TWI626949B - Denture detergent - Google Patents

Abstract

A main object of the present invention is to provide a denture cleaning agent which suppresses the formation of a state in which bubbles are superimposed and aggregated on the water which has been put into the denture detergent, and the above problems can be solved by In the denture detergent containing a foaming agent, an anionic surfactant, menthol, and cerium oxide, the pH at which 2.65 g of the denture detergent was dissolved in 150 ml of water at 25 ° C was adjusted to 8 to 11.

Description

Denture cleaner Technical field

The present invention relates to a denture detergent which suppresses a state in which bubbles are superimposed and aggregated on the water which has been put into the denture detergent. Furthermore, the present invention relates to a denture cleaning method using the denture detergent.

Background technique

The denture is used in the case of a tooth defect and in accordance with the state of the tooth defect, and uses various forms such as a full denture and a removable partial denture. The denture is likely to adhere to bacteria, biofilms, and other deposits. If it is left unwashed, it will not only cause bad breath, but also cause one of the causes of oral diseases such as sputum and periodontal disease. Therefore, as a ring of oral health care, it is indispensable to wash and keep the denture clean. In the cleaning by the toothbrush, bacteria or dirt adhering to the denture cannot be sufficiently removed, and therefore, it is important to wash with the denture detergent. Especially in the case of additional fittings or retractable partial dentures which often use complicated shapes, cleaning is difficult, and a technique for achieving an excellent washing effect even for such dentures is currently reviewed.

In general, the denture cleaning using the denture detergent is carried out by dipping the denture in a denture washing water prepared by putting the denture detergent into water. Conventionally, denture detergents have been widely used in the following types of foamed tablets, that is, by containing a surfactant and a foaming agent, they are foamed in water when they are put into water, and the bubbles are superposed and accumulated on the upper surface of the water. In the denture detergent type denture detergent, it is designed to improve the detergency by combining the chemical detergency using the interfacial activity with the physical detergency using the foaming action. When the denture detergent is put into water, it is foamed in water and the surfactant is dissolved in water. Therefore, the bubbles are superposed and accumulated on the water (hereinafter, the above-mentioned state may be referred to as "bubble"). If the accumulated amount reaches the maximum amount, the state is maintained for a certain period of time, and as the washing is completed, the bubble is gradually disappeared, and soon, the foam on the water surface completely disappears.

In the denture detergent type of the foamed lozenge type, it is required to have an excellent effect of forming a state in which bubbles are superposed on the upper surface of the water which has been put into the denture detergent. In order to improve the cleaning effect of the denture detergent type of the foamed lozenge type, various improvements have been made. For example, it has been disclosed in the denture detergent type of the foaming lozenge by 3:7-7: When the weight ratio of 3 is blended with polyvinylpyrrolidone and polyethylene glycol, the foaming power can be increased (refer to Patent Document 1). Accordingly, the good foaming effect is related to the improvement of the cleaning effect of the denture detergent, and further, it is effective in improving the visual satisfaction of the user.

However, by enhancing the effect of forming the foam, an excellent washing effect can be achieved, on the other hand, there is a foam overflowing from the container, or washing the meaning The tooth behind the tooth contains the dirty foam from the denture attached to the denture and gives the user a feeling of resentment. In order to avoid such problems, a technique for suppressing the amount of foaming to constitute a moderate amount of foam is required. Having said that, however, the denture detergent must maintain a sufficient cleaning effect, and the technique for balancing the effect of moderate foaming with the excellent washing action is currently unknown.

Against the background of such a conventional technique, it is desired to develop an expanded denture detergent which can exhibit an excellent cleaning effect while suppressing the amount of foaming.

Advanced technical literature Patent literature

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-50323 Bulletin

Summary of invention

SUMMARY OF THE INVENTION A primary object of the present invention is to provide a denture detergent which can suppress foaming. Furthermore, another object of the present invention is to provide a method of cleaning dentures using the denture detergent.

