WO2006018927A1 - 歯ブラシ - Google Patents
歯ブラシ Download PDFInfo
- Publication number
- WO2006018927A1 WO2006018927A1 PCT/JP2005/011141 JP2005011141W WO2006018927A1 WO 2006018927 A1 WO2006018927 A1 WO 2006018927A1 JP 2005011141 W JP2005011141 W JP 2005011141W WO 2006018927 A1 WO2006018927 A1 WO 2006018927A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- hair
- hole
- toothbrush
- diameter
- circular
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
- A46B3/08—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier by clamping
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B3/00—Brushes characterised by the way in which the bristles are fixed or joined in or on the brush body or carrier
-
- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B9/00—Arrangements of the bristles in the brush body
- A46B9/02—Position or arrangement of bristles in relation to surface of the brush body, e.g. inclined, in rows, in groups
- A46B9/04—Arranged like in or for toothbrushes
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- A—HUMAN NECESSITIES
- A46—BRUSHWARE
- A46B—BRUSHES
- A46B2200/00—Brushes characterized by their functions, uses or applications
- A46B2200/10—For human or animal care
- A46B2200/1066—Toothbrush for cleaning the teeth or dentures
Definitions
- the present invention relates to a toothbrush suitable for treating or preventing periodontal disease and gingivitis, which can obtain a soft and comfortable feeling of brushing, a feeling of massaging and an excellent plaque removing power. Is.
- toothbrushes using animal hairs have been known as toothbrushes having soft thin hairs.
- This is a bundle of animal hairs with a thickness of about 1 to 8 mils.
- the hair is a natural hair, and the quality is not as stable as that of synthetic resin hair.
- the tip ultrafine toothbrush As a toothbrush for the treatment or prevention of periodontal disease and gingivitis, the tip ultrafine toothbrush is well known, and this tip ultrafine toothbrush has a tapered shape with a sharp and sharp tip. Because of the use of hair, gingivitis was severe! / Patients sometimes felt pain due to stimulation of the hair tips.
- Patent Document 1 Japanese Patent Application Laid-Open No. 4-261605 discloses that the hair filling rate (packing) inside the flock hole is reduced by reducing the cross-sectional area of the bottom of the hole depth with respect to the flock hole opening.
- a toothbrush is shown in which the fatter) is raised to increase the flocking strength and prevent the brush free end from spreading.
- the bristle filling rate is increased too much, the flocking needle may be easily broken at the time of flocking, and the toothbrush head part may be whitened.
- Patent Document 2 Japanese Utility Model Publication No. 63-958278 discloses a toothbrush in which a part of a brush bundle has a bristle force for mixing thick and thin hairs. There is no study on the optimum hair diameter. If the combined thick and thin hair is not appropriate, thick hair may be noticeable during brushing, and pain may be felt due to irritation of the hair tip, which may not be suitable for users with gingivitis.
- Patent Document 3 Japanese Patent Laid-Open No. 2-98310 discloses a toothbrush in which a bristle (hair for hair) having a spherical tip and a bristle with a rounded tip are flocked.
- the force Bristle diameter is not specified.
- This toothbrush has a spherical tip and is larger than the bristle base.
- it is difficult to efficiently clean narrow gaps such as between teeth with a weak brushing pressure.
- Patent Document 4 Japanese Patent Application Laid-Open No. 6-1419273 shows a synthetic resin filament having a tapered tip, but since this tip has a sharp tip, it has a narrow gap. The power that is suitable for cleaning the hair immediately and moderate gum massage. Some users do not like the sharpness of the sharp hair. In addition, since the sharpening of the bristles is expensive, there is a problem that the toothbrush becomes expensive.
- Patent Document 5 Japanese Utility Model Publication No. 5-68328
- a reduced diameter portion is formed in the intermediate portion in the depth direction of the flocked hole, and the hair filling rate is partially increased by the reduced diameter portion.
- a toothbrush that has been raised to ensure high flocking strength is shown.
- the configuration of the mold used for molding (especially the configuration of the pins) must be complicated, and the manufacturing cost and manufacturing technology are difficult to say.
