WO2016114137A1 - 歯磨用組成物 - Google Patents
歯磨用組成物 Download PDFInfo
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- WO2016114137A1 WO2016114137A1 PCT/JP2016/000154 JP2016000154W WO2016114137A1 WO 2016114137 A1 WO2016114137 A1 WO 2016114137A1 JP 2016000154 W JP2016000154 W JP 2016000154W WO 2016114137 A1 WO2016114137 A1 WO 2016114137A1
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- Prior art keywords
- wax
- remineralization
- dentifrice
- calcium
- phosphate
- Prior art date
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/02—Cosmetics or similar toiletry preparations characterised by special physical form
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/24—Phosphorous; Compounds thereof
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/922—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of vegetable origin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/925—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of animal origin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/92—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof
- A61K8/927—Oils, fats or waxes; Derivatives thereof, e.g. hydrogenation products thereof of insects, e.g. shellac
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
Definitions
- the present invention relates to a dentifrice composition having an effect of remineralizing teeth.
- Caries start from the formation of dental plaque by caries bacteria such as Streptococcus mutans adhering to the tooth surface, and organic acids produced by the metabolism of food by dental caries in dental plaque
- the enamel is decalcified and an initial caries state is obtained.
- Saliva has the function of remineralizing the demineralized part by the action of calcium and phosphorus in the saliva and returning the teeth to the original state. If the decalcified teeth can be sufficiently regenerated by remineralization, the occurrence of caries can be suppressed.
- a dentifrice containing one kind of fluoride and calcium phosphate and hydroxyapatite having a crystal structure similar to the inorganic components of teeth is manufactured and sold.
- Dentifrice composition for oral cavity (Patent Document 2) that can retain hydroxyapatite fine powder on the tooth surface for a long time by blending hydroxyapatite fine powder with water-soluble cellulose solution, Oral bacteria (Patent Document 3) that can significantly promote remineralization by using a sugar alcohol such as xylitol and dicalcium phosphate in combination, and oral bacteria containing low crystalline hydroxyapatite Oral composition (Patent Document 4) that can prevent oral diseases and discomfort by adsorbing and sterilizing -Oral composition (patent document 5) capable of preventing whitening of teeth, preventing tooth decay by remineralization and preventing periodontal disease by blending calcium compounds such as hydroxyapatite with Yal
- Patent Document 10 a method for improving the astringency of a toothpaste composition (Patent Document 10, Patent Document 11) that gives gloss to teeth and an oral composition containing an astringent compound by containing wax (Patent Document) 12)
- Patent Document 13 A method for suppressing the expression of astringency and metallic taste by blending wax into a dentifrice composition having astringency and metallic taste has been proposed (Patent Document 13).
- Many waxes exist on the surface of animals and plants and serve as protective films. They are refined and used for glazing, cosmetics, pharmaceuticals, etc., but have no remineralization action on teeth. .
- An object of the present invention is to provide a dentifrice composition having a high remineralization effect of demineralized tooth enamel.
- the present inventors have conventionally improved the effect of giving luster and shine and the convergence with calcium phosphates such as hydroxyapatite, tricalcium phosphate, and calcium monohydrogen phosphate. Only the effect is known, and when a wax having no remineralization action alone is added to the dentifrice composition, it is found that the remineralization effect of the tooth is remarkably improved, and the present invention is completed. It came.
- calcium phosphates such as hydroxyapatite, tricalcium phosphate, and calcium monohydrogen phosphate.
- a dentifrice composition comprising wax and calcium phosphate, wherein the calcium phosphate content is 0.001 to 33% by mass.
- wax is shellac wax, cucumber wax, carnauba wax, sugar cane wax, honey beeswax, salaci montan wax, rice bran wax, hydrogenated rice bran wax, whale wax, deresinized candelilla wax, candelilla wax, montan wax, paraffin wax, microcrystalline
- the dentifrice composition of the present invention can remarkably enhance the remineralization effect of calcium phosphate. Therefore, the dentifrice composition of the present invention is very excellent in remineralization of decalcified tooth enamel, and an excellent remineralization effect can be obtained even if the content of calcium phosphate is reduced.
