JP2018187020A - Tooth washing equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide box-shaped tooth washing equipment capable of washing teeth at a short time and allowing a user to easily use the equipment.SOLUTION: The tooth washing equipment comprises: a front face part 7; a back face part 9; and a coupling part 11 for coupling the front face part 7 and the back face part 9. A recess 19 is formed between an inner face 13 of the front face part and an inner face 15 of the back face part. On one or both of the inner face 13 of the front face part and the inner face 15 of the back face part, a tooth washing action part 21 is provided. When a main body part 3 is moved along a tooth row in a state in which the recess 19 is made to cover the tooth row T, the tooth washing action part 21 contacts both or one of front faces and back faces of teeth, for generating a tooth washing action.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a tooth cleaning device that can be used to remove leftover food, plaque, dirt, and the like attached to teeth and has been developed to compensate for the drawbacks of conventional toothbrushes.

  Conventionally, a toothbrush has been used to remove plaque adhering to teeth. In general, a toothbrush has a long handle, and a hard brush is provided at the tip of the handle.

JP 2009-247800 A JP 2005-177253 A JP 2004-148079 A JP 2007-54148 A JP 2009-45345 A

  Such conventional toothbrushes are suitable for brushing the back teeth by reaching the back of the oral cavity, but the tip of the long handle hits the oral cavity and damages the oral cavity and damages the gums by the brush etc. There were also problems. In addition, there are places where brushing is difficult to reach in the shape of a conventional toothbrush, and there is also an aspect that cleaning with an ultrasonic device must be used in combination as shown in Patent Documents 1-5 below.

As a result of intensive studies, the present inventor has developed a box-shaped tooth cleaning device that allows a user to easily and quickly clean teeth in order to solve the above-described problems of conventional toothbrushes. It came to.
That is, the tooth cleaning device of the present invention includes a front surface portion, a back surface portion, and a coupling portion that connects the front surface portion and the back surface portion, and a recess is formed between the inner surface of the front surface portion and the inner surface of the back surface portion. A main body portion formed; and a tooth cleaning action portion provided on one or both of the inner surface of the front surface portion and the inner surface of the back surface portion, and the main body along the tooth row in a state where the concave portion is placed on the tooth row. When the tooth movement part is moved, the tooth cleaning action part comes into contact with either or both of the front surface of the tooth and the back surface of the tooth to produce a tooth cleaning action (implementation of the first aspect) Form).

In the said invention, the handle may be connected to the said main-body part (embodiment of a 2nd aspect).
In the above invention, the handle may be detachable from the main body (embodiment of the third aspect).
In the above invention, the handle may be rotatable with respect to the main body (embodiment of the fourth aspect).

In the above invention, the handle may be fixable at a specific angle with respect to the main body (embodiment of the fifth aspect).
In the above invention, the handle may be ring-shaped (embodiment of the sixth aspect).
In the above invention, the tooth cleaning action part may be a sponge-like material (embodiment of the seventh aspect).

In the above-mentioned invention, the tooth cleaning action part may be a brush (embodiment of the eighth aspect).
In the above invention, the tooth cleaning action part may be impregnated with a tooth cleaning auxiliary liquid (embodiment of the ninth aspect).
In the above invention, a brush may be formed on the inner surface of the coupling portion (embodiment of the tenth aspect).

In the above invention, the inner surface of the front surface portion and the inner surface of the back surface portion may be biased toward each other (embodiment of the eleventh aspect).
In the above invention, the inner surface of the front surface portion may have the same curvature as the curvature of the front surface of the dentition, and the inner surface of the rear surface portion may have the same curvature as the curvature of the back surface of the dentition (a twelfth aspect). Embodiment).
The invention of the present application may be a tooth cleaning device set including a plurality of sets of the tooth cleaning devices in which the lengths of the front surface portion and the back surface portion are different from each other (embodiment of the thirteenth aspect).

Further, the present invention may be a tooth cleaning device set including a plurality of sets of the tooth cleaning devices in which the heights of the front surface portion and the back surface portion are different from each other (embodiment of the fourteenth aspect).
The invention of the present application may be a plurality of sets of the tooth cleaning devices in which the curvature of the inner surface of the front portion and the curvature of the inner surface of the back portion are different (embodiment of the fifteenth aspect).
In the above invention, when the main body moves the main body along the dentition in a state where the concave portion is covered on the dentition, the curvature of the dentition at the back teeth is changed from the curvature of the dentition at the front teeth. You may have flexibility so that the curvature in the longitudinal direction of the said main-body part may change corresponding to a change (embodiment of the 16th aspect).

