System and procedure for determining movement patterns during dental treatment

Abstract

Method for determining at least a partial movement pattern of a dental treatment instrument (14), in particular a toothbrush, resulting during dental treatment, in particular tooth cleaning, comprising at least the following steps: Acquisition of data by means of at least one optical acquisition device (4) relating to at least one movement parameter of the dental treatment device (14) which is moved in at least one X / Y plane for the treatment of surface parts of the teeth relative to a first reference system which moves with the head of the person being treated (8) wherein the optical acquisition device is designed as at least one camera for the three-dimensional acquisition of the at least one movement parameter of the dental treatment device, wherein at least one or both pupils and / or the nose of the person being treated are located in a detection area of ​​the camera, wherein a processor device (2) defines a further three-dimensional reference system that moves with the dental treatment device (14) when the dental treatment device (14) is moved in space, wherein the reference system is formed by characteristic anthropometric body points, body lines and / or body surfaces of the hand with which the dental treatment device (14) is guided, and providing the acquired data to a processor device (2) for determining the movement pattern, wherein the movement of the dental treatment device is recorded relative to the first reference system coupled with a movement of the head, the dental treatment device is an electric toothbrush, wherein the processor device is a mobile phone or a tablet PC and wherein the processor device includes the optical detection device.

Description

[0001] The invention relates to a system, method, and computer program for determining movement patterns during dental treatment, particularly teeth cleaning. Due to the relatively long intervals of up to several months or even years between individual dental visits, the problem arises that the dentist's instructions regarding frequency, duration, and type of treatment are easily forgotten, or that movement patterns develop over time that are not optimal. This can lead to suboptimal oral hygiene or damage to the oral cavity, especially to hard and / or soft oral components such as the teeth, jaw, and / or gums.

[0002] The publication EP 1 379 149 B1 discloses a method for monitoring the position of a toothbrush in relation to a person's teeth, the method comprising: providing a toothbrush with a first position sensor, wherein the first position sensor is at least sensitive to changes in position and orientation; providing a second position sensor in a fixed positional relationship to the teeth, wherein the second position sensor is sensitive to changes in position and orientation; transmitting the output of the first position sensor and the second position sensor to the processing device, and the processing device comparing the two sensor outputs to monitor the position of the toothbrush in relation to the teeth over a period of time.

[0003] This system is disadvantageous because it requires complex sensors to be precisely attached to a face, making the system expensive and complex, thus hindering high market acceptance.

[0004] In their article "Playful Toothbrush: UbiComp Technology for Teaching Tooth Brushing to Kindergarten Children," Yu-Chen Chang et al. describe a system that optically records the movement of the toothbrush. This system has drawbacks because the recorded movements are undefined in space, meaning that head movements can distort the recorded data. Furthermore, it requires complex modifications to the toothbrush, making the system expensive and therefore unsuitable for a mass market. Additionally, the system must be permanently installed so that a camera can accurately detect the modified toothbrush.

[0005] Furthermore, both systems are based on predefined data sets, which makes it impossible to improve knowledge about tooth brushing movements.

[0006] Furthermore, publication WO 2006 / 137648 A1 discloses an electric toothbrush with built-in motion sensors, which determine the movements of the toothbrush.

[0007] Furthermore, document US 2010 / 0170052 A1 discloses a method by which the head of a person brushing their teeth and the toothbrush used are optically detected during tooth brushing.

[0008] The object of the present invention is therefore to provide a system, a method, and a computer program product that enables the optimization of oral health, in particular oral hygiene, dental health, jaw health, and / or gum health. Preferably, the invention should also enable monitoring, in particular for continuous or permanent control, of oral hygiene. Furthermore, preferably, the invention should be as simple and inexpensive as possible and usable by as many people as possible. This object is achieved, firstly, by a method according to claim 1 and, secondly, by a system according to claim 2.The method for at least partially determining a movement pattern of a dental treatment device, in particular a toothbrush, resulting during dental treatment, especially tooth cleaning, and which is particularly person-specific, preferably comprises at least the steps of moving the dental treatment device to treat surface portions of the teeth at least in an X / Y plane and preferably also in at least one further plane, in particular the X / Z plane and / or the Y / Z plane, wherein data relating to at least one and preferably several, in particular exactly, at least or at most two, three, four, five, six or more, movement parameters of the dental treatment device, in particular the direction of movement, the acceleration, the distance and / or the speed, are recorded by means of an optical detection device, and the dental treatment device is at least temporarily three-dimensionally, i.e.The object moves in the X, Y, and Z directions, and the motion parameters are preferably captured as dependent on direction and / or orientation. The XY plane is a plane that extends in the X and Y directions; other possible planes extend analogously, with the X, Y, and Z axes each being perpendicular to each other.

