WO2006107334A1 - Bande soluble pour blanchir les dents - Google Patents

Bande soluble pour blanchir les dents Download PDF

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Publication number
WO2006107334A1
WO2006107334A1 PCT/US2005/035518 US2005035518W WO2006107334A1 WO 2006107334 A1 WO2006107334 A1 WO 2006107334A1 US 2005035518 W US2005035518 W US 2005035518W WO 2006107334 A1 WO2006107334 A1 WO 2006107334A1
Authority
WO
WIPO (PCT)
Prior art keywords
whitening
strip
poly
vinylpyrrolidone
agent
Prior art date
Application number
PCT/US2005/035518
Other languages
English (en)
Inventor
Jose Velada
Original Assignee
Smithkline Beecham Corporation
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
Priority claimed from PCT/US2005/010941 external-priority patent/WO2005097053A1/fr
Application filed by Smithkline Beecham Corporation filed Critical Smithkline Beecham Corporation
Priority to AU2005330297A priority Critical patent/AU2005330297A1/en
Priority to JP2008504010A priority patent/JP2009521396A/ja
Priority to US11/910,298 priority patent/US20090010970A1/en
Priority to EP05802954A priority patent/EP1871337A1/fr
Publication of WO2006107334A1 publication Critical patent/WO2006107334A1/fr

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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
    • A61K8/0208—Tissues; Wipes; Patches
    • 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
    • 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
    • A61K8/81—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • A61K8/8141—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • A61K8/8152—Homopolymers or copolymers of esters, e.g. (meth)acrylic acid esters; Compositions of derivatives of such polymers
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/70—Web, sheet or filament bases ; Films; Fibres of the matrix type containing drug
    • A61K9/7007—Drug-containing films, membranes or sheets

Definitions

  • the present invention relates to a dissolvable whitening strip for whitening teeth. More particularly, the present invention relates to a dissolvable whitening strip having a whitening agent and a polymer system for a controlled, yet complete, dissolution of the whitening strip by interaction of the whitening strip with saliva in the oral cavity.
  • Such additional benefits preferably include increased opacity of the teeth, accelerated whitening of the teeth without the need for pre-mixing of reagents and activators, prevention of tooth sensitivity, and more precise control of diffusion rates of the one or more active ingredients and increasing the contact time with the teeth.
  • a whitening strip having a controlled-dissolution, in which the strip dissolves completely while on the teeth, and leaves virtually no undesired residue, is desired.
  • the present invention provides such a whitening strip.
  • the present invention provides such a dissolvable, water-soluble strip for whitening teeth.
  • the strip has a whitening agent and a water- soluble or water dispersible polymer system.
  • the polymer system includes a poly(vinylpyrrolidone) or any derivative thereof, and at least one other polymer.
  • the dissolution of said whitening strip is preferably controlled solely by interaction of the strip with an oral environment containing saliva.
  • the present invention also provides a method of whitening teeth, i.e., a method of improving the whiteness of the teeth.
  • the method has the step of applying onto the teeth a whitening strip according to the present invention for a period of time sufficient to produce in the course of treatment a detectable, as known in the art, improvement in the whiteness of the teeth.
  • whitening strip means the formed dry film.
  • the strip is a single layer, although in alternative embodiments, as noted below, the strip can be multi-layered.
  • the strip has a polymer system and a whitening agent or agents for improving the whitening of teeth.
  • the whitening strip may have additional ingredients, some of which may be active, to provide additional benefits that include breath freshening, whitening maintenance, tooth mineralization, tooth sensitivity prevention or treatment, and gum health maintenance or treatment.
  • the strip of the present invention is dissolvable in saliva that is formed in the oral cavity or mouth.
  • a substantive coating that is not considered undesired residue, can be left to extend the residence time of the whitening agent or any active ingredient.
  • the whitening strip is initially a film. However, once exposed to saliva in the oral cavity, the strip immediately, or virtually immediately, hydrates and becomes gelatinous. The hydration can result in a swelling or expansion of the gelatinous material. This gelatinous structure continues to hydrate, and thus becomes even more flexible during its time in the oral cavity until it dissolves with virtually no undesired residue.
  • the strip becomes more and more flexible and pliable and, thus, continues to adapt to the contours or morphology of the teeth upon which it is applied.