  According to the embodiment of the first aspect, when the main body portion is moved along the dentition with the concave portion placed on the dentition, the tooth cleaning action part is both or one of the front surface of the tooth and the back surface of the tooth. It can come into contact with the teeth to produce a tooth cleaning action. Further, it is possible to clean the teeth by a simple operation of moving the main body along the dentition.

According to the embodiment of the second aspect, the user can move the main body along the dentition while holding the handle.
According to the embodiment of the third aspect, the handle can be attached to the main body when used, and can be stored in a compact state by removing the handle from the main body when not in use.

According to the embodiment of the fourth aspect, when the user holds the handle and moves the main body along the dentition, the user can smoothly tooth without twisting the wrist or changing the handle. The cleaning operation can be performed.
According to the embodiment of the fifth aspect, the user can perform the tooth cleaning operation by fixing the handle to an angle at which the user can easily perform a specific operation.

According to the embodiment of the sixth aspect, the user can put a finger into the ring and perform a tooth cleaning operation.
According to the embodiment of the seventh aspect, the sponge-like material can scrape dirt on the tooth surface and keep the dirt in the material. Further, the sponge-like material is easy to impregnate and hold the tooth cleaning auxiliary liquid. Furthermore, the sponge-like material can perform a gum massage action and can also clean between teeth. The sponge-like material can be a material containing many bubbles such as a sponge, but the size of the bubbles between the portion that hits the teeth and the portion that hits the gums may be changed. Furthermore, since the shape of the spongy material changes in response to the unevenness of the dentition, it is possible to flexibly cope with the unevenness of the dentition that differs from person to person.
According to the embodiment of the eighth aspect, when the main body is moved along the dentition, the brush presses against the tooth surface and scrapes off the dirt. In addition, the brush is easy to impregnate and hold the tooth cleaning auxiliary liquid.

According to the embodiment of the ninth aspect, it is easy to separate the dirt and the like attached to the tooth surface by the tooth cleaning auxiliary liquid from the teeth, and it is easy to remove the dirt and the like.
According to the embodiment of the tenth aspect, the brush provided on the inner surface of the coupling portion acts on, for example, the rubbing surface of the back teeth, and the surface dirt can be scraped off.
According to the embodiment of the eleventh aspect, since the inner surface of the front surface portion and the inner surface of the back surface portion tend to be urged toward each other, the teeth are urged and sandwiched from the front and rear. It becomes easy to remove dirt and the like adhering to the surface from the teeth.

According to the embodiment of the twelfth aspect, the contact area between the inner surface of the front surface portion and the front surface of the dentition is increased, and the contact area between the inner surface of the rear surface portion and the dentition rear surface is increased. Will increase.
According to the embodiment of the thirteenth aspect, when the size of the dentition is different as in the case of a child and an adult, it is possible to select and use one of a plurality of sets of tooth cleaning devices suitable for each individual. it can.
According to the embodiment of the fourteenth aspect, when a tooth height is different like a child and an adult, it is possible to select and use one of a plurality of sets of tooth cleaning apparatuses that is suitable for each individual. .

According to the embodiment of the fifteenth aspect, when the curvature of the inner surface of the front surface portion and the curvature of the inner surface of the back surface portion are different as in the case of a child and an adult, there is an individual among a plurality of sets of tooth cleaning devices Can be selected and used.
According to the embodiment of the sixteenth aspect, the curvature of the dentition at the front teeth and the curvature of the dentition at the back teeth are usually different, but when the main body is moved along the dentition, the dentition at the front teeth The curvature in the longitudinal direction of the main body changes in accordance with the change in the curvature of the dentition at the back tooth from the curvature of the front, the contact area between the inner surface of the front part and the front surface of the dentition, or the back surface, for both the front and back teeth The contact area between the inner surface of the part and the back surface of the dentition becomes substantially constant, and the cleaning action of the teeth is improved.

