JP2022079152A - Data analysis program, recording medium, data analysis method, data analysis device, and dental treatment system - Google Patents

Abstract

To set a reference value of grip strength that allows sufficient discrimination accuracy to be acquired for achieving appropriate stress control.SOLUTION: A data analysis program 21 includes: a data acquisition processing unit 22 for acquiring a maximum gripping strength value voluntarily measured by a patient when he or she is not receiving a treatment for a CPU disposed in a PC 5 for data analysis for analyzing time-series data of a detected gripping strength value G(t) of the patient detected through a gripping strength detection unit 6 while the patient is receiving a dental treatment; and a parameter setting processing unit 23 for setting a first threshold TH1 as a reference value for interrupting a treatment in any treatment process on the basis of the maximum gripping strength value acquired by the data acquisition processing unit 22.SELECTED DRAWING: Figure 6

Description

The disclosed embodiments relate to a data analysis program, a recording medium, a data analysis method, a data analysis apparatus, and a dental treatment system for analyzing patient condition data detected during dental treatment.

For example, Patent Document 1 describes, as a technique for monitoring a patient's psychological stress during dental treatment in real time, a method of referring to the magnitude of the patient's grip force measured via a probe as an index of stress at that time. ing.

Japanese Patent No. 5109126

However, in the above-mentioned conventional technique, the grip strength value actually measured can be compared only by using the scale subjectively set by the system developer or the like as a reference value, and can be compared based on a clear technical basis. No useful reference value was specified. Therefore, in the above-mentioned monitoring of the patient's psychological stress during dental treatment and the data analysis of the ex post facto grip strength value, it was not possible to obtain sufficient discrimination accuracy for realizing appropriate stress control.

The present invention has been made in view of such problems, and is a data analysis program, recording medium, and data analysis capable of setting a reference value of grip force that can obtain sufficient discrimination accuracy to realize appropriate stress control. It is an object of the present invention to provide a method, a data analysis device, and a dental treatment system.

In order to solve the above problems, according to the data analysis program of the present invention, for a calculation unit provided in a device for analyzing time-series data of a patient's grip strength value detected via a predetermined device during dental treatment. , The acquisition process of acquiring the maximum grip strength value voluntarily measured by the patient during non-treatment, and the first threshold value setting process of setting the first threshold value based on the maximum grip strength value acquired in the acquisition process. Is characterized by executing.

Further, according to the recording medium of the present invention, the patient can use the arithmetic unit provided in the device for analyzing the time-series data of the grip force value of the patient detected through a predetermined device during dental treatment when the patient is not treated. Data for executing the acquisition process of acquiring the maximum grip force value arbitrarily measured and the first threshold value setting process of setting the first threshold value based on the maximum grip force value acquired in the acquisition process. It is characterized by being readable by a non-temporary computer that stores an analysis program.

Further, according to the data analysis method of the present invention, it is a data analysis method executed by a data analysis device that analyzes time-series data of the grip force value of the patient detected during dental treatment, and the patient can voluntarily perform it during non-treatment. It is characterized by acquiring the measured maximum grip force value and setting the first threshold value based on the maximum grip force value acquired in the acquisition process.

Further, according to the data analysis device of the present invention, it is a data analysis device that analyzes time-series data of the grip force value of a patient detected through a predetermined device during dental treatment, and the patient can voluntarily perform it during non-treatment. It is characterized by including an acquisition unit for acquiring the measured maximum grip force value and a first threshold value setting unit for setting a first threshold value based on the maximum grip force value acquired by the acquisition unit.

Further, according to the dental treatment system of the present invention, a detection unit that detects the grip force value of the patient and a monitoring device that outputs notification information regarding the stress state of the patient based on the grip force value detected by the detection unit. A dental treatment system including a notification unit for notifying the notification information output by the monitoring device in a predetermined manner, wherein the monitoring device acquires a maximum grip force value voluntarily measured by a patient during non-treatment. It is characterized by including an acquisition unit and a first threshold value setting unit that sets a first threshold value based on the maximum grip force value acquired by the acquisition unit.

According to the present invention, it is possible to set a reference value of grip strength that can obtain sufficient discrimination accuracy in order to realize appropriate stress control.

It is a schematic system block diagram of the dental treatment system which concerns on this embodiment. It is an external view which shows the structure of each grip strength detection part of a rubber ball type and a gripper type. It is an external view which shows the structure of the display part of each of a fixed type display and a finger-mounted display. It is a figure which represented an example of the time-series data of the detected grip strength value which was detected by the grip strength detection part during dental treatment and was recorded by the monitoring apparatus. It is a flowchart which shows the control procedure of the stress monitoring action which CPU of a monitoring apparatus performs. It is a figure which shows the schematic software block composition of the data analysis program executed by the PC for data analysis. It is a figure which represented the example of the time-series data in the case of short-time low stress treatment schematically. It is a figure which shows the time-dependent change of the opening fatigue degree. It is a figure which represented typically the time-series data in the case of long-term low stress treatment, and an example of setting of the treatment permissible time for it. It is the figure which represented the example of the time-series data when the local anesthesia addition was performed. It is a figure which represented the example of the time-series data when the treatment was interrupted schematically.

Hereinafter, one embodiment will be described with reference to the drawings.

<About the outline system configuration>
First, a schematic system configuration of the dental treatment system according to the present embodiment will be described with reference to FIG. 1. In FIG. 1, the dental treatment system 1 of the example of this embodiment has a treatment table 2, a display unit 3, a monitoring device 4, and a data analysis PC 5.

The treatment table 2 is a pedestal on which the patient undergoing dental treatment sits, and the grip strength detection unit 6 (detection unit) that the patient can grasp with the palm of the hand at the tip position of the arm 2a on which the elbow is placed while the patient is seated. (See Fig. 2 below) is installed.

The display unit 3 (corresponding to the notification unit) is a liquid crystal display in the illustrated example, and is fixedly arranged in the vicinity of the head unit 2b of the treatment table 2.

