JP2021512658A - toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothbrush.
According to the present invention, a pair of toothbrush bristles composed of bristles of a first toothbrush having a fine end portion and bristles of a second toothbrush having a flat end portion are formed as a bristles to form an interdental or tooth surface. Not only can the food debris on the teeth be removed more efficiently, but even in the case of teeth fitted with orthodontic appliances, the food debris remaining between the teeth and the orthodontic appliance can be removed more efficiently. Provide a toothbrush that can.
[Selection diagram] FIG. 3a

Description

The present invention relates to a toothbrush, and more specifically, a pair of toothbrush bristles including bristles of a first toothbrush having a fine end portion and bristles of a second toothbrush having a flat end portion are formed as a hair bundle to form an interdental space or a tooth. Not only can the food debris on the surface of the toothbrush be removed more efficiently, but even in the case of teeth fitted with orthodontic appliances, the food debris remaining between the teeth and the orthodontic appliance can be removed more efficiently. Regarding toothbrushes that can be.

Toothbrushes are generally used to brush teeth and can keep teeth clean by removing debris that sticks to the surface of teeth or gets caught between teeth by ingesting food.

A typical toothbrush includes a head and a handle in which bundles of toothbrush bristles are planted in rows, and the tips of the bristles of a plurality of toothbrushes are formed flat and straight. ..

However, as described above, a general toothbrush having flat and straight toothbrush bristles has a problem that it is difficult to efficiently remove not only the food debris sandwiched between the teeth but also the food debris on the tooth surface. is there.

On the other hand, in recent years, treatments for diagnosing, preventing and treating abnormalities in tooth arrangement and facial features through orthodontic treatment have been widely used.

Here, orthodontic treatment involves simply aligning the bent teeth correctly, correcting the various skeletal incongruities that can occur during the growth process and allowing them to perform their normal functioning, healthy oral tissue and It means improving aesthetics.

And the treatment method of orthodontic treatment is roughly divided into orthodontic diagnosis and orthodontic treatment process, and the orthodontic diagnosis is possessed by the patient using materials such as initial diagnosis, X-ray photography, tooth model, facial photograph, and intraoral photograph. Including the process of analyzing the problems and establishing an appropriate treatment plan for each person, orthodontic treatment includes the movement of teeth using fixed orthodontic appliances, temporary binding orthodontic appliances, and extraoral appliances. It involves the process of regulating the growth of the jawbone.

After such orthodontic treatment, it takes at least 18 to 30 months for orthodontics, and there is a high risk of tooth decay and periodontal disease due to complicated orthodontic appliances, so be careful when brushing your teeth. It is good to pay attention to.

However, as mentioned above, with common toothbrush bristles with flat and straight toothbrush bristles, not only is it difficult to pay close attention to brushing while preventing damage to the orthodontic appliance, but also the dentition. There is a problem that it is difficult to efficiently remove the food residue caught between the orthodontic appliance and the teeth.

Further, in the conventional toothbrush, the hair forming structure of the toothbrush dedicated to the back teeth and the structure of the toothbrush having the toothbrush hair for the implant practitioner have not been proposed at all.

The present invention is for solving the above-mentioned problems, and an object of the present invention is a toothbrush bristles composed of a first toothbrush bristles having a fine end portion and a second toothbrush bristles having a flat end portion. It is an object of the present invention to provide a toothbrush that can form a pair as a bundle to more efficiently remove food debris not only between teeth but also on the surface of teeth and brush teeth finely.

Another object of the present invention is to provide a toothbrush capable of separating and forming toothbrush bristles into external toothbrush bristles and internal toothbrush bristles to finely brush between the orthodontic appliance and the teeth.

Another object of the present invention is to provide an efficient toothbrush by forming the bristles of another molar toothbrush at a corner of one surface of the head of the toothbrush to remove food debris caught between the molars. ..

Another object of the present invention is to provide a toothbrush capable of forming embossing on the bristles of a plurality of toothbrushes to make it easier to remove food debris on the tooth surface and to provide elastic restoring force. is there.