In order to solve the above problems, the inventors have found that in the denture detergent containing a foaming agent, an anionic surfactant, cerium oxide, and menthol, when the denture detergent is dissolved in water, The pH is weakly alkaline and inhibits foaming. Moreover, although such a denture detergent can suppress foaming, it has a sufficient denture cleaning effect. Again, send It has been found that the above-mentioned denture cleaning agent can prolong the disintegration time after being put into water, so that it can be foamed for a long time, and the washing action by foaming continues, and also visually Give the user an impression of excellent cleaning. The present invention has been completed on the basis of these findings and the results of repeated studies. That is, the present invention provides a denture detergent according to the aspect disclosed below and a method of washing dentures using the denture detergent.

Item 1. A denture detergent comprising a foaming agent, an anionic surfactant, menthol and cerium oxide, and a pH at which 2.65 g of the denture detergent is dissolved in 150 ml of water at 25 ° C. It is 8~11.

Item 2. The denture detergent according to Item 1, wherein the anionic surfactant is contained in an amount of 5 to 100 parts by weight per 100 parts by weight of the menthol.

Item 3. The denture detergent according to Item 1 or 2, wherein the anionic surfactant is contained in an amount of 5 to 100 parts by weight per 100 parts by weight of the cerium oxide.

The denture detergent according to any one of items 1 to 3, which contains 10 to 40% by weight of sodium carbonate.

The denture detergent according to any one of items 1 to 4, which contains an anionic surfactant of 1.5 to 3% by weight.

Item 6. The denture detergent according to any one of items 1 to 5, which is a removable partial denture.

Item 7. A method of washing dentures by immersing dentures in water which has been placed in a denture detergent according to any one of items 1 to 6.

Since the denture detergent of the present invention can suppress the foaming when dissolved in water, there is no possibility that the foam overflows from the container or is taken out by the impregnation. In the case of a denture, the foam from the denture is attached to the denture and the user's mood is impaired. Moreover, although the denture detergent of the present invention can suppress foaming, it exhibits a sufficient washing effect. Since the denture detergent of the present invention can prolong the disintegration time when it is put into water, the washing action is continued and the user can be given the impression of improving the washing effect.

Moreover, in the denture, the removable partial denture has the following structural characteristics, namely: having an accessory, and often adopting a complicated structure. On the other hand, if the denture detergent of the present invention exhibits weak alkalinity when dissolved in water, there is no corrosion of the fitting when the denture having the fitting such as the removable partial denture is washed. . Moreover, when the denture detergent of the present invention is in the form of a tablet, the disintegration time can be prolonged and ensured, and accordingly, the time during which the carbon dioxide bubbles come into contact with the denture becomes longer, and the washing effect can be further improved. Therefore, even in the case of a structure which is complicated and difficult to clean as a removable partial denture, an excellent washing effect can be exerted. Accordingly, the denture detergent of the present invention has the advantages of suppressing the corrosion of the fitting of the removable partial denture, the excellent cleaning effect for the removable partial denture, and the like, and particularly can be suitably used as the removable partial denture. use.

Form for implementing the invention

Denture detergent

The denture detergent of the present invention is a denture detergent containing a foaming agent, an anionic surfactant, menthol and cerium oxide, and The pH of the 2.65 g of the tooth detergent dissolved in 150 ml of water at 25 ° C was 8-11. Hereinafter, the denture detergent of the present invention will be described in detail.

The foaming agent to be used in the denture detergent of the present invention is not particularly limited, and a general user of the denture detergent (i.e., a carbon dioxide which can be produced in water) can be widely used.