The monitoring device 4 (corresponding to the monitoring device) is a computer composed of a CPU, ROM, RAM, HDD, flash memory, etc., and acquires a detected grip strength value detected from the grip strength detection unit 6 of the treatment table 2. In addition to recording, it has a function of outputting notification information regarding the stress state of the patient to the display unit 3 based on the detected grip strength value. Further, the monitoring device 4 is provided with an operation unit 4a such as a touch panel or a keyboard (not shown), and receives various information input operations from a dentist (corresponding to a practitioner) who performs dental treatment. Further, the monitoring device 4 has a function of outputting monitoring data including the above-mentioned detected grip force value (see FIG. 6 described later) to the data analysis PC 5 described later, and the result of the data analysis PC 5 analyzing the monitoring data. It also has a function to input analysis data. It should be noted that such transmission / reception of various data to / from the data analysis PC 5 may be performed via, for example, a communication network such as a LAN (Local Area Network) or the Internet, or a removable medium such as a USB memory.

The data analysis PC 5 (corresponding to a device and a data analysis device) is a general-purpose personal computer composed of a CPU (corresponding to a calculation unit), a ROM, a RAM, an HDD, a flash memory, etc. in this example, and is the above-mentioned monitoring. A data analysis program (see FIG. 6 described later) that analyzes the monitoring data input from the device 4 is pre-installed. In the illustrated example, a desktop type general-purpose personal computer is used, but a so-called smartphone, tablet-type PC, or notebook-type general-purpose personal computer may also be used.

<Details of grip strength detector>
As the grip strength detecting unit 6 provided on the treatment table 2, for example, a rubber ball type as shown in FIGS. 1 and 2 (a) and a gripper type as shown in FIG. 2 (b) can be used. .. The rubber ball-shaped grip strength detection unit 6a is entirely composed of a hollow rubber ball that can be elastically deformed, and the grip strength (internal pressure value or kg unit) is obtained from the change in internal pressure due to the patient gripping the entire rubber ball. Grip strength conversion value, etc.) is detected. In the gripper type grip strength detection unit 6b, two pads 12 and 13 that are relatively swingable via the fulcrum 11 are urged by a urging member (not shown) between them, and the patient grips the whole. The grip strength (angle value, grip strength conversion value in kg, etc.) is detected from the change in the relative angle between the pads. In addition to these forms, it may be applied as a grip force detecting unit as long as it can sequentially detect the grip strength value held by the patient in real time. Further, the installation configuration of the grip strength detection unit 6 is not limited to the configuration of being fixed to the treatment table 2 as described above, and may be configured to be separated from the treatment table 2 so that the patient can freely move and grip (particularly, the figure). Not shown). In this case, the independent grip strength detecting unit 6 enables the detected grip strength value to be directly transmitted to the monitoring device 4 via wired communication using a cable or the like or wireless communication such as Wi-Fi (registered trademark). Further, the above-mentioned rubber ball type or gripper type grip strength detecting units 6a, 6 and the like b correspond to the device and the detecting unit according to each claim.

<Details of the display>
FIG. 3 (a) shows an enlarged example of the display screen of the display unit 3 composed of the fixed liquid crystal display 3a shown in FIG. On this display screen, an indicator 14 that displays the magnitude of the detected grip strength value and which stress stage will be described later, and various messages 15 are displayed. As described above, since the display unit 3 is arranged in the vicinity of the head portion 2b of the treatment table 2, the viewpoint can be moved in a short time even while the dentist is gazing at the patient's mouth and performing the treatment. The display contents of the display unit 3 can be immediately visually recognized. In addition, for example, as shown in FIG. 3B, by substituting or using the display unit 3 in the form of a small display 3b (corresponding to the wearing display device) to be attached to the finger of the dentist, the viewpoint can be moved even shorter. Visual recognition is possible.

<Characteristics of this embodiment>
In dental treatment, stress control for controlling stress caused by patient's pain and anxiety during treatment has been an important issue for many years. Therefore, in recent years, as a technique for monitoring the patient's stress during dental treatment in real time, instead of directly detecting the pain and fatigue felt by the patient, the magnitude of the patient's grip strength detected through a device such as a grip strength meter is used. A method to refer to as an index of stress at the time point has been proposed.

According to this, when the grip strength is detected to be larger than a certain level, it is possible to determine that the treatment is discontinued by assuming that the patient is under excessive stress. In addition, time-series data of changes in grip force during treatment are recorded, for example, setting an appropriate allowable treatment time so that the patient does not feel transient stress, or ex post facto appropriateness for the treatment content. A specific and detailed analysis method for the time-series data of the grip force is also required so that the evaluation can be performed.

However, until now, the grip strength value actually detected as described above has only been compared with the standard value subjectively set by the developer of the monitoring device, etc., and has a clear technical basis. No useful reference values were defined that could be compared on the basis of. Therefore, in the above-mentioned determination of treatment interruption and analysis of time-series data, sufficient discrimination accuracy for realizing appropriate stress control could not be obtained.

On the other hand, in the monitoring device 4 of the example of the present embodiment, the acquisition unit that acquires the maximum grip strength value voluntarily measured by the patient during non-treatment and the maximum grip strength value acquired by the acquisition unit are set as the first threshold value. A first threshold value setting unit is provided.

In general, no matter how large the maximum grip strength that the patient voluntarily measured during non-treatment without any stress, the involuntary grip strength when feeling excessive stress during treatment is the above voluntary maximum. The grip strength value can be exceeded. That is, when a grip strength value exceeding the maximum voluntary grip strength value is used as a threshold value, it can be considered that the stress is so great that the patient becomes involuntary. The first threshold value set by the voluntary maximum grip strength value in this way can be used as an effective reference value for determining whether or not a large stress is generated. Hereinafter, various usage forms of the first threshold value set in this way will be sequentially described.

