CN219963131U - A tooth-picking device - Google Patents

Abstract

A tooth-picking device, which belongs to the technical field of dental cleaning devices. A plurality of dental floss sticks are provided on a bracket, and the opening end of each dental floss stick is provided with a linear cleaning part. The dental floss sticks are fixed or set on the bracket by adjusting a fixing device. There is a vibration motor in the handle, and the floss picks can be fixed on the bracket or the number and position of the floss picks can be flexibly set. It can be customized by 3D printing. The vibration motor in the handle may improve the effect of cleaning the gaps between teeth. It is easy to use and has a novel structure. Low cost, practical and economical.

Description

A tooth-picking device

Technical field

The utility model belongs to the technical field of dental cleaning devices, and particularly relates to a tooth picking device.

Background technique

Through correct and effective brushing, only about 70% of the dental plaque on the tooth surface can be removed. 30% of the dental plaque is hidden on the adjacent surfaces of the teeth and between the teeth. The bristles of the toothbrush cannot reach the adjacent surfaces. If the adjacent surfaces of teeth and interdental spaces are not cleaned thoroughly, plaque will form on the surfaces of teeth and tooth roots. The acids and other harmful substances produced by dental plaque will cause dental caries, gingivitis, and even periodontal disease on the adjacent surfaces of teeth. Causes bad breath. To remove plaque from adjacent surfaces, special tools such as dental floss must be used.

Humans have 20 deciduous teeth when they are 2.5-6 years old, and there are 28-32 permanent teeth in the adult mouth. The current commercial dental floss picks can only clean the interproximal space between two teeth. Using a separate dental floss pick to pick each tooth is time-consuming and labor-intensive. A total of 28 teeth need to be flossed 30 times to clear the adjacent spaces of all teeth. Clean the surface and adjacent spaces. The distal surface of the last molar (the surface away from the midline of the face) is often ignored when flossing, which can easily lead to dental caries and even pulpitis and apical periodontitis. The current commercialized single floss stick is shown in Figure 1. However, after people brush their teeth every morning and evening, they still have to spend a certain amount of time flossing their teeth, which is difficult to persist for a long time. Many people do not have the knowledge and habit of flossing their teeth and use dental floss to floss their teeth. There are certain methods and techniques, which require a learning process; in our country, the incidence of dental caries in children is increasing. However, children lack self-discipline and patience, and it is difficult for them to develop the habit of flossing their teeth, and it is difficult to insist on cleaning all adjacent teeth every day. The incidence rate of dental caries among people aged 35-44 years old in my country is 89%, and the incidence rate of dental caries among people aged 55-64 years old is 95.6%. Among people over 30 years old in China, the incidence of periodontal disease is as high as 90%. Flossing and removing plaque is an effective means of preventing proximal caries and periodontal disease. Therefore, a simple and easy-to-operate flossing device that can floss multiple teeth at the same time is needed.

Personalized designed tooth-picking devices make tooth-picking easy and save time and effort. It can encourage people, especially children, to actively use tooth-picking devices to pick teeth. It also greatly reduces the intensity and difficulty of oral care for the elderly with dementia and disability. . Apply fluoride-containing substances or desensitizing substances on the dental floss before flossing, or the floss itself contains fluoride substances or desensitizing substances. In this way, while flossing, the adjacent surfaces of the teeth can be treated with caries prevention or desensitization. It can also contain fluoride-containing substances and desensitizing substances at the same time. It can prevent caries and desensitize the adjacent teeth while flossing, reduce the incidence of adjacent dental caries and tooth sensitivity, and prevent the occurrence of dental caries and periodontal disease. , prevent and treat dentin hypersensitivity. Users can go to a nearby community hospital or dental clinic to scan the oral cavity or take an impression. Based on the 3D image of the user's oral cavity scan, a computer program is used to design a personalized tooth extraction device, which is then 3D printed or assembled to complete the tooth extraction device. The user can use it for a period of time. Finally, if the device needs to be adjusted, the user or dental assistant can manually adjust the flossing device and replace the floss stick based on the plaster model after the user took the impression or the 3D printed model after the oral scan; the computer can manually adjust the flossing device and replace the floss stick based on the two oral scans before and after. image, design an adjustment plan, and control the robotic arm to accurately adjust and/or replace the floss stick of the flossing device. Artificial intelligence robots can use personalized tooth-picking devices to provide oral care to the elderly, disabled people, children and other users with dementia.

Utility model content

In order to solve the deficiencies in the prior art, the utility model provides a tooth-picking device. The dental floss pick can be designed according to the arrangement and shape of the teeth in the user's oral cavity, and is flexible and convenient, and has high cleaning efficiency.

The utility model adopts the following technical solutions.

A tooth-picking device includes a bracket, a handle and a plurality of dental floss sticks. A plurality of the dental floss sticks are provided on the bracket, and the open end of each of the dental floss sticks is provided with a linear cleaning part;

The handle is provided on the bracket, and a vibration motor is provided in the handle.