Specifically, the foaming agent may, for example, be a combination of at least one of a carbonate, a hydrogencarbonate, and a double salt thereof (hereinafter sometimes also referred to as a carbonic acid compound) and an acid. The carbonate is not particularly limited, and examples thereof include alkali metal carbonates such as sodium carbonate and potassium carbonate. The hydrogencarbonate is not particularly limited, and examples thereof include alkali metal hydrogencarbonate such as sodium hydrogencarbonate or potassium hydrogencarbonate. The double salt of the carbonate and the hydrogencarbonate is not particularly limited, and examples thereof include sodium dicarbonate and the like. These carbonic acid compounds may be used alone or in combination of two or more. Further, the acid is not particularly limited, and examples thereof include organic acids such as citric acid, tartaric acid, fumaric acid, malic acid, maleic acid, gluconic acid, succinic acid, salicylic acid, and oxalic acid; and phosphoric acid and amines. A mineral acid such as a sulfonic acid or the like. These acids may be used alone or in combination of two or more.

The carbonic acid compound constituting the foaming agent may, for example, be preferably an alkali metal hydrogencarbonate, more preferably sodium hydrogencarbonate. Further, the acid constituting the foaming agent may, for example, be an organic acid, more preferably citric acid or malic acid.

In the foaming agent, the ratio of the carbonic acid compound to the acid is not particularly limited as long as the two are reacted in water, and the ratio of the carbonic acid compound to the acid is not particularly limited. For example, the carbonic acid compound is usually 20 per 100 parts by weight. ~120 The parts by weight are preferably 30 to 100 parts by weight, more preferably 30 to 95 parts by weight. Further, when the hydrogen peroxide is used as the foaming agent, the ratio of the hydrogencarbonate to the acid may be, for example, the hydrogencarbonate is usually 20 to 120 parts by weight, and preferably 30 to 100 parts by weight, more preferably 100 to 100 parts by weight, more preferably It is 30 to 95 parts by weight, particularly preferably 70 to 95 parts by weight.

The content of the foaming agent (the total amount of the carbonic acid compound and the acid) in the denture detergent of the present invention is not particularly limited as long as it can exert a foaming action when the denture is washed. For example, for example, : 10 to 80% by weight, and preferably 15 to 75% by weight, more preferably 20 to 70% by weight. Further, when the hydrogen peroxide is used as the foaming agent, the content of the foaming agent (the total amount of the hydrogencarbonate and the acid) may, for example, be 10 to 80% by weight, and preferably 15 to 75% by weight, more preferably It is preferably 20 to 70% by weight, particularly preferably 20 to 40% by weight.

The anionic surfactant to be used in the denture detergent of the present invention is not particularly limited, and a general user of the denture detergent can be widely used.

Specifically, examples of the anionic surfactant include an alkyl sulfate, an alkyl sulfonate, an α-olefin sulfonate, an alkylbenzenesulfonate, and the like. Among these, from the viewpoint of exhibiting a more excellent washing action, an alkyl sulfate or an alkyl sulfonate is preferable, and an alkyl sulfate is more preferable.

The carbon number of the alkyl group of the alkyl sulfate is not particularly limited as long as it has an interfacial activity. For example, it may be, for example, 10 to 18, and preferably 12 to 16, more preferably 12 to 14. Further, the alkyl group may be either linear or branched, but it is preferably linear. Also, the salt can be enumerated as follows: A water-soluble salt such as sodium or potassium, and a suitable salt can be exemplified by a sodium salt. In the above-mentioned alkyl sulfate, from the viewpoint of exhibiting a more excellent washing action, for example, an octyl sulfate, a lauryl sulfate, a myristyl sulfate, a palmitate sulfate is preferable. The stearyl sulphate or the oleyl sulfate is preferably a lauryl sulfate or a myristyl sulfate, more preferably a lauryl sulfate, and particularly preferably sodium lauryl sulfate.

The carbon number of the alkyl group of the alkyl sulfonate is not particularly limited as long as it has an interfacial activity, and is the same as the carbon number of the alkyl group constituting the alkyl sulfate. Further, the type of the salt constituting the alkyl sulfonate may be, for example, the same as the alkyl sulfate. In the alkyl sulfonate, the octyl sulfonate, the lauryl sulfonate, and the myristyl sulfonate are preferably used from the viewpoint of exhibiting a more excellent washing action. More desirable is lauryl sulfonate, and particularly preferred is sodium lauryl sulfonate.

