JP2003225250A - Interdental cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interdental cleaner which can effectively inhibit stain formation at the interdentium. <P>SOLUTION: The interdental cleaner made of a material coated with a particular powder such as silica can maintain aesthetical teeth by effectively inhibiting stain formation. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an interdental cleaning tool made of a material coated with specific powder particles.

[0002]

2. Description of the Related Art Conventional interdental cleaning tools such as floss and interdental brushes are effective tools for removing plaque and food residues in the interdental part. However, as a result, there is a problem in that the surface of the tooth in the interdental part covered with plaque or the like is exposed, and stain is likely to adhere to the interdental part. Stain is a pellicle, a fungicide such as chlorhexidine, a tannin-based substance contained in tea, etc.,
It is a pigmentation on teeth that is thought to be caused by metal ions such as iron, which is a major aesthetic problem.
Stain on the interdental part is difficult to remove with ordinary toothbrushing and cleaning tools. There is a need for an interdental cleaning tool that can effectively remove stains as well as remove plaque and food residues between teeth. Conventionally, a technique of coating powder particles on a filament, which is a material for an interdental cleaning tool such as dental floss, has been disclosed in Japanese Patent Laid-Open No. 1-262857.
U.S. Pat. No. 5,967,154, U.S. Pat. No. 610.
Although disclosed in the 2050 publication and the like, it is not known what powder particles are more effective in removing stain between teeth.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an interdental cleaning tool for effectively removing stains as well as plaque and food residues in the interdental part.

[0004]

[Means for Solving the Problems] In view of such a current situation,
As a result of intensive studies, the inventors of the present invention have found that an interdental cleaning tool made of a material having specific powder particles coated on the surface is effective in maintaining the interdental stain together with plaque and food residues in the interdental part. The present invention has been completed and the present invention has been completed. That is, the present invention provides an interdental cleaning tool whose surface is coated with specific powder particles.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION The powder particles used in the present invention are not particularly limited as long as the stain removing power is 25 or more. For example, calcium carbonate, dibasic calcium phosphate
Examples thereof include dihydrate and anhydrous hydrate, aluminum hydroxide, aluminum oxide, kaolin, hydroxyapatite, silica and the like, with silica being preferred. Furthermore d
Precipitated silica having 50 of 5 μm or less, d90 of 15 μm or less, and a stain removing power of 30 or more is more preferable because it can effectively remove stain and hardly damage teeth.

[0006] The stain removing power is a value for evaluating the stain removing power of a dentifrice or an abrasive used for the dentifrice, and it is a value which is evaluated by the Indiana University-Pur.
It is measured by the method of Dr. Kleber of dueUniversity.

The interdental cleaning tool of the present invention is a tool that can be applied to the interdental part, and examples thereof include dental floss, interdental brush, interdental tape, toothpick, and the like. preferable. For the dental floss, an auxiliary tool such as a holder may be used.

The amount of powder particles coated on the material used for the interdental cleaning tool is 1 for dental floss or interdental tape.
0.1 mg to 200 mg is preferable per m, 0.5 m
More preferably g-100 mg. If it is 0.1 mg or less, the stain removing effect cannot be obtained, and if it exceeds 200 mg, it may damage the teeth. In the case of an interdental brush or toothpick, 0.05 mg to 100 mg per one is preferable.

As the material for the interdental cleaning tool, nylon,
Rayon, polyester, acetate polymer, polypropylene, polytetrafluoroethylene, polyethylene polyethylene terephthalate, wood or the like can be used in a material form suitable for the interdental cleaning tool.

As the dental floss, in the case of a multifilament, nylon, polyester and polyethylene are preferable as a material, the fineness is 550 to 1700 decitex, and the thickness per single yarn constituting the multifilament is 1 to 12 decitex. Preferably there is.
In the case of a monofilament, polytetrafluoroethylene is preferable as a material, and the fineness is preferably 600 to 1600 decitex.

The coating of the material of the interdental cleaning tool of the present invention means, for example, spraying on the surface of the material, direct coating, or mixing a desired amount of the component in advance with a wax or a binder, or dispersing it in a solvent. The prepared treatment agent may be prepared, and the component may be present on the surface of the material by an appropriate method such as spraying, direct coating, or impregnation on the material. Indicates the existing condition. However, the method is not limited to these. As for the interdental brush, a filament coated with powder particles may be processed into a brush, or the brush may be processed and then applied.