  • the continuous hydration causes an increase in the adhesive properties of the strip, which enables the strip to adapt and adhere to the contours of the teeth, including filling into the cavities and the spaces or interstices between the teeth, even better to carry out its whitening action in all desired surfaces of the teeth.
  • the ability of the present strip to cover, and thus in effect whiten, the interstices of teeth is a major advantage over prior art strips.
  • the adhesiveness increases and, thus, the strength of the contact with the teeth increases.
  • the increased adhesiveness improves the efficacy of the strip.
  • the solubility or dissolvability of the strip is controlled by the composition to enable dissolution of the strip or film over a desired pre- determined time frame.
  • the time frame of the dissolution of the strip can be adjusted based on the end benefit desired.
  • the nature of the water-soluble or water dispersible polymer system, the degree of crosslinking, if any, and the thickness of the strip should be adjusted.
  • the thickness of the strip is about 5 ⁇ m to about 2000 ⁇ m.
  • the thickness of the strip is about 50 ⁇ m to about 500 ⁇ m.
  • the present invention provides a whitening strip that can be targeted to deliver the whitening agent to the desired area at a desired delivery rate, for example, within about 1 minute to about 360 minutes, preferably from about 1 minute to about 30 minutes, and most preferably from about 5 minutes to about 20 minutes, to whiten the teeth.
  • the whitening agent or another desired agent can be encapsulated in a water-soluble or water dispersible shell and incorporated within or on a surface of the whitening strip, or a layer of the whitening strip, to further control the delivery rate.
  • the whitening strip preferably does not have a backing or backing layer.
  • a backing layer as defined in this application means the outermost layer opposite the layer contacting the tooth surface that is dissolvable and is a functional part of a multi-layer whitening strip.
  • the backing layer aids in comfort, such as, for example, it prevents unwanted adhesion to surfaces, other than the teeth, while in the oral cavity. If a backing layer is used in the whitening strip of the present invention, the backing layer must be completely dissolvable or water dispersible.
  • the whitening strip of the present invention has a polymer system that includes a first polymer, namely water-soluble or water dispersible poly-(vinylpyrrolidone)(PVP) or any of its derivatives, and at least one second polymer.
  • the combination of the first and second polymers define the water-soluble and/or water swellable and/or water dispersible polymer system.
  • the polymer system has adhesive properties, such that when it is brought to the teeth, the strip will adhere to the teeth.
  • the second polymer that can be used with the first polymer to produce the water-soluble or water dispersible polymer system according to the present invention includes one or more of: an alkyl vinyl ether/maleic anhydride copolymer, alkyl vinyl ether/maleic acid copolymer, alkali metal or an amine salt of alkyl vinyl ether/maleic acid copolymer, partially or fully crosslinked alkyl vinyl ether/maleic anhydride copolymer, vinyl acetate copolymer, polyacrylates, polyurethane interpolymers, chitosan, poly(acrylic acid), polyvinyl alcohol), polyvinyl alcohol-g-ethylene glycol) copolymer, cellulose derivatives, hydroxy-propyl-methyl cellulose, hydroxyl- ethyl cellulose, hydroxy-propyl cellulose, poly(ethylene oxide), poly(propylene oxide), Polyquaterium-11 , Polyquaterium-39, poloxamer, carbomer, gelatin, starch, al
  • the combination of the first and second polymers is preferably one or more of the following: a poly(vinylpyrrolidone)-alkyl vinyl ether/maleic anhydride copolymer, poly(vinylpyrrolidone)-alkyl vinyl ether/maleic acid copolymer, poly(vinylpyrrolidone)-alkali metal or an amine salt of alkyl vinyl ether/maleic acid copolymer, poly(vinylpyrrolidone)-partially or fully crosslinked alkyl vinyl ether/maleic anhydride copolymer, poly(vinylpyrrolidone)-vinyl acetate copolymer, poly(vinylpyrrolidone)- polyurethane interpolymer, poly(vinylpyrrolidone)-chitosan, poly(vinylpyrrolidone)-polyacrylates, poly(vinylpyrrolidone)-poly(acrylic acid), poly(vinylpyrrol
  • Preferred commercial examples of such a first polymer includes poly alkyl vinyl ether-maleic acid copolymer (PVM/MA copolymer), such as, Gantrez AN 119, AN 139, S-97 and MS-955, polyvinyl alcohol); poly(acrylic acid); Poloxamer 407 (Pluronic); poly(vinyl-pyrrolidone-co- vinylacetate) copolymer (PVP/VA copolymer), such as Luviskol VA and Plasdone S630 PVP/VA; poly(vinylpyrrolidone) (PVP, K-15 to about K-120); Polyquaterium-11 (Gafquat 755N); Polyquaterium-39 (Merquat plus 3330); carbomer (Carbopol); hydroxypropyl-methyl cellulose; hydroxyl-ethyl cellulose; hydroxypropyl-cellulose; gelatin; and alginate salt such as sodium alginate.
