KR20140104529A - Tooth bleaching composition and method of bleaching tooth - Google Patents
Tooth bleaching composition and method of bleaching tooth Download PDFInfo
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- KR20140104529A KR20140104529A KR1020130016985A KR20130016985A KR20140104529A KR 20140104529 A KR20140104529 A KR 20140104529A KR 1020130016985 A KR1020130016985 A KR 1020130016985A KR 20130016985 A KR20130016985 A KR 20130016985A KR 20140104529 A KR20140104529 A KR 20140104529A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/19—Cosmetics or similar toiletry preparations characterised by the composition containing inorganic ingredients
- A61K8/22—Peroxides; Oxygen; Ozone
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K8/00—Cosmetics or similar toiletry preparations
- A61K8/18—Cosmetics or similar toiletry preparations characterised by the composition
- A61K8/72—Cosmetics or similar toiletry preparations characterised by the composition containing organic macromolecular compounds
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61Q—SPECIFIC USE OF COSMETICS OR SIMILAR TOILETRY PREPARATIONS
- A61Q11/00—Preparations for care of the teeth, of the oral cavity or of dentures; Dentifrices, e.g. toothpastes; Mouth rinses
- A61Q11/02—Preparations for deodorising, bleaching or disinfecting dentures
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
- A61K2800/00—Properties of cosmetic compositions or active ingredients thereof or formulation aids used therein and process related aspects
- A61K2800/80—Process related aspects concerning the preparation of the cosmetic composition or the storage or application thereof
- A61K2800/92—Oral administration
Abstract
Description
A tooth whitening composition and a tooth whitening method are disclosed. More particularly, a tooth whitening composition comprising a photoinitiator and a tooth whitening method are disclosed.
As teeth are an important element of beautiful smiles, as the standard of living improves, there is an increasing need to improve the hue and form of teeth as the aesthetic demands of patients increase.
There are several factors that affect the esthetics of the teeth such as the arrangement, size, color, texture, and light transmission of the teeth. Among them, the color of the teeth is the most sensitive and important factor. It can also cause psychological problems.
The discoloration of teeth can be divided into endogenous discoloration and extrinsic discoloration. Exogenous discoloration is caused by adherence of a coloring substance to the outside of the tooth and can be easily removed by mechanical manipulation. However, endogenous discoloration is caused by the pathological state of dental pulp But it is possible that decomposition products due to hemorrhage in the dimension or destruction of the dental tissue infiltrate into the dental tubule.
The most common treatment for endogenous discoloration of teeth is tooth whitening using hydrogen peroxide (H 2 O 2 ). Such tooth whitening may be caused by in-office bleaching, home bleaching, and OTC whitening (over-the-counter bleaching).
In general, the whitening mechanism of hydrogen peroxide is not fully understood, but it is thought that whitening occurs by free radical generated from hydrogen peroxide through the enamel and dentin of the tooth and oxidizing the pigment existing in the tooth.
In the 1970s, devices using light and heat have been used to activate the decomposition reaction of hydrogen peroxide to enhance the whitening effect and shorten the time required for whitening.
However, the technique of using light and heat together raises the temperature of the teeth and enlarges the blood vessels in the dimension, thereby causing a problem of post-procedure hypersensitivity.
One embodiment of the present invention provides a tooth whitening composition comprising a photoinitiator.
Another embodiment of the present invention provides a tooth whitening method using the tooth whitening composition.
According to an aspect of the present invention,
A tooth whitening composition comprising a dental whitening agent, a binder, a photoinitiator and a solvent.
The dental whitening agent may include peroxides, hypochlorites, percarbonates, peroxides or combinations thereof.
The binder may comprise a polymer.
The polymer may have a number average molecular weight of 500,000 to 4,000,000.
The photoinitiator may be decomposed to generate free radicals when exposed to blue light having a wavelength of 400 to 550 nm.