As a conventional interdental cleaning tool, there is an interdental cleaning tool made of a wax-coated material such as paraffin, carnauba wax and microcrystalline wax for the purpose of improving the insertability into the interdental part. Powder particles may be kneaded into these waxes and applied to the present invention.
Further, in order to facilitate the coating of the powdery particles on the interdental cleaning tool, an auxiliary agent such as a solvent such as polyethylene glycol or ethylene vinyl acetate copolymer or a binder can be used.

Further, sodium saccharin, stevia extract, stevioside, acesulfame K, glycyrrhizin, sucralose, perillartine, thaumatin, aspartyl phenylalanine methyl ester, xylitol, palatinose, palatinit, erythritol,
Sweeteners such as maltitol, menthol, carvone,
Anethole, vanillin, benzyl succinate, eugenol, methyl salicylate, spilanthol, limonene, ocimene, n-decyl alcohol, citronellol, α-terpineol, methyl acetate, citronellyl acetate, methyl eugenol, cionel, linalool, ethyl linalool, vanillin, thymol , Spearmint oil, peppermint oil, star anise oil, fennel oil, lemon oil, orange oil, sage oil, rosemary oil, cinnamon oil, Pimento oil, diatom oil, perilla oil, winter green oil, clove oil, eucalyptus oil, basil Fragrances such as oils and flavoring agents such as sodium chloride, magnesium chloride, magnesium sulfate and sodium bicarbonate may be used alone or in combination. In particular, when menthol, saccharin, stevioside are used alone or in combination,
It is preferable because it gives a good feeling in use.

Further, bactericides such as chlorhexidine gluconate, cetylpyridinium chloride, triclosan, isopropylmethylphenol, n-lauroylsarcosine sodium, chlorhexidine hydrochloride, benzethonium chloride and benzalkonium chloride, dextranase, amylase and protease. , Enzymes such as mutanase, lysozyme, lytic enzyme (Litech Enzyme), alkali metal monofluorophosphates such as sodium monofluorophosphate, potassium monofluorophosphate, fluorides such as sodium fluoride, stannous fluoride, tranexamic acid And epsilon aminocaproic acid, aluminum chlorohydroxy allantoinate, dihydrocholesterol, vitamin E derivative, glycyrrhizin salts, glycyrrhetinic acid, glycero Sufeto, chlorophyll, sodium chloride, Karopeputaido may be coated singly or in combination of the active ingredient, such as water-soluble inorganic phosphoric acid compounds.

Further, dicalcium phosphate dihydrate and anhydrate having a stain removing power of 25 or less, calcium phosphate, tricalcium phosphate, calcium carbonate, calcium pyrophosphate, aluminum hydroxide, alumina, silica, aluminum silicate, silica. , One or more powder particles such as insoluble sodium metaphosphate, tribasic magnesium phosphate, magnesium carbonate, calcium sulfate, polymethylmethacrylate, bentonite, zirconium silicate, hydroxyapatite, synthetic resin and crystalline cellulose. It may be coated in combination with the powder particles of the present invention.

[0016] A higher alkyl sulfate ester salt having an alkyl group having 8 to 18 carbon atoms such as sodium lauryl sulfate and sodium myristyl sulfate, an N-long chain acyl amino acid salt, an α-olefin sulfonate salt, a higher fatty acid sodium monoglyceride monosulfate, You may use 1 type, or 2 or more types of anionic surfactants, such as N-methyl-N-palmityl taulide salt. Many of these anionic surfactants have a high stain removing action by chemical dissolution, and it is particularly preferable to coat with sodium lauryl sulfate because the stain removing effect is enhanced.

In addition to the anionic surfactant, one or more nonionic surfactant amphoteric surfactants and cationic surfactants usually used in oral compositions may be used.

[0018]

The present invention will be described in more detail below with reference to examples, but the present invention is not limited thereto. In addition, unless otherwise specified, [%] indicates [% by weight].

