Oral care composition

Abstract

The present invention aims to provide a technology for adhering an oral composition to the user's teeth. [Solution] The oral care composition comprises a base material for a mouthpiece that can be deformed to fit the shape of the user's teeth, and an oral composition contained in the base material.

Description

Technical Field

[0006] , , , ,

[0001] The present invention relates to an oral care composition.

Background Art

[0002] Oral care compositions for preventing the user's tooth decay and periodontal diseases have been developed. For example, Patent Document 1 discloses an oral composition in the form of a troche, gummy, gum, or dentifrice.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] When the dosage form of the oral composition is a troche or gummy, the oral composition is difficult to adhere to the teeth, and there is a risk that the effect of preventing tooth decay and periodontal diseases of the oral composition cannot be obtained as compared with the case where the oral composition is adhered to the user's teeth. Even when the dosage form of the oral composition is gum, there is no hardness to continue adhering to the user's teeth, so it is likely to separate from the user's teeth easily, and there is a risk that the effect of preventing tooth decay and periodontal diseases of the oral composition cannot be obtained. Further, when the dosage form of the oral composition is dentifrice, the user rinses the mouth after brushing teeth, discharging the dentifrice outside the oral cavity, and there is a risk that the effect of preventing tooth decay and periodontal diseases of the oral composition cannot be obtained as compared with the case where the oral composition is adhered to the user's teeth. <00,00026>

[0005] An object of the present invention is to provide a technique for adhering an oral composition to the teeth of a user.

Means for Solving the Problems

[0006] The oral care composition according to one aspect of the present invention is A base material for a mouthpiece that can be deformed to fit the shape of the user's teeth, The material comprises an oral composition contained in the aforementioned substrate. [Effects of the Invention]

[0007] According to the present invention, an oral composition can be made to adhere closely to the user's teeth. [Brief explanation of the drawing]

[0008] [Figure 1] Figure 1 is an external perspective view of the oral care composition according to the embodiment. [Figure 2] Figure 2 is a plan view of the substrate in the embodiment. [Figure 3] Figure 3 shows how the oral care composition according to the embodiment is applied to the user. [Figure 4] Figure 4 is an external perspective view showing the hardened mouthpiece. [Figure 5] Figure 5 is a magnified view of a mouthpiece fitted tightly to the teeth, seen from the front-to-back direction. [Figure 6] Figure 6 is a perspective view of the appearance of the oral care composition according to Modification 1. [Figure 7] Figure 7 is an external perspective view showing the oral care composition according to Modified Example 1, which has a composition layer. [Figure 8] Figure 8 is an enlarged view of the modified oral care composition as seen from the oral care composition side, with the composition covering the teeth. [Figure 9] Figure 9 shows how the oral care composition according to Modification 2 is applied to the user. [Figure 10] Figure 10 shows the oral care composition according to Modification 3 in a state where the user is wearing it. [Figure 11] Figure 11 is a cross-sectional view of the oral care composition according to Modification 4 when it is cut along its longitudinal direction. [Modes for carrying out the invention]

[0009] The embodiments of the present invention will be described below. The embodiments shown below are one aspect of the present invention and do not limit the technical scope of the present invention.

[0010] <Embodiment> The oral care composition according to this embodiment forms a mouthpiece that prevents tooth decay and periodontal disease when attached to the user's teeth. The mouthpiece formed by the oral care composition according to this embodiment prevents tooth decay and periodontal disease when used habitually by the user, and does not include the act of treating tooth decay or periodontal disease. Furthermore, in this embodiment, direction refers to the direction that coincides with the front, back, up, down, left, and right of the user when the oral care composition is attached to the user (hereinafter abbreviated as "attached state"). For example, when the left and right direction is referred to in this application, it refers to the direction that coincides with the left and right of the user when the oral care composition is attached to the user. The front-to-back direction of the oral care composition is also called the width direction of the oral care composition.