  • PVM/MA copolymer poly alky
  • polyurethanes examples include polycarbamyl polyglycol esters and poly(vinylpyrrolidone-polyurethane) interpolymer, such as, a poly(vinylpyrrolidone/polycarbamyl) polyglycol ester interpolymer.
  • the combination of the first and second polymers is a combination of PVP and a polymer.
  • the polymers can favorably interact or complex to effectively increase the molecular weight of the polymer mixture.
  • a linking agent can also be incorporated to promote the interaction between polymers. The effective increase in molecular weight results in a decrease in the rate of dissolution of the strip.
  • Aquamere, Chitosan and Pecogel is accomplished through hydrogen bonding. Such interactions enable the polymer complex to bind onto the teeth and thereby provide effective whitening of the teeth.
  • the water-soluble or water dispersible polymer system is present up to about 99.9 wt% based on the total weight of the whitening strip. More preferably, the polymer system is about 60 wt% to about 98 wt% of the total weight of the whitening strip.
  • the amount of the first polymer is about 1 wt% to about 99 wt%, and preferably about 25 wt% to about 75 wt%, of the total weight of the whitening strip.
  • the amount of the second polymer is about 1 wt% to about 80 wt%, and preferably about 5 wt% to about 50 wt%, of the total weight of the whitening strip.
  • the whitening agent which is an active agent, in the strip can, upon contact with saliva, release the active agent onto the teeth in the oral cavity.
  • the active agent can permeate through the film and be released to the surface where it is applied, including surfaces, such as, enamel, gum tissue and tongue.
  • the whitening agents that can be used in the present invention include hydrogen peroxide; carbamide peroxide; peroxycarbamate; persulfate, such as, persulfate salt or percarbonate salt; a perboric acid; perborate salt; PVP-hydrogen peroxide complex; calcium peroxide; metal chlorite (e.g. calcium chlorite, barium chlorite, magnesium chlorite, lithium chlorite, sodium chlorite, and potassium chlorite), hydroperoxide; peroxyacids; organic peroxides (e.g. benzoyl peroxide) chlorine dioxide; hydrogen peroxide adduct of carbodiimide persulfate; peroxide-generating compounds (e.g. azobisisobutyronitrile), phosphates, polyphosphates, alkali metal phosphates, alkali metal polyphosphates, sodium tripolyphosphate, or any combinations thereof.
  • metal chlorite e.g. calcium chlorite, barium chlorite
  • the whitening agent is present up to about 99 wt% based on the total weight of the whitening strip.
  • the whitening agent is about 0.5 wt% to about 99 wt% of the total weight of the whitening strip. More preferably, the whitening agent is about 2 wt% to about 75 wt% of the total weight of the whitening strip.
  • the whitening agent is an alkali metal polyphosphate, such as sodium tripolyphosphate, and it is present in an amount about 7.5 wt% to about 25 wt% of the total weight of the whitening strip.
  • the whitening strip can also have an ingredient that further enhances benefits to the oral cavity and teeth.
  • ingredients include: an antimicrobial agent, a mineralization compound, a stain prevention compound, a desensitization compound, an anti-calculus agent, a flavoring agent, an anti-inflammatory agent, an antioxidant, a volatile sulfur scavenger, an odorant neutralizer, and/or a vitamin.
  • the whitening strip may also have a penetration enhancer, a plasticizer, a preservative, a surfactant or wetting agent, an anesthetic, an anti-allergenic, a pharmaceutical, or any combinations thereof.
  • the whitening strip is preferably free of surfactants that are undesired in the oral cavity.
