KR100937829B1 - Tooth brush - Google Patents

Abstract

According to the present invention, the left and right "Ｖ" shaped wings are arranged on the left and right sides of the center hair which is the center bristle in the front and rear direction of the toothbrush head, and the "Ｖ" shaped wings are arranged in a "Ｘ" shape. By arranging ancillary hairs between the anterior and posterior wing hairs of some "X" bristles, thereby widening the tooth contact area, and allowing the three cavities of the upper and lower molar occlusal surfaces, Bovine), central fovea (central fovea), centrifugal fovea), buccal, lingual, bulge, triangular, buccal buccal, tooth-space between food residues, food indentation Brushing around the buccal contact point where symptoms occur more effectively prevents tooth decay and periodontal disease, while protruding cushion layers over the toothbrush head reduce pain and facial muscle fatigue due to impaired jaw joints It's about a toothbrush that can help you recover.

Dental disease, tooth decay, periodontal disease, jaw joint disorder, prevention

Description

Toothbrush}

The present invention relates to a toothbrush that can reduce the pain caused by dental caries, periodontal disease, and jaw joint disorders of the three major dental diseases, in particular, based on the central hair which is the central bristle of the front and rear toothbrush head, The heads are arranged in a "Ｖ" shape on the right side, and the "Ｖ" shape heads on the right and left sides are combined to form a "Ｘ" shape, and the auxiliary hair is inserted between the front and rear wing heads of some "X" bristles. By arranging, the tooth contact area is widened, and the three cavities of the upper and lower molar occlusal surfaces, which are the site of dental caries, are the mesial cavity (central fossa), the central fossa (central fossa), the centrifugal fossa, Buccal, lingual, buccal, triangular, buccal buccal, tooth-space between food-bearing deposits, and buccal contact points where food indentation occurs. By the other hand, the top of the toothbrush head so preventing the cushion layer to be formed to protrude relates to a toothbrush to aid in pain relief and recovery facial muscle fatigue due to a temporomandibular joint disorder.

In general, as shown in FIG. 1, the molar of a human molar is formed by forming three negative, buccal, lingual, buccal, and triangular spheres in each molar tooth. , The periphery of the medulla, the fovea, and the centrifugal lobe are formed, and the wa are connected by the central sphere, and the buccal and lingual spheres leading from the central fovea (but the maxillary molar extend from the centrifuge to the lingual sphere) Spheres, which are formed from the centrifugal and subsequent bulges and triangles.

Conventional toothbrushes have bristles with a straight arrangement in the left and right directions of the head, so that the tooth contact area is narrow, the tooth structure of the molar occlusal surface cannot be brushed effectively, and the tooth molar bubbling food residue deposits occur. There was a problem that can not be effectively brushed around the buccal contact point between the space between the teeth, food indentation phenomenon.

The present invention has been made in consideration of the above circumstances, and the object of the present invention is to firstly increase the contact area of each bristles, and to prevent the tooth caries, the upper and lower molar occlusal occlusal surfaces of the three (myocardial and ), Central fovea, centrifugal fovea), buccal, lingual, lingual, triangular, buccal buccal, tooth-space between food residues, food indentation Brushing around the buccal contact points more effectively, preventing tooth decay and periodontal disease, and second, protruding a cushion layer formed on the top of the toothbrush head to help reduce pain and recover from facial muscle fatigue To provide a toothbrush that can help.

In order to achieve the above object, the first to sixth bristles having an "X" shape of a bristles centered around a central center hair are arranged side by side in the front and rear directions of the toothbrush head, and the bristles are each angled. The bristles are formed in a straight line, and the bristles are curved toward each other, and the bristles are widened so as to extend outwards, so that the actual spurs of the upper and lower molar teeth, the center, the centrifugal, and the buccal and trigeminal spheres that extend in the buccal and lingual directions are It is formed according to the shape to widen,

