CN220360465U

CN220360465U - Self-adaptive molar orthodontic band

Info

Publication number: CN220360465U
Application number: CN202320705733.XU
Authority: CN
Inventors: 赖奕潮; 李祖安; 马金龙; 邓浩镇
Original assignee: Guangzhou Riton Biomaterial Co Ltd
Current assignee: Guangzhou Riton Biomaterial Co Ltd
Priority date: 2023-03-31
Filing date: 2023-03-31
Publication date: 2024-01-19
Anticipated expiration: 2033-03-31

Abstract

The utility model discloses a self-adaptive molar orthodontic band, which comprises: a band-shaped ring, a fixing device and an elastic connecting piece. When the elastic connecting piece is connected with the two fixing devices at the same time, the elastic connecting piece generates elastic deformation to drive the banded ring to be tightly coated on the periphery of the molar crown, so that the fitting degree of the banded ring and the tooth surface is improved, the manufacturing error is compensated, the anchorage effect of the molar is more accurate, and the correction effect is improved. Meanwhile, the elastic connection enables the orthodontic band to be suitable for grinding teeth with different specifications and different surface forms, high fitting degree can be kept, multiple times of try-on is not needed for patients, and correction efficiency is improved; in addition, the high fitting degree also means that tooth separation treatment is not needed before the patient wears the orthodontic band, so that the pain of the patient is reduced.

Description

Self-adaptive molar orthodontic band

Technical Field

The utility model relates to the field of orthodontic treatment, in particular to a self-adaptive molar belt ring.

Background

In the orthodontic process, according to the type of the malocclusion of a patient, fixed correction systems such as a Hyrax correction device, a base-type Hass correction device and the like are often used, and an orthodontic band is an auxiliary fitting matched with the fixed correction devices. In general, orthodontic bands are metal collars that are placed over the patient's molars, a buccal tube is typically welded to the band, and the archwire of the appliance is passed through both the buccal tube and the bracket. The force application system is composed of the arch wire, the buccal tube on the belt ring and the bracket adhered on the tooth surface, and the molar is taken as the anchorage point, so that the correction force is transmitted, the force is applied to the teeth and the jaw relation is adjusted.

In the past, doctor need cooperate the orthodontic band of a plurality of models to try on for the patient, need make a round trip to iterate operation side many times and can select the orthodontic band that is fit for patient's molar size, and there is certain gradient in the size difference between every model yet, therefore the orthodontic band of selecting does not need to be fit with patient's molar shape completely.

Currently, there is also a method of manufacturing an orthodontic band using an oral scanner, determining the surface morphology of molars by oral scanning, and manufacturing a personalized orthodontic band according to the result. However, the current mouth sweeping precision is not high enough, the actual wearing effect of the personalized orthodontic band which is designed and manufactured is not good by considering the influence of manufacturing tolerance, the fitting degree of the orthodontic band and molar teeth is not enough, and the correction effect is influenced. Meanwhile, the orthodontic band pushes the gaps between adjacent teeth on two sides to become larger easily because of insufficient fitting degree, and more pain is brought to patients.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a self-adaptive molar orthodontic band which can solve the problem of poor fitting degree between the existing orthodontic band and molar.

The utility model is realized by the following technical scheme:

an adaptive molar orthodontic band comprising: a band-shaped ring, a fixing device and an elastic connecting piece; the band-shaped ring is of a metal band-shaped structure, and is suitable for being bent and surrounding the outer peripheral surface of the molar crown, so that two ends of the band-shaped ring form openings; at least one fixing device is fixedly arranged on the side surfaces of lips at two ends of the ribbon-shaped ring; the elastic parts of the elastic connecting piece are simultaneously fixed on the fixing devices at the two ends of the banded ring and have elastic potential energy, so that the banded ring is tightly covered on the outer peripheral surface of the molar crown.