- Patent Document 6 Japanese Patent Laid-Open No. 8-194273 discloses a head portion in a flocking process. In order to suppress tooth deformation and to provide a toothbrush with high flocking strength, a toothbrush that specifies the thickness between the flocked base and the bottom of the flocked hole is shown. Thorough consideration has been made.
- Patent Document 1 Japanese Patent Application Laid-Open No. 4-261605 (full text, all figures)
- Patent Document 2 Japanese National Publication No. 63-95828 (full text, all figures)
- Patent Document 3 Japanese Patent Application Laid-Open No. 2-98310 (full text, all figures)
- Patent Document 4 Japanese Laid-Open Patent Publication No. 6-141923 (full text, full diagram)
- Patent Document 5 Japanese Utility Model Publication No. 5-68328 (full text, all figures)
- Patent Document 6 Japanese Unexamined Patent Publication No. Hei 8-19423 (full text, all figures)
- Toothbrushes with soft bristle that have been used in the past are generally composed of fine brushes and brushes with a diameter. It is difficult to get a good brushing power.
- the present invention has been made to solve the above-described problems, and can provide a soft and comfortable touch feeling and massage feeling and an excellent plaque removing power.
- the first object is to provide a toothbrush suitable for the treatment or prevention of severe or mild periodontal disease / gingivitis.
- a second object is to provide a high-quality toothbrush having high flocking strength and less bleed at the head where hair loss does not occur.
- the toothbrush according to claim 1 is a toothbrush in which synthetic resin bristles are bundled into a bristles, and the bristles are planted in a flock hole of a head portion.
- the cross-sectional area is a circular hole with a diameter of 1.8 mm or more or a size equivalent to the circular hole, and the cross-sectional area of the synthetic resin hair to be implanted in the flocking hole is a circular hair with a diameter of 0.127 mm (5 mil) or less or The size is equivalent to the circular hair.
- the toothbrush according to claim 2 is the toothbrush according to claim 1, wherein a cross-sectional area of the synthetic resin bristles is a circular bristles having a diameter of 0.12 mm (4 mil) or less or a size corresponding to the bristles.
- the filling rate of the hair into the flocked hole is 70 to 95%, and the flocked density is 45% or more.
- the bristle filling rate is the cross-sectional area of the actual flock obtained by subtracting the cross-sectional area of the flat line into which the cross-sectional area force of the flocked hole is also driven, and the brush flocked in the flocked hole.
- BZA the total cross-sectional area
- the flocking density is a value given by (total flocked hole cross-sectional area Z flocked area) X 100 [%].
- “planted area” means the area of a region obtained by connecting the outer periphery of the group of planted holes formed on the planted surface of the head portion with a straight line (JIS S 3016).
- the toothbrush according to claim 3 is the same as the toothbrush according to claim 1, wherein the cross-sectional area of the synthetic resin bristles is a circular bristles having a diameter of 0.102-0.127 mm (4-5 mils) or It is characterized by having a size corresponding to the circular hair, a filling rate of the hair into the flocked hole of 70 to 95%, and a flocking density of 40% or more.
- the toothbrush according to claim 4 is the toothbrush according to claim 3, wherein a circular bristle having a diameter of 0.127 mm (5 mil) or a circular bristle is inserted into at least 5% of the flock holes among all flock holes. It is characterized by the planting of synthetic resin bristles that also have a cross-sectional area force equivalent to bristles.
- the toothbrush according to claim 5 is the toothbrush according to claims 1 to 4, wherein a ratio hZd of a hole diameter d and a hole depth h of the flocked hole is in a range of 1.7 to 2.5. It is characterized by
- the invention according to claim 6 is characterized in that, in the inventions according to claims 1 to 5, the shortest distance between adjacent flock holes is 0.1 to 0.4 mm.
- Synthetic resin hair with a diameter of 0.127 mm (5 mil) or less is used as the hair to be implanted in the flock hole. 0. If it is thicker than 127 mm (5 mil), it will be too stiff, too hard for periodontal and gingivitis patients, and it will be difficult for the hair bundle to bend and the hair tips will not reach the fine parts. . When the diameter is 0.127 mm (5 mil) or less, it is soft and comfortable to touch, and can exert high plaque removing power to every corner of the oral cavity even with a weak cleaning pressure. It is more desirable to round off the tip of the hair so that it will be less likely to cause pain when it touches the gum.
