Toothbrush auxiliary tool

Abstract

To provide a toothbrush auxiliary tool capable of sufficiently performing cleaning of the teeth and gingival massage in a short time by being fixed to a toothbrush.SOLUTION: A toothbrush auxiliary tool includes at least a pair of rotary brushes having around a rotary shaft, bristles comprising an elastic material extending in a rotary shaft perpendicular direction and / or bristles comprising the elastic material extending obliquely downwardly in the direction. Both rotary brushes are arranged so as to sandwich the teeth and the gum, both rotary brushes are rotated in linking with longitudinal motion along the teeth while sandwiching the teeth and the gum, or are electrically rotated, and the bristles abut on the teeth and the lateral face of the gum and clean the teeth and the gum while being bent. The toothbrush auxiliary tool can sufficiently clean the teeth while having the bristles made of the elastic material by being fixed to a toothbrush and moved longitudinally along the teeth, and can simultaneously perform gingival massage by the bristles made of the elastic material.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a toothbrush aid that, when attached to a toothbrush, enables teeth to be cleaned and gums to be massaged sufficiently in a short time. [Background technology]

[0002] With the rise of civilization, sugar became available for refining, and it became popular as a highly efficient energy source, becoming the main cause of an increase in oral bacterial infections (tooth decay, periodontal disease). In this environment, while the morphology and tissue morphology of human teeth have remained unchanged since prehistoric times, modern humans continue to be exposed to sugar, making the oral cavity susceptible to infection, and areas that cannot be easily brushed more susceptible to tooth decay and periodontal disease. For these "parts that cannot be easily brushed," various techniques for brushing teeth with rod-shaped toothbrushes have been developed from the perspective of public health, and by receiving instruction from dentists tailored to the shape of each individual's teeth and tissues, they have proven effective in preventing "tooth decay" and "periodontal disease." Furthermore, improvements and motorization of rod-shaped toothbrushes, and the use of auxiliary tools other than rod-shaped toothbrushes, such as interdental brushes, have also proven effective in preventing "tooth decay" and "periodontal disease." However, the time and effort required to learn, understand, and practice tooth brushing has ballooned due to the need for individualized instruction, more sophisticated techniques, the use of multiple tools, and rising costs, which has resulted in a decline in "motivation to brush teeth" and a failure to make tooth brushing a habit, leading to health problems. Brushing teeth, which takes time and effort, is also a problem in the nursing care field. Gum massage is a universal measure to prevent periodontal disease. If a toothbrush with normal nylon bristles is used for this gum massage, there is a risk of damaging the gums. In the first place, the appropriate brushing pressure differs depending on the occlusal surface, which requires high pressure, other teeth, the border between the teeth and the gums, and the gums. If these areas are brushed with the same pressure as when cleaning teeth, serious health problems such as wedge-shaped defects of the teeth and gingival detachment may occur, and various brushing techniques are required to prevent such health problems. In addition, rubber brushes with bristles made of rubber such as silicone rubber are often used to avoid damaging the gums. These are a major cause of the time and effort required for tooth brushing, and also lead to an increase in the number of tools used.

[0003] As an example of a toothbrush that shortens the time required for brushing teeth, there is a toothbrush (Patent Document 1) that has two rotating brushes and can clean the front and back of the teeth at the same time. Furthermore, as a toothbrush with multiple brushes, there is a three-sided toothbrush that can brush the bite, front, and back of the teeth at the same time (Patent Document 2). However, with these toothbrushes, it is difficult to sufficiently clean hard-to-clean areas of the teeth by simply moving the toothbrush back and forth along the teeth, and furthermore, the bristles are thought to be made of normal nylon, making it difficult to massage the gums. If you try to massage too hard, you may damage the gums or cheek mucosa. Additionally, rubber toothbrushes with rubber bristles that claim to have both teeth cleaning and massaging effects can be found on the Internet (https: / / sunsmile.co.jp / brand / harbby / ), but it is unclear whether they provide sufficient teeth cleaning effects. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2019-162327 A [Patent Document 2] Publication No. 61-204521 Summary of the Invention [Problem to be solved by the invention]

