KR100194291B1 - Toothpaste composition - Google Patents

Abstract

The present invention relates to a toothpaste composition exhibiting a tooth whitening effect and a periodontal disease inhibiting effect, for the purpose of the tooth whitening effect, calcium peroxide (CaO ₂ ) and peroxide disease inhibiting effect as a peroxide that is easily decomposed by moisture, etc. Sodium hydrogen carbonate is included as an essential component for the purpose, and in these compositions, active oxygen is released by decomposition of peroxides by metal ions such as sodium ions released by moisture and other components in the composition during storage, and for a long time. In order to solve the problem that storage is difficult and cannot provide the desired effect sufficiently,? -Alumina trihydrate which does not release metal ions as an abrasive is used as a stabilizer and fumed silica and polyoxyethylene- Toothpaste characterized in that the mixture contains a polyoxypropylene copolymer as an essential component It relates to a composition.

The toothpaste composition according to the present invention does not release free radicals during storage, it is excellent in long-term preservation and can provide a continuous tooth whitening effect and periodontal disease suppression effect.

Description

Toothpaste composition

The present invention relates to a toothpaste composition exhibiting a tooth whitening effect and a periodontal disease inhibiting effect, and more specifically, calcium peroxide (CaO ₂ ) as a peroxide that is easily decomposed by moisture and the like to release active oxygen for the purpose of tooth whitening, Toothpaste characterized in that it contains sodium hydrogencarbonate, α-alumina trihydrate which does not release metal ions as an abrasive, and a fumed silica and a polyoxyethylene-polyoxypropylene copolymer as a stabilizer for the purpose of inhibiting periodontal disease. It relates to a composition.

In the toothpaste composition for the purpose of tooth whitening effect, peroxide which is easily decomposed by moisture or the like to release active oxygen has been used for the tooth whitening effect, and examples thereof include hydrogen peroxide, sodium percarbonate or calcium peroxide. Can be. These peroxides are known to have low molecular weight, denature proteins, increase ionic migration of ions, and oxidize reducing substances that cause pigmentation. More specifically, these peroxides are decomposed by moisture in the composition to release free radicals, and the bleaching power of these free radicals decolorizes tooth contamination caused by coffee or cigarettes stained on the teeth. In addition, they exhibit an antiseptic action against anaerobic bacteria that cause periodontal disease and neutralize acid components released from the plaque, thereby relieving periodontal disease, thereby obtaining a side effect of keeping gums healthy.

Meanwhile, Legier et al. Recently reported that sodium bicarbonate, which has been used as a pH buffer in toothpaste compositions, exhibits anti-caries activity by reducing the number of mutans streptococcus and lactobacillus in saliva (1995). Yankell et al. Also reported that toothpaste compositions containing sodium bicarbonate inhibited the formation of bacterial plaques and had a gingivitis relieving effect (1993).

However, in the toothpaste composition containing peroxide for the purpose of whitening teeth and sodium hydrogencarbonate for the purpose of preventing periodontal disease, the decomposition of the peroxide by water is promoted by sodium ions of sodium bicarbonate and is active during storage. Oxygen is generated, it is difficult to store for a long time, such as the toothpaste tube is expanded or burst by the generated gas.

Thus, in order to stabilize peroxides as a source of active oxygen, U.S. Patent No. 5,085,853 is a special toothpaste that is separately filled in a double type chamber with a gel containing hydrogen peroxide and a toothpaste formulation containing sodium hydrogen carbonate to be discharged from the outlet when used. The vessel is described, which is intended to separate and store the active oxygen source from the metal ions that cause the activation of the active oxygen source. In this case, however, there is a disadvantage in that the submaterial cost required for the container is excessive and the volume of the container is inconvenient to use and double filling is required during manufacture.

