Free draw hook for orthodontics

Abstract

The utility model discloses a free draw hook for orthodontics, which belongs to the technical field of orthodontics and comprises a sleeve and a draw hook fixed on the sleeve, and the sleeve is used for being sleeved on the original draw hook of a buccal tube. The device can be added in the mouth at any time and taken down after being used, has a better traction effect, and is beneficial to the development of clinical molar proximal movement.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of oral orthodontics, in particular to a free traction hook for orthodontics. Background Art

[0002] In orthodontic treatment, it is often the case that the first or second molar is missing and the second or third molar needs to be moved closer to close the gap. The most ideal way to move the molar closer is translation. In clinical practice, anchor pins are often used in conjunction with long molar traction hooks to provide a pulling force through the molar resistance center to achieve translation of the molar.

[0003] At present, there are several implementation methods of molar long traction hook in the prior art:

[0004] First, weld a separately bent wire traction hook on the ordinary buccal tube, and then fix the buccal tube on the molar;

[0005] Second, fix the finished buccal tube with a long traction hook on the molar;

[0006] 3. Straighten the traction hook (shorter) of the buccal tube on the molar to increase the length;

[0007] Fourth, use the free traction hook to fix the free traction hook on the archwire in the area where the molars are located.

[0008] Among them, the first two methods have the following problems: the buccal vestibule groove of molars (especially the third molars) is generally shallow. If a buccal tube with a long traction hook is used at the beginning of correction, it will often pierce the patient's vestibule groove mucosa to ulcers, etc., causing great pain to the patient; but if the buccal tube with a long traction hook is installed at a later stage when the molars begin to move proximally, the hard stainless steel wire may not be smoothly installed in the buccal tube, that is, it cannot be installed on the braces at any time. The third method has the following problems: ① The traction hook may break after bending; ② The buccal tube may fall off during the bending process in the mouth; ③ The length may still not reach the level of the molar impedance center after straightening; ④ The traction hook is difficult to reshape after straightening, and it is easy to fall off after hanging with a force-adding device such as a leather chain, that is, the use effect is not good. The fourth method has the following problems: since the buccal tube on the molar is used to fix the end of the archwire, the buccal tube is provided with a tube body for the end of the archwire to pass through, it is difficult to install a free traction hook on this part of the archwire. The existing free traction hook can only be installed on the archwire on the front side of the molar, resulting in the force application point not being at the molar impedance center, and the tension is transmitted to the archwire through the free traction hook, then to the buccal tube, and finally to the molar, and its traction effect is relatively poor. Therefore, a free traction hook for orthodontics that is convenient to add in the mouth at any time and remove after use and has a good traction effect is needed. Utility Model Content

[0009] The technical solution of the utility model aims at the technical problem that the existing technical solutions are too single, and provides a solution that is significantly different from the existing technologies. It mainly provides a free traction hook for orthodontics, which is used to solve the technical problems of the existing long traction hook for molars mentioned in the above background technology, such as the inability to add it in the mouth at any time and remove it after use, and the poor traction effect.

[0010] The technical solution adopted by the utility model to solve the above technical problems is:

[0011] A free traction hook for orthodontics comprises a sleeve and a traction hook fixed on the sleeve. The sleeve is used for sleeved on the original traction hook of the buccal tube.

[0012] Furthermore, one end surface of the sleeve is abutting surface for contacting the original traction hook of the buccal tube, and the opening side of the lower end of the traction hook faces the end side of the sleeve facing away from the abutting surface.

[0013] Furthermore, the traction hook is perpendicular to the length direction of the casing.

[0014] Furthermore, the diameter of the sleeve is 0.5 mm, the length is 2 mm, and the thickness of the tube wall is 0.2 mm; the length of the traction hook is 5 mm.

[0015] Furthermore, the traction hook is located at one end side of the sleeve.

[0016] Furthermore, a plane for contacting the buccal tube body is formed on one side of the sleeve.

