EP3621575A1 - Dentifrice contenant de la cellulose à base de bambou et de silice de précipitation - Google Patents

Dentifrice contenant de la cellulose à base de bambou et de silice de précipitation

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Publication number
EP3621575A1
EP3621575A1 EP18722049.6A EP18722049A EP3621575A1 EP 3621575 A1 EP3621575 A1 EP 3621575A1 EP 18722049 A EP18722049 A EP 18722049A EP 3621575 A1 EP3621575 A1 EP 3621575A1
Authority
EP
European Patent Office
Prior art keywords
oral
dental care
cleaning agent
bamboo
cleaning
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP18722049.6A
Other languages
German (de)
English (en)
Inventor
Kristin Miehlich
Daniela Arians
Nicole Duschek
Jennifer Evening
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Henkel AG and Co KGaA
Original Assignee
Henkel AG and Co KGaA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Henkel AG and Co KGaA filed Critical Henkel AG and Co KGaA
Publication of EP3621575A1 publication Critical patent/EP3621575A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • 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
    • A61K8/0241—Containing particulates characterized by their shape and/or structure
    • A61K8/027—Fibers; Fibrils
    • 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
    • A61K8/25—Silicon; Compounds 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
    • A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
    • A61K8/73—Polysaccharides
    • A61K8/731—Cellulose; Quaternized cellulose derivatives
    • 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
    • A61K8/96—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution
    • A61K8/97—Cosmetics or similar toiletry preparations characterised by the composition containing materials, or derivatives thereof of undetermined constitution from algae, fungi, lichens or plants; from derivatives thereof
    • A61K8/9783—Angiosperms [Magnoliophyta]
    • A61K8/9794—Liliopsida [monocotyledons]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/20—Chemical, physico-chemical or functional or structural properties of the composition as a whole
    • A61K2800/28—Rubbing or scrubbing compositions; Peeling or abrasive compositions; Containing exfoliants
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
    • A61K2800/40—Chemical, physico-chemical or functional or structural properties of particular ingredients
    • A61K2800/41—Particular ingredients further characterized by their size
    • A61K2800/412—Microsized, i.e. having sizes between 0.1 and 100 microns

Definitions

  • the invention relates to oral and dental care and cleaning compositions which contain a combination of bamboo cellulose and precipitated silica as a polishing agent and have excellent cleaning performance with low abrasion and a good mouthfeel.
  • Dentifrices are available in various forms on the market and are primarily used to clean the tooth surface and to prevent tooth and gum disease. They usually contain a combination of polishes, humectants, surfactants, binders, aroma substances and fluoride-containing and antimicrobial agents. In addition to toothpowder, which play a minor role because of their increased abrasiveness, dentifrices are mainly offered in paste, cream and translucent or transparent gel form. Liquid or liquid toothpastes and mouthwashes have also become increasingly important in recent years.
  • Stains on the tooth surface can be caused by consumption of color-intensive drinks and food (for example tea or red wine) or tobacco consumption, as well as by an increased mineralization of plaque, tartar.
  • a reduced abrasion of the enamel in the teeth cleaning is desired.
  • a reduced abrasion by reducing the abrasive constituents or polishing agent reduces the abrasion, it is usually accompanied by a reduced cleaning performance.
  • the cleaning performance could be increased again by adding peroxides or condensed phosphates (pyrophosphates, polyphosphates).
  • the maximum concentration of peroxides according to the Cosmetics Directive is 1000 ppm, so that no visible effects can be achieved.
  • the use of condensed phosphates further increases the pH and may result in some of the users gum detachments by denaturing the proteins therein. In addition, the abrasion is increased again.
  • Another disadvantage of many current whitening toothpastes or creams is an unpleasant floury mouthfeel so that the toothbrushing process is often prematurely terminated so that the fluoride contained in the dentifrice can not fully exert its preventative and remineralizing effect.
  • a mouth and dental care and cleaning agent containing a combination of bamboo cellulosic particles and precipitated silica in selected proportions.