  • antimicrobial agents can preferably be used in the present whitening strip: polyphenols (e.g. triclosan) zinc salts, stannous fluoride, chlorhexidine, hexetidine, sanguinarine, benzalkonium chloride, salicylanilide, domiphen bromide, cetylpyridinium chloride, tetradecylpyridinium chloride (TPC), N-tetradecyl-4-ethylpyridinium chloride (TDEPC), octenidine, delmopinol, octapinol, and other piperidine derivatives, iron/stannous ion agents, antibiotics such as augmentin, amoxicillin, tetracycline, doxycycline, minocycline, and metronidazole, and analogs and salts of the above, essential oils including thymol, menthol, eugenol, geraniol, carvacrol, citral, hin
  • the following mineralization compounds are preferred for use in the present whitening strip: sodium monoflurophosphate, potassium monofluorophosphate, magnesium monofluorophosphate, acidulated fluorophosphate, amine fluoride, water-soluble salts of fluoride, such as, sodium fluoride, potassium fluoride, calcium fluoride, stannous fluoride, sodium fluorosilicate, bis-salicylato-bis-fluorotitanium (IV), ammonium fluorosilicate, calcium salt, phosphate salt, calcium salt/phosphate salt, calcium salt/ionic fluoride sources, zinc salt/phosphate salt), or any combinations thereof.
  • fluoride such as, sodium fluoride, potassium fluoride, calcium fluoride, stannous fluoride, sodium fluorosilicate, bis-salicylato-bis-fluorotitanium (IV), ammonium fluorosilicate, calcium salt, phosphate salt, calcium salt/phosphate salt, calcium salt/ionic fluoride sources, zinc salt
  • desensitization compounds can preferably be used in the present whitening strip: water-soluble potassium salt including potassium nitrate, potassium citrate, potassium chloride, potassium bicarbonate, potassium oxalate, and tubular occlusion compounds (e.g., ferric oxalate), or any combinations thereof.
  • water-soluble potassium salt including potassium nitrate, potassium citrate, potassium chloride, potassium bicarbonate, potassium oxalate, and tubular occlusion compounds (e.g., ferric oxalate), or any combinations thereof.
  • the following anti-calculus agents can preferably be used in the present whitening strips: phosphates, pyrophosphates, polyphosphates, phosphonates (e.g. ethane-1-hydroxy-1 ,1-diphosphonate, 1- azacycloheptane-1 ,1-diphosphonate) polyphosphonates, polyacrylates and other polycarboxylates, ethylenediaminetetraacetic acid and other calcium chelators, carboxylic acids and their salts, zinc salts (e.g. sodium zinc citrate), PVM/M A copolymer or other polymers which interfere with crystal nucleation or growth, or any combinations thereof. It should be understood that when phosphate anti-calculus agent is used in conjunction with phosphate whitening agent, the phosphate anti-calculus agent(s) used is typically different than the phosphate whitening agent(s) used.
  • phosphonates e.g. ethane-1-hydroxy-1 ,1-diphosphonate
  • flavoring agents can preferably be used in the present whitening strip: flavoring oils, e.g., oils of spearmint, peppermint, wintergreen, sassafras, clove, sage, eucalyptus, marjoram, cinnamon, lemon, menthol, anethole, thymol, parsley oil, oxanone and orange, alpha- irisone, cassia, marjoram, oils thereof, propenyl guaethol, and methyl salicylate.
  • flavoring oils e.g., oils of spearmint, peppermint, wintergreen, sassafras, clove, sage, eucalyptus, marjoram, cinnamon, lemon, menthol, anethole, thymol, parsley oil, oxanone and orange, alpha- irisone, cassia, marjoram, oils thereof, propenyl guaethol, and methyl salicylate.
  • Sweetening agents including, but not limited to, sucrose, lactose, maltose, sorbitol, xylitol, sodium cyclamate, sucralose, acesulfame-K, aspartame, and sodium saccharin. Any combinations of the preceding flavoring agents are also suitable for use in the whitening strip.
  • anti-inflammatory agents can preferably be used in the present whitening strips: non-steroidal anti-inflammatory agents, such as, ketorolac, flurbiprofen, ibuprofen, naproxen, indomethacin, aspirin, ketoprofen, piroxicam, meclofenamic acid, or any combinations thereof. Also, steroidal and non-steroidal anti-inflammatory agents and plant extracts that have demonstrated anti-inflammatory activities can be used.
