Detachable movable appliance for relieving positive locking caused by lingual inclination of double-side rear teeth
By designing removable orthodontic appliances, and utilizing buccal and lingual traction hooks combined with occlusal plates, secondary problems caused by traditional orthodontic methods are solved, achieving efficient and comfortable orthodontic results, suitable for patients with different growth patterns.
Patent Information
- Application Number
- CN202422863012.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-23
- Publication Date
- 2025-11-14
- Estimated Expiration
- 2034-11-23
AI Technical Summary
Traditional orthodontic treatment for bilateral lingual inclination of posterior teeth often causes elongation of upper and lower molars, deepening of overbite of anterior teeth, and excessive grinding of the second molars, which is particularly unfavorable for patients with average growth pattern and vertical growth pattern, resulting in insufficient comfort and effectiveness.
A removable orthodontic appliance was designed, which connects buccal and lingual traction hooks to the occlusal plate, combined with lingual wires and interproximal hooks, to relieve bilateral posterior teeth lingual tilting caused by orthodontic locking, avoiding secondary problems of traditional methods. A non-anatomical occlusal plate is used to improve stability and comfort.
It effectively opens the bite, prevents posterior tooth elongation, improves orthodontic efficiency, enhances appliance stability, improves comfort and oral hygiene, simplifies orthodontic procedures, and is suitable for patients with different growth patterns.
Smart Images

Figure CN223542006U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of orthodontic technology, specifically to a removable orthodontic appliance that relieves bilateral lingual tilt of the posterior teeth leading to orthodontic locking. Background Technology
[0002] Existing orthodontic techniques still have the following drawbacks in practical use:
[0003] For lingually inclined molars, the traditional approach is to move the upper and lower posterior teeth towards the buccal or palatal side using alternating traction to release the locking relationship and achieve normal occlusion. However, this method often causes many secondary problems, such as elongation of the upper and lower molars, deepening of the overbite of the anterior teeth, and excessive grinding of the second molars, often requiring adjustments to the occlusal curve and occlusal relationship. This is especially unfavorable for patients with average growth pattern and vertical growth pattern. There are also certain shortcomings in terms of comfort and effectiveness. Utility Model Content
[0004] The purpose of this invention is to provide a removable orthodontic appliance that relieves orthodontic lock caused by bilateral lingual tipping of the posterior teeth. This addresses the problem that traditional methods involve moving the upper and lower posterior teeth towards the buccal or palatal side using alternating traction to release the lock and achieve normal occlusion. However, such methods often cause numerous secondary problems, such as elongation of the upper and lower molars, deepening of the overbite of the anterior teeth, and excessive grinding of the second molars, often requiring adjustments to the occlusal curve and occlusal relationship. This is particularly disadvantageous for patients with average or vertical growth patterns. There are also certain shortcomings in terms of comfort and effectiveness.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock, comprising an occlusal plate and a lingual wire connecting the occlusal plate, wherein the lingual wire is connected to the lingual side of the mandibular anterior teeth, an interproximal hook is connected to one side of the occlusal plate, and a buccal traction hook and a lingual traction hook are connected to the side of the occlusal plate away from the lingual wire, wherein the buccal traction hook and the lingual traction hook are connected to both sides of the lingually tilted molars.
[0006] Furthermore, the occlusal plate is fixed to the bilateral premolar to molar area by interproximal hooks. The thickness of the occlusal plate is determined according to the degree of positive occlusion, with the basic thickness being the height required to open the occlusal knot. The two ends of the lingual wire are respectively fixed to the front side of the occlusal plate. The lingual wire is located on the lingual side of the mandibular anterior teeth and is used to connect the bilateral occlusal plates. It is usually made of stainless steel wire with a diameter of 1mm.
[0007] Furthermore, the interproximal hook extends from the buccal side of the occlusal plate and is fixed between two adjacent teeth, with one located between the first premolar and the second premolar, and one between the second premolar and the first molar.
[0008] Furthermore, the bottom of the adjacent hook is in the shape of an inner hook and is bent from a stainless steel wire with a diameter of 1mm.
[0009] Furthermore, the buccal traction hook and the lingual traction hook are respectively fixed on the buccal and lingual sides of the occlusal plate. The end of the buccal traction hook and the lingual traction hook away from the occlusal plate is set into a loop shape, which is made of stainless steel wire with a diameter of 1 mm and extends from the distal part of the occlusal plate along the cervical 1 / 3 of the lingual molar crown to the center of the crown.