- a diameter of 0.12 mm (4 mil) or less, more preferably 0, is given priority to gentle contact comfort.
- 05 08 ⁇ 0.12mm (2 ⁇ 4mil) is desirable.
- a diameter of 0.102 to 0.127 mm (4 to 5 mil) is preferable. If it is in the range of 0.12 to 0.127 mm (4 to 5 mil), a toothbrush that is comfortable against the gums with a good massage feeling can be obtained.
- the cross-sectional shape of the bristle is not particularly limited, and the force is mainly circular.
- the force is mainly circular.
- hair having a cross-sectional shape such as a triangle, a quadrangle, a hexagon, and a petal, or a combination of these.
- a shape in which the overall appearance of the hair is a wave shape, a twist shape, a jagged shape, etc., or a combination thereof.
- the hair material can be any synthetic resin that has been used in the past.
- Polyamide eg, nylon 6-12, nylon 6-10, 12 nylon, etc.
- polyester eg, polyethylene
- Terephthalate polypropylene terephthalate
- polybutylene terephthalate polypropylene
- elastomer polypropylene
- elastomer polypropylene
- Antibacterial agents are already known and are not particularly limited.
- antibacterial agents include zinc oxide or a solid solution of zinc oxide and aluminum oxide, and cationic fungicides such as silver ceramics, benzethonium, benzalkonium, cetylpyridium, and chlorhexidine. Can do.
- the diameter of the flocked hole is 1.8 mm or more in diameter, more preferably 1.8 to 2 in order to compensate for the weakness of the hair due to the thin hair bundle, and to obtain a high brushing feeling and a moderate massage feeling. It is recommended to use a 6mm round hole or a deformed hole with a cross-sectional area equivalent to that of the circular hole. If the hole diameter force is reduced and the pitch between the holes is reduced to make the hair denser, it is possible to bring the hair to an appropriate range to some extent, but the productivity decreases. On the other hand, if the hole diameter is too large, the number of flocked hairs will increase and the hair bundle will spread, which will reduce the ability to enter narrow gaps even for small diameter hairs. Therefore, the operability in the oral cavity tends to be poor. Therefore, it is desirable to set the range corresponding to the above hole diameter.
- the filling rate of the hair filling hole is about 70 to 95%.
- the hole shape of the flocked hole is preferably circular, but a polygonal hole such as a square hole or other irregular holes But you can.
- a single type of flocking hole may be used, but a plurality of types of flocking holes having different hole diameters and Z hole shapes may be used.
- the depth of the flocked hole affects the flocking strength, and therefore requires a certain depth.
- the hole depth is shallow, the hair bundles tend to spread and the tendency of poor hair growth tends to be seen.
- the larger the hole diameter the more hairs that can be planted in one hole. It appears strongly.
- the spread of the hair bundle is not preferable in appearance, and there is a problem that the hair ends enter a fine gap.
- the hole depth is too deep, the head will become thicker than necessary, and operability in the oral cavity will deteriorate.
- the present inventors have conducted various experiments.
- the hole depth h is 1.7 to 2.5 times the hole diameter d, that is, the hole depth.
- the hole diameter obtained by replacing the hole diameter d with a circular hole having the same cross-sectional area may be adopted.
- the vertical cross-sectional shape of the flocked hole may be a columnar hole whose cross-sectional shape does not change from the top edge of the hole to the bottom surface of the hole, but may be any arbitrary shape such as a hemispherical bottom surface or a chamfered bottom portion. Hole shape can be adopted. In general, a cylindrical hole having a chamfering process of about 0.3 mm on the bottom surface is preferable.
- any hole arrangement such as a staggered arrangement or a combination arrangement thereof can be adopted.
- the distance between holes the distance between the hole edges of adjacent flock holes
- the shortest distance between the holes is in the range of 0.1 to 0.4 mm, and at least a part of the flocked hole array is a staggered array.
