A double-plate appliance for correcting Class III malocclusion

Abstract

The present invention provides a double-cage orthodontic appliance for correcting Class III malocclusion, comprising an upper clapboard adapted to the maxilla and a lower clapboard adapted to the left and right sides of the mandible, an upper base adapted to the maxillary palatal side is arranged on the inner side of the upper clapboard, a hyperbolic tongue spring is connected to the inner side of the upper base, the end of the hyperbolic tongue spring is embedded in the upper base, upper guide slopes inclined backwards are arranged on the left and right sides of the front end of the upper clapboard, an upper retaining clip for fixing the upper clapboard on the maxillary teeth is arranged in the posterior tooth area and the canine area of ​​the upper clapboard, the lower clapboard comprises a left lower clapboard and a right lower clapboard, a lower guide slope inclined backwards and capable of correspondingly contacting and cooperating with the upper guide slope is arranged in the canine first bicuspid area of ​​the left and right lower clapboards, a hyperbolic lip bow adapted to the anterior teeth on the labial side of the mandible is connected near the outer ends of the left and right lower clapboards, and lower retaining clips for fixing the left and right lower clapboards on the mandibular teeth are arranged near the buccal sides of the outer sides of the left and right lower clapboards. This double-jointed appliance effectively takes functional factors into account when solving Class III malocclusion.

Description

Technical Field

[0001] The present invention relates to the technical field of oral medical devices, and in particular to a double-plate appliance for correcting Class III malocclusion. Background Art

[0002] Malocclusion refers to the abnormalities of teeth, jaws and face such as misaligned teeth, abnormal occlusal relationship of upper and lower dental arches, abnormal size, shape and position of jaws, etc., caused by congenital genetic factors or acquired environmental factors such as diseases, bad oral habits, and tooth replacement disorders during the growth and development of children. Angle's Class III malocclusion is a common malocclusion in clinical practice, mainly manifested by anterior crossbite (also known as "underbite"), excessive mandibular development and depression in the middle of the face. At present, the methods for correcting Angle's Class III malocclusion mainly include early functional correction, concealment correction of permanent dentition, and orthodontic and orthognathic correction at the end of growth and development. Early correction mainly includes front traction, Frank III functional appliance and jaw pad appliance. However, some of these appliances are not suitable for daytime wear, some are not suitable for wearing during meals, and some do not consider and control the functional factors of malocclusion. Summary of the invention

[0003] In view of the shortcomings of current orthodontic appliances, the present invention provides a double-plate orthodontic appliance for correcting Class III malocclusion, which can better perform or assist in the correction of Angle's Class III malocclusion from multiple aspects such as dental, skeletal and functional aspects.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A double-cage orthodontic appliance for correcting Class III malocclusion, comprising an upper clapboard and a lower clapboard, wherein the upper clapboard is adapted to the maxilla, an upper base adapted to the palatal side of the maxilla is arranged on the inner side of the upper clapboard, a hyperbolic tongue spring is connected to the inner side of the upper base, one end of the hyperbolic tongue spring is located on the palatal side of the maxillary anterior teeth, and the other end of the hyperbolic tongue spring is embedded in the upper base, upper guide slopes inclined backwards are arranged on the left and right sides of the front end of the upper clapboard, and upper retaining clips for fixing the upper clapboard on the maxillary teeth are arranged on the posterior tooth area and the canine area of ​​the upper clapboard; The lower jaw plate includes a left lower jaw plate and a right lower jaw plate, which are respectively adapted to the left and right posterior teeth of the mandible and the lingual mucosa of the posterior tooth area, and the first bicuspid area of ​​the canines of the left lower jaw plate and the right lower jaw plate is provided with a lower guide inclined surface which is inclined backward and can correspond to and contact with the upper guide inclined surface, and the left lower jaw plate and the right lower jaw plate are connected near the outer end with a hyperbolic lip bow adapted to the labial anterior teeth of the mandible, and the posterior tooth area and canine area of ​​the left lower jaw plate and the right lower jaw plate are provided with lower retaining cards for fixing the left and right lower jaw plates on the mandibular teeth.

