Integrated measuring system for evaluating curative effect of dentin hypersensitivity

Abstract

The invention discloses an integrated measuring system for evaluating the curative effect of dentin hypersensitivity. The integrated measuring system comprises a first applying module, a second applying module and a third applying module, the application force of the tactile stimulus is incremented at a preset gradient, and recording a tactile threshold of the patient representing an uncomfortable time; the second applying module applies cold air stimulation to the teeth of the patient; the temperature and the pressure of the cold air stimulation are controlled within a preset range, and the reaction score of the patient according to the Schiff cold air sensitivity scale is recorded; the association module associates the touch threshold with the reaction score to obtain comprehensive evaluation data; the acquisition module takes an initial touch threshold value and an initial reaction score obtained by measuring teeth of a patient for the first time or before treatment as baseline data; and the evaluation module obtains an evaluation result of the curative effect of the dentin hypersensitivity according to the comprehensive evaluation data and the baseline data. By simultaneously applying tactile stimulation and cold air stimulation, the one-sidedness of single stimulation evaluation is avoided, and the accuracy of evaluation of the curative effect of dentin hypersensitivity is improved.

Description

Technical Field

[0001] This invention relates to the field of measurement technology, and in particular to an integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity. Background Technology

[0002] Dentin hypersensitivity is a common dental condition characterized by transient, sharp pain in the teeth when stimulated by mechanical or thermal stimuli. Treatment efficacy assessment relies on objective measurement and quantitative analysis of changes in sensitivity. Current DHS (Digital Sensitivity and Hypersensitivity) efficacy assessment methods used in clinical practice and research have the following key limitations, making them unsuitable for precise diagnosis and treatment: they use a single stimulus type for measurement, failing to comprehensively reflect sensitivity characteristics and accurately assess the effectiveness of dentin hypersensitivity treatment. Summary of the Invention

[0003] This invention aims to at least partially solve one of the technical problems in the aforementioned technologies. Therefore, the objective of this invention is to propose an integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity. By simultaneously applying tactile stimulation and cold air stimulation, it covers both the mechanical and temperature sensitivity dimensions of the patient, capturing the differences in the patient's sensitivity response to different stimuli. This avoids the one-sidedness of single-stimuli assessment, constructs a multi-dimensional sensitivity evaluation system, and improves the accuracy of evaluating the treatment efficacy of dentin hypersensitivity.

[0004] To achieve the above objectives, embodiments of the present invention propose an integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity, comprising: The first application module is used to apply tactile stimulation to the patient's teeth; wherein the application force of the tactile stimulation increases in a preset gradient, and the tactile threshold when the patient indicates discomfort is recorded; The second application module is used to apply cold air stimulation to the patient's teeth; wherein the temperature and pressure of the cold air stimulation are controlled within a preset range, and the patient's response score is recorded according to the Schiff Cold Air Sensitivity Scale. The correlation module is used to correlate tactile thresholds and response scores to obtain comprehensive evaluation data; The acquisition module is used to use the initial tactile threshold and initial response score obtained from the patient's first tooth measurement or pre-treatment measurement as baseline data; The assessment module is used to obtain the evaluation results of the treatment efficacy for dentin hypersensitivity based on comprehensive assessment data and baseline data.

[0005] According to some embodiments of the present invention, the first application module includes a tactile probe, and the force applied to the tactile probe increases linearly according to a preset force value sequence, the force value sequence starting from 98 millinewtons and increasing stepwise in increments of 98 millinewtons until reaching an upper limit threshold of 490 millinewtons.

[0006] According to some embodiments of the present invention, the tactile probe is an electronic force sensing probe.

[0007] According to some embodiments of the present invention, the second application module includes a control module for controlling the temperature of the cold air stimulus within the range of 16℃±2℃, the pressure within the range of 414 kPa±34 kPa, and continuously spraying the cold air from a distance of 1 cm from the patient's tooth surface for 1 second.