<First form of use: Use for stress control during dental treatment>
FIG. 4 shows an example of time-series data of the grip strength value detected by the grip strength detection unit 6 during the dental treatment and recorded by the monitoring device 4. The grip strength detecting unit 6 always outputs the detected grip strength value G (t) at the elapsed time t from the start to the end of the treatment, and the monitoring device 4 detects the detected grip strength value G at a sufficiently short time interval (sampling frequency). By sequentially acquiring and recording (t), time-series data showing a time-varying waveform of the detected grip strength value G (t) as shown in the illustrated example is generated. The detected grip strength value G (t) detected in actual dental treatment may be detected as a change waveform that forms a peak waveform (triangular waveform having vertices) intermittently or continuously as shown in the figure. It is common.

Here, from the viewpoint of controlling the patient's stress during dental treatment, the most important thing for the dentist is not to maintain the state where the patient is overstressed, which causes great pain to the patient. It is necessary to immediately suspend the treatment (temporarily stop the treatment) when anxiety or fatigue occurs. At this time, since it is difficult to directly measure the psychological stress felt by the patient, instead, the magnitude of the detected grip strength value G (t) is monitored in real time as an index of the stress at that time.

However, on the other hand, depending on the actual treatment content in dental treatment, there is a process that should be continued without interruption as much as possible even if the patient is allowed to tolerate a certain degree of stress. In addition, if the treatment is interrupted frequently during the treatment, the time required for the entire dental treatment becomes longer, which is a factor that increases the stress of the patient. Further, the detected grip strength value G (t) does not always have a linear relationship with the magnitude of psychological stress.

Therefore, in the present embodiment, based on the comparison between the limit of stress tolerance of the patient and the necessity of continuing the treatment, the first threshold is used as a criterion for determining the detected grip strength value G (t) (stress) to the extent that the treatment needs to be interrupted. Two threshold values, a value TH1 and a second threshold value TH2, are set.

The first threshold value TH1 is a reference value at which the treatment should be interrupted during any treatment step when the detected grip strength value G (t) exceeds the first threshold value TH1. In the present embodiment, as a specific value of the first threshold value TH1, the voluntary maximum grip strength value Gm detected by having the patient grip the grip strength detection unit 6 most strongly only once before dental treatment (during non-treatment) is used. Set.

When the detected grip strength value G (t) exceeds the second threshold value TH2, the second threshold value TH2 can be continued during the treatment process that cannot normally be interrupted, but during the treatment process that can be interrupted. If this is the case, it is a reference value at which the treatment should be interrupted, and is set at a value lower than the first threshold value TH1. In the present embodiment, as a specific value of the second threshold value TH2, a value obtained by multiplying the first threshold value TH1 by a predetermined ratio Z% (for example, 50 <Z <100) appropriately set is used. Set.

In the present embodiment, as the range classification of the detected grip force value G (t), the range of the second threshold value TH2 or less is the green stage, and the range larger than the second threshold value TH2 and the first threshold value TH1 or less is yellow. The range larger than the stage and the first threshold value TH1 is called a red stage. That is, when the detected grip strength value G (t) and the corresponding stress of the patient are in the range of the green stage, it can be determined that the stress is sufficiently low and it is not necessary to consider discontinuing the dental treatment. In addition, when the detected grip strength value G (t) and the corresponding stress of the patient are in the range of the yellow stage, the stress is relatively high, and it is necessary to consider discontinuation depending on the treatment content of the dental treatment. It can be judged that there is. In addition, when the detected grip strength value G (t) and the corresponding stress of the patient reach the range of the red stage, the stress is excessive, and any treatment content is interrupted with priority given to the viewpoint of stress control. It can be determined that it should be done.

The indicator displayed on each display unit 3 shown in FIGS. 2 (a) and 2 (b) has colors (green, yellow, red; shaded areas in FIG. 4) corresponding to each of the above stages. A plurality of panels color-coded according to (corresponding to the type of) are arranged in order, and the monitoring device 4 emits light in order according to the magnitude of the detected grip strength value G (t). As a result, the dentist can determine which stress stage the magnitude of the detected grip strength value G (t) at that time is in (that is, the detected grip strength value G (t) and the first threshold value TH1 or the second threshold value. The magnitude relationship with TH2) can be easily visually recognized.

<Control flow of monitoring device>
Next, the control procedure of the stress monitoring process executed by the CPU of the monitoring device 4 in the dental treatment will be described with reference to the flowchart shown in FIG. This flow begins with the patient sitting on the treatment table 2.

First, in step S5, the CPU of the monitoring device 4 detects the maximum value of the detected grip strength value input from the grip strength detection unit 6 as the patient's voluntary maximum grip strength value Gm. Since the detection of the voluntary maximum grip strength value Gm only needs to be detected once for the patient, the step S5 may be omitted in the second and subsequent dental treatments of the same patient. The procedure in step S5 corresponds to the acquisition unit described in each claim.

Next, in step S10, the CPU of the monitoring device 4 sets the voluntary maximum grip strength value Gm detected in step S5 as the first threshold value TH1, and sets the first threshold value TH1 to a predetermined ratio Z%. The value obtained by multiplying by (= TH1 × Z / 100) is set as the second threshold value TH2. The procedure in step S10 corresponds to the first threshold value setting unit and the second threshold value setting unit described in each claim.

Next, the process proceeds to step S15, and the CPU of the monitoring device 4 acquires the treatment allowable time Tk of the analysis data received from the data analysis PC 5 in advance. The allowable treatment time Tk is the maximum allowable time for dental treatment set in advance by the data analysis PC 5 according to the individual patient and the treatment content of the dental treatment, and the details thereof will be described later.

Next, the process proceeds to step S20, and the CPU of the monitoring device 4 resets the value of the elapsed treatment time t to 0.

Next, the process proceeds to step S25, and the CPU of the monitoring device 4 waits in a loop until the treatment start operation is performed by the dentist via the operation unit 4a.

Next, in step S30, the CPU of the monitoring device 4 detects the detected grip strength value G (t) from the grip strength detecting unit 6 and records it as time-series data.

Next, in step S35, the CPU of the monitoring device 4 determines whether or not the detected grip strength value G (t) detected in step S30 is larger than the first threshold value TH1, in other words, the magnitude of the patient's stress is red. Determine if the stage has been reached. When the detected grip strength value G (t) is larger than the first threshold value TH1, the determination is satisfied (S35: YES), and the process proceeds to step S40.