[0006] Compared with the prior art, when the double-clip orthodontic appliance for correcting Class III malocclusion provided by the present invention is used, the upper clapboard is first worn on the patient's upper jaw, and the maxillary anterior teeth can be moved toward the labial side by applying force through a hyperbolic tongue spring, and fixed to the maxillary teeth by upper retaining clips arranged in the posterior tooth area and the canine area. At the same time, the left and right lower clapboards are worn on the patient's lower jaw, and fixed to the mandibular teeth by lower retaining clips arranged in the posterior tooth area and the canine area. Thereafter, when the patient closes his mouth, the lower guide slope can cooperate with the upper guide slope to limit the contact of the lower guide slope, thereby achieving the effect of inhibiting the development of the mandible and promoting the development of the maxilla; at the same time, the traction hooks of the maxillary lateral incisors and the canines backwards can be connected to the front traction device, further promoting the forward development of the maxilla; further, the hyperbolic lip bow in the anterior tooth area of ​​the lower clapboard can apply force to retract the lower anterior teeth to further reduce the cross-overjet of the anterior teeth. Therefore, this double-plate orthodontic appliance can better correct Angle's Class III malocclusion at an early stage, and can better correct Angle's Class III malocclusion from various aspects such as dental, functional and skeletal factors. It effectively takes into account dental, bone type and functional factors when solving Class III malocclusion, and is convenient and practical.

[0007] Furthermore, a lower base adapted to the mandibular palatal side and connecting the left lower jaw plate and the right lower jaw plate is provided on the inner side of the left lower jaw plate and the right lower jaw plate.

[0008] Furthermore, the angle between the upper guiding slope and the lower guiding slope and the occlusal plane is 65 to 75 degrees.

[0009] Furthermore, the upper closing plate is provided with a backward traction hook corresponding to the incisal attachment between the maxillary lateral incisor and the canine.

[0010] Furthermore, the upper retention card and the lower retention card are arrowhead cards, single-arm cards, T-shaped cards or interproximal hooks, which can be placed on the lip and cheek side or on the tongue and palate side.

[0011] Furthermore, a spiral expander or a diamond-shaped expansion spring is installed in the middle of the upper base. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of a double-plate appliance for correcting Class III malocclusion provided by the present invention.

[0013] Figure 2 It is a schematic diagram of the upper cladding structure provided by the present invention.

[0014] Figure 3 It is a schematic diagram of the structure of the lower cladding plate provided by the present invention.

[0015] Figure 4 yes Figure 1 A partial enlarged view of point A in the middle.

[0016] Figure 5 It is a structural schematic diagram of a spiral expander installed in the middle of an upper base.

[0017] Figure 6 It is a structural schematic diagram of a diamond-shaped expansion spring installed in the middle of the upper base.

[0018] In the figure, 1, upper closing plate; 10, upper guiding slope; 11, upper base; 12, hyperbolic tongue spring; 14, upper retaining clip; 15, traction hook; 2, lower closing plate; 20, lower guiding slope; 21, lower left closing plate; 22, lower right closing plate; 23, hyperbolic lip bow; 24, lower retaining clip; 25, spiral expander; 26, diamond expansion spring; 27, lower base. DETAILED DESCRIPTION

[0019] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below with reference to specific diagrams.

[0020] Please refer to Figures 1 to 3 As shown, the present invention provides a double-cage orthodontic appliance for correcting Class III malocclusion, comprising an upper clapboard 1 and a lower clapboard 2. The upper clapboard 1 is adapted to the maxilla, and an upper base 11 adapted to the maxillary palate is provided on the inner side of the upper clapboard 1. A hyperbolic tongue spring 12 is connected to the inner side of the upper base 11. One end of the hyperbolic tongue spring 12 is located on the palate side of the maxillary anterior teeth, and the other end of the hyperbolic tongue spring 12 is embedded in the upper base. The upper base 11 can be made of plastic. The left and right sides of the front end of the upper clapboard 1 are provided with upper guide slopes 10 tilted backwards, and the posterior tooth area and canine area of ​​the upper clapboard 1 are provided with upper retaining clips 14 for fixing the upper clapboard 1 on the maxillary teeth. The lower plate 2 includes a left lower plate 21 and a right lower plate 22, which are adapted to the left and right posterior teeth and the lingual mucosa of the posterior teeth area of ​​the mandible respectively. The inner sides of the left lower plate 21 and the right lower plate 22 are provided with a lower base 27 adapted to the mandibular palatal side and connected to the left lower plate 21 and the right lower plate 22. The canine first bicuspid area of ​​the left lower plate 21 and the right lower plate 22 is provided with a lower guide slope 20 that is tilted backward and can be contacted and matched with the upper guide slope 10. The left lower plate 21 and the right lower plate 22 are connected to a hyperbolic lip bow 23 adapted to the labial anterior teeth of the mandible near the outer end, and the posterior tooth area and canine area of ​​the left lower plate 21 and the right lower plate 22 are provided with a lower retaining card 24 that fixes the left and right lower plates to the mandibular teeth.