[0008] According to some embodiments of the present invention, the association module is used to bind sequentially collected tactile thresholds and reaction scores into the same data object to obtain comprehensive evaluation data.

[0009] According to some embodiments of the present invention, the evaluation module includes: The first calculation module is used to calculate the percentage change of the tactile threshold in the comprehensive evaluation data relative to the initial tactile threshold in the baseline data; The second calculation module is used to calculate the change in the level of the response score in the comprehensive assessment data relative to the initial response score in the baseline data; The third calculation module is used to perform weighted calculations based on the percentage change value and the grade change value according to preset weighting coefficients to generate a comprehensive sensitivity index, which serves as an evaluation result of the treatment efficacy of dentin hypersensitivity.

[0010] According to some embodiments of the present invention, it further includes: a generation module for generating a efficacy trend graph and an assessment report based on the assessment results.

[0011] According to some embodiments of the present invention, the generation module includes: The first generation submodule is used to draw at least one efficacy change curve with time as the horizontal axis and the percentage change value of tactile threshold, the level change value of response score and / or comprehensive sensitivity index as the vertical axis, and generate an efficacy trend chart. The second generation submodule is used to generate an assessment report based on the patient's basic information and measurement time points, the raw data of each measurement, the comprehensive sensitivity index, the efficacy trend graph, the automatic grading evaluation of efficacy based on preset rules, and the treatment suggestions given based on the efficacy trend graph and grading evaluation.

[0012] According to some embodiments of the present invention, the criteria for determining the Schiff cold air sensitivity scale are as follows: 0 points: The patient does not respond to air stimuli; 1 point: The patient responds to air stimulation but does not request that the stimulation be stopped; 2 points: The patient responds to air stimuli and requests to stop or avoid the stimulation; 3 points: The patient responds to air stimulation, perceives the stimulation as painful, and requests that the stimulation be stopped.

[0013] According to some embodiments of the present invention, it further includes: a positioning module, used for: Before the first application module applies tactile stimulation to the patient's teeth, a light scanning probe is inserted into the patient's oral cavity through a flexible gooseneck tube to scan the patient's teeth and surrounding tissues and collect point cloud data. Based on the point cloud data, a three-dimensional model of the tooth is generated using the Poisson surface reconstruction algorithm, and sensitive areas and their geometric parameters are marked. The three-dimensional model of the tooth is then imported into a unified coordinate system to generate a coordinate mapping relationship between the tooth and the reference point. A medical adhesive tag is affixed to a fixed position inside the patient's mouth. The tag contains built-in infrared reflective dots, serving as a positioning reference. An infrared tracking camera captures these reflective dots to obtain the tag's coordinates in a unified coordinate system. A miniature camera inside the mouth simultaneously acquires images of the patient's teeth. Sensitive areas are located using image recognition algorithms and the tag's coordinates in the unified coordinate system. These coordinates are compared with the coordinates of the sensitive areas in a 3D tooth model to correct positioning errors. The relative positional deviation between the first application module and the sensitive areas is calculated; this deviation data includes distance deviation, angle deviation, and planar offset. Based on the relative position deviation data, a PID control algorithm is used to generate motion commands for the multi-axis robotic arm to adjust the spatial attitude of the first application module. The multi-axis robotic arm executes motion commands to adjust the spatial orientation of the first application module, so that the first application module applies tactile stimulation to the sensitive area of ​​the patient's teeth.

[0014] This invention proposes an integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity. Through the hardware integration of a first application module and a second application module, it simultaneously acquires objective mechanical threshold and subjective temperature perception data. This allows for precise capture of efficacy changes in complex cases such as tactile sensitivity with temperature tolerance or temperature sensitivity with tactile tolerance, overcoming the limitations of single-assessment approaches. Standardized parameters within the first and second application modules eliminate the problem of poor data repeatability. Data fusion from related modules constructs a multi-dimensional evaluation system. By comparing the comprehensive evaluation data with baseline data, the accuracy of dentin hypersensitivity treatment efficacy assessment is improved.