The center of each wing has a "+" shape and the center has a conical shape and protrudes 1-2mm, the center of each wing has a circular shape and the center has a conical shape and protrudes 1-2mm, and each center has a The spacing is 2 mm, the length from the anterior side end of the anterior wing of the first bristles to the posterior end of the posterior wing of the sixth bristles is 1.7 cm, and the adjoining wing hairs of each wing are not more than 2 mm apart; , The width between the front and rear bristles of the second and fifth bristles is wider than the width between the front and rear blades of the first, third and fourth and sixth bristles, and the first to third bristles It becomes higher than the center, and forms an asymmetrical curve about one quarter point with respect to the central axis, and the fourth to sixth bristles are parallel to each other, forming a narrow shape while inclining high to the center part. The first half is formed between the front and rear wing hairs of the second bristles, the first half is formed at the same height and width as the center of the center hair and is spaced apart by the width of the center hair center, and the fifth The rear half of the bristles is formed between the front and rear wing hairs, and the rear half of the bristles is gradually lowered toward the outside, and the barrier walls between the bristles to prevent the bristles from tilting are formed. The bristles are made of a plate, the plates are made of rubber or a bundle, and a domed first cushion layer is formed on the top of the toothbrush head, and the first cushion layer has a band shape on the top of the first cushion layer. An object of the present invention is to provide a toothbrush in which a second softer cushion layer is formed than the cushion layer.

The present invention allows the bristles to be arranged in a "우측" shape on the left and right sides with respect to the center bristle, which is the center bristle in the front and rear direction of the toothbrush head, and at the same time, the "Ｖ" shaped bristles on the left and right sides are arranged in a "Ｘ" shape. By arranging ancillary hairs between the front and rear wing hairs of the second and fifth bristles, so that the tooth structure of the tooth, which is the site of dental caries (and, the mouth, triangle, buccal, lingual, and buccal buccal) It is effective to prevent tooth decay and periodontal disease by more effectively brushing the space between the teeth and the space between the teeth, which is easy to remove food residue, and difficult to remove, and the contact point where food indentation occurs. have.

In addition, the cushion layer protrudes on the top of the toothbrush head, thereby reducing the pain caused by the disorder of the jaw joint and helps to recover facial muscle fatigue.

And by forming a protective wall with the toothbrush brand between the bristles, there is also an effect that can reduce the tilting of the bristles.

Next, the present invention will be described with reference to the drawings.

2 shows a toothbrush in accordance with the present invention, which includes first to sixth bristles (11) (12) (13) (14) (15) ("shapes" on the head 10). 16 are arranged side by side in the front and rear directions, and the center hair a1 (a2) (in the center of the first to sixth bristles 11, 12, 13, 14, 15, 16 ( a3) (a4) (a5) (a6) are formed, the first half of the second bristles 12, and the first half of the hairs d1 and e1, and the second half of the fifth bristles 15 of the second half of the hair d2 and e2) are formed respectively.

The first bristle 11 has a front wing (b1) and the rear wing (b2) is formed continuously to form a "V" shape on one side of the central hair (a1), the front wing (c1) on the other side And the rear wing hair (c2) is formed continuously forming a "V" shape, and will form a "X" shape around the center hair a1.

The second bristle 12 has a front wing (b3) and the rear wing (b4) is formed continuously to form a "V" shape on one side of the center hair (a2), the front wing (c3) on the other side And the rear wing hair (c4) is formed continuously while forming a "V" shape, and will form a "X" shape around the center hair (a2).

Then, the front half auxiliary hairs d1 (e1) are formed between the front and rear wing hairs b3 and b4 (c3 and c4).

The third bristle 13 is continuously formed while the front wing (b5) and the rear wing (b6) in the "V" shape on one side of the center hair (a3), the front wing (c5) on the other side And the rear wing hair c6 are continuously formed while forming the “V” shape, and form the “X” shape around the center hair a3.

The fourth bristle 14 has a front wing (b7) and the rear wing (b8) formed in a continuous "V" shape on one side of the central hair (a4), the front wing hair (c7) on the other side And the rear wing hair c8 are continuously formed while forming the "V" shape, and form the "X" shape around the center hair a4.

The fifth bristles 15 are continuously formed while the front wing hair b9 and the rear wing hair b10 form a "V" shape on one side of the central hair a5, and the front wing hair c9 on the opposite side. And the rear wing hair (c10) is continuously formed while forming the "V" shape, and will form a "X" shape around the center hair (a5).

Then, the rear half auxiliary hairs d2 and e2 are formed between the front and rear wing hairs b9 and b10 and c9 and c10.

The sixth bristle 16 has a front wing hair b11 and a rear wing hair b12 formed continuously on one side of the center hair a6, forming a “V” shape, and the front wing hair c11 on the opposite side. And the rear wing hair c12 are continuously formed while forming a "V" shape, and form an "X" shape around the center hair a6.

Among the first to sixth bristles 11, 12, 13, 14, 15, and 16, the first to third bristles 11, 12, and 13 form the first half part I. The fourth to sixth bristles 14, 15 and 16 form the second half (II).