[0011] Figure 1 is an external perspective view of the oral care composition 1. As shown in Figure 1, the oral care composition 1 has a substantially rectangular parallelepiped shape. The oral care composition 1 comprises a mouthpiece base 2 that can be deformed to match the shape of the user's teeth and an oral composition 3 contained in the base 2. The oral care composition 1 covers and adheres to the user's teeth when the user bites down with its longitudinal direction aligned in the left-right direction. When the base 2 hardens in this state, the oral care composition 1 can maintain its close adhesion to the user's teeth. Because the oral care composition 1 adheres to the user's teeth, the oral composition 3 contained in the oral care composition 1 adheres to the user's teeth, allowing for dental care. The shape of the oral care composition 1 can be changed as appropriate.

[0012] FIG. 2 is a plan view of the base material 2 in the present embodiment. The base material 2 is a sheet having a substantially rectangular shape. Note that the shape of the base material 2 can be appropriately changed in design. Examples of the raw material of the base material 2 include resins such as poly(meth)acrylate resin, polyolefin resin, polyamide resin, polyester resin, polyether resin, polynitrile resin, polyvinyl resin, cellulose resin, fluororesin, imide resin, and silicone resin, and ceramics such as zirconia.

[0013] The base material 2 may react with the saliva of the user and harden. In this case, when the oral care composition 1 is brought into close contact with the user's teeth, a predetermined amount of saliva adheres to the base material 2, and the base material 2 hardens. Due to the hardening of the base material 2, the oral care composition 1 may become a mouthpiece that adheres to the user's teeth. By the mouthpiece adhering to the user's teeth, the oral composition 3 can be maintained in a state of adhering to the teeth.

[0014] The base material 2 may react with the body temperature of the user and harden. In this case, when the oral care composition 1 is brought into close contact with the user's teeth, the temperature of the base material 2 rises to a predetermined temperature by the transmission of the user's body temperature and hardens. Due to the hardening of the base material 2, the oral care composition 1 may become a mouthpiece that adheres to the user's teeth.

[0015] The oral composition 3 contained in the base material 2 may contain an anti-inflammatory component. By containing an anti-inflammatory component in the base material 2, it is possible to suppress inflammation of the gums caused by periodontal disease, tooth decay, etc. Examples of the anti-inflammatory component contained in the oral composition 3 include saffron root extract, loquat extract, mugwort flower extract, licorice root extract, amakusa flavonoid, phellodendron bark extract, guaiacum zuren, glycyrrhizic acid, glycyrrhizic acid 2K, ammonium glycyrrhizate, glycyrrhetinic acid, stearyl glycyrrhetinate, viola extract, tea flower extract, ascorbyl tetrahexyl decanoate, magnolia extract, bisabolol, phytosphingosine, button extract, etc.

[0016] In addition, the oral composition 3 contained in the base material 2 may contain a bactericidal component. By containing a bactericidal component in the base material 2, periodontal bacteria can be sterilized and periodontal disease can be prevented. Examples of the bactericidal component contained in the oral composition 3 include cetylpyridinium chloride, benzalkonium chloride, benzethonium chloride, decylpyridinium chloride, chlorhexidine salts, triclosan, thymol, isopropylmethylphenol, alkyl diminoethyl glycine hydrochloride, and the like. It is preferable to contain IPMP (isopropylmethylphenol) which has a high bactericidal effect against periodontal bacteria. Since IPMP penetrates into the interior of a biofilm which is a thin layer formed by microorganisms such as bacteria, it is easy to exhibit a bactericidal effect.

[0017] In addition, the oral composition 3 contained in the base material 2 may contain a component that exhibits the effect of whitening the user's teeth. For example, hydrogen peroxide, sodium perborate, urea peroxide, polyphosphoric acid, metaphosphoric acid, titanium oxide, sodium polyphosphate, polyethylene glycol, hydroxyapatite, and the like can be exemplified. By including a component having a tooth whitening effect in the oral composition 3 contained in the base material 2, the teeth can be whitened by regular oral care.

