# US 5,702,686 A · Clear dentrifice gel for interdental brushes

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- Number: US 5,702,686 A
- Document ID: US5702686A
- Status: Granted
- Kind: A
- Application number: 08/503,716
- Filed: 1995-07-18
- Granted: 1997-12-30
- Earliest claimed: 1995-07-18
- Assignees: John O. Butler Company
- Inventors: Kiyoshi Maekawa; Christina M. Calhoon
- Web page: https://patentgrep.com/patent/US5702686A

## CPC

- A61K 8/042: {Gels}
- A61K 8/25: Silicon; Compounds thereof
- A61K 8/345: {containing more than one hydroxy group}
- A61Q 11/00: Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)
- A61Q: SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS

## Abstract

A clear, mildly abrasive, low-viscosity dentrifice gel for use with twisted wire interdental brushes which comprises optimal humectant, silica abrasive and water concentration levels.

## Claims

### Claim 1

A clear, mildly abrasive, low-viscosity dentrifice gel which can be safely swallowed for use with a twisted wire interdental brush comprising:
a) from about 70% to about 85% of a humectant;
b) from about 5% to about 15% of a silica dental abrasive having an average particle size of less than about 10 microns;
c) from about 5% to about 15% of water; and
d) from about 0.2% to about 5.0% of an emulsifier.

### Claim 2 (depends on 1)

The dentrifice gel of claim 1 wherein the amount of humectant is from about 80% to about 85%.

### Claim 3 (depends on 1)

The dentrifice gel of claim 1 wherein the amount of silica dental abrasive is from about 5% to about 10%.

### Claim 4 (depends on 1)

The dentrifice gel of claim 1 wherein the amount of water is from about 5% to about 10%.

### Claim 5 (depends on 1)

The dentrifice gel of claim 1 further comprising:
a) from about 0.02% to about 0.5% of a source of fluoride ions;
b) from about 0.05% to about 0.25% of a buffering agent; and
c) from about 0.1% to about 2.0% of a binder.

### Claim 6 (depends on 5)

The dentrifice gel of claim 5 further comprising from about 0.1% to about 3.0% of a flavoring agent.

### Claim 7 (depends on 5)

The dentrifice gel of claim 5 further comprising from about 0.01% to about 0.5% of a preservative.

### Claim 8 (depends on 5)

The dentrifice gel of claim 5 further comprising from about 0.1% to about 15% of a sweetener.

### Claim 9 (depends on 5)

The dentrifice gel of claim 5 further comprising from about 0.0005% to about 0.01% of a coloring agent.

### Claim 10 (depends on 5)

The dentrifice gel of claim 5 further comprising from about 4.5% to about 5.5% of an ingredient to desensitize teeth.

### Claim 11 (depends on 1)

The dentrifice gel of claim 1 wherein the humectant is a mixture of sorbitol and glycerine.

### Claim 12 (depends on 11)

The dentrifice gel of claim 11 wherein the ingredient to desensitize teeth is potassium nitrate.

### Claim 13 (depends on 1)

The dentrifice gel of claim 1 wherein the pH is in the range of about 6.5 to about 7.5.

### Claim 14 (depends on 1)

The dentrifice gel of claim 1 wherein the viscosity is not more than 30,000 centipoises to allow the gel to sink into the interdental brush bristles.

### Claim 15

A clear, mildly abrasive, low-viscosity dentrifice gel which can be safely swallowed for use with a twisted wire interdental brush comprising:
a) from about 70% to about 85% of a humectant;
b) from about 5% to about 15% of a silica dental abrasive having an average particle size of less than about 10 microns;
c) from about 5% to about 15% of water;
d) from about 0.2% to about 5.0% of an emulsifier; and
e) from about 0.05% to about 0.25% of a buffering agent to maintain the pH of the dentrifice gel in the range of about 6.5 to 7.5, said dentrifice gel having a low viscosity of less than 30,000 centipoises to allow the gel to sink into the interdental brush bristles.

### Claim 16 (depends on 15)

The dentifrice gel of claim 15 further comprising:
a) from about 0.02% to about 0.5% of a source of fluoride ions;
b) from about 0.1% to about 2.0% of a binder;
c) from about 0.1% to about 3.0% of a flavoring agent;
d) from about 0.01% to about 0.5% of a preservative;
e) from about 0.1% to about 15% of a sweetener;
f) from about 0.0005% to about 0.01% of a coloring agent; and
g) from about 4.5% to about 5.5% of an ingredient to desensitize teeth.

### Claim 17 (depends on 15)

The dentrifice gel of claim 15 wherein the humectant is a mixture of sorbitol and glycerine.

### Claim 18 (depends on 16)

The dentrifice gel of claim 16 wherein the ingredient to desensitize teeth is potassium nitrate.