IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0839419
(2004-05-05)
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등록번호 |
US-7264471
(2007-09-04)
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발명자
/ 주소 |
- Malcmacher,Louis J.
- Fischer,Dan E.
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출원인 / 주소 |
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
8 인용 특허 :
78 |
초록
▼
Dental bleaching methods and kits employ a dental bleaching composition, a protective composition and a barrier layer. The dental bleaching composition is positioned so as to contact a person's tooth surfaces. The protective composition is positioned so as to shield a person's gingival tissue from t
Dental bleaching methods and kits employ a dental bleaching composition, a protective composition and a barrier layer. The dental bleaching composition is positioned so as to contact a person's tooth surfaces. The protective composition is positioned so as to shield a person's gingival tissue from the bleaching composition during tooth bleaching. The barrier layer protects at least the bleaching composition from saliva and/or mechanical forces during tooth bleaching. The dental bleaching composition and protective composition can be in the form of a sticky and viscous gel. The protective composition may alternatively be a flexible polymerizable material. The barrier layer may be a substantially flat sheet, strip or patch, or it may comprise a dental tray.
대표청구항
▼
What is claimed is: 1. A method of bleaching at least one of a person's teeth, comprising: prior to applying a moisture-resistant barrier layer, applying a dental bleaching composition onto at least one tooth surface, wherein said bleaching composition comprises at least one bleaching agent and a c
What is claimed is: 1. A method of bleaching at least one of a person's teeth, comprising: prior to applying a moisture-resistant barrier layer, applying a dental bleaching composition onto at least one tooth surface, wherein said bleaching composition comprises at least one bleaching agent and a carrier for said bleaching agent; applying a protective composition on or adjacent to gingival tissue in order to form a barrier between the gingival tissue and said bleaching composition, and wherein the protective composition includes at least one tissue adhesion agent that includes at least one hydrophilic polymer, and a dental bleaching agent in a lower concentration than the dental bleaching agent contained in said dental bleaching composition; placing a moisture-resistant barrier layer over the tooth surface in order to protect said bleaching composition from saliva and/or mechanical forces; and bleaching the tooth surface by means of said bleaching composition while protecting the gingival tissue near the tooth surface by means of said protective composition. 2. A method as defined in claim 1, said dental bleaching composition being applied over the at least one tooth using a syringe. 3. A method as defined in claim 1, said dental bleaching composition being applied to a plurality of tooth surfaces. 4. A method as defined in claim 1, wherein said dental bleaching composition is applied to labial and lingual surfaces of at least one tooth. 5. A method as defined in claim 1, wherein said dental bleaching composition is a sticky and viscous gel that contributes to holding said barrier layer over said tooth. 6. A method as defined in claim 1, wherein said dental bleaching composition further comprises at least one tissue adhesion agent selected from the group comprising polyvinyl pyrrolidone (PVP), carboxypolymethylene, polyethylene oxide, polyacrylic acid, copolymer of polyacrylic acid, polyacrylate, polyacrylamide, copolymer of polyacrylic acid and polyacrylamide, PVP-vinyl acetate copolymer, carboxymethylcellulose, carboxypropylcellulose, polysaccharide gum, or protein. 7. A method as defined in claim 1, wherein said dental bleaching composition further comprises at least one member selected from the group comprising dental desensitizing agents, stabilizing agents, remineralizing agent, antimicrobial agents, antiplaque agents, and anti-tartar agents. 8. A method as defined in claim 1, wherein said protective composition is applied prior to placing said barrier layer. 9. A method as defined in claim 8, wherein said protective composition is applied prior to applying said dental bleaching composition. 10. A method as defined in claim 1, said protective composition being applied on or adjacent to the gingival tissue using a syringe. 11. A method as defined in claim 1, further comprising applying said protective composition to said barrier layer and than placing said barrier layer over the tooth surface and gingival tissue to thereby apply said protective composition on or adjacent to the gingival tissue as the barrier layer is placed over the tooth surface and gingival tissue. 12. A method as defined in claim 1, wherein said protective composition is more adhesive than said dental bleaching composition. 