JP2001031543A - Whitening coat dentifrice - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a whitening coat dentifrice which has the tooth-cleaning action by conventional dentifrice and can give persistent whiteness capable of being appealed as a fashion to teeth, after the teeth are cleaned. SOLUTION: This whitening coat dentifrice comprises titanium oxide or kaolin as a whitening component, sodium polyacrylate as a coating film component, coral calcium as an abrasive and an auxiliary agent for coating films, and further carboxyvinyl polymer as an auxiliary agent for coating films, and has a pH value of 5.5 to 7.0.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention belongs to the technical field of a dentifrice having a whitening coat function for keeping teeth white.

[0002]

2. Description of the Related Art In the oral cavity, there are various kinds of substances such as various bacteria and their products, deposits such as plaque and tartar, food debris, and exfoliated epithelial cells. Harmful to teeth, gums and oral mucosa. Excluding these harmful factors, various means have been considered to keep the tissues in the oral cavity clean and enhance its function. These means are collectively called mouth cleaning. Types of oral cleaning methods include natural cleaning methods, artificial cleaning methods, and surgical cleaning methods. The natural cleaning method is also called a self-cleaning action, in which the oral cavity itself performs its function to naturally clean teeth and the oral cavity. Examples of this action include secretion and action of saliva, mastication by eating food and drink, and action of oral bacteria. On the other hand, a method of artificially cleaning the oral cavity using a specific material or device is called artificial cleaning. That is, it is a cleaning method performed by an individual, that is, a cleaning method using a toothbrush and a toothbrush. Surgical cleaning is a schedule performed by a dentist or dental hygienist.
This is a cleaning method for rings and the like. The purpose of these oral cleanings is to remove plaque and to remove oral bacteria, Streptococcus mutans, and to prevent oral infections ultimately to prevent cavity teeth. Connect. Insect tooth is a disease in which minerals are melted from the teeth (demineralization), and substantial defects occur, which expand in the direction of the pulp, and eventually the entire tooth collapses. Alveolar pyorrhea is a disease in which inflammation of periodontal tissue progresses chronically due to various causes,
Gingival redness and swelling and bleeding are repeated, and eventually a periodontal pocket is formed, followed by swaying of the teeth, bad breath and drainage from the gums, finally loosening and slipping out of the teeth. Generally, we practice daily brushing to prevent cavities and alveolar pyorrhea. Prevents cavities by using a toothbrush and dentifrice to prevent and remove teeth, whiten teeth, remove plaque, purify the mouth, prevent bad breath, remove tartar, remove tartar Preventing deposition, preventing alveolar pyorrhea, and preventing gingivitis are defined by the efficacy or range of efficacy of tooth brushing.

[0003]

The purpose of tooth brushing is to prevent mucus teeth and alveolar pyorrhea. Among the effects and effects of tooth brushing as cosmetics or quasi-drugs, there are items such as "whitening teeth". However, in this case, it is to clean the deposits adhered to the tooth surface without damaging the teeth. For this purpose, some of the components of the toothpaste include polishing of dibasic calcium phosphate, calcium carbonate, aluminum hydroxide and the like. And a foaming agent such as sodium lauryl sulfate and sodium lauroyl sarcosine. However, there is a problem that it is impossible to completely remove the stains of the teeth caused by cigarette tarnish without damaging the teeth, and it is also very difficult to whiten the unique tooth color of each individual. It is also conceivable to increase the amount of an abrasive, a foaming agent, etc. in the formulation for the purpose of whitening the teeth. However, the irritation of the oral mucosa, the irritation to the teeth and gingiva, and the abrasive after the mouth is washed with water However, taking into account the incorporation of the foaming agent into the body through the digestive tract and its effects, there is a problem in that there are concerns about health management. SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object a whitening effect, which has a conventional mouth cleaning effect as a dentifrice, has long-lasting whiteness of the teeth after cleaning, and can be appealed as a fashion. An object of the present invention is to provide a coating dentifrice.