[0005] To provide a toothbrush auxiliary tool which, when attached to a toothbrush, enables sufficient cleaning of teeth and massaging of gums in a short time without relying on advanced techniques. [Means for solving the problem]

[0006] In order to achieve the above object, the inventors conducted various studies and discovered that by sandwiching the teeth and gums between two rotating brushes with elastic bristles, it is possible to sufficiently clean the teeth, even though the bristles are made of elastic material, and as a result, they succeeded in cleaning the teeth and massaging the gums at the same time, thus arriving at the present invention. That is, the present invention is as follows. 1. At least one pair of rotating brushes is provided, the rotating brushes having bristles made of an elastic material extending perpendicular to the rotating shaft and / or bristles made of an elastic material extending diagonally downward from the rotating shaft, the rotating brushes being arranged so as to sandwich the teeth and gums; The bristles of both rotating brushes are planted to such an extent that they can cover the sides of the teeth and gums at the same time, This toothbrush auxiliary tool has two rotating brushes that rotate in conjunction with back and forth movement along the teeth while pinching the teeth and gums, or rotate electrically, and the bristles brush the teeth and gums while bending in contact with the sides of the teeth and gums. 2. A rotating brush comprising a support part branched in two directions and a rotating shaft having bristles made of an elastic material extending perpendicular to the rotating shaft and / or bristles made of an elastic material extending diagonally downward from the rotating shaft at the tip of each support part, the rotating brushes being arranged so as to sandwich the teeth and gums; The bristles of both rotating brushes are planted to such an extent that they can cover both the sides of the teeth and the sides of the gums at the same time. This toothbrush auxiliary tool has two rotating brushes that rotate in conjunction with back and forth movement along the teeth while pinching the teeth and gums, or rotate electrically, and the bristles brush the teeth and gums while bending in contact with the sides of the teeth and gums. 3. A toothbrush aid according to claim 1 or 2, which has a toothbrush attachment part, This toothbrush auxiliary has an attachment part to which a toothbrush can be attached so that the bristles of the toothbrush come into contact with the upper surfaces of the teeth when the teeth and gums are sandwiched between the bristles of both rotating brushes. 4. A toothbrush with an auxiliary tool comprising the toothbrush auxiliary tool according to 1 or 2, In this toothbrush with auxiliary tool, when the teeth and gums are pinched between the bristles of the two rotating brushes of the auxiliary tool, the bristles of the toothbrush come into contact with the upper surfaces of the teeth. Effect of the Invention

[0007] According to the toothbrush aid of the present invention, by attaching it to a toothbrush and moving it back and forth along the teeth, the teeth can be sufficiently cleaned even though the bristles are made of elastic material. Furthermore, since elastic bristles are originally suitable for gum massaging, gum massaging can be performed at the same time. Therefore, teeth cleaning and gum massaging can be performed sufficiently in a short time without relying on advanced techniques. [Brief description of the drawings]

[0008] [Figure 1] 1 shows one embodiment of a toothbrush aid according to the present invention. [Diagram 2] 1 shows another embodiment of the toothbrush aid of the present invention (attached to a toothbrush). [Diagram 3] 1 shows a front view of a toothbrush aid according to the present invention (corresponding to FIG. 1, the same applies below). [Figure 4] The toothbrush aid is shown being used on the teeth. [Diagram 5] FIG. 2 is a schematic diagram of a rotating brush. [Figure 6] FIG. 1 is a schematic diagram of a rotating brush being applied to teeth. [Figure 7] FIG. 13 is a diagram showing the toothbrush aid with the hinge open. [Figure 8] FIG. 1 is a schematic diagram of a rotating brush in use; [Figure 9] The basic experimental setup is presented. [Figure 10]An experimental device was presented that allows the angle of the toothbrush to be adjusted. [Figure 11] Showing how dirt remains when polishing without using the aid. [Figure 12] When the auxiliary device was attached, it was shown that the dirt had been sufficiently removed. [Figure 13] The rotating brush shows two pairs of auxiliary devices. The top two on the left are the parts without the rotating brush attached. The top right is a view of the auxiliary device from below, and the middle and bottom are the devices attached to the toothbrush. [Figure 14] The image shows an aid with an attachment on the neck side of the handle. The image on the right shows the aid, and the image on the left shows it attached to a toothbrush. [Figure 15] Another embodiment of the aid is shown, with an attachment part on the neck side of the handle. The right shows the aid, and the left shows it attached to a toothbrush. [Figure 16] [Figure 15] shows a pair of rotating brushes for the aid. The right side shows the aid, and the left side shows the aid attached to a toothbrush. [Figure 17] The left image shows a top view of a toothbrush with an assistive device, and the right image shows a diagonal view from above. [Figure 18] This shows a toothbrush with an assistive device that allows the handle and head to rotate freely. The left is a view from diagonally above, the right is a view from diagonally above the opposite side, and the bottom is a view from above. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] The present invention will be described in detail below with reference to the drawings, but the present invention is not limited to the toothbrush aid shown in these drawings.