[0009] This solution is advantageous because data collection is independent of location and time, allowing for monitoring and objective assessment of dental treatment at any time, even at home. The collected data is processed, preferably in real time, so that, for example, a treating dentist, the individual patient, or the patient themselves can analyze the movement patterns, enabling individual adjustments to the dental treatment techniques. The data collected in this way can be used not only for the immediate optimization of movement patterns but also on a larger scale, for example, by health insurance companies and / or research institutions.Transmitting the data to a central evaluation station opens up the possibility, firstly, of processing the generated raw data centrally with adequate computing power, comparing it with optimal movement patterns, and sending it to the local end devices. Secondly, it also enables the data to be made available for large-scale clinical studies, research purposes, or commercial statistical use (e.g., for health insurance companies). According to a further preferred embodiment of the present invention, a method for determining at least one movement characteristic is provided.The method preferably comprises at least the steps of repeatedly executing the method according to claim 1, in particular on different terminal devices, to record the movement patterns of different persons and preferably their statistical evaluation, wherein it is additionally or alternatively conceivable that a movement characteristic for a person can be generated or determined, and the step of determining at least one common property, in particular a movement parameter and / or the duration of the dental treatment, of the determined movement patterns or the recorded data. This embodiment is advantageous because one or more movement characteristics can be derived from the movement patterns of individual persons, which are representative of the dental treatment behavior of the respective person.However, it is also conceivable, either additionally or alternatively, that the movement patterns or movement characteristics of individuals could be grouped based on matching features. Furthermore, it is conceivable that a step involving the comparison of specific movement patterns or the recorded data with characteristic standard data is performed, with this data being provided in a database. This database is stored at least partially locally on a mobile device and / or at least partially on a server. It is also conceivable that, during device use, a step involving the output of information, particularly visual, haptic, and / or acoustic output, regarding corrective, standard, and / or ideal movements, especially depending on the current state, i.e., the user's physical condition, is addressed.in real time, specific movement patterns, or dependent on a predefined movement pattern or characteristic. Optical output preferably means the visual representation of the corrective, standard, and / or ideal movements on a screen or projection surface, whereby visual output can be understood as the display of individual images and / or an animated film. Acoustic output preferably describes the output of specific tones and / or the output of voice commands. Haptic output can be understood, for example, as the defined output of vibrations. With regard to optical output in particular, the corrective, standard, and / or ideal movements can preferably be output alongside, above, and / or in comparison to the actually detected movement pattern(s). Corrective movements can, for example,Display a suggestion for a change or adjustment to the recorded movement pattern. Standard movements can be, for example, the average movements of a defined group of people or those known to be optimal from clinical studies. Ideal movements can be, for example, movements that are extremely gentle, cleansing, and / or time-efficient, etc.