In the denture detergent of the present invention, the anionic surfactant may be used singly or in combination of two or more.

The content of the anionic surfactant in the denture detergent of the present invention is not particularly limited as long as it has an interfacial activity. For example, it is, for example, 0.5 to 4% by weight, and preferably 1 to 3.5% by weight. More preferably, it is 1.5 to 3% by weight, and further preferably 1.5 to 2.3% by weight.

The menthol contained in the denture detergent of the present invention has an effect of suppressing the accumulation of bubbles formed by the foaming agent and the surfactant. In addition, by containing menthol, it can bring the refreshing feeling in the mouth of the installer when the denture has been cleaned, and has a practical feeling of washing effect. use.

In the denture detergent of the present invention, any one of a d body, a l body, and a dl body can be used for the menthol. In addition, menthol can also be used in the form of essential oils. The essential oil containing menthol is not particularly limited, and examples thereof include: spearmint oil, peppermint oil, peppermint oil, and mint white oil.

The ratio of the content of menthol in the denture detergent of the present invention can be exemplified by the ratio of the inhibitory effect of the foaming amount and the sufficient cleaning effect of the denture detergent. The content of the menthol (100 parts by weight of the menthol when using the essential oil) of the surfactant is usually 5 to 100 parts by weight, and preferably 10 to 65 parts by weight, more preferably 21.7 to 43.5 parts by weight.

The content of menthol in the denture detergent of the present invention can be set according to the blending ratio with the anionic surfactant, and is, for example, usually 0.1 to 1.5% by weight, and preferably 0.25 to 1.5% by weight. More preferably, it is 0.5 to 1.5% by weight, particularly preferably 0.5 to 1% by weight.

Further, similarly to the menthol, the cerium oxide contained in the denture detergent of the present invention has an effect of suppressing the accumulation of bubbles by the foaming agent and the surfactant. The so-called cerium oxide is a general term for cerium oxide or a substance composed of cerium oxide.

The content ratio of cerium oxide in the denture detergent of the present invention can be enumerated, for example, as compared with the viewpoint of more effectively exhibiting the effect of suppressing the amount of foaming and maintaining a sufficient washing effect of the denture detergent. The content of the anionic surfactant 100 parts by weight of cerium oxide is usually 5 to 100 parts by weight, and preferably 21.7 to 78.3 parts by weight, more preferably 43.5 to 78.3 parts by weight.

The content of cerium oxide in the denture detergent of the present invention can be set according to the blending ratio with the anionic surfactant, and may be, for example, usually 0.1 to 3% by weight, and preferably 0.5 to 2% by weight. More preferably, it is 0.8 to 2% by weight, and particularly preferably 1 to 1.8% by weight.

In the denture detergent of the present invention, when the content of the anionic surfactant per 100 parts by weight of the menthol is 5 to 100 parts by weight, and preferably 10 to 65 parts by weight, more preferably 21.7 to 43.5 parts by weight, and The content of cerium oxide is from 5 to 100 parts by weight, and preferably from 21.7 to 78.3 parts by weight, more preferably from 43.5 to 78.3 parts by weight, to exhibit a more pronounced foam suppressing effect.

The denture detergent of the present invention exhibits a pH of 8 to 11 when dissolved in water. Here, the pH value means that 2.65 g of the denture detergent of the present invention is powdered and placed in 150 ml of water at 25 ° C, and allowed to stand for 10 seconds, and it is visually confirmed that the bubble has disappeared, and after stirring The pH of the solution measured.

When the denture detergent of the present invention contains the above-mentioned respective components and the pH of the solution to be dissolved is in the above range, it is possible to prevent the foam from overflowing from the container due to excessive foaming, or the contaminated foam is attached to the washing. The problem of the latter denture can achieve an appropriate amount of foaming which does not hinder the washing effect of the denture using the foaming agent and the surfactant, and can also satisfy the user's visual sense of washing effect.