In step S40, the CPU of the monitoring device 4 outputs red notification information to the display unit 3 to notify that the patient's stress has reached the red stage for a certain period of time. Then, the process proceeds to step S60 described later.

On the other hand, in the determination in step S35, if the detected grip strength value G (t) is equal to or less than the first threshold value TH1, the determination is not satisfied (S35: NO), and the process proceeds to step S45.

In step S45, the CPU of the monitoring device 4 determines whether or not the detected grip strength value G (t) detected in step S30 is larger than the second threshold value TH2, in other words, the magnitude of the patient's stress is in the yellow stage. Judge whether or not. When the detected grip strength value G (t) is larger than the second threshold value TH2, the determination is satisfied (S45: YES), and the process proceeds to step S50.

In step S50, the CPU of the monitoring device 4 outputs yellow notification information to the display unit 3 to notify that the patient's stress is in the yellow stage for a certain period of time. Then, the process proceeds to step S60 described later.

On the other hand, in the determination in step S45, if the detected grip strength value G (t) is equal to or less than the second threshold value TH2, the determination is not satisfied (S45: NO), and the process proceeds to step S55.

In step S55, the CPU of the monitoring device 4 outputs green notification information to the display unit 3 to notify that the patient's stress is in the green stage. Then, the process proceeds to step S60.

In step S60, the CPU of the monitoring device 4 has other notification information such as the treatment elapsed time t at that time and the remaining treatment time which is the difference time between the treatment allowable time Tk and the treatment elapsed time t (FIG. 3 (a) above). Refer to) is output to the display unit 3.

Next, the process proceeds to step S65, and the CPU of the monitoring device 4 determines whether or not the treatment end operation has been performed by the dentist via the operation unit 4a. If the treatment end operation is not performed, the determination is not satisfied (S65: NO), and the process proceeds to step S70.

In step S70, the CPU of the monitoring device 4 adds the elapsed treatment time t over time with reference to an internal timer (not shown) or the like. After that, the process returns to step S30 and the same procedure is repeated.

On the other hand, if the treatment end operation is performed in the determination in step S65, the determination is satisfied (S65: YES), and this flow is terminated.

The monitoring device 4 may sequentially count the number of times the patient's stress reaches the red stage during dental treatment and display it in real time. Specifically, a dedicated count variable prepared in advance is reset to 0 before the start of dental treatment, and each time it is determined in step S35 that the detected grip strength value G (t) is larger than the first threshold value TH1. Increment the count variable. Then, in step S60, the value of the count variable, that is, the number of times the red stage has been reached from the start of dental treatment to that point is displayed on the display unit 3. As a result, the practitioner can refer to the number of times the red stage has been reached during the actual dental treatment, and can estimate the degree of fatigue of the patient at that time and the degree of tolerance thereafter in real time. Similarly, the number of times the yellow stage has been reached may be counted and displayed.

<Second usage pattern: Use of grip strength time series data for data analysis>
FIG. 6 shows a schematic software block configuration of a data analysis program executed by the data analysis PC 5. This data analysis program 21 is an application program installed on a data analysis PC 5 which is a general-purpose personal computer, for example, via removable media (corresponding to a recording medium) such as various optical disks and USB memory, or download via a communication network. Is. The data analysis program 21 mainly has software blocks of a data acquisition processing unit 22, a parameter setting processing unit 23, a treatment allowable time setting program 24, and a stress control evaluation program 25.

The data acquisition processing unit 22 functions to acquire the monitoring data output by the monitoring device 4 via a communication network or various removable media. The contents of the monitoring data in this embodiment include grip strength value time series data as shown in FIG. 4, voluntary maximum grip strength value Gm, and various personal data (age, gender, approximate height and weight, past) about the patient. The number of treatments, type, etc.) are included. The data acquisition processing unit 22 corresponds to the acquisition processing and acquisition unit described in each claim.

The parameter setting processing unit 23 functions to set various parameters such as the first threshold value TH1 and the second threshold value TH2 described above based on the monitoring data acquired by the data acquisition processing unit 22. The parameter setting processing unit 23 corresponds to the first threshold value setting acquisition process, the second threshold value setting acquisition process, and the first threshold value setting unit described in each claim.

The treatment allowable time setting program 24 sets the treatment allowable time Tk, which is the maximum allowable time of dental treatment corresponding to the individual patient and the treatment content of the dental treatment, by data analysis based on the acquired monitoring data and various set parameters. It is a program to do. The treatment allowable time setting program 24 also has a function of outputting the set treatment allowable time Tk as analysis data to the monitoring device 4. The treatment allowable time setting program 24 corresponds to the treatment allowable time setting process described in each claim.

The stress control evaluation program 25 is ex post facto whether it was properly carried out from the viewpoint of stress control for the treatment in dental treatment when the monitoring data was generated by data analysis based on the acquired monitoring data and various set parameters. It is a program to evaluate. The stress control evaluation program 25 corresponds to the stress control evaluation process described in each claim.

As described above, the data analysis program 21 mainly analyzes the monitoring data data so as to exert the two processing functions of setting the treatment allowable time Tk and stress control evaluation. In the following, the data analysis methods performed by each of these two processing functions will be described in detail in order.

<About the data analysis method in the treatment allowable time setting program>
FIG. 7 is an example of grip force value time series data included in the monitoring data. In the illustrated example, dental treatment is performed in a relatively short time, and occurs in the patient over the entire treatment time from the start to the end. Time-series data is shown when the stress is relatively low (all are within the green stage). In the illustration of the time series data below, the shaded display corresponding to each stress stage shown in FIG. 4 is omitted in order to avoid the complexity of the illustration.