[0010] According to a further preferred embodiment of the present invention, a method for monitoring dental treatment movements and for outputting correction parameters for adjusting the dental treatment movements is provided. The method comprises the method for at least partially determining a movement pattern of a dental treatment device, in particular a toothbrush, resulting during a dental treatment, in particular tooth cleaning, which includes the steps of: moving the dental treatment device to treat surface portions of the teeth at least in an X / Y plane, wherein data relating to at least one movement parameter of the dental treatment device, in particular the direction or rotation of movement, the acceleration, the distance and / or the velocity, are acquired by means of a detection device, in particular a sensor device.and providing the recorded data to a processor or system for determining the movement pattern, and the steps of comparing the recorded movement patterns with movement patterns stored in a database, deriving or determining correction parameters, in particular at least one direction of movement, to adjust the movement of the dental treatment instrument depending on the compared movement patterns, and outputting information via an output device depending on the derived or determined correction parameters. This method is advantageous because it preferably provides immediate feedback or correction information to a person performing dental treatment, in particular teeth cleaning.The child should be guided through the dental treatment device with a movement or movement pattern deemed unsuitable. This is how, for example, children can learn to brush their teeth correctly. An optical output device, such as the display of a mobile phone, a game console, or a tablet PC, can output an image or video showing the child the optimal movement patterns. Using an optical detection device, in particular a camera, which is preferably signal-linked to the output device and preferably housed in the same casing as the output device, the child's movements can be detected and thus monitored. If the child deviates from the displayed movements or movement patterns, a signal can be output to clarify the deviation for the child. Preferably, the detection device and the output device are...In particular, for the optical and / or haptic and / or acoustic output of signals and / or instructions, as part of a single device, especially a mobile device. The device is preferably designed as a portable processor unit, particularly a mobile phone or tablet PC. Furthermore, it is conceivable that a calibration step is performed once or repeatedly. Calibration is preferably understood to mean the determination of the specific or personal characteristics of the body, especially the head or a part of the head. Particularly preferably, during calibration, the optical detection device detects several fixed points on the body, preferably one or more front teeth and / or the contact area or boundary area between the front teeth extending in the longitudinal direction of the teeth. These are preferably the central incisors.especially of the upper jaw, although it is conceivable that the central incisors of the lower jaw could also be recorded, either as a first step or as an alternative. Recording the position of the upper incisors and / or the border between them is often possible with the upper lip raised, which, however, cannot always be guaranteed when brushing teeth. Nevertheless, recording the position of the incisors and / or the border between them in relation to other anthropometric points on the facial surface, especially the nose, cheeks, and forehead region, or the pupils, offers valuable information.One possibility is to define an extremely precise coordinate system or reference system on a person's head. For clinical studies, this should preferably be related to established dental coordinate definitions such as the Frankfurt Horizontal, Camper's Plane, or the occlusal plane. Furthermore, such a defined coordinate system can be additionally linked to other body points, in particular the nose, chin, forehead, an ear, etc. This is advantageous because, firstly, the once-defined coordinate system remains always traceable regardless of the lip position, thus ensuring that the position of the teeth is always known, and secondly, the shape of the body part, e.g., the nose, is irrelevant. Any soft tissue deformation that may occur during the opening of the collar should be compensated for by appropriate correction calculations to further increase the accuracy of the method. It is also conceivable that...that a sensor device is provided to detect the contact pressure exerted on the mouth, teeth, and / or gums by the dental appliance. Alternatively or additionally, it is conceivable that the pressure is detected using an optical detection device. In this case, a bending of the dental appliance is detected and adjusted based on known strength values ​​of the dental appliance. These strength values ​​can be stored in a database or be stored in a database. Furthermore, it is conceivable that the dental appliance itself or its packaging (barcode) is optically detected and identified. The identification of the dental appliance enables the information pertaining to its specific properties, particularly its strength values, to be automatically stored or retrieved by a processor. It is also conceivable that...that the information regarding the properties of a dental treatment device can also be made available, stored, or registered manually in a database, particularly on a mobile device. Preferably, the information regarding the properties should be stored locally on the mobile device or on a server in data form.

