Dental Instruments

Abstract

To provide a dental antiseptic solution that has small effect on the human body and can effectively sterilize the inside of the oral cavity, an application method for a dental antiseptic solution, and a dental instrument.SOLUTION: A dental antiseptic solution 30 contains hypochlorous water 31 and a surfactant 32 and disinfects gingival sulci 101 and gum 102.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a dental disinfectant, a method for applying a dental disinfectant, and a dental instrument. [Background technology]

[0002] Dental disinfectants are used for cleaning and disinfecting the oral cavity, sterilizing periodontal disease bacteria, etc. Patent Documents 1 and 2 disclose the configuration of dental instruments that use hydrogen peroxide water, hypochlorous acid water, or the like as dental disinfectants. Periodontal disease bacteria that live in the gingival sulcus include aerobic gram-positive aerobic bacteria (hereinafter also referred to as "aerobic bacteria") and anaerobic gram-negative anaerobic bacteria (hereinafter also referred to as "anaerobic bacteria"). Gingivitis, a mild form of periodontal disease, is caused by aerobic bacteria, while periodontitis, a more severe form of periodontal disease, is caused by anaerobic bacteria. Of these, to effectively sterilize periodontal disease bacteria (anaerobic bacteria) in periodontitis, it is necessary to inject the dental disinfectant using a syringe-like tip that can reach deep into the gingival sulcus. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 63-275339 [Patent Document 2] Japanese Patent Application Laid-Open No. 2012-75602 Summary of the Invention [Problem to be solved by the invention]

[0004] Hydrogen peroxide water, used as a dental disinfectant, has high bactericidal properties, but if it remains on the skin for a long time, it can damage the skin and have adverse effects on the human body. On the other hand, hypochlorous acid water has high bactericidal properties and little effect on the human body. However, hypochlorous acid water has the disadvantage that it is easily decomposed by light (ultraviolet rays), organic matter such as oil, high temperature, etc., and its bactericidal effect lasts for a short time.

[0005] As mentioned above, the periodontal disease bacteria that cause periodontitis are anaerobic, and the periodontal disease bacteria (anaerobic bacteria) present deep in the gingival sulcus cause gingivitis through aerobic bacteria, deepening the gingival sulcus and allowing them to live deep within the sulcus. Therefore, sterilizing the periodontal disease bacteria (both aerobic and anaerobic bacteria) when the gingival sulcus is shallow (e.g., about 1 mm to 2 mm) is effective in preventing the onset of periodontitis. To achieve this, there is room for improvement in dental disinfectants, dental disinfectant application methods, and dental instruments.

[0006] In view of the above circumstances, there is a need for a dental disinfectant, a method for applying a dental disinfectant, and a dental instrument that have little effect on the human body and can effectively sterilize the oral cavity. [Means for solving the problem]

[0007] The dental disinfectant according to the present invention is characterized in that it contains hypochlorous acid water and a surfactant and disinfects the gingival sulcus and gums.

[0008] Hypochlorous acid water is decomposed and inactivated mainly by contact with organic matter such as oil. On the other hand, the dental disinfectant according to the present invention contains hypochlorous acid water and a surfactant. Therefore, since the surfactant in the dental disinfectant has lipophilicity, the hypochlorous acid water is prevented from coming into contact with oil in the oral cavity, making it less likely to decompose. In other words, the hypochlorous acid water contained in the dental disinfectant is more likely to maintain an effective chlorine concentration in the oral cavity. This allows the dental disinfectant to maintain the bactericidal effect of the hypochlorous acid water for a longer period of time. As a result, the dental disinfectant, which has little effect on the human body, can effectively clean and disinfect the oral cavity and kill periodontal disease bacteria.

[0009] As another feature, the surfactant is preferably a polyglycerin fatty acid ester.