The pH when the denture detergent of the present invention is dissolved in water can be, for example, preferably pH 8 to 10, more preferably pH 8~, from the viewpoint of more clearly exhibiting the effects of the present invention. 9.5.

In the present invention, in order to make the solution of the denture detergent present before The pH value can be adjusted by adding a pH adjuster as needed to prepare a denture detergent. The pH adjuster can be appropriately selected from those conventionally known, and specific examples thereof include inorganic acid salts such as carbonates and hydrogencarbonates; citrates, acetates, ascorbates, gluconates, succinates, and tartaric acid. An organic acid salt of a salt, lactate, pyrophosphate, fumarate, malate or the like. Examples of the salt include an alkali metal salt such as sodium or potassium, and an alkaline earth metal salt such as calcium. Preferred examples thereof include a sodium salt and a potassium salt. Specific examples of the pH adjusting agent include sodium carbonate, sodium hydrogencarbonate, potassium carbonate, sodium citrate, sodium acetate, sodium L-ascorbate, potassium carbonate, calcium carbonate, sodium gluconate, monosodium succinate, and L-. Sodium tartrate, disodium succinate, sodium DL-tartrate, sodium lactate, monosodium fumarate, sodium DL-malate, and the like. The pH adjuster used in the denture detergent of the present invention may, for example, be sodium carbonate, sodium hydrogencarbonate, citric acid or malic acid, and more preferably, sodium carbonate or citric acid.

The content of the pH adjuster in the denture detergent of the present invention can be appropriately set such that the denture detergent exhibits the aforementioned pH value when dissolved in water, and can be exemplified by usually 10 to 70% by weight, and preferably 20 to 70. The weight % is more preferably 25 to 70% by weight. Further, as an example, the content of the pH adjuster in the case of using sodium carbonate may be, for example, usually 10 to 40% by weight, and preferably 20 to 40% by weight, more preferably 20 to 35% by weight.

In addition to the above-mentioned components, the denture detergent of the present invention may contain a chelating agent, an enzyme, a coloring material, a sweetener, a deodorant, and a foaming stabilizer, as needed, without impairing the effects of the present invention. , preservatives, bleach, antibacterial. Surfactants, preservatives, surfactants other than anionic surfactants, binders, lubricants, excipients, disintegrators, fluidizers, etc. Additives.

The denture detergent of the present invention may be in the form of a solid of a tablet, a granule, a granule or the like. However, since the type of denture detergent which settles when placed in water, the bubble of carbon dioxide generated in the water can be physically and dentured. The contact and the cleaning effect are improved. Therefore, in the above dosage form, it is also preferable to be in the form of a tablet. Further, in the case of a tablet, the time during which the bubbles of carbon dioxide come into contact with the denture can be prolonged by the prolongation of the disintegration time, and as a result, the cleaning effect of the denture can be further improved. In the case of a tablet form, the weight of each tablet should be set to the amount necessary for one-time denture cleaning.

The denture detergent of the present invention is produced by mixing the above components and other additives as needed, and formulating them into a desired shape.

When the denture constituting the object to be cleaned is allowed to coexist in the state in which the denture detergent of the present invention is added to water, bubbles of carbon dioxide using the foaming agent are generated simultaneously with the dissolution of the component, and the bubble and the denture are utilized. The physical stimulus of the contact is washed with the interdental action of the aforementioned anionic surfactant to wash the denture.

The water to be used for washing the denture using the denture detergent of the present invention is not particularly limited, and examples thereof include tap water, purified water, distilled water, and physiological saline.

When the denture is washed by using the denture detergent of the present invention, the denture detergent of the present invention may be added after immersing the denture in water, or the denture may be immersed in water after adding the denture detergent of the present invention. .