[0010] 1. About the toothbrush aid of the present invention

[0011] (1) Structure overview The toothbrush aid of the present invention comprises at least a pair of rotating brushes 3 (e.g., Figs. 1 and 2). In Fig. 1, the two rotating brushes constituting a pair are connected to each other by a support part 2 branched in two directions and a handle part 1, and in Fig. 2, the two rotating brushes constituting a pair are connected to each other via an arm part 7. The rotating brush has bristles made of an elastic material extending in the direction perpendicular to the rotating shaft and / or bristles made of an elastic material extending diagonally downward from said direction, around a core part 4 (Fig. 3) through which the rotating shaft passes (Fig. 3). The pair of rotating brushes clamp the teeth and gums to clean the teeth and massage the gums (Fig. 4).

[0012] (2) A pair of rotating brushes The pair of rotating brushes are arranged so as to sandwich the teeth and gums. Furthermore, both rotating brushes are arranged so that the bristles bend when they come into contact with the sides of the teeth and gums. In other words, when in use, the rotating brushes should be arranged with a gap narrower than the narrower of the width between the teeth and gums. The width between the teeth and gums can be determined based on the average values ​​for adult men, adult women, and children. In addition, the spacing needs to be narrow when in use, and a pair of rotating brushes may be arranged with a spacing narrower than the narrower width of the teeth or gums before use, or the rotating brushes may be structured to move closer together when in use. It is more preferable that the spacing between the two rotating brushes is such that they overlap, that is, their bristles overlap (see FIG. 3). Specifically, a rotating brush 3 is placed at each tip of a support part 2 (Fig. 1) that branches in two directions, and the teeth and gums are sandwiched between these two rotating brushes. For example, the rotating brushes may be branched into a rounded V shape with the tips approaching each other so that the teeth and gums can be sandwiched between them (Fig. 1). A pair of rotating brushes may also be connected by an arm part 7 (Fig. 2) so that the teeth and gums can be sandwiched between them. In this case, it is more preferable that the arms have a rounded shape and that the surfaces are made of a soft material so that the arms do not damage the cheek mucosa.

[0013] (3) Rotating brush (I) Structure of the rotating brush and how the bristles grow The rotating brush 3 (Fig. 3) has bristles made of an elastic material extending from a core 4 in a direction perpendicular to the axis of rotation and / or bristles 5 made of an elastic material extending diagonally downward from the same direction, around the axis of rotation (Fig. 3 shows an example in which only bristles extend diagonally downward). There are no particular limitations on the shape of the core, but a right circular cylinder or a tapered bullet shape (Fig. 5) is more preferable, and a bullet shape is particularly preferable. If the core is bullet-shaped, the tapered part will conform to the gums, improving the cleaning effect (Fig. 6, top). Furthermore, if an elastic material is used for the core, for example by coating the core with an elastic material and making the outer part 16 (Fig. 5) out of an elastic material, it will elastically deform to conform to the teeth and gums, further improving the cleaning effect (Fig. 6, bottom). The bristles extending diagonally downward in the direction perpendicular to the rotation axis means that the bristles extend diagonally downward from the plane perpendicular to the rotation axis. If the rotating brush, including the bristles, is likened to a truncated cone (it is easier to imagine this by referring to Figure 3), the bristles extend toward the side of the cone. As for the degree of the diagonal, if the direction perpendicular to the rotation axis is 0°, it is more preferable that the angle at the tip of the bristles is 25° to 65°, and even more preferable that it is 35° to 55°. If it is likened to a truncated cone, the degree of the diagonal is the degree of inclination of the side. By planting the bristles at an angle, the bristles can easily enter difficult-to-clean areas such as the drum-shaped space and the gingival sulcus. Furthermore, it is less likely to damage the buccal mucosa or gingiva as they do not hit them perpendicularly. Also, depending on the position where the bristles are planted, they serve the role of bristles for cleaning the cusps from above, the cervical area from the side, the periodontal pocket, and the gingival area (Figure 5 11 to 14), so it is more preferable to change the angle of each to an appropriate angle for cleaning each area.