As described above, the detected grip strength value G (t) in the grip strength value time series data forms a change waveform that forms a peak waveform intermittently or continuously according to the presence or absence of the treatment, and is, for example, a known waveform analysis method. By using (details omitted), it is possible to detect the occurrence time, the number of occurrences, and the peak value of each peak point included in the change waveform. Then, in the present embodiment, the average stress degree Vs in the time series data is obtained by dividing the total of the peak values of each peak point by the number of peaks (the number of peak points generated; 10 in the illustrated example) (that is, the average value). Is calculated. This average stress degree Vs can be regarded as the expected value of each stress peak point that occurs in the patient in the low stress dental treatment.

Here, other than the psychological anxiety factor, the main factors that cause psychological stress in patients undergoing dental treatment are
・ Psychological stepping on normal treatment ・ Physiological response to pain caused by treatment mistakes can be considered. For the former factor, only the stress peak point with the above average stress degree Vs as the expected value is generated, but for the latter factor, it is sudden as shown in the treatment B in FIG. 10 described later. It causes a large stress peak point that can reach the red stage.

On the other hand, according to the present study by the inventor of the present application, a patient has a potential fatigue level due to continuous dental treatment for a long time, and this potential fatigue level determines the peak value of each stress peak point. We have newly discovered that it is a factor that amplifies. As an example of this latent fatigue model, as shown in FIG. 8, for example, after a certain period of time has passed from the start of treatment, the patient has an opening fatigue due to an opening for treatment, and after that, the opening fatigue is linearly elapsed. Will gradually increase. Therefore, when the dental treatment is continued for a relatively long time, the average stress degree Vs is amplified according to the gradual increase of the opening fatigue degree as shown in the time series data of FIG. 9, and the amplified average is amplified. The peak value of each stress peak point also increases with the expected value corresponding to the stress degree Vs.

While the degree of opening fatigue gradually increases in this way, the possibility and frequency of reaching the yellow stage increases even with the low stress (see the broken line waveform in the figure) caused by the psychological struggle for the above-mentioned normal treatment. Will end up. Therefore, in the treatment allowable time setting program 24 of the present embodiment, the time until the average stress degree Vs amplified by the opening fatigue degree reaches the second threshold value TH2 is set as the above-mentioned treatment allowable time Tk.

Specifically, the difference value between the initial value Vs0 of the average stress degree Vs and the second threshold value TH2 is ΔG, and the time change rate of the opening fatigue degree after tp when the opening fatigue degree occurs is ΔH. Let K be the amplification factor of stress with respect to the degree of opening fatigue. In this case, the gradual increase time Tp required for the average stress degree Vs gradually increasing due to the amplification of the opening fatigue degree from the tp at the time of occurrence of the opening fatigue degree to reach the second threshold value TH2 is
Tp = ΔG / (K × ΔH) ・ ・ ・ (Equation 1)
It is calculated by. As a result, the allowable treatment time Tk (= tp + Tp) becomes
Tk = tp + ΔG / (K × ΔH) ・ ・ ・ (Equation 2)
It may be set by the value calculated in.

Ideally, each parameter value of the time change rate ΔH, the amplification factor K, and the opening fatigue degree tp should be appropriately acquired as eigenvalues of the individual patient. However, since these parameter values are strongly correlated with personal data such as the patient's age, gender, height, weight, etc., treatment site, treatment type, etc., the above parameter setting processing unit 23 is included in the monitoring data. Each of the above parameter values may be appropriately set based on the patient's personal data (and data on the treatment site and treatment type). In this case, the parameter setting processing unit 23 may process the setting by using an artificially designed statistical mathematical model, or a large amount of data set by machine learning such as deep learning using a neural network. It may be processed to set each of the above parameter values by the trained model trained in advance using (not shown in particular).

Further, as another example of the above-mentioned latent fatigue model, for example, when stress that reaches the yellow stage or higher occurs during dental treatment, pain-resistant fatigue is generated according to the magnitude of the stress. It is possible that it will accumulate each time. Then, the total latent fatigue degree, which is the sum of the accumulated pain-resistant fatigue degree and the above-mentioned opening fatigue degree, amplifies the average stress degree Vs. In this case, each time the monitoring device 4 during dental treatment detects the occurrence and accumulation of the pain-resistant fatigue level, the effect may be reflected and the treatment allowable time Tk may be shortened (not shown in particular). ).

<Data analysis method in stress control evaluation program>
The stress control evaluation program 25 is a program for ex post facto evaluation of how appropriately each treatment step is performed by the dentist who is the practitioner in the actual dental treatment from the viewpoint of stress control.

As described above, during actual dental treatment, the average stress level Vs is amplified by the latent fatigue level that gradually increases over time or accumulates and increases each time pain occurs, so that even when normal treatment is performed. The stress that occurs on the patient tends to increase gradually.

On the other hand, specific measures that the practitioner can take to alleviate the patient's stress and increased potential fatigue include:
・ Additional implementation of local anesthesia ・ Temporary interruption of dental treatment (that is, break)
There are measures such as. For example, in treatment B shown in the time-series data of FIG. 10, even if excessive stress that suddenly reaches the red stage occurs due to the occurrence of pain due to a treatment error or the like, local anesthesia is immediately added. By carrying out this, the peak value of each stress peak that occurs thereafter can be greatly reduced. Further, as shown in the time-series data of FIG. 11, even if the treatment treatment is temporarily interrupted and the patient is rested immediately after the same excessive stress occurs in the treatment B, it occurs after the treatment is resumed. The peak value of each stress peak can be reduced, though not as much as the above-mentioned additional anesthesia. The change waveform of the alternate long and short dash line in each of FIGS. 10 and 11 is the same stress waveform assumed when the palliative treatment (local anesthesia and treatment interruption in this example) is not performed.

However, on the other hand, if stress-relieving treatments such as the above-mentioned local anesthesia and treatment interruption are performed many times during one dental treatment, it is a factor that increases the time required for the entire dental treatment and the burden on the patient. turn into. Further, as described above, depending on the actual treatment content in the dental treatment, there is a process in which the treatment should be continued even if the patient is allowed to tolerate a certain degree of stress.

