Correcting appliance for correcting Angler class III malocclusion

Abstract

The utility model provides an appliance for correcting Angler class III malocclusion. Comprising an upper jaw casting type expansion device, a lower jaw casting type lip shield and an elastic connecting piece, and the upper jaw casting type expansion device comprises a spiral expander, a front palatal bar, a rear palatal bar, a palatal side connecting rod, an anterior tooth separated palatal arch, a cheek side traction hook, an upper jaw first premolar casting belt ring and an upper jaw first molar casting belt ring; a cheek tube is arranged on the upper jaw first molar casting belt ring; the lower jaw casting type lip shield comprises a labial arch, a lingual arch and a lower jaw first molar casting belt ring, and a lip shield traction hook is arranged at the front part of the labial arch; the elastic rubber ring is used for traction between the cheek tube and the lip shield traction hook of the appliance, and is matched with the rapid expansion and contraction of the maxillary to achieve the effect of correcting III-type malocclusion, so that a patient can wear the appliance all day long, the development of the maxillary bone is promoted, the correction period is accelerated, and the appliance does not need to depend on a mask tractor outside the mouth.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of corrector, specifically, relate to a kind of for correcting Class III malocclusion appliance. BACKGROUND

[0002] Class III malocclusion is characterized by molar mesial relationship, and anterior teeth often present as a blade or reverse integration. This type of malocclusion has a serious impact on oral function, facial aesthetics and mental health, and the symptoms gradually worsen with the growth and aging of the patient. Currently, the methods for correcting Class III malocclusion include early correction, camouflage treatment during the permanent dentition period, and orthodontic and orthognathic combined treatment after the growth and development are completed. Traditional appliances for early correction include extraoral maxillary forward traction, functional regulator type III (FR-III), head cap chin pouch and jaw pad appliance, etc. However, these appliances rely on extraoral devices for positioning and stretching or are removable, requiring high patient cooperation. If the patient does not wear the appliance as required, the correction effect will be affected. SUMMARY

[0003] To overcome the deficiencies of the prior art, a kind of for correcting Class III malocclusion appliance is provided. The specific technical solutions of the utility model are as follows:

[0004] The appliance for correcting Class III malocclusion includes a maxillary cast expansion appliance, a mandibular cast lip bumper, and a flexible connecting member. The maxillary cast expansion appliance includes a telescopic adjustable spiral expander. The front ends of the spiral expander are respectively provided with front palatal bars. The rear ends of the spiral expander are respectively provided with rear palatal bars. The front palatal bars are respectively connected with maxillary first premolar cast rings. The rear palatal bars are respectively connected with maxillary first molar cast rings. The maxillary first premolar cast rings are connected by palatal connecting rods. The inner side of the maxillary first premolar cast ring is provided with a front tooth separation palatal arch. The outer side of the maxillary first premolar cast ring is provided with a buccal side traction hook. The maxillary first premolar cast ring is provided with a bracket. The maxillary first molar cast ring is provided with a buccal tube. The mandibular cast lip bumper includes a lip arch and a tongue arch. The first ends of the lip arch and the tongue arch are respectively connected with left mandibular first molar cast rings. The ends of the lip arch and the tongue arch are respectively connected with right mandibular first molar cast rings. The front part of the lip arch is provided with a lip bumper traction hook. The flexible connecting member is used to connect the lip bumper traction hook and the buccal tube.

[0005] Preferably, the lip arch, the tongue arch, the left mandibular first molar cast ring, and the right mandibular first molar cast ring are integrated.

[0006] Preferably, the connection between the upper first premolar casting band ring and the bracket and the upper first molar casting band ring and the buccal tube is welding.

[0007] Preferably, the lip block traction hook is in the shape of a water droplet.

[0008] Preferably, the initial end of the buccal side traction hook is located on the buccal proximal side of the upper first premolar casting band ring, extending to the gingival side of the upper canine or deciduous canine crown, and the terminal end of the buccal side traction hook is in the shape of a hook curved distally, and is 1mm away from the gum.

[0009] Preferably, the lip arch is located in the middle 1 / 3 of the labial buccal side of the lower dental arch, and is 2mm away from the dental surface.

[0010] Preferably, the lip block traction hook is arranged between the lower bilateral incisors and canines or the lower bilateral incisors and deciduous canines, and is perpendicular to the lip arch in the direction of the gingival side.

[0011] Preferably, the bracket is an MBT bracket.

