US5087444A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-fluoride desensitizing mouthwash
Assignee: Beecham Group PLC
•
Filing: 1990-03-27
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Granted: 1992-02-11
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Expires: 2010-03-27
Abstract
Abstract An oral hygiene composition for use in the treatment of dentine hypersensitivity comprises a water soluble strontium salt and a water soluble potassium salt, together with a dentally acceptable excipient. Preferably, the composition is in the form of a dentifrice comprising an abrasive silica and a thickening silica, and optionally includes an ionic fluorine-containing compound.
Inventors
- 👤 Robert J. Jackson
- 👤 Susan A. Duke
- 👤 Mark A. Wicks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:18
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/19; A61Q; A61Q11/00
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
37 words
A non-fluoride desensitizing mouthwash, comprising: (i) from 0.1 to 15% of a water soluble, non-toxic, desensitizing strontium salt; (ii) from 0.1 to 15% of a water soluble, non-toxic, desensitizing potassium salt; and (iii) a dentally acceptable excipient.
Claim 2
Dependent Claim
37 words
A non-fluoride desensitizing mouthwash, comprising: (i) from 0.1 to 15% of a water soluble, non-toxic, desensitizing strontium salt; (ii) from 0.1 to 15% of a water soluble, non-toxic, desensitizing potassium salt; and (iii) a dentally acceptable excipient.
Claim 3
Dependent Claim
14 words
A non-fluoride mouthwash according to claim 1 wherein the strontium salt is strontium acetate.
Claim 4
Dependent Claim
17 words
A non-fluoride mouthwash according to claim 1 wherein the potassium salt is potassium acetate or potassium chloride.
Claim 5
Dependent Claim
19 words
A non-fluoride mouthwash according to claim 1 comprising a surfactant which is a non-ionic or a low ionic material.
Claim 6
Dependent Claim
28 words
A method of treating dentine hypersensitivity which method comprises the application of an effective amount of a non-fluoride mouthwash as defined in claim 1 to the oral cavity.
Claim 7
Dependent Claim
32 words
A non-fluoride mouthwash according to claim 1, wherein the ratio of said potassium salt to said strontium salt is in the range from 10:1 to 1:10, by weight of the respective ions.
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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) | 1995-02-10 | 1995-08-12 | 1996-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-02-10 | 1999-08-12 | 2000-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-02-10 | 2003-08-12 | 2004-02-11 | $7700.00 | Window Closed / Lapsed |