[0015] Other features and advantages of the invention will be set forth in the following description, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures particularly pointed out in the written description and the accompanying drawings.

[0016] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a block diagram of an integrated measurement system for evaluating the treatment of dentin hypersensitivity according to an embodiment of the present invention; Figure 2 This is a block diagram of an evaluation module according to an embodiment of the present invention; Figure 3 This is a block diagram of an integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity according to another embodiment of the present invention. Detailed Implementation

[0018] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0019] like Figure 1 As shown, this embodiment of the invention proposes an integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity, comprising: The first application module is used to apply tactile stimulation to the patient's teeth; wherein the application force of the tactile stimulation increases in a preset gradient, and the tactile threshold when the patient indicates discomfort is recorded; The second application module is used to apply cold air stimulation to the patient's teeth; wherein the temperature and pressure of the cold air stimulation are controlled within a preset range, and the patient's response score is recorded according to the Schiff Cold Air Sensitivity Scale. The correlation module is used to correlate tactile thresholds and response scores to obtain comprehensive evaluation data; The acquisition module is used to use the initial tactile threshold and initial response score obtained from the patient's first tooth measurement or pre-treatment measurement as baseline data; The assessment module is used to obtain the evaluation results of the treatment efficacy for dentin hypersensitivity based on comprehensive assessment data and baseline data.

[0020] The working principle of the above technical solution is as follows: Before the patient's first visit or the start of treatment, the first application module and the second application module are triggered to perform initial stimulation measurement respectively. The first application module applies tactile stimulation starting at 98 millinewtons and increasing in steps of 98 millinewtons, and records the initial tactile threshold when the patient first feels discomfort. The second application module sprays cold air according to preset temperature and pressure parameters (16℃±2℃, 414 kPa±34 kPa) and records the initial response score.

[0021] The acquisition module binds these two sets of initial data into baseline data and stores them as a benchmark for subsequent efficacy comparisons. After treatment, the dual-stimulation measurement process is repeatedly triggered, and comprehensive evaluation data is obtained based on the first application module, the second application module, and related modules. Based on the comprehensive evaluation data and the baseline data, the evaluation results of the treatment efficacy for dentin hypersensitivity are obtained.

[0022] The beneficial effects of the above technical solution are as follows: By integrating the hardware of the first and second application modules, objective mechanical threshold and subjective temperature perception data are acquired simultaneously, enabling precise capture of efficacy changes in complex cases such as tactile sensitivity but temperature tolerance or temperature sensitivity but tactile tolerance, thus overcoming the problem of the one-sidedness of single assessments. The standardized built-in parameters of the first and second application modules eliminate the problem of poor data repeatability. Data fusion of related modules constructs a multi-dimensional assessment system, improving the accuracy of efficacy assessment for dentin hypersensitivity by comparing comprehensive assessment data with baseline data.

[0023] According to some embodiments of the present invention, the first application module includes a tactile probe, and the force applied to the tactile probe increases linearly according to a preset force value sequence, the force value sequence starting from 98 millinewtons and increasing stepwise in increments of 98 millinewtons until reaching an upper limit threshold of 490 millinewtons.

[0024] The working principle of the above technical solution is as follows: Stimulation intensity is precisely controlled through a preset linear force sequence. First, the force sequence is initialized. The module has a built-in preset program that sets the initial applied force of the tactile probe to 98 millinewtons (basic starting force), ensuring that the stimulation starts at a low intensity that is unlikely to cause discomfort to the patient, avoiding measurement deviations caused by excessively strong initial stimulation. When the patient does not report discomfort, the module increases the probe's applied force in fixed increments (98 millinewtons), maintaining a stable force value after each increase until the patient responds or the next level is reached, ensuring the uniformity and traceability of force value changes. When the patient first clearly indicates tooth discomfort (such as pain or soreness), the current force value is recorded in real time as the tactile threshold, and the force increase stops.

