Oral cleaning influence factor analysis method

Abstract

The invention relates to an oral cavity cleaning influence factor analysis method. The method comprises the following steps: providing a to-be-cleaned dental cast, a toothbrush and toothpaste; an oral cavity cleaning influence factor analysis platform is provided, the oral cavity cleaning influence factor analysis platform comprises an action simulation mechanism and a tooth model installation mechanism, the action simulation mechanism is used for installing a toothbrush and simulating tooth brushing actions, and the tooth model installation mechanism is used for installing a tooth model to be cleaned; after the action simulation mechanism executes the tooth brushing action for a preset time, a cleaned dental cast is obtained, and cleanliness data of the cleaned dental cast relative to the dental cast to be cleaned is obtained; after adjusting at least one of action parameters of the toothbrush, the toothpaste and the action simulation mechanism, repeating the steps to obtain multiple groups of cleanliness data; and counting and analyzing multiple groups of cleanliness data to obtain the effect quantity of at least one of the toothbrush, the toothpaste and the action parameters, namely obtaining the contribution degrees of the factors to the cleaning efficiency, so that clearer guidance is provided for a user or a designer.

Description

Technical Field

[0001] The present invention relates to the technical field of oral cleaning, and in particular to a method for analyzing factors affecting oral cleaning. Background Art

[0002] Oral cleaning efficiency is affected by many factors, such as the type of toothpaste and toothbrush, brushing action, strength, time, etc. On the one hand, the performance of oral care products such as toothpaste and toothbrushes on the market varies greatly. On the other hand, users also lack scientific guidance on brushing action, strength and time. For example, most of the time, users will choose toothpaste and toothbrushes based on advertisements, but it is difficult to know the effect of factors such as toothpaste type, toothbrush type, brushing action and brushing time on oral cleaning efficiency, that is, the degree of influence. Therefore, they may spend too much on factors with low influence. For example, in the process of designing electric toothbrushes or other oral cleaning equipment, it is difficult to clearly know the effect of multiple factors that affect oral cleaning efficiency (such as component structure, vibration strength, time, etc.) on oral cleaning efficiency. Therefore, it may be difficult to clarify the design focus and waste costs on factors with low influence. Summary of the invention

[0003] The embodiment of the present invention provides a method for analyzing factors affecting oral cleaning, which is convenient for analyzing the influence degree of various factors affecting oral cleaning efficiency and provides clearer guidance for users and designers.

[0004] A method for analyzing factors affecting oral hygiene, comprising the following steps:

[0005] S10: providing a tooth mold to be cleaned, a toothbrush and a toothpaste, wherein the tooth mold to be cleaned includes an initial tooth mold and a dental plaque simulant attached to the initial tooth mold, and the toothpaste is attached to the toothbrush;

[0006] S20: providing an oral cleaning influencing factor analysis platform, the oral cleaning influencing factor analysis platform comprising an action simulation mechanism and a tooth mold installation mechanism, the action simulation mechanism is used to install the toothbrush and simulate the brushing action, and the tooth mold installation mechanism is used to install the tooth mold to be cleaned;

[0007] S30: After the action simulation mechanism performs the brushing action for a preset time, a clean dental mold is obtained, and cleanliness data of the clean dental mold relative to the dental mold to be cleaned is obtained;

[0008] S40: after adjusting at least one of the action parameters of the toothbrush, the toothpaste and the action simulation mechanism, repeating the above steps S10, S20 and S30 to obtain multiple sets of cleanliness data; and

[0009] S50: Statistically analyzing the multiple groups of cleanliness data to obtain the effect size of at least one of the toothbrush, the toothpaste and the action parameter.

[0010] In one embodiment, the motion parameter includes at least one of a reciprocating distance, a reciprocating number, a reciprocating speed, a reciprocating acceleration, a pressing force, and an eversion angle.

[0011] In one embodiment, at least two of the preset time, the reciprocating distance, the number of reciprocating times, the reciprocating speed, the reciprocating acceleration, the pressing force and the eversion angle are coupled to each other, and in step S50, the guided least squares regression method is used to calculate the effect amount of at least one of the toothbrush, the toothpaste and the action parameters.