[0010] Furthermore, the buccal traction hook is 4-5 mm away from the buccal side of the lingual molar, and the lingual traction hook is about 1 mm away from the lingual side of the lingual molar.
[0011] Furthermore, the occlusal plate is conventionally made of a resin matrix, and the lingual wire, interproximal hook, buccal traction hook, and lingual traction hook are all connected by the resin matrix.
[0012] Compared with the prior art, the removable orthodontic appliance provided by this utility model for relieving bilateral posterior tooth lingual tilt leading to orthodontic lock has the following beneficial effects:
[0013] This removable orthodontic appliance, designed to correct bilateral lingual tipping of the posterior teeth and prevent orthodontic locking, utilizes a non-anatomical occlusal plate fabricated from the premolars to the molars on both sides. Buccal and lingual traction hooks are connected to the distal buccal-lingual sides of the occlusal plate. This design opens the bite, preventing the upper and lower teeth from locking and affecting the orthodontic outcome. Furthermore, the buccal and lingual traction hooks verticalize the lingually tipped posterior teeth and prevent elongation of the posterior teeth, thus avoiding a range of problems. This removable appliance eliminates the need for cumbersome orthodontic methods, promotes oral hygiene, avoids the adverse effects of traditional appliances on teeth, and improves orthodontic comfort, making it more convenient and practical to use. Attached Figure Description
[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.
[0015] Figure 1 This is a first-view schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the overall structure of the present invention from a second perspective;
[0017] Figure 3 This is a schematic diagram of the overall structure of this utility model from a third-view perspective.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Lingual wire; 2. Occlusal plate; 3. Interproximal hook; 4. Buccal traction hook; 5. Lingual traction hook. Detailed Implementation
[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.
[0021] Please see Figure 1-3 A removable orthodontic appliance for relieving bilateral lingual inclination of posterior teeth leading to orthodontic lock, comprising an occlusal plate 2 and a lingual wire 1 connecting the occlusal plate 2. The lingual wire 1 is connected to the lingual side of the mandibular anterior teeth. An interproximal hook 3 is connected to one side of the occlusal plate 2. A buccal traction hook 4 and a lingual traction hook 5 are connected to the side of the occlusal plate 2 away from the lingual wire 1. The buccal traction hook 4 and the lingual traction hook 5 are connected to both sides of the lingually inclination molars.
[0022] The occlusal plate 2 is fixed to the bilateral premolar to molar region by the interproximal hooks 3. The thickness of the occlusal plate 2 is determined according to the degree of orthodontic lock, with the basic thickness being the height required to open the lock. The two ends of the lingual wire 1 are fixed to the front side of the occlusal plate 2. The lingual wire 1 is located on the lingual side of the mandibular anterior teeth and is used to connect the bilateral occlusal plates 2. It is usually made of stainless steel wire with a diameter of 1mm. On the one hand, it can open the bilateral posterior teeth occlusion and avoid the problem of low orthodontic efficiency due to posterior teeth occlusion lock when correcting orthodontic teeth, which greatly increases the practicality of the device. On the other hand, it can avoid the adverse effects of elongation of other molars and premolars. At the same time, the occlusal plate 2 can fix the lingual wire 1, interproximal hooks 3, buccal traction hooks 4 and lingual traction hooks 5, which can increase the stability of the device. Moreover, the occlusal plate 2 is non-anatomical.
[0023] Interproximal hooks 3 extend from the buccal side of the occlusal plate 2 and are fixed between two adjacent teeth, one between the first premolar and the second premolar, and one between the second premolar and the first molar. By connecting the interproximal hooks 3 to the occlusal plate 2, they can be fixed between two adjacent teeth, further securing the device.
[0024] The bottom of the interproximal hook 3 is in the shape of an inner hook, which is bent from a stainless steel wire with a diameter of 1mm. The inner hook at the bottom of the interproximal hook 3 can connect to the depth of the tooth gap, making the connection of the interproximal hook 3 more stable.
[0025] The buccal traction hook 4 and the lingual traction hook 5 are fixed to the buccal and lingual sides of the occlusal plate 2, respectively. The ends of the buccal traction hook 4 and the lingual traction hook 5 away from the occlusal plate 2 are made into a loop, which is made of stainless steel wire with a diameter of 1 mm and bent. It extends from the distal part of the occlusal plate 2 along the cervical 1 / 3 of the lingually inclined molar crown to the center of the crown. The buccal traction hook 4 and the lingual traction hook 5 connected to the occlusal plate 2 can abut against the two sides of the molar. When applying force to correct the inwardly lingually inclined molar, it is usually used in conjunction with the buccal tube bonded to the buccal side of the lingually inclined molar. The buccal traction hook 4 and the buccal tube are used to flex the molar vertically through elastic traction. When the molar is vertical, the problem of molar elongation often occurs. At this time, the buccal traction hook 4 and the lingual traction hook 5 are then crossed across the occlusal surface of the vertical molar to depress it. In this way, the structure is simple and easy to operate, avoiding the traditional orthodontic method and improving the comfort of the user.
