regions on both sides of the first mandibular braces are configured as first mandibular pads protruding upward, and the buccal sides of the posterior regions on both sides of the mandibular braces are provided with retention parts.

The second set of braces have a similar structure to the first set of braces. The second set of braces includes a second upper jaw and a second mandibular braces, and is designed according to the patient's second orthodontic target dentition. The height of the second maxillary pad of the second maxillary braces is less than the height of the first maxillary pad, the height of the second mandibular pad of the second mandibular braces is less than the height of the first mandibular pad, and the patient wears 7- Take it off after 14 days.

The next set of braces can also be designed according to the correction of the patient’s dentition, and the braces can be worn for correction until the correction is completed, or a continuous correction plan can be designed according to the actual case of the patient, and the corresponding braces can be prepared and worn by the patient. Corresponding corrective treatment. Among them, the wearing time of braces with jaw pads is about 0-6 months.

Example 12

This embodiment provides a method for designing a correction system for malocclusion, including:

S110: Design an upper shell-shaped dental instrument with a shell-shaped body, and adjust the shape of the anterior region of the upper shell-like dental instrument, so that the teeth corresponding to the anterior region are gradually aligned from the initial position to the target position for correction.

S120: Set a protrusion protruding toward the opposite jaw at the position of the posterior region corresponding to the maxillary shell-shaped dental instrument, and the protrusion and the posterior region of the mandible can achieve occlusal reconstruction so that the mandibular incisor and the maxillary incisor tend to be aligned .

S130: A retaining portion is provided on the part where the convex portion wraps the corresponding tooth, and the retaining portion is buckled with the retaining attachment provided on the tooth.

S140: A traction part is provided on the labial side where the outer surface of the maxillary shell-shaped dental instrument is in contact with the teeth, and the traction part cooperates with the maxillary extra-maxillary reverse traction to reshape the jaw bone.

S150: The height of the protrusion provided on the maxillary shell-shaped dental instrument gradually decreases with the change of the shape of the anterior tooth area of the maxillary shell-shaped dental instrument.

Optionally, the method further includes, while the jawbone is orthopedic and reshaped, the shape of the anterior tooth region of the mandibular shell-shaped dental instrument is gradually changed so that the corresponding teeth are gradually depressed from the initial position to the target position for correction.

The above-disclosed are only preferred embodiments of the present application. The preferred embodiments do not describe all the details in detail, nor do they limit this application to only the specific implementation manners described. Obviously, many modifications and changes can be made according to the content of this manual. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of this application, so that those skilled in the art can make good use of this application. This application is only limited by the claims and their full scope and equivalents.

Claims

A dental instrument used for the treatment of malocclusion, including

A shell-shaped body, the shell-shaped body is provided with a plurality of cavities for accommodating teeth, and the plurality of cavities are in communication;

It is characterized by

The shell-shaped body is provided with at least one protruding part protruding toward the opposite jaw at a position corresponding to the posterior tooth area so that the mandibular incisor and the maxillary incisor tend to align, and the convex part faces the opposite dentition The part of the occlusal surface is provided with friction parts that increase the stable contact of the upper and lower jaws during occlusal reconstruction;

The posterior tooth region corresponding to the shell-shaped body is further provided with at least one retention part that is buckled with the retention accessory provided on the corresponding tooth of the posterior tooth region and prevents the shell-shaped body from dislocating from the tooth; and

The anterior tooth area corresponding to the labial side surface of the shell-shaped body in contact with the teeth is also provided with at least one traction part for jaw orthopedic reshaping, and the traction part cooperates with the mandibular posterior teeth area at the protrusion part During occlusal reconstruction, combined with maxillary extra-maxillary reverse traction to reshape the jaw bone.
The dental instrument for malocclusion treatment according to claim 1, wherein the retaining portion comprises a first curved surface and a second curved surface, and the first curved surface and the second curved surface are enclosed to form an end In the retaining accessory accommodating space closed at the other end of the opening, the first curved surface and the second curved surface have the same bending direction, and the first curved surface and the second curved surface have different curvatures.
The dental instrument for malocclusion treatment according to claim 2, wherein the shell-shaped body includes two retention parts, which are arranged at the mesial position of the posterior teeth region corresponding to the protrusion part;

And/or, the shell-shaped body includes two traction parts, which are symmetrically arranged on the corresponding anterior teeth area of the lip side of the shell body.
The dental instrument for malocclusion treatment according to any one of claims 1 to 3, wherein the retention part and the traction part are configured such that when the retention part is externally traction, the retention part The direction of the resultant retention force generated by the retention accessory acting on the retention portion and the direction of the traction force received by the traction portion form a certain angle.
The dental appliance for malocclusion treatment according to claim 4, wherein the included angle is greater than or equal to 70° but less than or equal to 100°; or, the included angle is greater than or equal to 70° but less than or equal to 90° , Or greater than or equal to 90° but less than or equal to 100°; or, the included angle is 90°.
The dental appliance for malocclusion treatment according to claim 4 or 5, wherein the force direction generated by the action of the retention part and the retention attachment is perpendicular to the force application direction generated by the traction part.
The dental appliance for malocclusion treatment according to any one of claims 1 to 4, wherein the traction part and the shell-shaped body are provided separately or integrally formed.
The dental instrument for malocclusion treatment according to claim 7, wherein when the traction part and the shell-shaped body are arranged separately, the shell-shaped body is also provided with a mating part that cooperates with the traction part. The traction part passes through the hole and is connected and fixed to the shell-shaped body; the traction part is protrudingly provided in the anterior tooth area corresponding to the labial side surface of the shell-shaped body in contact with the teeth.
The dental appliance for malocclusion treatment according to claim 7 or 8, wherein the traction part itself is a split structure, and the split structure is on the inner surface and the outer surface of the shell-shaped body. The surface is connected to the shell-shaped body through a snap fit.
The dental instrument for malocclusion treatment according to claim 9, wherein the traction part comprises a bottom, a connecting rod and a top, and the bottom is provided on the inner surface of the shell-shaped body through the connection The rod passes through the shell-shaped body and is connected to the top, and the top is arranged on the outer surface of the shell-shaped body.
The dental appliance for malocclusion treatment according to claim 7, wherein the traction part and the shell-shaped body are separately arranged by bonding and fixing.
A dental instrument set for malocclusion treatment, characterized in that it comprises a first shell-shaped dental instrument and a second shell-shaped dental instrument;

The first shell-shaped dental appliance is the dental appliance according to any one of claims 1-11, and the second shell-shaped dental appliance comprises a second shell-shaped body;

The second shell-shaped body is provided with a plurality of second cavities for accommodating the second dentition, and the second shell-shaped body is provided with at least one and the first cavities at positions corresponding to the protrusions of the first shell-shaped body. A limit part that fits with the convex part of the shell-shaped body and promotes occlusion induction;

The second shell-shaped dental appliance is used in cooperation with the first shell-shaped dental appliance.
The dental instrument set for malocclusion treatment according to claim 12, wherein the outer surface of the second shell-shaped body of the second shell-shaped dental instrument is provided with a labial side surface that contacts the teeth. The traction part of jaw orthopedic reshaping.
A shell-shaped dental orthodontic system for the treatment of malocclusion, comprising a plurality of dental instrument sets, characterized in that at least one dental instrument set is the treatment of malocclusion as claimed in claim 12 or 13. Dental instrument kit.
The shell-shaped dental orthodontic system according to claim 14, wherein the protrusion height of the protrusion on the shell-shaped dental appliance in the dental appliance set gradually decreases with the orthodontic process.