[0012] The beneficial technical effects achieved by the utility model include:

[0013] The medical staff respectively adheres the upper casting type expansion arch and the lower casting type lip block to the upper and lower dental arches of the patient through glass ionomer cement, since the patient in this embodiment is a permanent dentition, the upper first premolar casting band ring and the upper first molar casting band ring are respectively placed on the upper bilateral first premolars and first molars, the screw expander on the upper casting type expansion arch can be adjusted to expand or contract the upper jaw, so that the upper jaw suture is loosened, which is conducive to promoting the growth of the upper jaw; the lingual arch is attached to the dental neck of the lingual side of the lower dental arch, and the lip arch is located in the middle 1 / 3 of the labial buccal side of the lower dental arch, and is 2mm away from the dental surface; the patient can connect the buccal tube on the upper casting type expansion arch and the lip block traction hook on the lower casting type lip block through the elastic connecting piece, at this time, the elastic connecting piece is located in the mouth, has less influence on appearance, and can be worn all day; the elastic connecting piece has a traction force value of 300g-500g per side, so as to provide orthopedic force and promote the development of the upper jaw; the elastic connecting piece can be an elastic rubber ring, which is replaced once a day, and has low replacement cost; the elastic rubber ring is pulled between the buccal tube and the lip block traction hook of the appliance, and the upper jaw is quickly expanded and contracted, so as to correct the class III malocclusion, realize all-day wearing of the appliance by the patient, promote the development of the upper jaw, speed up the correction period, and realize correction without relying on the external mask traction device. BRIEF DESCRIPTION OF DRAWINGS

[0014] The present application can be further understood from the following description in conjunction with the drawings in which: The components in the drawings are not necessarily drawn to scale, emphasis instead being placed upon illustrating the principles of the embodiments. In different views, identical reference numerals designate corresponding parts.

[0015] Figure 1 Figure is the schematic diagram of the overall connection structure of the embodiment 1 of the present application;

[0016] Figure 2 Figure is the schematic diagram of the top view structure of the maxillary casting type expansion appliance of the present application;

[0017] Figure 3 Figure is the schematic diagram of the top view structure of the mandibular casting type lip bumper of the present application;

[0018] Figure 4 Figure is the schematic diagram of the overall connection structure of the embodiment 2 of the present application;

[0019] In the figure: 1, maxillary casting type expansion appliance; 10, anterior tooth separation type palatal arch; 11, buccal side traction hook; 12, maxillary first premolar casting band; 13, palatal side connecting rod; 14, maxillary first molar casting band; 15, anterior palatal rod; 16, posterior palatal rod; 17, spiral expander; 18, bracket; 19, buccal tube; 2, mandibular casting type lip bumper; 20, left side mandibular first molar casting band; 21, right side mandibular first molar casting band; 22, lip arch; 23, tongue arch; 24, lip bumper traction hook; 3, elastic connecting piece; 4, mask puller. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below in combination with the embodiments; it should be understood that the specific embodiments described herein are only used to explain the present application, and are not used to limit the present application. For those skilled in the art, after reading the following detailed description, other systems, methods and / or features of the present embodiment will become apparent. All such additional systems, methods, features and advantages are intended to be included within the scope of the present application, included within the scope of the present application, and protected by the appended claims. In the following, additional features of the disclosed embodiments are described in detail, and these features will be apparent from the following detailed description.

[0021] The same or similar reference signs in the drawings of the embodiments of the present application correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed in a specific orientation and be operated, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration and cannot be understood as a limitation on the present patent, and for those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0022] Embodiment 1:

[0023] A kind of appliance for correcting Angle Ⅲ malocclusion, including maxillary cast type expansion device 1, lower jaw cast type lip block 2 and elastic connecting piece 3, maxillary cast type expansion device 1 includes telescopic adjustable screw expander 17, the front end of the screw expander 17 is extended and arranged with front palatal bar 15 on both sides, the rear end of the screw expander 17 is extended and arranged with rear palatal bar 16 on both sides, the front palatal bar 15 is all connected and arranged with maxillary first premolar cast band ring 12, the rear palatal bar 16 is all connected and arranged with maxillary first molar cast band ring 14, the maxillary first premolar cast band ring 12 and the maxillary first molar cast band ring 14 are connected by palatal side connecting rod 13, the maxillary first premolar cast band ring 12 is provided with front tooth separation type palatal arch 10 towards inner side, the maxillary first premolar cast band ring 12 is provided with bracket 18, the maxillary first molar cast band ring 14 is provided with buccal tube 19, the lower jaw cast type lip block 2 includes lip arch 22 and tongue arch 23, the first end of the lip arch 22 and the tongue arch 23 is all connected and arranged with left lower jaw first molar cast band ring 20, the end of the lip arch 22 and the tongue arch 23 is all connected and arranged with right lower jaw first molar cast band ring 21, the front of the lip arch 22 is provided with lip block traction hook 24, the elastic connecting piece 3 is used for the connection between the lip block traction hook 24 and the buccal tube 19.