[0026] The buccal traction hook 4 is 4-5mm away from the buccal side of the lingual molar, and the lingual traction hook 5 is about 1mm away from the lingual side of the lingual molar. This method is simple in structure and easy to operate, avoiding traditional orthodontic methods and improving the user's comfort.
[0027] The occlusal plate 2 is typically made of resin matrix, and the lingual wire 1, interproximal hook 3, buccal traction hook 4 and lingual traction hook 5 are all connected by resin matrix.
[0028] Working principle: When using, first adjust the angle of the interproximal hook 3 to fix the occlusal plate 2 to the mandibular bilateral premolar to molar area, ensuring that the lingual wire 1 is located on the lingual side of the mandibular anterior teeth. Then, adjust the position of the buccal traction hook 4 and the lingual traction hook 5 so that the distance between the buccal traction hook 4 and the buccal side of the lingual molar is 4-5mm, and the distance between the lingual traction hook 5 and the lingual side of the lingual molar is about 1mm. When applying force, it is usually used in conjunction with the buccal tube bonded to the buccal side of the lingual molar. The buccal traction hook 4 and the buccal tube are used to traction the molar vertically through elastic traction. When the molar is vertical, the problem of molar elongation often occurs. At this time, the buccal traction hook 4 and the lingual traction hook 5 are crossed across the occlusal surface of the vertical molar to depress it.
[0029] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.
Claims
1. A removable orthodontic appliance for relieving bilateral lingual tipping of posterior teeth leading to orthodontic lock-knee, characterized in that, It includes an occlusal plate (2) and a lingual wire (1) connecting the occlusal plate (2). The lingual wire (1) is connected to the lingual side of the mandibular anterior teeth. An interproximal hook (3) is connected to one side of the occlusal plate (2). A buccal traction hook (4) and a lingual traction hook (5) are connected to the side of the occlusal plate (2) away from the lingual wire (1). The buccal traction hook (4) and the lingual traction hook (5) are connected to both sides of the lingually inclined molar.
2. The removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock-up, as described in claim 1, is characterized in that... The occlusal plate (2) is fixed to the bilateral premolar to molar area by interproximal hooks (3). The thickness of the occlusal plate (2) is determined according to the degree of positive occlusion, with the basic thickness being the height required to open the occlusal knot. The two ends of the lingual wire (1) are respectively fixed to the front side of the occlusal plate (2). The lingual wire (1) is located on the lingual side of the mandibular anterior teeth and is used to connect the bilateral occlusal plates (2). It is usually made of stainless steel wire with a diameter of 1mm.
3. A removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock-up, as described in claim 1, is characterized in that... The interproximal hook (3) extends from the buccal side of the occlusal plate (2) and is fixed between two adjacent teeth, one between the first premolar and the second premolar, and one between the second premolar and the first molar.
4. A removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock-up, as described in claim 1, characterized in that, The bottom of the adjacent hook (3) is in the shape of an inner hook and is made of stainless steel wire with a diameter of 1 mm.
5. A removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock-up, as described in claim 1, characterized in that, The buccal traction hook (4) and the lingual traction hook (5) are respectively fixed on the buccal and lingual sides of the occlusal plate (2). The buccal traction hook (4) and the lingual traction hook (5) are arranged in a ring shape at the end away from the occlusal plate (2), and are made of stainless steel wire with a diameter of 1 mm. They extend from the distal part of the occlusal plate (2) along the cervical 1 / 3 of the lingual molar crown to the center of the crown.
6. A removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock-up, as described in claim 1, characterized in that... The buccal traction hook (4) is 4-5 mm away from the buccal side of the lingual molar, and the lingual traction hook (5) is about 1 mm away from the lingual side of the lingual molar.
7. A removable orthodontic appliance for relieving bilateral lingual tilt of posterior teeth leading to orthodontic lock-up, as described in claim 1, characterized in that, The occlusal plate (2) is conventionally made of resin matrix, and the lingual wire (1), interproximal hook (3), buccal traction hook (4) and lingual traction hook (5) are all connected by resin matrix.