[0010] Since the surfactant contained in the dental disinfectant is mixed with hypochlorous acid water and comes into contact with the gums and gingival sulcus in the oral cavity, it is preferable that it has little effect on the human body, like hypochlorous acid water. Therefore, in this feature, polyglycerol fatty acid esters are used as the surfactant contained in the dental disinfectant. Since polyglycerol fatty acid esters are food-grade emulsifiers, polyglycerol fatty acid esters have almost no adverse effects on the human body. Therefore, by using polyglycerol fatty acid esters as surfactants, dental disinfectants can ensure safety to the human body.

[0011] As another feature, it is preferable that the polyglycerol fatty acid ester has 14 or less carbon atoms.

[0012] Polyglycerol fatty acid esters, which are surfactants, tend to have increased lipophilicity and decreased hydrophilicity as the number of carbon atoms increases. In dental disinfectants, if the lipophilicity of the surfactant becomes too high, hypochlorous acid water may be easily decomposed by the surfactant, resulting in a decrease in the effective chlorine concentration of the hypochlorous acid water. Therefore, in this feature, the polyglycerol fatty acid ester has 14 or less carbon atoms. By using a polyglycerol fatty acid ester with a predetermined number of carbon atoms or less, the lipophilicity of the polyglycerol fatty acid ester is prevented from increasing beyond a predetermined level. As a result, the bactericidal power of hypochlorous acid water can be effectively maintained in dental disinfectants.

[0013] The method for applying a dental disinfectant according to the present invention is characterized in that it uses any of the dental disinfectants and a dental instrument described above, and ejects the dental disinfectant from the dental instrument to apply it to the gingival sulcus and the gums.

[0014] The onset and progression of periodontal disease are discussed below. Periodontal disease is broadly divided into gingivitis and periodontitis. Gingivitis occurs when inflammation of the gums occurs, while periodontitis occurs when gingivitis worsens and the inflammation spreads to the alveolar bone that supports the teeth. More than 500 species of bacteria live in the oral cavity, but the bacteria that cause gingivitis and periodontitis are different. Gingivitis is caused by gram-positive aerobic bacteria, while periodontitis is caused by gram-negative anaerobic bacteria. Approximately 75% of the bacteria that live in healthy gingival sulci are gram-positive aerobic bacteria, and approximately 25% are gram-negative anaerobic bacteria. Healthy gingival sulci are shallow, so aerobic bacteria are abundant and anaerobic bacteria are rare. These aerobic bacteria cause gingivitis. When gingivitis occurs, the gingival sulcus deepens. As the gingival sulcus deepens, anaerobic bacteria become more prevalent deep within the sulcus, and the number of aerobic bacteria decreases. Anaerobic bacteria then multiply as the gingival sulcus deepens, eventually leading to periodontitis.

[0015] As mentioned above, the depth of the gingival sulcus differs between gingivitis and periodontitis, with the sulcus being deeper in the periodontitis state. Therefore, suppressing inflammation and improving symptoms at the stage when gingivitis occurs is effective in preventing the onset of periodontitis. To do this, it is effective to spray a dental disinfectant on the shallow part of the gingival sulcus to kill aerobic and anaerobic bacteria.

[0016] To suppress inflammation and improve symptoms once periodontitis has developed, dental disinfectants must be applied to kill periodontal bacteria deep in the gingival sulcus. However, to effectively kill periodontal bacteria deep in the gingival sulcus using dental disinfectants, a scaler with a needle-like tip that can reach deep into the gingival sulcus is required. Such scaler tips have a special structure and are therefore expensive. Furthermore, advanced techniques are required to treat periodontal diseases such as periodontitis by using dental disinfectants to kill periodontal bacteria in the gingival sulcus where periodontitis has occurred.