[0014] Furthermore, since it may be difficult in manufacturing to plant the bristles diagonally downward, the bristles are trained to point diagonally downward when in use, and some or all of the bristles of the toothbrush auxiliary device of the present invention may extend perpendicular to the rotation axis.

[0015] The length of the hair is preferably 0.5 to 1 cm, the thickness of the hair is preferably as thin as possible as long as the hair does not bend under gravity and can maintain a certain shape, and the density of the hair is preferably as high as possible as long as the hairs do not stick to each other. The bristles of the rotating brush are planted so that they can cover both the sides of the teeth and the sides of the gums at the same time (Figure 6, top). More bristles are planted over a wider area than when only the sides of the teeth are covered. "Covered" does not only mean completely covered, but also means that some parts are not covered. With the bristles planted to cover both, it is possible to clean and massage the teeth at the same time, shortening the time it takes to brush your teeth. The diameter of the rotating brush including the bristles at its largest point is preferably 0.5 cm to 2.5 cm, and the height is preferably 1.0 to 2.0 cm. If the rotating part including the bristles is likened to a truncated cone, the former is the diameter of the base, and the latter is its height. Considering that it will be placed inside the oral cavity, it is generally considered that smaller diameters and heights are more suitable. However, if they are too small, it can be difficult to manufacture, so it is more preferable to adjust them for each user according to the size of the space between the teeth and cheek. It is also preferable that the rotating brush is replaceable, so that when the bristles of the rotating brush deteriorate, the rotating brush can be replaced. Regarding the inclination of the rotation axis 15 (FIG. 5) of the rotating brush, the rotation axes of the two rotating brushes constituting a pair may be parallel to each other (parallel in FIG. 1), but it is more preferable if they are inclined so as to approach each other toward the brush tip (inclined in FIG. 7). If the rotation axes are parallel, the rotating brushes are arranged so that they are almost parallel to the direction in which the teeth grow when the teeth are sandwiched. If the rotation axes are inclined so as to approach each other toward the brush tip, the rotation axes are arranged so that they are inclined toward the teeth from the tip of the teeth toward the gums. It is more preferable that this inclination angle is adjustable, and for example, a hinge may be provided on the support part 2 or the handle part 1 so that it can be adjusted (FIG. 1 shows the hinge closed, and FIG. 7 shows the hinge opened), or a joint may be provided at the horizontal center of the arm part 7 (FIG. 2) so that it can be bent to adjust the inclination angle (FIG. 2).

[0016] (II) Number of rotating brushes The toothbrush aid of the present invention includes at least one pair of rotating brushes, but may include additional pairs of rotating brushes, i.e., may consist of two or more pairs of rotating brushes. The number of rotating brushes may be an odd number, such as a structure in which two rotating brushes and one rotating brush form a pair to sandwich the teeth and gums (FIG. 18). Increasing the number of rotating brushes increases the number of rotating brushes that sandwich the teeth and gums, so that more teeth and gums can be brushed by moving the aid back and forth the same number of times. Furthermore, when the toothbrush aid is motorized or self-propelled, the movement of the toothbrush aid is more stable with two or more pairs than with one pair.

