Tooth adjacent surface cleaning device for people wearing orthodontic fixed appliance

By designing a tooth interproximal cleaning device suitable for orthodontic fixed appliances, the problem of existing dental floss being unable to pass through orthodontic fixed appliances has been solved, achieving effective cleaning of interproximal spaces. It is particularly convenient to operate in the posterior tooth area and is suitable for people of different ages.

CN121101784APending Publication Date: 2025-12-12DENTAL HOSPITAL AFFILIATED TO FUJIAN MEDICAL UNIV
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Patent Information

Application Number
CN202511302938.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-12
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

Existing dental floss is difficult to effectively pass through the obstruction of orthodontic fixed appliances, especially in the posterior teeth area, and cannot completely remove food debris and plaque in the interproximal spaces.

Method used

A tooth interproximal cleaning device has been designed, comprising a blunt-tipped conical guide and a thin thread-like body. The guide has an elastic layer and finger-like protrusions on its surface and is made of polypropylene. The body is made of multi-strand nylon thread or high-molecular-weight polyethylene thread. It is suitable for cleaning the interproximal surfaces of teeth in people with orthodontic fixed appliances.

Benefits of technology

This device can effectively pass through the obstacles of fixed orthodontic appliances, and is particularly easy to operate in the posterior teeth area. It can thoroughly remove food debris and plaque from the interdental spaces of teeth, is suitable for people of different ages, and does not damage the soft tissue of the gums.

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Abstract

The invention relates to the field of medical apparatus and instruments, in particular to a tooth adjacent surface cleaning device for people wearing orthodontic fixing appliance. The device comprises a guide part and a body part. The guide part is in a blunt conical shape and is formed by polypropylene in a one-time injection molding mode, the outer surface of the guide part is wrapped with an elastic layer made of thermoplastic elastomer, and a plurality of finger-shaped protrusions are arranged on the surface of the elastic layer. The body part is of a thin-line-shaped structure and is fixed to the tail end of the guiding part. The guide part has certain strength, can directly penetrate through the adjacent gap of the teeth and guide the body part to enter the adjacent gap, the body part is tightly attached to the adjacent face of the teeth on one side, soft dirt and bacterial plaque on the adjacent face of the teeth are removed through up-and-down scraping for multiple times, and cleaning of the adjacent face of the teeth is completed. The device is completely not affected by an orthodontic fixing appliance, the mode of entering the tooth adjacent gap is simple, tooth adjacent surface area cleaning can be effectively completed, meanwhile, the guiding part has certain flexibility, the device is convenient to use in a back tooth area, and cleaning of adjacent surfaces of multiple teeth can be completed.
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Description

Technical Field

[0001] This invention relates to the field of oral hygiene technology, and more specifically to a dental interproximal cleaning device for people wearing orthodontic fixed appliances. Background Technology

[0002] Currently available dental floss pullers, such as the commonly used GUM traction thread, are used to assist dental floss in passing through orthodontic archwires. The method of use involves tying regular dental floss to the loop at the end of the pull thread, and then guiding the floss through the archwire from behind. However, these pull threads are made of materials with low rigidity and are easily deformed, making them difficult to pass through the archwire in the posterior teeth region. Furthermore, tying the floss to the pull thread is cumbersome. In addition, after the pull thread passes behind the orthodontic archwire, both ends of the floss need to be wrapped around the fingers of both hands, and the floss needs to be guided through the interproximal contact area of ​​the teeth into the interdental spaces using the coordination of the fingers. Many patients, especially young or older patients, cannot complete this operation, particularly in the posterior teeth region where the space is narrow, making the operation even more difficult.

[0003] Another type of product, such as Oral-B orthodontic floss, which integrates the traction wire and floss, also has similar problems: some patients are unable to pass the floss through the interproximal contact area of ​​their teeth into the interdental spaces between adjacent teeth; the traction portion of this type of floss lacks rigidity and softens easily upon contact with saliva, making it difficult to pass behind the archwire, resulting in poor suitability for posterior teeth. Furthermore, the material of this floss is easily snagged by orthodontic ligatures, and the floss itself is relatively thick, making it difficult to pass through areas with closely spaced teeth, thus it is not suitable for patients with narrow interdental spaces.

[0004] Furthermore, Chinese Patent No. CN200880014307.X discloses a method and apparatus for assisting with dental floss in orthodontic treatment, specifically a floss pick for use by individuals wearing orthodontic brackets. Although one floss support end is relatively thin and can reach behind the orthodontic archwire, during use, due to the narrow space between the archwire and the tooth surface, the archwire and the floss support end interfere with each other, preventing the floss pick from reaching the bottom of the interdental spaces. The angle of use is also limited to the vertical direction. Moreover, the U-shaped support structure of the working end of the floss pick makes it difficult to use in crowded areas or posterior teeth where space is limited.