- the flocking density is greatly related to the feeling of brushing and brushing of the toothbrush.
- the flocking density is preferably 40% or more, more preferably 40 to 55%. If the flocking density is too high, the ability to enter the gap decreases.
- the separation distance between the flock hole located on the outermost periphery and the outer peripheral edge of the head portion is sufficient if there is a minimum width that can ensure an appropriate strength, about 0.5 to 1.5 mm. Preferably, it may be about 0.5 to 1. Omm.
- 7mm Mokoshi of flocked hairs bundle group to the head portion (brush) is in the range in which 55 N / cm 2 or less and range preferred for gesture et 30 ⁇ 50N / cm 2 to the "softer" I like it. If the pelvis is weaker than this, it will be too soft and will interfere with cleaning. If the pelvis is too strong, it will be too hard as a toothbrush for periodontal disease and gingivitis.
- the hair length (brush length) of the group of hair bundles that are planted is preferably in the range of 7.5 to 13 mm.
- the hair length is shorter when the head portion is smaller, and the hair length is shorter when the head portion is larger. It is desirable to make it longer.
- Trimming of the brush that has been implanted may be an orthodox straight cut (flat cut), but may be any shape such as a dome shape, a mountain valley shape, or an uneven step shape. If the upper edge corner of the brush is chamfered like a dome force, the touch of the hair tip can be made gentler. In this case, it is preferable to chamfer the upper edge corner of the brush in the range of lmmR to 10mmR and cut it into a dome shape. It is preferable to round the hair ends after cutting and apply Z polish polish.
- the flexural modulus is as high as 500 to 3000 MPa, preferably 1000 to 2000 MPa.
- Force used Polypropylene resin is preferable in terms of moldability and cost. In the case where importance is attached to transparency, for example, PCTA resin, which is a kind of polyester resin manufactured by Eastman, USA, is preferable in terms of cost and dentifrice resistance.
- the soft resin material is hardness (JIS K 6253 hardness test, test condition JIS A).
- a thermoplastic elastomer, a natural rubber thermoplastic elastomer, a fluorine thermoplastic elastomer, or a trans polyisoprene thermoplastic elastomer can be used.
- Toothbrush needles are appropriately manufactured by using the above-mentioned hard resin alone or in combination with a hard resin and soft resin, but due to the physical properties required as a toothbrush material, price, and mutual compatibility,
- a hard resin preferred by polypropylene resin is combined with a soft resin, using polypropylene resin as the hard resin and a polyolefin-based thermoplastic elastomer or polystyrene-based thermoplastic elastomer as the soft resin. It is preferable to use one.
- thermoplastic elastomer As a polyolefin-based thermoplastic elastomer, EPDM (ethylene propylene terpolymer) is selected as the rubber component, and polypropylene resin is selected as the hard component, and these are blended to partially or completely cross-link. Things are used. Further, instead of the thermoplastic elastomer, a thermosetting silicone resin by two-component mixed injection may be used.
- EPDM ethylene propylene terpolymer
- polypropylene resin is selected as the hard component, and these are blended to partially or completely cross-link. Things are used.
- thermoplastic elastomer instead of the thermoplastic elastomer, a thermosetting silicone resin by two-component mixed injection may be used.
- the structure of the head part in which the hair bundle is implanted! / A wrinkle may be a multilayer structure combining a hard resin and an elastic body, or a hinge structure at least partially. Good.
- the material of the elastic body is the same as that of the soft resin.
- various structures such as one in which at least a part of the head part bends or one in which the entire head part is bent can be used.
- the flat wire used for planting the bristles is generally a force that uses a flat plate of brass or aluminum in terms of productivity and cost. It is only necessary that a hair bundle can be driven into the pores. Material (metal, plastic, natural material, etc.), dimensions, shape, etc. can be selected arbitrarily.
- the length of the flat wire is not particularly limited, but it is desirable that the length of the hair can be reliably held and the toothbrush head portion is not whitened at the time of flocking.
- the length should be 0.3 to 0.5 mm longer than the long axis length of the flocked hole in the flat wire driving direction.
- the force at which the driving angle of the flat wire can be freely selected.