The photoinitiator is camphor quinone DL- (DL-camphorquinone), 1- phenyl-1,2-propane dione, 2,4,6-trimethylbenzoyldiphenylphosphine oxide (Lucirin ® TPO), benzophenones, benzotriazole, 2,2-diethoxyacetophenone (DEAP), chloroacetophenone, or a combination thereof.
The solvent may comprise water, ethanol or a combination thereof.
The tooth whitening composition may include 100 parts by weight of the dentifrice whitening agent, 30 to 1,700 parts by weight of the binder, 0.03 to 35 parts by weight of the photoinitiator, and 300 to 3,200 parts by weight of the solvent.
The tooth whitening composition may further comprise a metal component, a pH adjusting agent, a chelating agent, or a combination thereof.
The metal component may be one derived from a metal salt.
The metal salt may include an iron salt, a calcium salt, a magnesium salt, a copper salt, or a combination thereof.
The pH adjusting agent may comprise sodium hydroxide, sodium carbonate, sodium bicarbonate, potassium carbonate, tris (hydroxymethyl) aminomethane, triethanolamine or combinations thereof.
The chelating agent may include EDTA (ethylenediaminetetraacetic acid), sodium citrate, bisphosphonate, EGTA (ethylene glycol tetraacetic acid), ethylenediamine, oxine, orthophenanthroline or a combination thereof.
The content of the dental whitening agent may be 3 to 35 parts by weight based on 100 parts by weight of the total weight of the tooth whitening composition.
According to another aspect of the present invention,
And applying the tooth whitening composition to a tooth surface.
The tooth whitening method may further include irradiating the tooth whitening composition coated on the tooth surface with blue light having a wavelength of 400 to 550 nm.
The tooth whitening composition according to one embodiment of the present invention is excellent in decomposing ability of a dental whitening agent without supplying heat, and because it uses light rather than heat, irritation caused by vascular expansion in a dimension can be prevented in advance. On the other hand, when an optical scanner that uses heat and light is used, heat is inevitably caused to expand the blood vessels in the dimension, resulting in hypersensitivity.
1 is a photograph showing a whitening effect of a tooth whitening composition according to an embodiment of the present invention.
FIG. 2 is a graph showing a change in brightness of a tooth according to the number of times of whitening treatment using a tooth whitening composition according to an embodiment of the present invention. FIG.
Hereinafter, the tooth whitening composition according to one embodiment of the present invention will be described in detail.
A tooth bleaching composition according to one embodiment of the present invention includes a dental whitening agent, a binder, a photoinitiator, and a solvent.
The dental whitening agent decomposes and reacts with a coloring component (for example, protein) present on the surface of the tooth to remove the coloring component.
The dental whitening agent may include peroxides, hypochlorites, percarbonates, peroxides or combinations thereof.
The peroxide may include hydrogen peroxide, sodium peroxide, potassium peroxide, carbamide peroxide, sodium perborate, sodium percarbonate, or a combination thereof.
The hypochlorite may include sodium hypochlorite, potassium hypochlorite, calcium hypochlorite, barium hypochlorite, or combinations thereof.
The percarbonate may include sodium percarbonate, potassium percarbonate, or a combination thereof.
The peroxide may include peroxyacetic acid, peroxyphosphoric acid, peroxodisophosphoric acid, peroxic sulfuric acid, peroxic di-sulfuric acid, peroxic acid, or a combination thereof.
The binder serves to bind the components of the tooth whitening composition. Accordingly, the tooth whitening composition can form a gel.
The binder may comprise a polymer. The polymer may have a number average molecular weight of 500,000 to 4,000,000. For example, the binder may comprise an ionic polymer, a nonionic polymer, or a combination thereof.
The ionic polymer may include carboxymethyl cellulose, carboxypropyl cellulose, or a combination thereof.