It is a perspective view which shows the tooth cleaning apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the form of the various handles of the tooth cleaning apparatus which concerns on one Embodiment of this invention. It is a perspective view which shows the form of the various handles of the tooth cleaning apparatus which concerns on one Embodiment of this invention. It is sectional drawing which shows the form of the various tooth cleaning action part of the tooth cleaning apparatus which concerns on one Embodiment of this invention. (A) is a tooth cleaning apparatus according to an embodiment of the present invention, in which the inner surface of the front surface portion has the same curvature as the curvature of the front surface of the dentition, and the inner surface of the back surface portion has the same curvature as the curvature of the back surface of the dentition. (B) is explanatory drawing which shows embodiment in case it is not such a form. It is a perspective view which shows the tooth cleaning apparatus set provided with the multiple sets of tooth cleaning apparatus which concerns on one Embodiment of this invention from which the length of a front-surface part and a back surface part differs, respectively. It is a perspective view which shows the tooth cleaning apparatus set provided with the multiple sets of tooth cleaning apparatus which concerns on one Embodiment of this invention from which the height of a front-surface part and a back surface part differs, respectively. It is a perspective view which shows the tooth cleaning apparatus set provided with the multiple sets of tooth cleaning apparatus which concerns on one Embodiment of this invention from which the curvature of the inner surface of a front part and the curvature of the inner surface of a back part differ, respectively. A tooth cleaning apparatus according to an embodiment of the present invention having flexibility so that the curvature in the longitudinal direction of the main body changes in accordance with the change in curvature of the dentition at the back teeth from the curvature of the dentition at the front teeth. FIG.

Hereinafter, the tooth cleaning apparatus of the present invention will be described in detail with reference to the drawings.
As shown in FIG. 1, a tooth cleaning device 1 according to an embodiment of the present invention includes a main body 3 and a handle 5 as a whole. The handle 5 is not necessarily an essential component of the tooth cleaning device 1 of the present invention, but the handle 5 is provided in the embodiment shown in FIG. 1 in order to make it easier for the user to use the tooth cleaning device 1.

  As shown in FIG. 3, when the main body 3 is used by being placed on the dentition, the front surface portion 7 facing the front surface side of the dentition, the back surface portion 9 facing the back surface side of the dentition, and the front surface portion 7. And a connecting portion 11 for connecting the back portion 9 to each other. A concave portion 19 having a substantially U-shaped longitudinal section is formed in a portion surrounded by the inner surface 13 of the front surface portion 7, the inner surface 15 of the rear surface portion 9, and the inner surface 17 of the coupling portion 11, as shown in FIG. Thus, the tooth row T is received in the recess 19 when the tooth cleaning apparatus 1 is used. The inner surface 13 of the front surface portion 7 and the inner surface 15 of the back surface portion 9 are brought into contact with the teeth when the body portion 3 is moved along the tooth row T with the recesses 19 placed on the tooth row T. The tooth cleaning operation part 21 which provides the cleaning operation is provided. In any of the embodiments shown in FIG. 3, the tooth cleaning action portion 21 is provided on both the inner surface 13 of the front face portion 7 and the inner face 15 of the back face portion 9, but the tooth cleaning action portion 21 is only the inner face 13 of the front face portion 7. Alternatively, it may be provided only on the inner surface 15 of the back surface portion 9. Further, the tooth cleaning action part 21 may or may not be provided on the inner surface 17 of the coupling part 11.

  Various handles 5 will be described with reference to FIGS. 2A (a)-(c) and 2B (d)-(f). FIG. 2A (a) shows a handle 5 formed by bending a rod-shaped material, and the handle 5 is joined to the main body 3 by welding or the like. In the embodiment of FIG. 2A (a), the user can easily hold the handle 5 by fixing the handle 5 to the main body 3 with a specific horizontal angle or a specific vertical angle. Or make it easier to handle.

  FIG. 2A (b) shows an embodiment in which the handle 5 is formed in a ring shape. The ring-shaped handle 5 is connected to the main body 3 at the connection portion 23. The ring-shaped handle 5 may be fixed so as not to rotate at the connection portion 23, or may be connected so that the ring-shaped handle 5 can rotate with respect to the main body portion 3. Further, in the embodiment shown in FIG. 2A (b), the ring-shaped handle 5 is fixed so that the direction of the ring-shaped handle 5 is directed in the vertical direction, but the direction of the ring-shaped handle 5 is inclined from the state shown in FIG. 2A (b). It may be fixed in an inclined state, or may be fixed in a state where the ring is rotated by 90 degrees from the state shown in FIG. 2A (b). The size of the ring can be appropriately changed according to the thickness of the user's finger and the type of finger used.

  FIG. 2A (c) shows an embodiment in which a plate-like handle 5 is attached to the main body 3 so as to be rotatable in the horizontal direction. When the user grips the handle 5 with his / her hand and moves the main body 3 along the tooth row T with the recess 19 placed on the tooth row T, the handle 5 can turn around the rotation fulcrum 25. Therefore, the tooth cleaning operation can be performed smoothly without twisting the wrist or changing the handle 5.