  • the present invention thus relates to an oral and dental care and cleaning agent, which in each case based on the total weight of the composition contains:
  • polishing agents which, in each case based on the total weight of the composition, contains the following polishing agents:
  • Oral and dental care and cleaning agent according to item 1 or 2, comprising:
  • cellulose particles obtained from bamboo have an average particle size (d50, laser diffraction) of 70 to 90 ⁇ , preferably about 80 ⁇ .
  • precipitated silica an average particle size (d50, laser diffraction) of 5 to 20 ⁇ , preferably 7 to 15 ⁇ have.
  • Oral and dental care and cleaning agent according to one of the preceding claims, wherein the precipitated silica have a specific surface according to ISO 5794-1, Angang D, from 15 to 200 m 2 / g, preferably 30 to 90 m 2 / g. 1 1.
  • Oral and dental care and cleaning agent according to one of the preceding claims which further contains at least one ingredient selected from zinc salts, humectants, anionic surfactants, thickeners, fluorides, anti-plaque and / or tartar and alkali metal monophosphate salts.
  • a method for cleaning teeth characterized in that an inventive agent applied to the brush head of a manually operated or electric toothbrush and brushed with the toothbrush teeth.
  • Oral and dental care and cleaning agents in the context of the invention are in particular toothpastes, toothpastes and dental gels.
  • these are present as more or less flowable or plastic means, such as those used to clean the teeth using a toothbrush.
  • the oral and dental care and cleaning compositions according to the invention based on their total weight, 1 to 10 wt .-% of bamboo-won cellulose particles having an abrasive action.
  • the content of the cellulose particles obtained from bamboo is preferably 1 to 7% by weight, more preferably 2 to 6% by weight. It was found that by using bamboo-derived cellulose in combination with precipitated silica excellent cleaning performance and reduced or very low abrasion could be achieved. In comparative experiments with cellulose from other plant sources such as wood or cotton, these effects could not be observed. Due to the synergistic effect of these abrasion components, in embodiments of the invention, the total concentration of abrasives can be chosen to be comparatively low.
  • Source of the cellulose particles used according to the invention is bamboo, in which case the leaves, stems, stems and mixtures thereof can serve as starting material.
  • Cellulose particles according to the invention are in particular cellulose particles with an average mean Fiber length or particle size (c! 50, laser diffraction) of 70 to 90 [im, preferably about 80 [im.
  • the cellulose particles used according to the invention can be obtained, for example, by grinding pulverulent ⁇ -cellulose.
  • the cellulose particles obtained from bamboo are present as powders before incorporation into the oral and dental care and cleaning compositions and have a bulk density according to DIN 53468 of greater than 160 g / l, preferably greater than 190 g / l, for example 160 up to 250 g / l or 180 to 220 g / l.
  • Cellulose particles obtained from bamboo are commercially available, for example, under the name Sensocel® b, or Sensocel® bc.
  • Cellulose fiber particles which are commercially available under the name Sensocel® b90 or Sensocel® dental b90 (CFF GmbH & Co. KG) are very particularly preferably used as the cellulose particles obtained from bamboo.
  • the oral and dental care and cleansing compositions according to the invention furthermore contain, as an essential constituent, a precipitated silica in a proportion of from 1 to 20% by weight.
  • a precipitated silica in a proportion of from 1 to 20% by weight.
  • Precipitated silicas are obtained by precipitation of silica from dilute alkali silicate solutions by addition of strong acids under conditions in which aggregation to the sol and gel can not occur.
  • Preferred precipitated silicas also have rounded corners and edges.
  • the precipitated silicas have a specific surface area according to ISO 5794-1, Angang D, of 15 to 200 m 2 / g, more preferably 30 to 90 m 2 / g.
  • the oral and dental care and cleaning agents contain the precipitated silica preferably in a proportion of 5 to 15 wt .-%, more preferably 8 to 12 wt .-%, based on the total weight.
