Sectional type appliance capable of rapidly correcting anterior tooth reverse inflexion

Abstract

The invention discloses a sectional type appliance for rapidly correcting anterior tooth reverse occlusal, which comprises an upper appliance and a lower appliance, each appliance comprises a reverse occlusal tooth socket for covering reverse occlusal dislocation teeth and other dentition tooth sockets for covering other teeth, and the reverse occlusal tooth socket is connected with the other dentition tooth sockets through an elastic structure. When the orthodontic device is used for correcting seriously staggered teeth, tongue-side thrust and lip-side tension are generated on the staggered teeth due to the existence of the elastic connecting structure after the orthodontic device is in place; in addition, due to the existence of the elastic connecting structure, the appliance generates a force for expanding a gap after being in place, so that the reverse inhale teeth are helped to obtain a tooth movement space to realize rapid movement; in addition, an occlusal force inducing inclined plane is arranged at the contact part of the appliance body part and the involution teeth, and the occlusal force can be utilized to correct the involution teeth through the inclined plane, so that the treatment and correction time of individual tooth involution is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of dental orthodontic devices, and in particular to a segmented appliance for rapid correction of anterior crossbite. BACKGROUND

[0002] Anterior crossbite, also known as "overbite" (lower anterior teeth covering upper anterior teeth), is a common dental and skeletal development problem in orthodontics, especially in patients during the mixed dentition and permanent dentition periods. This problem not only affects the facial aesthetics of patients, but also can have a significant impact on the development of the maxillofacial bones and oral function (such as mastication and pronunciation). Therefore, early intervention for patients with anterior crossbite is crucial. Early intervention not only allows for effective correction when the potential of tooth and bone development has not yet fully developed, but also reduces the risk of complex orthodontic treatment or even surgery that may be required in adulthood, while improving the quality of life of patients.

[0003] Currently, traditional appliances are one of the main tools for correcting crossbite during the mixed dentition and permanent dentition periods. However, there are many limitations in the design and function of traditional appliances, which restrict their application effect in clinical treatment. For example, traditional appliances usually use bite plate tongue spring appliances to correct crossbite with scattered spaces in the lower jaw. This appliance achieves tooth movement by applying a single force on the lingual side of the upper anterior teeth, but its force application method is single, and its sustainability and stability depend on the patient's frequency of follow-up visits. Generally, patients need to visit the doctor every two weeks to adjust the appliance and apply force. Frequent follow-up visits not only increase the time and economic costs of patients, but also may affect the treatment effect due to treatment interruption or insufficient force.

[0004] In addition, traditional appliances generally use the so-called "bite pry method" to correct crossbite, that is, through the antagonistic occlusion of the upper and lower teeth to achieve the purpose of correction. However, this method does not have precise control over the teeth, which can lead to uncontrollable tooth movement, and even may cause side effects such as misalignment of other teeth or damage to periodontal tissue. Therefore, how to improve the control accuracy and correction effect of the appliance has become an important research direction.

[0005] In recent years, invisible aligners have gradually become the mainstream choice in the field of orthodontic treatment due to their transparent and aesthetic appearance, comfortable wearing, and convenient removal. Invisible aligners are designed and manufactured through digital technology, which can provide personalized treatment plans for patients. However, the invisible aligners currently on the market are mainly aimed at adult orthodontic needs and do not have a special solution for crossbite in the mixed dentition or permanent dentition period. This makes invisible aligners face certain limitations in the early intervention of patients with anterior crossbite.

[0006] To solve the above problems, an innovative structural design is made by fully utilizing the structural characteristics of the invisible aligner, so that it can better adapt to the early treatment needs of the crossbite patients in the mixed dentition stage. By designing a treatment plan that can utilize the occlusal force, not only can the crossbite be corrected quickly and effectively, but also the patient's frequency of reexamination can be reduced, and the convenience and comfort of treatment can be improved. This innovative design is expected to solve the pain points of traditional aligners and existing invisible aligners in the treatment of crossbite in the mixed dentition stage, and provide an efficient, accurate and user-friendly correction tool for the field. SUMMARY

[0007] The present application aims to provide a segmented aligner for quickly correcting anterior crossbite, which adopts an interdental stress dispersion connection structure at a specific position on the labial or lingual side of the invisible aligner, realizes the lingual side thrust and labial side pull of the single tooth in the maxilla, the labial side thrust of the single tooth in the mandible and the lingual side pull of the mandible, expands the gap, and quickly corrects the anterior crossbite by utilizing the occlusal force.

