Maxillary molar pushing distal appliance

Abstract

The utility model relates to the technical field of oral medicine, and particularly discloses a maxillary molar pushing distal appliance which comprises a U-shaped palatal bar, planting nails and an elastic traction piece, orthodontic bands used for being tightly sleeved and fixed on a first molar are fixedly connected to the two ends of the U-shaped palatal bar, the two sides of the middle of the U-shaped palatal bar are respectively wound by a circle to form traction rings, and the two sides of the middle of the U-shaped palatal bar are fixedly connected with the planting nails. The two implanting nails are implanted and fixed to the two sides of the upper jaw respectively and located between the first molar and the second molar, one end of the elastic traction piece is connected with the implanting nails, and the other end of the elastic traction piece is connected with the traction ring. The appliance for pushing the maxillary molar towards the far middle is stable in installation and not easy to fall off, and meanwhile, the position of a stress application point can be adjusted as required in the installation process, so that the traction correction effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of oral medicine, in particular to a maxillary molar distalizing appliance. Background Art

[0002] In dental orthodontic treatment, the method of distalization of maxillary molars is often used to correct the distal relationship of molars and relieve crowding of maxillary dental arches, which can avoid the patient's maxillary molar extraction to a certain extent. For example, the invention patent with publication number CN 112451128A discloses a U-shaped palatal bar for invisible correction of patients with distalized molars. By combining the main body of the U-shaped palatal bar with the palatal implant, the traction force is more horizontal, without vertical and buccal-lingual components, and the correction force is close to the lingual side, which can avoid the common problem of buccal tilt of maxillary posterior teeth in invisible correction. At the same time, elastic traction rubber bands are used to fix and apply force, and the patient does not need to take it off by himself, which has high correction efficiency. However, the appliance is fixed by bonding with a small part of the lingual surface of the tooth through resin. The fixing structure is not stable enough and is prone to falling off. At the same time, the position of the traction hook on the main body of the U-shaped palatal bar is fixed and cannot be adjusted during the installation process, so the force application point cannot be adjusted. Summary of the Invention

[0003] The utility model aims to solve at least one of the technical problems mentioned above and provide a maxillary molar distalization appliance that is stable to install and not easy to fall off. At the same time, the position of the force point can be adjusted as needed during the installation process to improve the effect of traction correction.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a maxillary molar distalization appliance, including a U-shaped palatal rod, an implant screw and an elastic traction member, both ends of the U-shaped palatal rod are fixedly connected with an orthodontic band ring for tight fitting on the first molar, and the middle two sides of the U-shaped palatal rod are respectively wound into a circle to form a traction ring, and two implant screws are respectively implanted and fixed on both sides of the maxilla, and are both located between the first molar and the second molar. One end of the elastic traction member is connected to the implant screw, and the other end is connected to the traction ring.

[0005] Preferably, both ends of the U-shaped palatal rod are bent with omega curves between the traction ring and the orthodontic band ring.

[0006] Preferably, the orthodontic band is fixed to both ends of the U-shaped palatal rod by welding.

[0007] Preferably, the elastic traction member is a rubber band.

[0008] Preferably, the U-shaped palatal rod is formed by integrally bending a metal wire.

[0009] Preferably, the metal wire is stainless steel wire.

[0010] Preferably, the U-shaped palatal bar is wider than the dental arch.

[0011] The beneficial effect is: compared with the existing technology, the maxillary molar distalization appliance of the present invention is fixed by adopting an orthodontic band ring to embrace the teeth on all sides, with a large contact area, stable installation, and not easy to fall off during the force application process, which is beneficial to the overall posterior movement of the molar. At the same time, by adopting a traction ring formed by winding a circle of the U-shaped palatal rod itself, the position of the traction ring can be adjusted according to the traction needs before installation, thereby accurately controlling the force and direction applied to the teeth, realizing directional movement of the teeth, improving the treatment effect and controllability, and by implanting the implant nail between the first molar and the second molar with thicker bone, the safety and stability of the implant nail implantation are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following is a further detailed description of the specific embodiments of the present invention with reference to the accompanying drawings, wherein:

[0013] Figure 1 This is a schematic structural diagram of a maxillary molar distalization appliance according to the present invention;