[0017] Furthermore, one end surface of the sleeve is an abutment surface for abutting against the original traction hook of the buccal tube, and the upper and lower sides of the abutment surface are connected to limit strips, and the length of the limit strip is greater than the diameter of the original traction hook of the buccal tube.

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] (1) The utility model includes a sleeve that matches the original traction hook of the buccal tube and a traction hook fixed on the sleeve. When in use, the sleeve is directly put on the original traction hook of the buccal tube, and then clamped with a needle holder to complete the installation of the free traction hook on the braces; after use, the sleeve can be directly removed to remove the free traction hook. The utility model can be added in the mouth at any time and removed after use, which can avoid the problem of "using a buccal tube with a long traction hook at the beginning of correction, which often punctures the patient's vestibule mucosa and causes ulcers, etc.", and its installation and disassembly are relatively convenient and easy to implement. There is no problem caused by straightening the traction hook.

[0020] (2) The orthodontic free traction hook provided by the utility model is installed on the original traction hook of the buccal tube itself, and the force application point is located at the molar impedance center. After the traction force is transmitted to the buccal tube through the orthodontic free traction hook, it can be transmitted to the molar, and its traction effect is better.

[0021] In summary, the utility model can be added in the mouth at any time and removed after use, and has a good traction effect, which is conducive to the clinical implementation of molar mesial movement.

[0022] The present invention will be explained in detail below with reference to the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model in Example 1;

[0024] Figure 2 This is the front view of the utility model in embodiment 1;

[0025] Figure 3 It is a side view of the utility model in embodiment 1;

[0026] Figure 4 It is a side view of the utility model in embodiment 2;

[0027] Figure 5 It is the front view of the utility model in embodiment 3;

[0028] Figure 6 It is a schematic diagram of the present invention when used in Example 3, and the circle in the figure represents the part of the buccal tube itself where the original traction hook is connected to the buccal tube;

[0029] Description of reference numerals:

[0030] 1. Casing; 11. Abutment surface; 12. Plane; 2. Towing hook; 3. Limiting strip. DETAILED DESCRIPTION

[0031] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings, but the present invention can be implemented in different forms and is not limited to the embodiments described in the text. On the contrary, these embodiments are provided to make the content disclosed in the present invention more thorough and comprehensive.

[0032] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0033] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly connected by technicians in the technical field to which the present invention belongs. The terminology used in the specification of the present invention is for the purpose of describing specific embodiments and is not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0034] Example 1

[0035] Please refer to the attached Figure 1-3 A free traction hook for orthodontics comprises a sleeve 1 and a traction hook 2 fixed on the sleeve 1, wherein the sleeve 1 is used to be sleeved on the original traction hook of the buccal tube itself.

[0036] During use, in the later stage of correction, when the molars begin to move proximally, the sleeve 1 is directly put on the original traction hook of the buccal tube itself, and then clamped with a needle holder. After that, the traction hook 2 can be used to provide a pulling force through the molar impedance center to achieve the translation of the molar. And because the direction of the traction force is opposite to the direction of dislocation of the sleeve 1, the orthodontic free traction hook is not easy to fall off. After use, the sleeve 1 can be directly ground off and the orthodontic free traction hook can be removed from the original buccal tube. Compared with other buccal tubes with long traction hooks currently available in clinical practice, the orthodontic free traction hook is convenient to add in the mouth at any time and to be removed after use, which is conducive to the clinical development of molar mesialization.

[0037] Specifically, one end surface of the sleeve 1 is abutting surface 11 for contacting the original traction hook of the buccal tube. When in use, the abutting surface 11 of the sleeve 1 is first put on the original traction hook of the buccal tube. After the installation is completed, the abutting surface 11 contacts the original traction hook fixing part of the buccal tube. The opening side of the lower end of the traction hook 2 faces the end side of the sleeve 1 facing away from the abutting surface 11. This arrangement makes it easy to put the traction component on the traction hook 2 and prevent the traction component from accidentally loosening; and the traction hook 2 is not easy to pierce the gums or surrounding tissues.

