CN219963131U

CN219963131U - Tooth picking device

Info

Publication number: CN219963131U
Application number: CN202223222970.5U
Authority: CN
Inventors: 丛蔚
Original assignee: Dalian Medical University
Current assignee: Dalian Medical University
Priority date: 2022-01-28
Filing date: 2022-12-02
Publication date: 2023-11-07
Anticipated expiration: 2032-12-02
Also published as: CN114557787A

Abstract

The utility model provides a device of picking teeth, belong to dentistry cleaning device technical field, set up a plurality of dental floss sticks on the support, every dental floss stick open end all is equipped with linear cleaning part, the dental floss stick is fixed or is set up on the support through adjusting fixing device, there is vibrating motor in the handle, dental floss stick is fixed on the support or can set up dental floss stick quantity and position in a flexible way, but 3D prints the individualized preparation of shaping, set up vibrating motor in the handle and probably improve clean tooth clearance effect, convenient to use, novel structure, with low costs, practicality and economy.

Description

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

By properly and effectively brushing the teeth, only about 70% of the plaque on the face of the tooth is removed, and 30% of the plaque is hidden in the adjacent face of the tooth and in the interproximal space where the bristles of the toothbrush are not accessible. If the interproximal surfaces and the gaps of the teeth are not thoroughly cleaned, bacterial plaque is formed on the surfaces of the teeth and the tooth roots, and acid and other harmful substances generated by the bacterial plaque can cause dental caries, gingivitis and even periodontal disease on the interproximal surfaces of the teeth, and can also cause oral cavity odor. To remove plaque from the adjacent surfaces, special tools such as dental floss must be used.

Humans have 20 deciduous teeth and 28-32 permanent teeth in the adult oral cavity at the age of 2.5-6 years. The existing commercialized dental floss rod can only clean the adjacent gaps among 2 teeth, each tooth is time-consuming and labor-consuming to pick by using the single dental floss rod, and the total number of teeth is 30 times needed to pick 28 teeth, so that all the adjacent surfaces and the adjacent gaps of the teeth can be cleaned once. The distal and medial surfaces of the last molar (surfaces far from the midline of the face) are often ignored during flossing, and are prone to caries, pulpitis and periapical periodontitis. The single dental floss bar commercialized at present is shown in figure 1, but people need to take a certain time for picking teeth after brushing teeth in the morning and evening every day, so that the people are difficult to persist for a long time; many people do not know and get used to pick teeth, and a certain method and skill are provided for picking teeth by using dental floss, so that a learning process is needed; in China, the incidence rate of caries of children is increased, however, children lack of autonomy and tolerance, are not easy to develop a habit of picking teeth, and are difficult to keep picking all adjacent surfaces of teeth every day; the caries incidence rate of people of 35-44 years old in China is 89%, and the caries incidence rate of people of 55-64 years old reaches 95.6%. The incidence rate of periodontal disease is up to 90% in people over 30 years old in China. Flossing is an effective means of preventing dental caries and periodontal disease, and thus a simple and easy-to-handle flossing device capable of simultaneously flossing a plurality of teeth is required.

The personalized tooth picking device is simple, time-saving and labor-saving, and can promote people, especially children, to actively use the tooth picking device to pick teeth, and greatly reduce the working intensity and difficulty of oral care of the elder suffering from intelligence loss. Before picking teeth, the dental floss is coated with fluorine-containing substances or desensitizing substances, and then picks teeth, or the dental floss itself contains fluorine-containing substances or desensitizing substances, so that dental caries and dentin hypersensitivity can be prevented and prevented by simultaneously picking teeth and simultaneously carrying out caries prevention and desensitizing treatment on the adjacent surfaces of teeth. The user can go to a nearby community hospital or dental clinic to carry out oral scanning image or model taking, according to the 3D image of the oral scanning of the user, a personalized tooth picking device is designed by a computer program, 3D printing or assembly is completed, after the user uses the tooth picking device for a period of time, if the device needs to be adjusted, the user or a dental assistant can manually adjust the tooth picking device and replace a dental floss rod according to a plaster model after the model taking by the user or a model 3D printed after the oral scanning; the computer can design an adjusting scheme according to the images of the front oral cavity scanning and the back oral cavity scanning, and control the mechanical arm to accurately adjust and/or replace the dental floss rod of the tooth pick device. The artificial intelligent robot can utilize the personalized tooth picking device to carry out oral care for the old, handicapped, children and other users who lose intelligence and are disabled.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides the tooth picking device, and the dental floss rod can be designed according to the arrangement and the shape of teeth of the oral cavity of a user, so that the tooth picking device is flexible and convenient, and has high cleaning efficiency.

