Tooth cleaning device and method

Abstract

The invention discloses a tooth cleaning device and method.The tooth cleaning device comprises a gas-liquid supply module, a gas-liquid mixing and cavitation module, a multi-channel gating module and an intraoral spraying piece which are sequentially connected, the gas-liquid supply module conveys cleaning liquid and compressed air to the gas-liquid mixing and cavitation module, and high-energy multiphase jet flow is formed; the multi-channel gating module controls branch gating corresponding to the spraying holes, needing spraying, of the in-mouth spraying piece, the high-speed multi-phase jet flows to the spraying holes, needing spraying, of the in-mouth spraying piece through the multi-channel gating module, and the area, needing cleaning, in the oral cavity is cleaned. The oral cavity cleaner can efficiently clean the oral cavity with high quality and improve the oral hygiene level.

Description

Technical Field

[0001] The invention belongs to the technical field of oral care, and in particular to a tooth cleaning device and method. Background Art

[0002] Good oral hygiene can prevent oral diseases such as gingivitis, periodontal disease, and caries, and help reduce the incidence of systemic diseases such as diabetes and cardiovascular disease. According to statistics, the proportion of people with healthy periodontal health is less than 10%, and a large number of oral diseases are caused by poor oral cleaning. Traditional tooth cleaning methods, including manual toothbrushes, electric toothbrushes, and water flossers, all require users to master good brushing skills to achieve better cleaning results. Good brushing skills are often difficult for non-oral professionals to master. At the same time, due to the limited space inside the mouth, there are also many blind spots for cleaning, so good oral cleaning becomes difficult to achieve.

[0003] Traditional dental floss can clean soft plaque and impactions in some spaces between teeth through physical contact. However, due to the limited physical contact area, its main function is to clean impactions and it has little effect on plaque removal. It also requires manual skills, especially in the posterior teeth area, where cleaning operations are extremely difficult.

[0004] Traditional water flossers have a single-tube, small-head design that can extend to the back teeth area, but it still requires high skills from the user. If it is sprayed onto the gum area, it will cause considerable pain or even bleeding gums. Summary of the invention

[0005] In view of the shortcomings in the prior art, the present invention provides a teeth cleaning device and method.

[0006] The present invention achieves the above technical objectives through the following technical means.

[0007] A teeth cleaning device, comprising:

[0008] A gas-liquid supply module, including a gas delivery power component and a liquid delivery power component, for delivering cleaning liquid and compressed air;

[0009] The gas-liquid mixing and cavitation module is connected to the gas-liquid supply module, and the high-pressure gas inside the gas-liquid mixing and cavitation module impacts the cleaning liquid to form a high-energy multiphase jet;

[0010] The multi-channel gating module comprises a multiphase flow input pipe, a rotating motor, a rotating switching turntable and a buffer cavity, wherein the buffer cavity is composed of a concave upper cover and a main cavity, and the rotating switching turntable is located between the upper cover and the main cavity to form a sealing structure; the rotating switching turntable is connected to the rotating shaft of the rotating motor; a turntable output port is provided on the rotating switching turntable; the multiphase flow input pipe is used to connect the output port of the gas-liquid mixing and cavitation module and the buffer cavity;

[0011] The intraoral spray piece includes interconnected multi-channel gate branch pipelines, and contact pieces on the labial, buccal and lingual sides of the teeth. The multi-channel gate branch pipeline is sealed and connected to the top of the upper cover; the branches of the multi-channel gate branch pipeline correspond to the through holes on the upper cover.

[0012] In the above technical scheme, the contact pieces on the labial and buccal sides and the lingual sides of the teeth are integral structures, and the upper and lower sides thereof are designed with grooves arranged in the same manner as human teeth, a plurality of labial and buccal spray holes are continuously arranged along the outer edge of the groove, a plurality of lingual spray holes are continuously arranged along the inner edge of the groove, and two groups of maxillofacial spray holes are also arranged in the groove; n branches are arranged in the multi-pathway selection branch pipeline, and all the spray holes are divided into n sets in a manner of continuous adjacent tooth positions and similar numbers of spray holes, and the spray holes in the same set are connected to form a path, with a total of n paths; the n paths and n branches are connected respectively, where n=1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.

[0013] In the above technical solution, the upper and lower side surfaces of the contact pieces on the labial and buccal sides and the lingual sides of the teeth are independent parts, and the two independent parts are respectively connected to a multi-channel selection branch pipeline, and the independent parts are selected for use according to needs.

