CN213910615U - Rocking chair gradual change force wire and orthodontic assembly - Google Patents

Abstract

The application provides a rocking chair gradual change power silk and just abnormal subassembly relates to the medical equipment field. The rocking chair gradual change force wire comprises an arch wire bent into a rocking chair shape, wherein two ends of the arch wire are bent oppositely to form a first end of the rocking chair gradual change force wire together, the middle of the arch wire is bent to form a second end of the rocking chair gradual change force wire, the first end is used for being matched with molar teeth, and the second end is used for being matched with incisor teeth; the straightening force value of the arch wire is gradually reduced from the first end to the second end of the gradual force value wire of the rocking chair. The correction force value of the arch wire is gradually reduced from the first end to the second end, so that after the rocking chair gradual change force value wire is worn, the correction force received by each tooth from back to front is sequentially reduced, the mode that the correction force is gradually reduced accords with the actual demand of tooth correction, a better correction effect can be brought by only one arch wire, and the correction process is simplified. The orthodontic assembly that this application provided includes the gradual change force wire of above-mentioned rocking chair.

Description

Rocking chair gradual change force wire and orthodontic assembly

Technical Field

The application relates to the field of medical equipment, in particular to a rocking chair gradual change power wire and orthodontic assembly.

Background

With the development of medicine, orthodontic treatment of teeth is becoming more and more common. The main principle of orthodontic treatment is that orthodontic assemblies exert continuous light force on teeth, so that the teeth can be deflected towards a preset direction, and finally the teeth are adjusted to a desired position. The means for providing corrective force may be an archwire, a spring, or the like. The existing arch wire can only provide a correction force value, the arch wire with 2 or 3 different wire diameters is required to be replaced at least in order to balance the requirements of different correction force values of the front teeth (incisors) and the back teeth (molars) in the correction process, so that the wire replacement frequency and the re-diagnosis times are increased, and the correction process is complex.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a rocking chair gradual change power value silk and just abnormal subassembly, and it can provide reasonable correction power for preceding, back tooth by an arch wire, has reduced the use quantity of arch wire, has simplified and has rescued the process.

The embodiment of the application is realized as follows:

in a first aspect, an embodiment of the present application provides a rocking chair gradient force wire, including an arch wire bent into a rocking chair shape, two ends of the arch wire being bent in opposite directions to form a first end of the rocking chair gradient force wire together, a middle portion of the arch wire being bent to form a second end of the rocking chair gradient force wire, the first end being configured to be engaged with molar teeth, the second end being configured to be engaged with incisors; the straightening force value of the arch wire is gradually reduced from the first end to the second end of the gradual force value wire of the rocking chair.

In an alternative embodiment, the variation of the corrective force value of the archwire ranges from 50g to 500 g.

In an alternative embodiment, the archwire has a modulus of elasticity that decreases from the first end to the second end of the rocker progressive force wire.

In an alternative embodiment, the cross-sectional area of the archwire decreases progressively from the first end to the second end of the rocker progressive force wire.

In an alternative embodiment, the archwire is circular in cross-section.

In an alternative embodiment, the archwire is rectangular in cross-section.

In an alternative embodiment, the rocker chair progressive force wire is progressively warped from the first end to the second end of the rocker chair progressive force wire.

In an alternative embodiment, the archwire is of metal.

In alternative embodiments, the archwire material comprises nitinol, beta titanium alloy, or stainless steel.

In a second aspect, embodiments of the present application provide an orthodontic assembly including a rocking chair tapered wire of any one of the previous embodiments.

The beneficial effects of the embodiment of the application are that:

the rocking chair gradual change force wire provided by the embodiment of the application comprises an arch wire bent into a rocking chair shape, wherein two ends of the arch wire are bent oppositely to form a first end of the rocking chair gradual change force wire together, the middle of the arch wire is bent to form a second end of the rocking chair gradual change force wire, the first end is used for being matched with molar teeth, and the second end is used for being matched with incisor teeth; the straightening force value of the arch wire is gradually reduced from the first end to the second end of the gradual force value wire of the rocking chair. The orthodontic force value of the arch wire is gradually reduced from the first end to the second end, the molar can receive larger orthodontic force after the rocking chair gradual change force value wire is worn, the lateral incisors and incisors (incisors) receive orthodontic force which is reduced in sequence, the orthodontic force gradually reduces, the actual demand of tooth correction is met, only one arch wire can be used for providing reasonable correction force for all teeth on the upper jaw or the lower jaw, the use of the arch wire is reduced, the correction process is simplified, the wire changing frequency and the re-diagnosis times are reduced, and the damage of the correction force to periodontal ligament tissues is reduced.

The orthodontic assembly provided by the embodiment of the application comprises the rocking chair gradual force wire, so that the advantages are also achieved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.