[0025] The beneficial effects of the above technical solution are: it unifies the rules for force value variation, making measurement data of the same patient at different times and baseline data of different patients directly comparable; setting an upper limit of 490 millinewtons covers the sensitivity threshold range of the vast majority of patients while avoiding physical damage to teeth from excessive stimulation, thus balancing measurement effectiveness and patient safety.

[0026] According to some embodiments of the present invention, the tactile probe is an electronic force sensing probe; the electronic force sensing probe is the Yeaple probe 200A model.

[0027] According to some embodiments of the present invention, the second application module includes a control module for controlling the temperature of the cold air stimulus within the range of 16℃±2℃, the pressure within the range of 414 kPa±34 kPa, and continuously spraying the cold air from a distance of 1 cm from the patient's tooth surface for 1 second.

[0028] The working principle of the above technical solution is as follows: The control module integrates a cooling unit and a temperature sensor to monitor the output temperature of the cold air in real time. When the temperature deviates from the range of 16℃±2℃, the sensor feedback signal triggers the cooling unit to adjust its power (such as increasing the cooling intensity) until the temperature returns to the preset range, ensuring that the temperature of the cold air sprayed onto the tooth surface is stable at 19℃-23℃. The control module is equipped with a pressure generator and a pressure regulator, and collects the air pressure in the pipeline in real time through a pressure sensor. When the pressure is lower than 379 kPa, the pressure generator automatically replenishes air; when it is higher than 448 kPa, it releases redundant air pressure, always controlling the spray pressure between 379 kPa and 448 kPa, avoiding abnormal stimulation intensity due to sudden pressure changes. The distance between the cold air spray nozzle and the patient's tooth surface is fixed at 1 cm by a mechanical positioning component, ensuring that the spray range accurately covers the target tooth surface (not the gum or adjacent teeth); at the same time, a built-in timer and solenoid valve are used. When the spray is started, the timer triggers the solenoid valve to open, and it automatically closes after 1 second, strictly controlling the stimulation time and avoiding excessively long or short time due to human operation.

[0029] The beneficial effects of the above technical solution are as follows: By standardizing the control of all parameters of cold air stimulation through the control module, the temperature, pressure, spray distance and spray time are designed to ensure that the Schiff scores of different measurement scenarios are directly comparable, providing stable data for efficacy evaluation, while the stimulation is more precise and the credibility of the Schiff score is improved.

[0030] According to some embodiments of the present invention, the association module is used to bind sequentially collected tactile thresholds and reaction scores into the same data object to obtain comprehensive evaluation data.

[0031] The working principle and beneficial effects of the above technical solution: The association module integrates two indicators into a comprehensive record of "the same time and the same tooth" through data object binding, so that doctors can directly obtain the complete sensitivity status, avoid the one-sidedness of single indicator analysis, and provide a more comprehensive basis for efficacy evaluation.

[0032] like Figure 2 As shown, according to some embodiments of the present invention, the evaluation module includes: The first calculation module is used to calculate the percentage change of the tactile threshold in the comprehensive evaluation data relative to the initial tactile threshold in the baseline data; The second calculation module is used to calculate the change in the level of the response score in the comprehensive assessment data relative to the initial response score in the baseline data; The third calculation module is used to perform weighted calculations based on the percentage change value and the grade change value according to preset weighting coefficients to generate a comprehensive sensitivity index, which serves as an evaluation result of the treatment efficacy of dentin hypersensitivity.

[0033] The working principle of the above technical solution is as follows: The percentage change in the tactile threshold in the comprehensive assessment data relative to the initial tactile threshold in the baseline data is calculated as follows: The difference between the tactile threshold in the comprehensive assessment data and the initial tactile threshold is calculated, divided by the initial tactile threshold, and multiplied by 100% to obtain the percentage change value. The grade change value is the response score minus the initial response score. The response scores of the Schiff Cold Air Sensitivity Scale include 0, 1, 2, and 3. The weight of the percentage change in tactile threshold is 0.6, and the weight of the grade change in response score is 0.4. A comprehensive sensitivity index is generated based on a weighted calculation according to preset weighting coefficients, serving as the evaluation result for the treatment of dentin hypersensitivity.