13. A method as defined in claim 1, wherein said protective composition comprises a sticky and viscous gel, said barrier layer being placed so as to extend over at least a portion of the gingival tissue in order to protect said protective composition from saliva and/or mechanical forces. 14. A method as defined in claim 1, wherein said protective composition comprises a tissue adhesion agent that is at least one hydrophilic polymer selected from the group comprising polyvinyl pyrrolidone (PVP), carboxypolymethylene, polyethylene oxide, polyacrylic acid, copolymer of polyacrylic acid, polyacrylate, polyacrylamide, copolymer of polyacrylic acid and polyacrylamide, PVP-vinyl acetate copolymer, carboxymethylcellulose, carboxypropylcellulose, polysaccharide gum, and protein. 15. A method as defined in claim 1, wherein said protective composition comprises less than 10% by weight of said dental bleaching agent and wherein said bleaching composition comprises at least 10% by weight of said dental bleaching agent. 16. A method as defined in claim 1, wherein said protective composition further comprises at least one member selected from the group comprising dental desensitizing agents, remineralizing agent, antimicrobial agents, preservatives, antiplaque agents, anti-tartar agents, gingival soothing agents, anesthetics, antioxidants, flavorants, mouth freshening agents, detergents, and colorants. 17. A method as defined in claim 1, wherein said protective composition comprises a flexible polymerizable composition, the method further comprising curing said flexible polymerizable composition. 18. A method as defined in claim 1, wherein said barrier layer comprises a dental tray having at least two sidewalls that define a trough prior to being placed. 19. A method as defined in claim 18, said dental tray being preloaded with said protective composition prior to placing said dental tray. 20. A method as defined in claim 18, wherein said dental tray is thin and flexible, the method further comprising placing said dental tray over the tooth surface by means of a removable exoskeleton. 21. A method as defined in claim 1, wherein said barrier layer is a sheet prior to being placed over the tooth surface. 22. A method of bleaching at least one of a person's teeth, comprising: prior to applying a moisture-resistant barrier layer, applying a flexible polymerizable composition so as to at least partially cover a person's gingival margin and curing said polymerizable composition; prior to applying a moisture-resistant barrier layer, applying a dental bleaching composition onto at least one tooth surface, wherein said bleaching composition comprises at least one bleaching agent and a carrier for said bleaching agent; placing a moisture-resistant barrier layer over the tooth surface in order to protect said bleaching composition from at least one of saliva or mechanical forces; and bleaching the tooth surface by means of said bleaching composition while protecting the gingival tissue near the tooth surface by means of said flexible polymerizable composition. 23. A method as defined in claim 22, said dental bleaching composition and said flexible polymerizable composition each being applied using a syringe. 24. A method of bleaching at least one of a person's teeth, comprising: prior to applying a moisture-resistant barrier layer, applying a dental bleaching composition onto at least one tooth surface, wherein said bleaching composition comprises at least one bleaching agent and a carrier for said bleaching agent; providing a moisture-resistant barrier layer that includes a protective composition applied thereto, wherein said protective composition comprises at least one hydrophilic polymer as an oral tissue adhesion agent and is a sticky and viscous gel, and a dental bleaching agent in a lower concentration than the dental bleaching agent contained in said dental bleaching composition; placing said moisture-resistant barrier layer over the tooth surface and at least a portion of adjacent gingival tissue in order to apply said protective adhesive composition on or adjacent to gingival tissue near the tooth surface in order to form a barrier between the gingival tissue and said bleaching composition and to protect said bleaching composition and protective composition from at least one of saliva or mechanical forces; and bleaching the tooth surface by means of said bleaching composition while protecting the gingival tissue near the tooth surface by means of said protective composition. 25. A kit for providing a dental bleaching composition, a protective composition and a moisture-resistant barrier material for use in practicing the method of bleaching at least one of a person's teeth as defined in any of claims 1-14 or 15-24. 26. A kit as defined in claim 25, wherein the dental bleaching composition comprises a sticky and viscous gel. 27. A kit as defined in claim 25, wherein the protective composition comprises a sticky and viscous gel. 28. A kit as defined in claim 25, wherein the protective composition comprises a flexible polymerizable composition. 29. A kit as defined in claim 25, wherein the barrier layer comprises a dental tray or a substantially flat sheet, strip or patch.
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