[0017] Therefore, in this method, a dental disinfectant containing hypochlorous acid water and a surfactant is dispensed from a dental instrument and applied to the gingival sulcus and gums. Using this method, periodontal disease bacteria (both aerobic and anaerobic) can be killed by applying the dental disinfectant to the gums and shallow gingival sulcus before or during the onset of gingivitis. As a result, prevention or early treatment of periodontal disease using the dental disinfectant becomes possible. Furthermore, because this method applies the dental disinfectant to the gums and shallow gingival sulcus, there is no need to prepare a dedicated instrument such as a special scaler tip that can reach deep into the gingival sulcus; instead, scaler tips used in regular dental treatment can be used. Therefore, dental disinfectant can be easily applied to the gingival sulcus and gums during dental treatment.

[0018] In the method of applying the dental disinfectant, it is preferable that the dental disinfectant be heated to 20°C or higher and 35°C or lower.

[0019] When the dental disinfectant is kept at a temperature of 20°C or higher and 35°C or lower, as in this method, the bactericidal properties of the hypochlorous acid water can be maintained at a high level in the dental disinfectant.

[0020] The dental instrument according to the present invention is a dental instrument that discharges a dental disinfectant, and is characterized in that it comprises a water inlet connected to a supply source of the hypochlorous acid water, a discharge outlet that discharges the dental disinfectant, a flow path extending from the water inlet to the discharge outlet and through which the hypochlorous acid water or the dental disinfectant flows, an activator container that contains the surfactant, a mixing chamber that is provided midway through the flow path and mixes the hypochlorous acid water and the surfactant to obtain the dental disinfectant, and an activator supply path that is provided between the activator container and the mixing chamber and supplies the surfactant contained in the activator container to the mixing chamber.

[0021] According to this configuration, the dental instrument is connected to a hypochlorous acid water supply source and includes an activator container for containing a surfactant and a mixing chamber for mixing the hypochlorous acid water and the surfactant to obtain a dental disinfectant. This allows the dental disinfectant to be quickly discharged from the dental instrument's discharge port toward the patient's gingival sulcus and gums after the dental disinfectant containing the hypochlorous acid water and the surfactant is obtained in the mixing chamber of the dental instrument. In other words, there is no need to provide a device for mixing the hypochlorous acid water and the surfactant outside the dental instrument. The dental instrument can mix the hypochlorous acid water and the surfactant and apply the resulting dental disinfectant to the gingival sulcus and gums. As a result, a device for applying a dental disinfectant can be realized with a simple configuration.

[0022] It is preferable that the dental instrument further includes an activator heating section that heats the surfactant contained in the activator container to 60° C. or higher.

[0023] Some surfactants have high viscosity at room temperature. In the case of such surfactants, applying pressure to the activator container by pressing or the like may not allow the surfactant contained in the activator container to be quickly supplied from the supply channel to the mixing chamber. In such cases, the dental instrument cannot be discharged at the appropriate time. Therefore, the dental instrument of this configuration is equipped with an activator heating unit that heats the surfactant contained in the activator container to 60°C or higher. Because the viscosity of surfactants, such as emulsifiers, decreases at temperatures above 60°C, the heated surfactant easily passes through the activator supply channel. This ensures that the surfactant contained in the activator container can be reliably supplied to the mixing chamber, allowing the dental disinfectant containing hypochlorous acid water and a surfactant to be quickly obtained. As a result, the dental disinfectant can be discharged from the discharge port of the dental instrument and applied to the patient's gingival sulcus and gums at the appropriate time. [Brief explanation of the drawings]

[0024] [Figure 1] FIG. 1 is a schematic diagram showing an environment in which a dental instrument is used. [Figure 2] FIG. 1 is a perspective view of a dental instrument according to a first embodiment. [Figure 3] FIG. 2 is a cross-sectional view schematically showing a dental instrument. [Figure 4] FIG. 4 is a partial cross-sectional view schematically showing a dental instrument according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0025] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the present invention is not limited to the following embodiments, and various modifications are possible without departing from the spirit of the present invention.

[0026] [First embodiment] 1, a dental scaler 10 (an example of a dental instrument, hereinafter referred to as "scaler 10") is attached to, for example, a dental treatment device 1 (hereinafter referred to as treatment device 1). By using the scaler 10, a practitioner can apply a dental disinfectant such as hypochlorous acid water to the patient's teeth.

