WO1999062472A1 - System for whitening teeth surfaces - Google Patents

System for whitening teeth surfaces Download PDF

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Publication number
WO1999062472A1
WO1999062472A1 PCT/US1999/012325 US9912325W WO9962472A1 WO 1999062472 A1 WO1999062472 A1 WO 1999062472A1 US 9912325 W US9912325 W US 9912325W WO 9962472 A1 WO9962472 A1 WO 9962472A1
Authority
WO
WIPO (PCT)
Prior art keywords
strip member
member according
whitening
teeth
whitening agent
Prior art date
Application number
PCT/US1999/012325
Other languages
French (fr)
Inventor
Robert O. Wolf
Original Assignee
Wolf Robert O
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 Wolf Robert O filed Critical Wolf Robert O
Priority to AU45458/99A priority Critical patent/AU4545899A/en
Publication of WO1999062472A1 publication Critical patent/WO1999062472A1/en

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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
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00—Dental auxiliary appliances
    • A61C19/06—Implements for therapeutic treatment
    • A61C19/063—Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • A61C19/066—Bleaching devices; Whitening agent applicators for teeth, e.g. trays or strips
    • 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
    • A61K8/22—Peroxides; Oxygen; Ozone

Definitions

  • the present invention generally relates to a tooth whitening system, and more particularly to a system for applying a composition to teeth in order to whiten or bleach the surface of the teeth.
  • a current representative technique includes the steps of: (1) making an alginate impression of the patient's teeth; (2) making a stone cast of the impression; (3) vacuum forming a tray from the cast, and trimming to exclude gingival coverage; and (4) instructing the patient to: (a) place 2-3 drops of a bleaching solution into each area of each tooth to be bleached, (b) place the tray in the mouth, (3) expectorate any excess bleaching solution, (4) change the bleaching solution every 1 to 2.5 hours, and (5) remove the tray during meals.
  • the foregoing steps can be complicated, time-consuming and inconvenient.
  • the present invention addresses these and other drawbacks of prior art tooth whitening systems.
  • An advantage of the present invention is the provision of a tooth whitening system which is simple and convenient to use.
  • Still another advantage of the present invention is the provision of a tooth whitening system which is fast and effective. Still another advantage of the present invention is the provision of a tooth whitening system which requires minimal time for application.
  • Still another advantage of the present invention is the provision of a tooth whitening system which does not require the use of a tray.
  • Yet another advantage of the present invention is the provision of a tooth whitening system which uses an adhesive as a carrier.
  • Yet another advantage of the present invention is the provision of a tooth whitening system which can be suitably customized to provide a whitening composition to only tooth surfaces.
  • Yet another advantage of the present invention is the provision of a tooth whitening system which is inexpensive to manufacture.
  • Fig. 1 shows an enlarged perspective view of a whitening strip according to a preferred embodiment of the present invention
  • Fig. 2 shows an enlarged perspective view of a whitening strip according to an alternative embodiment
  • Fig. 3 shows a whitening strip, according to another embodiment of the present invention, as applied to the teeth
  • Fig. 4 is a cross-sectional view of the whitening strip shown in Fig. 3, as adhered to the teeth;
  • Fig. 5 is a cut-away view of the whitening strip shown in Fig. 3.
  • Fig. 1 shows a whitening strip 10 according to a preferred embodiment of the present invention.
  • Whitening strip 10 is generally comprised of a base layer 20 and a carrier layer 30.
  • Carrier layer 30 is comprised of a dental bleaching or whitening agent and an adhesive.
  • the whitening agent may take any number of forms, including hydrogen peroxide, carbamide peroxide, trichloroisocyanuric acid, tetrasodium pyrophosphate, chlorine dioxide, and sodium perborate.
  • the whitening agent may include a photo initiator, such as camphor quinone.
  • a photo initiator makes the whitening agent light activated.
  • Camphor quinone is activated by a visible light source, such as a halogen light (450 to 550 nm wave-length).
  • the whitening agent could be activated by the use of a conventional dental bonding light, which is commonly found in most dental offices, or a dental bonding laser. It should also be appreciated that the whitening agent could be formed such that it is activated by other means (e.g., salt).
  • the adhesive may take any number of forms.
  • the adhesive may take the form of nontoxic polymers, including natural or synthetic elastomers, such as polyisobutylene, styrene, butadiene, styrene isoprene block copolymers, acrylics, urethanes, silicones, styrene butadiene, copolymers, methyl acrylate copolymers, acrylic acid, polyacrylates, and polysaccharides such as, karaya gum, tragacanth gum. pectin, guar gum, cellulose, and celluluse derivatives such as methyl cellulose, propyl cellulose, cellulose acetate and the like.
  • the term "adhesive" as used herein means a substance, inorganic or organic, natural or synthetic, that is capable of surface attachment to the intended application site.
  • Base layer 20 provides a backing material.
  • the backing material preferably takes the form of a flexible material, such as paper, a non-woven fabric or natural or synthetic polymer substance. The flexibility of the backing material allows whitening strip 10 to conform to the arrangement of a row of teeth. It should be appreciated that base layer 20 may include a plurality of layers of backing material.
  • the whitening agent is dispersed in the adhesive to form a carrier layer 32, which is applied to base layer 20. It should be appreciated that a removable film layer (not shown) may be applied over carrier layer 30. The removable film layer suitably protects carrier layer 30 prior to application of whitening strip 10 to the teeth.
  • whitening strip 10 has a width dimension suitable to cover a row of teeth (upper or lower). Therefore, one whitening strip is applied to the upper set of teeth, while a second whitening strip is applied to the lower set of teeth.
  • the length dimension of whitening strip 10 is determined by the amount of coverage desired. In this regard, the number of teeth which it is desired to whiten will determine the dimensions of whitening strip 10. For instance, it may be desired to only whiten the front teeth, which are most easily seen by others. Accordingly, the length of whitening strip 10 can be reduced in this case, as compared to the case where it is desired to whiten all of the teeth.
  • whitening strip 10 The duration of application of whitening strip 10 to the teeth will depend upon the type and concentration of the whitening agent, as well as the type and intensity of stain.
  • whitening strip 10' is shaped to fully cover the teeth, while avoiding contact with the gums.
  • a series of notches 40 are formed to accommodate the gum line.
  • Figs. 3-5 illustrate yet another embodiment of the present invention.
  • Fig. 3 shows the manner in which a whitening strip is applied to a set of teeth.
  • whitening strip 10" includes an active section A having a whitening agent, and an inactive section I that does not include a whitening agent.
  • Active section A takes the general shape of the teeth (Fig. 5), so as to avoid contact with gum tissue when whitening strip 10" is applied to the teeth in the manner illustrated in Fig. 3.
  • Inactive section is located above and below the active section A. In this respect, the upper inactive section will contact gum tissue, while the lower inactive section will contact the back surface of the teeth (Fig. 4). Adhesive is applied to both the active and inactive sections to adhere whitening strip 10" to the teeth and gum tissue.
  • the whitening strip may include active ingredients other than whitening agents. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention or equivalents.

