JPH04149108A - Stabilizer for artificial tooth - Google Patents

Abstract

PURPOSE:To obtain stabilizer for an artificial tooth having improved coloring with water-soluble dyestuff without any problem of unpleasant feeling, unpreferable taste or oral stickiness by mixing dimethylpolysiloxane having a specific viscosity, silicon dioxide, polyhydric alcohol, water, etc., and water-sol uble dyestuff. CONSTITUTION:Dimethylpolysiloxane expressed by the formula (R1 and R2 are CH3 or OH; (n) is average polymerization degree of dimethylsilane group and is usually >=40) having 50-1500X10<4> centipoise viscosity at 25 deg.C in an amount of 40-97wt.% per total amount of the artificial tooth stabilizer is mixed with silicon dioxide and/or a silicic acid salt such as magnesium silicate in an amount of 1-40wt.%, polyhydric alcohol such as polyethylene glycol 400 and/or water in an amount of 0.5-40wt.%, and water-soluble dyestuff such as Red No.3 or Yellow No.4 used in foods, etc., in an amount of <=0.01wt.%, each per total amount, and processed in the same method as the production of an usual viscous paste by using a machine such as Z-type kneader to afford the objective stabilizer for artificial tooth useful for fixing of an artificial tooth.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a paste-like denture stabilizer used for fixing dentures.

BACKGROUND OF THE INVENTION Various denture adhesives have been known to date, and are broadly classified into powder-like and paste-like products. Powdered ones are
Water-soluble natural polymer substances, such as karayakam,
The main component is semi-synthetic polymeric substances, such as sodium calhoki/methylcellulose and sodium polyacrylate. In addition, paste-like products are made by mixing water-soluble polymeric substances with petrolatum, etc.
There are two types: cream paste type) and paste made from vinyl acetate etc. and water alcohol (vinyl acetate paste type). However, these denture adhesives have several problems.

For example, if a powder is used, the powder will scatter during use and end up on areas other than the intended denture. In addition, since it dissolves easily in saliva, the duration of denture fixation is short, and it may be necessary to apply it at least once a day to maintain adhesion to the molecules throughout the day.

Water-soluble polymer cream paste-type products have a longer fixation time than powder-based products, but they still need to be applied at least once a day to maintain adhesion to the molecules throughout the day. Also, the inside of the mouth becomes oily during use, and after use, petroleum jelly remains in the mouth, causing discomfort.

The vinyl acetate paste type has a fixed duration or 1
It lasts for more than a day, is highly compatible with dentures, and sticks to the dentures after use, making it extremely difficult to remove. There is also a pungent, bad taste from the alcohol that migrates from the denture adhesive into your saliva. These bad tastes are indescribable and cannot be overcome as long as the denture adhesive is placed in the mouth not only when eating or drinking but also when not eating or drinking.

Among these problems, a denture stabilizer made of dimethylpolysiloxane has been proposed in order to solve the problem of bad taste during use and peelability from dentures after use (Patent application No. 1-3).
No. 08234 and Japanese Patent Application No. 2-136683).

On the other hand, the color of the denture adhesive is preferably pink, which is difficult to identify by a third party if it protrudes from the denture during use, or pink for the denture adhesive made of the above-mentioned 7-methylpo-1)10-xane. Therefore, oil-soluble dyes or pigments must be added.

However, when oil-soluble pigments are added, there is a problem that the denture adhesive stains the lips or oral mucosa during use, making it difficult to wash off.
During long-term storage, the pigments in the denture adhesive may settle, resulting in uneven color tone.

Therefore, it is desired to color denture stabilizers made of dimethylpolysiloxane with water-soluble dyes, but it is extremely difficult to color denture stabilizers with water-soluble dyes.

Means for Solving the Problems The present invention further improves the problems of the conventional denture adhesive described above, and includes dimethylpolysiloxane having a viscosity of 50 to 15 million centipoise (cps) at 25°C;
The present invention provides a denture stabilizer comprising silicon dioxide and/or silicate, polyhydric alcohol and/or water, and water-soluble pigment.

The dimethylpolysiloxane used has the general formula ゛CH3CH3
: CH3R, -5i-→○-Si, 03iR=CH3i
C1-+3-1n CH3 [wherein, R, and R2
is a methyl group or a hydroxyl group, and n is a 7-isopolymerization number of a dimethylanran group, which is usually 40 or more.
million cps, preferably 100 to 10 million cps
belongs to. If the viscosity at 25°C is less than 50 cps, it will protrude from the denture during use;
If it exceeds 15 million cps, it becomes difficult to apply it to dentures.

Such dimethylpolysiloxanes are known and commercially available. For example, one sold by Toray Tau Corning Co., Ltd. under the trade name "5H200 oil" can be used. Further, in the present invention, in addition to using dimethylpolysiloxane having a predetermined viscosity alone, two or more types of 7-methylpolysiloxane may be used in combination to obtain a predetermined viscosity.