The utility model adopts the following technical scheme.

The tooth picking device comprises a bracket, a handle and a plurality of dental floss rods, wherein the plurality of dental floss rods are arranged on the bracket, and a linear cleaning part is arranged at the opening end of each dental floss rod;

the support is provided with the handle, and a vibration motor is arranged in the handle.

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

Further, the support is of a U-shaped structure.

Further, the handle is arranged at the center of the bracket.

Further, the dental floss rod is arranged on the bracket through an adjusting and fixing device.

Further, the adjusting and fixing device comprises a plurality of dental floss rod closed end openings, a plurality of bracket holes and a plurality of screws;

the internal linking mode of the adjusting and fixing device is that a screw penetrates into an opening at the closed end of the dental floss rod from a bracket hole, the screw is in threaded connection with a nut positioned at the inner side of the closed end of the dental floss rod, the bracket hole has the same diameter as the rod part of the screw, and the opening at the closed end of the dental floss rod is in clearance fit with the rod part of the screw;

or a screw penetrates into the bracket hole from the opening at the closed end of the dental floss rod, and the screw is in threaded connection with the bracket hole; the rod part of the screw is in clearance fit with the opening of the closed end of the dental floss rod;

or a screw penetrates into the bracket hole from the opening at the closed end of the dental floss rod, and the screw is in threaded connection with the nut at the outer side of the bracket; the rod part of the screw is in clearance fit with the opening of the closed end of the dental floss rod.

Further, the adjusting and fixing device also comprises a bracket retainer, a dental floss rod magnet and a bracket magnet;

an integrated flat bracket retainer is arranged on the periphery of the bracket hole, a dental floss rod magnet is arranged at the closed end of the dental floss rod, and a bracket magnet is arranged at the bracket retainer.

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

Further, the handle is provided with a magnetic screwdriver.

Further, the tooth picking device is of an integral structure, and the number of the dental floss bars corresponds to the number of the tooth gaps; or divided into a plurality of parts, the number and the positions of the dental floss bars are set in a personalized way, and the multi-part tooth picking device is matched for use.

The whole solution is as follows: a model or scanned teeth is prepared, a 3D tooth model is established, and a personalized arch bracket is 3D printed or cast.

Dental floss is often used, abrasion occurs, and dental floss rods need to be replaced after abrasion.

The dental floss rod is fixed by the screw, the dental floss is worn, the dental floss rod can be replaced periodically, or the dental floss rod can be replaced periodically by adjusting the position of the dental floss rod irregularly, except for minors, the support does not need to be replaced basically for life, and the commercialized dental floss rod with dental floss of different types is very low in cost, so that the dental floss rod is economical and practical.

1. For people with active alveolar bone reconstruction, periodontal disease, orthodontic treatment and the like: the tooth position can be changed towards 3 directions, the positions of the dental floss bar towards the middle, the middle and the cheek and the tongue sides are required to be adjusted, the periodontal disease people have the gum position continuously lowered, the reached position during tooth picking of the dental floss is also changed along with the change of the gum position, namely the distance (c) from the dental crown to the gum is changed, and therefore the arch height of the dental floss bar, namely the longitudinal length height (b) is required to be adjusted.

Solution to the longitudinal length variation of a dental floss rod: depending on the periodontal disease tooth design, several commercially available flossing bars with floss, or 3D printing flossing bars, may be designed with different longitudinal lengths (b).

Solution for rotation and movement of the dental floss rod in horizontal plane:

the closed end of the dental floss rod adopts a circular opening, and the position of the dental floss rod can rotate and move in the horizontal plane.

Solution (2): 3D printing of the floss stick, changing the shape of the open end of the floss stick.

The two side arms of the dental floss bar are arranged to twist outwardly when the teeth are twisted and displaced.

The two side arms of the floss bar are arranged such that when the labial side of the floss is moved, one side arm of the floss bar expands toward the labial side and the other side arm is folded on the lingual side. When the lingual side of the teeth is moved, one side arm of the dental floss rod expands to the lingual side, and the other side arm is folded at the labial side.

2. For people with an inactive alveolar bone reconstruction, the teeth only move in the mesial (or distal) direction, (mostly in the mesial direction), solution: the closed end of the dental floss rod adopts an oblong opening.

Compared with the prior art, the utility model has the beneficial effects that the personalized tooth picking device capable of picking half teeth or flexibly setting the number of the remained upper teeth and lower teeth simultaneously is provided, the position of the dental floss rod is fixed, the whole tooth picking device is integrated, the tooth picking device is a disposable universal tooth picking device and the reusable advanced tooth picking device with adjustable positions, the vibration motor is arranged to possibly improve the effect of cleaning teeth gaps, the number of the dental floss rod is flexibly set, the use is convenient, the structure is novel, the cost is low, and the use is economical.