Abstract

A system for whitening teeth surfaces in the form a whitening strip. The strip has a plurality of layers including a base layer and a carrier layer. The carrier layer includes a whitening agent and an adhesive for applying the strip to teeth. The base layer is a flexible layer for supporting the carrier layer.

Description

SYSTEM FOR WHITENING TEETH SURFACES
Field of Invention
The present invention generally relates to a tooth whitening system, and more particularly to a system for applying a composition to teeth in order to whiten or bleach the surface of the teeth.
Background of the Invention
Historically, a gradual darkening of the teeth has been accepted as a natural part of the aging process. Indeed, false teeth were often progressively darkened as a person aged to match an expected darkening of the teeth for a certain age. Relatively recent procedures have emerged to allow for whitening of the teeth, darkened by age, chemical discoloration or the like. To this end, many people have veneers placed over their teeth or have their teeth chemically bleached. For many years, teeth whitening involved an in-office procedure. More recently, however, a variety of over-the-counter tooth whitening products and methods have become available, including technology such as boil and bite trays, non- moldable trays (which may cover both upper and lower teeth), foam trays, and the like. A current representative technique includes the steps of: (1) making an alginate impression of the patient's teeth; (2) making a stone cast of the impression; (3) vacuum forming a tray from the cast, and trimming to exclude gingival coverage; and (4) instructing the patient to: (a) place 2-3 drops of a bleaching solution into each area of each tooth to be bleached, (b) place the tray in the mouth, (3) expectorate any excess bleaching solution, (4) change the bleaching solution every 1 to 2.5 hours, and (5) remove the tray during meals. The foregoing steps can be complicated, time-consuming and inconvenient. The present invention addresses these and other drawbacks of prior art tooth whitening systems.
Summary of the Invention According to the present invention there is provided a system for applying a composition to teeth in order to whiten or bleach the surface of the teeth. An advantage of the present invention is the provision of a tooth whitening system which is simple and convenient to use.
Still another advantage of the present invention is the provision of a tooth whitening system which is fast and effective. Still another advantage of the present invention is the provision of a tooth whitening system which requires minimal time for application.
Still another advantage of the present invention is the provision of a tooth whitening system which does not require the use of a tray.
Yet another advantage of the present invention is the provision of a tooth whitening system which uses an adhesive as a carrier.
Yet another advantage of the present invention is the provision of a tooth whitening system which can be suitably customized to provide a whitening composition to only tooth surfaces.
Yet another advantage of the present invention is the provision of a tooth whitening system which is inexpensive to manufacture.
Still other advantages of the invention will become apparent to those skilled in the art upon a reading and understanding of the following detailed description, accompanying drawings and appended claims.
Brief Description of the Drawings
The invention may take physical form in certain parts and arrangements of parts, a preferred embodiment and method of which will be described in detail in this specification and illustrated in the accompanying drawings which form a part hereof, and wherein: Fig. 1 shows an enlarged perspective view of a whitening strip according to a preferred embodiment of the present invention;
Fig. 2 shows an enlarged perspective view of a whitening strip according to an alternative embodiment;
Fig. 3 shows a whitening strip, according to another embodiment of the present invention, as applied to the teeth;
Fig. 4 is a cross-sectional view of the whitening strip shown in Fig. 3, as adhered to the teeth; and
Fig. 5 is a cut-away view of the whitening strip shown in Fig. 3.
Detailed Description of the Preferred Embodiment Referring now to the drawings wherein the showings are for the purposes of illustrating a preferred embodiment of the invention only and not for purposes of limiting same, Fig. 1 shows a whitening strip 10 according to a preferred embodiment of the present invention. Whitening strip 10 is generally comprised of a base layer 20 and a carrier layer 30. Carrier layer 30 is comprised of a dental bleaching or whitening agent and an adhesive. The whitening agent may take any number of forms, including hydrogen peroxide, carbamide peroxide, trichloroisocyanuric acid, tetrasodium pyrophosphate, chlorine dioxide, and sodium perborate. It should be appreciated that the combination of hydrogen peroxide and bleaching activators (such as trichloroisocyanuric acid and tetrasodium pyrophosphate) react to raise the pH of the system thereby producing perhydroxy radicals which are effective bleaching agents. The required concentration of whitening agent will vary depending upon its reactivity. In a preferred embodiment of the present invention, a 3% hydrogen peroxide composition is used. It should be appreciated that a 16% carbamide peroxide composition is generally equivalent to a 5% hydrogen peroxide composition.