  FIG. 2B (d) shows an embodiment in which the handle 5 is fixed to the main body 3 with bolts 27. A lock hole 31 having a plurality of lock grooves 29 formed at equal intervals around the periphery is formed on the proximal end side of the handle 5, while a plurality of lock holes 31 corresponding to the lock holes 31 are formed on the upper surface of the main body 3. The locking protrusions 35 are formed around the protrusions 33 at regular intervals. The bolt 27 is screwed into a screw hole 37 formed at the center of the locking projection 35 with the locking groove 29 of the locking hole 31 fitted in an arbitrary position of the projection 33 of the locking projection 35. By doing so, the handle 5 can be fixed to the main body 3. In the same manner as described above, the handle 5 is rotated with respect to the main body 3 so as to change the positions of the locking groove 29 of the locking hole 31 and the protruding portion 33 of the locking projection 35 in the circumferential direction. If the bolt 27 is fixed, the handle 5 can be fixed at various angular positions rotated with respect to the main body 3. FIGS. 2B (e) and 2 (f) show an embodiment in which a substantially circular handle 5 is formed integrally with the main body 3, and a recess 5a is formed in the handle 5 so that the handle 5 can be firmly held by a fingertip. The recess 5a can be formed not only on the upper surface of the handle 5 but also on the lower surface.

  Next, the tooth cleaning operation unit 21 will be described with reference to FIGS. In the embodiment shown in FIG. 3 (a), the tooth cleaning action portion 21 is formed of a spongy material 39. The spongy material 39 has elasticity. The elasticity of the spongy material 39 is such that the spongy material 39 can come into contact with the front surface and the back surface of the tooth due to the elasticity of the spongy material 39 when the concave portion 19 is put on the tooth row T, and in this state the tooth row T It is preferable to have an elastic force that can move along the axis. Examples of the spongy material 39 include soft plastic materials such as soft urethane foam and sponge, but are not limited to these, and can contact the front and back surfaces of the teeth. Any material can be used as long as it has an elastic force that can move along the tooth row T in the state. Sponge-like materials can perform gum massaging and can also clean between teeth. The sponge-like material may change the size of bubbles between the portion that contacts the teeth and the portion that contacts the gums. For example, if the bubble with the part which hits a gum is enlarged, since it will touch a gum gently, it can prevent damaging a gum. Furthermore, since the shape of the spongy material changes in response to the unevenness of the dentition, it is possible to flexibly cope with the unevenness of the dentition that differs from person to person. Moreover, as shown in FIG.3 (b), the tooth cleaning action part 21 can also be comprised with the brush 41. FIG. As shown in FIG. 3B, the brush 41 can be formed on the inner surface 17 of the coupling portion in addition to the inner surface 13 of the front surface portion and the inner surface 15 of the rear surface portion. Incidentally, the brush 41 and the spongy material 39 provided on the inner surface 17 of the coupling portion can act on the sliding surfaces of the back teeth and scrape off dirt on the surface.

  In the embodiment shown in FIG. 3C, a sponge-like material 39 is formed on the inner surface 13 of the front surface portion and the inner surface 15 of the rear surface portion of the main body portion 3, and a brush 41 is formed on the inner surface 17 of the coupling portion. . In this way, by changing the material depending on the part in contact with the tooth, the cleaning effect can be improved for each part of the tooth. In the embodiment shown in FIG. 3D, the brush 41 is formed integrally with the inner surface 13 of the front surface portion and the inner surface 15 of the rear surface portion of the main body portion 3.

  The embodiment described above is configured on the assumption that the main body portion 3 is not basically deformed. However, as shown in FIG. 3E, the inner surface 13 of the front surface portion and the inner surface 15 of the rear surface portion are mutually connected. You may have elasticity so that it may have an urging | biasing tendency (refer the arrow in FIG.3 (e)). That is, when the concave portion 19 of the tooth cleaning device 1 of the embodiment shown in FIG. 3 (e) is put on the tooth row T, the tooth row T with the front surface portion 7 and the back surface portion 9 of the main body 3 being slightly expanded outward. To cover. By releasing the force that spreads outward, the spongy material 39 is pressed against the front surface and the back surface of the dentition T as a result of the inward biasing force, as shown by the arrows in FIG. By moving the tooth cleaning device 1 along the tooth row T in this state, the frictional force between the sponge material 39 and the front surface and the back surface of the tooth row T is increased, and a higher cleaning action can be expected.