[0027] The scaler 10 can be attached to and detached from the medical treatment device 1. The medical treatment device 1 includes a medical chair 2, a tool holder 3, a foot switch 4, a first tank 5, and a second tank 6. The first tank 5 is filled with, for example, saline solution, and the second tank 6 is filled with hypochlorous acid water 31 (see FIG. 3) generated by electrolyzing the saline solution. The hypochlorous acid water 31 has, for example, a pH of 5.0 to 6.5 and an effective chlorine concentration of 10 ppm to 200 ppm.

[0028] As shown in FIG. 2, the scaler 10 includes a scaler body 11 and a scaler tip 15 as a distal end member. FIG. 3 shows a schematic diagram of the internal configuration of the scaler 10. As shown in FIG. 3, a water inlet 14 is provided at the base 13 of the scaler body 11, and a hose 7 extending from the second tank 6 is connected to the water inlet 14. A scaler tip 15 is attached to the distal end 12 of the scaler body 11. The scaler tip 15 of this embodiment is not a special scaler tip that can reach deep into the gingival sulcus, but is a scaler tip used in ordinary dental treatment. The scaler body 11 may be provided with a vibration source that applies ultrasonic vibrations to the scaler tip 15.

[0029] A flow path 20 is provided inside the scaler body 11 and the scaler tip 15. The flow path 20 extends from the water inlet 14 to the outlet 16, and hypochlorous acid water 31 or dental disinfectant 30 (hereinafter referred to as "disinfectant 30") flows through it. The scaler body 11 is provided with a mixing chamber 24, an activator storage section 25, and an activator supply path 26. The mixing chamber 24 is provided midway through the flow path 20 to mix the hypochlorous acid water 31 with a surfactant 32 to obtain the dental disinfectant 30. The mixing chamber 24 has an opening at the top and is connected to one end of the activator supply path 26.

[0030] The flow path 20 includes a first flow path 21 extending from the water inlet 14 to the mixing chamber 24 within the scaler body 11, a second flow path 22 extending from the mixing chamber 24 to the tip 12 of the scaler body 11, and a third flow path 23 extending from the end of the second flow path 22 on the tip 12 side to the discharge port 16 within the scaler tip 15. Hypochlorous acid water 31 flows through the first flow path 21, and disinfectant 30 flows through the second flow path 22 and the third flow path 23. The mixing chamber 24 is located near the water inlet 14 provided on the base 13. The scaler 10 is connected to the second tank 6 by inserting the tip of a hose 7 extending from the second tank 6 into the water inlet 14. The source of hypochlorous acid water 31 includes at least the second tank 6 and the hose 7.

[0031] The activator storage unit 25 contains a surfactant 32. The activator storage unit 25 has an opening at its bottom and is connected to the other end of the activator supply path 26. Because the surfactant 32 is viscous at room temperature, the surfactant 32 introduced into the activator storage unit 25 does not flow into the activator supply path 26 but remains in the activator storage unit 25. In this embodiment, the activator storage unit 25 is formed, for example, in a cylindrical shape with a bottom and has an openable and closable lid 25a on the top surface. The activator storage unit 25 can be externally introduced into the activator storage unit 25 by opening the lid 25a. The activator storage unit 25 is made of, for example, a resin material or a metal material. The activator storage unit 25 may be fixed to the scaler body 11 or may be detachable from the scaler body 11. The activator storage unit 25 contains an amount of surfactant 32 necessary to obtain, for example, a disinfectant solution 30 for one patient, when performing the application method described below. The activator supply passage 26 is provided between the activator storage section 25 and the mixing chamber 24 to supply the surfactant 32 stored in the activator storage section 25 to the mixing chamber 24. The activator storage section 25 is arranged in a state where it protrudes outside the scaler body 11. Also, the activator storage section 25, like the mixing chamber 24, is arranged near the base 13 of the scaler body 11. Therefore, the activator storage section 25 is unlikely to interfere with the treatment of a practitioner who holds the scaler body 11 near the tip 12.