The nonionic polymer may be at least one selected from the group consisting of polyvinyl alcohol, polyvinylpyrrolidone, hydroxyethyl cellulose, hydroxypropyl cellulose, polyacrylic acid, . ≪ / RTI >
When exposed to light, the photoinitiator is decomposed to generate free radicals, and the generated free radicals promote the decomposition reaction of the dental whitening agent. Since the tooth whitening composition includes the photoinitiator, the dental whitening agent can be rapidly decomposed without heat supply to exhibit an excellent whitening effect, and whitening treatment can be performed at room temperature (20 to 30 ° C) It is possible to prevent the occurrence of hypersensitivity.
The photoinitiator may be decomposed to generate free radicals when exposed to blue light having a wavelength of 400 to 550 nm.
The photoinitiator is camphor quinone DL- (DL-camphorquinone), 1- phenyl-1,2-propane dione, 2,4,6-trimethylbenzoyldiphenylphosphine oxide (Lucirin ® TPO), benzophenones, benzotriazole, 2,2-diethoxyacetophenone (DEAP), chloroacetophenone, or a combination thereof.
The solvent serves to dissolve at least the dental whitening agent and the binder. Such a solvent may comprise water, ethanol or a combination thereof.
The tooth whitening composition may include 100 parts by weight of the dentifrice whitening agent, 30 to 1,700 parts by weight of the binder, 0.03 to 35 parts by weight of the photoinitiator, and 300 to 3,200 parts by weight of the solvent.
If the content of the binder and the solvent is within the above ranges for each 100 parts by weight of the dental whitening agent, the viscosity of the tooth whitening composition is adequate and the whitening gel composition is not easily diluted or lost by the saliva, , And can have excellent phase stability.
If the content of the photoinitiator is within the above range with respect to 100 parts by weight of the dentifrice whitening agent, the amount of produced byproducts is small and the amount of free radicals is large, thereby obtaining a superior tooth whitening effect.
The tooth whitening composition may further comprise a metal component, a pH adjusting agent, a chelating agent, or a combination thereof.
The metal component has an affinity with a constituent component of the enamel (for example, an inorganic component) so that when the tooth whitening composition is applied to a tooth surface, the metal component easily migrates toward the enamel. Accordingly, the metal component (particularly, metal ion) can dissolve the dental whitening agent on or near the teeth surface, thereby effectively removing coloring components deep in enamel, thereby increasing the tooth whitening effect. Thus, the metal component promotes the decomposition of the dental whitening agent to activate tooth whitening, and enables quick and effective teeth whitening.
The metal component may be one derived from a metal salt. Such metal components may include metal ions, a center metal forming a chelate compound, or combinations thereof.
The metal salt may include an iron salt, a calcium salt, a magnesium salt, a copper salt, or a combination thereof. However, the present invention is not limited thereto, and the metal salt may include other transition metal salts and / or other alkali metal salts.
The iron salt may be selected from the group consisting of iron (II) chloride, iron (III) chloride, iron bromide, iron sulfate, iron nitrate, iron (II) acetate, iron propionate, iron citrate, iron gluconate, iron lactate, iron oxide, And at least one compound selected from the group consisting of ferric salts and ferrous salts.
Wherein the calcium salt is selected from the group consisting of hydrated calcium chloride (CaCl 2 xH 2 O, x = 1, 2, 4 or 6), anhydrous calcium chloride (CaCl 2 ), calcium glycerophosphate, calcium fluoride (CaF 2 ), calcium citrate, calcium gluconate , Calcium oxide, calcium ascorbinate, calcium lactate, calcium primary phosphate, calcium secondary phosphate, calcium tertiary phosphate, calcium carbonate, calcium pantothenate, or combinations thereof.
The magnesium salt may include magnesium phosphate, magnesium nitrate, magnesium acetate, magnesium chloride, magnesium carbonate, magnesium sulfate, magnesium gluconate, magnesium hydroxide or a combination thereof.
The copper salt includes copper pyrophosphate, copper sulfate, copper nitrate, copper (II) acetate, copper (I) chloride, copper (II) chloride, copper carbonate (CuCO 3 ), copper gluconate, copper hydroxide or a combination thereof can do.
