Tasteful toothpaste and other dental products

• US 5,496,541 A
• Filed: 01/27/1995
• Issued: 03/05/1996
• Est. Priority Date: 01/19/1993
• Status: Expired due to Term

• Current Assignee: Squigglee LLC
• Original Assignee: Pilot Research & Development Co.
• Inventors: Cutler, Edward T.
• Primary Examiner(s): GRIFFIN, RONALD
• Application Number:
  US08/379,260
• Time in Patent Office: 403 Days
• Field of Search: 424/43, 424/44, 424/48, 424/49, 424/50, 424/53, 424/401, 424/466, 424/489, 424/499, 433/216, 426/3
• US Class Current: 424/49
• CPC Class Codes: A61K 2800/594 Mixtures of polymers
• CPC Class Codes: A61K 8/63 Steroids; Derivatives thereof
• CPC Class Codes: A61K 8/73 Polysaccharides
• CPC Class Codes: A61K 8/731 Cellulose; Quaternized cellulose derivatives
• CPC Class Codes: A61K 8/90 Block copolymers A61K8/89 takes precedence
• CPC Class Codes: A61Q 11/00 Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses

Abstract

Dental products employing a ternary surfactant system of poloxamers, anionic polysaccharides, and nonionic cellulose ethers. This ternary surfactant system has greatly enhanced foaming power relative to poloxamers alone or to poloxamers plus anionic polysaccharides or to poloxamers plus nonionic cellulose ethers. The poloxamer-anionic polysaccharide-nonionic cellulose ether surfactant system has little or no taste, is nonirritating, and has excellent adhesion to tooth surfaces and oral mucosa. Inclusion of a mild abrasive plus one or more of xylitol, raw licorice, licorice extract, and glycyrrhizin and its derivatives enhances the clinical efficacy of the formulations by further reducing plaque buildup thus brightening teeth and reducing tooth decay and periodontal disease.

The surfactant system can be used in a dentifrice paste or gel, powder, granules, disintegrable tablet, and a mouthwash, lozenge, and chewing gum.

Claims

1. Dental products comprising a surfactant system employing poloxamers as the main surfactant, wherein said poloxamer comprises 0.01 to 10 weight % of said dental product, said system further comprising anionic polysaccharides (AP) plus nonionic cellulose ethers (NCE) in a ternary surfactant system having enhanced foaming power relative to poloxamers alone or to poloxamers plus anionic polysaccharide or to poloxamers plus nonionic cellulose ethers, wherein the weight ratio of said poloxamer to said anionic polysaccharides is greater than 1, and the weight ratio of said anionic polysaccharide to said nonionic cellulose ether is greater than 1.

2. A dental product according to claim 1, wherein the poloxamer consists of a block copolymer of ethylene oxide and propylene oxide arranged as (EO)_a (PO)_b (EO)_a wherein the PO content ranges from 15 to 85 mole percent, and the molecular weight ranges from 1,000 to 30,000.

3. A dental product according to claim 1, wherein said anionic polysaccharides are selected from the group consisting of alginic acid, gum arabic, carrageenan, carboxymethycellulose, karaya gum, pectin, gum tragacanth, and xanthan gum.

4. A dental product according to claim 1, wherein the nonionic cellulose ether is selected from the group consisting of alkylated celluloses and hydroxyalkylated celluloses, wherein said hydroxyalkylated cellulose is selected from the group consisting of methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, and hydroxypropylmethylcellulose.

5. A dental product according to claim 1 wherein said dental product is selected from the group consisting of dentifrice powders, granules, disintegrable tablets, dentifrice pastes or gels, dentifrice lozenges, dentifrice chewing gums, and mouthwashes.

6. A dental product according to claim 1 which is essentially free of all surfactants other than those in the ternary surfactant system of poloxamers, anionic polysaccharides, and nonionic cellulose ethers.

7. A dental product according to claim 6 from which are excluded all foam suppressors selected from the group consisting of polyacrylates, sulfonated polyacrylate oligomers, polydimethylsiloxanes, azacycloalkane-2,2-diphosphonic acids, and synthetic anionic polymeric carboxylates.

8. A dental product according to claim 1, further comprising:

a. 5 to 60% by weight of polyol humectants selected from the group consisting of glycerol, xylitol, sorbitol, mannitol, and polyethylene glycol,

b. 0.001 to 5% by weight of sweeteners selected from the group consisting of xylitol, saccharin, aspartame, raw licorice, licorice extract, glycyrrhizin and its derivatives.

9. A dental product according to claim 8 further comprising one or more of the following ingredients:

a. 1 to 60% by weight of a mild abrasive selected from the group consisting of calcium carbonate, dibasic calcium phosphate, tribasic calcium phosphate, calcium pyrophosphate, and hydroxyapatite, having a hardness less than or equal to that of tooth enamel,

b. 1 to 60% by weight of a strong abrasive selected from the group consisting of alumina, silica, titania and fluorapatite having a hardness greater than that of tooth enamel,

c. 0.1 to 10% by weight of flavor,

d. 1 to 2000 ppm by weight of a fluoride containing compound selected from the group consisting of sodium fluoride and sodium monofluorophosphate,

e. 0.1 to 10% by weight of a mono-, di, or polydentate acid or its salts selected from the group consisting of citric acid, ethylenediaminetetraacetic acid, ascorbic acid, and sulfuric acid to adjust and maintain the pH between 6 and 10,

f. 0.1 to 1.0% by weight of preservative selected from the group consisting of paraben, potassium sorbate and calcium propionate, and

g. 0.1 to 1.0% by weight of antioxidant selected from the group consisting of alphatocopherol, beta-carotene, and ascorbic acid,

h. 5 to 95% by weight of water

i. 0.1 to 10% of a thickener selected from the group consisting of colloidal cellulose, hydrated silica, polyethyleneglycol, and polyvinylpyrrolidone.

10. A dental product according to claim 8 in the form of a dentifrice chewing gum further comprising 5 to 60% of gumbase selected from the group consisting of chicle and polybutenes.

11. A dental product according to claim 9 in the form of a dentifrice tablet, further comprising 0.1 to 1.0% by weight of a tablet lubricant selected from the group consisting of calcium stearate, magnesium stearate, hydrogenated vegetable oil, and beeswax.