JP2017192682A - toothbrush - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a toothbrush which can safely and surely perform cleaning of periodontal pockets and health care of gum with a simple operation.SOLUTION: Bristles 31 arranged in a brush head part 21 are made to bend in one direction in view from the axial direction, with the bristle tips of the brush made to approach to periodontal pockets 13. In the instance, as the entire bristles are bent, the brush itself is guided with teeth and elastically deformed to enter the periodontal pockets even if a user fails to accurately operate the angle of the brush. As a result, plaque can be efficiently scraped out, making the periodontal health care safely performed daily.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a toothbrush, and more particularly to a toothbrush suitable for periodontal pocket cleaning and periodontal health management including gingiva for preventing periodontal disease.

In order to prevent periodontal disease, it is necessary to scrape plaque from the periodontal pocket and to brush the area around the periodontal pocket appropriately.
As a tool for cleaning the periodontal pocket, for example, a cleaning tool disclosed in Patent Document 1 is known. In this case, the tip of a curved bar-shaped cleaning tool is inserted into a periodontal pocket, and the plaque is removed by microvibrating it with an electric mechanism.
On the other hand, as a toothbrush that can be used for manual periodontal pocket cleaning, there has been proposed one in which fibers serving as a brush are radially planted as shown in Patent Document 2. According to this toothbrush, since the brush is radial, the tooth surface and periodontal pocket are effectively cleaned by simple back-and-forth movement from any insertion angle without being aware of the exact contact angle with the tooth surface of the brush. It is possible.

  JP 2001-334605 A   International Publication WO2001 / 137314

However, according to the cleaning tool disclosed in Patent Document 1, since the cleaning tool is a single rod and the periodontal pocket is locally cleaned, it takes time to clean the whole and the effect of polishing. Therefore, the user himself / herself is not suitable for routine cleaning of periodontal pockets and periodontal health management. Further, since a mechanism for causing the cleaning tool to vibrate slightly is required, it becomes expensive.
Moreover, in the toothbrush shown by patent document 2, since the front-end | tip part of the brush planted radially has drawn the curved surface, the angle of the toothbrush at the time of cleaning becomes unstable, and a hair tip is stably attached to a periodontal pocket. Difficult to act. In addition, since the brush tip is opened radially, it is difficult to ensure the density of the hair tips that hit the gums and periodontal pockets during brushing, and the effect of brushing necessary for cleaning the periodontal pockets is limited.

1st invention is a toothbrush characterized by the hair | bristle bundle arrange | positioned in a brush head curving in one direction seeing from an axial direction.
A second invention is a toothbrush characterized in that the hair bundle arranged on the brush head is composed of a plurality of rows of hair bundles curved in two symmetrical directions when viewed from the axial direction.
According to a third invention, in each of the above inventions, the grip portion having a brush head at one end has a support surface with which a user's thumb is in contact, and the hair bundle is based on the support surface when viewed in the axial direction. As described above, the toothbrush is characterized in that the front end of the hair bundle is provided at a predetermined angle.
According to a fourth aspect of the present invention, there is provided a support surface on which a hair bundle disposed on the brush head is curved in one direction when viewed from the axial direction, and the grip portion having the brush head at one end is in contact with a user's thumb The bristle bundle is a toothbrush characterized in that the bristle bundle tip is provided so as to form a predetermined angle with respect to the support surface as viewed in the axial direction.
According to a fifth aspect of the present invention, the hair bundle disposed on the brush head is composed of a plurality of rows of hair bundles curved in two directions symmetric when viewed from the axial direction, and the brush head is provided at one end. The hair bundle is provided such that the front end of the hair bundle forms a predetermined angle with respect to the support surface when viewed from the axial direction. The toothbrush characterized by the above-mentioned.
A sixth invention is a toothbrush characterized in that, in each of the above inventions, the bristles have ultrafine bristles at the center and round bristles around the bristles.