[0012] In one embodiment, the initial dental model is formed by using 3D scanning technology combined with 3D printing technology to simulate the physiological structure of teeth, gums and tooth gaps.

[0013] In one embodiment, the initial dental mold has an occlusal direction, and after being installed on the dental mold installation mechanism, the occlusal direction is parallel to the third direction; the action simulation mechanism includes a first transfer module, a second transfer module connected to the output end of the first transfer module, and an eversion module connected to the output end of the second transfer module, and the toothbrush is installed on the eversion module; the first transfer module is used to drive the second transfer module, the eversion module and the toothbrush to reciprocate along the first direction relative to the dental mold to be cleaned to simulate a lateral cleaning action, the second transfer module is used to drive the eversion module and the toothbrush to move along the second direction relative to the dental mold to be cleaned to apply pressure to the dental mold to be cleaned, and the eversion module is used to drive the toothbrush to swing relative to the dental mold to be cleaned to simulate a swinging cleaning action, and the first direction, the second direction and the third direction are orthogonal to each other.

[0014] In one embodiment, the tooth mold mounting mechanism includes a connecting seat and a first pressure sensor connected to the connecting seat, and a second pressure sensor connected to the first pressure sensor, and the tooth mold to be cleaned is mounted on the second pressure sensor; the first pressure sensor is used to detect the first pressure applied to the tooth mold to be cleaned in the second direction, and the second pressure sensor is used to detect the second pressure applied to the tooth mold to be cleaned in the third direction; the oral cleaning influencing factor analysis platform includes a controller, the first pressure sensor and the second pressure sensor are respectively connected to the controller for communication, and the controller is configured as follows:

[0015] determining whether the first pressure exceeds a first threshold, and determining whether the second pressure exceeds a second threshold;

[0016] When the first pressure exceeds the first threshold, the second transfer module is controlled to stop feeding in the second direction; when the second pressure exceeds the second threshold, the outside-outward movement module is controlled to stop feeding in the third direction.

[0017] In one embodiment, step S10 includes:

[0018] preparing the dental plaque simulation, and photographing the initial dental model before applying the dental plaque simulation to obtain a first image;

[0019] Applying the dental plaque simulant on the initial dental model;

[0020] placing the initial dental model coated with the dental plaque simulation in a constant temperature box to solidify the dental plaque simulation to obtain the dental model to be cleaned; and

[0021] The dental mold to be cleaned is taken out, cooled to room temperature, and photographed to obtain a second image.

[0022] In one embodiment, step S30 includes:

[0023] Placing the to-be-cleaned dental mold after brushing in the constant temperature box for drying to obtain the cleaned dental mold;

[0024] Taking out the cleaned dental mold and cooling it to room temperature; and

[0025] Taking a photo of the cleaned dental model to obtain a third image; and

[0026] Image recognition processing is performed on the first image, the second image, and the third image to obtain the cleanliness data.

[0027] In one embodiment, before placing the tooth mold to be cleaned after the tooth brushing action in the constant temperature box, the method further comprises:

[0028] The tooth mold to be cleaned is rinsed after the teeth brushing action.

[0029] In one embodiment, before placing the initial dental model coated with the dental plaque simulator in a constant temperature box, the method further comprises:

[0030] Preheat the incubator.

[0031] In the above method for analyzing factors affecting oral hygiene, an initial dental model with a dental plaque simulator attached thereto is installed on a dental model installation mechanism, and an action simulation mechanism drives a toothbrush installed thereon to simulate a brushing action. After cleaning the toothbrush to be cleaned, the cleanliness data of the clean dental model relative to the toothbrush to be cleaned can be obtained; after adjusting at least one of the action parameters of the toothbrush, toothpaste and action simulation mechanism, the above steps are repeated again to obtain multiple sets of cleanliness data; after statistical analysis of multiple sets of cleanliness data, the effect size of at least one of the toothbrush, toothpaste and action parameters can be obtained, that is, the degree of influence of these factors on the cleaning efficiency, that is, the degree of contribution of these factors to the cleaning efficiency, thereby providing users or designers with clearer guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 A schematic diagram of an oral hygiene influencing factor analysis platform according to an embodiment;