[0024] Specifically, as shown in Figures 1-3 The medical staff respectively adheres maxillary cast type expansion device 1 and lower jaw cast type lip block 2 on the upper and lower dentition of patient by glass ionomer cement, wherein, as shown in Figure 2 Since the patient of this embodiment is permanent dentition, the maxillary first premolar cast band ring 12 and the maxillary first molar cast band ring 14 are placed on the first premolar and the first molar of the maxillary bilateral respectively, by adjusting the screw expander 17 on the maxillary cast type expansion device 1, the maxillary bone can be expanded or contracted, so that the maxillary bone suture is loosened, which is conducive to promoting the growth of the maxillary bone forward, as shown in Figure 3As shown, the lingual arch 23 is in contact with the neck of the lingual side of the lower teeth, and the labial arch 22 is located at the middle 1 / 3 of the labial side of the lower teeth, and is 2mm away from the teeth surface; as shown Figure 1 As shown, the patient can connect the buccal tube 19 on the upper jaw cast expansion device 1 and the lip block traction hook 24 on the lower jaw cast lip block 2 through the elastic connecting piece 3, at this time the elastic connecting piece 3 is located in the mouth, which has less influence on appearance, and can be worn all day; the elastic connecting piece 3 has a traction force value of 300g-500g per side, thereby providing orthopedic force to promote the development of the upper jaw, and the elastic connecting piece 3 can be an elastic rubber ring, which is replaced once a day and has low replacement cost; through the elastic rubber ring traction between the buccal tube 19 and the lip block traction hook 24 of the present appliance, and cooperating with the upper jaw rapid expansion and contraction, the function of correcting class III malocclusion is achieved, and the patient can wear the appliance all day to promote the development of the upper jaw, speed up the correction period, and achieve tooth correction without relying on the external mask traction device 4.

[0025] Further, the labial arch 22, the lingual arch 23, the left lower first molar cast band 20 and the right lower first molar cast band 21 are an integrated structure. The lower jaw cast lip block 2 connects the left lower first molar cast band 20 and the right lower first molar cast band 21 into a whole through the labial arch 22 and the lingual arch 23, which is more stable, and makes the elastic force act on the bilateral lower first molars and be transmitted to the entire lower teeth, thereby being beneficial to the improvement of the class III relationship.

[0026] Further, the connection mode between the upper first premolar cast band 12 and the bracket 18 and between the upper first molar cast band 14 and the buccal tube 19 is welding. Through the welding form, the connection between the upper first premolar cast band 12 and the bracket 18 and between the upper first molar cast band 14 and the buccal tube 19 is more reliable.

[0027] Further, the lip block traction hook 24 is in the shape of a water droplet, which can prevent the elastic connecting piece 3 connected between the buccal tube 19 and the lip block traction hook 24 from falling off during the connection process.

[0028] Embodiment 2:

[0029] The outer side of the upper first premolar cast band 12 is provided with a buccal side traction hook 11, the initial end of the buccal side traction hook 11 is located at the buccal surface mesial side of the upper first premolar cast band 12, extends to the gum side of the upper canine crown, the end of the buccal side traction hook 11 is in the shape of a hook curved to the distal side, and is 1mm away from the gum. The patient wears the appliance at night, as shown Figure 4As shown, the buccal side traction hook 11 can also be tractioned with elastic rubber between the extraoral mask traction 4, while the buccal tube 19 and the lip stop traction hook 24 are tractioned with elastic rubber, both of which are synchronized to further strengthen the jaw orthopedic effect and shorten the correction period. The buccal side traction hook 11 which is 1mm away from the gum is not easy to damage the oral mucosa while facilitating the placement of elastic rubber. The hook-shaped buccal side traction hook 11 is not easy to fall off during elastic traction.

[0030] Further, the lip arch 22 is located at the middle 1 / 3 of the labial and buccal side of the lower tooth surface, and is 2mm away from the tooth surface. Since the lip arch 22 does not contact the lower jaw teeth, it is not easy to cause the lingual inclination of the lower anterior teeth when using the elastic connecting piece 3 for elastic traction, thereby avoiding the side effects of lower anterior tooth alveolar bone windowing and bone cracking.

[0031] Further, the lip stop traction hook 24 is arranged at the position between the bilateral incisors and canines of the lower jaw, and the direction is perpendicular to the lip arch 22 towards the gum. The traction direction of the elastic connecting piece 3 is upward and backward, which is beneficial for the correction of Angle III malocclusion.