Further, the linear cleaning part is dental floss or a brush.

Further, the bracket has a U-shaped structure.

Further, the handle is arranged in the middle position of the bracket.

Further, the dental floss stick is arranged on the bracket by adjusting the fixing device.

Further, the adjustment and fixing device includes a plurality of closed end openings of the dental floss stick, a plurality of bracket holes and a plurality of screws;

The internal link method of adjusting the fixing device is that the screw penetrates the opening of the closed end of the dental floss pick from the bracket hole, and the screw is threadedly connected to the nut located inside the closed end of the dental floss pick. The diameter of the bracket hole and the stem of the screw are the same, and the dental floss pick is closed. The end opening also mates with the shank of the screw for clearance;

Or the screw is inserted into the bracket hole from the hole in the closed end of the dental floss pick, and the screw is threadedly connected to the bracket hole; the stem of the screw fits with the hole in the closed end of the dental floss pick;

Or the screw is inserted into the bracket hole from the opening at the closed end of the dental floss stick, and the screw is threadedly connected to the nut on the outside of the bracket; the stem of the screw fits with the opening at the closed end of the dental floss stick with a clearance.

Further, the adjustment and fixing device also includes a bracket retainer, a dental floss stick magnet and a bracket magnet;

An integrated flat plate-shaped stent retainer is provided around the stent hole, a dental floss stick magnet is provided at the closed end of the dental floss stick, and a stent magnet is provided at the stent retainer.

Further, the length direction of the opening at the closed end of the dental floss stick is arranged along the mesial and distal directions of the teeth.

Further, the handle is provided with a magnetic screwdriver.

Furthermore, the tooth-picking device may be of an integral structure, with the number of floss sticks corresponding to the number of gaps between teeth; or it may be divided into multiple parts, with the number and position of the floss sticks individually set, and the multi-part tooth-picking device may be used in conjunction.

Overall solution: make models or scan teeth, create 3D tooth models, 3D print or cast personalized arch brackets.

When floss is used regularly, it will wear out, and the floss pick will need to be replaced when it wears out.

The floss stick is fixed with screws. If the floss is worn, the floss stick can be replaced regularly, or the position of the floss stick can be adjusted from time to time. The floss stick can be replaced regularly. Except for minors, the bracket basically does not need to be replaced for life. Different models of floss picks are commercially available at very low cost, making them economical.

1. For people with active alveolar bone reconstruction, periodontal disease, and people with moderate orthodontic treatment: the position of the teeth can change in three directions, and the dental floss stick needs to be adjusted to the mesial, distal, buccal, and lingual sides. For people with periodontal disease, the position of the gums continues to decline, and the position reached when flossing also changes with the position of the gums, that is, the distance (c) from the crown to the gums will change, so the arch of the floss stick needs to be adjusted. The height is the longitudinal length height (b).

Solution to changes in the longitudinal length of dental floss picks: Design dental floss picks with different longitudinal lengths (b) according to periodontal diseased teeth. You can design several commercial floss picks with dental floss, or 3D printed dental floss picks.

Solutions for rotating and moving floss picks in a horizontal plane:

Solution (1) The closed end of the dental floss pick adopts a circular opening, and the position of the dental floss pick can be rotated and moved in the horizontal plane.

Solution (2): 3D print floss picks and change the shape of the open end of the floss picks.

The two arms of the dental floss pick are configured so that when the teeth are twisted and displaced, the two arms are twisted outwards respectively.

The two arms of the dental floss pick are configured so that when the teeth are labially displaced, one side arm of the dental floss pick expands labially and the other side arm retracts lingually. When teeth shift lingually, one arm of the floss pick expands lingually and the other arm retracts labially.

2. For people with inactive alveolar bone reconstruction, the teeth only move mesially (or distally) (mostly mesially), the solution is: use an oblong opening at the closed end of the dental floss stick.

The beneficial effect of the utility model is that, compared with the existing technology, the utility model can pick half a mouth of teeth at the same time or can flexibly set the number of remaining upper and lower teeth in a personalized tooth-picking device. The position of the dental floss stick is fixed, and the entire tooth-picking device It is an integrated, disposable general-purpose tooth-picking device and a reusable advanced tooth-picking device with adjustable position. The vibration motor can improve the effect of cleaning the gaps between teeth. The number of floss picks can be set flexibly. It is easy to use and has a novel structure. Low cost and economical to use.