[0014] In the above technical solution, for the customized intraoral spray piece, the position of the spray hole is set according to user needs, and the user needs include but are not limited to the dental arch structure, the personalized oral plaque residue location, and the user's special protection requirements. The user's special protection requirements include but are not limited to dental implant restorations, orthodontic brackets, and fixed restorations.

[0015] In the above technical solution, the multi-channel gating module is replaced by a valve with one input end and multiple output ends. The input end is connected to the output port of the gas-liquid mixing and cavitation module, and one output end is connected to a branch of the multi-channel gating branch pipeline. An electric-controlled valve is installed at each output end. The channel gating is achieved by controlling the electric-controlled valve of the branch that needs to be connected to open and the other electric-controlled valves to close.

[0016] In the above technical solution, the gas delivery power component includes an air pump and a gas cylinder connected to each other, the air pump is used to generate compressed gas, the gas cylinder is used to buffer compressed air, the gas cylinder and the gas-liquid mixture are connected to the cavitation module, and an electric control valve is provided on the connecting pipeline.

[0017] In the above technical solution, the liquid delivery power component includes a liquid storage bottle and a water pump connected to each other, and the water pump delivers the clean liquid in the liquid storage bottle to the gas-liquid mixing and cavitation module.

[0018] In the above technical solution, an ultrasonic transducer is arranged at any node between the liquid storage bottle and the multi-channel gating module.

[0019] In the above technical solution, a spiral structure is provided inside the gas-liquid mixing and cavitation module.

[0020] A method of teeth cleaning:

[0021] The main gas-liquid supply module delivers the cleaning liquid and compressed air to the gas-liquid mixing and cavitation module, where the high-pressure gas impacts the cleaning liquid to form a high-speed multiphase jet mixed with a large number of multi-scale bubbles;

[0022] The multi-channel gating module works to control the branch gating corresponding to the nozzle holes of the intra-oral spray parts that need to be sprayed. The high-speed multi-phase jet flows through the multi-channel gating module to the nozzle holes of the intra-oral spray parts that need to be sprayed, and cleans the areas in the oral cavity that need to be cleaned.

[0023] In summary, the present invention has the following beneficial effects:

[0024] (1) The intraoral spray of the present invention can cover the cleaning area required by the oral dentition. The intraoral spray utilizes the limiting function of the dentition itself, and the directional design of the spray hole points to the area to be cleaned, while avoiding impact damage to the gums. The user only needs to hold the intraoral spray and start the cleaning device, and the cleaning process can be automatically executed without any manual skills, and high-quality cleaning area coverage can be completed.

[0025] (2) The present invention controls the on-time and on-time interval of the gas cylinder to achieve a compressed fluid pulse impact mode, so that the energy is released in a concentrated manner, and the impact force of the high-energy multiphase jet is efficiently improved, so as to better achieve the 50-90Psi impact force required for removing plaque; the pulsed high-energy multiphase jet will form a continuous impact cleaning on the tooth surface. The first time is that the high-energy multiphase jet directly impacts the area covered by the nozzle hole. Further, the multi-scale bubbles in the multiphase fluid flow to other areas of the dentition, continuously contact the tooth surface, produce bursts, generate local high-temperature and high-pressure areas, shock waves, and comprehensively produce physical and chemical reactions to achieve comprehensive tooth surface cleaning; because the high-energy bubbles can impact the gingival edge, the gingiva is turned outward within a safe range, and the cleaning ability can be extended to the subgingival area.

[0026] (3) The multi-channel gating module of the present invention can conduct according to the target branch channels of the intraoral sprayer to meet the user's usage needs;

[0027] (4) The cleaning device of the present invention improves the oral hygiene level by cleaning the physical residues, soft scale, foreign matter and bacterial plaque in the oral cavity with high efficiency and quality, thus providing users with better oral health. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the structure of the teeth cleaning device of the present invention;

[0029] Figure 2 A cross-sectional view of the multi-channel gating module of the present invention;

[0030] Figure 3 This is a schematic diagram of the structure of the intraoral spray piece of the present invention;

[0031] Figure 4 This is a working diagram of the teeth cleaning device of the present invention;

[0032] In the figure, 1-gas delivery power component, 2-liquid delivery power component, 3-gas pipeline, 4-liquid pipeline, 5-gas-liquid mixing and cavitation module, 6-multiphase jet main pipeline, 7-multi-channel gating module, 8-multiphase flow branch channel, 9-intraoral spray piece, 10-multiphase flow input pipe, 11-rotating motor, 12-rotating motor shaft, 13-rotating switching turntable, 14-sealing ring A, 15-sealing ring B, 16-turntable output port, 17-sealing pad, 18-buffer pad, 19-intraoral spray piece interface, 20-buffer cavity, 201-upper cover, 202-main cavity, 21-multi-channel gating branch pipeline, 22-contact surface of labial and buccal side and lingual side of tooth, 23-maxillofacial spray hole, 24-labial and buccal spray hole of tooth, 25-lingual spray hole of tooth. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0034] like Figure 1 As shown, a tooth cleaning device includes a main control module, a gas-liquid supply module, a gas-liquid mixing and cavitation module 5, a multi-channel gating module 7 and an intra-oral sprayer 9, wherein the gas-liquid mixing and cavitation module 5 and the multi-channel gating module 7 are connected through a multi-phase jet main channel 6, and the multi-channel gating module 7 and the intra-oral sprayer 9 are connected through a multi-phase flow branch channel 8.

[0035] The main control module is used for controlling the whole machine, and is composed of a computer processor, a storage unit, an I / O unit and a human-machine interface. It has a built-in control program for receiving user command input and position sensor information, controlling the gas-liquid supply module, the gas-liquid mixing and cavitation module 5, the multi-channel gating module 7 and the human-machine interaction work (including controlling the start and stop of the entire cleaning device, controlling the conduction time and conduction time interval of the electric control valve, and the specific implementation method is the existing technology).

[0036] The gas-liquid supply module is used to transport clean gas and liquid into the mouth, and includes a gas transport power component 1 and a liquid transport power component 2; the gas transport power component 1 includes a connected air pump and a gas cylinder, the air pump is used to generate compressed gas, and the gas cylinder is used to buffer the compressed air, the purpose is to ensure the stability of the gas output pressure, and the gas pressure range in the gas cylinder is 0.15-1.0Mpa (the pressure is controlled by the safety pressure limiting valve provided on the gas cylinder); an electric control valve is provided on the connecting pipeline (i.e., the gas pipeline 3) between the gas cylinder and the gas-liquid mixing and cavitation module 5, and when necessary, the main control module controls the electric control valve to open and transport the compressed air to the air inlet of the gas-liquid mixing and cavitation module 5; the liquid transport power component 2 includes a connected liquid storage bottle and a water pump, the liquid storage bottle stores the cleaning liquid required for cleaning, the cleaning liquid can be pure water, and plaque removal, antibacterial drugs, antifungal drugs, grinding and polishing agents, fresheners and spices can also be added, and the water pump transports the cleaning liquid to the liquid inlet of the gas-liquid mixing and cavitation module 5 through the liquid pipeline 4. Among them, the operation of the air pump and water pump is also controlled by the main control module.

[0037] The gas-liquid mixing and cavitation module 5 uses high-pressure gas to impact the cleaning liquid, utilizes gas dissolution and cavitation effect to generate multi-scale bubbles, and simultaneously forms a high-energy multiphase jet due to the energy of compressed gas expansion. The gas-liquid mixing and cavitation module 5 is specifically a three-way gas-liquid mixing structure, that is, one way to enter gas, one way to enter liquid, and one way to output the mixed liquid; after the electric control valve is opened, the high-pressure gas of the gas storage bottle impacts the liquid at high speed in the gas-liquid three-way mixing structure, realizes gas-liquid mixed output, and forms a high-speed multiphase jet of a large number of multi-scale bubble mixtures. In order to improve the efficiency of bubble generation, an ultrasonic transducer is set at any node between the liquid storage bottle and the multi-channel gating module 7, and the generation of micro-nano bubbles is realized by ultrasonic vibration. In order to improve the efficiency of bubble generation, a spiral structure can also be designed inside the three-way gas-liquid mixing structure.

[0038] The multi-channel gating module 7 guides the high-speed multi-phase jet generated by the gas-liquid mixture and cavitation module 5 to the target branch channel of the intraoral spray element 9, and each channel is time-divided to concentrate the jet energy to act on the local cleaning area of ​​the oral cavity, reduce the total energy of the jet, and avoid the side effects caused by excessive impact force on the oral cavity. Figure 2As shown, the specific structure of the multi-channel gating module 7 is composed of a multiphase flow input pipe 10, a buffer chamber 20, a rotating switching turntable 13, a rotating motor 11, a rotating disk output port 16 and a position sensor. The buffer chamber 20 is divided into an upper part and a lower part. The upper part is an upper cover 201, and the lower part is a main cavity 202. The upper cover 201 and the main cavity 202 are connected as a whole by bolts and nuts, and a sealing ring B15 is provided at the connection; a through hole is provided in the center of the upper cover 201 for inserting the top cylinder of the rotating switching turntable 13, and a through hole is provided in the center of the main cavity 202 for inserting the bottom cylinder of the rotating switching turntable 13; one end of the multiphase flow input pipe 10 is connected to the output port of the gas-liquid mixing and cavitation module 5 through the multiphase jet main line 6, and the multiphase flow input The other end of the tube 10 extends into the buffer cavity 20; the rotating motor shaft 12 is connected to the rotating switching turntable 13, and a turntable output port 16 is provided on the rotating switching turntable 13. The main body of the rotating switching turntable 13 is located inside the buffer cavity 20, and a sealing ring A14 is provided between the bottom cylinder of the rotating switching turntable 13 and the upper port of the main cavity 202; the upper cover 201 is also clamped with an intraoral spray interface 19, and a buffer pad 18 is provided between the bottom of the intraoral spray interface 19 and the upper cover 201; the multi-channel selection branch pipeline 21 is inserted into the intraoral spray interface 19; the upper cover of the buffer cavity 20 and the buffer pad 18 are both provided with through holes corresponding to the branches of the multi-channel selection branch pipeline 21, and a sealing pad 17 is also provided in the through hole of the upper cover of the buffer cavity 20. The position sensor is arranged on the bottom cylinder of the rotating switching turntable 13, and is used to determine that the turntable output port 16 is aligned with the through hole of the upper cover of the buffer cavity 20.

[0039] The working principle of the multi-channel gating module 7 is: the main control module controls the operation of the rotating motor 11, and driven by the rotating motor 11, the rotating switching turntable 13 rotates. When the turntable output port 16 of the rotating switching turntable 13 is aligned with the target branch path of the intra-oral spray piece 9 (sensed by the position sensor), the rotating motor 11 is controlled to stop rotating to complete the channel gating.

[0040] The multi-channel gating module 7 can also adopt a valve with one input end and multiple output ends. The input end is connected to the output port of the gas-liquid mixing and cavitation module 5. The number of output ends is the same as the number of branches of the multi-channel gating branch pipeline 21, and one output end is connected to a branch of the multi-channel gating branch pipeline 21. An electric-controlled valve is installed at each output end. The main control module selects the electric-controlled valve that needs to be connected to the branch to open, and the remaining electric-controlled valves are closed to achieve channel gating.

[0041] The intraoral spray piece 9 includes a retention functional structure and a multiphase jet guiding functional structure. The retention functional structure refers to the design of the contact piece 22 on the labial and buccal sides and the lingual sides of the teeth, so that the intraoral spray piece 9 can be placed in the mouth stably and comfortably; the multiphase jet guiding functional structure refers to the design from the multi-channel selection branch pipeline 21 to the spray hole output port, and spray holes (including tooth maxillofacial spray holes 23, tooth labial and buccal spray holes 24 and tooth lingual spray holes 25) are set in the interproximal spaces and gingival margins that are difficult to clean, which are used to guide high-speed multiphase jets to form a strong impact on dirt and plaque. Further, the high-energy multiphase jet flows in the oral cavity, and the multi-scale bubble explosion in the fluid produces local high temperature and high pressure, which destroys the attachment of dirt and plaque, thereby achieving the purpose of cleaning the entire oral cavity.

[0042] Specific structure such as Figure 3 As shown in the figure, n branches (n=1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16) are uniformly distributed in the multi-channel gate branch pipeline 21; the shape of the contact piece 22 on the labial and buccal side and the lingual side of the tooth matches the structure of the human tooth, and the upper and lower sides of the contact piece 22 on the labial and buccal side and the lingual side of the tooth are designed with grooves arranged in the same manner as human teeth, and a plurality of tooth labial and buccal side nozzles 24 are arranged along the grooves of the contact piece 22 on the labial and buccal side and the lingual side of the tooth. The outer edge is continuously arranged, and multiple tooth lingual side spray holes 25 are continuously arranged along the inner edge of the groove of the contact piece 22 on the labial and buccal sides and the lingual sides of the teeth. Two groups of tooth maxillofacial spray holes 23 are also arranged in the groove between the tooth labial and buccal spray holes 24 and the tooth lingual side spray holes 25; all the spray holes are divided into n sets in a manner of continuous adjacent tooth positions and similar number of spray holes (the number of spray holes differs within 6), and the spray holes in the same set are connected to form a passage, with a total of n passages; the n passages and n branches are connected respectively. The spray holes of the intraoral spray piece 9 (including the tooth maxillofacial spray holes 23, the tooth labial and buccal spray holes 24 and the tooth lingual spray holes 25) all adopt a conical structure, and the smaller holes of the conical structure are located on the surface of the contact piece 22 on the labial and buccal sides and the lingual sides of the teeth, forming more micro-nano bubbles.