- FIG. 3 is a diagram in which the photographs shown in FIG. 1 and FIG. 2 are drawn using dark ink, and descriptions of the state of each part are added.
- the dentifrice composition of the present invention is not particularly limited as long as it contains wax and calcium phosphate, and the content of the calcium phosphate is 0.001 to 33% by mass. Dentifrice, powder dentifrice, liquid dentifrice and the like can be exemplified.
- the calcium phosphate in the present invention is not particularly limited as long as it is a calcium salt of phosphoric acid, and examples thereof include hydroxyapatite, tricalcium phosphate, calcium monohydrogen phosphate, and the like. It may be used alone or in combination of two or more, and hydrates, phosphorus and calcium partially substituted with other elements such as magnesium, zinc, titanium, sodium, potassium But you can.
- the calcium phosphate in the present invention is preferably at least one selected from the group consisting of hydroxyapatite, tricalcium phosphate and calcium monohydrogen phosphate from the viewpoint of promoting remineralization.
- Hydroxyapatite which is one of the calcium phosphates in the present invention, may be obtained from fish bones of edible fish such as salmon, pork bones, cow bones, etc. as natural hard tissues, in addition to those synthesized by ordinary methods. .
- hydroxyapatite is stoichiometrically represented by a composition composed of Ca 10 (PO 4 ) 6 (OH) 2 , but is non-stoichiometric with a Ca / P molar ratio of not 1.67. Even in this case, it exhibits the properties of hydroxyapatite and can have an apatite structure.
- synthetic hydroxyapatite having a Ca / P molar ratio of about 1.4 to 1.8 is also included in the hydroxyapatite in the present invention.
- the hydroxyapatite used in the present invention may be crystalline, low crystalline, or amorphous, but it is low crystalline or amorphous hydroxyapatite from the viewpoint of caries prevention effect.
- low crystalline hydroxyapatite and amorphous hydroxyapatite are referred to as “amorphous hydroxyapatite”.
- “Low crystallinity” means that the X-ray diffraction peak is broader than that of highly crystalline powder, and “amorphous” means that the X-ray diffraction pattern has a wide halo. The diffraction pattern showing the characteristics of the crystal cannot be obtained.
- Such amorphous hydroxyapatite can be obtained, for example, by freeze-drying apatite synthesized by a wet synthesis method, drying at a temperature of 100 ° C. or lower, or baking at about 300 ° C. or lower.
- the content of hydroxyapatite in the dentifrice composition of the present invention is 0.001 to 33% by mass of the entire dentifrice composition, and from the viewpoint of the remineralization effect and feeling of use, the hydroxyapatite content is 0.
- the content is preferably 001 to 30% by mass, more preferably 0.01 to 20% by mass, and still more preferably 0.1 to 20% by mass.
- Tricalcium phosphate which is one of the calcium phosphates in the present invention, is also called tricalcium phosphate, and is a composition represented by the chemical formula Ca 3 (PO 4 ) 2 , including pharmaceuticals and cosmetics, foods, sundries, It is widely used in the petrochemical industry.
- Examples of the tricalcium phosphate used in the present invention include, but are not limited to, standards-compliant products such as pharmaceutical additive standards, quasi-drug raw material standards, and cosmetic ingredient-specific combination component standards.
- Calcium monohydrogen phosphate which is one of the calcium phosphates in the present invention, is also called dicalcium phosphate, and is a composition represented by the chemical formula CaHPO 4 and its dihydrate CaHPO 4 .2H 2 O. Widely used in foods, cosmetics, industrial materials, etc.
- Examples of the calcium monohydrogen phosphate used in the present invention include, but are not limited to, food additives, Japanese pharmacopoeia, quasi-drug raw material standards, and other standards-compliant products.
- the content of tricalcium phosphate and calcium monohydrogen phosphate in the present invention is 0.001 to 33% by mass of the entire dentifrice composition, and from the viewpoint of remineralization effect and feeling of use, the dentifrice composition
- the total content is preferably 0.001 to 30% by mass, more preferably 0.01 to 20% by mass, and further preferably 0.1 to 20% by mass.