  The tooth cleaning part can be impregnated with a tooth cleaning auxiliary liquid. For example, various liquids containing bactericidal components against tooth bacteria such as anaerobic bacteria that cause periodontal disease can be used as the tooth cleaning auxiliary liquid. As an example, a registered trademark “manufactured and sold by Johnson & Johnson Co., Ltd.” Listerine "can be used. “Listerine” contains four active ingredients 1.8-cineole, thymol, methyl salicylate, and l-menthol as sterilizing and removing ingredients for dental bacteria. Ethanol is used as a solvent for these active ingredients, storage As the agent, benzoic acid, other solvent auxiliary agents, coloring agents, pH adjusting agents are included. When the tooth cleaning action part 21 is a brush, the tooth cleaning auxiliary liquid can be impregnated between the brush hairs. When the tooth cleaning auxiliary liquid is a sponge-like material, the tooth cleaning auxiliary liquid is a sponge. It can be impregnated into the material. During the use, the tooth cleaning auxiliary liquid can be appropriately added and impregnated in the tooth cleaning action part 21.

  Next, the degree of curvature of the main body 3 in the horizontal section will be described with reference to FIG. As shown in FIG. 4A, the inner surface 13 of the front surface portion 7 of the main body 3 has the same curvature as that of the front surface of the tooth row T, and the inner surface 15 of the back surface portion 9 has the curvature of the back surface of the tooth row T. It is preferable to have the same curvature. With such a configuration, the inner surface 13 of the front surface portion 7 is in close contact with the front surface of the dentition T on more surfaces, and the inner surface 15 of the back surface portion 9 is more on the back surface of the dentition T. Since it is possible to make a close contact with the surface, it is possible to enhance the cleaning action of the teeth. 4B, the inner surface 13 of the front surface portion 7 of the main body portion 3 does not have the same curvature as the curvature of the front surface of the tooth row T, and the inner surface 15 of the back surface portion 9 is the back surface of the tooth row T. If it does not have the same curvature as the curvature, a gap S is formed between the dentition T and the inner surface 13 of the front surface portion 7 or the inner surface 15 of the back surface portion 9 of the main body 3, and a portion where both contact with each other is formed. Since it becomes narrow, the cleaning action of the teeth cannot be enhanced.

  The tooth cleaning apparatus 1 of the present invention can be used by a variety of people, young and old, but since the size and shape of the teeth vary from person to person, the tooth cleaning apparatus 1 of the present invention is different in size and different. Can be prepared as a set of forms. For example, the embodiment shown in FIG. 5 shows a tooth cleaning device set including a plurality of sets of tooth cleaning devices 1 having different lengths of the front surface portion 7 and the back surface portion 9. Moreover, embodiment shown in FIG. 6 shows the tooth cleaning apparatus set provided with the multiple sets of tooth cleaning apparatus 1 from which the height of the front-surface part 7 and the back surface part 9 differs, respectively. Further, the embodiment shown in FIG. 7 shows a tooth cleaning device set including a plurality of sets of tooth cleaning devices 1 having different curvatures of the inner surface 13 of the front surface portion 7 and the inner surface 15 of the back surface portion 9. As described above, a plurality of sets of tooth cleaning apparatuses 1 having different lengths and heights of the front surface portion 7 and the back surface portion 9, the curvature of the inner surface 13 of the front surface portion 7, and the curvature of the inner surface 15 of the back surface portion 9 are provided in advance. By selecting the tooth cleaning device 1 in a form most suitable for the user by a doctor or the like, the user can use the tooth cleaning device 1 having a high cleaning effect.

  The embodiment shown in FIG. 8 is flexible so that the curvature of curvature in the longitudinal direction of the main body portion 3 changes from the curvature of the dentition T1 at the front teeth to the change in the curvature of the dentition T2 at the back teeth. 1 shows a tooth cleaning apparatus having the property. That is, human teeth usually have a relatively large curvature from the front tooth T1 to the vicinity of the canine, and a relatively small curvature of the tooth T2 from the vicinity of the canine to the back tooth. Therefore, even if one tooth cleaning device 1 having a certain curvature of curvature tries to clean the teeth from the front teeth T1 to the back teeth T2, the change in the curvature of the teeth T is not sufficient. The cleaning effect may not be obtained. In the embodiment shown in FIG. 8, the main body 3 has flexibility in its longitudinal direction, and the main body 3 corresponds to the change in the curvature of the dentition T from the dentition T1 of the front teeth to the dentition T2 of the back teeth. The part 3 can be deformed so that the curvature of curvature in the longitudinal direction changes. Accordingly, in the region where the curvature of the arrangement from the front tooth row T1 to the vicinity of the canine is relatively large, the main body portion 3 bends relatively long in the longitudinal direction so as to match the curvature of this region, while the row of teeth from the vicinity of the canine to the back tooth. In the region where the curvature up to T2 is relatively small, the main body 3 bends relatively small in the longitudinal direction so as to match the curvature of this region. Thereby, the part which the front-surface part 7 and the back surface part 9 of the main-body part 3 contact with the tooth row T becomes large, and the cleaning effect of a tooth increases.