Another object of the present invention is to provide a toothbrush in which a bundle of toothbrush bristles is formed in the center of one surface of a head in only two rows in the length direction and can be usefully used as a toothbrush for an implant practitioner. Is.

In order to achieve such an object, the toothbrush according to the present invention is a toothbrush including a head and a handle connected to one side of the head, the first toothbrush having a corresponding fine end portion between teeth. Containing toothbrush bristles arranged in multiple rows on one surface of the head, consisting of bristles and a bundle of second toothbrush bristles having a flat end corresponding to the tooth surface inside the bristles of the first toothbrush. It is characterized by.

Here, the bristles of the toothbrush are composed of the bristles of the first toothbrush and the bristles of the second toothbrush, and the bristles of the external toothbrush that are transplanted to the outside of one surface of the head and the bristles of the first toothbrush. It is desirable that the bristles are composed of the bristles of the second toothbrush and the bristles of the inner toothbrush that are transplanted to the head so as to be arranged inside the bristles of the outer toothbrush.

Further, it is desirable that the bristles of the outer toothbrush and the bristles of the inner toothbrush are formed to have different lengths so as to be arranged in a "V" -shaped cross section.

Further, it is desirable that the ends of the bristles of the plurality of unit toothbrushes form a bundle that is inclined inward and downward, and further include the bristles of the back toothbrush that are transplanted in a plurality of rows on the outside of one surface of the head.

The bristles of the molar toothbrush are normal bristles or fine bristles, and the bristles of the toothbrush are, for example, fine bristles.

Further, it is desirable that the bristles of the molar toothbrush are formed in a bundle in a plurality of rows at the corners of one surface of the head.

Further, it is desirable that the bristles of the first toothbrush are formed in a tapered shape in which the outer diameter becomes smaller in the direction of the outer end portion.

Further, it is desirable that the length of the bristles of the second toothbrush including the flat end portion is formed shorter than the length of the bristles of the first toothbrush.

Further, it is desirable to form embossing on the outer peripheral edges of the bristles of the first toothbrush and the bristles of the second toothbrush.

Further, it is desirable to form embossing on the outer peripheral edge of the bristles of the molar toothbrush.

Further, it is desirable that the upper end of each unit toothbrush bristles of the molar toothbrush bristles has a flat end portion.

Further, the bristles of the toothbrush and the bristles of the back toothbrush, which consist of a pair of bristles of the first and second toothbrushes, are formed in the central portion of one surface of the head in only two rows in the length direction. Is desirable.

As described above, according to the toothbrush according to the present invention, a pair of toothbrush bristles consisting of bristles of a first toothbrush having a fine end portion and bristles of a second toothbrush having a flat end portion are formed in a bundle and between teeth. Not only that, it has the effect of being able to remove food debris on the surface of the teeth more efficiently.

In addition, the ends of the bristles of the external toothbrush and the bristles of the internal toothbrush, which are separately formed by flocking so as to be perpendicular to the upper surface of the head, are arranged in a "V" -shaped cross section to form an orthodontic appliance and the teeth. Since the space can be finely polished, there is also an advantage that defects such as enamel wear and gum damage and hair loss can be minimized.

In addition, by forming the bristles of another back toothbrush having a shape in which the ends of the bristles of a plurality of toothbrushes are inclined inward and downward at the corners of one surface of the head of the toothbrush, the food debris caught between the back teeth is surely removed. It also has the advantage of being able to.

In addition, embossing can be formed on the bristles of multiple toothbrushes to make it easier to remove food debris on the tooth surface, and elastic restoration force can be provided. The space between the embosses causes bubbles to be generated when toothpaste is used. It also has the effect of increasing the amount and sustaining the exhilaration.

Further, there is an advantage that a bundle of toothbrush bristles can be formed in the center of one surface of the head in only two rows in the length direction and can be effectively used as a toothbrush for an implant practitioner.

