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US4060600A Expired / Lapsed US ⏱️ 0.0 years remaining

Treating teeth

Assignee: National Patent Development Corp
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Filing: 1972-10-26
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Granted: 1977-11-29
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Expires: 1992-10-26
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Abstract

Abstract A method of treating teeth in dentistry, for the prevention of calculus, removal of caries, and dissolving of plaque, comprises bringing into contact with the teeth an aqueous solution containing a hypochlorite of an alkali and/or alkaline earth metal, and an amino compound capable of forming water-soluble non-mucous irritating N-chloro and/or N-dichloro derivatives thereof. The amine may be tertiary, or rearranged to result in a secondary or primary amine. Preferably an excess of amine to hypochlorite is used, to faciliate demineralization of old plaque and caries. For maintenance of the desired pH, a buffering system may be included. The solution may be used as a mouth wash, or in the form of a jet stream or a pulsated jet stream through an applicator such as a hypodermic needle, or with a carrier in the form of a paste for application with a brush.

Inventors

  • 👤 Jaroslav Vit

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 11:09
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/44; A61K8/19; A61K8/20; A61Q; A61Q11/00

Claims Analysis

Total Claims: 11
Claim 1
Independent Claim 79 words
A method of treating teeth in dentistry, for the purpose of prevention of calculus, removal of caries or dissolving plaque which comprises bringing into contact with the teeth an amount of an aqueous solution effective for such purpose containing the reaction product resulting from mixing a solution of (1) a hypochlorite selected from the group consisting of the hypochlorites of Li, Na, K, Rb, Cs, Ca, Sr and Ba and a solution of (2) ethylene diamine tetra acetic acid.
Claim 2
Independent Claim 79 words
A method of treating teeth in dentistry, for the purpose of prevention of calculus, removal of caries or dissolving plaque which comprises bringing into contact with the teeth an amount of an aqueous solution effective for such purpose containing the reaction product resulting from mixing a solution of (1) a hypochlorite selected from the group consisting of the hypochlorites of Li, Na, K, Rb, Cs, Ca, Sr and Ba and a solution of (2) ethylene diamine tetra acetic acid.
Claim 3
Dependent Claim 19 words
The method claimed in claim 1, wherein the solution is applied to the oral cavity as a mouth wash.
Claim 4
Dependent Claim 18 words
The method claimed in claim 1, wherein the solution is applied to a tooth as a jet stream.
Claim 5
Dependent Claim 19 words
The method claimed in claim 1 wherein the solution is applied to a tooth as a pulsated jet stream.
Claim 6
Dependent Claim 22 words
The method claimed in claim 1 wherein the solution is in a paste and is applied to the teeth with a brush.
Claim 7
Dependent Claim 12 words
A method according to claim 1 wherein the hypochlorite is sodium hypochlorite.
Claim 8
Dependent Claim 19 words
A method according to claim 1 wherein the composition has a pH in the range of 8 to 12.
Claim 9
Dependent Claim 20 words
A method according to claim 7 wherein the solution comprises a non-toxic buffer to maintain the pH within said range.
Claim 10
Dependent Claim 13 words
A method according to claim 8 wherein the pH is 10.5 to 11.5.
Claim 11
Dependent Claim 32 words
A method according to claim 9 wherein the composition is made from equal amounts of a 0.5% solution of sodium hypochlorite and a 0.5% molar solution of ethylene diamine tetra acetic acid.

References Cited (Backward Citations)

US1435498A Cited
US3590121A Cited
DE1943971A1 Cited
US4012842A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1980-11-28 1981-05-30 1981-11-29 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1984-11-28 1985-05-30 1985-11-29 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1988-11-28 1989-05-30 1989-11-29 $7700.00 Window Closed / Lapsed

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