DESCRIPTION OF SYMBOLS 1 Tooth cleaning apparatus 3 Main-body part 5 Handle 5a Recess 7 Front part 9 Back part 11 Coupling part 13 Inner surface 15 of a front part 15 Inner surface 17 of a rear part 19 Inner part 19 of a joint part 21 Tooth cleaning action part 23 Connection part 25 Rotation fulcrum 27 Bolt 29 Locking groove 31 Locking hole 33 Projection 35 Locking protrusion 37 Screw hole 39 Sponge-like material 41 Brush T Teeth row T1 Teeth row of front teeth T2 Teeth row of back teeth S Gap

Claims (16)

A main body portion including a front surface portion, a back surface portion, and a coupling portion that couples the front surface portion and the back surface portion, and a recess is formed between the inner surface of the front surface portion and the inner surface of the back surface portion;
A tooth cleaning operation part provided on both or one of the inner surface of the front part and the inner surface of the rear part,
When the body portion is moved along the dentition with the concave portion covered on the dentition, the tooth cleaning action unit comes into contact with both or one of the front surface of the teeth and the back surface of the teeth, thereby cleaning the teeth. A tooth cleaning device characterized by The tooth cleaning apparatus according to claim 1,
A tooth cleaning apparatus, wherein a handle is connected to the main body. The tooth cleaning apparatus according to claim 2,
The tooth cleaning apparatus, wherein the handle is detachable from the main body. The tooth cleaning apparatus according to claim 2 or 3,
The tooth cleaning apparatus, wherein the handle is rotatable with respect to the main body. The tooth cleaning apparatus according to claim 2 or 3,
The tooth cleaning apparatus, wherein the handle can be fixed at a specific angle with respect to the main body. In the tooth cleaning apparatus according to any one of claims 2 to 5,
The tooth cleaning apparatus, wherein the handle is ring-shaped. In the tooth cleaning device according to any one of claims 1 to 6,
The tooth cleaning device is characterized in that the tooth cleaning unit is a sponge-like material. In the tooth cleaning device according to any one of claims 1 to 6,
The tooth cleaning device is characterized in that the tooth cleaning operation part is a brush. The tooth cleaning apparatus according to any one of claims 1 to 8,
The tooth cleaning device, wherein the tooth cleaning operation part is impregnated with a tooth cleaning auxiliary liquid. In the tooth cleaning device according to any one of claims 1 to 9,
A tooth cleaning device, wherein a brush is formed on an inner surface of the coupling portion. In the tooth cleaning device according to any one of claims 1 to 10,
The tooth cleaning device, wherein the inner surface of the front portion and the inner surface of the back portion tend to be biased toward each other. In the tooth cleaning device according to any one of claims 1 to 11,
The tooth cleaning apparatus according to claim 1, wherein an inner surface of the front portion has the same curvature as a curvature of the front surface of the dentition, and an inner surface of the rear portion has the same curvature as the curvature of the rear surface of the dentition.   The tooth cleaning apparatus set provided with the tooth cleaning apparatus as described in any one of Claims 1-12 from which the length of the said front-surface part and a back surface part respectively differs.   The tooth cleaning apparatus set provided with the tooth cleaning apparatus as described in any one of Claims 1-12 from which the height of the said front-surface part and a back surface part respectively differs.   The tooth cleaning apparatus set provided with the tooth cleaning apparatus as described in any one of Claims 1-12 from which the curvature of the inner surface of the said front part and the curvature of the inner surface of a back part differ, respectively.   The tooth cleaning apparatus according to any one of claims 1 to 12, wherein the main body portion is a front tooth when the main body portion is moved along the tooth row in a state where the concave portion is covered on the tooth row. A tooth cleaning apparatus having flexibility so that the curvature in the longitudinal direction of the main body changes in accordance with the change in the curvature of the dentition at the back tooth from the curvature of the dentition.

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