Moreover, in the washing of the denture, the denture detergent of the present invention and water The ratio can be appropriately set according to the composition of the denture detergent of the present invention, the degree of soiling of the denture constituting the object to be cleaned, and the like. For example, the denture detergent can be usually made 1 with respect to 100 parts by weight of water. ~10 parts by weight, and preferably 1 to 5 parts by weight. More specifically, in the washing of the denture once, 100 to 200 mL of water can be prepared, and 1 to 20 g of the denture detergent of the present invention is added thereto, preferably 1 to 10 g, more preferably 1 ~5g.

The temperature of the water when the denture is washed can be made 5~30 °C. Further, the time during which the denture is immersed in the water to which the denture detergent of the present invention has been added is, for example, usually 5 minutes to 12 hours, more preferably 5 minutes to 8 hours, and more preferably, usually 5 minutes to 6 hours.

The type or shape of the denture to be washed by the denture detergent of the present invention is not particularly limited, and can be widely applied regardless of the difference of the complete denture, the removable partial denture or the like. In the denture detergent of the present invention, since it is adjusted to be pH 8 to 11 when dissolved in water, there is no possibility of corroding the metal even when the removable partial denture having the fitting is washed. Further, the removable partial denture usually has a complicated shape, but even for such a shape, a sufficient washing effect can be exerted. Therefore, the denture detergent of the present invention is particularly suitable for use as a removable partial denture.

2. Denture cleaning method

The denture cleaning method of the present invention is a method of washing dentures using the aforementioned denture detergent. That is, the denture cleaning method of the present invention is a method in which a denture is immersed in water which has been placed in the denture detergent to wash the denture. A specific embodiment of the denture cleaning method of the present invention is as disclosed in the column "1. Denture Detergent" described above.

Example

The embodiments and the like are shown below, and the present invention will be specifically described. However, the invention is not limited to these.

A tablet-shaped denture detergent having the composition shown in Tables 1 and 2 was prepared. Specifically, each of 2.65 g of a tablet-shaped denture detergent was prepared by ingot molding a composition in which the components shown in Tables 1 and 2 were mixed at 7 MPa using a mold having a diameter of 25 Φ. In addition, in Tables 1 and 2, "sodium carbonate (light)" means powdery sodium carbonate, and "sodium carbonate (dense)" means "sodium carbonate (light)" granule.

Measurement of the amount of foam

75 mL of distilled water at 25 ° C was injected into a measuring cylinder having a capacity of 200 mL, and one of the denture detergents prepared was gently put into operation. Then, the amount (bubble amount) of the bubble layer formed by accumulating the bubbles on the upper surface of the water by superimposing the bubbles was measured. The measured maximum foaming amount is shown in Tables 1 and 2.

Further, the effect of reducing the bubble generation is expressed by % in Table 2 in terms of the results evaluated by the following formula (1).

Decrease effect of foaming (%) = 100 × (maximum foaming of the comparative example - maximum foaming of the same amount of anionic surfactant, menthol and cerium oxide as in the comparative example) / maximum of comparative examples Accumulation bubble...(1)

Disintegration time of tablets

75 mL of distilled water at 25 ° C was injected into a measuring cylinder having a capacity of 200 mL, and one of the denture detergents prepared was gently put into operation. Then, the time until the tablet disintegrates is measured. The disintegration of the tablet was confirmed by visual observation, and the time until the shape of the tablet could not be confirmed was made into a disintegration time. Again, self-real The disintegration time of the denture detergent of the comparative example was subtracted from the disintegration time of the denture detergent of the comparative example, and the disintegration time difference was calculated, and it evaluated based on the following criteria.

[evaluation benchmark]

---: The disintegration time of the tablet is shortened

--: The extension time is 10 seconds or more and less than 50 seconds.

-: The extension time is 50 seconds or more and less than 100 seconds.

+: The extension time is 100 seconds or more and less than 150 seconds.

++: The extension time is 150 seconds or more and less than 170 seconds.