[0032] Further, the bracket 18 is an MBT bracket. The upper maxillary cast expansion arch 1 of this appliance has an MBT bracket welded on the buccal surface of the first upper premolar cast band ring 12, and a buccal tube 19 welded on the buccal surface of the first upper molar cast band ring, so when the patient has upper anterior teeth misalignment, the bracket 18 of the upper anterior teeth can be bonded and the arch wire can be placed to align, or the arch wire can be placed to add force to move the upper anterior teeth to the labial side, and assist in resolving the anterior teeth reverse combination.

[0033] Although the present application has been described above with reference to various embodiments, it should be understood that many changes and modifications can be made without departing from the scope of the present application. That is, the methods, systems and devices discussed above are examples. Various configurations can omit, substitute, or add various procedures or components as appropriate. For instance, the methods described can be performed in an order different from that described, and / or various steps can be added, omitted, and / or combined. Also, features described with respect to certain configurations can be combined in various other configurations, for instance, different aspects and elements of configurations can be combined in a similar manner. Also, technology evolves and, thus, many of the elements are examples and do not limit the scope of the disclosure or claims. In general, the disclosure encompasses any combination of the elements.

[0034] In the description specific details are set forth in order to provide a thorough understanding of the exemplary configurations including implementations. However, configurations can be practiced without these specific details, e.g., without the specific

[0035] In view of the above, it will be seen that the details set forth in the preceding description are illustrative only and should not be taken as limiting the scope of the application since other configurations could be utilized without departing from the spirit and scope of the present application. These embodiments were described in sufficient detail to enable one skilled in the art to make and use it, and to claim the present application. The embodiments were described as separate alternatives but combinations of these embodiments can be made and still be within the scope of the present application. Other substitutions, modifications, changes, and omissions can be made in the design, operating conditions, and arrangement of the various configurations without departing from the spirit of the present application as expressed in the appended claims.

Claims

1. An orthodontic appliance for correcting Angle Class III malocclusion, characterized in that, The device includes a cast maxillary expander (1), a cast mandibular lip guard (2), and an elastic connector (3). The cast maxillary expander (1) includes a retractable and adjustable spiral expander (17). Palatal bars (15) extend from both sides of the front end of the spiral expander (17), and palatal bars (16) extend from both sides of the rear end of the spiral expander (17). Each palatal bar (15) is connected to a cast ring (12) for the first maxillary premolar, and each palatal bar (16) is connected to a cast ring (14) for the first maxillary premolar. The cast rings (12) and (14) for the first maxillary premolar are connected by a palatal connecting rod (13). 12) An anterior tooth-separated palatal arch (10) is provided on the inner side. A bracket (18) is provided on the cast band (12) of the maxillary first premolar. A buccal tube (19) is provided on the cast band (14) of the maxillary first molar. The mandibular cast lip guard (2) includes a lip arch (22) and a lingual arch (23). The first ends of the lip arch (22) and the lingual arch (23) are connected to the cast band (20) of the left mandibular first molar. The ends of the lip arch (22) and the lingual arch (23) are connected to the cast band (21) of the right mandibular first molar. A lip guard traction hook (24) is provided at the front of the lip arch (22). The elastic connector (3) is used for the connection between the lip guard traction hook (24) and the buccal tube (19).

2. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, The labial arch (22), lingual arch (23), cast band of the left mandibular first molar (20), and cast band of the right mandibular first molar (21) are an integrated structure.

3. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, The connection between the cast band (12) of the maxillary first premolar and the bracket (18), and between the cast band (14) of the maxillary first molar and the buccal tube (19), are all welded.

4. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, The lip-stop traction hook (24) is teardrop-shaped.

5. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, A buccal traction hook (11) is provided on the outer side of the casting band (12) of the maxillary first premolar. The starting end of the buccal traction hook (11) is located on the mesial side of the buccal surface of the casting band (12) of the maxillary first premolar, extending to the gingival side of the crown of the maxillary canine or deciduous canine. The end of the buccal traction hook (11) is a hook-shaped hook that curves distally and is 1 mm away from the gingiva.

6. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, The labial arch (22) is located in the middle 1 / 3 of the labial and buccal side of the lower dentition tooth surface, and is 2 mm away from the tooth surface.

7. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, The lip guard traction hook (24) is positioned between the mandibular bilateral lateral incisors and canines or the mandibular bilateral lateral incisors and deciduous canines, with the direction perpendicular to the labial arch towards the gingiva.

8. The orthodontic appliance for correcting Angle Class III malocclusion according to claim 1, characterized in that, The bracket (18) is an MBT bracket.

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