[0018] Next, the method of using the oral care composition 1 will be explained using Figure 3. Figure 3 shows how the oral care composition 1 is placed on the user. Figure 3(A) shows the oral care composition 1 before deformation placed in the user's oral cavity. Figure 3(B) shows the oral care composition 1 after deformation placed in the user's oral cavity. As shown in Figure 3(A), the oral care composition 1 is placed between the teeth 4 on the user's upper jaw and the teeth 5 on the user's lower jaw. When pressure is applied to the oral care composition 1 from above and below by the teeth 4 and 5 while it is placed between the teeth 4 and 5, the oral care composition 1 deforms to conform to the shape of the teeth 5, as shown in Figure 3(B). The deformed oral care composition 1 adheres tightly to the user's teeth 5. In this state, the oral care composition 1 is warmed and hardened by the user's body temperature, or hardened by the adhesion of the user's saliva, becoming a mouthpiece that covers the teeth 5 while adhering tightly to them. The hardness of the base material 2 may be adjusted so that one side of the oral care composition 1 in the thickness direction is more easily deformed. For example, in Figure 3, the upper side of the base material 2 may be made harder than the lower side of the base material 2 to make the upper side of the base material 2 less prone to deformation. In Figure 3, the tooth to which the oral care composition 1 adheres is tooth 5, but tooth 4 may also be used.

[0019] Figure 4 is an external perspective view showing the hardened mouthpiece 6. Since the upper and lower jaw mouthpieces 6 have the same structure, only the lower jaw mouthpiece 6 will be described. As shown in Figure 3, the formed mouthpiece 6 conforms to the surface shape of the teeth 5. While the mouthpiece 6 shown in Figure 4 is shaped to cover all the teeth 5 in the user's lower jaw, the mouthpiece 6 may also be shaped to cover only some of the teeth 5.

[0020] Figure 5 is a magnified view of the mouthpiece 6, which is in close contact with the teeth 5, as seen from the front-to-back direction. The mouthpiece 6 is in close contact with the teeth 5 and the user's gums 7. Since the mouthpiece 6 contains oral composition 3, the anti-inflammatory and antibacterial components contained in oral composition 3 adhere to the teeth 5, preventing periodontal disease and tooth decay. In addition, the whitening components contained in oral composition 3 make it possible to whiten the teeth 5.

[0021] Furthermore, the user may apply the upper jaw oral care composition 1, which adheres to the user's upper jaw teeth 4, and the lower jaw oral care composition 1, which adheres to the user's lower jaw teeth 5, to the user's upper and lower teeth 4 and 5, or the user may use only one of the upper or lower jaw oral care composition 1. When using the upper jaw and lower jaw oral care composition 1 simultaneously, a hard base material 8 may be attached to the outer casing so that the upper and lower mouthpieces 6 do not stick to each other when bitten together, or so that the hardened upper and lower mouthpieces 6 do not deform, and so that they can be easily peeled apart. The hard base material 8 may be, for example, a hard base material that is difficult to deform or a hard base material that does not undergo plastic deformation, and a fine uneven shape may be formed by embossing or knurling the surface of the hard base material. The formation of the uneven shape creates a space where the upper and lower mouthpieces 6 do not come into contact with each other, making them easily peeled apart.

[0022] The mouthpiece 6 may be provided with a fixing portion 9 for securing it so that it does not separate from the teeth 4, 5 or the gums 7. The fixing portion 9 is a part that can be fixed by sandwiching the teeth 4, 5 and the gums 7, or either one of them, from both the front and back sides of the teeth 4, 5. Specifically, the lower end of the mouthpiece 6 in the width direction may be a harder part compared to other parts, or a narrower part compared to other parts, or it may be a projection that presses the mouthpiece 6 against the teeth 4, 5 or the gums 7. If the fixing portion 9 is provided at the width direction end on one side in the thickness direction of the oral care composition 1, the mouthpiece 6 can be fixed to the user's teeth 4, 5 or gums 7 when the user puts on the oral care composition 1.

