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|Title:||Process for applying antibacterial oral composition to dental implant areas|
|Abstract:||An oral gel composition suitable for application to teeth and gums, particularly of people having dental implants. The gel composition contains an aqueous orally acceptable gel vehicle, a substantially water-insoluble noncationic antibacterial antiplaque agent, such as 2,4,4'-trichloro-2'-hydroxyl-diphenyl ether (triclosan) and an antibacterial-enhancing agent which enhances delivery of said antibacterial agent to, and retention thereof on, oral surfaces. The gel composition is extruded from a syringe into contact with a dental implant area thereby causing the composition to be delivered to and retained on the dental implant area.|
|Inventor(s):||Gaffar; Abdul (Princeton, NJ), Santarpia, III; Ralph P. (Somerset, NJ)|
|Assignee:||Colgate Palmolive Company (New York, NY)|
|Filing Date:||May 18, 1995|
|Claims:||1. A process for attaching, adhering or bonding a plaque-inhibiting antibacterial agent to a dental implant area in the oral cavity, the implant being composed of a titanium alloy fixture affixed to alveolar bone, a titanium alloy collar transmucosal abutment at the gingiva mucosa surface where plaque tends to form and a porcelain prosthesis attached to said collar, which comprises |
placing an oral gel mucoadhesive composition in a dental syringe, which oral gel composition has a viscosity of about 150.times.10.sup.3 to about 360.times.10.sup.3 cps and comprises in an orally acceptable gel vehicle, an effective antiplaque amount of a substantially water insoluble noncationic antibacterial agent selected from the group consisting of halogenated diphenyl ethers, halogenated salicylanides, benzoic esters, halogenated carbanilides and phenolic compounds, at least one of an organic surface active agent and a flavoring oil solubilizing material for said antibacterial agent in amount sufficient to dissolve said antibacterial agent in saliva and about 0.005-6% by weight of an antibacterial-enhancing agent having utility as dentifrice or denture adhesive fixative or dental cement which contains at least one acidic delivery-enhancing functional group selected from the group consisting of carboxylic, phosphinic, phosphonic, and sulfonic acids, and their salts, and mixtures thereof and at least one organic retention-enhancing group, wherein said retention-enhancing group comprises the formula--(X).sub.n --R wherein X is O, N, S, SO, SO.sub.2, P, PO or Si, R is hydrophobic alkyl, alkenyl, acyl, aryl, alkaryl, aralkyl, heterocyclic, or their inert-substituted derivatives, and n is zero or 1 or more and wherein said antibacterial enhancing agent is a natural or synthetic polymerizable monomer or a polymer selected from the group consisting of oligomers, homopolymers, copolymers of two or more monomers, ionomers, block copolymers, graft copolymers and crosslinked polymers and monomers, wherein said delivery-enhancing group enhances delivery of said antibacterial agent to oral dental implant and implant/gum surfaces by attaching or substantially adhesively, cohesively or otherwise bonding said antibacterial enhancing agent to said oral surfaces and said retention-enhancing group enhances attachment, adherence or bonding of said antibacterial agent to said antibacterial enhancing agent and indirectly to said oral surfaces, wherein said oral gel composition is free of polyphosphate anticalculus agent in an effective anticalculus amount,
applying said syringe to a dental implant and
extruding said oral gel composition from said syringe onto the surface of said implant including the interface of said dental implant with gum surfaces.
2. The process claimed in claim 1 wherein said antibacterial agent is a halogenated diphenyl ether.
3. The process claimed in claim 2 wherein said halogenated diphenyl ether is 2,4,4'-trichloro-2'-hydroxydiphenyl ether.
4. The process in claim 1 wherein said amount of antibacterial agent is about 0.01-0.6% by weight.
5. The process claimed in claim 1 wherein said surface active agent is present in amount of about 0.75-2% by weight.
6. The process claimed in claim 1 wherein said flavoring oil is present in amount of about 0.07-2.5% by weight.
7. The process according to claim 1 wherein said antibacterial-enhancing agent has an average molecular weight of about 100 to about 1,000,000.
8. The process claimed in claim 1 wherein said antibacterial-enhancing agent is an anionic polymer containing a plurality of said delivery-enhancing and retention-enhancing groups.
9. The process claimed in claim 8 wherein said anionic polymer comprising a chain containing repeating units each containing at least one carbon atom.
10. The process claimed in claim 9 wherein each unit contains at least one delivery-enhancing group and at least one organic retention-enhancing group bonded to the same or vicinal, or other atoms in the chain.
11. The process claimed in claim 10 wherein the delivery-enhancing group is carboxylic group or salt thereof.
12. The process claimed in claim 11 wherein the antibacterial-enhancing agent is a copolymer of maleic acid or anhydride with another ethylenically unsaturated polymerizable monomer.
13. The process claimed in claim 12 wherein said other monomer of said copolymer is methyl vinyl ether in a 4:1 to 1:4 molar ratio with the maleic acid or anhydride.
14. The process claimed in claim 13 wherein said copolymer has a molecular weight of about 30,000-1,000,000 and is present in amount of about 0.5-2.5% by weight.
15. The process claimed in claim 14 wherein the copolymer has an average molecular weight of about 70,000.
16. The process claimed in claim 14 wherein said oral gel composition comprises about 2-5% by weight a cross-linked carboxyvinyl polymer gelling agent.
17. The process claimed in claim 1 wherein said oral composition contains an effective anticaries amount of a fluoride ion-providing source.
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