  According to the present invention, for example, a commonly used brush can be used without being aware of the operation method for cleaning the periodontal pocket by the bath method or the like by curving the hair bundle portion forming the brush. Even with the usual brushing operation (scrubbing method) that reciprocates horizontally and finely with respect to the teeth, the tip of the hair can be more reliably approached to the periodontal pocket, and the entire hair bundle is bent at that time. Therefore, even if the user does not accurately control the angle of the brush, the brush itself can be elastically deformed and enter the periodontal pocket, and the plaque can be efficiently scraped, and at the same time, the surrounding brushing is effective. Can be done automatically. In addition, since the hair bundle is curved and causes an appropriate amount of bending, the hair tip portion that has entered the periodontal pocket does not cause excessive irritation to the gingiva, and can be safely and routinely brushed.

  The front view of the head of the toothbrush which concerns on 1st Embodiment of this invention.   The cross-sectional view of the head of the toothbrush according to the first embodiment of the present invention.   1st explanatory drawing which shows the use condition of the said toothbrush.   2nd explanatory drawing which shows the use condition of the said toothbrush.   The front view which shows the holding | maintenance state of the said toothbrush.   The right view which shows the holding | maintenance state of the said toothbrush.   The cross-sectional view of the toothbrush head part for showing the angle of the hair | bristle bundle front-end | tip part of the said toothbrush.   Explanatory drawing for showing the example of application of the bristle bundle of the toothbrush.   The front view of the head of the toothbrush which concerns on 2nd Embodiment of this invention.   The cross-sectional view of the head of the toothbrush according to the second embodiment of the present invention.

  Hereinafter, several embodiments of the present invention will be described with reference to the drawings. Parts corresponding to each other in the drawings and the embodiments will be described with the same reference numerals.

In FIG. 1 or FIG. 2, the head 21 of the toothbrush 20 has six rows in the axial direction, three rows in the width direction, and convenient eighteen hair bundles 31 are planted at equal intervals. The brush part 30 is formed.
Each hair bundle 31 is formed by bundling a plurality of nylon brush wires, for example, in a substantially cylindrical shape. As shown in FIG. 2, each bristle bundle 31 has its base portion planted at a substantially right angle with respect to the proximal end surface of the toothbrush head portion 21, but in this case as viewed from the axial direction toward the distal end, in this case Curved downward.

3 and 4 show how the toothbrush is used. In order to use this toothbrush, the toothbrush head 21 is first set up so that the surface on which the hair bundle 31 is planted faces the user as shown in FIG. Next, the distal end portion of the hair bundle 31 is moved so as to lightly touch the front surface of the lower jaw tooth 12 (in this figure, the central or side incisors are shown). As a result, the bristles 31 that are in contact with the teeth 12 slightly above the opening of the periodontal pocket 13 are naturally bent downward, and the distal end of the hair bundle 31 enters the periodontal pocket 13. At this time, since the hair bundle 31 enters while curving and bending, the tip of the hair can be reliably reached to the deep part of the periodontal pocket 13 at an appropriate angle. Therefore, the plaque accumulated in the periodontal pocket 13 can be surely removed by performing an operation of finely moving the toothbrush left and right in this state. Further, since the curved hair bundle 13 is appropriately bent to release the force, there is no possibility of excessively stimulating the tissue of the periodontal pocket 13 and the surrounding gingiva 11.
In this way, the periodontal pocket can be cleaned with a simple operation, and since there is little irritation to the gingiva, periodontal health management can be reliably performed as a routine brushing routine. In addition, since the other hair bundles 31 that have not entered the periodontal pocket 13 also come into contact with the teeth 12 and the gingiva 11 with an appropriate elasticity, the boundary between the tooth surface and the teeth and the gingiva can be simultaneously cleaned.

  Next, the structure which can control the angle of a toothbrush more appropriately at the time of use is demonstrated, referring FIG. 5 and 6 show a general method of holding the toothbrush 20 by a right-handed person. As illustrated, the toothbrush 20 is held such that the grip 22 is sandwiched between the belly of the right thumb and the side of the pointing finger. Now, as shown in FIG. 6, a reference line L is assumed along the support surface on which the thumb of the grip portion 22 comes into contact. On the other hand, as shown in FIG. 7, when the hair bundle 31 is provided on the toothbrush head 21, the bristles have an angle A with the direction of the hair tip with respect to the reference line L when the toothbrush is held. The bundle 31 is bent. Thus, when the toothbrush 20 is held as shown in FIG. 5, the orientation of the hair bundle 31 is natural even if the user is not aware of the angle of the toothbrush head 21 or the brush part 30. Since the state shown in FIG. 4 is obtained, appropriate brushing can be reliably performed. In addition, by setting the angle A within 30 to 60 degrees, even if the toothbrush head 21 does not accurately face the user, the tip of the hair bundle is almost surely introduced into the periodontal pocket 13. can do.