[0034] Figure 2 is a flow chart of a method for analyzing factors affecting oral hygiene according to an embodiment;

[0035] Figure 3 is a schematic diagram of an initial dental model according to an embodiment;

[0036] Figure 4 for Figure 2 The flowchart of step S10 of the method for analyzing factors affecting oral hygiene is shown;

[0037] Figure 5 for Figure 2 Flow chart of step S30 of the method for analyzing factors affecting oral cleaning. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Preferred embodiments of the present invention are provided in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] refer to Figure 1 and Figure 2 The present application discloses a method for analyzing factors affecting oral cleaning, which can be used to conduct experimental research on various factors affecting the efficiency of oral cleaning, and then statistically analyze the effect size of these factors, that is, the degree of influence of these influencing factors on the efficiency of oral cleaning. For example, using the method for analyzing factors affecting oral cleaning of the present application, different electric toothbrushes or ordinary toothbrushes can be replaced to study the effect size of the type of toothbrush on the efficiency of oral cleaning. For another example, different pressure strengths, speeds, times, methods, etc. of the brushing action can be replaced to study the effect size of these factors on the efficiency of oral cleaning. After obtaining the effect size of these factors on the efficiency of oral cleaning, users can choose various consumer goods required for oral cleaning more scientifically, and avoid spending too much on unimportant influencing factors. For manufacturers of oral cleaning equipment, they can design oral cleaning equipment more specifically based on the effect size of these factors, avoid investing too much cost in unimportant influencing factors, thereby optimizing the design and saving costs.

[0042] Specifically, the oral hygiene influencing factor analysis method of the present application can be adopted Figure 1The oral cleaning influencing factor analysis platform 10 shown is implemented, and the oral cleaning influencing factor analysis platform 10 may include a mounting seat 100, an action simulation mechanism 200 and a tooth mold mounting mechanism 300. The action simulation mechanism 200 and the tooth mold mounting mechanism 300 are respectively mounted on the mounting seat 100, and the mounting seat 100 plays a supporting and limiting role, and through the cooperation of the mounting holes 101 arranged in an array of the mounting seat 100 and fasteners such as bolts, the position of the action simulation mechanism 200 and the tooth mold mounting mechanism 300 on the mounting seat 100 is conveniently adjusted, thereby reducing the difficulty of assembly and improving the efficiency of assembly. The action simulation mechanism 200 is used to install a toothbrush (not shown) and simulate the brushing action. The toothbrush can be an electric toothbrush or an ordinary toothbrush such as a common hard straight-handled toothbrush. The tooth mold mounting mechanism 300 is used to install the tooth mold to be cleaned.

[0043] Combined with Figure 3 , the dental mold to be cleaned may include an initial dental mold 20 and a dental plaque simulation (not shown) attached to the surface of the initial dental mold 20 to simulate real teeth. The initial dental mold 20 can be processed and formed by 3D scanning technology combined with 3D printing technology, that is, scanning human teeth and gums by 3D scanning technology, and then forming by 3D printing technology, so as to obtain a model closer to the physiological structure of the human body, so as to obtain more accurate analysis results. For example, the initial dental mold 20 may include a base 21 and a plurality of teeth 23 protruding from the base 21, and the plurality of teeth 23 are arranged in sequence according to the shape of the gum arc. The shape of the joint between the base 21 and the teeth 23 is close to the surface shape of the gums, and the state of the human tooth gap can be simulated between adjacent teeth 23. This model structure close to the real physiological structure is more conducive to obtaining accurate analysis results and can also make the analysis results more credible.