[0005] Furthermore, when using orthodontic elastics to pull or retract teeth, the use of dental floss becomes inconvenient because the space above the orthodontic archwire is occupied. Additionally, when the interdental spaces are large, dental floss alone cannot completely remove large pieces of food debris and plaque from these spaces. Summary of the Invention

[0006] The purpose of this invention is to provide a dental interproximal cleaning device for people wearing orthodontic fixed appliances, solving the problem that existing dental floss is inconvenient to use due to obstruction by orthodontic fixed appliances.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a dental interproximal cleaning device for people wearing orthodontic fixed appliances, comprising a guide part and a body part; The guide portion is a blunt-tipped cone shape, formed by one-time injection molding of polypropylene, and its outer surface is provided with an elastic layer; the surface of the elastic layer is provided with several finger-like protrusions; The finger-like protrusions are evenly distributed in a spiral shape along the axis of the guide portion from the rear end to the front end of the guide portion; the height of the finger-like protrusions gradually decreases as the diameter of the guide portion decreases. The body is a thin, thread-like structure, fixed to the end of the guide portion.

[0008] Furthermore, the elastic layer is an elastic layer made of thermoplastic elastomer material.

[0009] Furthermore, the angle between two adjacent finger-like protrusions is the same, which is 45°.

[0010] Furthermore, the body is made of multi-strand nylon thread or high molecular weight polyethylene thread, and has a length of 30cm.

[0011] Furthermore, the surface of the body is provided with a wax layer made of trace amounts of waxy material, and the wax layer is uniformly coated on the surface of the body.

[0012] Furthermore, the length of the guide portion is 2.5~3.0cm, and the maximum diameter of the rear end of the guide portion is less than 0.9mm.

[0013] Compared with the prior art, the present invention has the following beneficial effects: 1. The guide section has good strength and flexibility, allowing it to pass directly through the interdental spaces and guide the floss body into these spaces for cleaning the interdental surfaces. It is unaffected by orthodontic appliances such as archwires, brackets, and ligatures, and is easy to use. It can also be used by people not undergoing orthodontic treatment or those who are unsure how to use existing dental floss.

[0014] 2. The guide section has a certain degree of bending and deformation capability, making it convenient to operate in the narrow space of the posterior tooth area.

[0015] 3. The guide section has a certain degree of elasticity, which can clean the interdental spaces between teeth without damaging the soft tissue of the gums. The material of this device will not deform due to saliva, and it can clean multiple interdental spaces and proximal surfaces. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a cross-sectional view of the present invention; Figure 3This is a cross-sectional view of the guide section of the present invention. Figure 4 This is a front view of the invention in use; Figure 5 A top view showing the guide portion positioned in the interdental space between teeth; Figure 6 This is a top view of the body of the tooth located in the interdental space.

[0017] Label Explanation: 1. Guiding part; 2. Body; 3. Elastic layer; 4. Finger-like projections; 5. Teeth; 6. Orthodontic archwire; 7. Orthodontic brackets; 8. Interdental spaces. Detailed Implementation

[0018] To explain in detail the technical content, objectives, and effects of the present invention, the following description is provided in conjunction with the embodiments and accompanying drawings.

[0019] Please refer to Figures 1-6 As shown, the technical solution adopted by the present invention is: a dental interproximal cleaning device for people wearing orthodontic fixed appliances, comprising a guide part 1 and a body part 2; The guide part 1 is a blunt cone shape, which is made of polypropylene by one-time injection molding, and its outer surface is provided with an elastic layer 3; the surface of the elastic layer 3 is provided with several finger-shaped protrusions 4. The finger-like protrusions 4 are evenly distributed in a spiral shape along the axis of the guide portion 1 from the rear end to the front end of the guide portion 1; the height of the finger-like protrusions 4 gradually decreases as the diameter of the guide portion 1 decreases. The body part 2 is a thin thread-like structure and is fixed to the end of the guide part 1.

[0020] As described above, the guide part 1 is directly connected to the body part 2. The guide part 1 is made of polypropylene and has an elastic layer 3 on its surface. Therefore, it has good strength and flexibility and can directly enter the interdental space 8 for cleaning. It is not affected by orthodontic accessories such as orthodontic archwire 6, orthodontic bracket 7, and ligature wire. The method of use is simple and effective, and it has a certain bending and deformation ability. It is convenient to operate in the posterior tooth area and can clean multiple interdental surfaces. In addition, after the guide part 1 passes through the interdental space, it can directly guide the body part 2 into the interdental space 8. The body part 2 can fit closely to one side of the interdental surface in a "C" shape and scrape up and down several times to remove soft plaque and bacteria from the interdental surface. The guide part 1 and the body part 2 work together to clean the interdental space and interdental surface.