[0017] (III) Material of the bristles of the rotating brush The bristles of the rotating brush of the present invention are made of an elastic material. An elastic material is an elastomer, which is a general term for materials that have rubber-like elasticity at room temperature. Among elastic materials, natural rubber and synthetic rubber, which are rubber materials, are more preferable. Rubber materials that can be used in sanitary products are even more preferable. Examples include heat-resistant urethane rubber, fluorine-based rubber, propylene-based rubber, ethylene-based rubber, heat-resistant butyl rubber, and silicone rubber, and silicone rubber is particularly preferable. By using an elastic material, it is possible to simultaneously brush the teeth and gums, and it is less likely to damage soft tissues such as the buccal mucosa and gums.

[0018] (VI) Clamping with a pair of rotating brushes The toothbrush auxiliary tool of the present invention has a structure in which the teeth and gums are sandwiched between the bristles of a pair of rotating brushes. The bristles, made of an elastic material, are pressed against the teeth and deform so as to lie along the tooth surfaces and gums, sandwiching the teeth and gums. When the teeth and gums are pinched by rotating brush bristles arranged at the tips of a support part branching in two directions (Fig. 4), this pinching force may utilize the elastic force of the forks trying to close, or a mechanism for adjusting the distance between the forks, for example, a mechanism for narrowing the distance between the forks by moving a ring wound across the forks toward the tip, may be provided. Also, when two rotating brushes making up a pair are connected by an arm part (Fig. 2), a biasing material such as a spring may be used in the arm part to generate the pinching force. In either case, it is sufficient to be able to pinch the teeth and gums with a pair of opposing rotating brushes and apply pressure along the tooth surface and gums. Although elastic bristles are suitable for massage, they have poor cleaning ability, so if you try to use elastic bristles to massage your gums and clean your teeth at the same time, you will end up with insufficient tooth cleaning. In the present invention, this poor cleaning ability is compensated for by applying pressure. That is, even though the bristles are made of elastic material, by sandwiching them between two rotating brushes, the bristles are pressed against the teeth, and the pressed elastic bristles deform and enter difficult-to-clean areas such as the drum-shaped gap and gingival sulcus (lower diagram of Figure 6), and the bristles enter the gaps in a dense form, and coupled with the rotation, the elastic force scrapes out dirt, allowing the teeth to be cleaned sufficiently. In this case, the tip of the bristles does not necessarily get into the difficult-to-clean areas, but the bristles that are pressed and deformed will get into the difficult-to-clean areas, regardless of whether they are the tip or the middle of the bristles. In the case of normal nylon bristles, in order to clean difficult-to-clean areas, it is necessary not to crush the tip of the bristles of the rotating brush (for example, Reference 1

[0021] ), and the present invention, which presses the bristles against the teeth and lays them down, has the opposite movement. In addition, by making the bristles point diagonally downward, it is easier for the bristles to get into difficult-to-clean areas, making up for the poor cleaning ability of bristles made of elastic material. The bristles of the rotating brush are made of a small number of elastic bristles, and in areas without teeth, the bristles rotate against each other like gears to clean the gums, while in areas with teeth, the bristles rotate due to friction with the teeth to clean the teeth and gums. The effect of the gears allows cleaning of areas without teeth and behind the back teeth. In addition, food debris from the floor of the mouth 18 can also be brushed (Figure 8, and Figure 8 shows that the gums 17 are also massaged at the same time). In addition, the bristles, made of an elastic material, are pressed firmly against the gums, pushing out microorganisms from within the gingival sulcus, thereby preventing periodontal disease. Some of the bristles, which were previously facing diagonally downward, slide over the gums and teeth and then face diagonally upward, toward the tips of the teeth (Figure 6, bottom), which helps to eliminate food debris and provides a massage.

[0019] (V) Rotation of the rotating brush Rotating brushes rotate by meshing bristles like gears, or by friction with the teeth, in conjunction with the back and forth movement of the toothbrush along the teeth. If it is electric, it rotates by electrical power.