[0023] The oral composition 3 may be contained within a containment space covered by a thin film. The thin film may rupture when the temperature rises above a predetermined level, when the moisture content exceeds a predetermined level, or when its shape changes due to contact with teeth 4, 5, etc., and the contained oral composition 3 may seep out. In this case, a container with a large amount of oral composition 3 may be placed on the side facing the user's teeth 4, 5.

[0024] Furthermore, the oral composition 3 has a jelly-like (gel) state and may become liquid and seep out when it rises above a predetermined temperature, when its moisture content exceeds a predetermined amount, or when its external shape changes due to contact with teeth 4, 5, etc.

[0025] <Example 1> Furthermore, the oral care composition 1 may be arranged by layering the oral composition 3 on one side in the thickness direction of the base material 2 (the side where teeth 4 and 5 are located when worn). Figure 6 is a perspective view of the appearance of the oral care composition 1 according to Modification 1, in which the oral composition 3 is layered on one side in the thickness direction of the base material 2. The oral care composition 1 according to Modification 1 may have a composition layer 30 on one side in the thickness direction of the base material 2 in which the oral composition 3 is arranged.

[0026] The user places the oral care composition 1 between teeth 4 and 5, with the composition layer 30 facing the tooth 5 that they wish to treat. When pressure is applied to the oral care composition 1 from above and below by teeth 4 and 5, it deforms to conform to the shape of tooth 5, and the base material 2 hardens. Once the base material 2 adheres to the user's tooth 5 and hardens, the oral composition 3 is placed between tooth 5 and base material 2, and the oral composition 3 adheres to tooth 5 covered by base material 2. As a result, the anti-inflammatory and antibacterial components contained in the oral composition 3 adhere to tooth 5 covered by base material 2, preventing periodontal disease and tooth decay. In addition, the whitening components contained in the oral composition 3 make it possible to whiten tooth 5.

[0027] The composition layer 30 may react with the user's saliva, dissolve between the user's teeth 5 and the substrate 2, and adhere closely to the user's teeth 5. After the substrate 2 hardens, the oral composition 3 dissolves between the user's teeth 5 and the substrate 2, and when it becomes liquid, it can cover the surface of the teeth 5 and penetrate between the teeth 5. Therefore, the user can use the oral composition 3 in a way that is different from when the oral composition 3 does not dissolve. This makes it possible to achieve better results in treating periodontal disease, cavities, or teeth whitening.

[0028] The composition layer 30 may react to the user's body temperature, dissolve between the user's teeth 5 and the substrate 2, and adhere closely to the user's teeth 5. After the substrate 2 hardens, the oral composition 3 dissolves between the user's teeth 5 and the substrate 2, and when it becomes liquid, it can cover the surface of the teeth 5 and penetrate between the teeth 5. As a result, the user can obtain a greater effect on periodontal disease, tooth decay, or whitening compared to when the oral composition 3 does not dissolve.

[0029] Furthermore, the composition layer 30 may be a bag-shaped outer casing containing the oral composition 3. Figure 7 is an external perspective view showing an oral care composition 1 having a composition layer 30 in which the oral composition 3 is contained in an outer casing 31. The outer casing 31 may be made of a material that can be easily torn by the user applying pressure (biting) to the outer casing 31 with their teeth 5. The space surrounded by the outer casing 31 may contain the oral composition 3. When the user bites the oral care composition 1, the outer casing 31 may tear, and the oral composition 3 contained inside may adhere to and penetrate the user's teeth 5. This makes it possible for the user to obtain periodontal disease, tooth decay, or whitening effects.

[0030] Furthermore, the outer casing 31 may be a thin film that breaks when the temperature rises above a predetermined level, when the moisture content exceeds a predetermined level, or when its shape changes due to contact with teeth 4, 5, etc. In this case, the thin film does not need to contain the antibacterial components, anti-inflammatory components, etc. that are contained in the oral composition 3.