Evaluation method (stain removing effect) A cylindrical polyacrylic rod having a diameter of 1 cm and a height of 5 cm was used as a tooth model, and artificial saliva,
0.2% chlorhexidine gluconate aqueous solution, 0.3
% Iron (III) citrate aqueous solution and black tea extract are sequentially immersed 10 times to obtain a stain-attached polyacrylic rod, and then 0.5 g of ion-exchanged water is attached to the fixed stain-attached polyacrylic rod. After the dropping, the dental floss was brought into contact with a load of 200 g, and the polyacrylic rod was mechanically moved back and forth for 100 reciprocations in the long axis direction. The area where the floss came into contact was visually compared with the color of the stain-attached polyacrylic plate. The degree of adhesion of stain was visually determined by the following judgment. 5: No adhesion at all 4: Almost no adhesion 3 ... Slightly adhered. 2 ... adhered 1 ... very attached.

(Abrasion Degree) After the stain removal effect was evaluated, the degree of abrasion was evaluated by observing the degree of scratches on the portion of the acrylic rod where the floss came into contact with a real microscope. The degree of wear was judged by the following judgment. 5: Many large deep scratches can be observed. 4 ... Large scratches can be observed. 3 ... Rarely large scratches can be observed. 2 ... Small scratches can be observed. 1 ... No scratches can be observed.

According to the above evaluation method, the stain removal effect and the degree of wear of the dental floss were evaluated. Table 1 shows the types of powder particles and the evaluation results of the stain removing effect.
The material for dental floss is a multifilament nylon filament. The coating amount of each powder particle is 20 mg per 1 m of dental floss.

[0022]

[Table 1]

As shown in Table 1, dental floss whose surface was coated with specific powder particles showed a high stain removing effect. Further, the dental floss whose surface is coated with silica is less likely to be scratched, has a stain removing power of 30 or more, and has a particle size of 50 percentile (d ₅₀ ) of 5 μm.
In the following, it was found that the dental floss whose surface was coated with precipitated silica characterized in that the _90th percentile (d ₉₀ ) of the particle size was 15 μm or less had a very low degree of scratching.

Next, the embodiment of the present invention will be further described. Example 9 Silica F was added to polyethylene filaments at a rate of 10 per 1 m.
An interdental brush coated with mg and used as a filament.

Example 10 Dental floss using the surface of a multifilament polystyrene filament coated with 30 mg of silica G per 1 m.

Example 11 A mixture of aluminum hydroxide A and carnauba wax was used to obtain 50 aluminum hydroxide per 1 m of filament.
Dental floss using a monofilament polytetrafluoroethylene filament surface coated so as to be mg.

Example 12 A dental tape in which 100 mg of polyester per 1 m of silica G was coated and used.

Example 13 A toothpick whose tip was coated with 10 mg of silica F after the wood was molded into a toothpick.

The characteristics of each silica are as follows.
It Silica F: Precipitated silica having a stain removing power of 32. Silica G: 50th percentile of particle size (d₅₀) Is 5.0 μm,
90th percentile of particle size (d ₉₀) Is 14.5 μm, and
Precipitated silica with a removal power of 45. Aluminum hydroxide A: Hydroxide with stain removal power of 30
aluminum. The interdental cleaning tool of Examples 9, 10, 11, 12, and 13 above
Also showed a high stain removal effect. Also, real
In Examples 10 and 12, if the degree of scratching is very low
That was the result.

[0030]

EFFECTS OF THE INVENTION According to the present invention, there is provided an interdental cleaning tool capable of removing dental plaque and food residues in an interdental part and effectively removing stains to obtain a tooth excellent in aesthetics. Can be provided.

Continuation of front page (51) Int.Cl. ⁷ Identification code FI theme code (reference) A61K 7/16 A61K 7/16

Claims (5)

[Claims] 1. An interdental cleaning tool made of a material coated with powder particles, which has a stain removing power of 25 or more. 2. The interdental cleaning tool according to claim 1, wherein the powder particles are silica. 3. The powder particles have a stain removing power of 30 or more, a 50th percentile (d ₅₀ ) of particle diameter of 5 μm or less, and a 90th percentile (d ₉₀ ) of particle diameter of 15 μm or less. The interdental cleaning tool according to claim 2, wherein the interdental cleaning tool is a precipitated silica. 4. The interdental cleaning tool according to claim 1, wherein the interdental cleaning tool is dental floss. 5. The coating amount of powder particles is 0.1 per 1 m.
Any of claims 1 to 4 which is not less than mg and not more than 200 mg
Interdental cleaning tool according to item 1