Drawings

FIG. 1 is a prior art dental floss rod;

FIG. 2 shows the structure of the disposable flossing device of example 1 (without teeth missing);

FIG. 3 is a schematic overall view of the tooth pick according to example 2 (without teeth missing);

FIG. 4 shows the structure of the tooth pick according to example 2 (missing teeth);

FIG. 5 is a partially exploded view of the first case of embodiment 2;

fig. 6 is a combined structural diagram of the first case of embodiment 2;

FIG. 7 is a cross-sectional view A-A of FIG. 6;

FIG. 8 is a schematic view of the first case of embodiment 2 showing the construction of the flossing rod in its moved position (off-center configuration);

FIG. 9 is a cross-sectional view B-B in FIG. 8;

fig. 10 is a schematic structural view of the second case of embodiment 2;

fig. 11 is a partially exploded view of the third case of embodiment 2;

FIG. 12 is a schematic illustration of teeth twisting and labial displacement;

FIG. 13 is a view of a flossing rod after teeth have been twisted;

FIG. 14 is a view of a flossing rod after labial displacement of teeth;

FIG. 15 is a schematic view showing the structure of the flossing rod having an elongated hole formed in the closed end of the flossing rod in example 3;

FIG. 16 is a personalized design dimensional structure schematic of healthy teeth and periodontal disease teeth;

FIG. 17 is a schematic view of the flossing device in a flossing position for an deciduous tooth of a 5 year old child;

FIG. 18 is a schematic view of an adult maxillary flossing position;

FIG. 19 is a schematic view of an adult mandibular floss set position;

1-a bracket; 2-a handle; 3-floss sticks; 4-a linear cleaning part; 5-tapping the closed end of the dental floss rod; 6-bracket holes; 7-a screw; 8-stent retainers; 9-a nut; 10-vibrating motor; 11-neighbor gap; 12-gingiva; 13-a screwdriver; 14-a flossing rod magnet; 15-a bracket magnet; 16-adjacent surface; 17-a median reticle on the handle.

Detailed Description

In order to make the objects, technical solutions and advantages of the present utility model more apparent, the technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The described embodiments of the utility model are only some, but not all, embodiments of the utility model. All other embodiments, which can be made by those skilled in the art without making any inventive effort, are within the scope of the present utility model.

Example 1

The tooth picking device comprises a bracket 1 and a plurality of dental floss rods 3.

The support 1 is provided with a plurality of dental floss rods 3, the closed ends of the dental floss rods 3 are fixed on the support 1, and the open end (arch-shaped opening) of each dental floss rod 3 is provided with a linear cleaning part 4. The two side arms of the dental floss bar 3 are in one plane (universal type).

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

The stent 1 may be U-shaped (15 flossing bars 3) or may be configured according to the actual missing teeth (e.g., missing teeth in the elderly, configured according to the actual tooth position).

The dental floss bar 3 is fixed on the bracket 1 and cannot move in position.

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

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

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

The overall structure is shown in fig. 2 and 3.

The rechargeable battery and the vibration motor 10 can be arranged in the handle 2, the switch is arranged on the surface of the handle 2, and the linear cleaning part 4 slightly vibrates when the vibration motor 10 is opened, so that the effect of cleaning the tooth gap can be improved, and the adjacent surface is beneficial to fluoride or desensitization.

The scheme needs to prepare a model of upper and lower jaw dentition or direct oral cavity scanning to obtain a 3D model of teeth, and a printing or casting tooth picking device is manufactured according to the 3D model, and is characterized in that: the tooth picking device is not required to be arranged, and the tooth picking device is replaced at random according to the conditions of wear of the tooth wire, retraction of periodontal disease gum and the like, so that the processing cost for manufacturing the disposable tooth picking device is relatively high.

Example 2

The dental floss rod 3 described in embodiment 1 is arranged on the holder 1 by means of an adjusting and fixing device.

The adjustment fixture includes a plurality of floss pick closed end openings 5, a plurality of bracket holes 6, and a plurality of screws 7.

First case: according to fig. 5, 6 and 7, a dental floss rod closed end opening 5 (circular unthreaded hole) is formed in the closed end of the dental floss rod 3, a bracket hole 6 (circular unthreaded hole) is formed in the bracket 1, a screw 7 penetrates into the dental floss rod closed end opening 5 from the bracket hole 6, and the screw 7 is in threaded connection with a nut 9 positioned on the inner side of the closed end of the dental floss rod 3. I.e. 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 rod 3 together.

