Oral prophalaxis paste

Details Oral prophalaxis paste Oral prophalaxis paste

1998-12-15

2001-08-28

Rose, Shep K. (Department: 1614)

Drug, bio-affecting and body treating compositions

Dentifrices

C514S731000, C514S734000, C514S736000

Reexamination Certificate

active

06280707

ABSTRACT:

BACKGROUND OF THE INVENTION
Oral compositions containing triclosan are known. For example, in U.S. Pat. No. 5,472,685, there is described an oral composition which includes an effective antiplaque proportion of triclosan in an oral composition. That composition is in the form of a tooth paste, gel dentrifrice, tooth powder, mouth rinse, mouth wash, tooth hardener, anticalculus composition, gum or lozenge. Such triclosan-containing compositions are known to exhibit an antibacterial effect in the oral cavity.
It has been found that the dentrifrice compositions heretofore known in the art are not useful as oral prophylaxis pastes (also referred to as “prophy” pastes). A main drawback has been that the prior dentrifrices contain low abrasive materials. This is because such dentrifrices are intended to be used on a daily basis. Therefore, prior to the present invention, there has not been a prophylaxis paste which exhibits antimicrobial properties and which is abrasive enough to be employed by the dental practitioner as a prophalaxis paste.
Therefore, a need exhibits for a prophy paste with acceptable abrasive qualities as well as antimicrobial qualities. The present invention, as will be discussed below meets this need.
DISCLOSURE OF THE INVENTION
It is therefore, an object of the invention to provide an oral prophylaxis paste.
It is another object of the invention to provide a prophylaxis paste with useful abrasive qualities.
It is a further object of the invention to provide such a prophylaxis paste which also exhibits antimicrobial properties.
These and other objects of the invention which will become apparent from the description to follow are accomplished by the invention as hereinafter described and claimed.
In general, a prophylaxis paste comprises a preselected amount and grade of pumice, clay, glycerin and an amount of triclosan.
PREFERRED EMBODIMENTS FOR CARRYING OUT THE INVENTION
The dental prophalaxis paste composition according to the invention is based upon a moistened pumice baseor clay base, normally containing an amount of pumice or clay, water and preferably a moisture retention agent in the form of glycerin.
The novel paste has a pumice base or clay base moistened to a pasty state. The exact amount of moisture added may be varied within reasonable limits because changing the moisture content in small amounts, although altering the paste consistency does not materially alter the characteristics which depend on the addition of further components. It has been found that the moisture retention agent may also be varied within reasonable amounts because its presence within a limited range does not significantly alter the desired flowing and non-splattering characteristics desired in the paste.
It is preferred to add glycerin and water to the pumice base in a weight amount ratio of about 16:8:4 of pumice or clay, glycerin and water. However, as indicated, the glycerin may readily range from about 6-9 parts to 16 parts of pumice, while the water can vary between about 4 to 6 parts per 16 parts of base without significantly altering the characteristics of the paste.
It will be readily understood that various substitutes for the preferred glycerin as the moisture retention agent could conceivably be made. Glycerin has been found to work effectively without detracting from the desired final qualities of the paste.
It is envisioned that a prophalaxis paste according to the present invention will be prepared as a fine, medium or coarse grit compound. These designations are relative, and are not necessarily intended to convey exact grades or grit levels. However, preferred explary compositions will be discussed below. The pumice or clay grade used in each of the different grit pastes is based upon the average particle size of the respective pumice. The table given below provides a grade designation and the average particle size in mesh, inches and microns.
PUMICE CLASSIFICATIONS
PUMICE GRADE
MESH SPEC
INCH, MM
UM
4F
170 100% T
.0035, .090
90