In the above, the center hair (a1, a2, a3, a4, a5, a6) is formed in the shape of a crisscross, and as shown in Figure 5 the center portion is formed as a conical protrusion protruding, this center portion is a normal bristle It will be 1-2mm higher than the height.

In the above description, the central hairs (a1, a2, a3, a4, a5, a6) are six, and the central portion of the central portion is conical in the shape of a zebra. To improve the suitability for the myocardium, the central caries, and the centrifugal lobe, which is located at the center of the dental caries, it can be applied to the buccal port, the caries of the upper and lower molar buccal buccal. Because.

In the above, the first to sixth bristles (11) (12) (13) (14) (15) and (16) are each of the caps (b1, c2) (b2, c1) (b3, c4) (b4). (c3) (b5, c6) (b6, c5) (b7, c8) (b8, c7) (b9, c10) (b10, c9) (b11, c12) (b12, c11) can be straight straight lines 9 and 10, each of the wings (b1, b2) (b3, b4) (b5, b6) (b7, b8) (b9, b10) (b11, b12) and wings Parent (c1, c2) (c3, c4) (c5, c6) (c7, c8) (c9, c10) (c11, c12) are "V" shaped to correspond to each subsphere and each triangle of the molar occlusal surface It is preferable to form a straight line or curve because it is formed while forming.

As shown in FIG. 3, the second bristle 12 of the first half I is formed with a gentle curved surface in which both the rear wing hairs b4 and c4 are high and the center is asymmetrically low.

A central hair a2 protrudes from the center, and first half auxiliary hairs d1 and e1 are formed on both sides of the central hair a2.

The first half auxiliary (d1) (e1) is formed to protrude while forming a rectangle, while protruding to the same height as the height of the center hair (a1, a2, a3) effectively brushing the buccal opening of the upper and lower molar stenosis. To make it possible.

In addition, when brushing the upper and lower molar buccal surface, it is possible to improve the cleanliness of the buccal buccal sphere by cooperating with the protruding portion of the central hair a1, a2, a3 when brushing in the left and right directions based on the toothbrush head 10. .

The first and third bristles 11 and 13 of the first half I are also formed in the same shape as the second bristle 12 with only a difference in width.

In the above, the first to third bristles 11, 12, 13 are both higher than the center, and asymmetrically curved about one quarter of one direction with respect to the central axis.

In the above, the molar tooth as shown in Figure 6, when the standard length of the crown is 7.5mm, the linear distance from the buccal alveolar to the buccal cusp tip is 8mm, so that the entire second bristle 12 In order to make the first to third bristles (11) (12) and (13) coincide with the curved surface of the narrow surface because the curved surface of the narrow surface forms an asymmetrical surface centered on a quarter point in one direction As described above, an asymmetric curve was achieved.

In the above, the first to third bristles 11, 12, 13 also have an asymmetry about a quarter point in one direction with respect to the central axis since the narrow surface of the molar forms an asymmetric curved surface with a maximum wind melting part below. Curves.

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As shown in FIG. 4, the fifth bristle 15 of the second half (II) has both frontal wings b9 and c9 horizontally, and each third portion of the second half of the second half d2 and e2 is horizontal. (Approximately 2.3mm in the lateral and lateral direction) up to the center and the central part, and finally a more upwardly inclined shape toward the center and the central part to form a line connecting the pointed bristles at the center and the center part. To form.

The central hair a5 protrudes from the center, and the rear half auxiliary hairs d2 and e2 are formed on both sides of the central hair a5.

The fourth and sixth bristles 14 and 16 of the second half portion II are also formed in the same shape as the fifth bristle 15 with only a difference in width.

In the above, the second half auxiliary hair (d2) (e2) is formed to be inclined to both sides with a lower point 1-2mm from the top of the center hair (a4, a5, a6) as the center point, the height is lowered, The secondary hairs (d2) (e2) are intended to effectively brush the buccal and lingual mouth of the upper and lower molar occlusal surfaces.

In the above, when brushing the head 10 in the forward and rearward direction when brushing by the second half of the auxiliary (d2) (e2) can improve the suitability to the occlusal buccal port and the lingual port can improve the cleanliness, This is because the suitability for occlusal buccal and lingual mouths can be improved when brushing in the left and right directions.