[0031] The composition layer 30 may have a sponge-like open-cell structure and be a flexible layer impregnated with the oral composition 3. When the user's teeth 5 apply pressure to the composition layer 30, the composition layer 30 is compressed, and the oral composition 3 that has permeated inside seeps out, adhering closely to the user's teeth 5 and penetrating between the teeth 5.

[0032] In this case, the surface of the composition layer 30 may be divided into a grid pattern. Figure 8 is an enlarged view of the oral care composition 1 as seen from the oral care composition 1 side, with the oral care composition 1 covering the teeth 5. For illustrative purposes, the base material 2 is omitted from the illustration in Figure 8. By dividing the surface of the composition layer 30 into a grid pattern, when the user bites down on the oral care composition 1, only the portion of the composition layer 30 that comes into contact with the user's teeth 5 is compressed. If the composition layer 30, which is not divided into a grid pattern, is partially pressed, a wide area including the surrounding area of ​​the pressed portion may deform, potentially creating a gap between the mouthpiece 6 and the teeth 5. If the surface of the composition layer 30 is divided into a grid pattern, even if the composition layer 30 is partially pressed, the pressing force is not transmitted beyond the divided portion, thus suppressing deformation of a wide area including the surrounding area of ​​the pressed portion and preventing the creation of a gap between the mouthpiece 6 and the teeth 5.

[0033] Furthermore, the oral care composition 1 according to Modification 1 may have markings such as letters, symbols, patterns, or marks on the side where the oral composition 3 is placed. By providing a marking on the side where the oral composition 3 is placed, the user can recognize the side where the oral composition 3 is placed and can wear the oral care composition 1 in the correct direction. The correct wearing direction is the direction in which the oral composition 3 is placed on the user's teeth 4 and 5.

[0034] The markings may include images of teeth and gums pre-printed on the oral care composition 1. In this case, if the oral care composition 1 is bitten on according to the markings, it can be applied in the correct direction. The markings may also include words such as "up" and "down" or "this side is the tooth side." The markings are not limited to those described above and can be changed as appropriate. The markings may be printed on the oral care composition 1, embossed, or applied by various other methods.

[0035] <Modification 2> Oral care composition 1 may simultaneously care for teeth 4 in the upper jaw and teeth 5 in the lower jaw. Figure 9 shows the oral care composition 1 according to modification 2 in a fitted state. Figure 9(A) shows the oral care composition 1 before deformation placed in the user's oral cavity. Figure 9(B) shows the oral care composition 1 after deformation placed in the user's oral cavity. Note that the oral care composition 1 has the same configuration as described in the embodiment.

[0036] As shown in Figure 9(A), the oral care composition 1 is placed between the teeth 4 on the upper jaw and the teeth 5 on the lower jaw of the user. When pressure is applied to the oral care composition 1 from above and below by the teeth 4 and 5 while it is placed between the teeth 4 and 5, the oral care composition 1 deforms to conform to the shape of the teeth 4 and 5, as shown in Figure 9(B). The deformed oral care composition 1 adheres tightly to the user's teeth 4 and 5. In this state, the oral care composition 1 is heated and hardened by the user's body temperature, or hardened by the adhesion of the user's saliva, becoming a mouthpiece 6 that covers the teeth 4 and 5 while adhering tightly to them.

[0037] As shown in Figure 9(B), if the upper and lower teeth 4 and 5 are fixed with a single oral care composition 1, the movement of the upper and lower teeth 4 and 5 (upper and lower jaws) is restricted when the composition is applied. Therefore, the oral composition 3 can maintain a state of continuous adhesion and penetration to the teeth 4 and 5, gums 7, and periodontal pockets, etc.

[0038] In the modified example 2, the oral care composition 1 may have the oral composition 3 layered on both sides of the base material 2 in the thickness direction. For example, it may have a composition layer 30 in which the oral composition 3 is arranged on both sides of the base material 2 in the thickness direction.