200 99% T
.0029, .075
75
325 85% T
.0017, .045
45
3F
170 <1% R
.0035, .090
90
200 <8% R
.0029, .075
75
2F
140 <2% R
.0041, .106
106 
170 <9% R
.0035, .090
90
200 80-99% T
.0029, .075
75
1F
100 <1% R
.0059, .150
150 
120 <7% R
.0049, .125
125 
200 60-90% T
.0029, .075
75
0
 80 <2% R
.0070, .180
180 
100 <10% R
.0059, .150
150 
200 40-80% T
.0029, .075
75
NOTE 1: T = Passes through the sieve, R = Remains on sieve
A fine grit prophalaxis paste according to the invention will include about 40-50 percent by weight of pumice grade 4F. A medium grit paste will include from about 10-15% of pumice grade 3F and 35-40% of grade 2F. A coarse grit composition will contain for example, 35-40% by weight of pumice grade 2F and 10-15% of pumice grade 0. It is envisioned that other composition containing different grit levels are within the scope of the present invention. For example, a more coarse composition might include 35-40% of pumice grade 1F and 10-15% by weight of pumice grade 0. Again, other amounts of pumice or combinations of pumice may fall within a given designation, without varying from the scope of the present invention. Again, the designations fine, medium and coarse are relative and subjective.
With this understanding, fine, medium and coarse grit level compositions according to the invention may contain the following components.
TABLE 1
Grit Levels
Ingredient Name
(% w/w) Fine
Medium
Coarse
Purified Water
QS
QS
QS
Pumice 2F
—
36.60
37.57
Pumice 3F
—
12.60
—
Pumice 4F
45.20
—
—
Pumice O
—
—
12.94
Dacalite
4.00
—
—
Glycerin
29.80
30.77
30.06
Polyethylene Glycol 400
1.00
1.00
1.00
Triclosan
0.3-1.0
0.3-1.0
0.3-1.0
Sodium Fluoride
2.70
2.70
2.70
Sodium Silicate
2.86
2.86
2.63
Monosodium Phosphate
0.15
0.15
0.16
Methyl Salicylate
0.85
0.85
0.81
Sodium Saccharin
0.04
0.04
0.04
Sodium Carboxymethylcellulose
0.05
0.05
0.05
Colorant Solution
0.15
0.15
0.10
Flavor
0.82
0.83
0.81
TOTAL, %
100.00
100.00
100.00
Alternative compositions within the scope of the invention are provided in Table 2.
TABLE 2
Ingredient Name
(% w/w) Fine
Medium
Coarse
Purified Water
13.237
11.222
10.948
Pumice
45.20
49.21
50.51
Glycerin
28.70
30.77
30.00
Distomacsous Earth
4.00
—
—
Sodium Fluoride
2.78
2.70
2.73
Sodium Silicate
2.86
2.86
2.63
Polyethylene Glycol 400
1.00
1.00
1.00
Methyl Sallcylate
0.85
0.85
0.81
Flavorant
0.82
0.83
0.81
Triclosan
0.82
0.83
0.81
Sodium Phosphate Monobasic
0.15
0.15
0.16
Monosodium Phosphate
0.15
0.15
0.16
Sodium Saccharin
0.04
0.04
0.04
Sodium Carboxymethyl Cellulose
0.05
0.05
0.05
FD&C Blue #1
—
0.009
—
FD&C Blue #2
—
0.009
—
FD&C Blue #6
0.013
—
—
FD&C Blue #40
—
—
0.012
TOTAL, %
100.00
100.00
100.00
To the pumice paste, containing pumice, glycerin and water, as discussed above, is added the sodium silicate, methyl salicylate and sodium carboxymethycellulose. The sodium silicate and methyl salicylate together form the curing system of the composition in the ratios of sodium silicate (3-4 parts) to methyl salicylate (0.25-1.25 parts). The sodium carboxymethylcellulose acts as a gum. Other materials may be included as a gum such as agar agar or the like. It has been found that these materials, when employed in the paste, act synergistically to create unique flow characteristics in the paste. By blending an amount of a gum system, such as sodium carboxymethylcellulose, and a small amount of the curing system, that is up to about 2% by weight of the gum system and up to about 10% by weight of the cure system, the material will flow smoothly under pressure, without segregation or settling of the pumice.
Dacalite is also a useful grit material, as is diatomaceous earth. The polyethylene glycol is also a moisture retaining agent; sodium fluoride is known to be used as an anticarries agent; monosodium phosphate is a buffer; and sodium saccharin is added as a sweetener. Colorant solutions and flavoring agents are optional as are the sweetener and the sodium fluoride.


REFERENCES:
patent: 3228845 (1966-01-01), Najjar
patent: 4144322 (1979-03-01), Cordon
patent: 42

Affiliated with

Also associated with

Rating

Oral prophalaxis paste does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Oral prophalaxis paste, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Oral prophalaxis paste will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2526401