FIG. 1 is a first perspective view of a progressive force wire of a rocking chair according to an embodiment of the present application;

fig. 2 is a second perspective view of a progressive force wire of the swing according to an embodiment of the present application.

The icon is 100-the gradual change force wire of the rocking chair; 101-a first end; 102-a second end; 110-arch wire.

Detailed Description

The existing orthodontic arch wire has consistent mechanical performance along the length direction, and the correction force provided by each part is consistent. Based on the inherent properties of the materials of existing orthodontic archwires, a practitioner can make numerous adjustments after applying an orthodontic archwire to a tooth to adapt the corrective force actually applied to the tooth to the actual needs of the tooth. Because the teeth at different positions before and after the treatment need different orthodontic forces, generally, a doctor needs a plurality of arch wires to correct the teeth at different positions. This results in lower efficiency of correction, increased frequency of filament changes and frequency of re-diagnosis, as well as increased damage to periodontal tissue.

In order to improve at least part of defects in the prior art, the embodiment of the application provides a rocking chair gradual change force wire, the shape of a tooth jaw is adapted through the arc shape of the rocking chair shape, and the physical performance of an arch wire at different positions is changed, so that the correction force value of the rocking chair gradual change force wire is gradual change, the correction force value is gradually increased from the position corresponding to an incisor to the position corresponding to a molar, the tooth correction requirement can be met by using fewer arch wires through the rocking chair gradual change force wire, the wire changing frequency and the frequency of re-diagnosis are reduced, and the correction process is simplified.

In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that the products of the present invention are conventionally placed in use, and are only used for convenience of describing the present application and simplifying the description, but do not indicate or imply that the devices or elements referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it is further noted that, unless expressly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Fig. 1 is a first perspective view of a progressive force wire 100 of a rocking chair according to an embodiment of the present application; fig. 2 is a second perspective view of a progressive force wire 100 of the rocking chair according to an embodiment of the present application. Referring to fig. 1 and 2, the rocking chair gradient force wire 100 provided in the embodiment of the present application includes an arch wire 110 bent into a rocking chair shape, two ends of the arch wire 110 are bent toward each other (approaching each other) to form a first end 101 of the rocking chair gradient force wire 100, and a middle portion of the arch wire 110 is bent to form a second end 102 of the rocking chair gradient force wire 100. The first end 101 is intended to cooperate with a molar and the second end 102 is intended to cooperate with an incisor. The orthodontic value of the archwire 110 gradually decreases from the first end 101 to the second end 102 of the rocker progressive force wire 100. As shown in fig. 1, a region a is a molar region corresponding to molar, a region B is a lateral incisor region corresponding to lateral incisors, and a region C is an incisor region corresponding to incisors. The incisor area, the lateral incisor area and the molar area correspond to the 3-3 tooth positions, the 4-5 tooth positions and the 6-7 tooth positions respectively.

Because the stability of the incisors is lower than the stability of the molars, the correction force value of the arch wire 110 is set to be gradual, so that the arch wire 110 at the position of the rocking chair gradual change force value wire 100 corresponding to the incisors has a lighter correction force value, the arch wire 110 corresponding to the molars has a larger correction force value, and the correction force value of the arch wire 110 corresponding to the lateral incisors is between the two. By the arrangement mode, the requirement of orthodontic treatment can be well met, and the actual correction force of the arch wire 110 can reach an expected value without excessively adjusting the arch wire 110 by a doctor. Therefore, the rocking chair gradual-change force wire 100 improves the correction efficiency, avoids using a plurality of arch wires for correction, reduces the wire changing frequency and the number of times of repeated diagnosis, and improves the correction effect.

In this embodiment, the rocker gradient force wire 100 is gradually buckled from the first end 101 to the second end 102 of the rocker gradient force wire 100, as shown in fig. 2. In fig. 1 and 2, H is the bow height dimension and H is the warp height. It should be understood that the first end 101 and the second end 102 in the embodiment of the present application refer to two opposite ends of the rocking chair gradient force wire 100 in the shape of the rocking chair, and two ends of the arch wire 110 refer to two ends in the extending direction of the arch wire 110, and the two ends of the arch wire 110 together form the first end 101 of the rocking chair gradient force wire 100.

In an alternative embodiment of the present application, the variation of the corrective force value of the archwire 110 ranges from 50g to 500 g. Optionally, at the first end 101 of the rocker chair gradient force wire 100, i.e., at the end of the archwire 110, the correction force value of the archwire 110 is 500 g; at the second end 102 of the rocker chair gradient force wire 100, i.e., the mid-curve of the archwire 110, the orthodontic force value of the archwire 110 is 50 g. The archwire 110 has a uniformly or non-uniformly graduated correction force value between the first end 101 and the second end 102 of the rocker progressive force wire 100.