[0034] The beneficial effects of the above technical solution are as follows: Quantitative evaluation through a comprehensive sensitivity index can reflect both the objective change in mechanical sensitivity (tactile threshold) and the subjective improvement level in temperature sensitivity (subjective rating). By pre-setting weights, the changes in both dimensions are integrated into a comprehensive index, thus avoiding the evaluation bias of a single indicator.

[0035] According to some embodiments of the present invention, it further includes: a generation module for generating a efficacy trend graph and an assessment report based on the assessment results.

[0036] According to some embodiments of the present invention, the generation module includes: The first generation submodule is used to draw at least one efficacy change curve with time as the horizontal axis and the percentage change value of tactile threshold, the level change value of response score and / or comprehensive sensitivity index as the vertical axis, and generate an efficacy trend chart. The second generation submodule is used to generate an assessment report based on the patient's basic information and measurement time points, the raw data of each measurement, the comprehensive sensitivity index, the efficacy trend graph, the automatic grading evaluation of efficacy based on preset rules, and the treatment suggestions given based on the efficacy trend graph and grading evaluation.

[0037] The working principle and beneficial effects of the above technical solution are as follows: The preset rule is to classify and evaluate the efficacy based on the interval where the comprehensive sensitivity index falls. An efficacy trend chart is generated based on the first generation submodule, effectively displaying changes in efficacy. The accuracy and comprehensiveness of the generated assessment report are improved based on the second generation submodule.

[0038] According to some embodiments of the present invention, the criteria for determining the Schiff cold air sensitivity scale are as follows: 0 points: The patient does not respond to air stimuli; 1 point: The patient responds to air stimulation but does not request that the stimulation be stopped; 2 points: The patient responds to air stimuli and requests to stop or avoid the stimulation; 3 points: The patient responds to air stimulation, perceives the stimulation as painful, and requests that the stimulation be stopped.

[0039] like Figure 3 As shown, according to some embodiments of the present invention, it further includes: a positioning module, used for: Before the first application module applies tactile stimulation to the patient's teeth, a light scanning probe is inserted into the patient's oral cavity through a flexible gooseneck tube to scan the patient's teeth and surrounding tissues and collect point cloud data. Based on the point cloud data, a three-dimensional model of the tooth is generated using the Poisson surface reconstruction algorithm, and sensitive areas and their geometric parameters are marked. The three-dimensional model of the tooth is then imported into a unified coordinate system to generate a coordinate mapping relationship between the tooth and the reference point. A medical adhesive tag is affixed to a fixed position inside the patient's mouth. The tag contains built-in infrared reflective dots, serving as a positioning reference. An infrared tracking camera captures these reflective dots, obtaining the tag's coordinates in a unified coordinate system. A miniature camera inside the mouth simultaneously acquires images of the patient's teeth. Sensitive areas are located using image recognition algorithms and the tag's coordinates in the unified coordinate system. These coordinates are compared with those of the sensitive areas in a 3D tooth model to correct positioning errors. The relative positional deviation between the first application module and the sensitive areas is calculated. This deviation data includes distance deviation Δd, angle deviation Δθ, and planar offset Δx / Δy. Based on the relative position deviation data, a PID control algorithm is used to generate motion commands for the multi-axis robotic arm to adjust the spatial attitude of the first application module. The multi-axis robotic arm executes motion commands to adjust the spatial orientation of the first application module, so that the first application module applies tactile stimulation to the sensitive area of ​​the patient's teeth.