[0039] <Variation 3> The oral composition 3 may be arranged in multiple layers. Figure 10 shows the state in which the oral care composition 1 according to modified example 3 is worn by a user. When the oral care composition 1 is worn by a user, the oral composition 3 may be arranged with the oral composition 3 positioned on the tip side of the tooth 5 as the first layer 32 and the oral composition 3 positioned on the gum side as the second layer 33. The oral composition 3 may have three or more layers.

[0040] For example, the first layer 32, which is mainly in close contact with the tooth 5, may contain an oral composition 3 that includes enamel remineralization components and caries-causing bacteria removal components. The second layer 33, which is placed on the gum 7 side, may contain an oral composition 3 that includes a bactericidal component for the gum 7, an anti-inflammatory component, or a bactericidal component for the biofilm inside the periodontal pocket.

[0041] In the oral care composition 1 according to modified example 3, the oral care composition 1 according to the embodiment may have different oral composition 3 contained in the base material 2 on the tooth 4,5 side and the gum 7 side. Alternatively, the oral care composition 1 may be formed by combining multiple layers of composition 3 containing different oral compositions 3, as in modified example 2 or 3.

[0042] Oral care composition 1 having such a configuration allows for simultaneous care tailored to each target area simply by chewing on one oral care composition 1.

[0043] <Modification 4> Next, the oral care composition 1 according to Modification 4 will be described. Figure 11 is a cross-sectional view of the oral care composition 1 according to Modification 4 when cut along the longitudinal direction. The oral care composition 1 according to this modification has the same appearance as the oral care composition 1 according to Embodiment 1 shown in Figure 1. ru.

[0044] In this modified example, the oral composition 3 is formed in multiple layers on a substrate 2. Specifically, the oral composition 3 is laminated from the substrate 2 side, with an inner layer 3A containing a whitening component and an outer layer 3B containing an active ingredient that kills caries or periodontal disease bacteria. The oral care composition 1 according to this modified example is intended to be fixed in the oral cavity over the teeth 5 and gums 7, as shown in Figure 3(B). The oral care composition 1 kills the teeth 5 and gums 7 with the outer layer 3B, then the outer layer 3B dissolves, allowing the inner layer 3A to whiten the teeth 5. In this way, by forming the oral composition 3 in multiple layers and forming layers for each application of the drug, the oral care composition 1 can be used for multiple types of oral care.

[0045] Furthermore, the inner layer 3A and the outer layer 3B may be surrounded by a thin film that breaks when the temperature rises above a predetermined level, when the moisture content exceeds a predetermined level, or when the external shape changes due to contact with teeth 4, 5, etc. Alternatively, the thin film may be placed between the inner layer 3A and the outer layer 3B, and when the thin film breaks, the inner layer 3A may seep out to the outside. In addition, the oral composition 3 placed in the inner layer 3A and the oral composition 3 placed in the outer layer 3B each have a jelly (gel) state and may become liquid and seep out to the outside when the temperature rises above a predetermined level, when the moisture content exceeds a predetermined level, or when the external shape changes due to contact with teeth 4, 5, etc.

[0046] <Other Embodiments> The features included in each embodiment and its modified form disclosed above can be combined in any way. [Explanation of symbols]

[0047] 1. Oral care composition 2...Base material 3... Oral composition 4, 5 teeth 6. Mouthpiece 7. Gums 8...Hard base material 9...Fixed part 30··Compositional Layers 31··Exterior body 32··First Floor 33··Second Layer 3A Inner Layer 3B Outer Layer

Claims

1. A base material for a mouthpiece that can be deformed to fit the shape of the user's teeth, The material comprises an oral composition contained in the substrate, Oral care composition.

2. The oral composition contains an anti-inflammatory component. The oral care composition according to claim 1.

3. The oral composition contains a bactericidal component. The oral care composition according to claim 1.

4. The aforementioned substrate hardens in response to saliva. The oral care composition according to any one of claims 1 to 3.

5. The aforementioned substrate hardens in response to temperature. The oral care composition according to any one of claims 1 to 3.

6. The oral composition is arranged on one side of the substrate in the thickness direction, The oral care composition according to any one of claims 1 to 3.

Images