The diameter of the open hole 5 at the closed end of the dental floss rod is larger than the diameter of the rod part of the screw 7, the diameter of the bracket hole 6 is equal to the diameter of the rod part of the screw 7, the open hole 5 at the closed end of the dental floss rod and the bracket hole 6 can be in other shapes, and the area of the open hole 5 at the closed end of the dental floss rod is required to be larger than the area of the rod part of the screw 7, namely, the open hole 5 at the closed end of the dental floss rod is in clearance fit with the rod part of the screw 7.

Further, for stable fixation, a bracket retainer 8 in the form of an integral flat plate 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 arranged to contain iron, a dental floss rod magnet 14 is arranged at the closed end of the dental floss rod, a bracket magnet 15 is arranged at the bracket retainer 8, the dental floss rod magnet 14 and the bracket magnet 15 can attract each other, the screw 7 and the nut 9 can be attracted, and the installation of the screw 7 and the nut 9 is also facilitated.

The contact surfaces of the screw cap edge, the bracket 1, the dental floss rod 3 and the nut 9 all need to have certain roughness and friction force to play a role in fixation.

For periodontal disease people, children, people receiving orthodontic treatment, or people with active alveolar bone remodeling: the closed end of the dental floss rod 3 adopts a dental floss rod closed end opening 5 (circular opening), the position of the dental floss rod 3 can be rotated and moved randomly in the range of the circular opening on the horizontal plane, and then the dental floss rod is fixed by a screw 7.

Taking periodontal disease as an example, after teeth are twisted and the labial (buccal) or lingual sides are displaced, the position of the floss rod 3 is adjusted.

As shown in fig. 12: in the case of periodontal disease, the teeth twist mesially and shift slightly labially. The broken line indicates the position before the tooth is moved, and the solid line indicates the position after the tooth is moved.

Scheme one: is to adjust the position of the dental floss stick 3.

Fig. 7 is a cross-sectional view taken along A-A of fig. 6 (i.e., a cross-sectional view taken along the closure of the flossing rod 3) of the flossing rod 3 and screw 7 prior to movement of the teeth of fig. 12 (i.e., dashed teeth).

Fig. 9 is a view taken along section B-B of fig. 8 (i.e., a cross-sectional view taken along the closure of the flossing rod 3) with the teeth of fig. 12 moved (i.e., solid teeth) and the screws 7 in place.

After the teeth are twisted, the position of the dental floss rod 3 can be adjusted: the screw 7 is loosened, and then the position of the closing portion of the dental floss rod 3 is adjusted so that the closing portion of the dental floss rod 3 is rotated in the middle and slightly moved to the labial side, and then the screw 7 is tightened, as shown in fig. 8, the three-dimensional position of the screw 7 is not changed at all.

The user lightly pulls the angle of the mouth with one hand and holds the handle 2 with the other hand, the whole device is rotated and placed in the mouth, the marking 17 in the centre of the handle is aligned with the midline of the user's mouth (the gap between the two central incisors or (or some fixed position of the user's teeth)), and the device is lightly pressed downwards to make the dental floss enter the adjacent surface 16 and the adjacent gap 11 of the teeth for picking teeth.

The advantages are that: at present, commercial small screws and nuts are available, and the tooth picking device has lower processing cost and is economical and practical. The screw 7 is far away from the teeth by using the spanner to fix the nut 9, when the screw 7 is screwed, the visual field is not blocked by dental floss, and the rotation of the electric screwdriver is not blocked by dental floss, so that the electric screwdriver is more convenient. The dental floss rod 3 can be adjusted and replaced, the bracket 1 does not need to be replaced, and the cost is low, so that the scheme is preferable.

In the second case, according to fig. 10, a screw 7 is threaded into a holder hole 6 (circular hole, threaded) from a closed end opening 5 (circular unthreaded) of a dental floss rod, and the screw 7 is screwed into the holder hole 6.

The shaft of the screw 7 is in clearance fit with the floss rod closed end opening 5.

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

In this case, the screw structure device can be bonded or welded into the bracket 1, but the processing cost is high.

In the third case, according to fig. 11, the screw 7 is threaded into the holder hole 6 (circular unthreaded) from the flossing rod closed end opening 5 (circular unthreaded), and the screw 7 is screwed with the nut 9 on the outside of the holder 1. I.e. the screw cap is close to the tooth flank.

The rod part of the screw 7 is in clearance fit with the dental floss rod closed end opening 5, and the rod part of the screw 7 is in clearance fit with the bracket hole 6.