And, the height of the second half auxiliary hair (d2) (e2) is the center point of the lower 1-2mm point from the top of the center hair (a5), inclined to both sides so that the height is lowered, narrowing from the center and lingual direction Adapt to the buccal and lingual spheres that rise inclined.

In the above, the first to sixth bristles (11) (12) (13) (14) (15) (16) may also be formed of a plate body, which may be formed of a rubber plate body, and formed of a hair bundle as necessary. Can be.

Between each bristle 11, 12, 13, 14, 15 and 16 of the head 10, a protective wall 18 made of plastic or rubber is formed as shown in FIGS. 11 and 12. Allow each toothbrush brand to be formed.

The deflection wall 18 has a height of about 3 mm on the face of the head 10 to reduce the tilting of each bristle 11, 12, 13, 14, 15, 16, The tilt is reduced.

13 and 14, the first cushion layer 19 having a dome shape is formed on the head 10, and the second cushion having a band shape is formed on the first cushion layer 19. The layer 19a is further formed, so that the first cushion layer 19 is made of soft rubber and the second cushion layer 19a is made of very soft rubber.

In the above, the reason why the second cushion layer 19a is made of softer rubber than the first cushion layer 19 is to minimize foreign matter on the soft inner mucosa.

The first and second cushion layers 19 and 19a are used to reduce pain and reduce facial pain of users who complain of jaw joint (temporomandibular) disorder due to muscle (pain muscle) origin caused by mental stress. Users in the job can help to recover facial muscle fatigue.

According to the present invention configured as described above, the first to third bristles (11) (12) (13) of the first half (I) and the fourth to sixth bristles (14) (15) (16) of the second half (II) In order to effectively brush the mandibular molar occlusal surface and narrowing, it will be effective in preventing tooth caries and removing food residues between teeth and gums.

In addition, the protective wall 18 is formed between the bristles 11, 12, 13, 14, 15, and 16, thereby making it possible to imprint the brand of the toothbrush. Can be reduced.

In addition, the first and second cushion layers 19 and 19a are protruded from the upper part of the head 10, so that they have a cheek massage function, and patients with jaw joint disorders (particularly, mental stress) Cheek massage and stretching at the same time can help to relax the muscles in excessive muscle tension caused by mental stress, reduce pain in the jaw joint, and talk with others (e.g. teachers, etc.) ), The facial muscle stretching effect during brushing can help to recover facial muscle fatigue.

First to sixth bristles (11) (12) (13) (14) (15) (16) having a "v" shape and a "X" shape are formed on the head (10) of the present invention. At the same time, the center hair (a1) (a2) (a3) (a4) (a5) (a6) is formed in the center of each bristle (11) (12) (13) (14) (15) (16), Each central hair a1 (a2) (a3) (a4) (a5) (a6) should be made to coincide with six of the first and second molars as shown in FIG.

Therefore, the central hair (a1) (a2) (a3) (a4) (a5) (a6) can make the mesial cavity (myotropia), the central fovea (center fovea), the centrifugal fossa (centrifugal lobe) more clean. The front, rear wing, and auxiliary hair of each bristle can make the buccal port, the lingual port, the buccal ball, the triangular ball, and the buccal port of the buccal surface be more cleanly brushed.

Wings (b1, b2) (b3, b4) (b5, b6) (c1, c2) (c3, c4) (c5, c6) of the first half (I) at the time of brushing upper and lower molar buccal buccal The tooth surface increases the contact area.

The width of the wing hairs b2, b3, b4, b5, c2, c3, and c4, c5 is less than 2 mm to allow for more effective brushing of the tooth and the space between the teeth with a lot of food residues.

(B2, b3) (b4, b5) (c2, c3) (c4, c5) to cooperate with each other as shown in Figures 7 and 8 to effectively brush the contact point between the teeth, In the application of mandibular molar stenosis, the space between the upper and lower mandibular contact points of the first and second molar teeth and the interdental space (interdental papillary area) is based on the distance from the area of the dental alveolar (the crown, the root boundary) to the adjacent dental alveolar. The space between the maxillary first molar and the maxillary second molar is 2 mm, and the area between the mandibular first molar and the mandibular second molar is 2,2 mm.