- the implantation angle of the flat wire does not have to be the same for all flock holes, but a combination of different implantation angles can be used.
- the used bristles are spun as a bundle of hairs after being drawn to a predetermined bristles diameter, which can be done in the same manner as in a normal toothbrush.
- bundle this hair bundle with paper, etc. cut it to a fixed size (about 25-40mm), set this cut piece on the flocking machine, and comb the specified number of hairs with a picker While removing the hair bundle, fold it in half with a flocking needle and drive it into the flocking hole of the toothbrush head with a flat wire. After that, trim the tip of the brush into any shape with a cutter, round off the tip of the brush, and polish it to make a toothbrush with the desired specifications.
- the cross-sectional area of the flocked hole is equivalent to a circular hole having a diameter of 1.8 mm or more, and the cross-sectional area of the synthetic resin bristles implanted in the flocked hole is 0 1
- by making thin hairs dense it is possible to achieve high plaque removal power to every corner of the oral cavity even with weak brushing pressure, and to make a toothbrush that can comfortably pine surge with weak gums and foam well. it can.
- brushes for synthetic resin the quality is stable and it can always be used with a clean sensation, and toothbrushes for periodontal diseases and gingivitis can be provided at the same cost as ordinary toothbrushes. it can.
- the cross-sectional area of the synthetic resin bristles is equivalent to a circular bristles having a diameter of 0.102 mm (4 mil) or less, the filling rate of the bristles in the flock holes is 70 to 95%, the flocking density Since it is 45% or more, even when brushed with a weak wiping pressure (150 g or less), it is high and can exhibit plaque removal power. Therefore, the toothbrush is suitable for use particularly in patients with severe periodontal disease or gingivitis.
- the cross-sectional area of the synthetic resin bristles is 0.1 mm in diameter.
- 02-0. 127mm (4-5mil) circular hair equivalent, flocking density of 40% or more, and at least 5% of all flocking holes should be equivalent to 0.1127mm (5mil) circular hair
- Synthetic greaves are planted, so they are brushed with a general brush pressure (200-300g), but the hair tips hit the tooth surface properly, providing a high level of massage and appropriate brushing for plaque removal. It can show its power. For this reason, it becomes a toothbrush suitable for use especially for patients with mild periodontal disease and gingivitis. In addition, it has excellent brush durability because it has a bristle and waist, and even if it is brushed with the same brushing pressure as a healthy person, the tip of the hair will open immediately.
- the ratio hZd of the hole diameter d to the hole depth h of the flocked hole is in the range of 1.7 to 2.5, High flocking strength can be achieved while using flocking holes, and the life of the toothbrush can be extended by eliminating hair loss.
- the toothbrush according to claim 6 since the shortest hole distance between adjacent flock holes is 0.1 to 0.4 mm, further densification can be achieved. The effect can be further improved.
- FIG. 1 shows a first embodiment of a toothbrush according to the present invention, where (a) is a plan view of the head portion, (b) is a front view of the head portion, and (c) is a bristle. A schematic plan view of the bundle, (d) is a cross-sectional view of the flock hole.
- FIG. 2 shows a second embodiment of the toothbrush according to the present invention, wherein (a) is a plan view of the head portion, (b) is a front view of the head portion, and (c) is an abbreviation of a hair bundle. A plan view, (d) is a cross-sectional view of the flock hole.
- FIG. 3 shows a third embodiment of the toothbrush according to the present invention, wherein (a) is a plan view of the head portion and (b) is a cross-sectional view of the flocked hole.
- FIG. 4 is a graph showing a test result of plaque removal power at 150 g load of a toothbrush for a severe periodontal disease patient according to the present invention.
- FIG. 5 is a graph showing a test result of 7 mm bristle strength of a toothbrush for a severe periodontal disease patient according to the present invention.
- FIG. 6 is a graph showing test results of plaque removal power at 200 g load of a toothbrush for patients with mild and severe periodontal disease according to the present invention.
- FIG. 7 is a graph showing a test result of a tip opening ratio of a toothbrush for a mild and severe periodontal disease patient according to the present invention at a load of 200 g.