- Wax is generally an ester composed of a higher fatty acid and a monohydric or dihydric higher alcohol. It is solid or liquid and resembles oils and fats, but is stable to oxidation and hydrolysis. Conventionally, waxes that do not fall within the above definition, such as stone wax, which is another name for paraffin, which is a hydrocarbon, and molasses consisting almost of fat are also included in the wax. Waxes are also classified into liquid waxes and solid waxes, which are further divided into plant waxes and animal waxes. In this case, plant waxes include carnauba wax, candelilla wax, rice bran wax, molefish, sucrose wax, and animal waxes include beeswax, whale wax, and insect white wax.
- the wax in the present invention is a wax in a conventional broad sense.
- the wax in the present invention is not particularly limited.
- Montan wax, paraffin wax, microcrystalline wax, molasses, oil seed wax, lanolin, beeswax, cinna wax, cane wax, sucrose wax, insect white wax, etc., among them carnauba wax, candelilla wax, rice bran wax, A beeswax and a mole can be preferably exemplified.
- These waxes may be used alone or in combination of two or more.
- Carnauba wax is a natural wax collected from a kind of palm.
- the carnauba wax used in the present invention can be used from light yellow to light brown.
- the characteristic carnauba wax No. 1: manufactured by Hiroyuki Kato, Celerica Carnauba wax: manufactured by Celalica NODA, polishing wax -105: Freund Sangyo Co., Ltd. can be exemplified.
- candelilla wax is a natural wax obtained from the stems of candelilla grass.
- the candelilla wax used in the present invention can be used from pale yellow to light brown, and specifically, refined candelilla wax MK-4: manufactured by Yokoseki Oil & Fat Co.
- Celerica candelilla wax Examples include Celerica NODA, Miki Chemical Industry Co., Ltd., Sankei Industry Co., Ltd., and refined candelilla wax special product: Celica Noda Co., Ltd.
- waxes used in the present invention include, but are not limited to, standards-compliant products such as Japanese Pharmacopoeia Standard, Food Additive Standard, Cosmetic Raw Material Standard, Quasi-drug Raw Material Standard, etc. .
- the blending amount of the wax in the present invention is not particularly limited, but is preferably 0.0001 to 30% by mass of the entire dentifrice composition from the viewpoint of the remineralization promoting effect and the feeling of use, and preferably 0.001 to More preferably, it is 0.01% by mass, more preferably 0.01-10% by mass.
- the dentifrice composition contains wax in addition to calcium phosphate, the remineralization effect can be remarkably improved as compared with the case of calcium phosphate alone. Therefore, the dentifrice composition of the present invention is very excellent in remineralization of decalcified tooth enamel.
- the remineralization effect can be obtained in the same manner as or higher than when the calcium phosphate content is high. Therefore, the content of calcium phosphate in the dentifrice composition can be reduced as necessary.
- the dentifrice composition of the present invention includes additives such as abrasives, thickeners, binders, etc. that are usually used in dentifrice compositions, wetting agents, foaming agents, fragrances, sweeteners, Preservatives and various active ingredients can be contained. Specific examples of these components are shown below. In addition to the components shown below, appropriate components according to the purpose, the type of the composition, and the like can be further blended.
- silica such as calcium carbonate, calcium pyrophosphate, abrasive precipitated silica, abrasive gel silica, calcium silicate, aluminum silicate, aluminum oxide, aluminum hydroxide, alumina, zeolite, titanium oxide, zirconium silicate, insoluble
- silica such as calcium carbonate, calcium pyrophosphate, abrasive precipitated silica, abrasive gel silica, calcium silicate, aluminum silicate, aluminum oxide, aluminum hydroxide, alumina, zeolite, titanium oxide, zirconium silicate, insoluble
- sodium metaphosphate tribasic magnesium phosphate, magnesium carbonate, calcium sulfate, magnesium sulfate, polymethyl methacrylate, bentonite, and synthetic resin.
- thickeners examples include hydroxyethylcellulose, sodium carboxymethylcellulose, carrageenan, carboxyvinyl polymer, xanthan gum, gelatin, pullulan, sodium alginate, sodium polyacrylate, polyvinyl alcohol, locust bean gum, guar gum, hydroxypropyl methylcellulose, etc. Can do.