[0004]

In order to solve the above-mentioned problems, the invention according to claim 1 comprises titanium oxide or kaolin as a whitening component, sodium polyacrylate as a film-forming agent, and a film-forming auxiliary. And a whitening coat dentifrice containing coral calcium as an abrasive. The effect of the above configuration is that titanium oxide and kaolin, which were conventionally only used as abrasives, are coated with a film of sodium polyacrylate with coral calcium interposed on the teeth to extend the whiteness of the teeth, An inorganic ion such as calcium, magnesium or the like is fixed on the surface in the form of a film to replenish the missing parts of the teeth (cavities). In order to solve the above-mentioned problems, the invention according to claim 2 is a whitening-coat dentifrice in which carboxyvinyl polymer is added to claim 1 as a film aid. By adding the carboxyvinyl polymer, the ability to form a film and the ability to retain a film are more reliably improved. In order to solve the above problems, the invention described in claim 3 is based on claims 1 and 2
The whitening coat dentifrice according to the above, wherein the pH of the dentifrice plaster is
Is in the range of 4 to 7. Within the above numerical values, by setting the pH of the paste of the dentifrice to 5.5 to 7.0, the aggregation of sodium polyacrylate in the paste is delayed, and the pH of the saliva liquor is adjusted to 6. Since the pH is 4 to 7.0, the pH value becomes the same or rises during use, and the teeth begin to be covered by cloudiness and deposition due to the agglutination reaction. In addition, since the coating of this degree is gradually removed by the physical cleaning action, it can be used with confidence.

[0005]

Next, a preferred embodiment of the present invention will be described. The inventor of the present invention has made various studies and repeated studies on how to whiten teeth without damaging them while taking into account the safety in the oral cavity as much as possible. Then, they came up with the idea of including a white pigment such as kaolin or titanium oxide in a conventional dentifrice component and applying a white tooth surface. As a result of further studies, it has been found that to keep the tooth surface white for a long time, the tooth surface must be coated.
Considering that it is best to coat with, we adopted sodium polyacrylate, a film-forming type water-soluble polymer,
As described below, the surface of the tooth was expected to be covered with a white coat. The present inventor has made further studies based on this fact, and as a result, was able to arrive at the present invention.

The dentifrices of the examples described below of the present invention are as follows. That is, in addition to a conventional dentifrice component, a titanium oxide which is a white pigment conventionally used as an abrasive as a dentifrice is used, and a water-soluble polymer, sodium polyacrylate, is used for coating the teeth with teeth. Further, calcium carbonate, particularly coral calcium, which is an inorganic component, was used for the purpose of further enhancing the coating properties (film forming ability / film retaining ability). Titanium oxide or kaolin was used as the whitening component. Titanium oxide, which is a white pigment, is expensive, but has better fluorescent coloring than kaolin, and can provide a whitening effect even with a small amount. However, on the contrary, if the amount is too large, the tongue becomes white, causing inconvenience. Therefore, the amount of addition is 0.5 w / w%
~ 20.0w / w% (% by weight) is good, preferably 1.0w / w%
110.0 w / w%, more preferably 2.0 w / w% to 5.0 w / w%. Although kaolin is inexpensive, it needs to be used a little more, and if kaolin alone is used, the addition amount is 3.0 w / w% to 50.0%.
w / w% (% by weight) is good, preferably 4.0 w / w% to 20.0 w
/ w%, more preferably about 5.0 w / w% to 10.0 w / w%. If used in combination with titanium oxide, it may be used in a small amount, preferably from 1.0 w / w% to 20.0 w / w% (weight%), preferably from 2.0 w / w% to 10.0 w / w%, more preferably Is 3.0w / w% ~ 8.0
w / w% is good. When the amount of the water-soluble polymer, sodium polyacrylate, which is a coating agent, is too small, there is no coating effect, and when it is too large, the polishing effect as toothpaste is hindered. Therefore, 0.01 w / w% to 3.00%. About w / w% is good, preferably 0.02 w / w% to 2.00 w / w%, more preferably 0.05 w / w%.
w% to 1.00 w / w% is good. Furthermore, calcium-based coral calcium added for the purpose of enhancing the functions of the water-soluble polymer (film-forming ability and film-retaining ability) is formed by coagulation of polyacrylate ions when sodium polyacrylate is dissolved in water. Promotes white turbidity and deposition, so that the ability to form and retain the film works effectively.
If the film-holding ability is not obtained, and if the amount is too large, the other polishing action and the coating action will be reduced, so that it is preferably about 3.0 w / w% to 60.0 w / w%, preferably 10.0 w / w% to 40.0 w / w. %, More preferably 20.0 w / w% to 30.0 w / w%.