- FIG. 8 is an explanatory diagram of a method for calculating the opening ratio of the bristles, where (a) shows the state of the brush before brushing, and (b) shows the state of the brush after brushing.
- FIG. 9 shows a specific shape example of a toothbrush handle constructed by applying the present invention, in which (a) is a plan view and (b) is a side view.
- FIG. 1 shows a first embodiment of a toothbrush according to the present invention.
- the toothbrush according to the first embodiment is an example of a toothbrush suitable for use in severe periodontal disease patients or gingivitis patients.
- 1 is a head portion
- 2 is a flocked surface
- 3 is a flocked hole
- 4 is a bristles
- 5 is a bunch of bundling bristles 4 and has a circular cross-sectional force with a diameter of 2.
- Omm 4-row irregular staggered arrangement (30 holes) so that the hole 3 has a flocking density of 50% and the shortest distance between the holes is 0.3 mm, and the bristles have a circular cross-sectional force of 0.12 mm (4 mil) in diameter. 4 was implanted so that the hair filling rate per hole was 85%.
- 7mm Mokoshi is about 35NZcm 2.
- the hair 4 having a diameter of 0.102 mm (4 mil) is spun by a hair extrusion molding machine and bundled into a hair bundle for flocking to a diameter of about 50 mm. .
- Om m is driven into the head part 1 with a 4-row irregular staggered arrangement (30 holes) by folding it along with a flat wire into a hair bundle 5.
- the planted brush is straight-cut to a hair length of 10 mm with a rotary cutter, and the upper edge corner of the brush is rounded with 3 mmR and dome-forced, and finally rounded to the tip of the hair.
- the toothbrush shown in Fig. 1 is applied.
- FIG. 2 shows a second embodiment of the toothbrush according to the present invention.
- the toothbrush according to the second embodiment is also an example of a toothbrush suitable for use in the same periodontal disease patient or gingivitis patient as in the first embodiment.
- the flocking holes 3 having a circular cross-sectional force of 2.3 mm in diameter are arranged in a three-row staggered arrangement (19) so that the flocking density is 65% and the distance between the shortest holes is 0.2 mm.
- hair 4 having a circular cross-sectional force of 0.0762 mm (3 mils) in diameter is planted in the planting hole 3 so that the hair filling rate per hole is 80%.
- the hair 4 having a diameter of 0.0762 mm (3 mil) is spun by a hair extrusion molding machine, and the hair bundle for flocking is bundled to a diameter of about 50 mm. .
- the hair bundle 3 with a diameter of 2.3 mm is wound into the head part 1 in a three-row staggered arrangement (19 holes) with a flat wire folded into a hair bundle 5.
- the brush is cut straight with a rotary cutter to a hair length of 9mm, and the upper edge corner of the brush is rounded with a 2mmR, dome-cut, and finally rounded at the tip of the hair, Z-polished, and the toothbrush shown in Fig. 2 And
- FIG. 3 shows a third embodiment of the toothbrush according to the invention.
- the toothbrush according to the third embodiment is an example of a toothbrush suitable for use in patients with mild periodontal disease or gingivitis.
- the toothbrush according to the third embodiment has a four-row irregular lattice so that the flocking holes 3a and 3b having a circular cross-sectional force of diameter 2.
- Omm have a flocking density of 40% and a shortest distance between the holes of 0.4 mm.
- hair (not shown) with a circular cross-sectional force of 0.12 mm (4 mils) in diameter is placed in each of the 14 flocking holes 3b (open holes) around each hole. The hair was planted so that the hair filling rate was 79%.
- hairs having a diameter of 0.127 mm (5 mil) and a diameter of 0.102 mm (4 mil) were respectively spun by a hair extrusion molding machine, and used for flocking.
- the hair bundle is bundled to a diameter of about 50mm.
- the hair length is fixed to 32mm.
- the product 1 of the present invention is polished at 150 g, which is considerably weaker than the general brushing pressure (approximately 200 to 300 g) of a healthy person. However, it was confirmed that high plaque removal power can be obtained.
- the toothbrushes in Table 1 7 mm bristle strength was measured (based on JIS S 3016). The results are shown in Fig. 5.