  • oral and dental care and cleaning agents according to the invention are preferred, the following combinations of proportions of at least one precipitated silica a. and the bamboo-derived cellulose particles b. contain:
  • the total amount of cellulose particles obtained from bamboo is preferred. and the at least one precipitated silica b. 5 to 30% by weight, more preferably 6 to 25% by weight, still more preferably 10 to 20% by weight.
  • no further abrasion components are contained.
  • RDA Radiactive Dentin Abrasion
  • the oral and dental care and cleaning compositions according to the invention contain, in preferred embodiments, the components a. and b. no further polishing or abrasives or only very small amounts thereof, for example. Less than 3 wt .-% or less than 1 wt .-%. If further polishing agents are included, they may be selected from polishing agents which are known for toothpastes as friction bodies, in particular those which do not contain calcium ions, for example further silicic acids, aluminum hydroxide, aluminum oxide, sodium aluminum silicates, such as, for example, As zeolite A, organic polymers such. As polymethacrylate or mixtures of such friction body.
  • the oral and dental care and cleaning agents do not contain any, i. 0 wt .-%, or only very small proportions of peroxides, for example less than 0.01 wt .-% or less than 0.001 wt .-%, each based on the total weight of the composition.
  • the oral and dental care and cleaning agents contain no, i. 0 wt .-%, or only very small proportions of condensed phosphates, for example less than 0, 1 wt .-%, less than 0.05 wt .-% or less than 0.01 wt .-%, each based on the Total weight of the agent.
  • the oral and dental care and cleaning compositions of the invention may contain other conventional ingredients such as zinc salts, humectants, anionic surfactants, thickeners, fluorides, plaque and / or tartar active substances, alkali metal monophosphate salts, and combinations thereof.
  • humectants that prevent dehydration in toothpastes or toothpastes.
  • Preferred humectants are polyhydric alcohols from the group sorbitol, glycerol, 1, 2-propylene glycol and mixtures thereof.
  • Further suitable humectants are polyhydric alcohols having at least 2 OH groups, preferably mannitol, xylitol, polyethylene glycol, polypropylene glycol and mixtures thereof.
  • preferred are those having 2 to 12 OH groups, and especially those having 2, 3, 4, 5, 6 or 10 OH groups.
  • the (n, n + 1) or (n, n + 2) - diols with non-terminal OH groups can also be used.
  • polyhydroxy compounds having 2 OH groups are also the polyethylene glycols and polypropylene glycols.
  • polyhydric alcohols may, for. B. xylitol, propylene glycols, polyethylene glycols, especially those having average molecular weights of 200-800 are used.
  • the oral and dental care and cleaning compositions according to the invention preferably contain 10 to 40% by weight, preferably 12.5 to 30% by weight, more preferably 15 to 25% by weight, more preferably 15% by weight to 20% by weight of the humectants.
  • Particularly preferred according to the invention are combinations of sorbitol and glycerol, furthermore preferably in a weight ratio of about 2: 1 to 4: 1 (sorbitol: glycerol).
  • sorbitol glycerol
  • glycerol apart from glycerol and sorbitol, no further humectants are included.
  • the oral and dental care and cleaning compositions according to the invention may preferably contain at least one anionic surfactant.
  • Suitable anionic surfactants are, for. B. linear Natnumalkylsulfate with 12-18 C atoms in the alkyl group.
  • An example is sodium lauryl sulfate.
  • These substances additionally have an enzyme-inhibiting effect on the bacterial metabolism of the dental plaque.
  • alkali metal salts preferably sodium salts of Alkylpolyglycolethersulfat with 12-16 C atoms in the linear alkyl group and 2-6 glycol ether groups in the molecule, of linear alkane (C 2 -Cie) - sulfonate, of Sulfobernsteinklamonoalkyl (Ci -Ci8 2) - esters, of sulfated fatty acid monoglycerides, sulfated fatty acid alkanolamides, sulfoacetic acid alkyl (C 12-Cie) esters, acylsarcosines, acyl taurides and acyl isothionates each having 8-18 C atoms in the acyl group.