[0044] The action simulation mechanism 200 is used to simulate the tooth cleaning action of the user, and may include a first transfer module 211 connected to the mounting seat 100, a second transfer module 213 connected to the output end of the first transfer module 211, and an eversion module 215 connected to the output end of the second transfer module 213, and the toothbrush is installed in the eversion module 215. The first transfer module 211 can be implemented by a motor-driven ball screw structure, and the second transfer module 213 and the eversion module 215 connected to the second transfer module 213 are driven by the output end thereof to move relative to the tooth mold to be cleaned, thereby simulating the tooth brushing action of the user. Specifically, the first transfer module 211 can drive the second transfer module 213, the eversion module 215 and the toothbrush to reciprocate relative to the tooth mold to be cleaned along the first direction (X-axis direction) to simulate the horizontal cleaning action. The second transfer module 213 can drive the external eversion module 215 and the toothbrush to move relative to the dental model to be cleaned along the second direction (Y-axis direction) to apply pressure to the dental model to be cleaned, that is, to simulate the user's pressing action on the teeth with a toothbrush. The external eversion module 215 can drive the toothbrush to swing relative to the dental model to be cleaned to simulate the swing cleaning action, that is, to drive the toothbrush to swing around the first direction.

[0045] Further, it can be considered that the initial dental model 20 has an occlusal direction, that is, the relative movement direction of the upper and lower teeth. Figure 1 In the illustrated embodiment, after the initial dental mold 20 is installed on the tooth mold installation mechanism 300, the occlusal direction can be considered to be perpendicular to the mounting seat 100 or along the vertical direction, or parallel to the gravity direction. For ease of description, a third direction (Z-axis direction) can be determined, the occlusal direction is parallel to the third direction, and the first direction, the second direction and the third direction are orthogonal to each other. The central axis of the tooth portion 23 of the initial dental mold 20 extends substantially along the vertical direction, and the occlusal direction is orthogonal to the rotation axis of the eversion module 215. This structural setting can more realistically simulate the scene of the user brushing teeth. The action simulation mechanism can simulate the horizontal cleaning action of the user's hand on the teeth, and the eversion module can simulate the vertical swing cleaning action of the user on the teeth. Compared with placing the tooth portion 23 horizontally, that is, making the central axis of the tooth portion 23 parallel to the horizontal plane, and then driving the cleaning member to clean the tooth portion 23 on the horizontal plane, the influence of other factors on the analysis results can be reduced, and the accuracy and credibility of the analysis results can be ensured.

[0046] It is understood that in the embodiments of the present application, parallelism and orthogonality should not be regarded as geometric relationships in a strict sense, but the existence of engineering errors should be considered. For example, when the angle between two lines is in the range of 85 degrees to 95 degrees, the two lines can be regarded as orthogonal in engineering. Of course, in other embodiments, any two of the first direction, the second direction, and the third direction may not be orthogonal, and the execution action of the action simulation mechanism 200 can be adaptively adjusted.

[0047] The first transfer module 211 can be driven by a motor to rotate the ball screw, and the second transfer module 213, the external module 215 and the toothbrush can be driven to move back and forth in the first direction through the screw nut; the second transfer module 213 can also be driven by a motor to rotate the ball screw, and the external module 215 and the toothbrush can be driven to move in the second direction through the screw nut; the external module 215 can be driven by a motor to drive the chuck, such as a four-claw chuck, to rotate around the first direction, and then drive the toothbrush clamped in the chuck to perform a yaw motion relative to the tooth mold to be cleaned. The motor can be a stepping motor, and combined with the ball screw, more precise displacement control can be performed.

[0048] refer to Figure 2 , the method for analyzing factors affecting oral hygiene includes the following steps:

[0049] S10: providing a dental mold to be cleaned, a toothbrush and toothpaste, wherein the dental mold to be cleaned comprises an initial dental mold 20 and a dental plaque simulant attached to the initial dental mold 20, and the toothpaste is attached to the toothbrush.

[0050] The initial dental model 20 can be referenced Figure 3 The surface of the toothbrush can be used to attach dental plaque simulation to form a tooth model to be cleaned. Toothpaste and toothbrush are not shown in this application.

[0051] Further, refer to Figure 4 , step S10 may include the following steps.

[0052] S110: Prepare a dental plaque simulation, and take a photo of the initial dental mold 20 before applying the dental plaque simulation to obtain a first image.

