JP2017086998A - Periodontal pocket cleaning brush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a periodontal pocket cleaning brush which can be easily used.SOLUTION: A periodontal pocket cleaning brush 1 is used for cleaning a periodontal pocket, and comprises a handle part 10, a core part 20, and a brush part 30. The core part 20 has a linear-shape and extends from the handle part 10. The core part 20 has a curve part 22. The curve part 22 is a part where the core part 20 extends in a curve-state. The brush part 30 is formed of plural filaments extending in a direction orthogonal to an extension direction of the core part 20 from the core part 20.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a periodontal pocket cleaning brush used for cleaning a periodontal pocket.

  As a conventional brush for periodontal pocket cleaning, there exists a thing described in patent document 1, for example. The periodontal pocket cleaning brush described in the document includes a rod-shaped handle portion, a head portion provided at the tip of the handle portion, and a brush portion including a plurality of hair bundles planted in the head portion. The plurality of hair bundles are arranged in two rows along the longitudinal direction of the handle. The hair bundles in each row are inclined so as to approach the hair bundles in the other row. The two rows of hair bundles are pressed against each other at the tips of the hair bundles.

JP 2017-23270 A

  In the above-mentioned periodontal pocket cleaning brush, ridge lines connecting the tips of a plurality of hair bundles are aligned along the longitudinal direction of the handle. For this reason, it is difficult to put the tips of the hair bundles in the periodontal pocket unless the handle is formed at an angle such that the ridge line is parallel to the site to be cleaned. Limiting the angle with the handle in this way is one factor that makes the conventional periodontal pocket cleaning brush less convenient.

  The present invention has been made in view of the above problems, and an object thereof is to provide an easy-to-use periodontal pocket cleaning brush.

  A periodontal pocket cleaning brush according to the present invention is a periodontal pocket cleaning brush used for cleaning a periodontal pocket, and includes a handle part, a linear core part extending from the handle part, and the core part. A brush portion comprising a plurality of filaments extending in a direction intersecting with the extending direction of the core portion, and the core portion has a curved portion that is a portion in which the core portion extends in a curved shape. .

  In this periodontal pocket cleaning brush, the brush portion is constituted by a plurality of filaments extending from the core portion. The core part has a curved part. That is, at least a part of the core part is curved. In this case, compared to the case where the entire core portion is linear, it is easy to put the tip of the filament in the periodontal pocket even if the angle with the handle portion is changed. Thus, the usability of the periodontal pocket cleaning brush is improved by increasing the degree of freedom with respect to the angle with the handle.

  According to the present invention, an easy-to-use periodontal pocket cleaning brush is realized.

It is a front view which shows 1st Embodiment of the brush for periodontal pocket cleaning by this invention. FIG. 5 is a diagram for explaining a maximum width of a core part 20. It is the figure which looked at the brush part 30 from the extension direction of the core part 20. FIG. It is a front view which shows 2nd Embodiment of the brush for periodontal pocket cleaning by this invention. It is a front view which shows 3rd Embodiment of the brush for periodontal pocket cleaning by this invention. It is a figure for demonstrating one modification of the curve part. It is a figure for demonstrating the other modification of the curved part. It is a figure for demonstrating the other modification of the curved part. It is a figure for demonstrating the modification of the pattern part. It is a figure for demonstrating the other modification of the pattern part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In the description of the drawings, the same reference numerals are assigned to the same elements, and duplicate descriptions are omitted.
(First embodiment)

  FIG. 1 is a front view showing a first embodiment of a periodontal pocket cleaning brush according to the present invention. The periodontal pocket cleaning brush 1 is a brush used for cleaning a periodontal pocket, and includes a handle part 10, a core part 20, and a brush part 30. The handle portion 10 is a portion that the user of the periodontal pocket cleaning brush 1 has by hand. The handle 10 has an elongated shape. In the present embodiment, the entire handle portion 10 is straight. As a material of the handle 10, for example, a plastic such as polyethylene can be used.

  The core portion 20 has a linear shape and extends from the handle portion 10. The core 20 has a root 20 a connected to the tip 10 a of the handle 10. The core part 20 has a curved part 22. The curved portion 22 is a portion where the core portion 20 extends in a curved shape. The curved portion 22 is preferably elastically deformable. The curved portion 22 includes a curved portion 221 (first curved portion) and a curved portion 222 (second curved portion).