  • antioxidants can preferably be used in the present whitening strips: Vitamin E, ascorbic acid, Uric acid, kojic acid, coenzyme compounds (e.g. coenzyme Q-10), carotenoids, Vitamin A, flavonoids and polyphenols, herbal antioxidants, melatonin, aminoindoles, lipoic acids, or any combinations thereof.
  • antioxidants include: rosemary extract, tocopherol, a derivative of tocopherol including a tocotriene, carotene, a carotenoid, a phenolic antioxidant including a phenolic acid, a bioflavonoid, a plant extract, curcumin, tetrahydrocurcumin, camphorol, quercetine, epigenine, or any mixtures thereof.
  • vitamins can preferably be used in the present whitening strips: Vitamin K, retinol (vitamin A), tocopherol, or any combinations thereof.
  • the whitening strip can be prepared by solution deposition, film- casting, dye-casting or extrusion.
  • the strip In operation, upon contact with the teeth and moisture, the strip, due to the polymer system, hydrates in such a manner as to conform to the contours of the teeth and the interstices, filling any space it encounters. As a result, the interaction of the whitening composition with the surface of the teeth and the interstices between the teeth becomes more intimate and stronger over time.
  • the adhesive properties of the strip continue to improve thereby providing better, intimate contact of the strip with and adhesion to the morphology of the teeth. It should be noted that unlike the strips described in the prior art, the whitening strip of the present invention does not require a backing layer. In fact, the whitening strip, according to the present invention, preferably does not have a backing layer.
  • the whitening action of the strip is completed within less than about 60 minutes.
  • contacting the teeth with the whitening strip for a period of time from about 1 minute to about 25 minutes is sufficient to whiten the teeth when used as directed in a whitening treatment regimen.
  • the present invention further provides a process for preparing a whitening strip in the form of a dry film.
  • the process has the steps of combining a whitening agent, a water-soluble or water dispersible polymer system that provides a stabilized matrix for the whitening agent, and a volatile solvent, to form a mixture; applying the mixture onto a surface to form a film of the mixture on the surface; and removing the volatile solvent to produce the whitening strip in the form of a dry film.
  • the volatile solvent can be any commonly used volatile solvent.
  • the preferred volatile solvent is either water or ethanol.
  • wetting agents such as Pluronic F- 68 can be used, and may remain in the final whitening strip, to improve spreading and film forming ability.
  • the present invention also provides a method of whitening teeth.
  • the method includes the step of applying onto the teeth a whitening strip for a period of time sufficient to produce a detectable improvement in the whiteness of the teeth.
  • the method of the present invention does not require the removal of the strip since the strip dissolves in the mouth.
  • Aquamere is a polyurethane ester.
  • Pluronic F-68 was added to reduce surface tension and improve spreading and film forming. It can be eliminated depending on the substrate on which the film is cast.
  • Plasdone K-90 was dissolved in a solution of water, carbamide peroxide, glycerin, pluronic F-68, EDTA, and citric acid. Films were dried at room temperature overnight followed by drying at +37 0 C ca. 30 minutes.
  • Plasdone K-90 was added as a 20% w/w solution in 0.1 M NaOH
  • Chitosan was added as a 2% w/w solution in 0.1 M NaOH Films were dried at room temperature overnight.
  • polymeric dissolvable films containing different levels of sodium tripolyphosphate (STP) were made and tested for their in vitro whitening performance.
  • STP sodium tripolyphosphate
  • Example 8 above exemplifies such a film.
  • the films were cast from ethanolic solutions of polyvinyl pyrrolidone) (PVP), hydroxypropylcellulose (HPC) and glycerin. Phosphate content was determined by ion chromatography.
  • the present invention also provides a multi-layered stack, i.e., a multi-layered whitening strip for whitening teeth.
  • the stack has a first controlled-dissolution, water-soluble or water dispersible whitening layer or film having a first whitening agent and a first water-soluble polymer system; and a second controlled-dissolution water-soluble or water dispersible whitening layer or film disposed on the first film and having a second agent (e.g. an accelerant) and a second water-soluble or water dispersible polymer system.