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

Scheme II: periodontal disease and the like, the position of the dental floss can be adjusted by 3D printing dental floss bars after teeth are shifted, so that the dental floss position can rotate towards the labial (buccal) lingual side.

After the teeth are twisted, the shape and the position of the closed end of the dental floss rod 3 are unchanged, one side of the open end of the dental floss rod 3 is twisted leftwards, and the other side of the open end of the dental floss rod is twisted rightwards, so that the position of the dental floss is also moved and twisted. The broken line indicates the original shape of the dental floss bar 3 and dental floss, and the solid line indicates the shape of the dental floss bar 3 and dental floss after the teeth are twisted. As shown in fig. 13.

After the tooth is moved to the labial side, the position of the dental floss can be adjusted through the 3D printing dental floss rod.

Front face of the dental floss stick 3: the broken line indicates the original position of the dental floss stick 3, and the solid line indicates the position of the new dental floss stick 3 after the tooth has moved labially. The floss pick 3 expands toward the labial side and the lingual side is properly folded. As shown in fig. 14.

Example 3

As shown in fig. 15, the teeth were moved only in the mesial (most of them were moved in the mesial direction, and occasionally individual teeth were moved in the distal direction) for healthy people with an inactive alveolar bone reconstruction.

The mesial movement occurs due to the lifetime of a human tooth. The floss rod 3 can be moved along the support 3 (about 0.5-1 mm) to accommodate the mesial movement of the teeth. Can be adjusted toward the middle and far (near the midline or far from the midline).

At this time, the hole corresponding to the adjustment position in embodiment 2 is not a circular hole, but a long hole, that is, the closed end of the flossing rod adopts an oblong opening.

The length direction of the open hole 5 at the closed end of the dental floss rod and the length direction of the bracket hole 6 are arranged along the middle and far directions of the teeth.

The shaft of the screw 7 can only move in the middle or far along the opening 5 of the closed end of the elongated dental floss rod and the bracket hole 6.

First case: the open pore 5 at the closed end of the dental floss rod is a long unthreaded hole, the bracket 1 is provided with a bracket hole 6 which is a long unthreaded hole, a screw 7 penetrates the open pore 5 at the closed end of the dental floss rod from the bracket hole 6, and the screw 7 is in threaded connection with a nut 9 positioned at the inner side of the closed end of the dental floss rod 3.

The screw cap edge and nut 9 secure the bracket 1 and the floss rod 3 together.

In the second case, the screw 7 penetrates the bracket hole 6 (circular hole, threaded) from the floss rod closed end opening 5 (circular unthreaded), and the screw 7 is screwed with the bracket hole 6.

The contact surfaces of the screw cap edge, the bracket 1, the dental floss rod 3 and the nut 9 all need to have certain roughness and friction force to play a role in fixation. In the third case, the screw 7 penetrates the bracket hole 6 (long light hole, no thread) from the dental floss rod closed end opening 5 (long light hole, no thread), and the screw 7 is in threaded connection with the nut 9 outside the bracket 1.

For people with an inactive alveolar bone remodeling, the teeth move only mesially (or distal), most of them. The dental floss rod 3 can only move along the long hole direction, so that the dental floss rod can adapt to the mesial movement of teeth. The slot may be adapted for proximal and distal (near or distal to the midline) adjustment of the floss pick 3 on the carrier 1, with the position of the screw 4 unchanged and the closed end of the floss pick 3 moving to bring the entire floss pick 3 into proximal or distal displacement.

Example 4: for periodontal disease patients, as periodontitis progresses, the position of the gums changes continuously, i.e., the crown-to-gum distance (c) changes, and the height (b) of the flossing rod 3 also requires a personalized design.

Fig. 16 is a personalized design size configuration diagram of periodontal disease patients.

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

b is the longitudinal height of the arcuate opening of the flossing rod 3, which is related to the tooth height and the position of the gums 12.

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

The position of the gum 12 at c1 is low (due to periodontal disease) c1 is greater than c2, so b1 of the flossing rod 3 is greater than b2.

The floss cleans the adjacent surfaces 16 of the teeth (the floss experiences a blockage as it passes) and the adjacent spaces 11.

When the dental floss picks teeth, the handle 2 is held by hand, the tooth picking device is aligned with the tooth gap and is lifted up and down along the adjacent surface 16 of the tooth, the adjacent surface of the tooth can be cleaned, after passing through the tooth gap, the device can be lifted up and down along the adjacent gap 11 of the tooth (shown as the shadow in figure 16), the adjacent gap 11 of the tooth is cleaned, and then lifted up and down along the adjacent gap 18 of the previous tooth (shown as the shadow in figure 16), so that the value c is increased during periodontal disease, the height b of the dental floss rod 3 is also increased along with the adjacent gap 18 of the tooth crown and the tooth root, so that dental plaque is removed, dental calculus formation is reduced, and progress of periodontal disease is delayed.

