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US Patent 6153210 - Use of locally delivered metal ions for treatment of periodontal disease
US Patent Issued on November 28, 2000
Estimated Patent Expiration Date:
August 14, 2017Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
Estimated Patent Expiration Date:
August 14, 2017Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.AbstractPeriodontal disease can be treated by the administration of metal ions, preferably silver ions, to the site where the microorganisms that cause this disease reside. Administration can be to periodontal pockets or adjacent to exposed tooth roots or alveolar bone during periodontal surgical procedures. The metal ions can be administered in polymeric microparticles, deformable films or microparticles embedded within deformable films. The metal ions are particularly microbiocidal to the bacterial pathogens that are the causative agents of periodontal disease.Other References
| InventorsAssigneeApplicationNo. 911413 filed on 08/14/1997US Classes:424/411, Impregnated or coated nominal articles (e.g., flea collars, etc.)424/422, Implant or insert424/424, Membrane or diffusion barrier424/425, Diffusion barrier is matrix424/426, Errodable, resorbable, or dissolving424/435, Mouth424/444, Resorbable by the body424/445DressingsField of Search424/411, Impregnated or coated nominal articles (e.g., flea collars, etc.)424/422, Implant or insert424/424, Membrane or diffusion barrier424/425, Diffusion barrier is matrix424/426, Errodable, resorbable, or dissolving424/435, Mouth424/444, Resorbable by the body424/445DressingsExaminersPrimary: Rose, Shep K.Attorney, Agent or FirmUS Patent ReferencesRe33093, 3337405, 3419006, 3639575, 3739773, 3875937, 4376764, Silver ion gel compositionsIssued on: 03/15/1983 Inventor: Schmolka4476590, Antimicrobial surgical implants Issued on: 10/16/1984 Inventor: Scales , et al.4559223, Silver sulfadiazine and/or zinc 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Foreign Patent References
International ClassesA61K 033/38A61K 009/70 A61K 031/765 A61L 015/03 |