It is a top view of the toothbrush according to one Example of this invention. It is a bottom view of the toothbrush according to one Example of this invention. It is sectional drawing of the line AA of FIG. It is an enlarged view which enlarged the "B" part of FIG. It is an example figure which shows the use state of the toothbrush by one Example of this invention. FIG. 5 is a cross-sectional view taken along the line AA of FIG. 1 according to another embodiment of the present invention. It is an enlarged view which expanded the "B" part of FIG. 1 by another Example of this invention. It is an example figure which shows the use state of the toothbrush by another Example of this invention. It is the perspective view of the toothbrush and the enlarged view of the "C" part by another Example of this invention. It is a top view of the toothbrush according to another embodiment of this invention.

The present invention can be implemented in various other forms without departing from its technical ideas and main features. Therefore, the examples of the present invention are merely examples and should not be construed in a limited manner.

Terms such as first and second can be used to describe various components, but the components are not limited by the terms.

The term is used only to distinguish one component from the other. For example, without departing from the scope of rights of the present invention, the first component can be named the second component, and similarly the second component can be named the first component.

When it is mentioned that one component is "connected", "connected", etc. to another component, it may be directly linked to or connected to another component. It must be understood that there may be other components in between.

On the other hand, when it is mentioned that one component is "directly linked" or "directly connected" to another component, it must be understood that there is no other component in between.

The terms used in this application are used solely to describe a particular embodiment and are not intended to limit the invention. A singular expression includes multiple expressions unless they have distinctly different meanings in the context.

In this application, terms such as "include", "provide", and "have" include features, numbers, stages, actions, components, parts, or a combination thereof described in the specification. Understand that it is intended to specify and does not preclude the existence or addition of one or more other features, numbers, stages, behaviors, components, parts or combinations thereof. It must be.

Unless defined otherwise, all terms used herein, including technical or scientific terms, are those commonly understood by those with ordinary knowledge in the art to which the present invention belongs. Has the same meaning as.

Terms such as those defined in commonly used dictionaries should be construed to have meanings that are consistent with the context of the relevant technology and are ideal unless explicitly defined in this application. Or it is not interpreted in an overly formal sense.

Hereinafter, in order to explain in detail to the extent that a person having ordinary knowledge in the technical field to which the present invention belongs can easily carry out the present invention, the most desirable embodiment of the present invention will be described in detail with reference to the accompanying drawings. To do.

1 is a plan view of a toothbrush according to an embodiment of the present invention, FIG. 2 is a bottom view of a toothbrush according to an embodiment of the present invention, and FIG. 3a is a sectional view taken along line AA of FIG. 3b is an enlarged view of an enlarged portion of “B” in FIG. 1, and FIG. 3c is an exemplary view showing a state of use of a toothbrush according to an embodiment of the present invention.

As shown, another toothbrush for orthodontic appliances according to the present invention has a first toothbrush having a head 10, a handle 20 connected to one side of the head 10, and a corresponding fine end 111 between teeth when brushing teeth. Toothbrush bristles 110 and a bundle of second toothbrush bristles 120 having a flat end portion 121 corresponding to the tooth surface inside the first toothbrush bristles 110, and a plurality of rows of bristles are planted on one surface of the head 10. Includes 100 toothbrush bristles that are arranged and arranged.

It is desirable that the head 10 and the handle 20 are integrally molded by a single synthetic resin having appropriate strength and hardness, and a thin neck is formed between the head 10 and the handle 20. 30 is formed.

The head 10 has a structure in which toothbrush bristles 100 arranged in a plurality of rows are flocked, and as shown in FIGS. 1 and 3a, the head 10 is formed in a substantially flat plate shape, and the toothbrush bristles 100 are flocked on the upper surface 11. , Its front and rear corners are rounded so that it can be easily taken in and out of the mouth.

Referring to FIG. 2, a tongue coating removing member 40 is formed on the bottom surface 12 of the head 10, and such a tongue coating removing member 40 is simply formed on the base 41 inserted into the bottom surface of the head 10 and the surface of the base 41. It includes a tongue coating removing protrusion 42 formed integrally. A plurality of the tongue coating removing protrusions 42 are formed long along the left-right width direction of the head 10 and at predetermined intervals along the length direction of the head 10.

