JP2000044422A - Coating composition for tooth and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a composition for coating teeth, instantly curing in the oral cavity, providing a coating film of small thickness having antimicrobial activity itself. SOLUTION: This coating composition is obtained by dissolving 10-100 pts.wt. of a shellac in 100 pts.wt. of >=50% ethyl alcohol solution to give a solution of shellac in alcohol and dissolving one or two of 0.001-30 pts.wt. of a basic amino acid and 0.001-30 pts.wt. of a pH adjuster in the solution and can provide a surface having lost tack immediately after curing and showing a lubricant sensation.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composition for coating teeth and a method for producing the same, which is applied to teeth to enhance the preventive effect on caries.

[0002]

BACKGROUND OF THE INVENTION Tooth coating compositions have been developed for cosmetic purposes and are currently commercially available. However, the film is thick, the surface of the film is sticky, and it takes time (several tens of seconds or more) to form the film, increases the adhesion of dental caries (plaque), and has a sufficient function of preventing tooth decay. I didn't. In the present invention, the film has low tackiness and a very small thickness, and only takes a few seconds to form the film. Furthermore, the coating itself has an antibacterial action against dental caries (plaque), suppresses adhesion of dental caries (plaque) to teeth, and can be expected to have an effect of preventing dental caries.

[0003]

Accordingly, the present inventors have developed a tooth coating composition which cures instantaneously in the oral cavity, has a thin coating heat, and has an antibacterial effect on the coating itself. In the present invention, the coating has low tackiness and a very small thickness. Furthermore, the coating itself has an antibacterial action against dental caries (plaque) and suppresses adhesion of dental caries (plaque) to teeth. The present invention is applied to a living tooth to form a coating, then chewing, mechanical friction such as brushing and saliva, excellent in peeling resistance to changes in the chemical and physical environment such as temperature difference, and high covering effect. ,
Excellent gloss and no toxicity to human body.

[0004]

Means for Solving the Problems The coating used for conventional teeth is formed by melting shellac in ethanol,
This ethanol-melted shellac is applied to the tooth surface with a brush or the like, and ethanol is evaporated to form a film. Shellac is originally a resin acid, and the solvent ethanol evaporates, and the shellac resin component remains. The film thickness and the drying speed of the film are governed by the amount of ethanol used as the solvent. Increasing the amount of ethanol reduces the thickness of the coating and increases the drying rate. This accompanies the rapid evaporation of ethanol, and this rapid evaporation of ethanol causes a cooling phenomenon of the surroundings, leading to the exposure of moisture around the shellac coating and a whitening phenomenon of shellac. Further, since the site to be used is in the oral cavity, this phenomenon occurs remarkably. When the ratio of the shellac component to the solvent is large, the drying speed of the shellac is low, and the moisture in the oral cavity causes the whitening of the shellac resin. That is, the whitening phenomenon occurs regardless of whether the amount of ethanol as the solvent is small or large. In order to solve this problem, the effect of ambient moisture is eliminated by neutralizing the shellac resin acid and making it water-soluble. On the contrary, when the solution is made completely neutral, the shellac resin becomes soluble in water, so that it cannot be used in the oral cavity. For this reason, by adjusting the pH 4.1 (in the case of a 50% shellac solution) to pH 4.2 or more and less than 7.0 with a shellac solution, a film that suppresses the whitening phenomenon and that does not dissolve even when used in the oral cavity. It was also found that the coating thus formed had a quick drying property and had almost no tackiness (tack). As in the prior art, if the adhesiveness remains even after curing after drying, it causes adhesion of dental caries and could not be used as a dental caries preventive material. In order to solve this problem and use it as an anti-caries material, the present inventor adjusted the pH of shellac resin acid by adding a basic amino acid to ethanol-melted shellac, which is a coating substrate, and after curing. The whitening phenomenon of the shellac resin acid film was not caused, and it was found that the tackiness had disappeared, thereby completing a part of the present invention.

[0005] For this purpose, it has been found at the same time that a pH adjuster and propolis also work effectively.

It is also found that a bactericide and a medicinal ingredient are effectively retained in the cured film having little tackiness thus formed, which is useful for preventing the dental caries and maintaining the function as a therapeutic agent for alveolar pyorrhea. The present invention has been completed.

[0007]

EXAMPLE 1 Dry transparent white lac (shellac) powder was dissolved in 99.5% anhydrous ethanol.
59.5% anhydrous ethanol in 27.0 g of 0% shellac solution (Rackcoat EDS manufactured by Nippon Shellac Co.)
To 0 g, a basic amino acid is added in a necessary amount to reach a target pH of 5.0, and the mixture is diluted and dissolved again. The thus-obtained tooth coating composition is a brownish solution that is rich in fluidity and tackiness, and is dried and hardened in about 3 seconds when it is applied to a living tooth with a brush. The coating formed on the tooth after hardening hardly adheres. (Example 2) 9 pieces of dry transparent white lac (shellac) powder
50% shellac solution dissolved in 9.5% anhydrous ethanol (Nippon Shellac Co., Ltd. Rack Coat EDS) 2
99.5% absolute ethanol to 7.0 g pH to 56.0 g
The necessary amount of the regulator is added to the target pH of 5.0, and the mixture is diluted and dissolved again. When this is applied to the teeth as in Example 1, it is dried and hardened in about 3 seconds. The coating formed on the tooth after hardening hardly adheres.

Example 4 The following materials are blended in the same manner as in Example 1. 50% Shellac solution 27.0 g Absolute ethanol 56.0 g L-Arginine 0.1 g Hinokitiol 2.0 g Lavender oil 7.0 g Addition of hinokitiol improves the antibacterial activity of the coating. The odor of shellac can be suppressed with lavender, and the deep odor during use is not felt.