  The curved portion 221 exists on one side (first side) of the extension line L1 of the tip 10a of the handle portion 10. The curved portion 221 extends away from the extension line L1. Therefore, the tip of the curved portion 221 exists at a position farthest from the extension line L1 on the first side. The tip of the curved portion 221 is a free end. Here, that the tip is a free end means that the tip is not connected anywhere. When the direction away from the tip 10a along the extension line L1 (the direction of the arrow in FIG. 1) is upward, the curved portion 221 draws a downwardly convex curve. That is, the entire curved portion 221 draws a curved line that swells downward.

  The curved portion 222 exists on the other side (second side) of the extension line L1. The curved portion 222 extends away from the extension line L1. Therefore, the distal end of the curved portion 222 exists at a position farthest from the extension line L1 on the second side. The tip of the curved portion 222 is a free end. The curved portion 222 draws a downward convex curve. That is, the entire curved part 222 draws a curved line that swells downward.

  The rear end of the curved portion 221 and the rear end of the curved portion 222 are connected to each other on the extension line L1. And the curve part 221 and the curve part 222 draw one continuous curve. The curve drawn by the curved line part 221 and the curved line part 222 is line symmetric with respect to the extension line L1. In this embodiment, the curve is U-shaped. The core part 20 includes only a curved part 221 and a curved part 222.

  The core part 20 has a straight part 24 in addition to the curved part 22. The straight part 24 is a part where the core part 20 extends linearly. The root 20 a of the core part 20 constitutes a straight line part 24. Therefore, the rear end of the straight part 24 coincides with the root 20 a of the core part 20. The entire straight portion 24 exists on the extension line L1. The front end of the straight line portion 24 is connected to both the rear end of the curved portion 221 and the rear end of the curved portion 222. Thereby, the core part 20 is branched into a curved part 221 and a curved part 222 at the tip of the straight part 24.

  The core part 20 is composed of only a curved part 22 and a straight part 24. Therefore, the distal end of the curved portion 221 and the distal end of the curved portion 222 coincide with the distal end 20 b of the core portion 20. That is, the core part 20 has the two front-end | tips 20b. The length of the curved portion 22 (the sum of the length of the curved portion 221 and the length of the curved portion 222) is preferably 50% or more of the entire length of the core portion 20, and more preferably 80% or more. preferable. The thickness of the core part 20 is about 0.1-1 mm, for example.

  The maximum width of the core part 20 is preferably 3 mm or more and 6 mm or less. Here, as shown in FIG. 2, the maximum width of the core portion 20 is a distance d1 between the two planes P1 and P2 when the core portion 20 is sandwiched from both sides by two planes P1 and P2 parallel to the extension line L1. Is defined as The plane P1 is in contact with the curved portion 221 (the tip thereof). The plane P2 is in contact with the curved portion 222 (the tip thereof). The plane P1 and the plane P2 are parallel to each other. Each of the planes P1 and P2 is perpendicular to a plane including a curve drawn by the curved portion 221 and the curved portion 222 (a plane parallel to the paper surface of FIGS. 1 and 2).

  The core part 20 can be formed as follows, for example. First, two wires made of a metal such as stainless steel are prepared. Next, each wire is folded in half and twisted together. Subsequently, a part of the two wires (a part including the end on the opposite side of the folded part) is twisted together. The portion where the two wires are twisted together in this way constitutes a straight portion 24. Further, the remaining part of the two wires (the part other than the part twisted together) constitutes the curved part 22. Specifically, the remaining portion of one wire is formed into a curved portion by forming a curved portion 221, and the remaining portion of the other wire is formed into a curved portion to form a curved portion 222. Thereby, the core part 20 which consists of the curve part 22 and the linear part 24 is obtained.

  Returning to FIG. 1, the brush portion 30 includes a plurality of filaments extending from the core portion 20 in a direction intersecting with the extending direction of the core portion 20. In the present embodiment, each filament extends in a direction substantially orthogonal to the extending direction of the core portion 20. Here, the extending direction of the core portion 20 is defined as the extending direction of the straight portion 24 in the straight portion 24 and the tangential direction of the curved portion 22 in the curved portion 22. In the following description, “a plurality of filaments” refers to all the filaments constituting the brush portion 30 unless otherwise specified.

  The plurality of filaments are fixed to the core portion 20. Such fixing can be performed, for example, by sandwiching a plurality of filaments between the wires that are folded in half and twisted together. The filament is provided only in the curved portion 22 of the curved portion 22 and the straight portion 24. That is, while the curved portion 22 is provided with a filament, the linear portion 24 is not provided with a filament. The plurality of filaments are scattered over substantially the entire curved portion 22.