[0043] The above structure is a universal intraoral spray. The intraoral spray can also be customized. Its functional structure is the same as the universal type. The difference lies in: the fit of the spray and the accuracy of the spray hole position. The size and spray hole position of the customized type are more in line with the user's oral structure and have a better cleaning effect. For the customized type, according to the user's oral structure, digital modeling is used to obtain the user's maxillary dentition, mandibular dentition, upper and lower jaw occlusion relationship, and oral health status data for design. Digital modeling methods include but are not limited to intraoral scanning, X-ray scanning of the oral cavity, dental impression material molding and then extraoral scanning, intraoral photography, medical workers' intraoral diagnosis and data annotation, etc.

[0044] The design process of the intraoral spray piece 9 is as follows: first, based on the three-dimensional geometric data of the dentition (standard or personalized), a geometric tray structure (i.e., the contact piece 22 on the labial and buccal sides and lingual sides of the teeth) is generated, and further, through Boolean operations, a cavity is generated in the tray to be used as a high-energy jet path, and further, the cavity is divided into a plurality of separate and independent cleaning areas, one end of the entrance of each cleaning area is connected to a branch of the multi-channel gate branch pipeline 21, and the outlet of each cleaning area is a plurality of spray holes pointing to a specific spray position, and the position and direction of the spray holes should avoid the user's gingival area, and the position setting of the spray holes fully considers the tooth gap, gingival margin line, distal area, and the recessed area of ​​the implant attachment. For the personalized customized type, the position of the spray hole is also set according to the area including but not limited to the dentition structure, the personalized oral plaque residual location, and the user's special protection requirements (for example, including but not limited to the places where the restoration of dental implants, orthodontic brackets, fixed restorations, etc. has special cleaning requirements).

[0045] The above-mentioned contact pieces 22 on the labial and buccal sides and lingual sides of the teeth are a whole, and can clean the upper and lower jaws at the same time; in order to provide users with better cleaning effects and experiences, the contact pieces 22 on the labial and buccal sides and lingual sides of the teeth can be divided into two independent parts, and the two independent parts are respectively connected to a multi-channel selection branch pipeline 21. When in use, according to the cleaning needs of the upper or lower jaw, the multi-channel selection branch pipeline 21 corresponding to the contact pieces 22 for cleaning the labial and buccal sides and lingual sides of the teeth of the upper or lower jaw is selected to be inserted into the intra-oral spray piece interface 19.

[0046] like Figure 4 As shown, a method for using a tooth cleaning device of the present invention is as follows: a main control module controls the operation of a gas-liquid supply module, the gas-liquid supply module delivers cleaning liquid and compressed air to a gas-liquid mixing and cavitation module 5, the high-pressure gas in the gas-liquid mixing and cavitation module 5 impacts the cleaning liquid to form a high-speed multiphase jet mixed with a large number of multi-scale bubbles; the main control module controls the operation of a multi-channel gating module 7 to control the channel gating corresponding to the nozzle hole of the intra-oral spray piece 9 that needs to be sprayed, the high-speed multiphase jet flows through the multi-channel gating module 7 to the nozzle hole of the intra-oral spray piece 9 that needs to be sprayed, and cleans the area in the oral cavity that needs to be cleaned; when all channels of the intra-oral spray piece 9 are polled and turned on once, the oral cleaning is completed, and the process of channel polling and turning on can be paused under the control of the main control module.

[0047] The embodiments are preferred implementations of the present invention, but the present invention is not limited to the above-mentioned implementations. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essential content of the present invention belong to the protection scope of the present invention.