[0020] (4) Handle part When the toothbrush aid of the present invention has a support part 2 (FIG. 1), it may have a handle part 1 before the support part branches off. By gripping it together with the handle part of the toothbrush, the toothbrush aid can be operated more stably. There are no particular limitations on the shape of the handle part, but it may be slightly bulging or have an uneven surface so that it is easy to hold in the hand. It is also possible that the handle part is integrated with the support part and cannot be clearly separated.

[0021] (5) Toothbrush attachment part The toothbrush auxiliary may be attached to the toothbrush with something like an adhesive tape, but it is more preferable if the toothbrush auxiliary has a toothbrush attachment part. The toothbrush attachment part needs to be attached so that when the tooth is sandwiched between the two rotating brushes of the auxiliary, the toothbrush touches the upper surface of the tooth and brushes the occlusal surface of the tooth. Furthermore, the positional relationship between the tip of the toothbrush and the tip of the auxiliary is not particularly limited, but considering the decrease in smoothness of rotation due to interference between the bristles of the toothbrush and the auxiliary, and the need to clean the distal part of the backmost molar, it is more preferable if the attachment part is provided so that the tip of the auxiliary is positioned ahead of the tip of the toothbrush (Figure 4). The attachment part may be, for example, a ring-shaped fastener that can fix the toothbrush to the grip part 1 or support part 2 (Fig. 1) of the toothbrush aid, or a screw may be attached to the horizontal center of the arm part 7 (Fig. 2) with the tip facing outward, and this screw may be screwed into the apex of the toothbrush head. Also, the toothbrush aid may be shaped so that it can be fitted into the head (Fig. 13), neck, or handle part (Figs. 14 to 16) of the toothbrush. The toothbrush attachment part is thought to be attached to the toothbrush aid in most cases, but the attachment part for the toothbrush aid may be attached only to the toothbrush side, or it may be attached to both sides like a button and combined. Also, a toothbrush with a toothbrush aid may be used in which the two are integrated from the beginning. In this case, the positional relationship between the two is the same as when there is an attachment. When the two are integrated, the pair of rotating brushes being connected to each other does not only mean that they are connected via the support part or arm part of the aid, but also means that they are connected via the part that corresponds to the toothbrush, such as the toothbrush head, even if they are not connected via the part that corresponds to the aid.

[0022] (6) How to use the toothbrush aid The toothbrush aid of the present invention is typically attached to a rod-shaped toothbrush, but it is not excluded that it can be attached to other types of toothbrushes, such as finger-cot-shaped toothbrushes. By simply moving the toothbrush back and forth along the teeth, teeth cleaning and gum massage can be performed at the same time. In addition, if the toothbrush aid is an electric toothbrush aid, the rotating brush rotates independently of the back and forth movement of the toothbrush.

[0023] (7) Specific Shape of the Toothbrush Aid of the Present Invention Specific shapes of the toothbrush aid of the present invention are as follows: one with an attachment part that can be attached to the head part of the toothbrush and two pairs of rotating brushes (Fig. 13), one with an attachment part that can be attached to the handle part of the toothbrush (Figs. 14 and 15), and one with two pairs of these rotating brushes (Fig. 16). Fig. 17 shows a toothbrush with an aid (Fig. 17) in which the aid and the toothbrush are integrated. Fig. 18 shows a toothbrush with an aid in which the handle part 19 and the head part 20 are freely rotatable. By allowing them to rotate freely, the rotating brush can be moved back and forth along the row of teeth. Also, one and two rotating brushes form a pair to sandwich the teeth and gums. EXAMPLES