- Binders include methylcellulose, propylene glycol alginate, pullulan, tragacanth gum, xanthan gum, pectin, fercelan, chitosan, polyethylene oxide, polyvinylpyrrolidone, polyacrylic acid, polymethacrylic acid, peptone, casein, collagen, albumin, gum arabic, Examples include Karaya gum, Eudragit, ethyl cellulose, cellulose acetate, sodium polyacrylate, polyvinyl alcohol, polyvinyl acetal / dimethylaminoacetate, cellulose acetate / dibutylhydroxypropyl ether, and the like.
- polyoxyethylene hydrogenated castor oil sorbitan monostearate, glycerin fatty acid ester, propylene glycol fatty acid ester, alkyl glyceryl ether, polyoxyethylene sorbitol fatty acid ester, polysorbate, polyoxyethylene, lauromacrogol, sodium alkyl sulfate
- examples include alkyl phosphate esters, sodium alkylbenzene sulfonates, sodium N-acyl sarcosine, N-acyl glutamates, sucrose fatty acid esters, alkyl glycosides, alkyl dimethyl amine oxides, alkyl betaines and the like.
- Oils and fats include liquid alcohols, higher alcohols such as cetyl alcohol and stearyl alcohol, fatty acid esters such as isopropyl myristate, lanolin, fatty acids, octyldodecyl myristate, diisopropyl adipate, hexadecyl isostearate, decyl oleate, etc.
- fatty acid esters such as isopropyl myristate, lanolin, fatty acids, octyldodecyl myristate, diisopropyl adipate, hexadecyl isostearate, decyl oleate, etc.
- Examples include ester compounds, squalane, squalene, medium chain fatty acid triglycerides, silicon and the like.
- Alcohols include lower alcohols such as ethanol, propyl alcohol, isopropyl alcohol, butanol, isobutanol, ethylene glycol, diethylene glycol, propylene glycol, dipropylene glycol, 1,3-butylene glycol, glycerin, 1,5-pentadiol, sorbit Examples thereof include polyhydric alcohols such as polyethylene glycol.
- Surfactants include nonionic surfactants such as sorbitan fatty acid ester, glycerin fatty acid ester, decaglycerin fatty acid ester, polyglycerin fatty acid ester, decaglyceryl laurate, propylene glycol / pentaerythritol fatty acid ester, polyoxyethylene sorbitan fatty acid Ester, polyoxyethylene glycerin fatty acid ester, polyoxyethylene sorbit fatty acid ester, polyethylene glycol fatty acid ester, sucrose fatty acid ester, polyoxyethylene alkyl ether, polyoxyethylene polyoxypropylene glycol, polyoxypropylene alkyl ether, polyoxyethylene poly Oxypropylene alkyl ether, polyoxyethylene alkyl phenyl ether, poly Examples include xylethylene castor oil / hardened castor oil, polyoxyethylene lanolin, lanolin alcohol, beeswax derivative, polyoxyethylene alkylamine / fatty
- anionic surfactants such as sodium lauryl sulfate, sodium myristyl sulfate, alkyl sulfate, polyoxyethylene alkyl sulfate, N-acyl amino acid and its salt, N-acylmethyl taurine and its salt, polyoxyethylene alkyl ether
- anionic surfactants such as sodium lauryl sulfate, sodium myristyl sulfate, alkyl sulfate, polyoxyethylene alkyl sulfate, N-acyl amino acid and its salt, N-acylmethyl taurine and its salt, polyoxyethylene alkyl ether
- examples thereof include acetates, alkyl sulfocarboxylates, ⁇ -olefin sulfonates, alkyl phosphates, polyoxyethylene alkyl ether phosphates, and the like.
- ammonium and alkylbenzylammonium salts examples include amphoteric surfactants include betaine a
- pH adjusters examples include citric acid and its salts, phosphoric acid and its salts, malic acid and its salts, gluconic acid and its salts, maleic acid and its salts, aspartic acid and its salts, gluconic acid and its salts, succinic acid And salts thereof, glucuronic acid and salts thereof, fumaric acid and salts thereof, glutamic acid and salts thereof, adipic acid and salts thereof, inorganic acids such as hydrochloric acid, alkali hydroxides such as hydrofluoric acid, sodium hydroxide, and potassium hydroxide Examples include metals, amines such as triethanolamine, diethanolamine, and diisopropanolamine.
- stabilizers include vitamin C, vitamin E and derivatives thereof, sodium sulfite, sodium pyrosulfite, sodium hydrogen sulfite, butylhydroxytoluene, dibutylhydroxytoluene, butylhydroxyanisole, edetic acid or salts thereof. it can.
- wetting agent examples include polyhydric alcohols such as glycerin, propylene glycol, polyethylene glycol, sorbitol, xylitol, ethylene glycol, 1,3-butylene glycol, and isopropylene glycol.
- polyhydric alcohols such as glycerin, propylene glycol, polyethylene glycol, sorbitol, xylitol, ethylene glycol, 1,3-butylene glycol, and isopropylene glycol.
- foaming agent examples include sodium lauryl sulfate, sodium N-lauroyl sarcosine, a nonionic surfactant, and the like.
- Perfumes include essential oils such as menthol, peppermint, spearmint, eucalyptus oil, orange oil, lemon oil, winder green oil, clove oil, peppermint oil, thyme oil, carvone, linalool, eugenol, anethole, herbal mint, etc. Can be illustrated.
- sweeteners examples include saccharin sodium, aspartame, stevioside, neohesperidyl dihydrochalcone, glycyrrhizin, aspartylphenylalanine methyl ester, acesulfame potassium, perilartine, p-methoxycinnamic aldehyde, xylitol and the like.
- preservative examples include paraoxybenzoic acid ester, alkyldiaminoethylglycine hydrochloride, methylparaben, ethylparaben, sodium benzoate and the like.
- Other medicinal ingredients include allantoin, tocopherol acetate, isopropylphenol, triclosan, chlorhexidine, chlorophyll, flavonoids, tranexamic acid, hinokitiol, cetylpyridinium chloride, sodium fluoride, stannous fluoride, sodium monofluorophosphate, dextranase
- examples include mutanase, protease, aminocaproic acid, glycyrrhizic acid, glycyrrhetinic acid, azulene, allantoin, lysozyme chloride, psyllium extract, polyphosphoric acid, sodium chloride and the like.
- the dentifrice composition of this invention can be manufactured by the normal method which manufactures dentifrice compositions, such as a toothpaste, a powder dentifrice, and a liquid dentifrice.
- dentifrice composition of the present invention calcium phosphate such as wax and hydroxyapatite, tricalcium phosphate, calcium monohydrogen phosphate, and other components may be added at any stage of the production process.
- Toothpastes (Examples 1 to 123) and liquid dentifrices (Examples 124 to 135) containing various wax compositions and hydroxyapatite, tricalcium phosphate, or calcium monohydrogen phosphate were prepared. A calcification test was performed.
- the wax composition is Carnauba wax (Polishing wax-105: Freund Sangyo Co., Ltd.), Candelilla wax (refined candelilla wax special name: Celica Noda), Rice bran (NC-1720: Celica Noda), beeswax (deodorant) Purified beeswax High acid: Celica Noda Co., Ltd., Mokuro (Mokuro-100: Celica Noda Co., Ltd.) were used.
- [Hydroxyapatite] A 30% by mass phosphoric acid aqueous solution was dropped into the calcium hydroxide suspension under stirring until pH 10 was reached, and the resulting gel-like substance was aged at room temperature for 1 day.
- hydroxyapatite powder had a maximum particle size of about 40 ⁇ m, a minimum particle size of about 0.05 ⁇ m, and an average particle size of about 5 ⁇ m.
- This hydroxyapatite powder was used.
- Tricalcium phosphate As the tricalcium phosphate, tricalcium phosphate (food additive: Taihei Chemical Industrial Co., Ltd.) was used.