It should be understood that the specific correction force values described above can be adjusted according to the actual correction needs.

In the embodiment of the present application, the orthodontic force value of the arch wire 110 can be regarded as an inherent property of the arch wire 110, and can be measured by a three-point bending test, specifically referring to a test method described in the industry standard "YY/T0625-2016 orthodontic wire".

Specifically, the modulus of elasticity of the archwire 110 can be gradually reduced from the first end 101 to the second end 102 of the rocker chair progressive force wire 100 by a material forming related process. From the perspective of the archwire 110, the modulus of elasticity is the lowest at the middle and the highest at the ends. The change in elastic modulus, which means the amount of ability of the archwire 110 to recover its original shape after deformation, is not easily deformed the greater the elastic modulus, and the greater the amount of actual corrective force provided by the same amount of deformation. By setting the modulus of elasticity of the arch wire 110 to be gradual, it is possible to make the correction force value of the arch wire 110 gradual change in the length direction thereof with the diameter of the arch wire 110 being uniform.

In addition to the method of tapering the modulus of elasticity of the archwire 110, the cross-sectional area of the archwire 110 can be configured to taper from the first end 101 to the second end 102 of the rocker progressive force wire 100. From the perspective of the archwire 110, the archwire 110 is thickest at both ends and thinnest in the middle. The thickness of the arch wire 110 is gradually changed, so that the arch wire 110 is gradually thinned from the first end 101 to the second end 102 of the rocking chair gradual force value wire 100, and the gradual change of the correction force value can be realized.

In alternative embodiments of the present application, the archwire 110 is circular or rectangular in cross-section.

In alternative embodiments of the present application, the archwire 110 is made of a metal, which may be selected from nitinol, beta-titanium alloy, or stainless steel.

In addition, the present embodiment also provides an orthodontic assembly (not shown) including the rocking chair gradient force wire 100 according to the present embodiment. Of course, the orthodontic assembly may also contain other components necessary for correction, such as brackets and the like.

In summary, the rocking chair gradual-change force wire 100 provided in the embodiment of the present application includes an arch wire 110 bent into a rocking chair shape, two ends of the arch wire 110 are bent towards each other to form a first end 101 of the rocking chair gradual-change force wire 100, a middle portion of the arch wire 110 is bent to form a second end 102 of the rocking chair gradual-change force wire 100, the first end 101 is used for being matched with molar teeth, and the second end 102 is used for being matched with incisor teeth; the orthodontic value of the archwire 110 gradually decreases from the first end 101 to the second end 102 of the rocker progressive force wire 100. The orthodontic force value of the arch wire 110 is gradually reduced from the first end 101 to the second end 102, so that after the rocking chair gradual-change force wire 100 is worn, molar teeth can receive large orthodontic force, lateral incisors and incisors (incisors) receive gradually reduced orthodontic force, and the mode that the orthodontic force is gradually reduced accords with the actual demand of tooth correction, reduces the use of the arch wire, simplifies the correction process, reduces the wire changing frequency and the number of times of re-diagnosis, and reduces the damage of the correction force to periodontal ligament tissues.

The orthodontic assembly provided by the embodiment of the application comprises the rocking chair progressive force wire 100, and therefore has the advantages.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims (10)

1. A rocking chair gradual change force wire is characterized by comprising an arch wire bent into a rocking chair shape, wherein two ends of the arch wire are bent oppositely to form a first end of the rocking chair gradual change force wire, the middle of the arch wire is bent to form a second end of the rocking chair gradual change force wire, the first end is used for being matched with molar teeth, and the second end is used for being matched with incisor teeth; the arch wire has a progressive force value that gradually decreases from the first end to the second end of the rocker.

2. The rocking chair gradient force wire of claim 1, wherein the range of variation of the corrective force value of the archwire is from 50g to 500 g.

3. The rocking chair gradient force wire of claim 1, wherein the archwire has a modulus of elasticity that gradually decreases from a first end to a second end of the rocking chair gradient force wire.

4. The rocking chair gradient force wire of claim 1, wherein the cross-sectional area of the archwire decreases progressively from the first end to the second end of the rocking chair gradient force wire.

5. The rocking chair gradient force wire of claim 1, wherein the cross-section of the archwire is circular.

6. The rocking chair gradient force wire of claim 1, wherein the cross-section of the archwire is rectangular.

7. A rocking chair gradient force wire as claimed in claim 1, wherein the rocking chair gradient force wire is progressively warped from the first end to the second end of the rocking chair gradient force wire.

8. The rocking chair gradient force wire of claim 1, wherein the wire is metal.

9. The rocking chair graded force wire of claim 8, wherein the archwire is comprised of a material selected from the group consisting of nitinol, beta titanium alloy, and stainless steel.

10. An orthodontic assembly comprising the rocking chair gradient wire of any one of claims 1-9.

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