  FIG. 8 shows a configuration example of the bristle forming the hair bundle 31. (A) of a figure applies the very fine hair which sharpened the front-end | tip part of the wire rod in the taper shape. By applying such ultrafine hair, even when the periodontal pocket is shallow, the hair tip can be reliably approached to the inside. In this example, the tip of each wire is aligned at the same height, but (b) in the figure shows the amount of protrusion of each wire so that it is higher at the center of the hair bundle consisting of ultrafine hairs. It is set. By doing in this way, more hair ends can be made to approach with respect to a periodontal pocket, and the plaque removal effect can be heightened. (C) of a figure applies the round hair which processed the front-end | tip part into the hemispherical shape instead of a very fine hair about the wire of the outer peripheral side with few protrusion amounts. Since round hair has higher rigidity at the tip than ultrafine hair, it can enhance the brushing effect on the surrounding tooth surfaces while ensuring the above-mentioned periodontal pocket cleaning effect by the ultrafine hair at the center. it can.

  9 and 10 show another embodiment of the toothbrush according to the present invention. In the embodiment shown in FIG. 1 and FIG. 2, the bristles 31 of the brush portion 30 are provided in such a manner that they are curved only in one direction (downward) when viewed from the axial direction. Needs to change toothbrushes. On the other hand, in this embodiment, as shown in the figure, the 3 × 6 rows of hair bundles 31 forming the brush portion 30 are divided into two groups of three rows on the tip side of the head 21 and three rows on the base side. In other words, the directions of bending in two symmetrical directions are set so that the first group on the tip side faces downward and the first group on the base side faces upward. With this configuration, the teeth of the lower jaw can be brushed without changing the toothbrush 20 with the bristles 31 on the distal end side, and the teeth of the upper jaw can be bristles 31 on the base side. In this embodiment, the brush 30 is divided into two groups, that is, the tip side and the base side. However, the upward hair bundle 31 and the downward hair bundle 31 may be alternately arranged along the axial direction.

11 Gingiva 12 Anterior teeth (Middle or lateral incisors of the lower jaw)
13 Periodontal pocket 20 Toothbrush 21 Head 22 Grip part 30 Brush part 31 Hair bundle L Reference line of the portion where the thumb touches A Angle formed by the reference line and the tip of the hair bundle

Claims (6)

  A toothbrush characterized in that the bristles arranged on the brush head are curved in one direction when viewed from the axial direction.   A toothbrush characterized in that the bristles arranged on the brush head are composed of a plurality of rows of bristles that are curved in two symmetrical directions when viewed from the axial direction. The grip portion having the brush head at one end has a support surface with which the user's thumb is in contact,
The hair bundle is provided so that a hair bundle tip portion forms a predetermined angle with respect to the support surface as viewed in the axial direction. The toothbrush described. The hair bundle disposed on the brush head is curved in one direction when viewed from the axial direction,
And the grip part provided with the brush head at one end has a support surface with which the user's thumb is in contact,
The toothbrush is characterized in that the bristle bundle is provided such that the front end of the bristle bundle forms a predetermined angle with respect to the support surface when viewed from the axial direction. The hair bundle disposed on the brush head is composed of a plurality of rows of hair bundles curved in two symmetrical directions when viewed from the axial direction,
And the grip part provided with the brush head at one end has a support surface with which the user's thumb is in contact,
The toothbrush is characterized in that the bristle bundle is provided such that the front end of the bristle bundle forms a predetermined angle with respect to the support surface when viewed from the axial direction.   The toothbrush according to any one of claims 1 to 5, wherein the bristles are formed by arranging ultrafine bristles at the center and round bristles around the bristles.

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