Description of the drawings

Figure 1 shows a dental floss stick in the prior art;

Figure 2 is the structure of the disposable tooth-picking device in Embodiment 1 (no missing teeth);

Figure 3 is a schematic diagram of the overall structure of the tooth extraction device in Embodiment 2 (no missing teeth);

Figure 4 is the structure of the tooth extraction device in Embodiment 2 (missing teeth);

Figure 5 is a partial exploded view of the first case of Embodiment 2;

Figure 6 is a combined structure diagram of the first case of Embodiment 2;

Figure 7 is a cross-sectional view along line A-A in Figure 6;

Figure 8 is a structural schematic diagram of the moving position of the dental floss stick in the first case of Embodiment 2 (set away from the center of the circle);

Figure 9 is a cross-sectional view along line B-B in Figure 8;

Figure 10 is a schematic structural diagram of the second case of Embodiment 2;

Figure 11 is a partially exploded view of the third case of Embodiment 2;

Figure 12 is a schematic diagram of teeth twisting and labial displacement;

Figure 13 shows the shape of the floss stick after the teeth are twisted;

Figure 14 shows the shape of the dental floss stick after the teeth are labially displaced;

Figure 15 is a schematic structural diagram of the closed end opening of the dental floss stick being an elongated hole in Embodiment 3;

Figure 16 is a schematic diagram of the personalized design size and structure of healthy teeth and teeth with periodontal disease;

Figure 17 is a schematic diagram of the floss setting position of the flossing device for the deciduous teeth of a 5-year-old child;

Figure 18 is a schematic diagram of the maxillary floss setting position for adults;

Figure 19 is a schematic diagram of the setting position of mandibular dental floss for adults;

1-Bracket; 2-Handle; 3-Dental floss stick; 4-Linear cleaning part; 5-Opening hole at the closed end of the dental floss stick; 6-Bracket hole; 7-Screw; 8-Bracket retainer; 9-Nut; 10-vibration motor; 11-proximal gap; 12-gingiva; 13-screwdriver; 14-dental floss magnet; 15-bracket magnet; 16-proximal surface; 17-marking line in the center of the handle.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model. The embodiments described in this application are only part of the embodiments of the present invention, rather than all embodiments. Based on the spirit of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

Example 1

The tooth-picking device has a bracket 1 and a plurality of dental floss picks 3.

A plurality of dental floss picks 3 are provided on the bracket 1. The closed end of the dental floss pick 3 is fixed on the bracket 1. The open end (arch-shaped opening) of each dental floss pick 3 is provided with a linear cleaning part 4. The two arms of the dental floss pick 3 are on the same plane (universal type).

When the linear cleaning part 4 is configured as dental floss, a plurality of dental floss sticks 3 are arranged on the bracket 1 in the same direction.

The bracket 1 can be U-shaped (15 dental floss sticks 3), or it can be set according to the actual situation of missing teeth (for example, the elderly are missing teeth and set according to the actual tooth position).

The dental floss pick 3 is fixed on the bracket 1 and its position cannot be moved.

When the gap between teeth is large, the linear cleaning part 4 can be a brush.

The dental floss pick 3 is integrally installed on the U-shaped bracket 1, and finally the handle 2 is installed at the center position.

The bracket 1, the handle 2, the dental floss stick 3 and the linear cleaning part 4 are all made of medical materials.

The overall structure is shown in Figures 2 and 3.

A rechargeable battery and a vibration motor 10 can be installed in the handle 2, and the switch is located on the surface of the handle 2. When the vibration motor 10 is turned on, the linear cleaning part 4 vibrates slightly, which can improve the effect of cleaning the interdental space and facilitate the application of fluoride or desensitization on the adjacent surfaces.

This solution requires making a model of the maxillary and mandibular dentition or direct oral scanning to obtain a 3D model of the teeth, and then print or cast a flossing device based on the 3D model. Its characteristics are: there is no need to set up a floss adjustment device, and the floss can be adjusted according to the wear of the floss. , periodontal disease, gum recession and other conditions, the tooth-picking device is not regularly replaced, and the processing cost of making a disposable tooth-picking device is relatively high.

Example 2

The dental floss pick 3 described in Embodiment 1 is arranged on the bracket 1 by adjusting the fixing device.

The adjusting and fixing device includes a plurality of openings 5 in the closed end of the dental floss pick, a plurality of bracket holes 6 and a plurality of screws 7 .

The first situation: As shown in Figures 5, 6, and 7, the closed end of the dental floss pick 3 is provided with a hole 5 (a circular light hole, without threads) at the closed end of the dental floss pick, and the bracket 1 is provided with a bracket hole 6 ( Circular light hole, no thread), the screw 7 penetrates into the opening 5 of the closed end of the dental floss pick from the bracket hole 6, and the screw 7 is threadedly connected to the nut 9 located inside the closed end of the dental floss pick 3. That is, the nut 9 is close to the tooth side.

The edge of the screw cap and the nut 9 clamp and fix the bracket 1 and the dental floss pick 3 together.

The diameter of the opening 5 at the closed end of the dental floss stick is larger than the diameter of the shank of the screw 7, and the diameter of the bracket hole 6 is equal to the diameter of the shank of the screw 7. The opening 5 at the closed end of the dental floss stick and the bracket hole 6 can also be of other shapes. , it is necessary to achieve that the area of the opening 5 at the closed end of the dental floss pick is larger than the area of the shank of the screw 7 , that is, the opening 5 at the closed end of the dental floss pick has a clearance fit with the shank of the screw 7 .

Furthermore, for stable fixation, an integrated flat-plate bracket retainer 8 is provided around the bracket hole 6 .

Further, in order to prevent the screw 7 and the nut 9 from falling into the oral cavity, the screw 7 and the nut 9 are set to contain iron, a dental floss stick magnet 14 is set at the closed end of the dental floss stick, and a bracket magnet is set at the bracket retainer 8 15. The dental floss bar magnet 14 and the bracket magnet 15 can attract each other, can attract the screw 7 and the nut 9, and also facilitate the installation of the screw 7 and the nut 9.

The contact surfaces of the edge of the screw cap, the bracket 1, the floss pick 3 and the nut 9 all need to have a certain degree of roughness and friction to play a fixing role.

For people with periodontal disease, children, people undergoing orthodontic treatment, or people with active alveolar bone reconstruction: the closed end of the dental floss pick 3 adopts the opening 5 (round opening) at the closed end of the dental floss pick, and the dental floss pick Position 3 can be rotated and moved arbitrarily on the horizontal plane within the range of the circular opening, and is then fixed by screws 7.

Taking periodontal disease as an example, when the teeth are twisted and the labial (buccal) side or the lingual side is displaced, how to adjust the position of the dental floss stick 3.

As shown in Figure 12: In the case of periodontal disease, the teeth are mesially twisted and slightly displaced labially. The dotted line represents the position of the teeth before movement, and the solid line represents the position of the teeth after movement.

Option one: adjust the position of the dental floss stick 3.

Figure 7 is the position of the dental floss pick 3 and the screw 7 before the teeth move in Figure 12 (i.e., the dotted line teeth). It is a cross-sectional view along the line A-A of Figure 6 (ie, a cross-sectional view along the closed part of the dental floss pick 3). .

Figure 9 is the position of the dental floss pick 3 and the screw 7 after the teeth in Figure 12 have been moved (i.e., the solid line teeth). It is a cross-sectional view along the line B-B in Figure 8 (ie, a cross-sectional view along the closed portion of the dental floss pick 3 ).

After the tooth is twisted, you can adjust the position of the dental floss pick 3: first loosen the screw 7, then adjust the position of the closed part of the dental floss pick 3, so that the closed part of the dental floss pick 3 rotates mesially and moves slightly toward the labium, and then Tighten screw 7, as shown in Figure 8, the three-dimensional position of screw 7 does not change.

The user gently pulls the corner of the mouth with one hand, holds the handle 2 with the other hand, and rotates the entire device into the mouth. The mark 17 in the center of the handle is aligned with the midline of the user's mouth (the gap between the two central incisors). Or (or a certain fixed position of the user's teeth)), gently press the device downward to allow the dental floss to enter the interproximal surface 16 and interproximal space 11 of the teeth for flossing.

Its advantage is: currently there are commercialized small screws and nuts, and the processing cost of the tooth picking device is relatively low and economical. Use a wrench to fix the nut 9 and keep the screw 7 away from the teeth. When the screw 7 is turned, the view is not blocked by the dental floss, and the rotation of the electric screwdriver is not blocked by the dental floss, which is more convenient. The dental floss stick 3 can be adjusted and replaced, and the bracket 1 does not need to be replaced. The cost is low, so this solution is preferred.

In the second case, as shown in Figure 10, the screw 7 penetrates the bracket hole 6 (a round hole, with threads) from the hole 5 (round hole, without threads) at the closed end of the dental floss pick, and the screw 7 is in contact with the bracket hole. 6 threaded connection.

The stem of the screw 7 has a clearance fit with the opening 5 at the closed end of the dental floss pick.

The edge of the screw cap and the bracket 1 clamp and fix the dental floss pick 3 together.

The contact surfaces of the edge of the screw cap, the bracket 1, the floss pick 3 and the nut 9 all need to have a certain degree of roughness and friction to play a fixing role.

At this time, the threaded structure device can be bonded or welded into the bracket 1, but the processing cost is high.

In the third case, as shown in Figure 11, the screw 7 penetrates the hole 5 (a round hole, without threads) from the closed end of the floss pick into the bracket hole 6 (a round hole, without threads), and the screw 7 is connected to the bracket. 1 The outer nut 9 is threaded. That is, the screw cap is close to the tooth side.

The shank of the screw 7 has a clearance fit with the opening 5 at the closed end of the dental floss pick, and the shank portion of the screw 7 has a clearance fit with the bracket hole 6 .

The edge of the screw cap and the nut 9 clamp and fix the floss pick 3 and the bracket 1 together.

The contact surfaces of the edge of the screw cap, the bracket 1, the floss pick 3 and the nut 9 all need to have a certain degree of roughness and friction to play a fixing role.

Option 2: For periodontal disease, etc., after the teeth are displaced, the position of the dental floss can also be adjusted by using a 3D printed dental floss stick so that the position of the dental floss is toward the labial (buccal) and lingual side, and the position of the dental floss can be rotated.

After the teeth are twisted, the shape and position of the closed end of the dental floss stick 3 does not change. One side of the open end of the dental floss stick 3 twists to the left and the other side twists to the right, so that the position of the dental floss also moves and twists. The dotted line is the original position shape of the dental floss pick 3 and the dental floss, and the solid line is the position shape of the dental floss pick 3 and the dental floss after the tooth is twisted. As shown in Figure 13.

After the teeth are labially displaced, the position of the dental floss can also be adjusted by using 3D printed dental floss sticks.

The front of the dental floss pick 3: the dotted line is the original position of the dental floss pick 3, and the solid line is the new position of the dental floss pick 3 after the teeth have moved labially. The dental floss pick 3 expands toward the labial side and shrinks appropriately toward the lingual side. As shown in Figure 14.

Example 3

As shown in Figure 15, for healthy people with inactive alveolar bone remodeling, the teeth only move in the mesial direction (mostly move mesially, and occasionally individual teeth move distally).

Because human teeth move mesially throughout life. The dental floss stick 3 can move along the bracket 3 (about 0.5-1mm) to adapt to the mesial movement of the teeth. It can be adjusted near or far (closer to the midline or farther from the midline).

The adjusting and fixing device includes a plurality of openings 5 in the closed end of the dental floss pick, a plurality of bracket holes 6 and a plurality of screws 7 .

At this time, the hole corresponding to the adjusted position in Embodiment 2 is not a round hole, but an elongated hole, that is, the closed end of the dental floss pick adopts an oblong opening.

The length direction of the opening 5 at the closed end of the dental floss stick and the length direction of the bracket hole 6 are both arranged along the mesial and distal directions of the teeth.

The stem of the screw 7 can only move mesially or distally along the closed end opening 5 of the elongated dental floss pick and the bracket hole 6 .

The first situation: the hole 5 at the closed end of the dental floss pick is a long smooth hole without threads. The bracket hole 6 provided on the bracket 1 is a long smooth hole without threads. The screw 7 penetrates the dental floss stick through the bracket hole 6. The closed end has a hole 5, and the screw 7 is threadedly connected to the nut 9 located inside the closed end of the dental floss pick 3.

The edge of the screw cap and the nut 9 fix the bracket 1 and the dental floss pick 3 together.

In the second case, the screw 7 is inserted into the bracket hole 6 (a round hole, with threads) from the hole 5 (round hole, without threads) at the closed end of the dental floss stick, and the screw 7 is threadedly connected to the bracket hole 6.

The stem of the screw 7 has a clearance fit with the opening 5 at the closed end of the dental floss pick.

The edge of the screw cap and the bracket 1 clamp and fix the dental floss pick 3 together.

The contact surfaces of the edge of the screw cap, the bracket 1, the floss pick 3 and the nut 9 all need to have a certain degree of roughness and friction to play a fixing role. In the third case, the screw 7 penetrates the bracket hole 6 (the slotted hole, without threads) from the hole 5 (oblong hole, without threads) at the closed end of the dental floss stick, and the screw 7 is threadedly connected to the nut 9 on the outside of the bracket 1.

For people with inactive alveolar bone remodeling, the teeth only move mesially (or distally) (mostly mesially). The dental floss stick 3 can only move along the direction of the long hole, so that it can adapt to the mesial movement of the teeth. The long hole can be suitable for the dental floss pick 3 to be adjusted proximally or distally (closer to the midline or away from the midline) on the bracket 1. The position of the screw 4 remains unchanged. The movement of the closed end of the dental floss pick 3 drives the entire dental floss pick 3 to move proximally. Medium or far displacement.

Embodiment 4: For patients with periodontal disease, as periodontitis worsens, the position of the gums continues to change, that is, the distance (c) from the crown to the gums will change, and the height (b) of the dental floss stick 3 also needs to be customized. design.

Figure 16 is a schematic diagram of the personalized design size structure for periodontal patients.

c is the distance from the apex of the gum 12 to the highest point of the tooth crown. The c value of each tooth is different.

b is the longitudinal height of the arcuate opening of the dental floss pick 3, which is related to the height of the teeth and the position of the gums 12.

a is the width of the arcuate opening of the floss pick 3 (or the length of the linear cleaning portion 4), which is related to the buccal and lingual or labial and lingual thickness of the teeth.