Thereby, the tongue coating removing member 40 can scrape off the white, gray or yellowish brown substance formed on the surface of the tongue. The tongue coating removing member 40 has a predetermined elasticity and friction coefficient, is made of a synthetic resin material different from that of the head 10, and can be molded by insert injection on the bottom surface of the head 10.

The handle 20 is configured to be gripped by a hand to brush teeth, and as shown in FIGS. 1 and 2, non-slip members 21 are formed on the upper surface and the bottom surface to prevent the gripping hand from slipping. it can. As shown in FIG. 1, the non-slip member 21 can be formed by a plurality of protrusions protruding from the surface of the handle 20. As shown in FIG. 2, the non-slip member 21 can be formed so as to project rectangularly on the surface of the handle 20.

The toothbrush bristles 100 consist of a bundle of a pair of bristles 110 of a first toothbrush having a fine end 111 and bristles 120 of a second toothbrush having a flat end 121, and are composed of FIGS. 1 and 3b. As shown in the above, a plurality of rows of hairs are planted on the entire upper surface of the head 10 along the length direction of the toothbrush body.

Referring to FIG. 3a, the bristles 110 of the first toothbrush are formed thinner toward the end in the length direction and have a sharp fine end 111 at the outer end, and the fine end 111 is a tooth 1. It is possible to remove the food residue caught between the tooth 1 and the tooth 1.

A first embossing 112 (embossing) is formed in a ring shape on the outer peripheral edge of the bristles 110 of the first toothbrush, and such a first embossing 112 is along the length direction of the bristles 110 of the first toothbrush. The plurality of first embossed 112s are formed at a predetermined interval, and the plurality of first embossed 112s are formed with an outer diameter that changes so as to be tapered like the outer surface of the bristles 110 of the first toothbrush, or are the same. It can be formed with the outer diameter of.

The plurality of first embossed 112s formed in this way scratch and remove the food debris inserted between the teeth 1 and not removed by the fine end 111, or remove the food debris on the surface of the tooth 1. It can be removed by scratching. The bristles 110 of the first toothbrush have elastic force due to the first embossing 112, and have a function of being restored to the original shape after brushing the teeth.

Referring to FIG. 3a, the bristles 120 of the second toothbrush are formed in a cylindrical shape having an outer diameter equal to or similar to the outer diameter of the root side of the bristles 110 of the first toothbrush, and have a flat flat end at the outer end. The flat end portion 121 has a portion 121, and the flat end portion 121 scrapes and removes food debris attached to the surface of the tooth 1, and the length of the second toothbrush bristles 120 including the flat end portion 121 is the length of the bristles 110 of the first toothbrush. Form shorter than the length.

Further, a second emboss 122 is formed in an annular shape on the outer peripheral edge of the bristles 120 of the second toothbrush, and such a second emboss 122 is formed along the length direction of the bristles 120 of the second toothbrush. It is desirable that the plurality of second embosses 122 are formed so as to have a predetermined interval, and the plurality of second embossing 122s are formed with the same outer diameter. The bristles 120 of the second toothbrush have elastic force due to the second embossing 122, and have a function of being restored to the original shape after brushing the teeth.

Here, it is more desirable that the first toothbrush bristles 110 and the second toothbrush bristles 120 use fine bristles rather than normal bristles in order not to damage the gums.

The operation of the toothbrush according to the present invention configured as described above will be described in detail as follows with reference to FIGS. 3a to 3c.

With reference to FIG. 3b, a plurality of rows of bristles 100 of the first toothbrush are transplanted to the outside of the head 10, and the user holds the handle and slides the bristles 100 in the front-back or left-right direction of the teeth 1 in the state as shown in FIG. 3c. When polished, the fine end 111 of the bristles 110 of the first toothbrush extrudes or scratches and removes the food debris inserted between the teeth 1 and the teeth 1, and a plurality of first embosses. The 112 can scrape and remove the food debris that is not removed by the fine end 111 in the axial direction, or can scrape and remove the food waste that adheres to the surface of the tooth 1.