The so-called loose coral calcium used in the present embodiment is a sandy substance that is a natural stone coral belonging to a reef-building coral, which is weathered and fossilized, and sandy substances deposited on the seabed are washed, dried, and sterilized. , Pulverized, and specifically contains the following mineral components.

[0008] Calcium -------------- 35w / w% (calcium carbonate) ---------- (86.0-94.0w / w%) Magnesium ---- ---------- 2w / w% (magnesium carbonate) -------- (6.0-7.5w / w%) Potassium -------------- 10ppm Iron ----------------- 0.12w / w% Iodine ----------------- 2.2ppm Copper ----- ------------ 0.8ppm zinc ----------------- 2.4ppm manganese --------------- -12.0ppm Selenium ------------------ 0.05ppm

In particular, as described above, so-called coral calcium is mainly composed of calcium, and trace components such as magnesium, iron, and zinc are considered to be good for dental cementum, and are used for sodium polyacrylate. hand,
The film-forming ability and the film-retaining ability act to be effective. In addition, coral calcium is a composite of a plurality of substances, and the particles themselves are porous, and the particle size is 8 to 10μ, which is finer than the conventional abrasive particle size of 20μ. . Furthermore, in order to improve the function of the water-soluble polymer (film-forming ability and film-retaining ability), the pH of the base toothpaste is preferably set to 5.5 to 7.0, preferably 6.0 to 6.5. This is because ordinary dentifrices have a pH of 8 to 9, but the agglutination reaction of sodium polyacrylate, which is a coating agent, becomes active at pH 8 to 9, so it is agglomerated by sodium polyacrylate in the stored plaster. However, it is inconvenient to occur, so the pH should be as low as possible and acidic (pH 5.5 ~
7) It is necessary to prevent the agglutination reaction. When used, the pH of saliva is usually 6.4 to 7.0, so that the pH rises to the same or higher value by mixing the plaster and saliva, the aggregation of sodium polyacrylate begins, and the formation of a coating film also occurs. Promoted. However, excessive acidity is too intense to irritate the mouth, and tooth enamel also demineralizes, so it cannot be made too strong. Therefore, the liquid pH of saliva is 6.4 to 7.0, mainly to prevent demineralization of enamel and aggregation of sodium polyacrylate in the stored plaster, The pH of the dentifrice plaster is about 5.5 to 7.0, preferably 6.0.
It is necessary to be about 6.5. PH of this toothpaste body
By setting the pH to 5.5 to 7.0, more preferably 6.0 to 6.5, the pH of the conventional toothpaste is 8 to 9 and the proliferation of bacteria is encouraged, whereas the toothpaste of the present example is In the pH range, the growth of the bacteria is suppressed, and the bacteria are gradually removed by the physical cleaning action, so that it can be used safely. An organic acid or an inorganic acid can be used for the pH adjustment. However, it is preferable to use a carboxyvinyl polymer which is a water-soluble polymer which shows an acidic solution when dissolved in water. This is because the adhesiveness is increased and has a kind of glue function, which can promote the ability to form and retain the film of sodium polyacrylate. If the addition amount is too small, the effect cannot be obtained and the polishing effect is hindered, so that the polishing action is inhibited. Therefore, the amount is preferably about 0.005 w / w% to 10.0 w / w%, preferably 0.1 w / w% to 3.0 w / w%. w / w%, more preferably around 0.5%.