The amount of dimethylpolysiloxane blended is preferably 40 to 97% by weight based on the total amount of the denture stabilizer. If it is less than 40% by weight, it will be difficult to apply it to the dentures, and if it exceeds 97% by weight, it will become water-soluble. Coloring with dyes becomes impossible.

Examples of silicates include magnesium silicate, aluminum silicate, magnesium aluminum silicate, etc.
A single species or a combination of two species can be used. In the present invention, silicate may be used in combination with silicon dioxide,
Also, only silicon dioxide may be used instead of silicate. Such silicon dioxide and/or silicic acid is preferably blended in an amount of 1 to 40% by weight based on the total amount of the denture stabilizer; if it is less than 1% by weight, it becomes difficult to color the denture stabilizer; If the amount exceeds 100%, it becomes difficult to apply it to the dentures.

As the polyhydric alcohol, one or more types such as polyethylene glycol, glycerin, polyglycerin, phlopylene gelicol, and polypropylene gelyl alcohol can be used, and water may be further added to these. Also, a water tank can be used instead of polyhydric alcohol. The polyhydric alcohol and/or water is preferably blended in an amount of 0.5 to 40% by weight based on the total amount of the denture stabilizer. If it is less than 0.5% by weight, it will be difficult to color the denture stabilizer, and if it exceeds 40% by weight, long-term storage stability will deteriorate.

Water-soluble pigments are not particularly limited as long as they are pigments used in foods, etc. For example, red colors include Red No. 3, Red No. 104, and Red No. 106; yellow colors include Yellow No. 4;
Yellow No. 5, Yellow No. 203, blue colors include Blue No. 1, Blue No. 2, etc. To make a pink color, use red and yellow pigments together, and to make a dark pink color. teeth,
Additionally, a blue pigment is used.

The amount of water-soluble dye to be blended is preferably 0.01% by weight or less.

In the present invention, in addition to these ingredients, water-soluble polymer substances, organic powders, flavoring agents, bactericidal agents, anti-inflammatory agents, etc. may be added, and other substances other than dimethylpolysiloxane may also be added. Organopolinoloxanes may also be blended; for example, methylhydrogenborinoloxane, methylphenylborinoloxane, In addition, methylpoly/chloroxane, alkyl-modified silicone, amino-modified silicone, epoxy-modified silicone, carboxyl-modified silicone, chloroalkyl-modified silicone, alkyl higher alcohol ester-modified silicone, alcohol-modified silicone, polyether-modified silicone, fluorine-modified silicone, etc. Silicones can be used alone or in combination of two or more types.

In this case, the viscosity of the dimethylpolysiloxane and the mixed fraction of these organopolysiloxanes is 50 cps or more at 25°C.

The denture adhesive of the present invention can be produced in the same manner as in the production of ordinary viscous pastes using equipment such as a kneader-1 bolter, rollers, mixers, and the like.

For example, first, a water-soluble dye is dispersed and dissolved in polyhydric alcohol or water, mixed with silicon dioxide, and then trimethylpolysiloxane is added and kneaded until uniform. Dimethylpolysiloxane or low viscosity dimethylpolysiloxane (e.g., viscosity of 100 cps at 25°C) and high viscosity dimethylboria (e.g., viscosity of 10 million Cps at 25°C) are used. It is preferable to add and mix, further add high viscosity dimethylpolysiloxane, and knead.

EXAMPLES The present invention will be explained in more detail with reference to Examples below, but the present invention is not limited thereto. 1%" is "% by weight".

Examples 1 to 16 According to the formulation shown in Table 1, each component was uniformly kneaded using a Z-type kneader to produce a denture stabilizer, and its color tone was evaluated.

The results are shown in Table 1.

Measurement of viscosity and evaluation of color tone were carried out by the following method.

0) Viscosity of methylpoly70xane Using a Brookfield IHBT viscometer on a Helibus stand (Hel 1
The viscosity was measured using a TF spindle at a rotation speed of 5 rpm. The measurements were performed in a constant temperature room at 25°C. This system can measure up to 16 million centipoise, and since the measurement accuracy is poor at viscosity below 1% of the full scale (160,000 centipoise), a BL type viscometer manufactured by Tokyo Keiki Co., Ltd. is used.
, 40-ter rotation speed 6 rpm.

(2) Color tone The coloring property of the denture stabilizer was sensory evaluated using the following criteria.

○ Good, Slightly Poor X Poor As shown in Table 1, the denture stabilizer of the present invention has desirable performance.

Effects of the Invention According to the present invention, it is possible to obtain a denture stabilizer which is free from the problems of discomfort, bad taste, and stickiness in the mouth, and which has improved coloration using a water-soluble pigment.

Claims (1)

[Claims] (1) Compounded with dimethylpolysiloxane having a viscosity of 50 to 15 million centipoise at 25°C, silicon dioxide and/or silicate, polyhydric alcohol and/or water, and water-soluble dye. A denture adhesive featuring: