JP2016106747A - Cleaning/cleansing method and cleaning/cleansing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cleaning/cleansing method and cleaning/cleansing apparatus capable of performing safe and effective cleaning/cleansing, while avoiding increase in surface roughness due to scratch of teeth and an implant surface caused by jetted fine particles in a blast method.SOLUTION: A jet cleansing device 1 includes air passages 31 and 32, a water passage 33, and a powder tank 22 in the air passage 31 for storing agar powders. Both of the air passage 31 and the water passage 33 are made open and a spray containing the agar powders is jetted from a nozzle part 10 to remove attachment on an object surface. After the jetting of the spray containing the agar powders, the air passage 32 and the water passage 33 are made open and a mix spray of air and water or warm water is jetted from the nozzle part 10 to remove the agar attached to the object surface.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a cleaning method and a jet cleaning device, and more particularly to a cleaning method and a jet cleaning device using an agar powder suitable for cleaning and cleaning a tooth surface.

  Inflammatory diseases of the gingiva and oral mucosa caused by adhesion of contaminants such as plaque and tartar derived from bacteria in the oral cavity, such as periodontal disease and peri-implantitis, are caused by destroying the natural teeth and supporting tissues around the implant. Their lifespan is significantly reduced. Therefore, in clinical practice, treatments for removing these contaminants adhering to the surfaces of natural teeth and implants are widely used. As the treatment method, “Maintenance therapy” or SPT (Supportive Periodontal (Periimplant) Therapy) is applied daily in dental clinics, and the effect of extending the life of natural teeth and inrants is obtained. .

  And about the removal of the contaminant in such an intraoral area, the washing | cleaning by normal flowing water etc. and the effect by a detergent are limited. The reason for this is that the contaminants attached to the teeth and implants are firmly attached. On the other hand, as for cleaning, the oral tissue is damaged when using running water, etc., as long as it is in the human oral cavity. Must not interfere with breathing, or adversely affect the respiratory or digestive system. For this reason, it is necessary to limit the amount and pressure of flowing water only with flowing water, and it is difficult to achieve the ability to sufficiently remove contamination attached to teeth and implants alone.

  Next, with regard to cleaning with detergents, chemicals such as alkalis and acids have a remarkable effect as detergents, but the choices are limited because chemicals that adversely affect the human body cannot be used. In addition, it is necessary to avoid using detergents with relatively low biotoxicity in detergents at high concentrations or in large quantities.

  Therefore, to remove contamination from teeth and implant surfaces currently practiced in dentistry, a small rotating brush or a metal rod (scaler) connected to an ultrasonic transducer is used to pin the dirt with human hands. A method of scrubbing at points is used. However, the calculus on the teeth and the implant surface is firmly attached, or when the calculus is in the periodontal pocket under the gingival margin, removal using a scaler is difficult. In such a case, the operator inserts a thin metal rod with a cutting edge into the periodontal pocket, and scrapes and removes the contaminated surface. This removal operation is extremely laborious and time consuming. Furthermore, when the periodontal pocket is deep as 5 mm or more, a surgical technique of peeling and curetting the gingiva around the teeth and the implant may be used, and the burden on the patient and the operator is extremely large.

  Therefore, as disclosed in Patent Document 1, as a method for cleaning teeth and implant surfaces that reduce the burden of these operations, fine particles are ejected from a thin nozzle at high speed to collide with the contaminated surface. Thus, a method for eliminating the adhered plaque and tartar has been devised. This method, like the conventional cleaning method, requires the surgeon to pinpoint against a dirty surface, but reduces the amount of work for the surgeon because it does not require the curettage action of the surgeon's fingers. In addition, since the work time is shortened, the burden on the patient is reduced. This method is called blasting and is widely used as a method for effectively cleaning the surfaces of teeth and implants.

Japanese Patent Laid-Open No. 10-179617

  By the way, the fine particles used in the blasting method exert an impact force for separating the dirt on the surface to be cleaned from the surface after subtracting the attenuation due to the air resistance during the flight. The momentum is given at the time of injection. Therefore, effective cleaning cannot be achieved unless the particles have a certain degree of hardness and mass. On the other hand, when the hardness and impact force of the particles increase, not only dirt is removed, but also the side effects of damaging teeth and implant surfaces and increasing surface roughness occur. Although these scratches and surface roughness may occur even when the above-described scaler is used for cleaning, such an increase in scratches and surface roughness is not preferable because it tends to cause redeposition of plaque.

  At present, granules such as silica, caldium carbonate, hydroxyapatite, β-TCP (β-tricalcium phosphate) are used for dental blasting. Of these, silica and calcium carbonate may cause an increase in surface roughness in the cleaning pair and must be used with caution. In addition, there is a method of using a material such as plastic powder as the injection fine particles, but since it is used in the oral cavity, there is a problem that safety such as toxicity to a living body cannot be ensured.

  The present invention has been made in view of these circumstances, and in the blasting method, safe and effective cleaning and washing are performed while avoiding an increase in surface roughness due to abrasion of the teeth and implant surface by the sprayed fine particles. It is an object to provide a method and apparatus to obtain.

  In order to solve the above-mentioned problems, the invention of claim 1 is a cleaning and cleaning method, characterized in that deposits on the object surface are removed by causing agar powder to collide with the object surface. .

  The invention of claim 2 is the invention of claim 1, wherein the shape of the agar powder has protrusions and sharp edges.

  The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the agar powder is impregnated with a drug or an antibacterial component in advance.

  The invention of claim 4 is the invention of any one of claims 1 to 3, wherein the agar powder is impregnated with a chemical detergent in advance.

  The invention of claim 5 is characterized in that, in the invention of any one of claims 1 to 4, a chemical detergent is mixed with the agar powder.

  The invention of claim 6 is characterized in that, in the invention of any one of claims 1 to 5, at least any one of a weighted particle, a fragrance, or a pigment is mixed in the agar powder. .

  The invention of claim 7 is characterized in that, in the invention of any one of claims 1 to 6, the agar attached to the surface of the object is removed by water or hot water.

  The invention of claim 8 is an injection cleaning device, comprising an air passage, a water passage, and a powder tank for storing powder containing agar powder in the air passage, and the air passage and the water passage are both opened. The spray containing the agar powder is sprayed from a nozzle.

  The invention of claim 9 is characterized in that, in the invention of claim 8, the agar powder is charged by friction between the powders, friction between the agar powder and the air passage, or charging of the agar powder. To do.

  The hardness of agar in the solid state is basically higher than that of plaque etc., but it is far from the titanium material of teeth, dentin, and implant materials (abutments and fixtures). Even a strong jet will not cause scratches on the surfaces to be cleaned and will not increase the surface roughness. Further, in dentistry, agar has a history of nearly a century as a dental impression material for obtaining a tooth mold, and there is no concern at all about its safety as it is still used as the main dental material.

  In addition, it is easy to add a cleaning retention agent or an antibacterial agent to the agar powder using a method of applying food additives. Furthermore, even if agar powder enters the digestive tract, it does not have any harmful effect on agar, which is a food, and even if it remains in the oral cavity, it will dissolve and disappear if it is given hot water. As described above, according to the present invention, since the agar powder is used, safety is high in the oral cavity, a sufficient cleaning effect is obtained, and there is an effect that the target object is not adversely affected.

  Furthermore, the surface cleaning effect can be controlled by adjusting the density of the agar powder to adjust the momentum. Further, by impregnating the agar powder with a chemical or antibacterial component that enhances the cleaning effect, it is possible to further enhance the therapeutic effect of periodontitis and peri-implantitis by surface cleaning. If the agar powder itself does not have a cleaning effect, the agar powder should be loaded with particles such as biocompatible metals such as titanium or ceramics as weighted particles, or powder such as barium sulfate, which has a large specific gravity and is safe for the living body. It is also possible to increase the effect. Furthermore, fragrances and pigments may be added. By adding fragrances, for example, a refreshing cleaning is possible, and by adding pigments, it is easy to find the residue of agar powder in the oral cavity at the time of cleaning. Become. Moreover, when agar adheres instead of soiling on the surface after washing, it can be dissolved and removed with hot water.

  Further, by charging the agar powder, it is possible to give an effect of adsorbing the compounding additive to the agar powder, and it is possible to enhance the cleaning / disinfecting effect on the object to be cleaned.

It is a principal part schematic block diagram for demonstrating an example of the jet cleaning apparatus which concerns on this invention. It is a schematic block diagram of the fluid circuit for demonstrating the operation example of the jet cleaning apparatus of FIG.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, preferred embodiments of a cleaning and cleaning method and a jet cleaning apparatus according to the invention will be described with reference to the drawings. In the following description, the configurations denoted by the same reference numerals in different drawings are the same, and the description thereof may be omitted.

  FIG. 1 is a schematic configuration diagram of a main part for explaining an example of the jet cleaning apparatus according to the present invention. The jet cleaning apparatus 1 includes a nozzle unit 10, a handpiece unit 20, and a hose unit 30, and the handpiece unit 20 is provided with a powder storage unit 21. A powder tank 22 containing agar powder used for tooth surface cleaning and powder containing an additive (mixture) to be described later is detachably mounted in the powder storage unit 21 in a cartridge manner. The nozzle unit 10 includes a nozzle 11 for injecting air mixed with powder and an outer cylinder 12 concentric with the nozzle 11, and jets water from a gap between the nozzle 11 and the outer cylinder 12. ing. In this embodiment, by operating a foot controller (not shown), the tooth surface can be cleaned by simultaneously spraying powder-mixed air and water from the nozzle unit 10, and only water (washing water) or hot water is used. The tooth surface after cleaning can be cleaned.

  An air passage 31 for passing air A for blowing powder onto the tooth surface and an air passage 32 for flowing air B for cleaning the tooth surface or preventing nozzle clogging in the hose portion 30. And a water passage 33 for flowing water or hot water C for cleaning and washing the tooth surface. The flow of air A and B and water or hot water C flowing through the air passages 31 and 32 and the water passage 33 is controlled by a foot controller (not shown).

  FIG. 2 is a schematic configuration diagram of a fluid circuit for explaining an operation example of the jet cleaning apparatus of FIG. In FIG. 2, the air pressure in the air passage 31 is set to a pressure that effectively agitates and conveys the powder. The air pressure in the air passage 32 is set higher than the air pressure in the air passage 31, and the tooth surface is effectively cleaned by strengthening the spray during the tooth surface cleaning. Then, as shown in FIG. 2, electromagnetic valves 31A, 32B, and 33C are inserted into the air passages 31, 32 and the water passage 33, respectively, and these electromagnetic valves 31A, 32B, and 33C are inserted. Is activated by pressing a foot operation button of a foot controller (not shown). The check valve 23 prevents powder from entering the electromagnetic valve 31 </ b> A from the powder tank 22, and the check valve 24 prevents air flowing out from the output flow path B from flowing back to the powder tank 22. Is.

Next, an operation example of a foot operation button of a foot controller (not shown) will be described.
(1) When cleaning the tooth surface, pressing a predetermined foot operation button opens the electromagnetic valves 31A and 33C (33B is closed). From the tip of the nozzle unit 10, air A and water C containing powder are mixed. The mixed fluid is sprayed. As a result, the agar powder can collide with the object to be cleaned and the deposits on the object surface can be removed.
(2) When cleaning the tooth surface, pressing the other foot operation buttons opens the electromagnetic valves 32B and 33C (31A is closed), and a mixture of air B and water C is sprayed from the tip of the nozzle unit 10. The Thereby, the agar adhering to the cleaning object can be removed.
(3) When nozzle clogging is prevented, by pressing another foot operation button, or by simultaneously pressing the two foot operation buttons, only the electromagnetic valve 32B is opened (the electromagnetic valves 31A and 33C are closed), and the nozzle Only the air B is jetted from the tip of the part 10, and the powder adhering to the tip of the nozzle part 10 is blown off to prevent clogging of the nozzle. Although an example in which three foot switches are separately provided has been described above, a single foot switch may be used and may be operated in three stages depending on the amount of depression or movement.

  In addition, when an additive is blended with the agar powder, it is desirable to charge the agar powder so that the additive is easily adsorbed on the surface of the agar powder. In order to charge the agar powder, for example, friction between the agar powder and the additive, friction between the agar powder and the air passage, or charging of the agar powder is possible.

  The greatest feature of the present invention is that agar, which is a food, is used for the particles that play the main role in spray cleaning. For this reason, it can clean without damaging a tooth | gear and the abutment of an implant. In addition, the raw material for agar is seaweed, and red algae, especially proboscis and gonogori, are used. At present, agar with various physical properties is produced from seaweed around the world. For this reason, it is desirable to select agar having a relatively high specific gravity as the agar powder in order to effectively clean the surface of the object by nozzle injection.

  In addition, in order to promote the effect of physically cleaning object surface dirt by nozzle injection, agar powder impregnated with chemical cleaner in advance or a chemical cleaner is mixed with agar powder. You may spray. Moreover, the treatment effect of periodontitis and peri-implantitis can be enhanced by impregnating the agar powder with a drug or an antibacterial component. Furthermore, in order to increase the weight density of the powder and increase the momentum at the time of injection, the agar powder is mixed with biocompatible metals such as titanium and fine particles such as ceramics, or barium sulfate powder as weighted particles. May be injected. In addition, by making the shape of the agar powder into a shape having protrusions and sharp edges, it is possible to improve the effect of physically cleaning the object surface dirt. In addition, if the amount of the chemical cleaning agent, metal, ceramics or the like mixed with the agar powder is very small, there is very little possibility of damaging the tooth surface or increasing the surface roughness.

DESCRIPTION OF SYMBOLS 1 ... Spray cleaning apparatus, 10 ... Nozzle part, 20 ... Hand piece part, 21 ... Powder storage part, 22 ... Powder tank, 23, 24 ... Check valve, 30 ... Hose part, 31, 32 ... Air passage, 33 ... Water passage.

Claims (9)

  A cleaning / cleaning method, wherein deposits on the surface of the object are removed by colliding the agar powder with the surface of the object.   The cleaning method according to claim 1, wherein the shape of the agar powder has protrusions or sharp edges.   The cleaning method according to claim 1 or 2, wherein the agar powder is impregnated with a drug or an antibacterial component in advance.   4. The cleaning cleaning method according to claim 1, wherein the agar powder is impregnated with a chemical cleaning agent in advance.   The cleaning cleaning method according to claim 1, wherein a chemical cleaning agent is mixed with the agar powder.   The cleaning method according to any one of claims 1 to 5, wherein at least one of weighted particles, a fragrance, or a pigment is mixed in the agar powder.   The cleaning method according to any one of claims 1 to 6, wherein the agar attached to the object surface is removed with water or warm water.   An air passage, a water passage, and a powder tank that contains powder containing at least agar powder in the air passage, the air passage and the water passage are both opened, and the spray containing the agar powder is discharged from a nozzle. A jet cleaning apparatus for jetting. The jet cleaning apparatus according to claim 8, wherein the agar powder is charged by friction between the powders, friction between the agar powder and the air passage, or charging of the agar powder.

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