JPH0565210A - Denture stabilizer - Google Patents

Abstract

PURPOSE:To provide the title stabilizer good in adherability along with releasability from denture base. CONSTITUTION:The objective denture stabilizer can be obtained by formulating (A) polyvinyl acetate as the base material blended with (B) at least one kind of water-soluble polymer selected from hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, polyvinylpyrrolidone, polyvinylmethyl ether, carboxyvinyl polymers, methoxyethylene-maleic anhydride copolymer and its derivatives, polyethylene oxide, carboxymethylcellulose sodium salt, sodium polyacrylic acid, propylene glycol alginate, polyethylene glycol and pectin.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a denture stabilizer.
More specifically, the present invention relates to a denture stabilizer having adhesiveness and excellent peelability from the denture base.

[0002]

2. Description of the Related Art Generally, the compatibility of full dentures and partial dentures decreases with the passage of time from the time of adjustment or due to physiological changes in the oral cavity. As a result, the gap between the denture and the alveolar ridge becomes large, causing problems such as rattling and reduced masticatory ability. In order to improve such inconvenience, it is basically necessary for an expert such as a dentist to perform an operation such as floor renewal, but it requires a great deal of cost and time. Therefore, the patient cannot easily improve the defect of the denture, and often suffers from pain for a considerably long time. A denture stabilizer has been proposed as a means for easily remedying such problems of the denture.

Conventionally, as this type of denture stabilizer, there are known an adhesive type having a water-soluble polymer as a base material and an adhesive type having a polyvinyl acetate as a base material. Of these, the adhesive-type denture stabilizer is excellent in stability of the denture, but is inferior in peelability from the denture base after use, and thus it is difficult to replace it with a new one after use. In order to solve this problem, a denture stabilizer containing a polypropylene oxide polymer has been proposed (JP-A-62-265209), but its releasability is still insufficient.

[0004]

SUMMARY OF THE INVENTION The present invention, unlike conventional denture stabilizers, has adhesiveness and, after use,
The purpose of the present invention is to provide a denture stabilizer that is easy to peel from the denture base. By combining polyvinyl acetate and a specific water-soluble polymer, the present inventors have good adhesiveness and peel from the denture base. It is based on the finding that a denture stabilizer having excellent properties can be obtained.

[0005]

DISCLOSURE OF THE INVENTION The present invention is based on polyvinyl acetate and comprises hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose,
Hydroxypropyl methylcellulose, methylcellulose, polyvinylpyrrolidone, polyvinylmethyl ether, carboxyvinyl polymer, methoxyethylene maleic anhydride copolymer and its derivatives, polyethylene oxide, sodium carboxymethylcellulose, sodium polyacrylate, propylene glycol alginate, polyethylene with a molecular weight of 1000 or more. It is intended to provide a denture stabilizer, which comprises one or more water-soluble polymers selected from the group consisting of glycol and pectin.

The water-soluble polymer used in the present invention is hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, methyl cellulose, polyvinylpyrrolidone, polyvinyl methyl ether, carboxyvinyl polymer, methoxyethylene maleic anhydride copolymer and the like. Derivative, polyethylene oxide, sodium carboxymethyl cellulose, sodium polyacrylate, propylene glycol alginate, molecular weight 100
It is selected from the group consisting of 0 or more polyethylene glycol and pectin, and is 0.5 to 30% by weight based on the total weight of the denture stabilizer (hereinafter, all% are% by weight unless otherwise specified), preferably Used at a rate of 1-5%.

If the content of the water-soluble polymer is less than 0.5%, the releasability from the denture base is insufficient, and if it exceeds 30%, a sticky feeling and uncomfortable feeling occur during use. ..

If necessary, the denture stabilizer of the present invention may appropriately contain other components such as non-toxic oils / waxes, emulsifiers, water-insoluble powders, wetting agents, water, ethanol and pigments. You can Examples of non-toxic oils and waxes include beeswax, wood wax, candelilla wax, microcrystalline wax, paraffin wax, carnauba wax and the like. Examples of the emulsifier include stearic acid monoglyceride, oleic acid monoglyceride, acetylated glyceryl fatty acid esters such as acetylated glyceryl monostearate, and sorbitan monostearate. As the water-insoluble powder, calcium carbonate,
Calcium hydrogen phosphate, silica, hydroxyapatite, plastic powder, cellulose powder and the like are used. As a wetting agent, polyethylene glycol,
Propylene glycol, glycerin, sorbit, etc. are used.

The denture stabilizer of the present invention comprises mixing desired components,
It can be prepared by a conventional method such as dissolution, and the obtained denture stabilizer can be used in the same manner as conventional ones.

[0010]

EXAMPLES Next, the present invention will be described in more detail with reference to Examples and Comparative Examples. Examples 1 to 23 and Comparative Examples 1 to 2 Components shown in "Table 1" and "Table 2" were mixed and dissolved according to a conventional method to prepare a denture stabilizer, and the following items were evaluated.

(1) Peelability A denture stabilizer of an appropriate amount was adhered to the upper denture made of methacrylic resin by a conventional method, and the denture stabilizer was immersed in water at 37 ° C. for 24 hours. Then, remove the denture stabilizer from the denture with just your fingertips,
The ease of peeling was sensory evaluated according to the following criteria. ◎: Easy ○: Fairly easy △: Fairly difficult
×: difficult

(2) Extrudability A denture stabilizer is filled in an aluminum tube and
g The ease of extrusion when squeezing out was sensory evaluated according to the following criteria. ◎: Easy ○: Fairly easy △: Fairly difficult
×: difficult

(3) Adhesiveness An appropriate amount of a denture stabilizer is attached to the maxillary denture made of methacrylic resin according to a conventional method, and the denture stabilizer is mounted in the oral cavity. The adhesiveness of the complete denture after 8 hours was sensory evaluated according to the following criteria. ◎: Good ○: Fairly good △: Fairly bad
×: defective

(4) Comprehensive Evaluation Based on the evaluation results of (1) to (3), the evaluation was comprehensively evaluated in three stages according to the following criteria. A: Δ is 1 or less and x is 0 B: Δ is 2 and x is 0 C: Δ is 3 or x is 1 or more

[0015]

[Table 1]

[0016]

[Table 2]

[0017]

The denture stabilizer of the present invention has excellent adhesiveness and is easily peeled off from the denture base, so that the denture stabilizer can be easily replaced, and the conventional problems are improved.

Claims (1)

[Claims] 1. Polyvinyl acetate as a base material, hydroxyethyl cellulose, hydroxymethyl cellulose, hydroxypropyl cellulose, hydroxypropylmethyl cellulose, methyl cellulose, polyvinylpyrrolidone, polyvinyl methyl ether, carboxyvinyl polymer, methoxyethylene maleic anhydride copolymer and the same. Derivative, polyethylene oxide, sodium carboxymethyl cellulose, sodium polyacrylate,
A denture stabilizer, which comprises one or more water-soluble polymers selected from the group consisting of propylene glycol alginate, polyethylene glycol having a molecular weight of 1000 or more, and pectin.