Example 5: for healthy teeth, the width (a) of the arcuate opening of the flossing rod 3 is individually designed according to the thickness of the buccal lingual path of the teeth, and then the height (b) of the flossing rod 3 is individually designed according to the distance (c) from the crown to the gum.

The thickness of the buccal lingual path of each tooth is different and the width (a) of the arcuate opening of the flossing rod 3 is individually designed.

b is the longitudinal height of the dental floss stick 3, the length of b is designed according to c. According to the tooth picking device, the longitudinal height b of the dental floss rod 3 is designed in a personalized way, when dental floss is required to enter into the deep part of the gum, the closed end of the arch part of the dental floss rod 3 contacts with the occlusal surface of the tooth, so that the whole tooth picking device is prevented from moving towards the gum direction, the deep part of the dental floss entering into the gum during tooth picking can be prevented from damaging the gum, the mouth opening is smaller during tooth picking of a user, and the foreign body feeling of the user is smaller and more comfortable due to the personalized design of a and b.

Example 6: for users with large tooth gaps, the material of the dental floss and the placement position of the dental floss are designed in a personalized way.

The periodontal ligament is a soft tissue around the root of a tooth, and the soft tissue is flexible, so that the tooth is active. In natural dentition, each tooth has a certain physiological mobility, and the general mobility in the horizontal direction is not more than 0.2mm. At present, the diameter of the dental floss is 0.02mm. The incidence rate of periodontal disease is up to 90% in people over 30 years old in China, the tooth mobility of periodontal disease is bigger, and the tooth mobility comprises the following directions: the labial lingual direction, the mesial-distal direction, and the vertical direction, namely the occlusal surface and the root direction of the tooth. The floss is easier to pass through the gaps between teeth during tooth picking. The arrangement direction of the dental floss of the personalized tooth pick device is designed along the arrangement direction of the teeth, so that the teeth gaps can be aligned as long as the marking 17 in the middle of the handle is aligned with the gaps between the two middle incisors. The tooth gaps are all in the vertical direction, the dental floss is also elastic to a certain extent, when the dental floss picks teeth, the device can be lifted up and down along the adjacent surface 16 of the teeth, the dental floss naturally moves up and down to clean the corresponding tooth gaps, and after passing through the adjacent surface 16 (tooth gaps), the device can be lifted up and down lightly to clean the adjacent gaps 11 of the teeth (as shown in the shadow of fig. 16).

The dental floss with different thicknesses can be selected individually according to the size of the dental space of a patient, and a user with large tooth space can select the dental floss with brush type (as shown in figure 4) or the dental floss with water absorption. The dental floss capable of absorbing water is soaked and smeared with fluorine-containing substances (or the dental floss contains fluorine substances) before tooth picking, and the contact area between the dental floss and the dental floss after water absorption expansion is larger, so that the adjacent surface of the tooth can be cleaned better. In the development stage of children, as the jawbone grows continuously, gaps among teeth are relatively large, and dental floss is easy to pass through the gaps among teeth when picking teeth, for example, children aged 5 years, the distance between teeth is relatively large, and two dental floss rods 3 can be arranged on adjacent surfaces of 2 teeth of a maxillary tooth as shown in fig. 17-1 (as shown in fig. 17-2). As the child grows, the anterior-posterior diameter and width of the jawbone are increased, so that the length of the bracket retainer 8 in the cheek-tongue direction can be properly increased, the length of the closed end of the dental floss rod 3 in the cheek-tongue direction can be properly increased, or the dimension of the opening 5 of the closed end of the dental floss rod in the cheek-tongue direction can be properly increased, and the dental floss rod 3 is adjusted to move towards the cheek side of the lip relative to the bracket 1 by utilizing the clearance fit between the opening 5 of the closed end of the dental floss rod and the screw so as to adapt to the widened jawbone; since the dental floss bar 3 is fixed on the bracket 1 through the longitudinal screw 7, the front-back direction position relative to the bracket 1 can be randomly adjusted after the screw 7 is removed, and therefore, one bracket 1 can be used for a plurality of years, and is more economical. The size of the deciduous teeth is smaller than that of the permanent teeth, so that the dental floss rod 3 with the longitudinal height (b) conforming to the height of the deciduous teeth can be designed for reducing the foreign body sensation of children, and the size of an opening and the foreign body sensation during tooth picking can be reduced to the maximum extent. According to the personal demands of users, the tooth picking device for picking all teeth of the upper jaw and the lower jaw simultaneously or the tooth picking device for picking all teeth of the upper half mouth and the tooth picking device for picking all teeth of the lower half mouth can be designed, and the tooth picking device for picking all teeth of the left side simultaneously or the tooth picking device for picking all teeth of the right side simultaneously can also be designed.