[0053] The dental plaque simulant can be formed by mixing crushed food with water to simulate dental plaque. Before applying the dental plaque simulant to the clean initial dental mold 20, the initial dental mold 20 can be photographed to facilitate numbering the initial dental mold 20 to record the experimental results. The first image can also be used as a reference benchmark for cleanliness.

[0054] S120: Apply dental plaque simulation on the initial dental model 20.

[0055] This step is used to apply dental plaque simulant to the initial dental mold 20, so that the dental plaque simulant adheres to the surface of the initial dental mold 20, for example, adheres to the teeth of the initial dental mold 20, or adheres to the teeth and base of the initial dental mold 20, thereby obtaining the dental mold to be cleaned for subsequent toothbrush cleaning experiments.

[0056] S130: placing the initial dental model 20 coated with the dental plaque simulation in a constant temperature box to solidify the dental plaque simulation to obtain a dental model to be cleaned.

[0057] Specifically, before placing the initial dental mold 20 coated with dental plaque simulants in the thermostat, the thermostat may be preheated. For example, the temperature in the thermostat is set to 60 degrees, and the thermostat is turned on in advance for preheating, so that the temperature in the thermostat is stabilized in advance, so that the curing conditions of the multiple initial dental molds 20 coated with dental plaque simulants are consistent, reducing the interference of the curing temperature on the experimental results.

[0058] When the initial dental mold 20 coated with dental plaque simulant is placed in a constant temperature box for a period of time, such as 50 minutes to 60 minutes, the dental plaque simulant is solidified on the surface of the initial dental mold 20, thereby preventing the dental plaque simulant from easily peeling off from the initial dental mold 20 in subsequent toothbrush cleaning experiments and reducing the accuracy and credibility of the experimental results.

[0059] S140, taking out the dental mold to be cleaned, cooling it to room temperature, taking a photo, and obtaining a second image.

[0060] In this step, after the initial dental mold 20 with cured dental plaque simulation is taken out of the constant temperature box, it can be cooled for 20 minutes to 30 minutes to cool it to room temperature, so that the toothbrush cleaning experimental conditions of multiple initial dental molds 20 are basically consistent, reducing the interference of temperature on the experimental results.

[0061] The second image is the image of the dental model to be cleaned, which can be used to calculate and obtain cleanliness data later.

[0062] S20: Provide an oral cleaning influencing factor analysis platform 10, which includes a motion simulation mechanism 200 and a tooth mold installation mechanism 300. The motion simulation mechanism 200 is used to install a toothbrush and simulate brushing action, and the tooth mold installation mechanism 300 is used to install a tooth mold to be cleaned.

[0063] In this step, the dental mold to be cleaned is installed on the dental mold installation mechanism 300, so that the occlusal direction of the initial dental mold 20 is basically consistent with the gravity direction; after the toothbrush with toothpaste attached is installed on the chuck of the eversion module 215, or the toothbrush is first installed on the chuck of the eversion module 215 and then toothpaste is applied to the toothbrush, the oral cleaning factor analysis platform can be started to conduct a dental mold cleaning experiment on the dental mold to be cleaned.

[0064] S30: After the action simulation mechanism 200 performs the tooth brushing action for a preset time, a clean dental model is obtained, and cleanliness data of the clean dental model relative to the to-be-cleaned dental model is obtained.

[0065] In this step, the reciprocating distance, number of reciprocating times, reciprocating speed, reciprocating acceleration of the toothbrush in the first direction, the pressing force in the second direction, and the eversion angle and other parameters can be set. When the eversion angle is zero, the toothbrush does not perform the eversion action. In some embodiments, the amount of cleaning water during the dental mold cleaning experiment can also be set, such as maintaining a constant supply of water, or not providing water.

[0066] During this process, the toothbrush cleans the dental model to be cleaned, and can clean the dental plaque simulation attached to the surface of the initial dental model 20 .