The tooth whitening composition may have a metal ion concentration of 0.05 to 1 mM. When the tooth whitening composition contains a chelate compound, the center metal of the chelate compound is also included in the calculation of the concentration of the metal ion. If the metal ion concentration is within the above range, an excellent tooth whitening effect can be obtained without causing additional coloration caused by excessive metal ions.
The pH adjusting agent promotes the decomposition of the dental whitening agent. Such pH adjusting agents may include sodium hydroxide, sodium carbonate, sodium bicarbonate, potassium carbonate, tris (hydroxymethyl) aminomethane, triethanolamine or combinations thereof.
The content of the pH adjusting agent may be 16 to 350 parts by weight based on 100 parts by weight of the dentifrice. If the content of the pH adjusting agent is within the above range with respect to 100 parts by weight of the dentifrice whitening agent, the pH of the tooth whitening composition becomes appropriate and there is no risk of irritating the tooth mucosa, and the dental whitening agent is sufficiently decomposed, Can be obtained.
The chelating agent is intended to prevent reduction of the metal ion contained in the tooth whitening composition (for example, reaction of a metal ion and a hydroxyl group present on the tooth surface) and precipitation of the metal thereby. That is, the chelating agent forms a chemically stable chelate compound to be added to the metal ion.
The chelating agent may include EDTA (ethylenediaminetetraacetic acid), sodium citrate, bisphosphonate, EGTA (ethylene glycol tetraacetic acid), ethylenediamine, oxine, orthophenanthroline or a combination thereof.
The content of the chelating agent may be 1 to 200 parts by weight based on 100 parts by weight of the dentifrice whitening agent. When the content of the chelating agent is within the above range with respect to 100 parts by weight of the dental whitening agent, phase stability of the dental whitening agent in the tooth whitening composition is excellent, and a superior tooth whitening effect can be obtained.
The tooth whitening composition may further comprise other additives such as fragrances, perceptual sensitizers, dental caries inhibitors, gum disease improvement agents or combinations thereof.
The fragrance may include peppermint, spearmint, citrus, herb, menthol, or a combination thereof.
The hypersensitive agent may be potassium nitrate, stannous fluoride, sodium monofluorophosphate (MFP), sodium fluoride (NaF), sodium fluoride (Na 2 SiF 6 : sodium silicofluoride) or a combination thereof.
The dental caries inhibitor may comprise sodium fluoride (NaF), calcium fluoride (CaF 2 ) or a combination thereof.
The gum disease-improving agent may be selected from bamboo salt, tocopherol acetate, vitamin D, alantoin chlorohydroxy aluminum, triclosan, xylitol, calcium glycerophosphate, aminocaproic acid, KNO 3 , sodium monofluoro Sodium monofluorophosphate, an enzyme, or a combination thereof.
The content of the other additives may be appropriately adjusted within a range that can improve the feel and functionality of the tooth whitening composition without seriously affecting the shape and stability of the tooth whitening composition.
The content of the dental whitening agent may be 3 to 35 parts by weight based on 100 parts by weight of the total weight of the tooth whitening composition. When the content of the dental whitening agent is within the above range with respect to 100 parts by weight of the total weight of the tooth whitening composition, a superior tooth whitening effect can be obtained without fear of irritating the gingiva and oral mucosa.
Another embodiment of the present invention provides a tooth whitening method comprising applying the tooth whitening composition to a tooth surface. When the tooth whitening composition is applied to the tooth surface, the tooth whitening composition may be filled in a single syringe and then released into a brush to be applied.
The tooth whitening method may further include irradiating the tooth whitening composition coated on the tooth surface with blue light having a wavelength of 400 to 550 nm. An LED light irradiator may be used to irradiate the blue light. By irradiating blue light in this way, the decomposition of the photoinitiator is promoted, so that the amount of free radicals derived from the photoinitiator is increased. This free radical promotes the decomposition of the dental whitening agent, and various radicals (OH radical and / or oxygen Radicals and the like) are produced, whereby the whitening effect can be improved.