[0038] Specifically, the traction hook 2 is perpendicular to the length direction of the casing 1 .

[0039] Specifically, the sleeve 1 has a diameter of 0.5 mm, a length of 2 mm, and a tube wall thickness of 0.2 mm, so as to match the original traction hook of the common buccal tube itself; the traction hook 2 has a length of 5 mm.

[0040] Specifically, the traction hook 2 is located at one end side of the sleeve 1. This arrangement facilitates the operation of clamping the sleeve 1 by the needle holder.

[0041] Example 2

[0042] The difference between this embodiment and embodiment 1 is that:

[0043] In this embodiment, please refer to the attached Figure 4 One side of the sleeve 1 is formed with a plane 12 for contacting the buccal tube body. When in use, the plane 12 contacts the buccal tube body, hindering the sleeve 1 from rotating around the original traction hook of the buccal tube itself, so that the position of the traction hook 2 can be unique and stable, effectively preventing the traction hook 2 from accidentally deflecting.

[0044] The rest is the same as in Example 1.

[0045] Example 3

[0046] The difference between this embodiment and embodiment 1 is that:

[0047] In this embodiment, please refer to the attached Figure 5 One end face of the sleeve 1 is abutting surface 11 for abutting against the original traction hook of the buccal tube. The upper and lower sides of the abutting surface 11 are connected to limit strips 3, and the length of the limit strips 3 is greater than the diameter of the original traction hook of the buccal tube.

[0048] When in use, after the sleeve 1 is put on the original traction hook of the buccal tube, the sleeve 1 is clamped with a needle holder, and the two limit strips 3 are clamped with the needle holder, so that the two limit strips 3 are covered on the part of the original traction hook of the buccal tube connecting the buccal tube, such as Figure 6 As shown, the utility model can achieve stable connection with the original traction hook of the buccal tube itself, effectively preventing the orthodontic free traction hook from accidentally detaching from the buccal tube traction hook.

[0049] The rest is the same as in Example 1.

[0050] The above description of the utility model in combination with the accompanying drawings is an exemplary description. Obviously, the specific implementation of the utility model is not limited to the above-mentioned method. As long as the non-substantial improvements are made by adopting the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A free traction hook for orthodontics, characterized in that: The invention comprises a sleeve (1) and a traction hook (2) fixed on the sleeve (1); the sleeve (1) is used for being sleeved on the original traction hook of the buccal tube.

2. The orthodontic free traction hook according to claim 1, characterized in that: One end surface of the sleeve (1) is a contact surface (11) for contacting the original traction hook of the buccal tube, and the opening side of the lower end of the traction hook (2) faces the end side of the sleeve (1) facing away from the contact surface (11).

3. The orthodontic free traction hook according to claim 1, characterized in that: The traction hook (2) is perpendicular to the length direction of the casing (1).

4. The orthodontic free traction hook according to claim 1, characterized in that: The sleeve (1) has a diameter of 0.5 mm, a length of 2 mm, and a tube wall thickness of 0.2 mm; the traction hook (2) has a length of 5 mm.

5. The orthodontic free traction hook according to claim 1, characterized in that: The traction hook (2) is located at one end side of the sleeve (1).

6. The orthodontic free traction hook according to claim 1, characterized in that: One side of the sleeve (1) is formed with a flat surface (12) for contacting the buccal tube body.

7. The orthodontic free traction hook according to claim 1, characterized in that: One end surface of the sleeve (1) is a contact surface (11) for contacting the original traction hook of the buccal tube. The upper and lower sides of the contact surface (11) are both connected to limit strips (3). The length of the limit strip (3) is greater than the diameter of the original traction hook of the buccal tube.

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