Claims

1. A tooth cleaning device, characterized in that: include: The gas-liquid supply module comprises a gas delivery power component (1) and a liquid delivery power component (2), and is used for delivering cleaning liquid and compressed air; The gas-liquid mixing and cavitation module (5) is connected to the gas-liquid supply module, and the high-pressure gas inside the gas-liquid mixing and cavitation module (5) impacts the cleaning liquid to form a high-energy multiphase jet; A multi-channel gating module (7) comprises a multiphase flow input pipe (10), a rotating motor (11), a rotating switching turntable (13) and a buffer chamber (20); the buffer chamber (20) is composed of a concave upper cover (201) and a main chamber (202); the rotating switching turntable (13) is located between the upper cover (201) and the main chamber (202) to form a sealing structure; the rotating switching turntable (13) is connected to the rotating shaft of the rotating motor (11); a turntable output port (16) is provided on the rotating switching turntable (13); the multiphase flow input pipe (10) is used to connect the output port of the gas-liquid mixing and cavitation module (5) and the buffer chamber (20); An intraoral spray piece (9) comprises a multi-channel gated branch pipeline (21) connected to each other and contact pieces (22) on the labial, buccal and lingual sides of teeth, wherein the multi-channel gated branch pipeline (21) is sealedly connected to the top of an upper cover (201); and the branches of the multi-channel gated branch pipeline (21) correspond to the through holes on the upper cover (201).

2. The tooth cleaning device according to claim 1, characterized in that The contact pieces (22) on the buccal and lingual sides of the teeth are integral structures, and grooves are designed on the upper and lower sides thereof in the same arrangement as human teeth. A plurality of buccal and lingual spray holes (24) are continuously arranged along the outer edge of the groove, and a plurality of lingual spray holes (25) are continuously arranged along the inner edge of the groove. Two groups of maxillofacial spray holes (23) are also arranged in the groove. The multi-path selection branch pipeline (21) is provided with n branches, and all the spray holes are divided into n groups in a manner of continuous adjacent tooth positions and similar numbers of spray holes. The spray holes in the same group are connected to form a path, with a total of n paths. The n paths and n branches are connected respectively, where n=1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16.

3. The teeth cleaning device according to claim 2, characterized in that The upper and lower side surfaces of the contact piece (22) on the labial and buccal sides and the lingual sides of the tooth are independent parts, and the two independent parts are respectively connected to a multi-channel selection branch pipeline (21), and the independent parts are selected for use according to needs.

4. The teeth cleaning device according to claim 2, characterized in that For the customized intraoral spray piece (9), the position of the spray hole is set according to the user's needs, which include but are not limited to the dentition structure, the personalized oral plaque residue location, and the user's special protection requirements, which include but are not limited to implant restorations, orthodontic brackets, and fixed restorations.

5. The teeth cleaning device according to claim 1, characterized in that The multi-channel gating module (7) is replaced by a valve having one input end and multiple output ends, the input end is connected to the output port of the gas-liquid mixing and cavitation module (5), and one output end is connected to a branch of the multi-channel gating branch pipeline (21), and an electric control valve is installed at each output end. By controlling the electric control valve of the branch to be connected to open and the other electric control valves to close, channel gating is achieved.

6. The teeth cleaning device according to claim 1, characterized in that The gas delivery power component (1) comprises an air pump and a gas storage bottle connected to each other, the air pump is used to generate compressed gas, the gas storage bottle is used to buffer compressed air, the gas storage bottle and the gas-liquid mixture are connected to the cavitation module (5), and an electric control valve is provided on the connecting pipeline.

7. The teeth cleaning device according to claim 1, characterized in that The liquid delivery power component (2) comprises a liquid storage bottle and a water pump which are connected to each other, and the water pump delivers the clean liquid in the liquid storage bottle to the gas-liquid mixing and cavitation module (5).

8. The teeth cleaning device according to claim 1, characterized in that An ultrasonic transducer is arranged at any node between the liquid storage bottle and the multi-channel gating module (7).

9. The teeth cleaning device according to claim 1, characterized in that The gas-liquid mixing and cavitation module (5) is provided with a spiral structure inside.

10. A teeth cleaning method based on the teeth cleaning device according to any one of claims 1 to 9, characterized in that: The main gas-liquid supply module delivers the cleaning liquid and compressed air to the gas-liquid mixing and cavitation module (5), and in the gas-liquid mixing and cavitation module (5), the high-pressure gas impacts the cleaning liquid to form a high-speed multiphase jet mixed with a large number of multi-scale bubbles; The multi-channel gating module (7) works to control the gating of the branches corresponding to the spray holes of the intra-oral spray piece (9) that need to be sprayed, and the high-speed multi-phase jet flows through the multi-channel gating module (7) to the spray holes of the intra-oral spray piece (9) that need to be sprayed, thereby cleaning the areas in the oral cavity that need to be cleaned.

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