[0032] [Dental disinfectant] The disinfectant 30 discharged from the discharge port 16 of the scaler 10 contains hypochlorous acid water 31 and a surfactant 32. The disinfectant 30 can be obtained in the mixing chamber 24 described below. Because the surfactant 32 in the disinfectant 30 is lipophilic, the hypochlorous acid water 31 is prevented from coming into contact with oils in the oral cavity and is therefore less likely to decompose. In other words, the hypochlorous acid water 31 contained in the disinfectant 30 is more likely to maintain an effective chlorine concentration in the oral cavity. This allows the disinfectant 30 to maintain the bactericidal effect of the hypochlorous acid water 31 for a longer period of time. As a result, the disinfectant 30, which has little effect on the human body, can effectively cleanse and disinfect the oral cavity and kill periodontal bacteria.

[0033] The surfactant 32 contained in the disinfectant 30 can be, for example, a glycerin fatty acid ester. Glycerin fatty acid ester is a type of food emulsifier. Since the surfactant 32 contained in the disinfectant 30 is mixed with the hypochlorous acid water 31 and comes into contact with the gingival sulcus 101 and gums 102 in the oral cavity, it is preferable that the surfactant 32 has little effect on the human body, like the hypochlorous acid water 31. Polyglycerin fatty acid esters have almost no adverse effects on the human body. Therefore, by using polyglycerin fatty acid esters as the surfactant 32, the disinfectant 30 can ensure safety to the human body.

[0034] The polyglycerol fatty acid ester, which is surfactant 32, tends to become more lipophilic and, conversely, less hydrophilic as the number of carbon atoms increases. If the lipophilicity of surfactant 32 in disinfectant solution 30 becomes too high, hypochlorous acid water 31 may be easily decomposed by surfactant 32, resulting in a decrease in the effective chlorine concentration of hypochlorous acid water 31. Therefore, it is preferable that the polyglycerol fatty acid ester have 14 or fewer carbon atoms. In this way, by using a polyglycerol fatty acid ester with a predetermined number of carbon atoms or less, the lipophilicity of the polyglycerol fatty acid ester is prevented from increasing beyond a predetermined level. As a result, the bactericidal power of hypochlorous acid water 31 can be effectively maintained in disinfectant solution 30.

[0035] In the disinfectant 30, the concentration of the surfactant 32 is set to, for example, 100 ppm to 300 ppm. Therefore, the activator storage unit 25 can be configured as a container that is smaller than the mixing chamber 24. Note that in Figures 2 and 3, the activator storage unit 25 is shown exaggerated compared to its actual size.

[0036] The disinfectant solution 30 can be obtained by supplying the surfactant 32 in the activator storage unit 25 to the hypochlorous acid water 31 in the mixing chamber 24. Specifically, after a predetermined amount of hypochlorous acid water 31 is stored in the mixing chamber 24, the surfactant 32 in the activator storage unit 25 is supplied to the mixing chamber 24. If the surfactant 32 is, for example, an emulsifier, it has viscosity at room temperature and remains in the activator storage unit 25. Therefore, for example, the activator storage unit 25 is made of an elastically deformable material, and the surfactant 32 stored in the activator storage unit 25 is supplied to the mixing chamber 24 by pressing the activator storage unit 25 from the outside.

[0037] After the surfactant 32 is supplied to the mixing chamber 24, the scaler 10 is shaken a predetermined number of times to obtain the disinfectant solution 30 in the mixing chamber 24. In this embodiment, a stirring ball 40 is placed in the mixing chamber 24 to promote mixing of the hypochlorous acid water 31 and the surfactant 32. Instead of or in addition to the stirring ball 40, a vibrator (not shown) that transmits vibrations from an external vibration source (not shown) may be attached to the mixing chamber 24. The vibration of the vibrator can also be used to stir the hypochlorous acid water 31 and the surfactant 32 in the mixing chamber 24. After the hypochlorous acid water 31 and the surfactant 32 are stirred in the mixing chamber 24, the hypochlorous acid water 31 is again supplied to the scaler 10 from the second tank 6, which is the source of the hypochlorous acid water 31, and the disinfectant solution 30 in the mixing chamber 24 is discharged from the discharge port 16 via the second flow path 22 and the third flow path 23.