[Effect] In the dentifrice of the above embodiment,
When brushing teeth with a toothbrush, coral calcium mainly acts as an abrasive, titanium oxide smoothly assists in the polishing strength, and it can remove plaque and tartar attached to teeth without damaging the teeth themselves Becomes Also, coral-derived calcium is a composite of calcium carbonate and magnesium carbonate, etc., and the particles themselves are porous, and the particle size is 8 to 10 μ, which is finer than the conventional abrasive particle size of 20 μ. Can be enhanced in lubrication.
As a matter of course, as long as it has the same effect as having the same particles as coral calcium, it may be artificially changed to a material mainly composed of calcium carbonate having a composition equivalent to that of coral calcium. Next, sodium polyacrylate dissolved in water dissociates sodium ions and supercharged polyvalent ions, so they repel each other and extend linearly, occupying a large space and increasing. It shows a viscous effect and simultaneously covers the teeth. Then, by the action of divalent or higher ions (calcium and magnesium) derived from coral calcium, the film becomes cloudy and deposits to form a coating, which complements the white coat of titanium oxide teeth, resulting in the beauty of the teeth themselves. It becomes possible to form a white decorative film.
Furthermore, by adding a carboxyvinyl polymer,
It is coated so as to increase adhesion and stick to teeth due to cloudiness and deposition. Further, by providing inorganic ions such as calcium and magnesium to the surface of the tooth in the form of a film, there is an advantage that a missing portion (cavity) of the tooth is supplemented. The coating is based on the salivary fluid (pH
6.4-7.0) and can be used with confidence because it is gradually removed by the physical cleaning action. Furthermore, since the toothpaste body is weakly acidic, the pH of the conventional toothpaste body is 8 to 9 and the alkalinity of the toothpaste body promotes the growth of bacteria. Then the breeding of bacteria is suppressed. In addition, by blending a fragrance (cinnamon, peppermint oil, spearmint oil, etc.) or a deodorant (clob extract, pentagon extract, etc.) into the formulation, the effect is ensured, and It is possible to have sustainability. Similarly, anti-inflammatory agents (dihydrocholesterine, glycyrrhizin, allantoin), anti-plasmin agents (tranexamic acid), tissue activators (hinokitiol,
Copper chlorophyllin sodium)
), It is possible to enhance its effect and sustainability.

[Examples] The in vitro effects of the examples were specifically confirmed in comparison with comparative examples. First, in order to examine the effects of adding coral calcium and a carboxyvinyl polymer, Comparative Examples 1 and 2 are compared with Examples 1 and 2. The compositions other than the circles are the compositions of generally available dentifrices.

[Comparative Example 1] ○ Kaolin ----------------- 5.0 w / w% ○ Titanium oxide --------------- 3.0w / w% glycerin -------------- 25.0w / w% fragrance ---------------------- 1.0w / w% ethyl parahydroxybenzoate --- 0.01w / w% purified water -------------------- qs

[0013]

[Example 1] ○ Coral calcium 30.0 w / w% (3.0 w / w% to 60.0 w / w%) ○ Kaolin ----------- ------ 5.0w / w% (3.0w / w% to 50.0w / w%) ○ Titanium oxide --------------- 3.0w / w% (0.5w /w%~20.0w/w%) Glycerin -------------- 25.0w / w% ○ Sodium polyacrylate--0.5w / w% (0.01w / w% ~ 3.00 (w / w%) Fragrance --------------------- 1.0w / w% Ethyl parahydroxybenzoate --- 0.01w / w% Purified water ---- ---------------- suitable amount

[Example 2] ○ Coral calcium ---------- 30.0 w / w% (3.0 w / w% to 60.0 w / w%) ○ Kaolin --------- --------- 5.0w / w% ○ Titanium oxide ----------------- 3.0w / w% (0.5w / w% ~ 20.0w / w %) Glycerin 25.0w / w% ○ Sodium polyacrylate-0.5w / w% (0.01w / w% ～ 3.00w / w%) ○ Carboxy Vinyl polymer --- 0.3w / w% (0.01w / w% ~ 2.00w / w%) Fragrance ----------------------- 1.0w / w% Ethyl parahydroxybenzoate --- 0.01 w / w% Purified water --------------------- Appropriate amount

Here, the operation and effect of the above-mentioned Comparative Examples 1 and 2 and Examples 1 and 2 were compared and examined using the following test methods. Test method: The dentifrices of Comparative Example 1, Comparative Example 2, Example 1, and Example 2 and a commercially available whitening dentifrice as a control were used as controls. The ph was the same in Comparative Examples 1 and 2 as in the prior art. Comparative Example 1 was 7.5, Comparative Example 2 was slightly higher, about 8, and Example 1 was 6.5, and Example 2 was about 6.0. . First, a slide sample was prepared by rubbing each toothpaste 50 times with a toothbrush using a toothbrush as a test sample. Attach the above treated slide glass to the Reinatsu improved cleaning test equipment with 3 pieces per batch, add 700 ml of purified water, 30 ± 1 ℃
For 3 minutes with stirring. Thereafter, the slide glass was taken out, and after being dried, it was immersed in a beaker containing 500 ml of a phosphate buffer having the same pH 6.0 as saliva while standing on a slide glass stand. After 1, 2 and 3 hours of immersion, take out the slide glass, completely dissolve the remaining coat using 100 ml of purified water, put it in a colorimetric tube (inner diameter 25.5 mm, length 250 mm), and use a white background against black paper Were visually compared, and the degree was judged by three persons. In the judgment, the control of the commercially available whitening coat dentifrice was scored in the following evaluations, and the superiority was compared by the total score. Also, 550n of each liquid
The absorbance at m was measured.