At the same time, the flat end portion 121 of the bristles 120 of the second toothbrush scrapes and removes the food debris on the surface of the tooth 1 in the direction orthogonal to the axis, and the second emboss 122 axes the food debris on the surface of the tooth 1. It can be removed by scratching in the direction.

The toothbrush of the present invention not only more efficiently removes food debris on the surface of the tooth 1 by embossing, has elasticity and excellent restoring force, but also has a space between the embossing to prevent bubbles when using toothpaste. The amount of generation can be increased and the feeling of exhilaration can be maintained.

FIG. 4a is a sectional view taken along line AA of FIG. 1 according to another embodiment of the present invention, and FIG. 4b is an enlarged portion of FIG. 1 “B” according to another embodiment of the present invention. FIG. 4c is an enlarged view showing a usage state of the toothbrush according to another embodiment of the present invention, wherein the toothbrush bristles are planted on the outside of one surface of the head 10 and the external toothbrush bristles 200. The bristles 200 of the external toothbrush and the bristles 300 of the internal toothbrush are separated from the bristles 300 of the internal toothbrush planted on the head 100 so as to be arranged inside the bristles 200 of the external toothbrush. It differs from the toothbrush bristles of FIGS. 3a to 3c in that they are formed with different lengths so as to be arranged in a character-shaped cross section, and the differences will be mainly described.

The external toothbrush bristles 200 have substantially the same structure as the toothbrush bristles 100 according to the first embodiment described above, and have a first toothbrush bristles 210 having a fine end portion 211 and a flat end portion 221. It consists of a bundle of a pair of bristles 220 of 2 toothbrushes, and as shown in FIG. 4b, along the left and right left and right end portions (the left and right dotted rectangles in FIG. 4b) corresponding to the outside of the upper surface of the head 10. One or more rows of hair are transplanted.

Further, as shown in FIG. 4a, the first toothbrush bristles 210 and the second toothbrush bristles 220 of the outer toothbrush bristles 200 have a first embossed 212 and a second embossed 212 on the outer peripheral edge thereof, as described above. The embossing 222 of each of the above is formed, the plurality of first embossing 212 is formed with an outer diameter changing so as to be tapered, and the plurality of second embossing 222 is formed with the same outer diameter. Is desirable.

The internal toothbrush bristles 300 have substantially the same structure as the external toothbrush bristles 200, and have a first toothbrush bristles 310 having a fine end 311 and a second toothbrush bristles 320 having a flat end 321. It consists of a bundle consisting of a pair of and, and as shown in FIG. 4b, one row or a plurality of rows along the length direction of the center corresponding to the inside of the upper surface of the head 10 (the rectangular chain line in the center of FIG. 4b). Hair is transplanted. The bristles 300 of the internal toothbrush are shorter than the bristles 200 of the external toothbrush, and as shown in FIG. 4a, the bristles 200 of the external toothbrush and the bristles 300 of the internal toothbrush planted on the upper surface of the head 10 are substantially "V". It is formed by a structure arranged in a "shaped cross section".

Further, as shown in FIG. 4a, the first toothbrush bristles 310 and the second toothbrush bristles 320 of the inner toothbrush bristles 300 also have first embossing 312 and second embossing on the outer peripheral edge thereof, as described above. Each of the embosses 322 is formed, the plurality of first embossed 312s are formed with an outer diameter changing so as to be tapered, and the plurality of second embossed 322s are formed with the same outer diameter. Is desirable.

The operation of the toothbrush according to another embodiment of the present invention configured as described above will be described in detail as follows with reference to FIGS. 4a to 4c.

Referring to FIG. 4b, the bristles 200 of the external toothbrush are flocked in a row or a plurality of rows corresponding to the outside of the head 10, and the bristles 300 of the internal toothbrush are flocked in a row or a plurality of rows corresponding to the inside of the head 10. Will be done.

FIG. 4c is a diagram exemplifying a state in which the toothbrush of the present invention is in close proximity for brushing one surface of the tooth 1 to which the orthodontic appliance 3 is mounted, and as shown in FIG. 4c, is a diagram of an external toothbrush. The bristles 200 are positioned to brush one side of the tooth 1, and the bristles 300 of the internal toothbrush are positioned to brush the orthodontic appliance 3.