[0011] According to a further preferred embodiment of the present invention, the processor device is a mobile phone that sends the acquired data via the internet to a server for further processing and / or receives data via the internet for output by means of an output device of the mobile phone, wherein the data includes information regarding movement parameters of the dental treatment device. Furthermore, the aforementioned problem is solved by a system for at least partially determining a personalized and preferably dynamic movement pattern of a dental treatment device, in particular a toothbrush, that results during dental treatment, especially teeth cleaning. A dynamic movement pattern is preferably understood here as a movement pattern that is defined at least partially by speed information and / or acceleration information of the dental treatment device relative to a treatment area.The system preferably comprises at least one detection device, in particular a sensor device or an optical detection device, for capturing data on at least one movement parameter, in particular the direction of movement, acceleration, distance traveled, and / or speed, of the dental appliance, and at least or exactly one data processing device for generating movement patterns based on the captured data. It is conceivable that the data processing device is preferably a device that can be connected to the internet, at least temporarily, in particular a computer, a digital camera, a game console, a tablet computer, a laptop, a television, and / or a mobile phone. Furthermore, it is conceivable that the data processing device generates the movement patterns partially or completely.Preferably, the data processing device transmits the movement patterns generated, in whole or in part, to a server, which preferably receives personalized movement patterns of dental treatment instruments from a multitude of data processing devices. The data transmission can be based, for example, on an energy, connection, time, data volume, and / or dental treatment repetition criterion, where the dental treatment repetition criterion preferably specifies a concrete number of dental treatments. The connection criterion preferably specifies the type and / or quality of the internet connection, e.g., whether it is a mobile data plan or a local network, such as a Wi-Fi network. The energy criterion preferably indicates the charge level of an end device, particularly a mobile device, powered by a battery.This criterion-dependent transmission of partially or fully generated motion patterns is advantageous because the calculation of the motion patterns can initially be performed on the end-device side, thus keeping the amount of data transfer between the individual end devices and the server relatively low. Furthermore, this is advantageous because the server requires significantly less computing power when it receives and processes already partially or fully processed motion patterns. The server then preferably does not need to first generate or calculate the complete motion patterns from the raw data. Alternatively, however, it is also conceivable that the data captured by the detection device is forwarded to the server for further processing.The data can be forwarded immediately after capture or based on specific criteria. These criteria could include, for example, energy consumption, connection speed, time, data volume, and / or the frequency of dental treatments. Preferably, in this configuration, the server can be considered a data processing device; that is, a data processing device that processes the captured data is not necessarily required on the end-user side or within the detection system. However, a processing device, particularly a mobile phone, is preferably provided that at least forwards the data to the server. In a particularly preferred embodiment, the server has access to clinically collected information about the patient's dental health, the number of dental visits per year, treatment history, dental cleaning products used, etc.The system records the movements of specific individuals and links this information to the recorded movement patterns of each person using the device. The recorded movement parameters of a specific individual are preferably attributable to that individual via a personalization element, such as a name query, a password query, a telephone number, an email address, or a pseudonym. This embodiment is advantageous because the data generated by the server, consisting of the dental health status, the number of dental visits per year and / or the treatment history, and the recorded movement parameters or patterns, allows for clear monitoring and analysis, and provides insights for further improving dental treatment techniques.

[0012] A dental treatment device, preferably usable in the system according to the invention, in particular a toothbrush, oral irrigator, gas jet, especially an air jet, sandblaster, drill, ultrasonic cleaner, etc., preferably comprises at least one guide support structure, wherein a treatment device for at least indirect contact with a tooth surface and a contact area for holding the dental treatment device are arranged or formed on the guide support structure, wherein a detection device, in particular a position, velocity, acceleration and / or rotation sensor, for recording movement parameters is physically connected to the guide support structure at least during use of the dental treatment device. It is conceivable that the detection device can be coupled to or is coupled to any dental treatment device.Furthermore, it is conceivable, particularly in the case of electric toothbrushes, that the detection device is permanently attached to the electric toothbrush. According to a further preferred embodiment of the present invention, the dental treatment device has a communication interface for transmitting the acquired data, particularly in raw or processed form, to a data processing device, wherein the communication interface is particularly preferably designed such that the data can be transmitted wirelessly.

[0013] According to a further preferred embodiment of the present invention, the system comprises a processor device, in particular a mobile terminal, such as a mobile phone, which preferably has at least one optical detection device, in particular a camera, for capturing data of at least one motion parameter, in particular the direction or rotation of movement, the acceleration, the distance traveled and / or the speed, of a dental treatment instrument, and a data processing device for the in particular image separation of the dental treatment instrument from at least one further image component captured by the optical detection device and for determining at least one motion pattern corresponding to the motion parameter.

[0014] The optical detection device is preferably used in the system as a detection device for at least partially determining a personal movement pattern resulting during dental treatment, in particular tooth cleaning.