[0024] [Example 1] Experiment to demonstrate tooth cleaning effect An experiment was conducted to see whether the toothbrush auxiliary of the present invention could be used to sufficiently clean the teeth by moving back and forth along the teeth. [Comparative Experiment Example 1] (1) Materials and Experimental Methods (I) For the experiment, we used a normal toothbrush (hereafter referred to as toothbrush), a tooth model, and a sample made by processing rice into starch in a mortar, adding starch paste (Yamato Corporation, Yamato paste), and coloring it with a plaque staining solution. After applying this sample to the tooth model, we used the experimental equipment to brush it with a toothbrush. The experimental device used was one in which the toothbrush was fixed in a vice and the tooth model was moved back and forth to brush the teeth (Fig. 9). However, in this example, the vice was placed on the top of a tripod that could rotate freely on a horizontal plane, and the device was assembled so that the angle of the toothbrush could be changed, making it possible to brush teeth that are not arranged in a straight line, from molars to canines (Fig. 10). (II) In the experiment, the tooth model was moved back and forth, and the angle of the toothbrush was adjusted accordingly from the mesial to the distal end of the molar, so that the teeth could be brushed efficiently. One stroke was from canine to molar to canine, and 20 strokes were performed. The bristles of the toothbrush had split, so that the tops of the teeth were brushed with the tips or bent bristles, and the sides of the teeth had to be brushed with the side of the toothbrush. (2) Results Stains remained on the occlusal surface, mesial surface of the canine, distal surface of the molar, palatal surface, and buccal surface (areas circled in Figures 11(A), (B), (C), (D), and (E), respectively). [Experimental Example 1] (1) Materials and Experimental Methods The experimental apparatus used was the same as that used in Comparative Experimental Example 1. The toothbrush was equipped with the toothbrush aid of the present invention (the toothbrush aid in FIG. 1) and used. The bristles were made of silicone rubber. The toothbrush aid was equipped with a hinge at the support, and the angle at which it clamped the teeth was optimally adjusted. The tooth model used in the experiment was the same as the one used in Comparative Experimental Example 1, but still had dirt remaining after brushing, and was washed by gargling before use. (2) Results Stains were sufficiently removed from the occlusal surfaces, mesial surfaces of the canines, distal surfaces of the molars, palatal surfaces, and buccal surfaces (areas circled in Figures 12(A)', (B)', (C)', (D)', and (E)', respectively). (3) Discussion (I) Occlusal surface (i) Comparative experiment example: The tips of the bristles were gathered in the grooves for brushing, but with the linear brushing motion, the tips of the bristles did not seem to enter the deep grooves with enough pressure, and dirt remained only in the deep grooves. (ii) Experimental example: It was assumed before the experiment that there would be no change in the occlusal surface and that stains would remain as a control. However, it appears that a sufficient brushing effect was achieved. It is assumed that the toothbrush aid of the present invention, when attached to a toothbrush, pinches the teeth and moves along the teeth, adding a movement that was not achieved by the brushing movement of a conventional toothbrush alone. (II) Mesial surface of canine (i) Comparative experiment example: The tips of the bristles do not touch the sides of the teeth, so the brush is brushed with the side of the bristles. Since the bristles are straight, they split at the cusps. Since there are also missing parts of the teeth, this is an area that should be brushed from a different angle or with a different technique, but in any case, dirt remains. (ii) Experimental example: The expected results were obtained. The brushing motion and the pinching force caused the bristles of the rotating roller to intertwine with each other, removing any remaining tooth debris. (III) Distal surface of molar Experimental example: As with the mesial surface of the canine, it was possible to remove any remaining plaque, and sufficient results were obtained. In addition to the brushing ability shown with the mesial surface of the canine, the space is narrower further back, so the bristles are pressed more firmly, causing elastic deformation, and without harming the buccal mucosa, so even greater brushing and massaging effects can be expected in the actual oral cavity. (IV) Palatal aspect Experimental example: The remaining polishing residue was removed, and the experimental results were considered satisfactory. (V) Buccal surface Experimental Example: The toothbrush aid of the present invention was made of a material that does not harm the buccal mucosa, and was able to achieve sufficient stain removal results. (VI) Summary In the experimental example, the teeth were cleaned more thoroughly than in the comparative experimental example. Also, since there was no noticeable unbrushed area in the experimental example, it was found that the teeth were cleaned to the same extent as when the teeth were brushed using the technique or existing aids. Furthermore, since the bristles are made of silicone rubber, it is believed that the gums are also massaged, and it was found that the toothbrush aid of the present invention can be used to clean the teeth and massage the gums sufficiently in a short time. The results of this experiment were obtained by testing brushing movements on a model. Although only partially missing teeth, canines, and molars were included, this experiment shows that this product has produced sufficient results to solve the basic problem of not brushing hard-to-clean areas due to cavities and periodontal disease in clinical dentistry. [Industrial Applicability]

