US4738840A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Presurgical sterilization method
Assignee: Olin Corp
•
Filing: 1986-08-29
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Granted: 1988-04-19
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Expires: 2006-08-29
Abstract
Abstract Pre- and post-operative dental and surgical procedures in and on structures and areas of the oral cavity are maintained sterile by the application thereto of an antimicrobially enhanced aqueous solution of an iodophor constituting a source of iodine and a peroxide as a source of oxygen, the aqueous solution ensuring sterility of the structures and areas in the oral cavity before, during and after the operating procedures therein and retarding or inhibiting microbial regrowth on and in the structures and areas in a dental or surgical environment. The iodophor is preferably a povidone iodine complex soluble in water and the peroxide is preferably hydrogen peroxide, the oxygen from the peroxide acting to enhance the antimicrobial activity of the iodine derived from the povidone iodine complex.
Inventors
- 👤 Gilbert I. Simon
- 👤 Roy T. Witkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:03
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/18; A01; A01N; A01N59/00; A01N59/12; A61K; A61K6/00; A61K6/50
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
108 words
A method of chemically sterilizing artificial structures inserted, constructed, implanted or existing in the human oral cavity and areas thereof exclusive of periodontal procedures, which comprises contacting said structures and areas for a period of time up to about one to two minutes per application on or into all or pre-selected portions or surfaces of said structures and areas with an aqueous antimicrobially enhanced solution of an iodophor and a peroxide which provides oxygen to enhance the antimicrobial activity of the iodine derived from the iodophor in the solution with at least some of the antimicrobially enhanced solution remaining in contact with such oral cavity structures and areas.
Claim 2
Independent Claim
108 words
A method of chemically sterilizing artificial structures inserted, constructed, implanted or existing in the human oral cavity and areas thereof exclusive of periodontal procedures, which comprises contacting said structures and areas for a period of time up to about one to two minutes per application on or into all or pre-selected portions or surfaces of said structures and areas with an aqueous antimicrobially enhanced solution of an iodophor and a peroxide which provides oxygen to enhance the antimicrobial activity of the iodine derived from the iodophor in the solution with at least some of the antimicrobially enhanced solution remaining in contact with such oral cavity structures and areas.
Claim 3
Dependent Claim
15 words
A method according to claim 1 in which the articial structures are prosthetic or orthodontic.
Claim 4
Dependent Claim
54 words
A method according to claim 1 wherein the areas are decayed surfaces of teeth which have had the decay removed by drilling and thereafter filling the resulting cavity, the drilling and cavity filling being carried out while the enhanced antimicrobial solution is in flushing contact therewith to ensure sterilization and to retard future decay.
Claim 5
Dependent Claim
34 words
A method according to claim 1 wherein the areas are formed by dental root canal removal of decayed or infected matter while sterilizing with enhanced antimicrobial solution and filling the cleaned and sterilized canals.
Claim 6
Dependent Claim
55 words
A method according to claim 1 wherein the areas are natural teeth having scale which is removed by a suitable dental instrument vibrating at ultra high speed and small amplitude while applying said antimicrobially enhanced solution to the area of the teeth which has has the scale removed so as to effect debriding and sterilizing,
Claim 7
Dependent Claim
21 words
A method according to claim 1 in which the iodophor is povidone and the peroxide is H 2 O 2 .
Claim 8
Dependent Claim
43 words
A method according to claim 6 in which separate aqueous solutions of povidone iodine and H 2 O 2 are prepared and maintained out of contact with one another and then mixed and applied to the surfaces of the structures and areas thereof.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-04-19 | 1991-10-19 | 1992-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-04-19 | 1995-10-19 | 1996-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-04-19 | 1999-10-19 | 2000-04-19 | $7700.00 | Window Closed / Lapsed |