  These filaments enter the periodontal pocket and play a role in scraping away eating candy and plaque. The thickness of each filament is, for example, about 1.0 to 5.0 mil (1 mil = 0.0254 mm). As a material of the brush part 30, for example, nylon can be used.

  FIG. 3 is a view of the brush portion 30 as viewed from the extending direction of the core portion 20. As can be seen from the figure, the plurality of filaments spread radially from the core portion 20.

  The effect of the periodontal pocket cleaning brush 1 will be described. In the periodontal pocket cleaning brush 1, the brush portion 30 is constituted by a plurality of filaments extending from the core portion 20. The core portion 20 has a curved portion 22. That is, at least a part of the core part 20 has a curved shape. In this case, compared to the case where the entire core portion 20 is linear, it is easy to put the tip of the filament in the periodontal pocket even if the angle with the handle portion 10 is changed. Thus, the usability of the periodontal pocket cleaning brush 1 is improved by increasing the degree of freedom with respect to the angle having the handle 10. Therefore, the easy-to-use periodontal pocket cleaning brush 1 is realized.

  In order to make it easier to put the end of the filament in the periodontal pocket, it is necessary to have the handle 10 at an angle such that the extending direction of the core 20 is parallel to the site to be cleaned. In this regard, if the entire core portion 20 is linear, the extending direction of the core portion 20 is constant. Therefore, if the handle portion 10 is not provided at a specific angle, the filament in the periodontal pocket It becomes difficult to insert the tip. On the other hand, when the core part 20 has the curved part 22, the extending direction of the core part 20 continuously changes in the curved part 22. In other words, the extending direction of the core part 20 has a certain width. Therefore, even if the angle with the handle 10 is changed within a certain range, the extending direction of the core 20 can be maintained parallel to the site to be cleaned. Therefore, it is easy to put the tip of the filament in the periodontal pocket even if the angle with the handle 10 is changed.

  By the way, cleaning of the periodontal pocket can also be performed using a toothbrush. However, since the toothbrush is mainly intended for brushing teeth, the brush part is also designed assuming that the teeth are brushed. For this reason, when the brush part of the toothbrush is placed in the periodontal pocket at the time of cleaning, it often happens that the user feels uncomfortable or painful. Thus, the toothbrush is not suitable for cleaning the periodontal pocket. In this respect, the periodontal pocket cleaning brush 1 is specialized for cleaning the periodontal pocket, and therefore the brush portion 30 can also have specifications suitable for cleaning the periodontal pocket. For example, discomfort and pain when cleaning the periodontal pocket can be alleviated by making the filament constituting the brush portion 30 softer or denser than the filament of a general toothbrush.

  In order to increase the degree of freedom with respect to the angle having the handle portion 10, it is advantageous that the length of the curved portion 22 is large. From such a viewpoint, the length of the curved portion 22 is preferably 50% or more of the entire length of the core portion 20, and more preferably 80% or more.

  The core part 20 has a straight part 24 in addition to the curved part 22. Thus, when the core part 20 consists of both the curve part 22 and the linear part 24, compared with the case where it consists only of the curve part 22, the design freedom degree of the core part 20 can be raised.

  The root 20 a of the core part 20 constitutes a straight line part 24. The root 20 a of the core part 20 is a part connected to the handle part 10. When this connection part is linear, it becomes easy to connect the handle | pattern part 10 with respect to the core part 20 compared with the case where it is curvilinear. For this reason, manufacture of the periodontal pocket cleaning brush 1 becomes easy.

  The curved line portion 22 exists on one side of the extension line L1 and includes a curved line portion 221 that draws a downwardly convex curve. In this case, the inner side of the curved portion 221 faces the site to be cleaned. As a result, the curved surface of the portion to be cleaned and the curve drawn by the curved portion 221 are inflated to the same side, so that the brush portion 30 (particularly the filament provided on the curved portion 221 with respect to the cleaning target portion). ) Is easier to fit.

  The tip of the curved portion 221 is a free end. Thereby, it becomes possible to insert the front-end | tip of the curved part 221 between teeth. By inserting the tip of the curved portion 221 between the teeth in this way, a periodontal pocket (tooth surface periodontal pocket) on the front or back surface of the tooth and a periodontal pocket (interdental periodontal pocket) between the teeth. Can be cleaned at the same time.