Evaluation Judgment: (1) Clearly dark (clearly superior) ------ 2 (2) Slightly dark (somewhat superior) -------------- 1 (3 ) Little difference ---------------- 0 (4) Somewhat thin (somewhat inferior) -------------- -1 (5) Clearly thin (clearly inferior) ------ -2

Test results: Table 1 in FIG.
(Result 1) and the graph of FIG. 2 (Result 2). As shown in Table 1 (result 1) of FIG. 1, in the evaluation by visual observation, the coating agent of Comparative Example 1 was clearly poor in the remaining immersion from the first hour of immersion, and the same results were obtained up to three hours later. Met.
Comparative Example 2 was almost equal to or less than the control. On the other hand, in Example 1, as compared with the control, the adhesion and the residual property of the coating agent were good, and the same good results were shown from the first hour to the third hour of immersion. Example 2 showed more excellent results than Example 1 in terms of persistence as well as adhesion and remaining properties of the coating agent. Also,
As shown in the graph of FIG. 2 (Result 2), the results of Examples 1 and 2 clearly show superiority to Comparative Examples 1 and 2 in the evaluation judgment based on the light transmittance. In particular, Example 2 shows that
It was demonstrated to be clearly superior in all aspects of sustainability.

Next, Comparative Examples 3 and 4, and Example 3
And a comparison with Example 4.

[Comparative Example 3] ○ Titanium oxide ---------------- 5.0 w / w% glycerin ----------------- 30.0w / w% xylitol ---------------- 0.7w / w% sodium chloride -------------- 4.8w / w% Glycyrrhizin -------------- 0.25w / w% Fragrance ------------------------ 1.2w / w% Ethyl paraoxybenzoate ---- 0.01w / w% Purified water ---------------------- Suitable amount

Comparative Example 4 Titanium oxide ---------------- 5.0 w / w% glycerin ----------------- 30.0w / w% ○ Sodium polyacrylate ---- 0.8w / w% xylitol ----- 0.7w / w% sodium chloride ----- --------- 4.8w / w% glycyrrhizin -------------- 0.25w / w% fragrance --------------- --------- 1.2w / w% ethyl paraoxybenzoate ---- 0.01w / w% purified water --------------------- -Appropriate amount

Example 3 Coral Calcium 30.0 w / w% (3.0 w / w% to 60.0 w / w%) Titanium oxide --------- ------ 5.0w / w% (3.0w / w% ~ 60.0w / w%) Glycerin --------------- 30.0w / w% ○ Sodium polyacrylate -0.8w / w% (0.01w / w%-3.00w / w%) Xylitol ------------- 0.7w / w% Sodium chloride -------- --- 4.8w / w% glycyrrhizin ----------- 0.25w / w% fragrance --------------------- 1.2w / w% ethyl parahydroxybenzoate-0.01w / w% purified water ------------------- qs

[Example 4] ○ Coral calcium --------- 30.0 w / w% (3.0 w / w% to 60.0 w / w%) ○ Titanium oxide --------- ------ 5.0w / w% (3.0w / w% ~ 60.0w / w%) Glycerin --------------- 30.0w / w% ○ Sodium polyacrylate -0.8 w / w% (0.01 w / w% to 3.00 w / w%) ○ Carboxyvinyl polymer-0.5 w / w% xylitol -------------- 0.7 w / w% sodium chloride ------------ 4.8w / w% glycyrrhizin ------------ 0.25w / w% fragrance ---------- ------------ 1.2w / w% ethyl parahydroxybenzoate-0.01w / w% purified water -------------------- Appropriate amount

Here, the above Comparative Examples 3 and 4
And the effects of Example 3 and Example 4 were compared using the following test methods. Test method: The dentifrices of Comparative Example 3, Comparative Example 4, Example 3, and Example 4 and a commercial whitening dentifrice as a control were used as controls. The ph of Comparative Example 3 and Comparative Example 4 was the same as that of the related art. Comparative Example 3 was about 7.5, Comparative Example 4 was about 8, and Example 3 was about 6.5 and Example 4 was about 6.0. Subject: Age 22-30 Male (all without allergies) Each subject was given a dentifrice as a control plaster and had them brush their teeth for 3 minutes using the usual brushing method. Was determined for whiteness. Four hours after the meal, one toothpaste was distributed to the same subject, and each toothbrush was similarly brushed. A commercially available whitening dentifrice as a control was used as a control by three judges, and the coating effect of each test dentifrice was judged based on the judgment result of the control according to the following judgment criteria.