[0025] In dentistry, for a long time, individuals have spent a great deal of time learning the techniques for brushing teeth under the guidance of professionals to prevent cavities and periodontal disease. Furthermore, it is recommended to brush each tooth finely, which takes a great deal of time and effort. The present invention makes it possible to brush many teeth continuously with large strokes, significantly reducing the time and effort required for the above, which has been an issue in dentistry in recent years, and is harmless. It also makes it possible to directly address periodontal disease, and is expected to contribute to improving quality of life and individual productivity. The ability to manufacture and sell such highly effective products will increase the demand for dental hygiene-related products, making it useful in the dental hygiene industry. This tool allows dental care to be provided to people who have difficulty brushing their teeth, and contributes to improving productivity. For example, this tool allows caregivers to provide adequate tooth brushing to those who need assistance with less effort than currently required, and contributes to improving productivity. In other words, this tool reduces the burden on the nursing care industry, and is useful in industries related to the nursing care industry. Many countries overseas do not have universal health insurance systems in place as public welfare, so there is a possibility that this could help improve public health by providing universal medical care. It is also expected to become a new export item. If it can be patented overseas through a Paris priority application and exports are successful, it will be useful in the dental hygiene industry. Since it can be used by simply replacing the bristles, it requires few consumable materials, and since it is an auxiliary tool, it is not disposable and can be used by simply replacing the rotating brush. It is environmentally friendly, making it useful in the dental hygiene industry. [Explanation of symbols]

[0026] 1 Gripping part 2 Support part 3 Rotating Brush 4. The core of the rotation 5. Elastic bristles 6 Branch 7 Arm section 11 Brush bristles for cusps and sides 12 Cervical brush bristles 13 Periodontal pocket brush 14 Gingival brush bristles 15 Rotational Axis 16 Outer part of the core 17 Gums 18 Floor of oral cavity 19 Handle section 20 Head section

Claims

1. at least one pair of rotating brushes having bristles made of an elastic material extending in a direction perpendicular to a rotating shaft and / or bristles made of an elastic material extending obliquely downward from said direction around the rotating shaft, the rotating brushes being disposed so as to sandwich the teeth and gums; The bristles of both rotating brushes are planted to such an extent that they can cover the sides of the teeth and gums at the same time, This toothbrush auxiliary tool has two rotating brushes that rotate in conjunction with back and forth movement along the teeth while pinching the teeth and gums, or rotate electrically, and the bristles brush the teeth and gums while bending in contact with the sides of the teeth and gums.

2. The rotary brush includes a support part branched in two directions, and a rotary brush having bristles made of an elastic material extending in a direction perpendicular to the rotary shaft and / or bristles made of an elastic material extending obliquely downward from the direction perpendicular to the rotary shaft, the rotary brushes being arranged so as to sandwich the teeth and gums, The bristles of both rotating brushes are planted to such an extent that they can cover both the sides of the teeth and the sides of the gums at the same time. This toothbrush auxiliary tool has two rotating brushes that rotate in conjunction with back and forth movement along the teeth while pinching the teeth and gums, or rotate electrically, and the bristles brush the teeth and gums while bending in contact with the sides of the teeth and gums.

3. The toothbrush aid according to claim 1 or 2, which has a toothbrush attachment part, This toothbrush auxiliary has an attachment part to which a toothbrush can be attached so that the bristles of the toothbrush come into contact with the upper surfaces of the teeth when the teeth and gums are sandwiched between the bristles of both rotating brushes.

4. A toothbrush with an auxiliary tool, comprising the toothbrush auxiliary tool of claim 1 or 2, In this toothbrush with auxiliary tool, when the teeth and gums are pinched between the bristles of the two rotating brushes of the auxiliary tool, the bristles of the toothbrush come into contact with the upper surfaces of the teeth.

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