Therefore, in the stress control evaluation program 25 of the example of the present embodiment, the treatment is evaluated from the viewpoint of stress control based on the recorded contents of the stress relief treatment actually executed while considering each of the above circumstances. A score system is used as the evaluation index in this example, and the final evaluation score is calculated by a deduction method for a predetermined initial reference point (for example, 1000 points). Specific deduction factors at this time include the number of times the yellow and red stress stages are reached (the number of peaks) and the number of times the stress relief treatment is executed during dental treatment.

Here, a specific evaluation point calculation method in the example of the present embodiment will be described. First of all, if stress peaks that reach each of the yellow and red stress stages are generated, the skill of the treatment operation at that time is considered to be low from the viewpoint of stress control, and those are reached. Points are deducted by weighting different deduction factors for yellow and red for each peak. Further, as described above, considering that yellow or red may have to be reached depending on the treatment content, the weighting of the deduction coefficient according to the corresponding treatment content is also reflected for each stress peak. Frequent occurrence of yellow peaks and red peaks at short time intervals without performing any stress relief measures should be avoided from the viewpoint of stress control, and points should be deducted by weighting with a larger deduction coefficient. That is, the number of occurrences of red peaks or yellow peaks within the most recent predetermined time is defined as the number of occurrences (corresponding to the frequency of occurrence), and for each yellow peak, the yellow coefficient x treatment content coefficient + frequent occurrence coefficient x number of occurrences ... (Equation) 3)
Red coefficient x treatment content coefficient + frequent occurrence coefficient x frequent occurrence frequency for each red peak ... (Equation 4)
Deduct points with. It should be noted that the number of times each stress stage of yellow or red is reached may be simply counted and reflected in the evaluation score. For example, the number of times each stress stage is reached may be weighted with a different deduction coefficient to deduct points.

In addition, the main timing of performing stress relief treatment by local anesthesia may be performed at the start of dental treatment or immediately after the occurrence of excessive stress that suddenly reaches the red stage. If it is performed once at the start, the subsequent treatment can surely suppress the occurrence of excessive stress (that is, the above-mentioned excessive peak number deduction can be avoided), but the effect of anesthesia decreases over time, so in some cases it is local. Additional anesthesia is required. In addition, if the policy is to execute immediately after the occurrence of excessive stress, there is a possibility that the execution of local anesthesia can be avoided or the number of executions can be reduced without causing excessive stress depending on the operation of the treatment. Since the psychological and physical burden on the patient can be suppressed if the number of times of execution of local anesthesia is as small as possible, points are deducted by the number of times of execution by weighting with the deduction coefficient of local anesthesia from the viewpoint of stress control. That is,
Local anesthesia coefficient x number of anesthesia executions ... (Equation 5)
Deduct points with.

In addition, the stress relief treatment by discontinuing treatment can lower the deduction coefficient because the psychological and physical burden on the patient is relatively low, but if the discontinuation time is long, the entire treatment time will be prolonged, and as a result, the patient's treatment time will be prolonged. It leads to a burden. Therefore, from the viewpoint of stress control, points are deducted by the total time (execution time) of each discontinuation treatment by weighting with the deduction coefficient of discontinuation. That is,
Interruption coefficient x total interruption time ... (Equation 6)
Deduct points with.

As described above, each of the above (Equation 3) to (Equation 6) deduction points is calculated by analyzing the grip strength value time series data, and the total deduction points are subtracted from the initial reference point (for example, 1000 points) to total the points. Evaluation points are calculated and displayed. In the calculation of each deduction point described above, weighting may be performed by the treatment site coefficient or the treatment type coefficient in each calculation formula so that the influence of the treatment site and the treatment type on which the dental treatment is performed can be reflected.

Then, in the stress control evaluation of the present embodiment, as described above, in each calculation process, the calculation that reflects the treatment content and the stress relief treatment content of each step performed during the dental treatment is performed. Therefore, it is necessary for the monitoring device 4 to record the contents of the treatment performed for each step during the dental treatment and the contents of the stress relieving treatment as time-division data, and output the monitoring data including the contents. The time division data can be recorded by the practitioner or his / her assistant during the dental treatment by sequentially inputting the treatment contents to the monitoring device 4 via the operation unit 4a (not shown in particular).

On the other hand, a factor for adding points to the evaluation points may be set. For example, during general dental treatment, each stress peak value tends to increase as the degree of latent fatigue over time increases. On the other hand, if it is found that the increase in stress peak value can be suppressed only by normal treatment operation without performing the above-mentioned specific stress relief treatment, the treatment is performed from the viewpoint of stress control. The operation itself may be added to the evaluation points. Specifically, assuming that no stress relief measures have been performed, refer to the slope of the straight line connecting adjacent peak points and the slope of the moving average waveform generated separately for the peak waveform. The number of points added may be calculated according to the degree to which the slope can be kept smaller than the general slope (not shown in particular).

<Effect of this embodiment>
As described above, the dental treatment system 1 of the present embodiment provides information regarding the patient's stress state based on the grip strength detection unit 6 that detects the patient's grip strength value and the grip strength value detected by the grip strength detection unit 6. A dental treatment system 1 having a monitoring device 4 for output and a display unit 3 for displaying notification information output by the monitoring device 4 in a predetermined mode such as an indicator display or a message display, wherein the monitoring device 4 is not. An acquisition unit (procedure execution unit in step S5) that acquires the maximum grip strength value voluntarily measured by the patient during treatment, and a first threshold value setting unit (step) that sets the acquired maximum grip strength value as the first threshold value TH1. The procedure execution unit of S10) and.

In general, no matter how large the maximum grip strength that the patient voluntarily measured during non-treatment without any stress, the involuntary grip strength when feeling excessive stress during treatment is the above voluntary maximum. The grip strength value can be exceeded. That is, when a grip strength value exceeding the maximum voluntary grip strength value is used as a threshold value, it can be considered that the stress is so great that the patient becomes involuntary. The first threshold value TH1 set by the voluntary maximum grip strength value as described above can be used as an effective reference value for determining the presence or absence of the occurrence of a large stress. As a result, it is possible to set a reference value at which sufficient discrimination accuracy can be obtained in order to realize appropriate stress control.