Example 5 The following materials are blended in the same manner as in Example 1. 50% shellac solution 27.0 g anhydrous ethanol 56.0 g L-arginine 0.1 g benzethonium chloride 20.0 mg mica titanium 2.0 g peppermint 4.0 g By mixing mica titanium, pearlescent luster can be obtained. In addition, by the combination of peppermint,
You can enjoy a refreshing feeling in the mouth.

Example 6 The following materials are blended in the same manner as in Example 1. 50% Shellac solution 27.0 g Absolute ethanol 56.0 g L-arginine 0.1 g Hinokitiol 2.0 g Xylitol 1.0 g Sodium fluoride 0.1 g Addition of xylitol can impart sweetness and inhibition of the growth of carious bacteria to the coating. Addition of sodium fluoride can improve the acid resistance and remineralize the teeth.

[0011]

According to the present invention, a tooth coating composition used by dissolving shellac in alcohol requires several minutes to cure. In addition, tackiness remains immediately after curing, and food residues and caries (plaque) tend to adhere to the cured film of the coating composition, resulting in poor bodily sensation.

SOLUTION: For the purpose of dissolving shellac in an ethyl alcohol solution and reducing or instantaneously eliminating the tackiness of the obtained cured film, 0.001 to 10 parts by weight of a basic amino acid is added to the shellac alcohol solution. By dissolving one or two or more of the pH adjusters from 0.001 to 10 parts by weight, the tackiness immediately after curing can be eliminated, and a surface with a smooth bodily sensation can be obtained.

Claims (8)

[Claims] The present invention relates to a composition for coating teeth based on alcohol-soluble shellac, wherein a basic amino acid of 0.00% is used.
1 to 30 parts by weight (based on 100 parts by weight of a 1-80% alcohol solution of shellac), pH adjuster 0.001 to 3
0 parts by weight (1 to 80% alcohol solution of shellac 10
(With respect to 0 parts by weight), a composition for coating teeth having excellent bodily sensation, which loses the adhesiveness immediately after curing obtained by adding one or two of them. 2. A composition for coating a tooth based on an alcohol-soluble shellac, comprising a basic amino acid (L-lysine hydrochloride, L-lysine L-glutamate, hydroxylysine, L-arginine, L-arginine L). -Glutamate, sodium alginate, potassium alginate,
Addition of 0.001 to 30 parts by weight of propylene glycol alginate (based on 100 parts by weight of a 1-80% alcohol solution of shellac) eliminates the stickiness immediately after curing and is excellent in bodily sensation. Antimicrobial coating composition. 3. A composition for coating a tooth based on an alcohol-soluble shellac, comprising a pH adjuster (calcium hydroxide, sodium hydroxide, sodium hydrogen carbonate, calcium hydrogen phosphate, sodium hydrogen phosphate-hydrogen, 0.002% sodium dihydrogen phosphate, sodium trihydrogen phosphate)
By adding 1 to 30 parts by weight (based on 100 parts by weight of a 1 to 80% alcohol solution of shellac), the tackiness immediately after curing is lost, and the tooth coating composition has excellent bodily sensation. 4. A quaternary ammonium salt (cetylpyridium chloride, benzalkonium chloride, benzethonium chloride, decalinium chloride) as a bactericide in the tooth coating composition according to any one of claims 1 to 3. 0001-0.
1 part by weight, chlorhexidine 0.0001 to 0.1 part by weight, phenol type (triclosan, thymol, isopropylmethylphenol) 0.0001 to 0.1 part by weight,
Alkyl diaminoethyl glycine hydrochloride 0.0001-
A tooth coating composition comprising 0.1 part by weight of one or more kinds. 5. The tooth coating composition according to any one of claims 1 to 3, wherein azulene, azulene sulfonic acid salt, β-glycyrrhizic acid, glycyrrhizic acid, glycyrrhizic acid salt, dihydrocholesterol, epidihydrocholestere Phosphorus, lysozyme chloride, oak extract,
Touki soft extract, hinokitiol, allantoin, allantoinchlorohydroxyaluminum, allantoindihydroxyaluminum, sodium chloride, acetic acid dl
-Α-tocopherol, dl-α-tocopherol nicotinate, epsilon aminocaproic acid, tranexamic acid, catechin, 0.001 to 10 each of propolis
A tooth coating composition comprising one or more parts by weight or other alcohol-soluble medicinal ingredients. 6. The composition for coating teeth according to claim 1, wherein 0.01 to 20 parts by weight of each of sugar alcohols xylitol, sorbitol, mannitol, maltitol, erythritol and palatinit. Or a composition for coating a tooth, comprising one or more of the following. 7. The composition for coating teeth according to any one of claims 1 to 3, further comprising a coupling sugar, which is an oligosaccharide.
A tooth coating composition comprising one or more of palatinose, trehalose, panose oligosaccharide, and isoraltooligosaccharide, each in an amount of 0.01 to 20 parts by weight. 8. The composition for coating a tooth according to any one of claims 1 to 3, wherein the fungicide according to claim 4, the medicinal ingredient according to claim 5, the sugar alcohol according to claim 6, and the effect 7 A composition for tooth antibacterial coating comprising one or more of the oligosaccharides described above is added to a glossing agent such as mica titanium, a facial pigment such as a legal pigment, a fragrance such as peppermint and a small amount of other as required. A tooth coating composition, which comprises adding and mixing a dispersant, a fluoride, and the like.