  • alkali metal salts preferably sodium salts of Alkylpolyglycolethersulfat with 12-16 C atoms in the linear alkyl group and 2-6 glycol ether groups in the molecule
  • linear alkane C 2
  • anionic surfactants are soaps, alkylbenzenesulfonates, olefinsulfonates, alkyl ether sulfonates, glycerol ether sulfonates, ⁇ -methyl ester sulfonates, sulfo fatty acids, alkyl sulfates, fatty alcohol ether sulfates, glycerol ether sulfates, hydroxy mixed ether sulfates,
  • Oral and dental care and cleaning agents which are preferred according to the invention are characterized in that they are from 0.25 to 4% by weight, preferably from 0.5 to 3.5% by weight, more preferably from 0.75 to 3% by weight, even more preferred 1 to 2.5 wt .-% and in particular 1, 25 to 2.2 wt .-% anionic (s) surfactant (s) included.
  • the oral and dental care and cleaning compositions of the invention may contain at least one amphoteric surfactant.
  • Amphoteric surfactants are subdivided into ampholytic surfactants and zwitterionic surfactants.
  • Ampholytic surfactants are understood to mean those surface-active compounds which have both acidic and basic hydrophilic groups and thus behave acidic or basic depending on the condition.
  • Suitable ampholytic surfactants contain, for example, apart from a Cs-C2-i-alkyl or acyl group, at least one free amino group (basic hydrophilic group) and at least one
  • ampholytic surfactants are N-alkylglycines, N-alkylaminopropionic acids, N-alkylaminobutyric acids, N-alkyliminodipropionic acids, N-hydroxyethyl-N-alkylamidopropylglycines, N-alkyltaurines, N-alkylsarcosines, 2-alkylaminopropionic acids and alkylaminoacetic acids each having about 8 to 24 C Atoms in the alkyl group.
  • Particularly preferred ampholytic surfactants are N-cocoalkylaminopropionate, cocoacylaminoethylaminopropionate and C12-C44 acylsarcosine.
  • Preferred oral and dental care and cleaning agents according to the invention are characterized in that they contain amphoteric surfactant (s) from the groups of
  • N-alkylpropionic acids N-alkylaminobutyric acids
  • N-alkyl sarcosines N-alkyl sarcosines
  • Alkylaminoacetic acids each having about 8 to 24 C atoms in the alkyl group
  • N-alkyl-N, N-dimethylammonium glycinates for example cocoalkyldimethylammonium glycinate,
  • N-acyl-aminopropyl-N, N-dimethylammonium glycinates for example
  • compositions contain as amphoteric surfactants betaines of the formula (Bet-I)
  • R is a straight-chain or branched, saturated or mono- or polyunsaturated alkyl or alkenyl radical having 8 to 24 carbon atoms.
  • surfactants are referred to the INCI nomenclature as Amidopropylbetaine, wherein the representatives derived from coconut fatty acids, are preferred and are referred to as Cocoamidopropyibetaine.
  • surfactants of the formula (Bet-I) which are a mixture of the following representatives: H 3 C- (CH 2) 7-C (O) -NH- (CH 2 ) 3 N + (CH 3 ) 2 CH 2 COO-
  • an oral and dental care and cleaning agent according to the invention is characterized in that, based on its total weight, it contains 0.05 to 5.0% by weight, preferably 0, 1 to 3.5% by weight. , particularly preferably 0.2 to 2.5 wt .-% and in particular 0.5 to 2.0 wt .-% amphoteric (s) surfactant (s), preferably Cocamidopropylbetain.
  • s amphoteric
  • surfactant s
  • Oral and Zahnux- and -curismittel in particular toothpastes, may also contain other substances that are effective against plaque and / or tartar.
  • antimicrobial substances and preservatives (plaque) or chelating agents (tartar) are suitable for this purpose.