Further, the fixing device is: the pin seat is provided with a pin hole; the elastic connecting piece is an elastic bolt which is simultaneously inserted into the pin holes of the two pin seats; the distance between the two tail ends of the elastic bolt is smaller than the distance between the two pin holes, so that the elastic bolt is in a deformation state in a connection state and drives the belt-shaped ring to generate clamping force on the molar teeth.

Further, the fixing device is: a traction buckle; the elastic connecting piece is a ligature wire or a rubber band, and the ligature wire or the rubber band is simultaneously bound on traction buckles at two ends of the banded ring, so that the ligature wire or the rubber band is in a deformation state in a binding state and drives the banded ring to generate clamping force on molar teeth.

Further, the elastic bolt is type structure of falling U, and it includes: the connecting part and the force arms arranged at the two ends of the connecting part; one end of the arm is fixedly connected to the connecting portion, and the other end of the arm extends obliquely along the central axis direction of the connecting portion, so that a conical opening is formed between the two ends of the arm.

Further, the traction buckle includes: a head and a body; the two ends of the body are respectively fixed on the lingual side of the head and the labial side of the banded ring; the outer diameter of the head part is larger than that of the body part so as to limit the ligature wire or the rubber band in the labial direction.

Further, the elastic bolt is made of nickel titanium.

Further, the lip side surface of the banded ring is also fixedly provided with: the bracket is used for being connected with the correction arch wire.

Further, the lip side surface of the banded ring is also fixedly provided with: and the buccal tube is used for being connected with the correction arch wire.

Further, the edge part of the band-shaped ring is of a smooth round corner structure.

Further, the edge part of the pin boss is of a smooth round corner structure.

Compared with the prior art, the utility model has the following beneficial effects: the band-shaped ring adopts a metal band structure, and is coated on the outer peripheral surface of the molar crown, so that openings are formed at two ends of the band-shaped ring. The two ends of the banded ring are provided with fixing devices, and the two fixing devices are connected by adopting an elastic connecting piece. When the elastic connecting piece is connected with the two fixing devices simultaneously, the elastic connecting piece generates elastic deformation, and the released reset force pulls the two fixing devices to approach oppositely, so that the banded ring is driven to be tightly coated on the periphery of the molar crown, the matched metal band has certain ductility, the fitting degree of the banded ring and the tooth surface is improved, the manufacturing error is compensated, the anchorage effect of the molar is more accurate, and the correction effect is improved. Meanwhile, the elastic connection enables the orthodontic band to be suitable for grinding teeth with different specifications and different surface forms, high fitting degree can be kept, multiple times of try-on is not needed for patients, and correction efficiency is improved; in addition, the high fitting degree also means that tooth separation treatment is not needed before the patient wears the orthodontic band, so that the pain of the patient is reduced.

Drawings

FIG. 1 is a schematic illustration of the wearing of the present utility model;

FIG. 2 is a schematic perspective view of the first embodiment in an assembled state;

FIG. 3 is a top view of the first embodiment in an assembled state;

FIG. 4 is a schematic diagram of a pin boss;

FIG. 5 is a schematic view of the structure of the elastic latch;

fig. 6 is a schematic perspective view of the second embodiment in an assembled state;

FIG. 7 is a top view of the second embodiment in an assembled state;

FIG. 8 is a schematic view of the structure of the towing buckle;

fig. 9 shows a schematic structure of the ligature.

In the figure: 10. a band-shaped ring; 20. a fixing device; 21. a pin base; 211. a pin hole; 22. a traction buckle; 221. a head; 222. a body; 30. an elastic connection member; 31. an elastic bolt; 311. a joint portion; 312. force arm; 32. ligature wire; 40. grinding teeth.

Detailed Description

The present utility model will be further described with reference to the accompanying drawings and detailed description, wherein it is to be understood that, on the premise of no conflict, the following embodiments or technical features may be arbitrarily combined to form new embodiments.

