Oral composition for removing tooth stain

A composition and technology in the oral cavity, which can be used in oral care, dentistry, cosmetic preparations, etc., can solve problems such as tooth dissolution, and achieve the effects of preventing dissolution, strong cleaning effect, and less damage

Active Publication Date: 2013-06-12
REGENETISS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, if peroxide is used to remove tooth stains, there is a problem that the enamel of the tooth will be dissolved by peroxide

Method used

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  • Oral composition for removing tooth stain
  • Oral composition for removing tooth stain
  • Oral composition for removing tooth stain

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0059] Fabrication of Dried Tea-Stained Apatite for Stained Tooth Models

[0060] Put 1 to 2 g of hydroxyapatite (Biogel-HTP, manufactured by BioRad) into a 50 mL test tube, add 20 mL of protein solution (1% EquosSCP5000, Nitta Gel Company), and let it stand for 10 to 15 minutes (min). , centrifuge (3000 x g, 2 min), and remove the supernatant. Afterwards, add the apatite precipitated after centrifugation to 20 mL of liquid with tea stains (tea stains) (put 5 g of instant coffee, 2 bags of black tea in bags, and 2 bags of green tea in bags into 100 mL of water, heat with microwave 2 minutes. After that, vibrate at room temperature, and place it for cooling for 3 hours to one night. After that, filter it with 200 mesh filter paper. The liquid obtained in this way is the liquid with tea stains), after standing for 10 to 15 minutes, carry out Centrifuge (2500rpm, 2 minutes), remove the supernatant. Finally, 20 mL of artificial saliva (20 mM HEPES-KOH pH 7.0, 1.5 mM CaCl 2 , ...

Embodiment 2

[0069] The relationship between the concentration of super phosphoric acid and the effect of promoting bleaching

[0070] In this example, the apatite bleaching effect of various concentrations of sodium superphosphate on 3.5% hydrogen peroxide was compared. Among them, the pH is 7.5, the temperature is kept at 42° C., and the bleaching time is 10 minutes, 30 minutes, 1 hour and 3 hours. The results are shown in Table 2.

[0071] Table 2. The concentration of various super phosphoric acids on the effect of improving the bleaching effect of hydrogen peroxide

[0072]

[0073] According to the results shown in Table 2, it can be seen that a higher bleaching acceleration effect can be obtained when the superphosphoric acid concentration is 5% to 10%.

Embodiment 3

[0075] Different concentrations of hydrogen peroxide have different bleaching effects

[0076] The differences in the bleaching effects of hydrogen peroxide at different concentrations (3.5% to 10%) were studied and evaluated in the examples of the following conditions. (i) super phosphoric acid: 5%, 10%, 20%; treatment time: 10 minutes, 20 minutes, 30 minutes; (iii) treatment temperature: 45°C; (iv) pH7.0. Moreover, as several comparative examples, the bleaching effect by using hydrogen peroxide alone and the bleaching effect by using superphosphoric acid alone under alkaline conditions (pH9.5-11.6) were examined. The obtained results are shown in Table 3.

[0077]From the results in Table 3, it can be seen that if super phosphoric acid is used alone, no matter which condition is used, the pigment residual rate is above 50%, and the bleaching effect is low. In addition, when hydrogen peroxide is used alone, under alkaline conditions, even if 20% hydrogen peroxide is used fo...

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Abstract

Provided is an oral composition by which tooth stain can be effectively removed and which scarcely damages the teeth and gums and can be easily applied. The oral composition for removing tooth stain, which comprises 3.5-30 wt% inclusive of a peroxide and 5-20 wt% inclusive of fused phosphoric acid (in particular, ultraphosphoric acid having an average degree of phosphoric acid polymerization of 10 to 30 inclusive).

Description

technical field [0001] The present invention relates to an oral composition for removing tooth stains, in particular to a composition for oral cavity containing peroxide and polyphosphoric acid at a prescribed concentration so as to effectively remove tooth stains. Background technique [0002] In the prior art, various proposals have been made for oral compositions for removing tooth stains. [0003] For example, in the document of International Publication No. WO2007-145287 (Patent Document 1), a pigment remover for oral cavity is disclosed. [0024], [0033] paragraphs of this patent document). [0004] Japanese Patent Laid-Open Publication No. 2009-126819 (Patent Document 2) discloses a whitening agent containing hydrogen peroxide or urea hydrogen peroxide as a radical catalyst. [0005] Japanese Patent Laid-Open Publication No. 2009-024009 (Patent Document 3) discloses a chewing gum composition capable of removing tooth stains contained on tooth surfaces, and the chewing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K8/22A61K8/24A61K8/40A61Q11/00
CPCA61K8/22A61K8/24A61K8/86A61Q11/00A61K8/40A61C19/066A61K8/42A61K8/84A61K2800/75A61K2800/81A61N5/062
Inventor 柴肇一川添祐美加藤真一
Owner REGENETISS
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