When the grip strength detection unit 6 is configured to be separate and independent from the treatment table 2 as described above, when the voluntary maximum grip strength value Gm before the dental treatment is detected (when the above step S5 is executed) and during the dental treatment. When the detected grip strength value G (t) is detected (when the above step S30 is executed), the detection conditions such as the patient's posture differ greatly, and the detected voluntary maximum grip strength value Gm and the detected grip strength value G (t) are obtained, respectively. ) May not be able to make an accurate comparison. On the other hand, in order to compensate for the dangerous area setting such as the red stage, a low value obtained by subtracting the set margin such as -4.6% or -10% from the voluntary maximum grip strength value Gm is used. The first threshold value TH1 may be set. Further, the setting of the above setting margin value may be appropriately changed according to the characteristics and wishes of the individual patient.

Further, in the present embodiment, in particular, the first threshold value TH1 is a reference value at which the treatment should be interrupted during any treatment step when the grip strength value exceeds the first threshold value TH1. Use as. As a result, the patient has an involuntary state that exceeds the maximum voluntary grip strength value, so it is clear in terms of stress control that it should be interrupted even during a treatment process that cannot normally be interrupted. Judgment becomes possible.

Further, in the present embodiment, in particular, the second threshold value setting unit (step S10) for setting the second threshold value TH2 obtained by multiplying the first threshold value TH1 by a predetermined ratio Z% (Z <100). It has a procedure execution unit). Thereby, the second threshold value TH2 can be set as a reference value relatively lower than the first threshold value TH1 that can determine the involuntary state of the patient at a predetermined ratio Z. Then, if the predetermined ratio Z% is an appropriate value, the second threshold value TH2 is used as a reference value for determining that moderately high stress is occurring even if the patient does not reach an involuntary state. can.

Further, in the present embodiment, in particular, the second threshold value TH2 can be continued as long as the treatment process cannot be interrupted when the grip strength value exceeds the second threshold value TH2, but the treatment process can be interrupted. If it is medium, use it as a reference value that should be interrupted. This makes it clear on stress control that the procedure should be interrupted during the interruptable treatment process, even if the patient does not have an involuntary state in which any treatment process should be interrupted. It is possible to make a good judgment.

Further, in the present embodiment, in particular, the notification information includes information regarding the magnitude relationship between the detected grip strength value G (t) detected by the grip strength detecting unit 6 and the first threshold value TH1 or the second threshold value TH2. I'm out. As a result, the display unit 3 into which the notification information is input can display which stress stage the magnitude of the detected grip strength value G (t) at that time is in, and the dentist who is the practitioner can easily visually recognize it. can.

Further, in the present embodiment, in particular, the display unit 3 may be a mounting display device (small display 3b) that is mounted on the practitioner's hand and displays notification information. As a result, even while the dentist is gazing at the patient's mouth and performing the treatment, the display content of the display unit 3 can be immediately visually recognized with a short viewpoint movement.

Further, in the present embodiment, in particular, the data analysis program 21 executed by the data analysis PC 5 sets the treatment allowable time Tk, which is the maximum allowable time of dental treatment corresponding to the individual patient and the treatment content of the dental treatment. The setting program 24 is executed. As a result, it is possible to set a desirable treatment allowable time Tk from the viewpoint of stress control that it is possible to avoid the occurrence of high stress on the patient if it is a normal treatment.

Further, in the present embodiment, in particular, the treatment permissible time setting program 24 is a treatment permissible time from the start of dental treatment until the integrated value of the latent fatigue degree and the average stress degree Vs reaches the second threshold value TH2. Set the time Tk. As a result, it is possible to set the allowable treatment time Tk for terminating the dental treatment before it is amplified by the degree of latent fatigue so that the yellow stage is frequently reached even if the stress is low for the usual treatment.

Further, in the present embodiment, in particular, the average stress degree Vs is calculated by the average value of the peak values of the detected grip strength values G (t) in the time series data. Thereby, the average stress degree Vs can be used as an expected value of each stress peak point generated in the patient in the low stress dental treatment.

Further, in the present embodiment, the latent fatigue degree includes the opening fatigue degree. As a result, the degree of opening fatigue that occurs linearly over time after a certain period of time has elapsed from the start of treatment can be reflected in the degree of latent fatigue by the opening for the treatment of the patient.

Further, in the present embodiment, in particular, the stress control evaluation program 25 is executed to evaluate after the fact whether or not the treatment in the dental treatment when the time series data is generated is properly performed from the viewpoint of stress control. This makes it possible to evaluate ex post facto how appropriately each treatment step was performed by the dentist who is the practitioner in the actual dental treatment from the viewpoint of stress control.

Further, in the present embodiment, in particular, the stress control evaluation program 25 evaluates based on the number of peaks at which the peak value of the detected grip strength value G (t) in the time series data exceeds the second threshold value TH2. As a result, it is possible to evaluate the treatment operation skill itself, which has generated a stress peak enough to reach each stress stage of yellow and red, from the viewpoint of stress control.

Further, in the present embodiment, in particular, the stress control evaluation program 25 evaluates based on the treatment content of the treatment. As a result, evaluation can be performed from the viewpoint of stress control, considering that yellow or red may have to be reached depending on the treatment content.

Further, in the present embodiment, in particular, the stress control evaluation program 25 evaluates based on the frequency of occurrence in which the peak value of the detected grip strength value G (t) in the time series data exceeds the second threshold value TH2. This makes it possible to make an evaluation based on the viewpoint of stress control, which states that frequent occurrence of yellow peaks and red peaks at short time intervals without performing any stress relief measures should be avoided from the viewpoint of stress control.

Further, in the present embodiment, in particular, the stress control evaluation program 25 evaluates based on the number of executions or execution time of the stress relief treatment (local anesthesia, treatment interruption). As a result, it is possible to evaluate from the viewpoint of stress control, which is desirable because the number of times of local anesthesia and the time of treatment interruption are as small as possible because the psychological and physical burden on the patient can be suppressed.