[0008] To achieve the above-mentioned purpose, the present application is realized by adopting the following technical solutions:

[0009] The present application discloses a segmented aligner for quickly correcting anterior crossbite, which comprises an elastic part and a beveled part.

[0010] The elastic part comprises a crossbite tooth sleeve, other tooth row sleeves, and an elastic assembly. Two other tooth row sleeves are respectively arranged on both sides of the crossbite tooth sleeve. The crossbite tooth sleeve and the other tooth row sleeves are separately arranged. The elastic assembly is fixedly connected to both ends of the two other tooth row sleeves. The elastic assembly is fixedly connected to the middle part of the crossbite tooth sleeve. The elastic assembly can provide pressure or tension to the crossbite tooth sleeve.

[0011] The beveled part comprises a treatment base. An induction bevel is arranged on the top surface of the treatment base. The induction bevel is higher on the lingual side than on the labial side. The induction bevel is arranged corresponding to the crossbite tooth sleeve.

[0012] Preferably, the elastic assembly comprises a lingual side elastic assembly and a labial side elastic assembly. The lingual side elastic assembly is fixedly connected to the crossbite tooth sleeve and the other tooth row sleeve on the lingual side. The lingual side elastic assembly can provide pressure or tension to the crossbite tooth sleeve towards the lingual side. The labial side elastic assembly is fixedly connected to the crossbite tooth sleeve and the other tooth row sleeve on the labial side. The labial side elastic assembly can provide pressure or tension to the crossbite tooth sleeve towards the labial side.

[0013] Preferably, the crossbite tooth sleeve is a shell-shaped cavity wrapping a single crossbite tooth. The other tooth row sleeve is a shell-shaped cavity wrapping the lingual side and the buccal side of the complete tooth row.

[0014] Preferably, two or more crossbite tooth sleeves are arranged side by side. The adjacent crossbite tooth sleeves are connected by a connecting elastic rod.

[0015] Preferably, the crossbite mouthpiece is a shell-shaped cavity wrapping two or more crossbite teeth, and the other teeth mouthpiece is a shell-shaped cavity wrapping the lingual and buccal sides of the complete dentition.

[0016] Preferably, the treatment base is a shell-shaped cavity wrapping the lingual and buccal sides of the complete dentition.

[0017] Preferably, the top surface of the crossbite mouthpiece and the other teeth mouthpiece is higher than the top surface of the human tooth crown.

[0018] Preferably, the labial elastic component and the lingual elastic component are both arc-shaped rods with openings facing the crossbite mouthpiece.

[0019] Preferably, the treatment base is integrally provided with the guide slope.

[0020] The beneficial effects of the present application are as follows:

[0021] 1. The present application can improve the treatment efficiency and reduce the frequency of re-examination.

[0022] The present application can apply force to the labial and lingual sides of the teeth at the same time, and accelerate tooth movement with the assistance of elastic components. In addition, the present application is suitable for the mandible and is provided with a guide slope, which can utilize occlusal induction force to quickly correct anterior crossbite. Furthermore, due to the lack of space, individual anterior teeth may be labially inclined or lingually inclined, leading to the occurrence of anterior crossbite. The present application utilizes the specific force direction of the elastic component to quickly obtain a gap, thereby facilitating the rapid alignment of teeth.

[0023] 2. The present application can increase patient comfort.

[0024] The present application adopts a bracket-free invisible structure, which is transparent and comfortable. Traditional active appliances use a tongue spring to apply force on the lingual side, but the outer surface of the tongue spring is not wrapped, which can cause poor patient comfort. The present application wraps the teeth with a mouthpiece structure, which can provide higher patient comfort.

[0025] 3. The present application is based on biomechanical design and is relatively flexible.

[0026] The present treatment is based on biomechanical design. The main innovation is that the two elastic components work together to apply force on the labial and lingual sides at the same time, and can quickly expand the gap. By increasing the guide slope in the anterior region of the mandible, the occlusal force can be utilized to correct the crossbite of the patient.

[0027] 4. The present application can realize individualized design.

[0028] The causes of individual tooth crossbite include lingual inclination of the maxillary anterior teeth and labial inclination of the lower anterior teeth. The causes of individual tooth lingual inclination or labial inclination include abnormal position of a single tooth and tooth labial or lingual inclination due to insufficient interdental space. In view of the causes of different individual tooth crossbite, the present appliance is designed with individualized structure.