However, the alveolar gland is covered by the gums so that the actual width of the buccal tooth and the space between the teeth is based on the width of the intergingal gingiva (the crown, the gum boundary), and the width between the adjacent teeth is greater than the width between the alveolar lines. It is narrowly formed, and the width between the teeth and the tooth becomes narrower as it goes upwards, and by making the width of each wing hair b2, b3 (b4, b5) (c2, c3) (c4, c5) 2 mm or less, To facilitate the application of the space between the teeth, to improve the cleanliness of the tooth and the interdental spaces (interdental nipple areas) where food residues are deposited, and to effectively brush the buccal contact points where food indentation occurs. to be.

The caps b2 and c2 allow for effective brushing of the upper and lower mandibular molar posterior areas (centrifugal).

The wing hairs b7 to b12 (c7 to c12) of the second half (II) have a "V" shape in which the mouth and the triangle shape extending from the mesial part, the center part, and the centrifugal part to the occlusal and lingual directions are formed. It is effective to brush the upper and lower molar occlusal surface of caries more frequently, and to improve accessibility compared to the general toothbrush.

For example, when brushing in the forward direction, the front wing hairs (b7, b9, b11) (c7, c9, c11) allow for effective brushing of the cusp mesial and distal triangles, Brushing on the cusp distal side and mesial triangle by the rear wing (b8, b10, b12) (c8, c10, c12) when brushing, and brushing effectively when brushing in the left and right directions do.

In the above, the hairs b3, b4 (c3, c4) (b9, b10) (c9, c10) are widened to form a wide "V" shape, because the bulge starts at the central fovea. This is to make the angle between the anterior and the lower molar occlusal occlusal surface of the actual tooth (natural tooth) at a wider angle between the center and the triangle and the triangle starting from the centrifuge.

The front and rear subcaps d1, e1 (d2, e2) are formed between each of the caps b3 and b4, c3 and c4, b9 and b10 and c9 and c10, respectively. Parent (d1, e1) can be applied to the buccal opening of the buccal surface with the central hair (a2) when brushing the upper and lower molar buccal surface in the left and right direction relative to the head 10, to improve the cleanliness, The latter half of the auxiliary (d2, e2) is applied to the occlusal buccal and lingual mouth when brushing the upper and lower molar occlusal surface forward, rearward or left and right with respect to the head 10 to improve cleanliness. can do.

In the above, the first and second subheads d1 and e1 have the same height as the center head a2, and the second and second subheads d2 and e2 have a center point 1-2 mm below the top of the center head a5. Inclined to both sides so that the height is lowered.

In other words, the first half (I) of the head 10 is an asymmetric curve connecting the bristle end line on the basis of the crown length contour from the mandibular first molar buccal cervical to the buccal cusp tip as shown in FIG. Ideal tooth fit for upper and lower molar stenosis can be achieved and effective brushing on upper and lower molar teeth and gum boundaries (gingival lines).

For reference, when applying the mandibular first molar stenosis using the curve connecting the bristles' end points based on the maxillary first molar stenosis, the maxillary first molar is more linear than the mandible first molar, so The fitness is poor and the cervical fitness is also poor.

The latter part (II) is the actual splint on the natural tooth, the mandibular molar occlusal surface, and the lateral spheres leading from the center to the cusp tip to the cusp tip, and the triangles leading from the center to the near and distal marginal ridges. Some, together with the lateral and lingual or bulges, are partly together and partly adjacent to each other. Afterwards, to the shape leading up to the cusp, muscle, and centrifugal ridges, From the top of the center hair (a5), form the same height as the posterior hairs (d2, e2) from the center of the head to the bottom of the rear hairs (d2, e2) from the center of 1-2mm downward. It is inclined downward according to depth (1.5mm) and width (5mm). It is formed horizontally out of the depth and width of the cusp. Allows you to brush your mouth effectively.

The first half (I) is based on the width of the bristles in the left and right direction 8mm with respect to the head 10, this 8mm width is a straight distance from the alveolar line of the upper and lower first molar buccal surface to the buccal cusp tip. To respond.

The second half (II) is based on the head 10, the left and right of the bristle width of the reference 9mm, this 9mm width is narrowed to the 5mm, the distance between the upper and lower molar occlusal buccal cusp, lingual cusp In addition, 2mm is added to each of the cusp widths of the lingual cusps, and 2mm is added, and a cusp may be caused by chewing. Therefore, it is preferable to add an additional 2mm of each 1mm to a total of 9mm in consideration of widened narrow and lingual cusps.

Therefore, the second half (II) is a brush that is suitable for all occlusal surfaces from adolescents to adults.