[0021] Preferably, the elastic layer 3 is an elastic layer made of thermoplastic elastomer material.

[0022] As can be seen from the above description, the above settings enable the elastic layer 3 to have excellent softness, elastic feel and high coefficient of friction.

[0023] Preferably, the angle between two adjacent finger-like protrusions 4 is the same, which is 45°.

[0024] As can be seen from the above description, the above settings make the finger-like protrusions 4 evenly distributed on the surface of the elastic layer 3. Since the finger-like protrusions 4 are distributed in a spiral shape, they can effectively remove food residue, plaque, etc. from the interdental spaces 8 of the teeth during use.

[0025] Preferably, the body 2 is made of multi-strand nylon thread or high molecular weight polyethylene thread and has a length of 30cm.

[0026] As described above, both materials are known for their high tensile strength, wear resistance, and fatigue resistance. The multi-strand braided structure further enhances toughness and fracture resistance, ensuring that they will not break under repeated tensile stress.

[0027] Preferably, the surface of the body 2 is provided with a wax layer made of a trace amount of wax material, and the wax layer is uniformly coated on the surface of the body 2.

[0028] As can be seen from the above description, the above settings effectively reduce the resistance of the body 2 during use and improve the comfort of using the body 2.

[0029] Preferably, the length of the guide portion 1 is 2.5~3.0cm, and the maximum diameter of the rear end of the guide portion 1 is less than 0.9mm.

[0030] As can be seen from the above description, various sizes of guide parts 1 are provided. The length of the guide parts 1 is 2.5, 2.7 and 3.0 cm, and the maximum diameter of the end is 0.5 mm, 0.7 and 0.9 mm. Users can choose the appropriate size according to the size of their teeth and the size of the interdental spaces 8.

[0031] The working principle of this invention is as follows: Select a guide part 1 of appropriate size according to the size of the interdental space 8; when using it, hold the end of the guide part 1 and insert the guide part 1 into the interdental space 8 below the orthodontic archwire 6. The guide end 1 can use the finger-like protrusions 4 to initially remove large pieces of food residue, soft plaque, etc. in the interdental space 8. After the guide part 1 has completely passed through the interdental space 8, the body part 2 enters the interdental space 8, and the guide part 1 returns to its original shape. Hold the guide part 1 and the rear part of the body part 2 firmly with both hands, and press the middle part of the body part 2 against the proximal surface of one tooth 5. At this point, the body part 2 forms a "C" shape. Scrape up and down several times to remove plaque and soft deposits from the proximal surface of tooth 5. After cleaning the interdental space 8 and the proximal surface of tooth 5, the body part 2 can be directly withdrawn or pulled towards the occlusal surface of the tooth, passing through the contact area of ​​the proximal surface of tooth 5 to further remove plaque and soft deposits in the contact area. Repeat the above steps to complete the cleaning of all interdental spaces 8 and proximal surfaces of the teeth.

[0032] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent modifications made based on the content of the present invention's specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A dental proximal cleaning device for people wearing orthodontic fixed appliances, comprising a guide portion and a body portion; characterized in that, The guide portion is a blunt-tipped cone shape, formed by one-time injection molding of polypropylene, and its outer surface is provided with an elastic layer; the surface of the elastic layer is provided with several finger-like protrusions; The finger-like protrusions are evenly distributed in a spiral shape along the axis of the guide portion from the rear end to the front end of the guide portion; the height of the finger-like protrusions gradually decreases as the diameter of the guide portion decreases. The body is a thin, thread-like structure, fixed to the end of the guide portion.

2. The interproximal cleaning device for people wearing orthodontic fixed appliances according to claim 1, characterized in that, The elastic layer is an elastic layer made of thermoplastic elastomer material.

3. A dental interproximal cleaning device for people wearing orthodontic fixed appliances according to claim 1, characterized in that, The angle between any two adjacent finger-like protrusions is the same, which is 45°.

4. A dental interproximal cleaning device for people wearing orthodontic fixed appliances according to claim 1, characterized in that, The body is made of multi-strand nylon or high-molecular-weight polyethylene yarn and is 30cm in length.

5. A dental interproximal cleaning device for people wearing orthodontic fixed appliances according to claim 1, characterized in that, The surface of the body is provided with a wax layer made of trace amounts of waxy material, and the wax layer is uniformly coated on the surface of the body.

6. A dental interproximal cleaning device for people wearing orthodontic fixed appliances according to claim 1, characterized in that, The length of the guide portion is 2.5~3.0cm, and the maximum diameter of the rear end of the guide portion is less than 0.9mm.

Citation Information

Patent Citations

  • Method and apparatus for orthodontic floss aid

    CN101820831A