[0029] 5. When correcting severely misaligned teeth, the present invention generates a lingual pushing force and a labial pulling force on the misaligned teeth after placement due to the presence of the elastic connection structure. In addition, due to the presence of the elastic connection structure, the appliance generates a force to expand the gap after placement, which helps the reversed teeth to obtain space for tooth movement and achieve rapid movement. Furthermore, the part of the appliance body of the present invention that contacts the opposing tooth has an occlusal force induction slope. Through this slope, the reversed teeth can be corrected by using occlusal force, shortening the treatment correction time for individual reversed teeth. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a front view of the present invention;

[0032] Figure 3 This is a side view of the present invention;

[0033] Figure 4 This is a schematic diagram of the elastic part;

[0034] Figure 5 This is a schematic diagram of the beveled face.

[0035] Figure 6 This is a cross-sectional view of the induced inclined plane;

[0036] Figure 7 This is a schematic diagram of Example 1;

[0037] Figure 8 This is a schematic diagram of Example 2;

[0038] Figure 9 This is a schematic diagram of Example 3;

[0039] Figure 10 This is a schematic diagram of Example 4;

[0040] Figure 11 This is a schematic diagram of Example 5.

[0041] In the diagram: 1-Occlusal braces, 2-Occlusal braces for other dentitions, 3-Lingual elastic component, 4-Labial elastic component, 5-Guiding ramp, 6-Orthodontic base, 7-Elastic bar. Detailed Implementation

[0042] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings.

[0043] like Figures 1-6As shown, the present invention includes an elastic part and an oblique part; in actual use, if the reversed teeth are located in the maxilla, the elastic part is a maxillary appliance and the oblique part is a mandibular appliance; if the reversed teeth are located in the mandible, the elastic part is a mandibular appliance and the oblique part is a maxillary appliance.

[0044] The elastic part includes a reverse occlusal dental crown 1, other dental crowns 2, and an elastic component. The two other dental crowns 2 are respectively located on both sides of the reverse occlusal dental crown 1. The reverse occlusal dental crown 1 and the other dental crowns 2 are separated. The two ends of the elastic component are respectively fixedly connected to the two other dental crowns 2, and the middle part of the elastic component is fixedly connected to the reverse occlusal dental crown 1. The elastic component can provide pressure or tension to the reverse occlusal dental crown 1.

[0045] The inclined surface includes an orthodontic base 6, and the top surface of the orthodontic base 6 is provided with an induction inclined surface 5. The lingual side of the induction inclined surface 5 is higher than the labial side, and the induction inclined surface 5 is set to correspond to the overbite brace 1.

[0046] The elastic components include a lingual elastic component 3 and a labial elastic component 4. The two ends of the lingual elastic component 3 are fixedly connected to the lingual side of the crossbite brace 1 and the other dentition brace 2, respectively. The lingual elastic component 3 can provide pressure or tension towards the lingual side to the crossbite brace 1. The two ends of the labial elastic component 4 are fixedly connected to the labial side of the crossbite brace 1 and the other dentition brace 2, respectively. The labial elastic component 4 can provide pressure or tension towards the labial side to the crossbite brace 1.

[0047] The specific configuration of the crossbite brace 1 includes: 11 shell-shaped cavities that enclose a single crossbite tooth; 22 or more shell-shaped cavities that enclose a single crossbite tooth arranged side by side, with adjacent crossbite braces 1 connected by a connecting elastic rod 7; 3 crossbite braces 1 are shell-shaped cavities that enclose two or more crossbite teeth, and other dentition braces 2 are shell-shaped cavities that enclose the lingual and buccal sides of the complete dentition.

[0048] The orthodontic base 6 is a shell-like cavity that encloses the lingual and buccal sides of the complete dentition.

[0049] The top surfaces of the reverse occlusion brace 1 and the other dentition braces 2 are higher than the top surfaces of the human tooth crowns.

[0050] Both the labial elastic component 4 and the lingual elastic component 3 are arc-shaped rods with openings facing the overbite brace 1.

[0051] In this invention, the elastic component located on the labial side of the orthodontic appliance constitutes a rapid labial expansion gap and labial movement structure for the reverse teeth. After the elastic component is in place, it generates tensile or compressive deformation, thereby generating a labial expansion gap for a single tooth and a force pulling the tooth towards the labial side. The thickness and curvature of the elastic component can be improved in different cases.

[0052] The purpose of the guiding ramp 5 is to facilitate the movement of the reversed teeth along the ramp during occlusion, allowing the reversed teeth to gradually tilt under the action of occlusal force. In addition, the guiding ramp 5 fits closely with the reversed teeth, leaving a certain space on the lingual or labial side, which facilitates the lingual tilting of the reversed teeth under the action of occlusal force to correct the anterior crossbite.