In addition, U.S. Patent No. 4,891,211 suggests the use of sodium bicarbonate and sodium percarbonate in polyethylene glycol base as a prescription for ROS release toothpaste, and contains a large amount of sodium bicarbonate without using an abrasive commonly used in toothpaste. I'm making it. However, sodium bicarbonate has a very low abrasive force and cannot effectively remove food residues, plaque and gingival contaminants in teeth, and the salty taste of sodium bicarbonate contained in the toothpaste and bitter taste of polyethylene glycol base to the user It has the disadvantage of giving a sense of rejection.

In addition, U.S. Patent No. 5,565,190 uses amorphous silica as an abrasive in a toothpaste composition containing calcium peroxide and sodium hydrogen carbonate, and by storing alkali metal ions such as sodium carbonate to suppress the reactivity of calcium peroxide and sodium hydrogen carbonate. It is suggested that the stability can be improved, but application of other abrasives such as calcium carbonate, calcium dihydrogen phosphate, and alumina is pointed out as inappropriate.

In this situation, the present inventors solve the above problems in the toothpaste composition simultaneously containing sodium hydrogen carbonate for the purpose of inhibiting the peroxide and the periodontal disease for the purpose of tooth whitening, and the peroxide and sodium hydrogen carbonate during storage. As a result of diligent research to provide a toothpaste composition with improved long-term preservation without release of free radicals by inhibiting the reaction, by containing fumed silica as a stabilizer, the moisture in the composition is hydrated to block the decomposition of peroxides by water. In addition, the present invention has been completed by discovering that by using a polyoxyethylene-polyoxypropylene copolymer in combination, hydrogen bonding force can be increased to block the decomposition of peroxides by moisture to improve long-term storage. Furthermore, in the selection of an abrasive used for the effective removal of food residues, plaque and dental contaminants, active oxygen is stored during storage by using alumina trihydrate that does not release metal ions that promote the decomposition of water by peroxides. Since it is not released, it has been excellent in long-term preservation, and has led to the completion of a toothpaste composition which can continuously provide a tooth whitening effect and a periodontal disease suppression effect.

Accordingly, it is an object of the present invention to provide a dentifrice composition with improved long-term preservation in a dentifrice composition having a tooth whitening effect and a periodontal disease inhibiting effect.

In order to achieve the above object, the toothpaste composition according to the present invention, calcium peroxide as an active oxygen source, sodium hydrogen carbonate as a periodontal disease inhibiting component, alumina trihydrate as an abrasive, and fumed silica and polyoxy as a stabilizer It is characterized by containing an ethylene-polyoxypropylene copolymer as an essential component.

Hereinafter, the present invention will be described in detail.

That is, the toothpaste composition according to the present invention is 1 to 6% by weight of calcium peroxide as the active oxygen source, the total weight of the composition, 11 to 20% by weight of sodium hydrogen carbonate as the periodontal disease inhibiting component, 10 to 10% of alumina trihydrate as an abrasive 40 wt%, and 0.2-5 wt% of fumed silica and 0.1-5 wt% of polyoxyethylene-polyoxypropylene copolymer as essential components.

In the toothpaste composition according to the present invention, calcium peroxide (CaO ₂ ), which is used as a source of active oxygen, has a low affinity for water compared to conventional peroxides such as hydrogen peroxide, sodium percarbonate, urea peroxide, and the like, when stored in toothpaste. It can enhance the preservation of heavy free radicals. In addition, since the toothpaste composition according to the present invention contains sodium hydrogen carbonate as an essential ingredient, which promotes the decomposition of water by peroxide, it is preferable to use calcium peroxide having excellent storage capacity of active oxygen during storage as an active oxygen source. .

In addition, in the present invention, in order to prevent decomposition by moisture in the composition of the calcium peroxide containing the purpose for the teeth whitening effect, the fumed silica which can be removed by hydrating the moisture in the composition, and by a strong hydrogen bonding force It contains as an essential component a polyoxyethylene-polyoxypropylene copolymer capable of capturing hydrogen peroxide generated by decomposition of water or calcium peroxide in the composition.