  • tartar chelating agents
  • Oral and dental care and cleaning agents preferred according to the invention are characterized in that they additionally contain antiplaque agents, preferably alkypyridinium salts, in particular cetylpyridinium chloride, methyl, ethyl or propyl p-hydroxybenzoate, sodium sorbate, sodium benzoate, bromochlorophene, triclosan, hexetidines, phenyl -Salicylklareester, biguanides z.
  • antiplaque agents preferably alkypyridinium salts, in particular cetylpyridinium chloride, methyl, ethyl or propyl p-hydroxybenzoate, sodium sorbate, sodium benzoate, bromochlorophene, triclosan, hexetidines, phenyl -Salicylklareester, biguanides z.
  • antiplaque agents preferably alkypyridinium salts, in particular cetylpyridinium chloride, methyl,
  • Anti-calculus substances may be, for example, chelating agents such.
  • pyrophosphate salts such as the water-soluble dialkali or Tetraalkalimetallpyrophosphat salts, z. B. Na- ⁇ O, K4P2O7, Na 2 K 2 P20 /, Na 2 H 2 P207 and K2H2P2O7 or polyphosphate salts, the z. B. may be selected from water-soluble alkali metal tripolyphosphates such as sodium tripolyphosphate and potassium tripolyphosphate.
  • Oral and dental care and cleaning agents which are preferred according to the invention are characterized in that they additionally contain phosphate (s), preferably alkali metal phosphate (s) and in particular sodium tripolyphosphate, preferably in a total amount of 0.1 to 10 wt .-%, preferably from 0.1 to 5 wt .-% and in particular from 0.2 to 1 wt .-%, each based on the total agent.
  • phosphate preferably alkali metal phosphate (s) and in particular sodium tripolyphosphate
  • the dentifrices according to the invention may e.g. be improved by the addition of aromatic oils and sweeteners in their organoleptic properties.
  • aroma oils all natural and synthetic flavors customary for oral and dental care and cleansing agents can be used. Natural flavors can be contained both in the form of natural essential oils isolated from drugs and the individual components isolated therefrom. Suitable flavors are e.g. Peppermint oil, spearmint oil, eucalyptus oil, aniseed oil, fennel oil, caraway oil, menthyl acetate, cinnamaldehyde, anethole. Vanillin. Thymol and mixtures of these components.
  • Suitable sweeteners are e.g. Saccharin sodium, sodium cyclamate, sucrose, lactose, meltose, fructose, maltose and dextrose.
  • zinc salts are included in the composition according to the invention as active substances against halitosis and in particular against gingivitis and periodontitis.
  • Agents preferred according to the invention therefore comprise at least one zinc salt, preferably in amounts of from 0.001 to 5% by weight, based on the total agent, with particularly preferred oral and dental care and cleaning compositions being characterized in that they contain from 0.001 to 5% by weight. , preferably 0.02 to 2.5 wt .-%, particularly preferably 0.03 to 2.0 wt .-%, more preferably 0.04 to 1, 5 wt .-%, even more preferably 0.05 to 1, 0 wt. %, even more preferably 0.06 to 0.5 wt .-% and in particular 0.07 to 0.25 wt .-% of at least one zinc salt.
  • the quantities are based on the total agent, i. the finished mouth and dentifrice and cleanser.
  • inorganic and organic salts of zinc can be used according to the invention.
  • insoluble inorganic zinc salts ie salts which have a solubility below 100 mg / L (20 ° C), preferably below 10 mg / L (20 ° C), in particular no solubility (20 ° C) (Ex .: zinc oxide )
  • inorganic zinc salts that is to say salts which have a solubility in water above 100 mg / L, preferably above 500 mg / L, more preferably above 1 g / L and in particular above 5 g / L, preferred component of agents according to the invention.
  • Preferred soluble inorganic salts include zinc bromide, zinc chloride, zinc iodide. the zinc nitrate and the zinc sulfate.