  The curved portion 22 includes a curved portion 222 that exists on the other side of the extension line L1 and draws a downwardly convex curve. In this case, the inside of the curved portion 222 faces the site to be cleaned. As a result, the curved surface of the site to be cleaned and the curve drawn by the curved portion 222 are inflated to the same side, so that the brush portion 30 (particularly the filament provided on the curved portion 222 with respect to the site to be cleaned) ) Is easier to fit.

  The tip of the curved portion 222 is a free end. Thereby, it becomes possible to insert the front-end | tip of the curved part 222 between teeth. In this way, by inserting the tip of the curved portion 222 between the teeth, the tooth surface periodontal pocket and the interdental periodontal pocket can be simultaneously cleaned.

  In addition, since the distal ends of both the curved portion 221 and the curved portion 222 are free ends, these distal ends can be simultaneously inserted between the two teeth. Thereby, a tooth surface periodontal pocket and two interdental periodontal pockets can be cleaned simultaneously.

  When the maximum width of the core part is 3 mm or more and 6 mm or less, it is easy to insert the tips of the curved part 221 and the curved part 222 between the teeth on both sides of one tooth at the same time. Thus, by simultaneously inserting the tips of the curved portion 221 and the curved portion 222 between the teeth on both sides of one tooth, the tooth surface periodontal pocket and the interdental periodontal pocket on both sides can be simultaneously formed. Can be cleaned.

  The curved part 221 and the curved part 222 draw one continuous curve. As a result, a wide range of parts to be cleaned can be simultaneously cleaned.

  The curve drawn by the curved line part 221 and the curved line part 222 is line symmetric with respect to the extension line L1. Thereby, the geometric symmetry of the core part 20 becomes high. Thus, by improving the symmetry of the core part 20, the appearance of the core part 20, and thus the periodontal pocket cleaning brush 1, can be improved.

When the curved portion 22 is elastically deformable, when the curved portion 22 is pressed against the site to be cleaned, the curved portion 22 can be deformed according to the shape of the site. Thereby, it becomes easy to make the brush part 30 fit further with respect to the site | part to be cleaned.
(Second Embodiment)

  FIG. 4 is a front view showing a second embodiment of a periodontal pocket cleaning brush according to the present invention. The periodontal pocket cleaning brush 2 is a brush used for cleaning the periodontal pocket, and includes a handle portion 10, a core portion 20, and a brush portion 30. The structure of the handle | steering-wheel part 10 and the brush part 30 is as having demonstrated 1st Embodiment.

  The core part 20 has a curved part 22 and a straight part 24. The curved portion 22 includes a curved portion 223 (third curved portion) in addition to the curved portion 221 and the curved portion 222. The curved part 223 draws a convex curve. That is, the entire curved part 223 draws a curved line that swells upward. One end of the curved portion 223 is connected to the curved portion 221. Further, the other end of the curved portion 223 is connected to the curved portion 222. Specifically, the curved portion 223 has one end connected to the tip of the curved portion 221 and the other end connected to the tip of the curved portion 222. Therefore, in this embodiment, neither the tip of the curved portion 221 nor the tip of the curved portion 222 is a free end.

  The curved portion 221, the curved portion 222, and the curved portion 223 depict one closed curve. The curve drawn by the curve part 221, the curve part 222, and the curve part 223 is line symmetric with respect to the extension line L1. The curve has an elliptical shape. The core part 20 includes only a curved part 221, a curved part 222, and a curved part 223. In the present embodiment, the core portion 20 does not have a tip. The other structure of the core part 20 is as having demonstrated in 1st Embodiment.

  The effect of the periodontal pocket cleaning brush 2 will be described. The curved portion 22 includes a curved portion 223 that draws a convex curve upward. In this case, the outer side of the curved portion 223 faces the site to be cleaned. That is, the swollen side of the site to be cleaned and the swollen side of the curved portion 223 face each other. Thereby, even if the angle with the handle 10 is greatly changed, the tip of the filament is easily put in the periodontal pocket. For this reason, the freedom degree about the angle with the handle | pattern part 10 can be raised further.

  The curved portion 223 has one end connected to the curved portion 221 and the other end connected to the curved portion 222. Thereby, at least one part of the curve part 22 becomes cyclic | annular. When such an annular portion is pressed against the site to be cleaned, a cushion effect is obtained, so that it is difficult to damage the gums. In particular, if the curved portion 22 can be elastically deformed, the cushion effect can be enhanced.