- the general specification product 1 has a bristle strength of 73 NZcm 2 and the hardness is in the range of “normal” (60 to 85 NZcm 2 ), while the product 1 of the present invention is 36N Zcm 2 It is about half the bristle strength of the general specification product 1, and it is in the range of “soft soft” (60 NZcm 2 or less), and it has been confirmed that the contact with the gums is also soft.
- Evaluation method The following 7-step absolute evaluation was performed, and the average value of the subjects was used as the evaluation result.
- a comparative test of plaque removal power was performed on the product 2 of the present invention for mild periodontal disease patients in Table 3 and the general specification product 1 using a tooth model.
- Figure 6 shows the test results.
- the plaque removal power test was also performed under the same conditions for the product 1 of the present invention for severe periodontal disease patients (see Table 1) described above, and the results are also shown in FIG. did.
- the product 2 of the present invention for patients with mild periodontal disease is equivalent to the product 1 of the general specification even when polished with a normal normal person's brushing pressure of 200 g. It was confirmed that it has the ability to remove plaque.
- the product 1 of the present invention for severe periodontal disease patients only thin hairs with a diameter of 0.102 mm (4 mil) are used, and therefore for patients with mild periodontal disease using 4 mil hair and 5 mil hair. It was also confirmed that when brushed with the normal brushing pressure of 200g, which is weaker than the product 2 of the present invention, the tip of the hair is bent and the ability to remove plaque decreases.
- Evaluation method The following 7-step absolute evaluation was performed, and the average value of the subjects was used as the evaluation result.
- the product of the present invention 2 3 According to specifications such as the above, it is possible to obtain a toothbrush suitable for patients with mild periodontal disease, as compared with the general specification products 1 and 2, which provides a higher feeling of brushing, a soft touch of the hair tip, and a moderate feeling of mass. It was confirmed that It should be noted that the product 1 of the present invention for severe periodontal disease patients also has a low evaluation of the feeling of falling plaque because the brush has a large deflection under normal brushing pressure when the hair is thin. It was done.
- the invention 1 in Table 1 (for heavy use), the general specification product 1 and the invention 2 in Table 3 (for light use) were subjected to a test for evaluating the durability of cleaning using a model cleaning tester.
- the result is shown in Fig. 7.
- the tip opening ratio [%] is defined as a for the tip width of the brush before the start of the brush and b for the tip end of the brush after the end of the brush.
- Example 5 Using the toothbrushes according to the present invention (Examples 1 and 2) and the conventional toothbrushes (Comparative Examples 1 and 2), which have the specifications shown in Table 5, and the flocking strength due to the difference between the hole diameter d and hole depth h. An evaluation test was conducted for the fluff. The results are shown in Table 5.
- the diameter of the flocked hole is 1.8 mm or more, and the ratio of the hole diameter d to the hole depth h is hZd satisfying the condition of 1.7 to 2.5.
- the flocking strength was high and the fuzzing was excellent.
- Example 2 Using a toothbrush of the present invention specification shown in Table 6 (Example 2) and a conventional toothbrush (Comparative Example 3), a usability evaluation test was conducted. The results are shown in Table 7.
- Evaluation method The following 7-step absolute evaluation was performed, and the average value of the subjects was used as the evaluation result.
- the ratio of the diameter f of the flocked hole to 1.8 mm or more, the diameter of the hair to be used is 0.127 mm (5 mil) or less, and the ratio hZd of the hole diameter d to the hole depth h is 1
- Example 2 that satisfies the conditions of 7 to 2.5, it was confirmed that a feeling of massage and a feeling of massage were obtained.
- FIG. 9 shows a specific example of the shape of a toothbrush handle constructed by applying the present invention.