The position of the gum 12 at c1 is lower (due to periodontal disease) and c1 is larger than c2, so b1 of the dental floss pick 3 is larger than b2.

Dental floss can clean the interproximal surface 16 of the teeth (there is a feeling of obstruction when the dental floss passes through) and the interproximal space 11.

When flossing, hold the handle 2, aim the flossing device at the gap between the teeth, and pull it up and down against the proximal surface 16 of the teeth to clean the proximal surfaces of the teeth. After passing through the gap, the device can be pressed against the proximal space 11 of the teeth. (shown as shaded in Figure 16), pull up and down to clean the interproximal space 11 of the tooth, and then pull up and down against the interproximal space 18 of the previous tooth (shown as shaded in Figure 16) to clean the interproximal space of the other tooth 18. Therefore, during periodontal disease, when the c value becomes larger, the height b of the dental floss stick 3 should also become larger, so that while cleaning the adjacent surfaces of the teeth 16, it can also assist in cleaning the interproximal space 11 of the crown and root, as well as the proximal space 11. Gap 18, remove dental plaque, reduce the formation of dental calculus, and delay the progression of periodontal disease.

Embodiment 5: For healthy teeth, the width of the arcuate opening of the floss pick 3 is personalized according to the thickness of the tooth's buccal and lingual diameter (a), and then the width of the arcuate opening of the dental floss pick 3 is personalized according to the distance from the crown to the gum (c). and the height of floss pick 3 (b).

The thickness of the buccal and lingual diameter of each tooth is different, and the width (a) of the arcuate opening of the dental floss stick 3 is designed individually.

c is the distance from the apex of the gum 12 to the highest point of the tooth crown. The c value of each tooth is different.

b is the longitudinal height of the dental floss stick 3, and the length of b is designed according to c. This tooth-picking device has a personalized design of the longitudinal height b of the dental floss pick 3. When the dental floss is about to enter the depth of the gums, the closed end of the arcuate portion of the dental floss pick 3 will touch the occlusal surface of the teeth, preventing the entire The movement of the tooth-picking device toward the gums can prevent the dental floss from entering the gums too deeply and damaging the gums during tooth-picking, and the user's mouth will be smaller when picking teeth. The personalized design of a and b makes the user feel more foreign body. Smaller and more comfortable.

Embodiment 6: For users with large gaps between teeth, the material of the dental floss and the position of the dental floss are personalized.

There is periodontal ligament around the roots of teeth. Periodontal ligament is soft tissue. The soft tissue is flexible, so the teeth are mobile. In the natural dentition, each tooth has a certain degree of physiological movement, and the general movement in the horizontal direction does not exceed 0.2mm. The current relatively thin dental floss can have a diameter of 0.02mm. The incidence of periodontal disease among people over 30 years old in China is as high as 90%. Periodontal disease causes greater tooth movement, including horizontal directions: labial and lingual directions, mesial and distal directions, and vertical directions, that is, between the occlusal surface of the teeth and Root direction. It is easier to get floss through the gaps between teeth when flossing. The arrangement direction of the dental floss of the individually designed flossing device is designed along the arrangement direction of the teeth. Therefore, as long as the mark line 17 in the center of the handle is aligned with the gap between the two central incisors, it can be aligned with the gap between the teeth. . The gaps between the teeth are all in an up-and-down direction, and the dental floss also has a certain degree of elasticity. When flossing, you can pull the device up and down against the adjacent surfaces 16 of the teeth, and the floss will naturally move up and down to clean the corresponding gaps between the teeth. After passing through the interdental surfaces 16 (interdental spaces) of the teeth, the device can also be gently lifted up and down to clean the interproximal spaces 11 of the teeth (as shown by the shadow in Figure 16).

Dental floss of different thicknesses can be selected individually according to the size of the patient's teeth. For users with large gaps between teeth, you can choose brush-type dental floss (as shown in Figure 4) or dental floss that can absorb water. Dental floss that can absorb water should be soaked and smeared with fluoride substance before flossing (or the floss itself contains fluoride substance). After absorbing water and expanding, the contact area with the tooth surface will be larger, which can better clean the adjacent surfaces of the teeth. During the growth period of children, due to the continuous growth of the jaws, the gaps between the teeth are relatively large, and it is very easy for dental floss to pass through the gaps when flossing. For example, in a 5-year-old child, the distance between the teeth is relatively large. The maxillary teeth are shown in Figure 17. -1, two dental floss picks 3 can be placed adjacent to two teeth (as shown in Figure 17-2). As children grow, the anteroposterior diameter and width of the jaw increase. The length of the bracket retainer 8 in the buccal and lingual direction can be appropriately increased. The length of the closed end of the dental floss stick 3 in the buccal and lingual direction can also be appropriately increased, or the length of the dental floss stick can be appropriately increased. The size of the closed end opening 5 in the buccal and lingual direction is adjusted by using the clearance between the closed end opening 5 of the dental floss pick and the screw to move the dental floss pick 3 to the labial and buccal side relative to the bracket 1 to accommodate the widened jaw; since the dental floss stick 3 is fixed on the bracket 1 through the longitudinal screws 7, after removing the screws 7, the front and rear position relative to the bracket 1 can be adjusted at will, so a bracket 1 may continue to be used for several years, and more economy. The volume of deciduous teeth is smaller than that of permanent teeth. In order to reduce the foreign body sensation in children, a dental floss pick 3 with a longitudinal height (b) matching the height of the deciduous teeth can be designed to minimize the size of the opening and the foreign body sensation when flossing. According to the user's personal needs, a tooth-picking device can be designed to pick all the teeth in the upper and lower jaws at the same time, or a tooth-picking device to pick out all the teeth in the upper half of the mouth, and a tooth-picking device to pick out all the teeth in the lower half of the mouth. It can also be designed to pick out all the teeth on the left side at the same time. A tooth-picking device for the teeth, or a tooth-lifting device for all the teeth on the right side.