- Calcium monohydrogen phosphate (dicalcium phosphate)]
- calcium monohydrogen phosphate calcium hydrogen phosphate (food additive: Yoneyama Chemical Co., Ltd.) was used.
- Toothpaste As comparative examples, toothpastes and liquid dentifrices containing various wax compositions, hydroxyapatite, tricalcium phosphate, and calcium monohydrogen phosphate were prepared and subjected to a remineralization test. 1. Toothpaste
- a half of the crown crown side of about 5 ⁇ 3 mm window was further masked with NailEnamel (manufactured by Shiseido Co., Ltd.) and used as a comparison target site (control). Further, a toothpaste and a liquid dentifrice were mixed with purified water to give a suspension solution, which was used as a test solution (test substance).
- the artificial initial caries test specimen prepared above is immersed in each test solution for 12 days, and then the specimen is cut into a thickness of about 500 ⁇ m with a microcutter so as to be parallel to the tooth axis. After that, the slices were polished using # 1000, # 2400, and # 4000 polishing papers to form parallel thin slices of about 100 ⁇ m thickness under water injection.
- CMR contact microradiogram
- Control surface in the figure is a part for comparing the degree of remineralization effect of the dentifrice compositions of Examples and Comparative Examples, and maintained the state of artificial initial caries. Is. Half of the artificial initial caries (about 5 ⁇ 3 mm window) area.
- the “treated surface” in the figure is a portion on which the test solutions (test substances) of Examples and Comparative Examples are applied.
- Tables 42 to 45 show the results of confirming the remineralization effect of the dentifrice composition by the computer image analysis method.
- Example 9 (remineralization rate: 31.9%) and Comparative Example 13 and Comparative Example 52 (total remineralization rate: 13.1%), Example 26 (remineralization rate: 31.4%), Comparative Example 23 and Comparative Example 50 (total remineralization rate: 11.8%), Example 37 (remineralization rate: 16.4%) and Comparative Example 37 and Comparative Example 49 (total remineralization rate: 9.6%), Example 49 (remineralization rate: 15.1%), Comparative Example 34 and Comparative Example 46 (total remineralization rate: 3.6%), Example 58 (remineralization rate: 15.1%) and Comparative Example 16 and Comparative Example 60 (total remineralization rate: 7.3%) Example 76 (remineralization rate: 17.5%) and Comparative Example 19 and Comparative Example 58 (total remineralization rate: 5.3%), Example 82 (remineralization rate: 26.1%) and Comparative Example 4 and Comparative Example 56 (total remineralization rate: 2.3%),