The other components used in the dentifrice composition of the present invention are not particularly limited, but polyethylene glycol and propylene glycol are preferably used as the humectant in order to suppress the activation of the active oxygen source, but the addition of glycerin may be allowed. In addition, as the additive used in small amounts, sweeteners, pH adjusting agents, preservatives, colorants, binders and the like which are commonly used in toothpaste can be added, and one or two or more kinds of caries preventive agents, tartar preventive agents and medicinal components can be used. For example, saccharin sodium, aspartame, stevioside and the like can be used as the sweetening agent, and sodium phosphate, disodium phosphate, trisodium phosphate, citric acid, sodium citrate, tartaric acid and the like as a pH adjusting agent, and paraoxybenzoic acid as an antiseptic. Methyl, propyl paraoxybenzoate, sodium benzoate and the like. Binders include sodium carboxymethylcellulose, carrageenan, xanthan gum, polyvinylpyrrolidone, sodium alginate, and other gums. As cavities prevention agent, sodium fluoride, sodium monofluorophosphate, tin fluoride, etc. can be used, and as tartar prevention agent, sodium pyrophosphate, potassium pyrophosphate, zinc chloride, zinc citrate, etc. can be used, and as an medicinal component, allantoinchlorohydroxy alumina It can be used individually or in mixture of 2 or more types of a nate, an amino capronic acid, chlorohexidine, tocopherol acetate, and pyridoxine hydrochloride.

As the foaming agent, anionic and nonionic surfactants such as sodium lauryl sulfate, sodium N-lauroylsalkosylate, N-long chain acyl glutamate, sucrose fatty acid ester, polyoxyethylene hardened castor oil, and sorbitan fatty acid ester are used alone or in combination. It can mix and use species.

Peppermint oil, spearmint oil, menthol, carbon, anedol, eugenol, etc. can be mixed and used as a fragrance | flavor.

Hereinafter, the composition and its action of the toothpaste composition according to the present invention will be described in more detail with reference to Examples and Test Examples. However, the present invention is not limited to these examples.

(weight%) No. Ingredient Name Example Comparative example One 2 One 2 3 4 5 One Sodium monofluorophosphate 0.76 0.76 0.76 0.76 0.76 0.76 0.76 2 Zaccarin Sodium 0.2 0.2 0.2 0.2 0.2 0.2 0.2 3 glycerin 17.0 20.0 17.0 20.0 18.0 17.0 17.0 4 Polyethylene Glycol 400 20.0 20.0 20.0 20.0 20.0 20.0 20.0 5 Polyoxyethylene-Polyoxypropylene Copolymer 3.0 0.15 - 0.15 3.0 3.0 3.0 6 Sodium bicarbonate 13.0 13.0 13.0 13.0 13.0 13.0 - 7 Calcium peroxide 1.5 1.5 1.5 1.5 1.5 - - 8 Sodium percarbonate - - - - - 1.5 - 9 Alumina Trihydrate 35.0 35.0 35.0 - - 35.0 35.0 10 Amorphous Silica Abrasive - - - 23.0 - - - 11 Calcium dihydrogen phosphate - - - - 35.0 - - 12 Fumed silica 3.0 2.5 - 3.0 3.0 3.0 3.0 13 Sodium Lauryl Sulfate 2.0 2.0 2.0 2.0 2.0 2.0 2.0 14 Spices 1.0 1.0 1.0 1.0 1.0 1.0 1.0 15 Purified water Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount Remaining amount system 100.0 100.0 100.0 100.0 100.0 100.0 100.0

Test Example 1 Determination of Active Hydrogen Peroxide

In order to compare the long-term storage properties of each composition according to Table 1, the residual amount of active hydrogen peroxide was measured as follows to compare the stability of the active oxygen, and observed the state of the tube storage. The results are shown in Table 2.

Experiment method

Approximately 1 g of sample was accurately weighed and then transferred to a 250 ml iodine flask with water. Then, 5 ml of glacial acetic acid was added and mixed, 2 g of potassium iodide and 1 drop of ammonium molybdate solution were added, and then stored in the dark for 10 minutes.