[0067] In particular, refer to Figure 1 In some embodiments, the tooth mold installation mechanism 300 may include a connection seat 310 and a first pressure sensor 320 connected to the connection seat 310, and a second pressure sensor 330 connected to the first pressure sensor 320, and the tooth mold to be cleaned is installed on the second pressure sensor 330. The first pressure sensor 320 is used to detect the first pressure on the tooth mold to be cleaned in the second direction, and the second pressure sensor 330 is used to detect the second pressure on the tooth mold to be cleaned in the third direction. The oral cleaning influencing factor analysis platform 10 may include a controller, and the first pressure sensor 320 and the second pressure sensor 330 are respectively connected to the controller for communication, and the controller is configured as follows:

[0068] Determine whether the first pressure exceeds a first threshold, and determine whether the second pressure exceeds a second threshold;

[0069] When the first pressure exceeds the first threshold, the second transfer module 213 is controlled to stop feeding in the second direction; when the second pressure exceeds the second threshold, the external turning module 215 is controlled to stop feeding in the third direction.

[0070] The control method of combining the first pressure sensor 320 and the second pressure sensor 330 with the controller can realize closed-loop control of the pressure applied by the toothbrush to the dental mold to be cleaned, that is, more accurately control the pressure applied to the dental mold to be cleaned in the first direction and the third direction, stop further pressure when the pressure is too high, and increase the pressure when the pressure is too low. When changing different dental molds to be cleaned or different toothbrushes, or changing the feeding range, the consistency of the cleaning operation is ensured to avoid the accuracy and credibility of the analysis results being affected by too little or too much cleaning force.

[0071] refer to Figure 5 , step S30, may further include the following steps:

[0072] S310: placing the to-be-cleaned dental mold after the teeth brushing action in a constant temperature box for drying to obtain a cleaned dental mold.

[0073] The temperature in the constant temperature box can still be set to 60 degrees, and the drying time can be set to 30min-40min, so that the surface of the cleaned dental mold is basically dry, which is convenient for subsequent photography and image recognition.

[0074] S320, take out the cleaned dental mold and cool it to room temperature.

[0075] In this step, after the clean dental mold is taken out of the constant temperature box, it can be cooled for 20 minutes to 30 minutes to cool it to room temperature, so that the photographing conditions of multiple clean dental molds are basically consistent, reducing the interference of temperature on the experimental results.

[0076] S330: Take a photo of the cleaned dental model to obtain a third image.

[0077] S340: Perform image recognition processing on the first image, the second image and the third image to obtain cleanliness data.

[0078] In this step, the first image is the image of the initial dental mold 20 in a clean state, which can be used as the background data of the second image and the third image. Through software such as MATLAB, it can be simply understood as removing the background grayscale data of the pixels corresponding to the first image from the second image and the third image respectively, and then comparing and analyzing the processed third image and the second image. For example, after statistically analyzing the background grayscale data of the pixels corresponding to the first image and the third image are removed from the second image, the proportion of pixels below a certain grayscale threshold in the entire image can be regarded as cleanliness data.

[0079] S40: After adjusting at least one of the action parameters of the toothbrush, toothpaste and the action simulation mechanism 200, the above steps S10, S20 and S30 are repeated to obtain multiple sets of cleanliness data.

[0080] This step is to install a new tooth model to be cleaned, and repeat the tooth model cleaning experiment after adjusting at least one of the toothbrush, toothpaste and the action parameters of the action simulation mechanism 200. It is understandable that toothpaste can be reapplied for each experiment, and the toothbrush does not need to be replaced every time.

[0081] In particular, before placing the tooth mold to be cleaned after the tooth brushing action in a constant temperature box, the tooth mold to be cleaned after the tooth brushing action can also be rinsed, for example, the tooth mold to be cleaned after the experiment is rinsed for 5s-6s to clean off the dental plaque simulants free on the surface of the initial tooth mold. These free dental plaque simulants are similar to foreign objects remaining in the oral cavity after a person brushes his teeth, and can be easily detached from the tooth surface after rinsing the mouth with water. These free dental plaque simulants should be washed away to avoid reducing the accuracy of the cleanliness data in subsequent image recognition. It is understandable that in this process, the water pressure for cleaning should be small to avoid excessive water pressure from washing away those stably attached dental plaque simulants that are not removed by the toothbrush, thereby reducing the accuracy of the cleanliness data.

