U.S. patents available from 1976 to present.
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Use of locally delivered metal ions for treatment of periodontal disease

Patent 6153210 Issued on November 28, 2000. Estimated Expiration Date: Icon_subject August 14, 2017. Estimated 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.

Patent References

Re33093

3337405

3419006

3639575

3739773

3875937

Silver ion gel compositions
Patent #: 4376764
Issued on: 03/15/1983
Inventor: Schmolka

Antimicrobial surgical implants
Patent #: 4476590
Issued on: 10/16/1984
Inventor: Scales ,   et al.

Silver sulfadiazine and/or zinc sulfadiazine-containing toothpaste or oral medicament
Patent #: 4559223
Issued on: 12/17/1985
Inventor: Fox, Jr.

Pharmaceutical preparation for remedy of periodontal disease and process for production thereof
Patent #: 4569837
Issued on: 02/11/1986
Inventor: Suzuki ,   et al.

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Inventors

Assignee

Application

No. 911413 filed on 08/14/1997

US 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 body424/445Dressings

Examiners

Primary: Rose, Shep K.

Attorney, Agent or Firm

Foreign Patent References

  • 282292 CZ. 06/12/1997
  • 0 241 179 EP. 03/12/1987
  • 0508524A1 EP. 03/12/1992
  • 6154030 JP. 06/12/1994
  • 7068109B JP. 06/12/1995
  • 2078559 RU. 05/12/1997
  • 93/24103 WO. 12/12/1993
  • WO 95/29664 WO. 11/12/1995
  • WO 96/09808 WO. 04/12/1996
  • WO 97/16212 WO. 05/12/1997

International Classes

A61K 033/38
A61K 009/70
A61K 031/765
A61L 015/03

Abstract

Periodontal 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

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