The length of all bristles in the front and rear half (I) and (II) is 1.7 cm. The reason for this is that 10 mm, which is the maxillary first molar root, and 0.9 mm, which is the maxillary second molar, at the maxillary first molar. This is because the marginal ridges of the occlusal surface and the distal marginal ridges of the maxillary second molar occlusal surface are subtracted by 1 mm each.

Then, the lower first molar myopic diameter (11.0 mm) and lower second molar myopic diameter (10.5 mm) were added to the mesial margin ridge of the mandibular first molar occlusal surface and the centrifugal margin ridge width of the mandibular second molar occlusal surface. Is 1.95 cm minus the length of the maxillary molar in comparison to the length of the long mandibular molar in determining the length of the bristles, which allows for more elaborate bristle contact to the tooth surface when brushing. As a phenomenon of widening (opening) occurs, it is preferable to set it to 1.7 cm, which is a length suitable for brushing the first and second molar teeth.

The interval between each of the center hairs (a1, a2, a3, a4, a5, a6, a7) is preferably set to 2 mm, on the actual tooth (natural teeth), from the mesial to the central fossa of the mandibular molar occlusal surface, Because it coincides with the distance to the centrifugal, the ideal approach allows for improved cleanliness.

1 is a view showing the occlusal surface of the molar tooth,

2 is a plan view of the present invention,

Figure 3 is an illustration of the second bristles of the first to third bristles according to the invention,

4 is an exemplary view of a fifth bristle among the fourth to sixth bristles according to the present invention;

5 is an exemplary view of a central hair according to the present invention;

Figure 6 is a side view of the molar for showing an application example of the third bristles of the first to third bristles according to the present invention,

7 and 8 is a view showing the molar buccal surface for showing an application example of the toothbrush according to the present invention,

9 is an illustration of another embodiment of the first to third bristles in accordance with the present invention;

10 is an illustration of another embodiment of the fourth to sixth bristles according to the present invention;

11 is a plan view of another embodiment according to the present invention;

12 is a plan view of another embodiment according to the present invention;

13 is a plan view showing the upper structure of the toothbrush head according to the present invention,

14 is a front view of FIG. 9.

* Explanation of symbols on the main parts of the drawings *

10: head

11,12,13,14,15,16: first to sixth brush heads

18: defense wall

19: first cushion layer

19a: second cushion layer

a1, a2, a3, a4, a5, a6

b1, b3, b5, b7, b9, b11, c1, c3, c5, c7, c9, c11: front wing

b2, b4, b6, b8, b10, b12, c2, c4, c6, c8, c10, c12: rear wing hair

d1, e1: First half assistant

d2, e2: second half

Ⅰ: First half

Ⅱ: second half

Claims (19)

First to sixth bristles having an "X" shape in the left and right directions of the toothbrush head about the central center hair are arranged side by side in the front and rear directions of the toothbrush head; The center hair of each wing hair, In the shape of a crisscross, the center has a conical shape and protrudes 1-2mm, Toothbrush, characterized in that to form a circular shape, the center is conical shape, and selected one of the protruding 1-2mm. The method of claim 1, wherein the bristles, That each of the caps is formed in a straight line, Toothbrush, characterized in that any one selected from the wide brim formed as each wing head is formed to be wider to the outside. The method according to claim 1 or 2, The width between the front and rear blades of the second and fifth bristles is formed to be wider than the width between the front and rear blades of adjacent bristles, The first to third bristles are both higher than the center, and formed to form an asymmetrical curve about one half of one direction with respect to the central axis; The first half of the second bristles are formed between the front wing and the rear wing hair, and the first half of the hair is formed at the same height and width as the center of the center hair and is spaced apart by the width of the center hair center; Toothbrush rear portion is formed between the front, rear wing hair of the fifth bristles, The rear half supporter is characterized in that the height is formed to gradually decrease toward the outside. The method according to claim 1 or 2, The fourth to sixth bristles are both horizontal, Line from the central gyrus to oblique and lingual port lengths up to one-third of the length, towards the center and to the center, and finally to a more inclined shape toward the center and to the center. Toothbrush, characterized in that formed to form. The method according to claim 1 or 2, Between the respective bristles, the bristles reduce the inclination and allow the protective wall to protrude, form the protective wall to form a brand, A toothbrush, wherein a first cushion layer having a dome shape is formed on an upper portion of the toothbrush head, and a second cushion layer that is softer than the first cushion layer is formed while forming a band shape on the upper portion of the first cushion layer. delete delete delete delete delete delete delete delete delete delete delete delete delete delete

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