Embodiment 7: For users whose teeth are very closely adjacent, or whose oral cavity is sensitive to foreign objects, the shape and material of the dental floss are individually selected, and a local spacing device is designed individually.

For users whose teeth are very close together, choose flat floss or ultra-fine floss. For users whose teeth are closely adjacent and whose oral cavity is sensitive to foreign objects, this device can be made into two or several separate small parts. For example, a dental floss is provided every other tooth gap, and a flossing device can be used to floss at the same time. The mesial side of maxillary teeth No. 1, 3, 5, 7, 9, 11, and 13 (Figure 18-1), and another flossing device simultaneously picks the maxillary No. 2, 4, 6, 8, 10, and 12, The distal side of tooth No. 14 (Figure 18-2), one flossing device simultaneously picks the mesial side of teeth No. 1, 3, 5, 7, 9, 11, and 13 in the mandible (Fig. 19-1), and another The device simultaneously picks the distal sides of teeth No. 2, 4, 6, 8, 10, 12, and 14 (Figure 19-2). In this way, four tooth picking devices are needed to pick the entire mouth. With this design, users do not have to open their mouths widely. , relatively comfortable. In areas with particularly tight adjacencies, floss can also be placed every two teeth. When picking teeth, hold the handle 2, align the mark 17 in the center of the handle with the gap between the two central incisors (or a fixed position of the user's teeth), move it up and down, and enter the gap between the maxillary or mandibular teeth.

For users whose teeth are very closely adjacent, you can also install a dental flosser every other tooth gap, a bracket 1, two rows of dental floss sticks 3 fixed up and down, and a flossing device to simultaneously floss 1, 3, and 5 of the lower and upper jaws. The mesial side of teeth No. 7, 9, 11, and 13, and another flossing device simultaneously picks the distal side of teeth No. 2, 4, 6, 8, 10, 12, and 14 in the mandible and maxilla, thus picking the entire mouth. Requires 2 flossing devices. Or set up a dental floss every other tooth gap, and pick the upper left and lower right spacer teeth at the same time, and pick the lower left and upper right spacer teeth at the same time. These two designs require users to open their mouths wide at the beginning and are suitable for users with relatively large mouth openings. When picking teeth, hold the handle 2, align the mark 17 in the center of the handle with the gap between the two central incisors (or a fixed position of the user's teeth), and move it upward so that the upper row of dental floss first enters the maxillary teeth. gap, and then gently close your mouth so that the dental floss arranged below enters the gap between the teeth of the mandible.

Take an impression of the customer's teeth to make a model of the upper and lower jaw dentition, or directly scan the oral cavity to obtain a 3D model of the teeth. According to the arrangement of the teeth, the size of the teeth and the position of the tooth gum 12 (or the height c from the top of the crown to the gum), design the height (b) and width (a) of the arched opening of the bracket 1 and the dental floss stick 3, that is to say , the width a and height b of the dental floss stick 3 for flossing each tooth are different; the distance between adjacent dental floss sticks 3 is also set as needed. The thickness of the linear cleaning part 4 is designed according to the width of the gap between the two teeth. When the gap between the teeth is too large, a brush can be used as the linear cleaning part 4.

3D printed or customized disposable tooth-picking device (multiple dental floss sticks 3 are fixed on the bracket 1 and cannot be moved).

Or 3D print a personalized bracket 1 (with bracket retainer 8) that conforms to the patient's own dental arch shape, make a personalized arch-shaped dental floss stick 3, and then install the dental floss stick 3 on the bracket 1 through an adjusting fixture. . A device that can adjust the distance between the floss sticks 3 and replace the floss sticks 3 is made as a tooth-picking device that can be used repeatedly over a long period of time. (A plurality of dental floss picks 3 are movably arranged on the bracket 1).