[0053] Example 1 Figure 7 As shown, Figure a is a schematic diagram of the user's teeth, Figure b is a specific setting of the present invention, Figure c is a dental arch model of a reverse-occlusal tooth located in the maxilla, Figure d is a schematic diagram of the elastic part, and Figure e is a cross-sectional view at the guiding slope 5. The arrows in the figures indicate the corresponding movement trends or directions. The specific settings are as follows:

[0054] Specific condition: A single maxillary tooth is in reverse overbite, while the mandibular dentition is basically normal.

[0055] The maxillary orthodontic appliance setup includes: a single overbite appliance 1 covering the overbite tooth, other dentition appliances 2, and an elastic component. The elastic component provides labial traction, and the guiding ramp 5 generates labial guiding force for the maxillary lingual misaligned teeth.

[0056] Mandibular appliance setup: For the oblique face, an adaptive brace 1 for the oblique face is provided.

[0057] Working principle: The elastic component acts on the maxillary crossbite teeth, pulling them labially. At the same time, the guiding ramp 5 guides the maxillary crossbite teeth when the user is biting naturally, thus relieving the crossbite.

[0058] Example 2 Figure 8 As shown, Figure a is a schematic diagram of the user's teeth, Figure b is a specific setting of the present invention, Figure c is a dental arch model of a reverse-occlusal tooth located in the maxilla, Figure d is a schematic diagram of the elastic part, and Figure e is a cross-sectional view at the guiding slope 5. The arrows in the figures indicate the corresponding movement trends or directions. The specific settings are as follows:

[0059] Specific condition: Multiple teeth in the upper jaw occlusion (crossbite), mandibular dentition is basically normal.

[0060] The maxillary orthodontic appliance setup includes: 1, a set of braces covering two or more individual reverse-occlusal teeth; 2, other sets of braces for the dentition; and elastic components. The elastic components provide labial traction, and the guiding ramp 5 generates labial guiding force for the maxillary lingually misaligned teeth.

[0061] Mandibular appliance setup: For the oblique face, an adaptive brace 1 for the oblique face is provided.

[0062] Working principle: The elastic component acts on the maxillary crossbite teeth, pulling them labially. At the same time, the guiding ramp 5 guides the maxillary crossbite teeth when the user is biting naturally, thus relieving the crossbite.

[0063] Example 3 Figure 9As shown, Figure a is a schematic diagram of the user's teeth, Figure b is a specific setting of the present invention, Figure c is a dental arch model of a reverse-occlusal tooth located in the maxilla, Figure d is a schematic diagram of the elastic part, and Figure e is a cross-sectional view at the guiding slope 5. The arrows in the figures indicate the corresponding movement trends or directions. The specific settings are as follows:

[0064] Specific condition: A single maxillary tooth is in reverse occlusion with tooth rotation, while the mandibular dentition is basically normal.

[0065] The maxillary orthodontic appliance setup includes: a single crossbite bracket 1 covering the crossbite tooth, other dentition brackets 2, and elastic components. The elastic components are lingual elastic components 3 and labial elastic components 4 located on both sides of the crossbite bracket 1, providing labial traction and rotational forces. The guiding ramp 5 generates labial guiding forces for the maxillary lingual misaligned teeth.

[0066] Mandibular appliance setup: For the oblique face, an adaptive brace 1 for the oblique face is provided.

[0067] Working principle: The elastic component acts on the maxillary crossbite, pulling it labially and applying a torsional force. At the same time, the guiding ramp 5 guides the maxillary crossbite when the user is biting naturally, thus relieving the crossbite.

[0068] Example 4 Figure 10 As shown, Figure a is a schematic diagram of the user's teeth, Figure b is a specific setting of the present invention, Figure c is a dental arch model of a mandibular tooth with a reverse overbite, Figure d is a schematic diagram of the elastic part, and Figure e is a cross-sectional view at the guiding slope 5. The arrows in the figures indicate the corresponding movement trends or directions. The specific settings are as follows:

[0069] Specific condition: Mandibular single tooth crossbite, maxillary dentition basically normal.

[0070] The mandibular appliance setup includes: a single reverse-occlusal tooth bracket 1, other dentition brackets 2, and an elastic component. The elastic component provides labial traction, and the guiding ramp 5 generates lingual guiding force on the labially misaligned mandibular teeth.

[0071] Maxillary appliance placement: For the oblique face, an oblique face-fitting overbite appliance 1 is placed.