When the user holds the handle and slides the tooth 1 in the front-back or left-right direction while polishing in the state as shown in FIG. 4c, the fine end 211 of the first toothbrush bristles 210 of the external toothbrush bristles 200 becomes the tooth 1. The food debris inserted between the tooth 1 and the tooth 1 is pushed out or scraped off, and the first embossing 212 axially scrapes and removes the food waste not removed by the fine end 211, or the tooth 1 It can be removed by scratching the food residue on the surface of the tooth.

At the same time, the flat end portion 221 of the bristles 220 of the second toothbrush of the bristles 200 of the external toothbrush scrapes and removes the food debris attached to the surface of the teeth 1 in the direction orthogonal to the axis, and the second embossing 222 is the teeth 1 The food debris on the surface of the tooth can be scraped off in the axial direction.

On the other hand, the fine end 311 of the first toothbrush bristles 310 of the internal toothbrush bristles 300 extrudes or scratches and removes food debris sandwiched between the outer surface of the orthodontic appliance 3 and the teeth 1. The first embossing 312 can axially scrape and remove the food debris that is not removed by the fine end portion 311 or axially scrape and remove the food waste that is attached to the surface of the orthodontic appliance 3.

At the same time, the flat end portion 321 of the second toothbrush bristles 320 of the internal toothbrush bristles 300 scrapes the food debris on the surface of the orthodontic appliance 3 in the direction orthogonal to the axis, and the second embossing 322 removes the food debris. The food debris on the surface of the orthodontic appliance 3 can be scraped off in the axial direction.

As described above, in the toothbrush of the present invention, the ends of the bristles of the outer toothbrush and the bristles of the inner toothbrush planted so as to be perpendicular to the upper surface of the head 10 are formed in a "V" shape, and the enamel wears. And defects such as gum damage and hair loss can be minimized.

The toothbrush of the present invention not only more efficiently removes food debris on the surface of the tooth 1 and the orthodontic appliance 3 by embossing, has elasticity and is excellent in restoring force, but also has the first embossing 212. The space between 312 and the second embossed 222, 222 increases the amount of foam generated when the toothpaste is used, and the refreshing feeling can be further maintained.

FIG. 5 is a perspective view of the toothbrush and an enlarged view of the “C” portion according to another embodiment of the present invention.

As shown in FIG. 5, the toothbrush according to another embodiment of the present invention has a shape in which the ends of the bristles 410 of the plurality of unit toothbrushes are inclined inward and downward, and the bristles are planted on the outside of one surface of the head 10. Molar toothbrush bristles 400 are further included.

Here, it is more desirable that the bristles 400 of the molar toothbrush are bundled in a plurality of rows at the corners of one surface of the head 10 for brushing the molars.

Further, the unit toothbrush bristles 410 of one back toothbrush bristles 400 have a downwardly inclined shape whose ends gradually become lower toward the inside, and the bristles of each back toothbrush formed in a plurality of rows. The 400 also has a shape in which the end portion is inclined downward toward the inside (toothbrush bristles 100 side), which facilitates brushing the back teeth and is also advantageous for cleaning the back teeth.

The bristles 410 of each unit toothbrush of the bristles 400 of the molar toothbrush are, for example, normal bristles having a flat end portion 411 and fine bristles having a fine end portion.

On the other hand, the length of the bristles 400 of each back toothbrush in the bundle form is based on the length of the bristles 100 of the toothbrush composed of a pair of the bristles 110 of the first toothbrush and the bristles 120 of the second toothbrush formed on one side thereof. It is more advantageous in terms of brushing the back teeth to be formed short.

Of course, the bristles 410 of each unit toothbrush have elastic force due to the third embossing 412 formed on the outer peripheral edge, and may have a function of being restored to the original shape after brushing the teeth.

FIG. 6 is a plan view of a toothbrush according to another embodiment of the present invention, which is substantially the same as the example of FIG. 5, except for the implant toothbrush bristles 500 for implant practitioners.