  • compositions according to the invention contain at least one of the following zinc salts: zinc acetate dihydrate, zinc acetylacetonate, zinc bromide, zinc chloride, zinc gluconate, zinc hydroxycarbonate, zinc iodide, zinc nitrate hexahydrate, zinc nitrate tetrahydrate, zinc oxide, zinc stearate, zinc sulfate heptahydrate, zinc sulfate monohydrate.
  • zinc salts zinc acetate dihydrate, zinc acetylacetonate, zinc bromide, zinc chloride, zinc gluconate, zinc hydroxycarbonate, zinc iodide, zinc nitrate hexahydrate, zinc nitrate tetrahydrate, zinc oxide, zinc stearate, zinc sulfate heptahydrate, zinc sulfate monohydrate.
  • inventively preferred zinc salts of organic acids preferably organic carboxylic acids, ranging from salts which are not soluble in water, ie a solubility below 100 mg / L, preferably below 10 mg / L, in particular have no solubility, to such salts, the in water have a solubility above 100 mg / L, preferably above 500 mg / L, more preferably above 1 g / L and in particular above 5 g / L (all solubilities at 20 ° C water temperature).
  • the first group of zinc salts includes, for example, zinc acetate, zinc laureate, zinc oleate, zinc oxalate, zinc tartrate and zinc stearate;
  • the group of soluble organic zinc salts includes, for example, zinc acetate, zinc acetylacetonate, zinc benzoate, zinc formate, zinc lactate , the zinc gluconate, the zinc valerate and the zinc salt of p-toluenesulfonic acid.
  • Zinc sulfate is a particularly preferred zinc salt.
  • Zinc sulfate forms several hydrates.
  • the heptahydrate forms from saturated aqueous solution in the form of colorless, glazed, columnar, rhombic crystals. Above 39 ° C., conversion to ZnSO 4 6H 2 O takes place, and at 70 ° C. only ZnSO 4 H 2 O is present: the last H 2 O molecule escapes at 240 ° C.
  • the effect of the invention on the zinc sulfates increases with their water of crystallization, cf. the heptahydrate is a particularly preferred compound.
  • oral and dental care and cleaning agents which are preferred according to the invention contain zinc sulfate, preferably zinc-nitrate and hydrotreated water.
  • the oral and dental care and cleaning compositions of the invention may contain commonly used thickening agents such as, for example, cellulose derivatives such as carboxymethylcelluloses, sodium carboxymethylcellulose (cellulose gum), polysaccharides, or xanthan gum.
  • thickening agents such as, for example, cellulose derivatives such as carboxymethylcelluloses, sodium carboxymethylcellulose (cellulose gum), polysaccharides, or xanthan gum.
  • Thickeners which can be used according to the invention also include more finely divided ones Precipitated silicas, so-called thickening silicas having a BET surface area of 150-250 m 2 / g, eg the commercial product Sident® 22S (Evonik).
  • Agents of the invention may preferably be formulated as toothpastes or toothpastes.
  • Another object of the present invention is the use of agents according to the invention for cleaning teeth by means of manually operated or electric toothbrushes.
  • Another object of the present invention is a method for cleaning teeth, characterized in that an inventive agent is applied to the brush head of a manually operated or electric toothbrush and brushed with the toothbrush teeth.
  • Another object of the present invention is a method for cleaning teeth, characterized by the steps a) providing a toothbrush, the brush head can be set in motion: b) application of 0.5 to 5 g of an agent according to the invention on the brush head, c) 30th - To 300- second tooth brushing with the agent according to the invention using the offset in motion brush head.
  • Another object of the present invention is the use of oral and dental care and cleaning agents according to the invention for reducing the discoloration and / or re-staining of teeth and / or facilitating the removal of stains on tooth surfaces.
  • the cleaning performance and the abrasion were evaluated by the following methods.
  • bovine teeth was conditioned, dyed with tea under defined conditions and cleaned under defined conditions with the toothpaste to be tested.