Example 7: for users with very close teeth or users with relatively sensitive mouth feeling to foreign matters, the shape and the material of the dental floss are selected in a personalized way, and the device for picking teeth at local intervals is designed in a personalized way.

For users with very close dental abutment, the floss is selected to be flat or ultra-fine. For users whose teeth are closely adjacent and whose mouth is sensitive to the sensation of foreign matter, the device can be made in two or several separate small parts, such as a floss placed every 1 gap between teeth, one pick can pick the mesial side of the teeth 1,3,5,7,9, 11, 13 of the upper jaw simultaneously (fig. 18-1), the other pick can pick the mesial side of the teeth 2,4,6,8, 10, 12, 14 of the upper jaw simultaneously (fig. 18-2), one pick can pick the mesial side of the teeth 1,3,5,7,9, 11, 13 of the lower jaw simultaneously (fig. 19-1), and the other pick can pick the mesial side of the teeth 2,4,6,8, 10, 12, 14 of the lower jaw simultaneously (fig. 19-2), so that a full mouth pick requires 4 picks, which is not large and is more comfortable. A floss may be placed adjacent to a particularly tight area every 2 slits. When picking teeth, the handle 2 is held, and the marking 17 in the middle of the handle is aligned with a gap between two middle incisors (or a certain fixed position of teeth of a user), and moves up and down to enter the gap of the teeth of the upper jaw or the lower jaw.

For users with very tight teeth abutment, a dental floss can be arranged at intervals of 1 tooth gap, a bracket 1 is used for fixing two rows of dental floss rods 3 up and down, one tooth picking device picks the mesial sides of teeth of No. 1,3,5,7,9, 11 and 13 of the lower jaw and the upper jaw simultaneously, and the other tooth picking device picks the mesial sides of teeth of No. 2,4,6,8, 10, 12 and 14 of the lower jaw and the upper jaw simultaneously, so that 2 tooth picking devices are needed for full mouth tooth picking. Or a dental floss is arranged at intervals of 1 tooth gap, and the left upper and right lower spacing teeth are picked at the same time, and the left lower and right upper spacing teeth are picked at the same time. Both designs require the user to initially open a large mouth, and are suitable for users with relatively large mouth opening. When picking teeth, the handle 2 is held, the marking 17 in the middle of the handle is aligned with a gap between two middle incisors (or a certain fixed position of teeth of a user), and the upper row of dental floss is moved upwards, so that the upper row of dental floss firstly enters the gap of teeth of the upper jaw, and then the upper row of dental floss is slightly closed, so that the dental floss arranged below enters the dental gap of the lower jaw.

And taking a model for teeth of a customer, preparing a model of the upper and lower dentitions, or directly scanning an oral cavity to obtain a 3D model of the teeth. The height (b) and width (a) of the arcuate openings of the bracket 1 and the flossing rod 3 are designed according to the arrangement of the teeth, the size of the teeth and the position of the teeth and gums 12 (or the height c of the crown top to the gums), that is, the width a, the height b of the flossing rod 3 of each tooth is different; the distance between adjacent floss sticks 3 is also set as required. The thickness of the linear cleaning section 4 is designed according to the gap width between two teeth, and when the gap between teeth is excessively large, a brush may be used as the linear cleaning section 4.

A 3D printed or personalized disposable flossing device (a plurality of floss sticks 3 fixed on a support 1 and not movable).

Or 3D printing a personalized bracket 1 (with a bracket retainer 8) conforming to the dental arch shape of a patient, manufacturing a personalized arched dental floss rod 3, and then installing the dental floss rod 3 on the bracket 1 through an adjusting and fixing device. The device which can adjust the interval between the dental floss sticks 3 and can also replace the dental floss sticks 3 is manufactured and used as a tooth picking device for long-term repeated use. (a plurality of floss sticks 3 are movably provided on the holder 1).

The common disposable tooth picking device can be integrally made of medical plastics and resin materials, and has low cost and economical use. Other adjustment fixtures known in the mechanical arts may also be used.