[0015] In the case of a detection device designed as an optical scanning device, it is conceivable that the dental treatment device is provided with an optically characteristic shape, preferably corresponding to a coordinate system or assuming its functionality, in order to enable spatial detection of a movement parameter of the dental treatment device when using exactly one or at least one camera. Additionally or alternatively, it is also conceivable that the dental treatment device is equipped with one or more sensor devices and that the data processing device uses the sensor data and the data from the optical scanning device to determine the movement parameter.

[0016] Furthermore, it is also conceivable that the dental treatment device is equipped with one or more sensor devices if the processor device or system has at least or exactly two or more cameras, in particular three cameras. In this case, the data processing device can use data from one, several, or all cameras and / or sensors to determine the movement parameter.

[0017] According to a further preferred embodiment of the present invention, the optical detection device comprises at least one, and in particular exactly or at least two, cameras for the three-dimensional detection of the at least one movement parameter of a dental treatment device, wherein the processor device defines a three-dimensional coordinate system or reference system that moves with the dental treatment device when it moves in space. The coordinate system or reference system can be formed by characteristic anthropometric body points, body lines, and / or body surfaces of a body part of a person, in particular the hand with which the dental treatment device is guided. However, it can also be formed by surface points, lines, and / or surfaces of the dental treatment device.The second camera is preferably fixed in relation to the first camera, allowing for a one-time calibration of the detection system before use. It is also preferred that the at least two cameras are movable relative to each other. Preferably, the at least two cameras are at least, exactly, or at most 2, 3, 4, 5, or 6 cameras.

[0018] According to a further preferred embodiment of the present invention, the optical detection device detects a portion of a person's head and establishes a three-dimensional coordinate system or reference system within that portion. A movement of the dental treatment device is then determined based on the established coordinate system of the head, or a movement of the detected portion of the head is determined based on the coordinate system of the dental treatment device. It is conceivable that the coordinate system is directly associated with the dental treatment device, or alternatively, that the coordinate system is defined at least partially, and preferably completely, by means of defined portions of the body surface, in particular two or more knuckles of the hand that form the transition between the palm and the fingers.

[0019] This embodiment is advantageous because any dental treatment device, in particular any commercially available toothbrush or electric toothbrush, can be optically detected, and the prevalence of optical detection devices, especially handheld cameras, is very high, making the invention applicable to an extremely large number of people. It is particularly preferred that the data processing device be able to identify and separate the dental treatment device from the other image components in such a way that its movements, in particular relative to or against a reference or coordinate system fixed on or in the area of ​​the person's head, can be detected and, more preferably, evaluated.Furthermore, and especially preferably, at least or exactly one body part of a person is identifiable and separable from the other image components by the data processing device in such a way that a movement parameter of the dental treatment device relative to the body part can be determined or calculated. The body part is preferably a part of the head, such as the forehead, eyebrows, eye socket, mouth, lips, ears, cheeks, and / or chin; preferably one or more body-solid, especially skull-solid, parts such as the forehead, chin, and / or nose. However, it is also conceivable that several body parts, such as the eyes, mouth, and / or nose, are captured. It is therefore conceivable that one or more photos of the operator or the patient, especially of the operator's head or face, are captured and stored. Individual body shapes, especially facial features, are preferred.Characteristic facial features can be manually or automatically captured or defined, or registered as reference points or surfaces against which one or more movement parameters of the dental appliance are recorded. Reference points can include, for example, one or two eyes, the nose, the mouth, one or two ears, and / or one or two lips. Additionally or alternatively, the eyebrows or eyes, particularly the pupils, of a person can be captured. A line or axis connecting the eyes or pupils, especially the center of the eyes or pupils, can then be defined. This line or axis can define a direction, particularly the X, Y, or Z direction, of a coordinate system. Furthermore, a second line or axis can be defined in the direction of extension of the nose, particularly the bridge of the nose.A second direction, preferably a second direction different from the first, in particular the X, Y, or Z direction, of the coordinate system is defined. Preferably, the first and second directions are substantially or exactly perpendicular to each other. A third direction preferably extends perpendicularly to a plane spanned by the first and second directions. Capturing the movement of the dental treatment device relative to a coordinate system coupled with head movement is highly advantageous, as the person performing the dental treatment can make head and / or body movements without the capture of the movement patterns becoming inaccurate or impossible.