+++: The extension time is 170 seconds or more.

pH determination

150 mL of distilled water at 25 ° C was poured into a measuring cylinder having a capacity of 200 mL, and one of the denture detergents prepared was pulverized and powdered, and allowed to stand for 10 seconds to visually confirm that the bubble had disappeared. Thereafter, after gently stirring, the pH of the solution was measured using a pH meter F52 (Model 9615) (manufactured by Horiba, Ltd.).

Denture cleaning effect

The following method was used to evaluate the washing effect by the scouts in accordance with the following criteria: that, after the denture detergent was put into the cup which had been filled with distilled water (25 ° C), the one-day disposable type was used. The partial denture was placed and allowed to stand for 10 minutes, and then washed with running water to visually confirm the washing effect. Further, in the following criterion, if it is Δ or more, it means that the denture detergent has a cleaning effect which is not practically problematic.

10 people satisfied with the washing effect: ○

8~9 people satisfied with the washing effect: △

Satisfactory cleaning effect is less than 7 people: ×

According to the results shown in Tables 1 and 2, the denture detergents of Examples 1 to 12 which showed a weakly alkaline pH compared with the corresponding Comparative Examples 1 to 12 (the pH values were all neutral) were able to suppress the product. The amount of foam, in addition, the disintegration time of the tablet is also prolonged. On the other hand, the cleaning effect of the denture detergent of each of the examples and the washing effect of the corresponding comparative example did not change, and the denture detergent could be maintained sufficiently. Washing effect, but it can suppress the amount of foaming. Moreover, in the denture detergents of Examples 2 to 11, the effect of suppressing the more excellent foaming amount and the effect of prolonging the disintegration time were confirmed.

In dentures, retractable partial dentures often employ complex structures, and in order to adequately clean their complex structural parts, the time for the carbon dioxide bubbles to physically contact must be extended. On the other hand, as shown in Examples 1 to 12, the denture detergent of the present invention has a long disintegration time of the tablet, and along with this, the time for the carbon dioxide bubbles to physically contact can be prolonged and maintained. It can be said that it is especially suitable for the cleaning of removable partial dentures.

[Prescription example]

The denture detergent (tablet) of the present invention having the composition shown in the following Tables 3 to 5 was prepared. Specifically, a composition in which the components shown in Tables 3 to 5 were mixed was molded at 7 MPa using a mold having a diameter of 25 Φ, whereby each of 2.65 g of a tablet-shaped denture detergent was prepared. For the prepared denture detergent, the pH of the solution was measured in accordance with the method disclosed in the "pH measurement" column described above, and all were in the range of pH 8-11. Further, any of the denture detergents can effectively suppress the amount of foaming, and the disintegration time of the tablet becomes long, and a sufficient washing effect is exerted.

Claims (7)

A denture detergent comprising a foaming agent, an anionic surfactant, menthol and cerium oxide, wherein the anionic surfactant is an alkyl sulfate, an alkyl sulfonate or an α-olefin sulfonate; And the content of the anionic surfactant is from 10.9 to 43.5 parts by weight per 100 parts by weight of the menthol, and the content of the anionic surfactant per 100 parts by weight of the cerium oxide is from 21.7 to 78.3 parts by weight; further, the denture is washed. The pH of the solution 2.65 g dissolved in 150 ml of water at 25 ° C was 8-11. The denture detergent of claim 1, wherein the anionic surfactant is present in an amount of from 21.7 to 43.5 parts by weight per 100 parts by weight of the menthol. The denture detergent of claim 1 or 2, wherein the anionic surfactant is present in an amount of 43.5 to 78.3 parts by weight per 100 parts by weight of the cerium oxide. A denture detergent according to claim 1 or 2 which contains 10 to 40% by weight of sodium carbonate. A denture detergent according to claim 1 or 2 which contains 1.5 to 3% by weight of an anionic surfactant. A denture detergent according to claim 1 or 2, which is a removable partial denture. A method of washing dentures by immersing dentures in water which has been placed in a denture detergent according to any one of claims 1 to 6.