The evaluation index for stress control evaluation is not limited to the above-mentioned point addition / deduction method, and may be performed by another method.

In the above description, if there is a description of a value that serves as a predetermined criterion or a value that serves as a delimiter, such as a threshold value or a reference value, they are "same", "equal", "different", etc. Is the exact meaning.

In addition to the above-mentioned above, the methods according to the above-described embodiment and each modification may be appropriately combined and used.

In addition, although not illustrated one by one, the present invention is carried out with various modifications within a range not deviating from the gist thereof.

1 Dental treatment system 2 Treatment table 3 Display unit (equivalent to notification unit)
4 Monitoring device (equivalent to monitoring device)
4a Operation unit 5 Data analysis PC (corresponds to device and data analysis device)
6 Grip strength detection unit (corresponding to the detection unit)
6a Rubber ball type grip strength detection unit 6b Gripper type grip strength detection unit 21 Data analysis program 22 Data acquisition processing unit (corresponding to acquisition processing and acquisition unit)
23 Parameter setting processing unit (corresponds to the first threshold value setting acquisition process, the second threshold value setting acquisition process, and the first threshold value setting unit)
24 Allowable treatment time setting program (corresponding to the allowable treatment time setting process)
25 Stress control evaluation program (equivalent to stress control evaluation processing)

Claims (22)

For the arithmetic unit provided in the device that analyzes the time-series data of the patient's grip strength value detected via a predetermined device during dental treatment.
The acquisition process to acquire the maximum grip strength value voluntarily measured by the patient during non-treatment,
The first threshold value setting process for setting the first threshold value based on the maximum grip strength value acquired in the acquisition process, and the first threshold value setting process.
A data analysis program for executing. The data analysis program according to claim 1, wherein the first threshold value setting process sets the maximum grip strength value as the first threshold value. The data analysis program according to claim 1, wherein the first threshold value setting process sets the first threshold value by subtracting a predetermined margin from the maximum grip strength value. The first threshold value is used as a reference value at which the treatment should be interrupted during any treatment step when the grip strength value exceeds the first threshold value. The data analysis program according to any one of 3. The data analysis program according to claim 4, wherein a second threshold value setting process for setting a second threshold value obtained by multiplying the first threshold value by a predetermined ratio is executed. When the grip strength value exceeds the second threshold value, the second threshold value can be continued if the treatment process cannot be interrupted, but the treatment should be interrupted if the treatment process can be interrupted. The data analysis program according to claim 5, which is used as a reference value. The data analysis program according to claim 6, wherein the treatment allowable time setting process for setting the treatment allowable time, which is the maximum allowable time for dental treatment corresponding to the individual patient or the treatment content of the dental treatment, is executed. The treatment allowable time setting process sets the treatment allowable time by the time from the start of dental treatment until the integrated value of the latent fatigue degree and the average stress degree reaches the second threshold value. The described data analysis program. The data analysis program according to claim 8, wherein the average stress degree is calculated by the average value of the peak values of the grip strength values in the time series data. The data analysis program according to claim 8 or 9, wherein the latent fatigue degree includes an opening fatigue degree. One of claims 6 to 10, wherein a stress control evaluation process for ex post facto-evaluating whether or not the treatment in the dental treatment when the time-series data is generated is properly performed from the viewpoint of stress control is executed. The data analysis program described in. The data analysis program according to claim 11, wherein the stress control evaluation process evaluates based on the number of peaks at which the peak value of the grip strength value in the time-series data exceeds the second threshold value. The data analysis program according to claim 11 or 12, wherein the stress control evaluation process evaluates based on the treatment content of the treatment. The data analysis according to any one of claims 11 to 13, wherein the stress control evaluation process evaluates based on the frequency of occurrence of the peak value of the grip strength value in the time series data exceeding the second threshold value. program. The data analysis program according to any one of claims 11 to 14, wherein the stress control evaluation is evaluated based on the number of executions or execution time of the stress relief treatment. For the arithmetic unit provided in the device that analyzes the time-series data of the patient's grip strength value detected via a predetermined device during dental treatment.
The acquisition process to acquire the maximum grip strength value voluntarily measured by the patient during non-treatment,
The first threshold value setting process for setting the first threshold value based on the maximum grip strength value acquired in the acquisition process, and the first threshold value setting process.
A non-temporary computer-readable recording medium that stores a data analysis program for executing. It is a data analysis method executed by a data analysis device that analyzes time-series data of the grip force value of a patient detected during dental treatment.
Obtaining the maximum grip strength value voluntarily measured by the patient during non-treatment,
Setting the first threshold value based on the acquired maximum grip strength value,
How to analyze the data. A data analysis device that analyzes time-series data of patient's grip strength values detected via a predetermined device during dental treatment.
The acquisition unit that acquires the maximum grip strength value voluntarily measured by the patient during non-treatment,
A first threshold value setting unit that sets a first threshold value based on the maximum grip strength value acquired by the acquisition unit, and a first threshold value setting unit.
A data analysis device. A detector that detects the patient's grip strength and
A monitoring device that outputs notification information regarding the stress state of the patient based on the grip strength value detected by the detection unit, and
A notification unit that notifies the notification information output by the monitoring device in a predetermined manner, and a notification unit.
It is a dental treatment system that has
The monitoring device is
The acquisition unit that acquires the maximum grip strength value voluntarily measured by the patient during non-treatment,
A first threshold value setting unit that sets a first threshold value based on the maximum grip strength value acquired by the acquisition unit, and a first threshold value setting unit.
A dental treatment system. 19. The dental treatment system according to claim 19, further comprising a second threshold value setting unit that sets a second threshold value obtained by multiplying the first threshold value by a predetermined ratio. The dental treatment system according to claim 20, wherein the broadcast information includes information regarding a magnitude relationship between the grip strength value detected by the detection unit and the first threshold value or the second threshold value. The dental treatment system according to any one of claims 19 to 21, wherein the notification unit is a wearing display device that is attached to the practitioner's hand and displays the notification information.

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