Hereinafter, the present invention will be described in more detail by way of examples, but the present invention is not limited to these embodiments.
Example
Example One: Photoinitiator Preparation of containing tooth whitening composition
Hydrogen peroxide, 100 parts by weight of polyacrylic acid: a mixture (Sigma Aldrich, Carbomer, weight average molecular weight of 3,000,000), 33.3 parts by weight of photo-initiator (Lucirin ® TPO), 0.67 parts by weight of purified water and 533.3 parts by weight was prepared in the tooth whitening composition.
Comparative Example One: Photoinitiator Preparation of non-containing tooth whitening composition
100 parts by weight of hydrogen peroxide, 33.3 parts by weight of polyacrylic acid (Sigma Aldrich, Carbomer, weight average molecular weight: 3,000,000) and 533.3 parts by weight of purified water were mixed to prepare a tooth whitening composition.
Evaluation example
Evaluation example 1: Evaluation of whitening effect
The teeth whitening composition prepared in Example 1 was applied to four human teeth having similar shade steps, and then the surface of each tooth was coated with an LED light irradiator (Good Doctor, Doctor Light W) And blue light having a wavelength of 430 to 500 nm was irradiated. Then, the respective whitened teeth were visually observed to evaluate the whitening effect according to the VITA Shade Classical Guide. Specifically, application of the tooth whitening composition and irradiation of blue light were carried out as follows: (i) The tooth whitening composition was applied to each of the teeth with a brush. (ii) The blue light was applied to the surface of each of the applied teeth for 15 minutes. The above (i) and (ii) were repeated two more times. In addition, photographs of the teeth before the whitening treatment and the teeth after the whitening treatment three times were taken and shown in Fig. Further, after each whitening treatment is completed, the whitening effect of each of the whitened teeth is evaluated, and then the degree of increase in brightness after the whitening treatment of the four whitened teeth against the unblossched teeth (i.e., The degree of rise) was calculated. The results are shown in Fig.
In Fig. 1 (a), the rows are the teeth before the whitening treatment, and (b) the teeth are the teeth after the whitening treatment.
Referring to FIGS. 1 and 2, even though the whitening treatment was performed for a short time within 60 minutes, the shade step was improved by 7 to 8 stages compared with the teeth before the whitening treatment. In addition, as the number of whitening treatments increased, the degree of increase in the brightness level of the whitened teeth increased.
Evaluation example 2: Color of tooth Change value evaluation
Using the tooth whitening compositions prepared in Example 1 and Comparative Example 1, three human teeth having similar shade steps were subjected to whitening treatment by the following three methods, The color change value (DELTA E * ab) of each tooth subjected to two times and three times of whitening was measured, and the results are shown in Table 1 below. The values shown in Table 1 are color change values (DELTA E * ab). Here, a spectrophotometer (Spectro Color Meter SE-2000, manufactured by Nippon Denshoku Industries Co., Ltd., Tokyo, Japan) was used as a device for measuring the color change value (DELTA E * ab).
(First method)
(i) The tooth whitening composition prepared in Comparative Example 1 was applied to one of the three teeth with a brush. (ii) The applied tooth was allowed to stand for 15 minutes. The above (i) and (ii) were repeated two more times.
(Second method)
(i) The tooth whitening composition prepared in Example 1 was applied to one of the three teeth with a brush. (ii) The applied tooth was allowed to stand for 15 minutes. The above (i) and (ii) were repeated two more times.