[0040] The working principle of the above technical solution is as follows: The positioning module first inserts into the patient's oral cavity through a flexible gooseneck tube equipped with a light scanning probe to scan the patient's teeth and surrounding tissues, collecting point cloud data. Based on the point cloud data, a three-dimensional model of the tooth is generated using a Poisson surface reconstruction algorithm, marking sensitive areas and their geometric parameters, including area, center coordinates, and distance from the gingival margin. The three-dimensional model of the tooth is imported into the system's unified coordinate system (using fixed anatomical structures within the patient's oral cavity, such as the mandibular chin or maxillary tuberosity, as reference points), generating a coordinate mapping relationship between the sensitive areas of the tooth and the reference points, serving as a reference system. Medical adhesive markers are affixed to fixed positions within the patient's oral cavity. These markers have built-in infrared reflective points, serving as positioning reference points and acting as spatial anchor points for real-time positioning. Intraoral fixed positions refer to easily exposed locations such as mucosal folds near the corners of the mouth and the occlusal surfaces of teeth. When the patient maintains a slightly open mouth, these fixed positions can directly form an unobstructed field of view with the infrared tracking camera. The infrared reflective points use high-reflectivity infrared-specific reflective materials, whose reflected infrared wavelengths have the characteristic of penetrating the soft tissue gaps of the oral cavity, effectively avoiding obstruction from thin tissues such as the lips and cheeks. Simultaneously, the infrared reflective points can be arranged in an array design. Based on the infrared tracking camera capturing the infrared reflective points, the coordinates of the markers in a unified coordinate system are obtained in real time, indirectly linking to the real-time position of the teeth. A miniature camera inside the oral cavity simultaneously acquires images of the patient's teeth. Through the ORB feature matching algorithm, it quickly identifies feature points on the tooth surface, locates sensitive areas, and compares the marker coordinates obtained from infrared tracking with the preset coordinates of the sensitive areas in the 3D model of the teeth. If there is a deviation between the coordinates of the sensitive area identified in the image and the preset coordinates of the 3D model of the teeth (such as due to slight head movements of the patient), a correction value is automatically calculated, and the real-time coordinates of the sensitive area are updated. Based on the corrected real-time coordinates of the sensitive area, the relative positional deviation data is calculated by comparing them with the current spatial coordinates of the first application module (tactile probe): distance deviation Δd: the straight-line distance deviation between the tip of the tactile probe and the center of the sensitive area; angle deviation Δθ: the angular deviation between the axis of the tactile probe and the normal direction of the surface of the sensitive area (tactile stimulation requires the tactile probe to be at a preset angle with the sensitive area, such as 40°±5°); plane offset Δx / Δy: the offset of the tactile probe in the X and Y axes of the plane where the sensitive area is located. The deviation data is input into the PID control algorithm to generate motion commands for the multi-axis robotic arm. After receiving the commands, the multi-axis robotic arm drives the first application module (tactile probe) to adjust its spatial posture, translates to eliminate the distance deviation Δd and plane offset Δx / Δy, and rotates to correct the angle deviation Δθ, so that the tactile probe is accurately aligned with the center of the sensitive area and the posture meets the requirements of tactile stimulation. Then, the first application module is triggered to apply tactile stimulation.

[0041] The beneficial effects of the above technical solution are: avoiding manual positioning and improving the positioning accuracy of sensitive areas. Real-time positioning and deviation correction are achieved through infrared tracking and image comparison, resisting interference from patient movement, reducing reliance on doctor experience, standardizing the positioning process, and facilitating the movement of the first application module to the accurate position for applying tactile stimulation to the patient's teeth.

[0042] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity therapy, characterized in that, include: The first application module is used to apply tactile stimulation to the patient's teeth; wherein the application force of the tactile stimulation increases in a preset gradient, and the tactile threshold when the patient indicates discomfort is recorded; The second application module is used to apply cold air stimulation to the patient's teeth; wherein the temperature and pressure of the cold air stimulation are controlled within a preset range, and the patient's response score is recorded according to the Schiff Cold Air Sensitivity Scale. The correlation module is used to correlate tactile thresholds and response scores to obtain comprehensive evaluation data; The acquisition module is used to use the initial tactile threshold and initial response score obtained from the patient's first tooth measurement or pre-treatment measurement as baseline data; The assessment module is used to obtain the evaluation results of the treatment efficacy for dentin hypersensitivity based on comprehensive assessment data and baseline data.

2. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 1, characterized in that, The first application module includes a tactile probe. The force applied to the tactile probe increases linearly according to a preset force value sequence, which starts from 98 millinewtons and increases step by step in increments of 98 millinewtons until it reaches an upper limit threshold of 490 millinewtons.

3. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 2, characterized in that, The tactile probe is an electronic force sensing probe.

4. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 1, characterized in that, The second application module includes a control module for controlling the temperature of the cold air stimulation within the range of 16℃±2℃ and the pressure within the range of 414 kPa±34 kPa, and for continuously spraying the cold air from a distance of 1 cm from the patient's tooth surface for 1 second.

5. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 1, characterized in that, The association module is used to bind the tactile thresholds and reaction scores collected successively into the same data object to obtain comprehensive evaluation data.

6. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 5, characterized in that, The evaluation module includes: The first calculation module is used to calculate the percentage change of the tactile threshold in the comprehensive evaluation data relative to the initial tactile threshold in the baseline data; The second calculation module is used to calculate the change in the level of the response score in the comprehensive assessment data relative to the initial response score in the baseline data; The third calculation module is used to perform weighted calculations based on the percentage change value and the grade change value according to preset weighting coefficients to generate a comprehensive sensitivity index, which serves as an evaluation result of the treatment efficacy of dentin hypersensitivity.

7. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 1, characterized in that, Also includes: The generation module is used to generate efficacy trend charts and assessment reports based on the assessment results.

8. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 7, characterized in that, The generation module includes: The first generation submodule is used to draw at least one efficacy change curve with time as the horizontal axis and the percentage change value of tactile threshold, the level change value of response score and / or comprehensive sensitivity index as the vertical axis, and generate an efficacy trend chart. The second generation submodule is used to generate an assessment report based on the patient's basic information and measurement time points, the raw data of each measurement, the comprehensive sensitivity index, the efficacy trend graph, the automatic grading evaluation of efficacy based on preset rules, and the treatment suggestions given based on the efficacy trend graph and grading evaluation.

9. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 1, characterized in that, The criteria for determining Schiff's cold air sensitivity scale are as follows: 0 points: The patient does not respond to air stimuli; 1 point: The patient responds to air stimulation but does not request that the stimulation be stopped; 2 points: The patient responds to air stimuli and requests to stop or avoid the stimulation; 3 points: The patient responds to air stimulation, perceives the stimulation as painful, and requests that the stimulation be stopped.

10. The integrated measurement system for evaluating the treatment efficacy of dentin hypersensitivity as described in claim 1, characterized in that, Also includes: The positioning module is used for: Before the first application module applies tactile stimulation to the patient's teeth, a light scanning probe is inserted into the patient's oral cavity through a flexible gooseneck tube to scan the patient's teeth and surrounding tissues and collect point cloud data. Based on point cloud data, a three-dimensional model of the tooth is generated using the Poisson surface reconstruction algorithm, and sensitive areas and their geometric parameters are marked. Import the 3D model of the tooth into a unified coordinate system to generate the coordinate mapping relationship between the tooth and the reference point; A medical adhesive tag is affixed to a fixed position inside the patient's oral cavity. The tag contains built-in infrared reflective dots, serving as a positioning reference. An infrared tracking camera captures these reflective dots to obtain the tag's coordinates in a unified coordinate system. A miniature camera inside the oral cavity simultaneously acquires images of the patient's teeth. Sensitive areas are located using image recognition algorithms and the tag's coordinates in the unified coordinate system. These coordinates are compared with the coordinates of the sensitive areas in a 3D tooth model to correct positioning errors. The relative positional deviation between the first application module and the sensitive areas is calculated; this deviation data includes distance deviation, angle deviation, and planar offset. Based on the relative position deviation data, a PID control algorithm is used to generate motion commands for the multi-axis robotic arm to adjust the spatial attitude of the first application module. The multi-axis robotic arm executes motion commands to adjust the spatial orientation of the first application module, so that the first application module applies tactile stimulation to the sensitive area of ​​the patient's teeth.

Images