[0072] Working principle: The elastic component acts on the mandibular crossbite, pulling it towards the lingual side. At the same time, the guiding ramp 5 guides the mandibular crossbite when the user is biting naturally, thus relieving the crossbite.

[0073] Example 5 Figure 11 As shown, Figure a is a schematic diagram of the user's teeth, Figure b is a specific setting of the present invention, Figure c is a dental arch model of a reverse-occlusal tooth located in the maxilla, Figure d is a schematic diagram of the elastic part, and Figure e is a cross-sectional view at the guiding slope 5. The arrows in the figures indicate the corresponding movement trends or directions. The specific settings are as follows:

[0074] Specific condition: Labial misalignment of multiple mandibular teeth accompanied by scattered mandibular interdental spaces and reverse occlusion; maxillary dentition is basically normal.

[0075] The mandibular appliance setup includes two or more occlusal braces 1 placed side-by-side to enclose a single occlusal tooth. Adjacent occlusal braces 1 are connected by a connecting elastic bar 7. Other dentition braces 2 and elastic components are also included. The elastic components provide lingual traction, and the guiding ramp 5 generates lingual guiding force on the labially misaligned mandibular teeth.

[0076] Maxillary appliance placement: For the oblique face, an oblique face-fitting overbite appliance 1 is placed.

[0077] Working principle: The elastic component acts on the mandibular crossbite, pulling it towards the lingual side. At the same time, the guiding inclined plane 5 guides the mandibular crossbite when the user is biting naturally, thus relieving the crossbite. Meanwhile, the elastic rod 7 solves the problem of scattered gaps in the mandible.

[0078] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A segmented orthodontic appliance for rapid correction of anterior crossbite, characterized in that: Including the elastic part and the beveled part; The elastic part includes a reverse occlusal dental sleeve (1), other dental sleeves (2), and an elastic component. The two other dental sleeves (2) are respectively located on both sides of the reverse occlusal dental sleeve (1). The reverse occlusal dental sleeve (1) and the other dental sleeves (2) are set separately. The two ends of the elastic component are respectively fixedly connected to the two other dental sleeves (2), and the middle part of the elastic component is fixedly connected to the reverse occlusal dental sleeve (1). The elastic component can provide pressure or tension to the reverse occlusal dental sleeve (1). The inclined surface includes an orthodontic base (6), and the top surface of the orthodontic base (6) is provided with an induction inclined surface (5). The lingual side of the induction inclined surface (5) is higher than the labial side, and the induction inclined surface (5) is set in accordance with the crossbite brace (1).

2. The orthodontic appliance according to claim 1, characterized in that: The elastic components include a lingual elastic component (3) and a labial elastic component (4). The two ends of the lingual elastic component (3) are fixedly connected to the lingual side of the crossbite brace (1) and the other dentition brace (2). The lingual elastic component (3) can provide pressure or tension towards the lingual side to the crossbite brace (1). The two ends of the labial elastic component (4) are fixedly connected to the labial side of the crossbite brace (1) and the other dentition brace (2). The labial elastic component (4) can provide pressure or tension towards the labial side to the crossbite brace (1).

3. The orthodontic appliance according to claim 1, characterized in that: The crossbite brace (1) is a shell-shaped cavity that encloses a single crossbite tooth, while the other dentition braces (2) are shell-shaped cavities that enclose the lingual and buccal sides of the complete dentition.

4. The orthodontic appliance according to claim 3, characterized in that: Two or more reverse occlusal dental crowns (1) are arranged side by side, and adjacent reverse occlusal dental crowns (1) are connected by a connecting elastic rod (7).

5. The orthodontic appliance according to claim 1, characterized in that: The crossbite brace (1) is a shell-shaped cavity that encloses two or more crossbite teeth, while the other dentition braces (2) are shell-shaped cavities that enclose the lingual and buccal sides of the complete dentition.

6. The orthodontic appliance according to claim 1, characterized in that: The orthodontic base (6) is a shell-like cavity that encloses the lingual and buccal sides of the complete dentition.

7. The orthodontic appliance according to claim 1, characterized in that: The top surface of the crossbite brace (1) and the other dentition braces (2) is higher than the top surface of the human tooth crown.

8. The orthodontic appliance according to claim 1, characterized in that: Both the labial elastic component (4) and the lingual elastic component (3) are arc-shaped rods with openings facing the overbite brace (1).

9. The orthodontic appliance according to claim 1, characterized in that: The corrective base (6) and the guiding slope (5) are integrated.

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