In an alternative embodiment of the present invention, the whitening agent may include a photo initiator, such as camphor quinone. A photo initiator makes the whitening agent light activated. Camphor quinone is activated by a visible light source, such as a halogen light (450 to 550 nm wave-length). Accordingly, the whitening agent could be activated by the use of a conventional dental bonding light, which is commonly found in most dental offices, or a dental bonding laser. It should also be appreciated that the whitening agent could be formed such that it is activated by other means (e.g., salt).
The adhesive may take any number of forms. In this regard, the adhesive may take the form of nontoxic polymers, including natural or synthetic elastomers, such as polyisobutylene, styrene, butadiene, styrene isoprene block copolymers, acrylics, urethanes, silicones, styrene butadiene, copolymers, methyl acrylate copolymers, acrylic acid, polyacrylates, and polysaccharides such as, karaya gum, tragacanth gum. pectin, guar gum, cellulose, and celluluse derivatives such as methyl cellulose, propyl cellulose, cellulose acetate and the like. The term "adhesive" as used herein means a substance, inorganic or organic, natural or synthetic, that is capable of surface attachment to the intended application site.
Base layer 20 provides a backing material. The backing material preferably takes the form of a flexible material, such as paper, a non-woven fabric or natural or synthetic polymer substance. The flexibility of the backing material allows whitening strip 10 to conform to the arrangement of a row of teeth. It should be appreciated that base layer 20 may include a plurality of layers of backing material.
The whitening agent is dispersed in the adhesive to form a carrier layer 32, which is applied to base layer 20. It should be appreciated that a removable film layer (not shown) may be applied over carrier layer 30. The removable film layer suitably protects carrier layer 30 prior to application of whitening strip 10 to the teeth.
It should be appreciated that the present invention is similar to the composition and methods disclosed in United States Patent Nos. 5,234,957 and 5,332,576 (assigned to Noven Pharmaceuticals, Inc. of Miami, Florida), except that a suitable tooth bleaching or whitening agent replaces the local anesthetic agents. Accordingly, the foregoing patents are fully incorporated herein by reference.
To use whitening strip 10, the film layer is removed and carrier layer 32 is adhered to the teeth in an appropriate manner. In this regard, whitening strip 10 has a width dimension suitable to cover a row of teeth (upper or lower). Therefore, one whitening strip is applied to the upper set of teeth, while a second whitening strip is applied to the lower set of teeth. It should be appreciated that the length dimension of whitening strip 10 is determined by the amount of coverage desired. In this regard, the number of teeth which it is desired to whiten will determine the dimensions of whitening strip 10. For instance, it may be desired to only whiten the front teeth, which are most easily seen by others. Accordingly, the length of whitening strip 10 can be reduced in this case, as compared to the case where it is desired to whiten all of the teeth. The duration of application of whitening strip 10 to the teeth will depend upon the type and concentration of the whitening agent, as well as the type and intensity of stain. In the embodiment shown in Fig. 2 whitening strip 10' is shaped to fully cover the teeth, while avoiding contact with the gums. In this regard, a series of notches 40 are formed to accommodate the gum line.
Figs. 3-5 illustrate yet another embodiment of the present invention. Fig. 3 shows the manner in which a whitening strip is applied to a set of teeth. In this embodiment, whitening strip 10" includes an active section A having a whitening agent, and an inactive section I that does not include a whitening agent. Active section A takes the general shape of the teeth (Fig. 5), so as to avoid contact with gum tissue when whitening strip 10" is applied to the teeth in the manner illustrated in Fig. 3. Inactive section is located above and below the active section A. In this respect, the upper inactive section will contact gum tissue, while the lower inactive section will contact the back surface of the teeth (Fig. 4). Adhesive is applied to both the active and inactive sections to adhere whitening strip 10" to the teeth and gum tissue.
The invention has been described with reference to a preferred embodiment. Obviously, modifications and alterations will occur to others upon a reading and understanding of this specification. For instance, the whitening strip may include active ingredients other than whitening agents. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention or equivalents.