In the description of the present utility model, it should be understood that the terms "center," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The utility model discloses a self-adaptive molar orthodontic band which is used for being worn on molar 40 of a patient, wherein the orthodontic band, a bracket adhered to a tooth surface and an orthodontic archwire form a force application system together, and the molar 40 is taken as an anchorage point to apply an orthodontic force to teeth so as to achieve the effect of adjusting the jaw relation.

Referring to fig. 1, such an adaptive orthodontic band includes: a band 10, a securing device 20 and an elastic connection 30. The band 10 is a bendable metal band, and when worn, the band 10 surrounds the outer peripheral surface of the crown of the molar 40, forming a sized opening between the ends thereof. At least one fixing device 20 is provided on the lip side of the two ends of the band-shaped ring 10, and the fixing device 20 is used for connecting with the elastic connecting piece 30. The elastic parts of the elastic connection members 30 are simultaneously fixed to the fixing devices 20 at both ends. When the elastic connecting piece 30 is connected to the two fixing devices 20 at the same time, the elastic connecting piece 30 generates elastic deformation, and the released restoring force pulls the two fixing devices 20 to approach in opposite directions, so that the banded ring 10 is driven to be tightly wrapped on the periphery of the dental crown of the molar 40, and the matched metal band has certain ductility, so that the fitting degree of the banded ring 10 and the dental surface is improved, the manufacturing error is compensated, the anchorage effect of the molar 40 is more accurate, and the correction effect is improved. Meanwhile, the elastic connection enables the orthodontic band to be simultaneously suitable for the molar teeth 40 with different specifications and different surface forms, and can keep high fitting degree, multiple times of try-on is not needed for patients, and correction efficiency is improved; in addition, the high fitting degree also means that tooth separation treatment is not needed before the patient wears the orthodontic band, so that the pain of the patient is reduced.

The connection form of the fixing device 20 and the elastic connection member 30 may have the following two embodiments.

Embodiment one:

referring to fig. 2-4, the fixing device 20 adopts a pin seat 21 structure, and a pin hole 211 is formed on the pin seat 21. The elastic connecting piece 30 is made of an elastic bolt 31, and specifically, nickel-titanium materials are selected, and two ends of the elastic bolt 31 are respectively inserted into the pin holes 211 of the two pin seats 21. The distance between the two ends of the elastic bolt 31 is smaller than the distance between the two pin holes 211, so that the elastic bolt 31 is in an elastic deformation state after being inserted into the pin holes 211 and has elastic potential energy, and the released reset force can pull the openings at the two ends of the banded ring 10 to narrow, so that clamping force is generated on the molar teeth 40, and high fitting degree is achieved.

More specifically, referring to fig. 5, the elastic latch 31 has an inverted U-shaped structure, and includes a connecting portion 311 and arms 312 disposed at two ends of the connecting portion 311; one end of the arm 312 is fixedly connected to the connecting portion 311, and the other end extends obliquely along the central axis direction of the connecting portion 311, so that a tapered opening is formed between the ends of the two arms 312, that is, the opening of the elastic bolt 31 is in a gradually narrowing structure along the end direction. Thus, after the elastic plug 31 is smoothly inserted into the pin hole 211, the end opening is inevitably in an expanded state, so that the arm 312 has elastic potential energy.

Embodiment two: referring to fig. 6 to 9, the fixing device 20 employs a traction buckle 22, and the elastic connection member 30 employs a ligature wire 32 or a rubber band, the ligature wire 32 or the rubber band being simultaneously tied or hung on the traction buckle 22 at both ends of the band-shaped ring 10. When the ligature wire 32 or the rubber band is in the binding state, the elastic deformation state is adopted, and the released reset force pulls the openings at the two ends of the band-shaped ring 10 to be narrowed, so that clamping force is generated on the molar teeth 40, and high fitting degree is achieved.