[0021] Compared with the prior art, when the double-clip orthodontic appliance for correcting Class III malocclusion provided by the present invention is used, the upper clapboard is first worn on the patient's upper jaw, and the maxillary anterior teeth can be moved toward the labial side by applying force through a hyperbolic tongue spring, and fixed to the maxillary teeth by upper retaining clips arranged in the posterior tooth area and the canine area. At the same time, the left and right lower clapboards are worn on the patient's lower jaw, and fixed to the mandibular teeth by lower retaining clips arranged in the posterior tooth area and the canine area. Thereafter, when the patient closes his mouth, the lower guide slope can cooperate with the upper guide slope to limit the contact of the lower guide slope, thereby achieving the effect of inhibiting the development of the mandible and promoting the development of the maxilla; at the same time, the traction hooks of the maxillary lateral incisors and the canines backwards can be connected to the front traction device, further promoting the forward development of the maxilla; further, the hyperbolic lip bow in the anterior tooth area of ​​the lower clapboard can apply force to retract the lower anterior teeth to further reduce the cross-overjet of the anterior teeth. Therefore, this double-plate orthodontic appliance can better correct Angle's Class III malocclusion at an early stage, and can better correct Angle's Class III malocclusion from various aspects such as dental, functional and skeletal factors. It effectively takes into account dental, bone type and functional factors when solving Class III malocclusion, and is convenient and practical.

[0022] As a specific embodiment, the angle between the upper guiding slope and the lower guiding slope and the occlusal plane is 65 to 75 degrees. Figure 4 As shown, when the lower guiding bevel 20 contacts and cooperates with the upper guiding bevel 10, the lower guiding bevel 20 can cooperate with the upper guiding bevel 10 to limit the contact of the lower guiding bevel 20, thereby inhibiting the mandibular development and achieving better stretching correction of the maxilla. As a preferred embodiment, the angle between the guiding bevel and the lower guiding bevel and the occlusal plane is about 70 degrees.

[0023] As a specific embodiment, the upper closing plate 1 is provided with a backward traction hook 15 corresponding to the incisal attachment between the maxillary lateral incisor and the canine, so that it can be used for forward traction connection.

[0024] As a specific embodiment, the upper retention card 14 and the lower retention card 24 are arrow cards, single-arm cards, T-shaped cards or interproximal hooks, which can be placed on the lip and cheek side or on the tongue and palate side, so that the upper closing plate 1 and the lower closing plate 2 can be fixed on the maxilla and mandible respectively.

[0025] A spiral expander 25 or a diamond expansion spring 26 is installed in the middle of the upper base 11. Figure 5 and Figure 6 shown.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A double-jointed plate appliance for correcting Class III malocclusion, characterized in that: It comprises an upper closing plate and a lower closing plate, the upper closing plate is adapted to the maxilla, an upper base adapted to the maxillary palate is arranged on the inner side of the upper closing plate, a hyperbolic tongue spring is connected to the inner side of the upper base, one end of the hyperbolic tongue spring is located on the palate side of the maxillary anterior teeth, the other end of the hyperbolic tongue spring is embedded in the upper base, upper guide slopes inclined backwards are arranged on the left and right sides of the front end of the upper closing plate, upper retaining cards for fixing the upper closing plate on the maxillary teeth are arranged in the posterior tooth area and the canine area of ​​the upper closing plate, and a backward traction hook is arranged on the upper closing plate corresponding to the incisal attachment between the maxillary lateral incisor and the canine; the lower closing plate comprises a left lower closing plate and a right lower closing plate, the left lower closing plate and the right lower closing plate are respectively connected to the upper jaw, and the upper jaw is provided with a plurality of upper retaining cards for fixing the upper closing plate on the maxillary teeth ... The left and right mandibular posterior teeth and the lingual mucosa of the posterior tooth area are adapted to each other; the inner sides of the left and right lower jaw plates are provided with a lower base adapted to the mandibular palatal side and connected to the left and right lower jaw plates; the canine first bicuspid area of ​​the left and right lower jaw plates is provided with a lower guide slope that is tilted backward and can correspond to and contact with the upper guide slope; the upper guide slope and the lower guide slope both form an angle of 65 to 75 degrees with the occlusal plane; the left and right lower jaw plates are connected with a hyperbolic lip bow adapted to the mandibular labial anterior teeth near the outer ends; the posterior tooth area and canine area of ​​the left and right lower jaw plates are provided with a lower retaining card that fixes the left and right lower jaw plates on the mandibular teeth.

2. The double-joint plate appliance for correcting Class III malocclusion according to claim 1, characterized in that: The upper retention card and the lower retention card are arrowhead cards, single-arm cards, T-shaped cards or interproximal hooks.

3. The double-joint plate appliance for correcting Class III malocclusion according to claim 1, characterized in that: A spiral expander or a diamond-shaped expansion spring is installed in the middle of the upper base.

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