Claims

Having thus described the invention, it is now claimed:
1. A strip member for whitening teeth comprising:
a base layer; and
a carrier layer including a whitening agent, wherein said carrier layer is
applied to the base layer.
2. A strip member according to claim 1, wherein said carrier layer further
comprises an adhesive.
3. A strip member according to claim 1, wherein said whitening agent comprises
at least one of : hydrogen peroxide, carbamide peroxide, trichloroisocyanuric acid,
tetrasodium pyrophosphate, chlorine dioxide, and sodium perborate.
4. A strip member according to claim 1, wherein said whitening agent comprises
hydrogen peroxide and at least one bleaching activator.
5. A strip member according to claim 1, wherein said whitening agent includes a
photo initiator.
6. A strip member according to claim 5, where said photo initiator includes
camphor quinone.
7. A strip member according to claim 2, wherein said adhesive includes at least
one of : nontoxic polymers.
8. A strip member according to claim 7, wherein said nontoxic polymers include
at least one of natural and synthetic elastomers.
9. A strip member according to claim 8, wherein said natural and synthetic
polymers include at least one of: polyisobutylene, styrene, butadiene, styrene isoprene block
copolymers, acrylics, urethanes, silicones, styrene butadiene, copolymers, methyl acrylate copolymers, acrylic acid, polyacrylates, and polysaccharides such as, karaya gum, tragacanth
gum, pectin, guar gum, , cellulose, and celluluse derivatives.
10. A strip member according to claim 1, wherein said base layer is formed of a
flexible material.
1 1. A strip member according to claim 10, wherein said flexible material includes
at least on or paper, a non-woven fabric, natural polymer, and synthetic polymer.
12. A strip member according to claim 1, wherein said whitening agent is
dispersed in an adhesive.
13. A strip member according to claim 1, wherein said strip member further
comprises a removable film layer to protect said carrier layer.
PCT/US1999/012325 1998-06-03 1999-06-03 System for whitening teeth surfaces WO1999062472A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU45458/99A AU4545899A (en) 1998-06-03 1999-06-03 System for whitening teeth surfaces