[0038] [Method of applying dental disinfectant] Using a disinfectant 30 and a scaler 10, the disinfectant 30 is dispensed from the scaler 10 and applied to the gingival sulcus 101 and gingiva 102 of the tooth 100 (see FIG. 3 ). In this embodiment, applying the disinfectant 30 to the gingiva 102 and gingiva sulcus 101 before or during the onset of gingivitis can kill periodontal bacteria (both aerobic and anaerobic bacteria). This enables the use of the disinfectant 30 to prevent or treat periodontal disease early. Furthermore, because this method applies the disinfectant 30 to the gingiva 102 and shallow gingiva sulcus 101 before or during the onset of periodontal disease, there is no need to prepare a dedicated instrument, such as a special scaler tip that can reach deep into the gingiva sulcus 101, as the scaler tip 15. Instead, a scaler tip used in ordinary dental treatment can be used. Therefore, the disinfectant 30 can be easily applied to the gingiva sulcus 101 and gingiva 102 during dental treatment. Furthermore, since the scaler 10 is used in dental treatment to physically remove plaque by scaling, by applying the disinfectant 30 to the gingival sulcus 101 and the gums 102 during or immediately after scaling, bacteria that cause periodontal disease present near the gingival sulcus 101 and the gums 102 can be effectively killed.

[0039] Because the scaler 10 has the mixing chamber 24 and the activator container 25, after obtaining the disinfectant 30 containing the hypochlorous acid water 31 and the surfactant 32 in the mixing chamber 24, the disinfectant 30 can be quickly discharged from the discharge port 16 toward the patient's gingival sulcus 101 and gums 102. In other words, a device for mixing the hypochlorous acid water 31 and the surfactant 32 outside the scaler 10 is not required, and the scaler 10 can mix the hypochlorous acid water 31 and the surfactant 32 and apply the disinfectant 30 obtained by this mixing to the gingival sulcus 101 and gums 102. As a result, a device for applying the disinfectant 30 can be realized with a simple configuration.

[0040] Second Embodiment Some surfactants 32 contained in the activator container 25 have high viscosity at room temperature. In the case of such surfactants 32, even if pressure is applied to the activator container 25 by pressing or the like, the surfactant 32 contained in the activator container 25 may not be supplied to the mixing chamber 24 promptly. In such cases, the disinfectant 30 cannot be ejected from the dental instrument at the appropriate time. Therefore, in this embodiment, as shown in FIG. 4, the scaler 10 is provided with an activator heating unit 50 around the activator container 25 that heats the surfactant 32 contained in the activator container 25.

[0041] The activator heating unit 50 is disposed so as to surround the activator storage unit 25 and is configured to be able to heat the surfactant 32 to, for example, 60°C or higher. The activator heating unit 50 is configured, for example, by an electric heater heated by an external power source (not shown). The activator heating unit 50 may be configured to incorporate a self-heating substance (e.g., quicklime, activated carbon, iron powder, etc.) that does not require an external power source. The activator heating unit 50 may be detachable from the activator storage unit 25, or may be integrally provided with the activator storage unit 25. If the activator heating unit 50 is an electric heater, a separate switch for turning the electric heater on and off is provided. If the activator heating unit 50 incorporates a self-heating substance, a separate operation is performed on the activator heating unit 50 to induce heat generation from the self-heating substance.