- the dentifrice composition of the present invention is very excellent in remineralization of teeth, and is used for various dentifrices such as toothpastes, powder dentifrices, liquid dentifrices, and other dental remineralization applications.
- the industrial utility is high.
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Abstract
Description
(1)ロウとリン酸カルシウムを含有し、前記リン酸カルシウムの含有量が0.001~33質量%であることを特徴とする歯磨用組成物。
(2)ロウの含有量が、0.0001~30質量%であることを特徴とする上記(1)記載の歯磨用組成物。
(3)リン酸カルシウムが、ハイドロキシアパタイト、リン酸三カルシウム及びリン酸一水素カルシウムからなる群より選ばれる少なくとも一種であることを特徴とする上記(1)又は(2)記載の歯磨用組成物。
(4)ロウが、セラックロウ、オウリキュウロウ、カルナウバロウ、サトウキビロウ、サラシミツロウ、サラシモンタンロウ、コメヌカロウ、水素添加コメヌカロウ、鯨ロウ、脱樹脂キャンデリラロウ、キャンデリラロウ、モンタンロウ、パラフィンワックス、マイクロクリスタリンワックス、モクロウ、油糧種子ロウ、ラノリン、ミツロウ、シナロウ及びケインワックスからなる群より選ばれる少なくとも一種であることを特徴とする上記(1)~(3)のいずれかに記載の歯磨用組成物。
(5)練歯磨剤、粉歯磨剤又は液体歯磨剤であることを特徴とする上記(1)~(4)のいずれかに記載の歯磨用組成物。
ロウ組成物は、カルナウバロウ(ポリシングワックス-105:フロイント産業株式社)、キャンデリラロウ(精製キャンデリラワックス特号:株式会社セリカ野田)、コメヌカロウ(NC-1720:株式会社セリカ野田)、ミツロウ(脱臭精製蜜蝋 高酸:株式会社セリカ野田)、モクロウ(モクロウ-100:株式会社セリカ野田)を使用した。
[ハイドロキシアパタイト]
攪拌下の水酸化カルシウム懸濁液中に、30質量%濃度のリン酸水溶液を、pH10になるまで滴下し、生成したゲル状物質を室温で1日間放置して熟成した。その後、ゲル状物質をガラスフィルターで濾過し、残った物質を100℃の空気中で乾燥を行うことにより、ハイドロキシアパタイト粉末を得た。得られたハイドロキシアパタイト粉末は、最大粒径が約40μm、最小粒径が約0.05μm、平均粒径が約5μmであった。このハイドロキシアパタイト粉末を使用した。
[リン酸三カルシウム]
リン酸三カルシウムは、リン酸三カルシウム(食品添加物:太平化学産業株式会社)を使用した。
[リン酸一水素カルシウム(第二リン酸カルシウム)]
リン酸一水素カルシウムは、リン酸水素カルシウム(食品添加物:米山化学工業株式会社)を使用した。
1.練歯磨剤
再石灰化効果を確認するために、予め作製した人工初期う蝕試験試料を用いた。人工初期う蝕試験試料の作製は、牛前歯、歯冠部唇面エナメル質を用いた。エナメル質表面を#1000、#2400、#4000の研磨紙で研磨した。研磨したエナメル質表面の試験対象部位をNail Enamel(資生堂社製)で約5×3mmのウインドウを作製し、0.1M乳酸緩衝液(pH4.8、3.0mmM CaCl2、1.8mmM KH2PO4、1.0% CMC)に37℃、4日間浸漬させて、人工初期う蝕を作製した。なお、試験のコントロールには、約5×3mmのウインドウのうち、歯冠頭頂部側の半分をさらにNailEnamel(資生堂社製)でマスキングし、比較対象部位(コントロール)とした。また、練歯磨剤、液体歯磨剤を精製水と混合し懸濁溶液としたものを試験溶液(被検物質)とした。
コンピュータでの画像解析は、Angmerらの式(B.Angmer, D.Carlstrom and J.E..Glas : Studies on Ultrastructure of Dental Enemel IV : The Mineralization of normal Human Enamel, J. Ultrastructure.Res.8, 12-23, 1963)を基に再石灰化したミネラル量を算出し、Damatoらの方法(F.A. Damato, R.Stang and K.W.Stephen : Effect of Fluoride Concentration on Reminerelization of Carious Enamel : an in vitro pH-CyclingStudy, Caries Res, 24, 174-180,1990)に従って、各切片のコントロール面と処理面のミネラル喪失量△Z(%volume mineral・μm)を算出した。なお、再石灰化率は、以下の式により算出した。
1.練歯磨剤
具体的に、例えば、
実施例9(再石灰化率:31.9%)と比較例13及び比較例52(合計再石灰化率:13.1%)、
実施例26(再石灰化率:31.4%)と比較例23及び比較例50(合計再石灰化率:11.8%)、
実施例37(再石灰化率:16.4%)と比較例37及び比較例49(合計再石灰化率:9.6%)、
実施例49(再石灰化率:15.1%)と比較例34及び比較例46(合計再石灰化率:3.6%)、
実施例58(再石灰化率:15.1%)と比較例16及び比較例60(合計再石灰化率:7.3%)、
実施例76(再石灰化率:17.5%)と比較例19及び比較例58(合計再石灰化率:5.3%)、
実施例82(再石灰化率:26.1%)と比較例4及び比較例56(合計再石灰化率:2.3%)、