  The curved portion 223 has one end connected to the tip of the curved portion 221 and the other end connected to the tip of the curved portion 222. Thereby, since the whole curve part 22 becomes cyclic | annular, even if it presses any part of the curve part 22 against a cleaning object site | part, the above-mentioned cushion effect can be acquired.

The curve drawn by the curve part 221, the curve part 222, and the curve part 223 is line symmetric with respect to the extension line L1. Thereby, the geometric symmetry of the core part 20 becomes high. Thus, by improving the symmetry of the core part 20, the aesthetics of the core part 20, and thus the periodontal pocket cleaning brush 2, can be improved. Other effects of the periodontal pocket cleaning brush 2 are the same as those of the periodontal pocket cleaning brush 1.
(Third embodiment)

  FIG. 5 is a front view showing a third embodiment of a periodontal pocket cleaning brush according to the present invention. The periodontal pocket cleaning brush 3 is a brush used for cleaning the periodontal pocket, and includes a handle part 10, a core part 20, and a brush part 30. The structure of the handle | steering-wheel part 10 and the brush part 30 is as having demonstrated 1st Embodiment.

  The core part 20 has a curved part 22 and a straight part 24. The curved portion 22 includes a curved portion 221, a curved portion 222, and a curved portion 223. In the present embodiment, the curved portion 223 has one end connected to the middle of the curved portion 221 and the other end connected to the middle of the curved portion 222. Here, the middle of the curved portion 221 refers to a portion other than the front end or the rear end of the curved portion 221. The same applies to the middle of the curved portion 222. The tip of the curved portion 221 and the tip of the curved portion 222 are free ends. The distal end of the curved portion 221 and the distal end of the curved portion 222 coincide with the distal end 20 b of the core portion 20. The curve drawn by the curve part 221, the curve part 222, and the curve part 223 is line symmetric with respect to the extension line L1. The other structure of the core part 20 is as having demonstrated in 2nd Embodiment.

  The effect of the periodontal pocket cleaning brush 3 will be described. The curved portion 223 has one end connected to the middle of the curved portion 221 and the other end connected to the middle of the curved portion 222. In this case, the front ends of the curved portions 221 and 222 can be free ends while forming an annular portion in a portion of the curved portion 22. Thereby, the front-end | tip of each curve part 221 and 222 can be inserted between teeth simultaneously with pressing an annular part on a tooth surface periodontal pocket. For this reason, it is possible to simultaneously clean a wide range of sites to be cleaned while enjoying the cushion effect of the annular portion. Other effects of the periodontal pocket cleaning brush 3 are the same as those of the periodontal pocket cleaning brush 2.

  The present invention is not limited to the above embodiment, and various modifications can be made. In the said embodiment, the case where the core part 20 was comprised by the curved part 22 and the linear part 24 was illustrated. However, the core part 20 may be constituted only by the curved part 22.

  In the said embodiment, the case where the curve part 22 consists of the curve part 221 and the curve part 222, or the case where the curve part 22 consists of the curve part 221, the curve part 222, and the curve part 223 was illustrated. However, the curved part 22 may consist of only the curved part 221 as shown in FIG. In the figure, the tip of the curved portion 221 is a free end. Similarly, the curved part 22 may consist only of the curved part 222. Or the curve part 22 may consist only of the curve part 223, as shown in FIG.7 and FIG.8. In FIG. 7, the curved portion 223 exists across both sides (first and second sides) of the extension line L1. On the other hand, in FIG. 8, the curved portion 223 exists only on one side of the extension line L1.

  In the said embodiment, the case where the whole handle | pattern part 10 was carrying out the straight line shape was illustrated. However, as shown in FIGS. 9 and 10, the handle portion 10 may be bent near the tip 10a. In FIG. 9, the vicinity of the tip 10a is bent at an angle close to 90 °, and the entire handle 10 is L-shaped. In this case, it becomes easy to clean the periodontal pocket around the back teeth. On the other hand, in FIG. 10, the vicinity of the tip 10a is bent at an angle close to 180 °, and the entire handle 10 is J-shaped. In this case, it becomes easy to clean the periodontal pocket on the back surface of the tooth. In addition, the core part 20 seen from the side is drawn in FIG.