[0025]

Test results: The test results are shown in Table 2 of FIG. As shown in Table 2 of FIG. 3, Comparative Example 3 had a total score of -1 point and an average score of -0.33 for the three judges, indicating a result slightly inferior to the control, and Comparative Example 4 was completely different from the control. Equivalent effect was shown. In contrast, in Example 3, two out of three judges judged that the whiteness was superior to the control, and the total score was 3 points and the average score was 1.00.
Also, in Example 4, all judges judge that they are slightly better than the control, and two of them judge that they obviously win. The total score is 5 points, and the average score is 1.67.
About twice the evaluation of Example 3 was obtained. From the above results, it can be confirmed that Examples 3 and 4 can clearly obtain the whitening effect of the teeth and have the effect of assisting the whiteness of the teeth as compared with Comparative Example 3, Comparative Example 4, and the control. Was.

It is apparent that the present invention is not limited to the above-mentioned embodiment unless the characteristics of the present invention are impaired. For example, it is substantially equivalent to natural coral calcium, that is, artificially prepared calcium carbonate. It is a matter of course that a substance to which an active ingredient of coral calcium mainly composed of the above is added may be used.

[0028]

According to the first aspect of the present invention, a whitening composition containing titanium oxide or kaolin as a whitening component, sodium polyacrylate as a film-forming agent, and coral calcium as a film-forming auxiliary and an abrasive. -Since it is a toothpaste, it has an abrasive effect, and at the same time, titanium oxide and kaolin, which were conventionally only used as abrasives, were coated with a sodium polyacrylate film with coral calcium interposed on the teeth. The effect of extending the whiteness of the tooth and fixing inorganic ions such as calcium and magnesium on the surface of the tooth in the form of a coating to replenish the missing part of the tooth (cavities) is obtained. According to the second aspect of the present invention, since the whitening coat dentifrice is obtained by adding a carboxyvinyl polymer as a film auxiliary to the first aspect, the whitening component is clouded and deposited by adding the carboxyvinyl polymer. Is more reliably adhered to the teeth, and the effect of improving the film-forming ability and the film-retaining ability is obtained. According to the third aspect of the present invention, in the whitening-coat dentifrice according to the first or second aspect, the pH of the plaster of the dentifrice is in the range of 5.5 to 7.0.
Aggregation of sodium polyacrylate in the plaster is slow, and the pH of saliva is 6.4-7.0.
The pH becomes the same or rises, and the coagulation reaction begins to coat the teeth due to cloudiness and deposition. In addition, since this coating is gradually removed by the physical cleaning action, it can be used safely. Furthermore, since the toothpaste body is weakly acidic, the pH of the conventional toothpaste body is 8 to 9 and the propagation of bacteria is promoted by the alkalinity, whereas the pH range of the toothpaste body of this embodiment is promoted. This has the effect of suppressing the growth of bacteria.

[Brief description of the drawings]

FIG. 1 is a table showing visual test results of Examples 1 and 2 of the present invention and Comparative Examples 1 and 2.

FIG. 2 is a graph showing test results of Examples 1 and 2 of the present invention and Comparative Examples 1 and 2 based on light transmittance.

FIG. 3 is a diagram showing Table 2 of test results by visual observation of Examples 3 and 4 of the present invention and Comparative Examples 3 and 4.

Claims (3)

[Claims] 1. A whitening dentifrice comprising a titanium oxide or kaolin as a whitening component, sodium polyacrylate as a coating component, and coral calcium as a coating aid and an abrasive. . 2. The whitening-coat dentifrice according to claim 1, wherein a carboxyvinyl polymer is added as a film auxiliary. 3. The whitening-coat dentifrice according to claim 1, wherein the pH of the dentifrice paste is in the range of 5.5 to 7.0.