  • the first and the second films are joined to form a stack. Adhesives may or may not be necessary to join the two layers.
  • the overall dissolution of the strip in the oral cavity is controlled by the composition of each individual layer.
  • Multi-layered stacks can be formed from cast or extruded films, or any combination of cast and extruded films. Other means of depositing a discreet layer or domain (e.g., depositing spray dried materials) may also be used.
  • the layers can have the same or different compositions and can be organized in the stack in any manner or in any form, including random and/or ordered arrangements and repeating units.
  • Each individual layer within the strip can be made of identical ingredients or the ingredients in each layer can be varied to provide enhanced and/or multiple benefits.
  • An example of a benefit provided by the multi-layered strip is the ability to provide a stable delivery system for incompatible ingredients. Incompatible ingredients can be separated within discreet domains until the strip is hydrated during use.
  • the multi-layer whitening strip can also have one or more layers of the first and/or the second controlled-dissolution water-soluble or water dispersible whitening films in single or repeating units.
  • each of the layers of the first and/or the second controlled- dissolution water-soluble or water dispersible whitening films can have different formulations to provide different rates of dissolution.
  • the multilayer strip can be designed to provide a directional diffusion of the whitening agents from the multi-layer strip to the teeth by selection of layers with varying dissolution rates.
  • each layer can have one or more zones.
  • a zone is a region in a layer.
  • a strip can have a zone containing a desensitizing agent, preferably about the periphery of the strip.
  • the multi-layered strip can have peroxide containing films and bleaching accelerators separated in the particular layers, which, upon dissolution of the strip, can accelerate whitening without the need for pre-mixing of whitening agents and accelerators. This layered system provides a stable environment for bleaches and accelerators within the same strip.
  • the multi-layered strips or films can also promote mineralization, which can be helpful in preventing tooth sensitivity. Mineralization in this manner can also help to increase the opacity of the teeth and subsequently render the teeth whiter in appearance.
  • the multi-layered strips that allow different rates of the active diffusion of the ingredient can promote uni-directional delivery of the active to the desired site. For example, if such devices are applied to the teeth to promote delivery directly to the tooth, less active ingredient would be lost into the oral cavity.
  • multi-layered strips Among the benefits of multi-layered strips is the ability to combine in the layer or film, ingredients that are normally incompatible thereby providing such incompatible ingredients in a single delivery system.
  • peroxide activation can be achieved with, for example, a dual layered film, one layer containing the peroxide, and the other layer containing an activator, such as, a pH adjuster.
  • different ingredients can be placed in separate film domains until hydration in the oral cavity causes them to combine.
  • films or layers with differing dissolution rates can be developed to promote direction of an agent so that the agent is delivered to the surface of attachment, for example, peroxide into enamel, or out into the oral cavity, for example, slow release flavor delivery system.
  • layers can contain materials, such as, polymer systems that can be readily solubilized in the layer they reside.
  • solubility of these materials can be reduced with components in separate layers to promote a formation of desirable residues on surfaces. This can result in a lingering benefit, for example, long lasting flavor or a sensitivity treatment of prolonged duration.
  • films or layers according to the present invention are generally described with respect to oral care and treatment, such films or layers can be used in denture care products, smoking cessation products, dermatological treatments and systems for general drug delivery through buccal surfaces in the oral cavity.
  • the whitening strip can have two or more zones or domains on the surface of a layer of the strip.
  • a zone is an area on a layer of a whitening strip that can separate ingredients (whether compatible or incompatible ingredients) from one another until the ingredients are combined during dissolution of the whitening strip.
  • each zone can provide an area on the whitening strip that has a specific ingredient that can provide a specific benefit, such as, for example, anti- irritation or an anti-hypersensitivity ingredient along the gingival margin.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
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  • Oral & Maxillofacial Surgery (AREA)
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  • Inorganic Chemistry (AREA)
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  • Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)

Abstract

La présente invention concerne une bande soluble pour blanchir les dents. La bande, qui est de préférence une couche unique, a un agent de blanchiment et un système à base de polymère hydrosoluble ou dispersible dans l’eau. La dissolution de la composition blanchissante est contrôlée par l’interaction entre la composition blanchissante et l’environnement buccal contenant de la salive. La présente invention concerne en outre un procédé pour la préparation d’une bande blanchissante sous la forme d’un film sec et un procédé pour blanchir les dents.