Ordinary disposable teeth-picking devices can be made entirely of medical plastic or resin materials, which are low-cost and economical to use. The adjusting fixture may also be other adjusting fixtures known in the mechanical field.

For a personalized flossing device, since the shape of an adult's dental arch is basically unchanged, the position of the dental floss stick 3 can be personalized and flexibly adjusted to the horizontal position (labial and lingual direction, mesial and distal directions), and can be repeatedly Replace floss pick 3. The bracket 1 and the handle 2 can be personalized 3D printed or cast into metal form. One bracket 1 can be used for a lifetime, which is more economical. The dental floss stick 3 can be made into commercial flossed ones with different a and b sizes by one-time injection molding. The cost is Extremely low and easy to replace. For convenience during replacement, a magnetic screwdriver 13 can be inserted into the slot in the handle 2, corresponding to the adjusting screw 7 and the corresponding screw hole. Currently, there are metal floss picks 3 with stainless steel metal floss welded to them. The metal floss is stronger and the dental floss pick 3 basically does not need to be replaced. To sum up, the doctor and the patient can replace and adjust the dental floss stick 3 to the set position as needed.

The beneficial effect of the utility model is that, compared with the existing technology, the utility model can pick half a mouth of teeth at the same time or can flexibly set the number of remaining upper and lower teeth in a personalized tooth-picking device. The position of the dental floss stick is fixed, and the entire tooth-picking device It is an integrated, disposable general-purpose tooth-picking device and an adjustable-position, reusable advanced tooth-picking device. Setting up a vibration motor can improve the effect of cleaning teeth gaps, flexibly set the number of dental floss picks, is easy to use, has a novel structure, is low in cost, and is economical to use.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention and not to limit it. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: Any modifications or equivalent substitutions made to the specific embodiments of the present utility model without departing from the spirit and scope of the present utility model shall be covered by the protection scope of the claims of the present utility model.

Claims (10)

1. A tooth-picking device, including a bracket (1), a handle (2) and a plurality of dental floss picks (3), which is characterized by: Multiple dental floss picks (3) are provided on the bracket (1), and the open end of each dental floss pick (3) is provided with a linear cleaning portion (4); The handle (2) is provided on the bracket (1), and a vibration motor (10) is provided in the handle (2). 2. A tooth-picking device according to claim 1, characterized in that: The linear cleaning part (4) is dental floss or a brush. 3. A tooth-picking device according to claim 1, characterized in that: The bracket (1) has a U-shaped structure. 4. A tooth-picking device according to claim 1, characterized in that: The handle (2) is arranged in the middle position of the bracket (1). 5. A tooth-picking device according to claim 1, characterized in that: The dental floss pick (3) is installed on the bracket (1) by adjusting the fixing device. 6. A tooth-picking device according to claim 5, characterized in that: The adjustment and fixing device includes a plurality of closed-end openings of the dental floss stick (5), a plurality of bracket holes (6) and a plurality of screws (7); The internal link method of adjusting the fixing device is that the screw (7) passes through the bracket hole (6) into the opening (5) of the closed end of the dental floss pick, and the screw (7) is connected to the nut (9) located inside the closed end of the dental floss pick (3). ) threaded connection, the bracket hole (6) has the same diameter as the shank of the screw (7), and the opening (5) at the closed end of the dental floss pick has a clearance fit with the shank of the screw (7); Or the screw (7) is inserted into the bracket hole (6) from the opening (5) at the closed end of the dental floss stick, and the screw (7) is threadedly connected to the bracket hole (6); the stem of the screw (7) is closed with the dental floss stick. End opening (5) clearance fit; Or the screw (7) is inserted into the bracket hole (6) from the hole (5) at the closed end of the dental floss stick, and the screw (7) is threadedly connected to the nut (9) on the outside of the bracket (1); the rod of the screw (7) It fits with the hole (5) in the closed end of the dental floss stick. 7. A tooth-picking device according to claim 6, characterized in that: The adjustment and fixing device also includes a bracket retainer (8), a dental floss stick magnet (14) and a bracket magnet (15); An integrated flat plate-shaped bracket retainer (8) is provided around the bracket hole (6), a dental floss stick magnet (14) is provided at the closed end of the dental floss stick (3), and a bracket is provided at the bracket retainer (8). Magnet(15). 8. A tooth-picking device according to claim 6, characterized in that: The length direction of the opening (5) at the closed end of the dental floss stick is arranged along the mesial and distal directions of the teeth. 9. A tooth-picking device according to claim 1, characterized in that: The handle (2) is provided with a magnetic screwdriver (13). 10. A tooth-picking device according to claim 1, characterized in that: The tooth-picking device may be of an integral structure, with the number of floss picks (3) corresponding to the number of gaps between teeth; or it may be divided into multiple parts, with the number and position of the floss picks (3) set individually, and the multi-part tooth-picking device cooperates use.