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Abstract
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Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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KR1020077003663A KR101196648B1 (ko) | 2004-08-20 | 2005-06-17 | 칫솔 |
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JP2004-240374 | 2004-08-20 | ||
JP2004240374A JP4350002B2 (ja) | 2003-12-19 | 2004-08-20 | 歯ブラシ |
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WO2006018927A1 true WO2006018927A1 (ja) | 2006-02-23 |
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PCT/JP2005/011141 WO2006018927A1 (ja) | 2004-08-20 | 2005-06-17 | 歯ブラシ |
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KR (1) | KR101196648B1 (ja) |
CN (1) | CN101010018A (ja) |
WO (1) | WO2006018927A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2008100814A3 (en) * | 2007-02-09 | 2008-11-06 | Colgate Palmolive Co | Toothbrush with low profile head |
US8152710B2 (en) | 2006-04-06 | 2012-04-10 | Ethicon Endo-Surgery, Inc. | Physiological parameter analysis for an implantable restriction device and a data logger |
US8870742B2 (en) | 2006-04-06 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | GUI for an implantable restriction device and a data logger |
US9636070B2 (en) | 2013-03-14 | 2017-05-02 | DePuy Synthes Products, Inc. | Methods, systems, and devices for monitoring and displaying medical parameters for a patient |
US9788643B2 (en) | 2011-09-14 | 2017-10-17 | Colgate-Palmolive Company | Toothbrush |
US20200163446A1 (en) * | 2018-11-27 | 2020-05-28 | Colgate-Palmolive Company | Oral Care Implement Having a Release Component |
US10702174B2 (en) | 2007-06-27 | 2020-07-07 | Integra Lifesciences Corporation | Medical monitor user interface |
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WO2011048949A1 (ja) * | 2009-10-21 | 2011-04-28 | ライオン株式会社 | 歯ブラシ |
US8314377B2 (en) * | 2009-12-23 | 2012-11-20 | Mcneil-Ppc, Inc. | Device and method for detecting plaque in the oral cavity |
CN101961167A (zh) * | 2010-09-16 | 2011-02-02 | 深圳市豪鹏科技有限公司 | 毛刷及其制造方法 |
CN105146902B (zh) * | 2011-09-14 | 2017-04-12 | 高露洁-棕榄公司 | 牙刷 |
EP4017315A4 (en) * | 2019-11-04 | 2023-05-10 | Colgate-Palmolive Company | ORAL CARE DEVICE |
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2005
- 2005-06-17 KR KR1020077003663A patent/KR101196648B1/ko active IP Right Grant
- 2005-06-17 WO PCT/JP2005/011141 patent/WO2006018927A1/ja active Application Filing
- 2005-06-17 CN CNA2005800286756A patent/CN101010018A/zh active Pending
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JP2001286341A (ja) * | 2000-04-05 | 2001-10-16 | Lion Corp | 歯ブラシ |
JP2003189940A (ja) * | 2001-12-28 | 2003-07-08 | Lion Corp | 歯ブラシ |
JP2003310354A (ja) * | 2002-02-25 | 2003-11-05 | Kao Corp | ブラシの製造方法 |
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Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8152710B2 (en) | 2006-04-06 | 2012-04-10 | Ethicon Endo-Surgery, Inc. | Physiological parameter analysis for an implantable restriction device and a data logger |
US8870742B2 (en) | 2006-04-06 | 2014-10-28 | Ethicon Endo-Surgery, Inc. | GUI for an implantable restriction device and a data logger |
WO2008100814A3 (en) * | 2007-02-09 | 2008-11-06 | Colgate Palmolive Co | Toothbrush with low profile head |
US8201298B2 (en) | 2007-02-09 | 2012-06-19 | Colgate-Palmolive Company | Toothbrush with low profile head |
US10702174B2 (en) | 2007-06-27 | 2020-07-07 | Integra Lifesciences Corporation | Medical monitor user interface |
US9788643B2 (en) | 2011-09-14 | 2017-10-17 | Colgate-Palmolive Company | Toothbrush |
US9636070B2 (en) | 2013-03-14 | 2017-05-02 | DePuy Synthes Products, Inc. | Methods, systems, and devices for monitoring and displaying medical parameters for a patient |
US20200163446A1 (en) * | 2018-11-27 | 2020-05-28 | Colgate-Palmolive Company | Oral Care Implement Having a Release Component |
Also Published As
Publication number | Publication date |
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KR20070047782A (ko) | 2007-05-07 |
CN101010018A (zh) | 2007-08-01 |
KR101196648B1 (ko) | 2012-11-02 |
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