[0082] S50: Statistically analyzing multiple groups of cleanliness data to obtain the effect size of at least one of the toothbrush, toothpaste and action parameters.

[0083] By summarizing all the experimental data and combining them with statistical analysis theory, we can obtain the effect sizes of parameters such as toothbrush, toothpaste, preset time, reciprocating distance, number of reciprocating times, reciprocating speed, reciprocating acceleration, pressure and eversion angle, that is, the contribution of these parameters to cleaning efficiency.

[0084] In particular, the applicant found through statistical analysis that at least two of the preset time, reciprocating distance, number of reciprocating times, reciprocating speed, reciprocating acceleration, pressing force and eversion angle are coupled, that is, when one of the parameters changes, the effect size of the other parameter will also change accordingly. Therefore, in step S50, the guided least squares regression method and other methods can be used to calculate the effect size of at least one of these parameters to obtain a more accurate analysis result.

[0085] For example, after conducting 192 experiments, the applicant statistically analyzed and obtained the analysis results of the influence of toothbrush types on oral cleaning efficiency shown in Table 1. The experimental analysis found that the effect sizes of manual toothbrushes and electric toothbrushes on cleaning efficiency are equivalent, that is, the influence of toothbrush types on cleaning efficiency is not significant. The effect size of toothbrush types on oral cleaning efficiency is significantly smaller than the effect size of brushing action on oral cleaning efficiency. Therefore, users or designers can pay more attention to brushing action, such as using a manual toothbrush to improve brushing action to improve oral cleaning efficiency and reduce the consumption cost of electric toothbrushes. Designers can use the oral cleaning influencing factor analysis platform 10 and oral cleaning influencing factor analysis method of the present application to analyze the effect size of factors such as the vibration intensity, vibration frequency, and toothbrush structure of electric toothbrushes on oral cleaning efficiency and obtain clearer design guidance.

[0086] Table 1 Analysis results of the influence of toothbrush types on oral cleaning efficiency

[0087]

[0088] In the above method for analyzing factors affecting oral cleaning, an initial dental model 20 with a dental plaque simulator attached thereto is installed on a dental model installation mechanism 300, and the action simulation mechanism 200 drives a toothbrush installed thereon to simulate a brushing action. After cleaning the toothbrush to be cleaned, the cleanliness data of the clean dental model relative to the toothbrush to be cleaned can be obtained; after adjusting at least one of the action parameters of the toothbrush, toothpaste and action simulation mechanism 200, the above steps are repeated again to obtain multiple sets of cleanliness data; after statistically analyzing multiple sets of cleanliness data, the effect size of at least one of the toothbrush, toothpaste and action parameters can be obtained, that is, the degree of influence of these factors on the cleaning efficiency, that is, the degree of contribution of these factors to cleaning, thereby providing clearer guidance for users or designers.

[0089] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0090] The above-mentioned embodiments only express several implementation methods of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A method for analyzing factors affecting oral hygiene, characterized in that: The following steps are involved: S10: providing a tooth mold to be cleaned, a toothbrush and a toothpaste, wherein the tooth mold to be cleaned includes an initial tooth mold and a dental plaque simulant attached to the initial tooth mold, and the toothpaste is attached to the toothbrush; S20: providing an oral cleaning influencing factor analysis platform, the oral cleaning influencing factor analysis platform comprising an action simulation mechanism and a tooth mold installation mechanism, the action simulation mechanism is used to install the toothbrush and simulate the brushing action, and the tooth mold installation mechanism is used to install the tooth mold to be cleaned; S30: After the action simulation mechanism performs the brushing action for a preset time, a clean dental mold is obtained, and cleanliness data of the clean dental mold relative to the dental mold to be cleaned is obtained; S40: after adjusting at least one of the action parameters of the toothbrush, the toothpaste and the action simulation mechanism, repeating the above steps S10, S20 and S30 to obtain multiple sets of cleanliness data; as well as S50: Statistically analyzing the multiple groups of cleanliness data to obtain the effect size of at least one of the toothbrush, the toothpaste and the action parameter.