[0042] The surfactant 32 has high viscosity at room temperature, but its viscosity decreases when the temperature rises to 60°C or higher, allowing the heated surfactant 32 to easily pass through the activator supply path 26. This allows the surfactant 32 contained in the activator container 25 to be reliably supplied to the mixing chamber 24, and the disinfectant 30 containing the hypochlorous acid water 31 and the surfactant 32 to be quickly obtained. As a result, the disinfectant 30 can be discharged from the discharge port 16 of the scaler 10, and the disinfectant 30 can be applied to the patient's gingival sulcus 101 and gums 102 at the appropriate time.

[0043] [Another embodiment] (1) In the above embodiment, an example was shown in which polyglycerin fatty acid ester, which is a type of food emulsifier, is used as the surfactant 32. However, other food emulsifiers may also be used as the surfactant 32.

[0044] (2) In the above embodiment, an example was shown in which the activator storage unit 25 and the activator heating unit 50 were provided so as to protrude outward from the scaler body 11, but a recess (not shown) may be formed on the outer surface of the scaler body 11, and the activator storage unit 25 and the activator heating unit 50 may be disposed in the recess. In this way, the scaler 10 can be configured in such a way that the activator storage unit 25 and the activator heating unit 50 do not protrude outward from the scaler body 11, making it easier for the practitioner to operate the scaler 10.

[0045] (3) In the above embodiment, the scaler 10 is used as a dental instrument, but a syringe may also be used as a dental instrument. In the case of a syringe, only the application of the disinfectant 30 to the gingival sulcus 101 and the gums 102 is performed.

[0046] (4) The mixing chamber 24 and the activator container 25 may not be provided in a dental instrument such as the scaler 10, but may be separately disposed between the second tank 6, which is the supply source of the hypochlorous acid water 31, and the hose 7. [Industrial Applicability]

[0047] INDUSTRIAL APPLICABILITY The present invention can be widely used in dental disinfectants, dental disinfectant application methods, and dental instruments. [Explanation of symbols]

[0048] 1: Dental treatment equipment 5: First tank 6: Second tank (source of hypochlorous acid water) 7: Hose (source of hypochlorous acid water) 10: Scaler (dental instrument) 11: Scaler body 12:Tip 13: Base 14: Water supply port 15: Scaler tip (tip part) 16:Discharge port 20: Flow path 21: First flow path 22: Second flow path 23: Third flow path 24:Mixing room 25: activator storage section 26: Activator supply channel 30: Disinfectant (dental disinfectant) 31: Hypochlorous acid water 32: Surfactants 40: Mixing ball 50: Activator heating section

Claims

1. A dental instrument that discharges a dental disinfectant solution containing hypochlorous acid water and a surfactant and disinfects the gingival sulcus and gums, the dental instrument is a dental scaler, The dental scaler comprises: A water supply port connected to a supply source of the hypochlorous acid water; A discharge port for discharging the dental disinfectant; A flow path provided from the water supply port to the discharge port, through which the hypochlorous acid water or the dental disinfectant flows; an active agent storage section that stores the surfactant; a mixing chamber provided in the middle of the flow path for mixing the hypochlorous acid water and the surfactant to obtain the dental disinfectant; an activator supply path that is provided between the activator storage portion and the mixing chamber and that supplies the surfactant stored in the activator storage portion to the mixing chamber.

2. A dental instrument that discharges a dental disinfectant solution containing hypochlorous acid water and a surfactant and disinfects the gingival sulcus and gums, the dental instrument is a syringe, The syringe comprises: A water supply port connected to a supply source of the hypochlorous acid water; A discharge port for discharging the dental disinfectant; A flow path provided from the water supply port to the discharge port, through which the hypochlorous acid water or the dental disinfectant flows; an active agent storage section that stores the surfactant; a mixing chamber provided in the middle of the flow path for mixing the hypochlorous acid water and the surfactant to obtain the dental disinfectant; an activator supply path that is provided between the activator storage portion and the mixing chamber and that supplies the surfactant stored in the activator storage portion to the mixing chamber.

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