[0020] Furthermore, it is possible to use a position, speed and / or acceleration sensor or a video tracking system to determine a movement pattern of a dental treatment instrument that results during dental treatment.

[0021] Furthermore, the aforementioned problem is solved by a method for determining a movement pattern or movement sequence of a dental treatment device resulting during dental treatment according to claim 4.

[0022] Furthermore, the aforementioned problem is solved by a method for monitoring dental treatment movements and for outputting correction parameters for adjusting the dental treatment movements according to claim 5.

[0023] Furthermore, the invention relates to a storable and executable program code of a computer program product for executing a previously mentioned method.

[0024] Individual or all of the figures described below are preferably to be regarded as construction drawings, i.e. the dimensions, proportions, functional relationships and / or arrangements resulting from the figure(s) preferably correspond exactly or preferably substantially to those of the device or product according to the invention.

[0025] Further advantages, objectives, and features of the present invention are explained below with reference to the accompanying drawings, which illustrate exemplary processor devices or systems according to the invention for capturing movement patterns during dental treatment. Elements of the devices and methods according to the invention that are at least substantially identical in their function in the figures may be identified by the same reference numerals, without these components or elements needing to be numbered or explained in all figures. The invention is described below purely by way of example with reference to the accompanying figures. These show:

[0026] Fig. 1a a system according to the invention for recording dental treatment movements and

[0027] Fig. 1b an internet-based network according to the invention, into which several systems according to the invention are integrated.

[0028] In Fig. Figure 1a shows a system 1 for recording dental treatment movements using a processor device 2 or a mobile device 2. The mobile device 2, which is preferably a mobile phone, preferably has at least one optical recording device 4, which may preferably be a camera. The camera preferably records exactly or more than 15 fps (frames per second or images per minute), exactly or more than 30 fps, exactly or more than 45 fps, exactly or more than 60 fps, exactly or more than 75 fps, exactly or more than 90 fps, exactly or more than 120 fps, or more than 200 fps. Reference numeral 6 designates the recording area, in which preferably at least a part of the head, in particular one or both pupils, the nose, and / or the mouth, of a person 8 is located. Reference symbols 10 and 12 denote person-fixed axes or coordinate directions that preferably follow exactly one movement of the head.Reference symbol 14 designates a dental treatment instrument shaped like a toothbrush, which, according to reference symbol 16, is moved in space and thus relative to the head. On the optical output device 18 of the processor device 2, movement sequences for correcting the movement and / or for specifying a movement sequence can be displayed. Fig. Figure 1b shows that several processor devices 2 transmit data to a server via a data connection, in particular an internet connection, which preferably generates optimized movement characteristics from the recorded movement patterns, especially depending on the medical histories of the individual persons.