実施例93(再石灰化率:8.0%)と比較例45及び比較例69(合計再石灰化率:3.8%)、
実施例105(再石灰化率:11.7%)と比較例30及び比較例67(合計再石灰化率:3.8%)、
実施例108(再石灰化率:12.5%)と比較例7及び比較例66(合計再石灰化率:2.7%)、
実施例128(再石灰化率:33.1%)と比較例80及び比較例94(合計再石灰化率:6.1%)、
実施例131(再石灰化率:18.5%)と比較例83及び比較例97(合計再石灰化率:3.5%)、
実施例134(再石灰化率:13.5%)と比較例84及び比較例100(合計再石灰化率:2.2%)、
等の比較からその相乗効果は明らかである。
Claims (5)
- ロウとリン酸カルシウムを含有し、前記リン酸カルシウムの含有量が0.001~33質量%であることを特徴とする歯磨用組成物。
- ロウの含有量が、0.0001~30質量%であることを特徴とする請求項1記載の歯磨用組成物。
- リン酸カルシウムが、ハイドロキシアパタイト、リン酸三カルシウム及びリン酸一水素カルシウムからなる群より選ばれる少なくとも一種であることを特徴とする請求項1又は2記載の歯磨用組成物。
- ロウが、セラックロウ、オウリキュウロウ、カルナウバロウ、サトウキビロウ、サラシミツロウ、サラシモンタンロウ、コメヌカロウ、水素添加コメヌカロウ、鯨ロウ、脱樹脂キャンデリラロウ、キャンデリラロウ、モンタンロウ、パラフィンワックス、マイクロクリスタリンワックス、モクロウ、油糧種子ロウ、ラノリン、ミツロウ、シナロウ及びケインワックスからなる群より選ばれる少なくとも一種であることを特徴とする請求項1~3のいずれかに記載の歯磨用組成物。
- 練歯磨剤、粉歯磨剤又は液体歯磨剤であることを特徴とする請求項1~4のいずれかに記載の歯磨用組成物。
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CA2960007A CA2960007C (en) | 2015-01-16 | 2016-01-14 | Toothpaste composition comprising a wax and a calcium phosphate |
RU2017107232A RU2686753C2 (ru) | 2015-01-16 | 2016-01-14 | Состав зубной пасты |
EP16737208.5A EP3246014A4 (en) | 2015-01-16 | 2016-01-14 | Toothpaste composition |
US15/510,648 US10039698B2 (en) | 2015-01-16 | 2016-01-14 | Toothpaste composition |
JP2016569288A JP6755453B2 (ja) | 2015-01-16 | 2016-01-14 | 歯磨用組成物 |
KR1020177006627A KR101904165B1 (ko) | 2015-01-16 | 2016-01-14 | 치약용 조성물 |
CN201680002489.3A CN107072935A (zh) | 2015-01-16 | 2016-01-14 | 牙膏用组合物 |
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JP2021519811A (ja) * | 2018-05-09 | 2021-08-12 | ハイセンスバイオ | 象牙質知覚過敏症緩和のための歯磨き剤組成物 |
US11612555B2 (en) | 2018-05-09 | 2023-03-28 | Hysensbio | Oral care composition for alleviating dentine hyperesthesia |
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CN108618980A (zh) * | 2018-06-08 | 2018-10-09 | 叶绿芝生物科技(中山)有限公司 | 一种多功能液体牙膏 |
EP4340949A1 (en) | 2021-05-20 | 2024-03-27 | Smile Makers, LLC | Oral hygiene compositions and methods of use |
WO2023141140A1 (en) * | 2022-01-21 | 2023-07-27 | Dentia, Inc | Oral compositions for anticavity and remineralization use |
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JP6755453B2 (ja) | 2020-09-16 |
CA2960007A1 (en) | 2016-07-21 |
US20170189287A1 (en) | 2017-07-06 |
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US10039698B2 (en) | 2018-08-07 |
KR20170045246A (ko) | 2017-04-26 |
RU2017107232A3 (ja) | 2019-02-18 |
EP3246014A4 (en) | 2018-06-13 |
KR101904165B1 (ko) | 2018-10-05 |
RU2686753C2 (ru) | 2019-04-30 |
EP3246014A1 (en) | 2017-11-22 |
CA2960007C (en) | 2019-01-08 |
RU2017107232A (ru) | 2019-02-18 |
CN107072935A (zh) | 2017-08-18 |
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