That is, as shown in FIG. 6, a bundle of implant toothbrush bristles 500 composed of a pair of first and second toothbrush bristles is formed in the center of one surface of the head 10 in only two rows in the length direction. Consists of a toothbrush for use exclusively by implant practitioners.

Of course, as in the example of FIG. 5, the bristles 400 of the molar toothbrush are bundled in a plurality of rows at the corner portion of one surface of the head 10.

Here, the bundle of the bristles 400 of the back toothbrush can also be formed in two rows in the length direction along with the bundle of the bristles 500 of the implant toothbrush in the central portion of the head 10.
The embodiments of the present invention described above are merely exemplary, and any person having ordinary knowledge of the technical field to which the present invention belongs may be entitled to various modifications and equivalent other embodiments. You will know well that it is possible.

Therefore, it can be understood that the present invention is not limited to the forms described in the above detailed description.

Therefore, the true technical protection scope of the present invention must be defined by the technical idea of the appended claims. The invention should also be understood to include the spirit of the invention as defined by the appended claims and all variants and equivalents, and alternatives within that scope.

The present invention provides a toothbrush in which a pair of toothbrush bristles consisting of a first toothbrush bristles having a fine end and a second toothbrush bristles having a flat end is formed in a bundle to provide a toothbrush between teeth or between teeth. Not only can the food debris on the surface be removed more efficiently, but even in the case of teeth fitted with orthodontic appliances, the food debris caught between the teeth and the orthodontic appliance can be efficiently removed. It can be used effectively in the field of toothbrushes.

Claims (12)

In a toothbrush consisting of a head and a handle connected to one side of the head
It consists of a bundle of first toothbrush bristles having corresponding fine ends between the teeth and a bunch of second toothbrush bristles having flat ends corresponding to the tooth surface inside the first toothbrush bristles. A toothbrush characterized by containing toothbrush bristles arranged in multiple rows on one surface of the head. The bristles of the toothbrush
An external toothbrush bristles composed of the first toothbrush bristles and the second toothbrush bristles, which are transplanted to the outside of one surface of the head,
It is composed of the bristles of the first toothbrush and the bristles of the second toothbrush, and is separated from the bristles of the internal toothbrush planted on the head so as to be arranged inside the bristles of the outer toothbrush. The toothbrush according to claim 1, wherein the toothbrush is characterized by the above. The toothbrush according to claim 2, wherein the bristles of the external toothbrush and the bristles of the internal toothbrush are formed in different lengths so as to be arranged in a "V" -shaped cross section. 1. The first aspect of the present invention is that the ends of the bristles of the plurality of unit toothbrushes form a bundle that is inclined downward inward, and further include the bristles of the back toothbrush that are transplanted in a plurality of rows on the outside of one surface of the head. Toothbrush described in. The toothbrush according to claim 4, wherein the bristles of the back toothbrush are normal bristles or fine bristles, and the bristles of the toothbrush are fine bristles. The toothbrush according to claim 5, wherein a plurality of rows of bristles of the molar toothbrush are formed in a bundle at a corner portion of one surface of the head. The toothbrush according to claim 1 or 2, wherein the bristles of the first toothbrush are formed in a tapered shape having an outer diameter narrowing toward the outer end portion. The toothbrush according to claim 1 or 2, wherein the length of the bristles of the second toothbrush including the flat end portion is formed shorter than the length of the bristles of the first toothbrush. The toothbrush according to claim 1 or 2, wherein embossing is formed on the outer peripheral edge of the bristles of the first toothbrush and the bristles of the second toothbrush. The toothbrush according to claim 4, wherein an emboss is formed on the outer peripheral edge of the bristles of the molar toothbrush. The toothbrush according to claim 4, wherein each of the bristles of the back toothbrush has a flat end portion at the upper end thereof. The bristles of the toothbrush and the bristles of the back toothbrush, which consist of a pair of bristles of the first toothbrush and bristles of the second toothbrush, are placed in only two rows in the length direction at the center of one surface of the head. The toothbrush according to claim 4 or 5, wherein the toothbrush is formed.

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