  • the resulting whitening was examined colorimetrically and compared with the whitening obtained with a standard test paste.
  • the mounted tooth blocks were successively immersed in 0.12 N hydrochloric acid (60 sec), saturated Na2CO3 solution (120 sec.) And in 1% phytic acid solution (60 sec.). After each treatment, the samples were rinsed with deionized water and blotted dry with absorbent paper. Teeth specimens were then suspended in the soaker and moved through a 20 C black tea solution for 5 days. The tea solution was prepared by extracting a 1.5 g tea bag with 300 g boiling water (10 min.) And renewed twice daily.
  • the mounted tooth blocks were then placed in a Grabenstetter V-8 brushing machine and brushed in the tooth paste slurry of 20 g paste and 40 g desalted water using a soft Oral B toothbrush with 150 g contact pressure.
  • a plaster standard a slurry of 10 g of calcium pyrophosphate in 50 g of carboxymethylcellulose swell (0.5% CMC, 10% glycerol, 89.5% water) was used. The cleaning effect of this standard is defined as 100% value.
  • the measurements of the lightening were done with the help of a Dr. med. Long color difference meter (type Micro Color (DC 8334)) according to the German industrial standard DIN 5033 performed. A xenon lamp was used which produces normal light D 65, according to the daylight. The color standard used was barium sulfate.
  • the brightness was measured after every 1000 brush strokes.
  • the cleaning effect GRS cleaning ratio soft
  • GRS mean increment Y test paste. 100 [%] mean increment Y plaster standard. The results are listed in the table.
  • abrasion was determined by the RDA test (Radioactive Dentin Abrasion) according to DIN EN ISO 1 1609.
  • the toothpaste had an exceptionally excellent combination of cleaning performance and abrasion.
  • An RDA value of 20 to 40 is generally considered to be a low abrasion value.
  • an extremely low abrasion value of well below 20 could now be achieved.
  • the toothpaste according to the invention surprisingly had a very high cleaning performance.
  • Comparative toothpastes with cellulose particles not derived from bamboo but otherwise of the same composition did not provide a comparably good combination of low abrasion and high cleaning performance in any case.
  • the mouthfeel was evaluated in a standardized application test by an experienced panel of experts.

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  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • General Health & Medical Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • Epidemiology (AREA)
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  • Inorganic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
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  • Mycology (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cosmetics (AREA)

Abstract

La présente invention concerne des agents de soins bucco-dentaires et des agents nettoyants qui contiennent respectivement, rapporté au poids total de l'agent, 1 à 10 % en poids de particules de cellulose extraite du bambou et 1 à 20 % en poids de silice de précipitation. Lesdits agents possèdent une excellente efficacité de nettoyage, en particulier concernant les salissures superficielles à la surface des dents et l'élimination de la plaque dentaire. Ils ne sont que peu abrasifs pour la matière dentaire naturelle (émail) et présentent une sensation en bouche remarquable et non farineuse.
EP18722049.6A 2017-05-10 2018-05-04 Dentifrice contenant de la cellulose à base de bambou et de silice de précipitation Withdrawn EP3621575A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017207930.4A DE102017207930A1 (de) 2017-05-10 2017-05-10 Zahncreme mit bambusbasierter Cellulose
PCT/EP2018/061559 WO2018206447A1 (fr) 2017-05-10 2018-05-04 Dentifrice contenant de la cellulose à base de bambou et de silice de précipitation

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CN1720897A (zh) * 2005-06-06 2006-01-18 美晨集团股份有限公司 一种竹叶牙膏及其制造方法
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DE102013212875A1 (de) * 2013-07-02 2015-01-08 Henkel Ag & Co. Kgaa Remineralisierende Mund- und Zahnpflege- und -reinigungsmittel mit Zahnfleischstimulation
DE102014221450A1 (de) * 2014-10-22 2016-04-28 Henkel Ag & Co. Kgaa Mund- und Zahnpflege- und -reinigungsmittel mit verbesserter Poliermittelkombination

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