2. The method for analyzing factors affecting oral hygiene according to claim 1, characterized in that: The motion parameter includes at least one of a reciprocating distance, a reciprocating number, a reciprocating speed, a reciprocating acceleration, a pressing force, and an eversion angle.

3. The method for analyzing factors affecting oral hygiene according to claim 2, characterized in that: There is a coupling relationship between at least two of the preset time, the reciprocating distance, the number of reciprocating times, the reciprocating speed, the reciprocating acceleration, the pressing force and the eversion angle, and in step S50, the guided least squares regression method is used to calculate the effect amount of at least one of the toothbrush, the toothpaste and the action parameters.

4. The method for analyzing factors affecting oral hygiene according to claim 2, characterized in that: The initial dental model is formed by using 3D scanning technology combined with 3D printing technology to simulate the physiological structure of teeth, gums and tooth gaps.

5. The method for analyzing factors affecting oral hygiene according to claim 4, characterized in that: The initial tooth mold has an occlusal direction, and after being installed on the tooth mold installation mechanism, the occlusal direction is parallel to the third direction; the action simulation mechanism includes a first transfer module, a second transfer module connected to the output end of the first transfer module, and an eversion module connected to the output end of the second transfer module, and the toothbrush is installed on the eversion module; The first transfer module is used to drive the second transfer module, the eversion module and the toothbrush to reciprocate along the first direction relative to the dental mold to be cleaned to simulate a lateral cleaning action, the second transfer module is used to drive the eversion module and the toothbrush to move along the second direction relative to the dental mold to be cleaned to apply pressure to the initial dental mold, and the eversion module is used to drive the toothbrush to swing relative to the dental mold to be cleaned to simulate a swinging cleaning action, and the first direction, the second direction and the third direction are orthogonal to each other.

6. The method for analyzing factors affecting oral hygiene according to claim 5, characterized in that: The tooth mold mounting mechanism includes a connecting seat and a first pressure sensor connected to the connecting seat, and a second pressure sensor connected to the first pressure sensor, and the tooth mold to be cleaned is mounted on the second pressure sensor; the first pressure sensor is used to detect the first pressure applied to the tooth mold to be cleaned in the second direction, and the second pressure sensor is used to detect the second pressure applied to the tooth mold to be cleaned in the third direction; the oral cleaning influencing factor analysis platform includes a controller, the first pressure sensor and the second pressure sensor are respectively connected to the controller for communication, and the controller is configured as follows: determining whether the first pressure exceeds a first threshold, and determining whether the second pressure exceeds a second threshold; When the first pressure exceeds the first threshold, the second transfer module is controlled to stop feeding in the second direction; when the second pressure exceeds the second threshold, the outside-outward movement module is controlled to stop feeding in the third direction.

7. The method for analyzing factors affecting oral hygiene according to any one of claims 1 to 6, characterized in that: Step S10 includes: preparing the dental plaque simulation, and photographing the initial dental model before applying the dental plaque simulation to obtain a first image; Applying the dental plaque simulant on the initial dental model; placing the initial dental model coated with the dental plaque simulation in a constant temperature box to solidify the dental plaque simulation to obtain the dental model to be cleaned; and The dental mold to be cleaned is taken out, cooled to room temperature, and photographed to obtain a second image.

8. The method for analyzing factors affecting oral hygiene according to claim 7, characterized in that: Step S30 includes: Placing the to-be-cleaned dental mold after the teeth brushing action in the constant temperature box for drying to obtain the cleaned dental mold; Taking out the cleaned dental mold and cooling it to room temperature; and Taking a photo of the cleaned dental model to obtain a third image; and Image recognition processing is performed on the first image, the second image, and the third image to obtain the cleanliness data.

9. The method for analyzing factors affecting oral hygiene according to claim 8, characterized in that: Before placing the tooth mold to be cleaned after the teeth brushing action in the constant temperature box, the method further includes: The tooth mold to be cleaned is rinsed after the teeth brushing action.

10. The method for analyzing factors affecting oral hygiene according to claim 7, characterized in that: Before placing the initial dental model coated with the dental plaque simulator in a constant temperature box, the method further comprises: Preheat the incubator.

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