DESCRIPTION OF SYMBOLS 1 Periodontal pocket cleaning brush 2 Periodontal pocket cleaning brush 3 Periodontal pocket cleaning brush 10 Handle 10a Tip 20 Core 20a Root 20b Tip 22 Curved part 221 Curved part (first curve part)
222 Curve part (second curve part)
223 curve part (third curve part)
24 Straight part 30 Brush part

Claims (23)

A periodontal pocket cleaning brush used for cleaning periodontal pockets,
The handle,
A linear core extending from the handle;
A brush portion comprising a plurality of filaments extending in a direction intersecting with the extending direction of the core portion from the core portion,
The said core part has a curved part which is the part which the said core part is extended in the shape of a curve, The brush for periodontal pocket cleaning characterized by the above-mentioned. The periodontal pocket cleaning brush according to claim 1,
The length of the curved portion is a brush for periodontal pocket cleaning that is 50% or more of the total length of the core portion. The periodontal pocket cleaning brush according to claim 2,
The length of the curved portion is a brush for periodontal pocket cleaning that is 80% or more of the total length of the core portion. In the periodontal pocket cleaning brush according to any one of claims 1 to 3,
The said core part is a brush for periodontal pocket cleaning which has the linear part which is the part which the said core part is linearly extended in addition to the said curve part. The periodontal pocket cleaning brush according to claim 4,
The root of the core part is a periodontal pocket cleaning brush constituting the straight part. In the periodontal pocket cleaning brush according to any one of claims 1 to 5,
When the direction away from the tip along the extension line of the tip of the handle is upward,
The said curve part exists in the 1st side of the said extension line, The brush for periodontal pocket cleaning containing the 1st curve part which draws a convex curve below. The periodontal pocket cleaning brush according to claim 6,
The curvilinear portion is a periodontal pocket cleaning brush composed of only the first curvilinear portion. The periodontal pocket cleaning brush according to claim 7,
The tip of the first curved portion is a periodontal pocket cleaning brush that is a free end. The periodontal pocket cleaning brush according to claim 6,
The curvilinear portion is a brush for periodontal pocket cleaning that includes a second curvilinear portion that is present on the second side of the extension line and draws a downward convex curve. The periodontal pocket cleaning brush according to claim 9,
The first and second curved portions are periodontal pocket cleaning brushes that draw one continuous curve. The periodontal pocket cleaning brush according to claim 9 or 10,
The periodontal pocket cleaning brush, wherein the curve drawn by the first and second curved portions is axisymmetric with respect to the extension line. The periodontal pocket cleaning brush according to any one of claims 9 to 11,
The curvilinear portion is a periodontal pocket cleaning brush composed of only the first and second curvilinear portions. The periodontal pocket cleaning brush according to claim 12,
The tip of the first curved portion and the tip of the second curved portion are periodontal pocket cleaning brushes that are free ends. The periodontal pocket cleaning brush according to any one of claims 9 to 11,
The curvilinear portion is a periodontal pocket cleaning brush including a third curvilinear portion that draws a convex curve upward. The periodontal pocket cleaning brush according to claim 14,
The third curved portion is a periodontal pocket cleaning brush having one end connected to the first curved portion and the other end connected to the second curved portion. The periodontal pocket cleaning brush according to claim 15,
The one end of the third curved portion is connected to the tip of the first curved portion;
The other end of the third curved portion is a periodontal pocket cleaning brush connected to the tip of the second curved portion. The periodontal pocket cleaning brush according to claim 16,
The first to third curved portions are periodontal pocket cleaning brushes that draw a single closed curve. The periodontal pocket cleaning brush according to claim 15,
The one end of the third curved portion is connected to the middle of the first curved portion,
The other end of the third curved portion is a periodontal pocket cleaning brush connected to the middle of the second curved portion. The periodontal pocket cleaning brush according to claim 18,
The tip of the first curved portion and the tip of the second curved portion are periodontal pocket cleaning brushes that are free ends. The periodontal pocket cleaning brush according to any one of claims 14 to 19,
The periodontal pocket cleaning brush, wherein the curves drawn by the first to third curved portions are axisymmetric with respect to the extension line. The periodontal pocket cleaning brush according to any one of claims 14 to 20,
The curvilinear portion is a periodontal pocket cleaning brush composed of only the first to third curved portions. The periodontal pocket cleaning brush according to any one of claims 1 to 21,
The curved portion is a periodontal pocket cleaning brush that is elastically deformable. The periodontal pocket cleaning brush according to any one of claims 1 to 22,
The maximum width of the core is a brush for periodontal pocket cleaning that is 3 mm or more and 6 mm or less.

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