[0014] Figure 2 Schematic diagram of the structure of the U-shaped palatal bar. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected" to another component, it may be directly connected to the other component or there may also be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a central component. When a component is referred to as being "set in the middle", it does not only mean being set in the exact middle position, but also means being within the range defined by the middle as long as both ends are not set. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0017] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0018] like Figure 1 and Figure 2 As shown, the present application discloses a maxillary molar distalization appliance, comprising a U-shaped palatal rod 1, an implant 2 and an elastic traction member 3. Both ends of the U-shaped palatal rod 1 are fixedly connected with an orthodontic band 4 for tight fitting on the first molar. It should be noted that the orthodontic band 4 used in the present application is an existing structure, so it will not be described in detail here. The two sides of the middle part of the U-shaped palatal rod 1 are respectively formed with traction rings 5 ​​by winding a circle, that is, the two traction rings 5 ​​are respectively located on both sides of the middle position of the U-shaped palatal rod 1. When installed, the two implants 2 are respectively implanted and fixed on both sides of the maxilla, and the two implants 2 are both located between the first molar and the second molar. In the present application, the elastic traction member 3 can be a rubber band, one end of the rubber band is connected to the implant 2, and the other end is connected to the traction ring 5, thereby providing traction during the molar correction process.

[0019] Compared with existing orthodontic devices, the maxillary molar distalization appliance of the present invention is fixed to the tooth on all sides by adopting an orthodontic band ring 4, which has a large contact area and stable installation. It is not easy to fall off during the force application process, which is beneficial to the overall posterior movement of the molar. At the same time, by adopting a traction ring 5 formed by winding a circle of the U-shaped palatal rod 1 itself, the position of the traction ring 5 can be adjusted according to the traction needs before installation, so as to accurately control the force and direction applied to the tooth, realize the directional movement of the tooth, improve the treatment effect and controllability, and by implanting the implant 2 between the first molar and the second molar with thicker bone, the safety and stability of the implant 2 are improved.

[0020] In one of the preferred embodiments of the present application, both ends of the U-shaped palatal rod 1 are located between the traction ring 5 and the orthodontic band ring 4 and are bent with omega curves 6. After the U-shaped palatal rod 1 is installed and fixed, the bending size and bending shape of the omega curve 6 can be adjusted to fine-tune the position of the traction ring 5, so as to achieve fine-tuning of the traction force size and direction, thereby achieving precise correction of teeth.

[0021] In the above embodiment, the U-shaped palatal rod 1 can be formed by integrally bending a metal wire. Specifically, it can be formed by integrally bending a stainless steel wire. The integrally bent structure has a simple structure and is easy to process. During the bending process, the U-shaped palatal rod 1 can be bent together to form the traction ring 5 and the omega curve 6, and during the installation process, it is also convenient to adjust the traction ring 5 and the omega curve 6.

[0022] In another preferred embodiment of the present application, the orthodontic band 4 is fixed to both ends of the U-shaped palatal rod 1 by welding, thereby improving the installation stability of the orthodontic band 4.

[0023] The width of the U-shaped palatal rod 1 in the present application can be adjusted according to the treatment situation. Generally, the width of the U-shaped palatal rod 1 matches the dental arch; in another embodiment of the present application, the width of the U-shaped palatal rod 1 is slightly wider than the dental arch, thereby being able to widen the dental arch and thereby improving the correction effect of molars.

[0024] The above embodiments are only used to illustrate the technical solution of the present invention and are not intended to limit the present invention. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention shall be included in the scope of the technical solution of the present invention.

Claims

1. A maxillary molar distalization appliance, characterized in that: The invention comprises a U-shaped palatal rod (1), an implant screw (2) and an elastic traction member (3), wherein both ends of the U-shaped palatal rod (1) are fixedly connected with an orthodontic band ring (4) for being tightly fixed on the first molar, and the middle two sides of the U-shaped palatal rod (1) are respectively wound to form a traction ring (5), and two implant screws (2) are respectively implanted and fixed on both sides of the maxilla and are both located between the first molar and the second molar, and one end of the elastic traction member (3) is connected to the implant screw (2), and the other end is connected to the traction ring (5).

2. The maxillary molar distalization appliance according to claim 1, characterized in that: Both ends of the U-shaped palatal rod (1) are located between the traction ring (5) and the orthodontic band ring (4) and are bent with omega curves (6).

3. The maxillary molar distalization appliance according to claim 1, characterized in that: The orthodontic band (4) is fixed to both ends of the U-shaped palatal rod (1) by welding.

4. The maxillary molar distalization appliance according to claim 1, characterized in that: The elastic traction member (3) is a rubber band.

5. The maxillary molar distalization appliance according to claim 4, characterized in that: The U-shaped palatal rod (1) is formed by integrally bending a metal wire.

6. The maxillary molar distalization appliance according to claim 5, characterized in that: The metal wire is stainless steel wire.

7. The maxillary molar distalization appliance according to claim 1, characterized in that: The U-shaped palatal bar (1) is wider than the dental arch.

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