PCT/US2005/035518 2005-03-31 2005-10-04 Bande soluble pour blanchir les dents WO2006107334A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
AU2005330297A AU2005330297A1 (en) 2005-03-31 2005-10-04 Dissolvable tooth whitening strip
JP2008504010A JP2009521396A (ja) 2005-03-31 2005-10-04 溶解可能な歯のホワイトニングストリップ
US11/910,298 US20090010970A1 (en) 2005-03-31 2005-10-04 Dissolvable tooth whitening strip
EP05802954A EP1871337A1 (fr) 2005-03-31 2005-10-04 Bande soluble pour blanchir les dents

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PCT/US2005/010941 WO2005097053A1 (fr) 2004-04-01 2005-03-31 Bande soluble pour blanchir les dents
USPCT/US2005/010941 2005-03-31

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WO2006107334A1 true WO2006107334A1 (fr) 2006-10-12

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EP (1) EP1871337A1 (fr)
JP (1) JP2009521396A (fr)
AU (1) AU2005330297A1 (fr)
WO (1) WO2006107334A1 (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2011506488A (ja) * 2007-12-17 2011-03-03 ノヴァファーム・リサーチ・（オーストラリア）・ピーティーワイ・リミテッド 殺ウイルス用組成物
CN102652712A (zh) * 2011-03-04 2012-09-05 全球生技股份有限公司 具抗菌的口腔护理组成物及其制法
WO2013172999A1 (fr) * 2012-05-16 2013-11-21 Mewa Singh Compositions pharmaceutiques pour l'administration de médicaments pratiquement insolubles dans l'eau
TWI619511B (zh) * 2012-10-31 2018-04-01 Kao Corp Dental patch
EP3233208A4 (fr) * 2014-12-17 2018-06-06 Steven D. Jensen Film de blanchiment dentaire utilisant des sels de tripolyphosphate
CN109734354A (zh) * 2019-02-20 2019-05-10 赵兴华 一种混凝土液体速凝剂的制备方法
WO2020217054A1 (fr) * 2019-04-21 2020-10-29 Biofilm Limited Film de blanchiment des dents, son procédé de fabrication et procédé d'utilisation d'un tel film
GB2600137A (en) * 2020-10-22 2022-04-27 Biofilm Ltd Dental kit comprising a dental aligner and dissolvable films

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JP2011506488A (ja) * 2007-12-17 2011-03-03 ノヴァファーム・リサーチ・（オーストラリア）・ピーティーワイ・リミテッド 殺ウイルス用組成物
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CN102652712A (zh) * 2011-03-04 2012-09-05 全球生技股份有限公司 具抗菌的口腔护理组成物及其制法
AU2013263292B2 (en) * 2012-05-16 2018-03-08 Maninder SANDHU Pharmaceutical compositions for the delivery of substantially water-insoluble drugs
WO2013172999A1 (fr) * 2012-05-16 2013-11-21 Mewa Singh Compositions pharmaceutiques pour l'administration de médicaments pratiquement insolubles dans l'eau
TWI619511B (zh) * 2012-10-31 2018-04-01 Kao Corp Dental patch
EP3233208A4 (fr) * 2014-12-17 2018-06-06 Steven D. Jensen Film de blanchiment dentaire utilisant des sels de tripolyphosphate
CN109734354A (zh) * 2019-02-20 2019-05-10 赵兴华 一种混凝土液体速凝剂的制备方法
WO2020217054A1 (fr) * 2019-04-21 2020-10-29 Biofilm Limited Film de blanchiment des dents, son procédé de fabrication et procédé d'utilisation d'un tel film
CN114126567A (zh) * 2019-04-21 2022-03-01 必修复有限公司 牙齿美白膜、其制备工艺和使用该牙齿美白膜的方法
CN114126567B (zh) * 2019-04-21 2024-01-30 必修复有限公司 牙齿美白膜、其制备工艺和使用该牙齿美白膜的方法
GB2600137A (en) * 2020-10-22 2022-04-27 Biofilm Ltd Dental kit comprising a dental aligner and dissolvable films
GB2600137B (en) * 2020-10-22 2023-08-23 Bsolve Ltd Dental kit comprising a dental aligner and dissolvable films

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