Claims

[1] Method for determining at least part of a movement pattern of a dental treatment device (14), in particular a toothbrush, resulting during dental treatment, in particular tooth cleaning, comprising at least the following steps: Acquisition of data by means of at least one optical acquisition device (4) relating to at least one movement parameter of the dental treatment device (14) which is moved in at least one X / Y plane for the treatment of surface parts of the teeth relative to a first reference system which moves with the head of the person being treated (8) wherein the optical acquisition device is designed as at least one camera for the three-dimensional acquisition of the at least one movement parameter of the dental treatment device, wherein at least one or both pupils and / or the nose of the person being treated are located in a detection area of ​​the camera, wherein a processor device (2) defines a further three-dimensional reference system that moves with the dental treatment device (14) when the dental treatment device (14) is moved in space, wherein the reference system is formed by characteristic anthropometric body points, body lines and / or body surfaces of the hand with which the dental treatment device (14) is guided, and providing the acquired data to a processor device (2) for determining the movement pattern, wherein the movement of the dental treatment device is recorded relative to the first reference system coupled with a movement of the head, the dental treatment device is an electric toothbrush, wherein the processor device is a mobile phone or a tablet PC and wherein the processor device includes the optical detection device. [2] System for determining at least part of a dynamic movement pattern of a dental treatment device (14), in particular a toothbrush, resulting during dental treatment, in particular tooth cleaning, comprising at least: a detection device, namely an optical detection device for capturing data on at least one movement parameter of the dental treatment device (14) relative to a first reference system that moves with the head of the person being treated (8), wherein the optical detection device is designed as at least one camera for three-dimensional detection of the at least one movement parameter of the dental treatment device, wherein at least one or both pupils and / or the nose of the person being treated are located in a detection area of ​​the camera, wherein a data processing device defines a further three-dimensional reference system that moves with the dental treatment device (14) when the dental treatment device (14) is moved in space, wherein the reference system is formed by characteristic body points, body lines and / or body surfaces of the hand with which the dental treatment device (14) is guided,and a data processing device for generating the movement pattern based on the recorded data, wherein the movement of the dental treatment device is recorded relative to the first reference system coupled with a movement of the head, the dental treatment device is an electric toothbrush. [3] Method according to claim 1, characterized by that the dental treatment device (14) is equipped with one or more sensor devices and the data processing device for determining the movement parameter uses the sensor data and the data of the optical detection device (4), wherein the sensor device or sensor devices are physically connected to the dental treatment device (14) at least during the dental treatment. [4] Method for determining a movement pattern or course of movement of a dental treatment device resulting from dental treatment (14) comprising at least the following steps: Moving the dental treatment device (14) to treat surface portions of the teeth at least in one X / Y plane, wherein data relating to at least one movement parameter of the dental treatment device (14) relative to a reference system moving with the head of the person being treated are recorded by means of at least one optical detection device (4), wherein the data represent characteristic points on the surface of the dental treatment device (14) and / or lines on the surface of the dental treatment device (14) and / or surface fractions of the dental treatment device (14), - Providing the collected data to a processor (2) to determine the movement pattern, wherein the processor device (2) defines a further three-dimensional reference system which, when the dental treatment device (14) is moved, moves at least temporarily in space with the dental treatment device (14), wherein the further reference system is formed from the characteristic points on the surface of the dental treatment device (14) and / or the lines on the surface of the dental treatment device (14) and / or the surface portions of the dental treatment device (14), wherein the processor device includes the optical detection device, wherein the optical detection device is designed as at least one camera for three-dimensional detection of at least one movement parameter of the dental treatment device, wherein at least one or both pupils and / or the nose of the treated person are located in a detection area of ​​the camera - Providing sensor data from one or more sensor devices, wherein the one or more sensor devices are physically connected to the dental treatment device (14) at least during the dental treatment, wherein the dental treatment device is an electric toothbrush and - Determination of the movement pattern or movement sequence, wherein the data acquired by means of the optical detection device (4) and the data acquired by means of the sensor device or sensor devices are used to determine the movement pattern or movement sequence, - wherein the processor device is a mobile phone or a tablet PC, wherein the movement of the dental treatment device is detected relative to the first reference system coupled with a movement of the head. [5] Method for monitoring dental treatment movements and outputting correction parameters for adjusting dental treatment movements, comprising the steps: Coupling a detection device to the dental treatment device (14), wherein the detection device includes at least one acceleration and / or rotation sensor and wherein the dental treatment device (14) is an electric toothbrush Moving the dental treatment device (14) to treat surface portions of the teeth at least in one X / Y plane, wherein data relating to at least one movement parameter of the dental treatment device (14) are recorded by means of the detection device, wherein the recorded movement parameters of a specific person (8) are assigned to that specific person (8) by means of a personalization instance, and Providing the collected data to a processing device (2) for determining the movement pattern, wherein the processing device is a mobile phone or a tablet PC, where the mobile phone or tablet PC has at least or exactly one camera, wherein at least one or both pupils and the mouth of the specific person 8 and the electric toothbrush (14) are located within a detection range of the camera where the mobile phone or tablet PC uses sensor data and camera data to determine the motion parameter Determining the movement pattern using a mobile phone or tablet PC, Comparing the recorded movement pattern with movement patterns stored in a database, Deriving or determining correction parameters to adjust the movement of the dental treatment device (14) depending on the matched movement patterns and Real-time output of information via an output device (18) depending on the derived or determined correction parameters. [6] Storable and executable program code of a computer program product for carrying out one of the aforementioned procedures.

Images