The free iodine was titrated with 0.1 N sodium thiosulfate. Starch solution was used as an indicator near the titration point.

Stability Example Comparative example One 2 One 2 3 4 Remaining H ₂ O ₂ (%) Right after manufacturing 100 100 100 100 100 100 After 1 week at 50 ℃ 100 99 60 85 76 92 After 3 weeks at 50 ℃ 99 99 20 32 25 75 After 6 weeks at 50 ℃ 99 99 - - - 29 Tube storage Right after manufacturing Good Good Good Good Good Good After 1 week at 50 ℃ Good Good Expansion expansion Expansion expansion After 1 week at 50 ℃ Good Good - Expansion - expansion After 1 week at 50 ℃ Good Good - - - Expansion

Test Example 2 Tooth Whitening Effect

The subjects were 36 males and females in their early 20s who had never received dental caries or restorative treatment for 4 upper and lower jaw teeth. The toothpaste of Example 1 was given to 18 of these, and the toothpaste of Comparative Example 5 was given to the remaining 18 to determine the difference in tooth brightness before and after use ^. The color tone was measured using a colorimeter, and the color tone was replaced with the brightness in the Munsel colorimetric table and measured as corrected tooth brightness.

Teeth whitening effect (corrected tooth brightness) Test period Example 1 Comparative Example 5 Statistical significance 2 weeks 7.50 ± 0.64 7.20 ± 0.64 NS 4 Weeks 7.22 ± 0.34 6.99 ± 0.34 * (Note) NS: P≥0.05; *: P≤0.05

Test Example 3 Inhibitory Effect of Periodontal Disease

The test directors were 36 males and females in their early 20s with no periodontal disease or dental caries. 18 of them were given the toothpaste of Example 1, and the other 18 were given the toothpaste of Comparative Example 5 to determine the gingivitis index using Loupe (SurgiTel ^?? , General Scientific Corporations) of 5 times before and after use ^. Measured.

Periodontal Disease Inhibitory Effect Test period Example 1 Comparative Example 5 Gingivitis alleviation rate (%) Statistical significance 2 weeks 0.25 ± 0.13 0.28 ± 0.13 12.0 NS 4 Weeks 0.20 ± 0.13 0.31 ± 0.08 55.0 * (Note) NS: P≥0.05; *: P≤0.05

From the results of the above test example, it can be seen that the toothpaste of the example is more stable than the comparative example because the hydrogen peroxide is preserved 95% or more. In addition, when comparing Example 1 and Comparative Example 4, it can be seen that the calcium peroxide stabilization effect is better than that of sodium percarbonate, it can provide teeth whitening and periodontal disease suppression effect.

As is apparent from the above description, the toothpaste composition according to the present invention simultaneously contains calcium peroxide as a tooth whitening agent and sodium hydrogen carbonate for the purpose of inhibiting periodontal disease, while fumed silica and polyoxyethylene-polyoxy are used as stabilizers. By containing the propylene copolymer as an essential ingredient and selecting and containing alumina trihydrate as an abrasive, it is possible to prevent degradation of the peroxide by moisture during storage, thus providing a toothpaste composition having excellent long-term storage properties that does not release active oxygen. Can provide.

Claims (2)

Toothpaste composition exhibiting tooth whitening effect and periodontal disease inhibiting effect, comprising: calcium peroxide, sodium bicarbonate, alumina trihydrate, fumed silica, and polyoxyethylene-polyoxypropylene copolymer as essential components Toothpaste composition with enhanced preservation. The method according to claim 1, wherein the calcium peroxide is in an amount of 1 to 6% by weight based on the total weight of the composition, the sodium bicarbonate is in an amount of 11 to 20% by weight, and the alumina trihydrate is 10 to 40% by weight. Toothpaste composition, characterized in that the fumed silica is contained in an amount of 0.2% to 5% by weight, and the polyoxyethylene-polyoxypropylene copolymer is contained in an amount of 0.1 to 5% by weight.