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US8785098P 1998-06-03 1998-06-03
US60/087,850 1998-06-03

Publications (1)

Publication Number Publication Date
WO1999062472A1 true WO1999062472A1 (en) 1999-12-09

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WO2002007692A1 (en) * 1999-03-16 2002-01-31 Lion Corporation Tooth whitening sets
US6435873B1 (en) 2000-10-10 2002-08-20 3M Innovative Properties Company Medication delivery devices
EP1267812A1 (en) * 2000-03-17 2003-01-02 LG Household & Health Care Ltd. Patches for teeth whitening
US6514484B2 (en) 2001-03-19 2003-02-04 The Procter & Gamble Company Systems for delivering a cosmetic and/or therapeutic active to oral surfaces using an integral carrier
AT411146B (en) * 2002-05-03 2003-10-27 Schaetzner Reinhard Dr Applicator for applying dental treatment agent, e.g. bleach, medication or fluoride, to teeth and/or gums, has plastics matrix with soft bite and cavities enclosing agent
KR100430635B1 (en) * 1999-03-15 2004-05-10 더 프록터 앤드 갬블 캄파니 Shapes for tooth whitening strips
KR100457271B1 (en) * 2001-06-19 2004-11-16 주식회사 엘지생활건강 Peroxide-stabilized patches for teeth whitening
WO2004084752A3 (en) * 2003-02-10 2004-12-09 Palomar Medical Tech Inc Light emitting oral appliance and method of use
KR100471918B1 (en) * 2001-06-26 2005-03-08 주식회사 엘지생활건강 Patches for teeth whitening
KR100471921B1 (en) * 2001-06-20 2005-03-08 주식회사 엘지생활건강 Upgraded patches for teeth whitening
KR100471920B1 (en) * 2001-06-20 2005-03-08 주식회사 엘지생활건강 Dry type patches for teeth whitening
KR100471919B1 (en) * 2001-07-04 2005-03-08 주식회사 엘지생활건강 Flexible patches for teeth whitening
US6905672B2 (en) 1999-12-08 2005-06-14 The Procter & Gamble Company Compositions and methods to inhibit tartar and microbes using denture adhesive compositions with colorants
EP1565155A1 (en) * 2002-11-21 2005-08-24 LG Household & Health Care Ltd. Dry type patches safe for gum
US6946142B2 (en) * 2001-06-23 2005-09-20 Lg Household & Healthcare Ltd. Multi-layer patches for teeth whitening
US6986883B2 (en) 1999-09-09 2006-01-17 Discus Dental, Inc. Increased peroxide content tooth bleaching gel
US7060256B2 (en) 1999-09-09 2006-06-13 Discus Dental, Inc. Increased peroxide content tooth bleaching gel
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US8815215B2 (en) 2003-08-15 2014-08-26 Colgate-Palmolive Company Hydrophobic tooth whitening system and methods of use
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CN105411863A (en) * 2014-09-17 2016-03-23 沃康生技股份有限公司 Tooth paster with function of slowly releasing tooth whitening substance and application thereof
US9554976B2 (en) 2002-09-11 2017-01-31 The Procter & Gamble Company Tooth whitening product
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US9919168B2 (en) 2009-07-23 2018-03-20 Palomar Medical Technologies, Inc. Method for improvement of cellulite appearance
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Cited By (71)

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Publication number Priority date Publication date Assignee Title
US7122199B2 (en) * 1997-06-06 2006-10-17 The Procter & Gamble Company Methods for whitening teeth
KR100430635B1 (en) * 1999-03-15 2004-05-10 더 프록터 앤드 갬블 캄파니 Shapes for tooth whitening strips
WO2002007692A1 (en) * 1999-03-16 2002-01-31 Lion Corporation Tooth whitening sets
USRE42126E1 (en) * 1999-07-02 2011-02-08 The Procter & Gamble Company Delivery system for oral care compositions comprising organosiloxane resins using a removable backing strip
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