(Third method)
(i) The tooth whitening composition prepared in Example 1 was applied to the remaining one of the three teeth with a brush. (ii) The surface of the applied tooth was irradiated with blue light having a wavelength of 430 to 500 nm for 15 minutes using an LED light irradiator (Good Doctors, Doctor Light W). The above (i) and (ii) were repeated two more times.
collection
(Using the composition of Comparative Example 1)
(Using the composition of Example 1 / not irradiating light)
(Using the composition of Example 1 / light irradiation)
Referring to Table 1 above, the tooth whitening compositions (the second and third methods) prepared in Example 1 were superior to the tooth whitening compositions prepared in Comparative Example 1 (the first method). In addition, even when the tooth whitening composition prepared in Example 1 was used, the whitening effect was superior to the case where the blue light was irradiated (the third method) compared with the case (the second method).
While the present invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
Claims (16)
Wherein the dental whitening agent comprises peroxide, hypochlorite, percarbonate, peroxide, or a combination thereof.
Wherein the binder comprises a polymer.
Wherein the polymer has a number average molecular weight of 500,000 to 4,000,000.
Wherein the photoinitiator decomposes upon exposure to blue light having a wavelength of from 400 to 550 nm to produce free radicals.
The photoinitiator is camphor quinone DL- (DL-camphorquinone), 1- phenyl-1,2-propane dione, 2,4,6-trimethylbenzoyldiphenylphosphine oxide (Lucirin ® TPO), benzophenones, benzotriazole, 2,2-diethoxyacetophenone (DEAP), chloroacetophenone, or a combination thereof.
Wherein the solvent comprises water, ethanol or a combination thereof.
Wherein the tooth whitening composition comprises 100 parts by weight of the dental whitening agent, 30 to 1,700 parts by weight of the binder, 0.03 to 35 parts by weight of the photoinitiator, and 300 to 3,200 parts by weight of the solvent.
Wherein said tooth whitening composition further comprises a metal component, a pH adjusting agent, a chelating agent, or a combination thereof.
Wherein the metal component is derived from a metal salt.
Wherein the metal salt comprises an iron salt, a calcium salt, a magnesium salt, a copper salt, or a combination thereof.
Wherein the pH adjusting agent comprises sodium hydroxide, sodium carbonate, sodium bicarbonate, potassium carbonate, tris (hydroxymethyl) aminomethane, triethanolamine or a combination thereof.
Wherein the chelating agent comprises EDTA (ethylenediaminetetraacetic acid), sodium citrate, bisphosphonate, EGTA (ethylene glycol tetraacetic acid), ethylenediamine, oxine, orthophenanthroline or a combination thereof.
Wherein the content of the dental whitening agent is 3 to 35 parts by weight based on 100 parts by weight of the total weight of the tooth whitening composition.
Further comprising the step of irradiating the tooth whitening composition coated on the tooth surface with blue light having a wavelength of 400 to 550 nm.
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| KR1020130016985A KR20140104529A (en) | 2013-02-18 | 2013-02-18 | Tooth bleaching composition and method of bleaching tooth |
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| KR1020130016985A KR20140104529A (en) | 2013-02-18 | 2013-02-18 | Tooth bleaching composition and method of bleaching tooth |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101650741B1 (en) | 2015-11-09 | 2016-08-31 | 이큐맥슨제약 주식회사 | Coating film-forming agent for teeth whitening and Forming method of teeth whitening-coating film |
| KR20210045767A (en) | 2019-10-17 | 2021-04-27 | 이향선 | Composition for tooth whitening coating and method for their use |
-
2013
- 2013-02-18 KR KR1020130016985A patent/KR20140104529A/en not_active Application Discontinuation
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101650741B1 (en) | 2015-11-09 | 2016-08-31 | 이큐맥슨제약 주식회사 | Coating film-forming agent for teeth whitening and Forming method of teeth whitening-coating film |
| WO2017082526A1 (en) * | 2015-11-09 | 2017-05-18 | 이큐맥슨제약 주식회사 | Agent for forming tooth whitening coating film and method for forming tooth whitening coating film |
| KR20210045767A (en) | 2019-10-17 | 2021-04-27 | 이향선 | Composition for tooth whitening coating and method for their use |
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