For the personalized tooth picking device, the shape of the dental arch of an adult is basically unchanged, so that the position of the dental floss rod 3 can be personalized and flexibly adjusted to the horizontal position (the labial lingual direction and the mesial and distal directions), and the dental floss rod 3 can be repeatedly replaced. The bracket 1 and the handle 2 can be personalized 3D printed or cast into a metal form, one bracket 1 can be used for a long time, is more economical, and can be used for commercialized one-time injection molding of dental floss with different a and b sizes by using the dental floss rod 3, so that the cost is extremely low, and the dental floss is convenient to replace. The magnetic screwdriver 13 can be embedded in the slot of the handle 2 for convenience in replacement, and the screw 7 and the corresponding screw hole are correspondingly adjusted. Currently, a dental floss rod 3 made of metal is welded with stainless steel dental floss, the metal dental floss is stronger, and the dental floss rod 3 basically does not need to be replaced. In summary, the doctor and patient can change and adjust the flossing rod 3 to a set position as desired.

Compared with the prior art, the utility model has the beneficial effects that the personalized tooth picking device capable of picking half teeth or flexibly setting the number of the remained upper teeth and lower teeth simultaneously is provided, the position of a dental floss rod is fixed, the whole tooth picking device is integrated, and the tooth picking device is a disposable universal tooth picking device and a reusable advanced tooth picking device with adjustable positions. The vibration motor is arranged to possibly improve the effect of cleaning the teeth gaps, the quantity of dental floss bars is flexibly arranged, the use is convenient, the structure is novel, the cost is low, and the use is economical.

Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that: modifications and equivalents may be made to the specific embodiments of the utility model without departing from the spirit and scope of the utility model, which is intended to be covered by the claims.

Claims

1. Tooth pick device, including support (1), handle (2) and a plurality of dental floss stick (3), its characterized in that:

a plurality of dental floss rods (3) are arranged on the bracket (1), and a linear cleaning part (4) is arranged at the opening end of each dental floss rod (3);

the support (1) is provided with the handle (2), and a vibration motor (10) is arranged in the handle (2).

2. A tooth pick according to claim 1, wherein:

the linear cleaning part (4) is a dental floss or a brush.

3. A tooth pick according to claim 1, wherein:

the bracket (1) is of a U-shaped structure.

4. A tooth pick according to claim 1, wherein:

the handle (2) is arranged at the middle position of the bracket (1).

5. A tooth pick according to claim 1, wherein:

the dental floss rod (3) is arranged on the bracket (1) through an adjusting and fixing device.

6. A tooth pick according to claim 5, wherein:

the adjusting and fixing device comprises a plurality of dental floss rod closed end openings (5), a plurality of bracket holes (6) and a plurality of screws (7);

the internal linking mode of the adjusting and fixing device is that a screw (7) penetrates into a dental floss rod closed end opening (5) from a bracket hole (6), the screw (7) is in threaded connection with a nut (9) positioned at the inner side of the dental floss rod closed end (3), the diameter of the bracket hole (6) is the same as that of the rod part of the screw (7), and the dental floss rod closed end opening (5) is in clearance fit with the rod part of the screw (7);

or a screw (7) penetrates into the bracket hole (6) from the opening (5) at the closed end of the dental floss rod, and the screw (7) is in threaded connection with the bracket hole (6); the rod part of the screw (7) is in clearance fit with the opening (5) at the closed end of the dental floss rod;

or a screw (7) penetrates into the bracket hole (6) from the opening (5) at the closed end of the dental floss rod, and the screw (7) is in threaded connection with a nut (9) at the outer side of the bracket (1); the rod part of the screw (7) is in clearance fit with the opening (5) at the closed end of the dental floss rod.

7. A tooth pick according to claim 6, wherein:

the adjusting and fixing device also comprises a bracket retainer (8), a dental floss rod magnet (14) and a bracket magnet (15);

a bracket fixing body (8) in an integrated flat plate shape is arranged on the periphery of the bracket hole (6), a dental floss rod magnet (14) is arranged at the closed end of the dental floss rod (3), and a bracket magnet (15) is arranged at the bracket fixing body (8).

8. A tooth pick according to claim 6, wherein:

the length direction of the dental floss rod closed end opening (5) is arranged along the mesial and distal directions of the teeth.

9. A tooth pick according to claim 1, wherein:

the handle (2) is provided with a magnetic screwdriver (13).

10. A tooth pick according to claim 1, wherein:

the tooth picking device is of an integral structure, and the number of the dental floss rods (3) corresponds to the number of the tooth gaps; or the dental floss pick is divided into a plurality of parts, the number and the positions of the dental floss sticks (3) are set in a personalized way, and the multi-part dental floss pick is matched with the dental floss pick.