More specifically, referring to fig. 8, the specific structure of the traction buckle 22 includes a head 221 and a body 222, and both ends of the body 222 are respectively fixed to the lingual side of the head 221 and the labial side of the band 10; the head 221 has an outer diameter greater than the outer diameter of the body 222 to form a labial limit for the ligature wire 32 or the rubber band so that the ligature wire 32 or the rubber band does not slip or fall off the traction clasp 22.

Depending on the particular patient, different fittings may be provided on the band 10 to cooperate with a fixed appliance, expander, or palate bar, among other appliance systems. The band-shaped ring 10 can be welded with a bracket which is used for being connected with an orthodontic wire; and a buccal tube can also be welded, and the buccal tube is used for being connected with an orthodontic archwire so as to form a force application system.

In order to reduce the risk of the band 10 scratching the oral cavity, the edge of the band 10 is rounded to form a smooth rounded structure. Similarly, when the band ring 10 is in a latch connection, the edge portion of the pin needs to be rounded to have a smooth rounded structure.

The band-shaped ring 10 is made of stainless steel.

The above embodiments are only preferred embodiments of the present utility model, and the scope of the present utility model is not limited thereto, but any insubstantial changes and substitutions made by those skilled in the art on the basis of the present utility model are intended to be within the scope of the present utility model as claimed.

Claims

1. An adaptive molar orthodontic band comprising: a band-shaped ring, a fixing device and an elastic connecting piece; the band-shaped ring is of a metal band-shaped structure, and is suitable for being bent and surrounding the outer peripheral surface of the molar crown, so that two ends of the band-shaped ring form openings; at least one fixing device is fixedly arranged on the side surfaces of lips at two ends of the ribbon-shaped ring; the elastic parts of the elastic connecting piece are simultaneously fixed on the fixing devices at the two ends of the banded ring and have elastic potential energy, so that the banded ring is tightly covered on the outer peripheral surface of the molar crown.

2. The adaptive molar orthodontic band of claim 1 wherein the securing means is: the pin seat is provided with a pin hole; the elastic connecting piece is an elastic bolt which is simultaneously inserted into the pin holes of the two pin seats; the distance between the two tail ends of the elastic bolt is smaller than the distance between the two pin holes, so that the elastic bolt is in a deformation state in a connection state and drives the belt-shaped ring to generate clamping force on the molar teeth.

3. The adaptive molar orthodontic band of claim 1 wherein the securing means is: a traction buckle; the elastic connecting piece is a ligature wire or a rubber band, and the ligature wire or the rubber band is simultaneously bound on traction buckles at two ends of the banded ring, so that the ligature wire or the rubber band is in a deformation state in a binding state and drives the banded ring to generate clamping force on molar teeth.

4. The adaptive molar orthodontic band of claim 2 wherein the resilient latch is of an inverted U-like configuration comprising: the connecting part and the force arms arranged at the two ends of the connecting part; one end of the arm is fixedly connected to the connecting portion, and the other end of the arm extends obliquely along the central axis direction of the connecting portion, so that a conical opening is formed between the two ends of the arm.

5. The adaptive molar orthodontic band of claim 3 wherein the traction clasp comprises: a head and a body; the two ends of the body are respectively fixed on the lingual side of the head and the labial side of the banded ring; the outer diameter of the head part is larger than that of the body part so as to limit the ligature wire or the rubber band in the labial direction.

6. The adaptive molar orthodontic band of claim 2 wherein the resilient latch is a nickel-titanium latch.

7. The adaptive molar orthodontic band of claim 1 wherein the labial side of the band is further fixedly provided with: the bracket is used for being connected with the correction arch wire.

8. The adaptive molar orthodontic band of claim 1 wherein the labial side of the band is further fixedly provided with: and the buccal tube is used for being connected with the correction arch wire.

9. The adaptive molar orthodontic band of claim 1 wherein the band edge portion is of a smoothly rounded configuration.

10. The adaptive molar orthodontic band of claim 2 wherein the edge portions of the pin bosses are smoothly rounded.