EP3679831B1 - Method for determining movement patterns in dental treatment - Google Patents

Description

The invention relates to a system and a method for determining movement patterns in dental treatment, in particular teeth cleaning. Due to the relatively long intervals of up to several months or even years between individual visits to the dentist, the problem arises that the instructions of the dentist with regard to frequency, duration and type of treatment are easily forgotten or that movement sequences that are not optimal over time become established , as a result of which oral hygiene is not optimally guaranteed or damage to the oral cavity, in particular solid and / or soft oral components, such as the teeth, the jaw and / or the gums, is caused.
The pamphlet 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, the second position sensor being 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 compares the two sensor outputs to monitor the position of the toothbrush with respect to the teeth over a period of time.
This system is disadvantageous because complex sensors have to be attached to a face in a defined manner, which makes the system expensive and complex, which makes it difficult to achieve high market acceptance.
Yu-Chen Chang et. al. describe in the article "Playful Toothbrush: UbiComp Technology for Teaching Tooth Brushing to Kindergarten Children" a system in which the movement of the toothbrush is optically recorded. This system is disadvantageous because the recorded movements take place in an undefined manner in space, as a result of which a movement of the head causes a falsification of the recorded data. Furthermore, complex modifications of the toothbrush are required, as a result of which the system is complex and expensive and thus likewise appears inaccessible to a mass market. In addition, the system must be installed permanently so that a camera can recognize the modified toothbrush in a defined manner.
Furthermore, both systems are based on specified data sets, which means that it is not possible to improve knowledge of tooth brushing movements.

Further documents pertaining to this technical area are WO2010 / 129755A1 , WO2010 / 059484A1 , WO2014 / 036423A1 and DE10045067A1 . The pamphlet WO2010 / 129755A1 discloses an oral care system comprising a toothbrush and a display, the display in communication with the toothbrush. The WO2010 / 059484A1 discloses a personal care device, the personal care device comprising a toothbrush and a positioning member. The pamphlet WO2014 / 036423A1 discloses a toothbrush training system for children. The pamphlet DE10045067A1 discloses a system for assisting a user in carrying out care measures in the dental field.

It is therefore the object of the present invention to provide a method and a system which enables the health of the mouth to be optimized, in particular the health of the mouth, the health of the teeth, the health of the jaw and / or the health of the gums. The invention is also preferably intended to be a control, in particular for continuous or permanent control, or monitoring, in particular for continuous or permanent Monitoring that enable oral hygiene. The invention should further preferably be as simple, inexpensive as possible and usable by as many people as possible.

This object is achieved by the subjects of claims 1 to 14.

A method disclosed herein preferably comprises the steps: Method for determining a movement, in particular a movement sequence or movement pattern, of a dental treatment agent, in particular a toothbrush, at least comprising the steps:
Providing at least part of the data acquired by means of an optical detection device, in particular image data, with regard to a movement parameter of a dental treatment agent moved in at least one X / Y plane with respect to a reference system moving with the head of a person being treated to a processor device for determining the movement, wherein the data represent characteristic body points on the surface of the hand, body lines of the surface of the hand and / or body surfaces of the hand with which the dental treatment agent is guided, definition of a further three-dimensional reference system by the processor device, which moves with the dental treatment agent when the dental treatment agent moves in space, wherein the further reference system is formed by the characteristic body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided, and determining the movement g, in particular by evaluating the relative movements of the recorded or determined reference systems.

Furthermore, a method for determining at least one cleaning feature resulting from a dental treatment, in particular tooth cleaning, is disclosed, which preferably comprises at least the following steps: Providing at least part of the data acquired by means of an optical detection device, in particular image data, with regard to a movement parameter of at least one an X / Y plane moving dental treatment agent in relation to a first reference system moving with the head of a person being treated to a processor device for determining the movement parameter, the data representing features of the hand with which the dental treatment agent is guided, defining a second or further three-dimensional reference system by the processor device, which moves with a movement of the dental treatment agent in space with the dental treatment agent, wherein the further reference system by the features of the hand with which the Dental treatment agent is guided, is formed, determining the cleaning feature at least by determining a relative movement between the first reference system and the second reference system, the cleaning feature preferably at least the number of movements of the toothbrush head over at least one tooth surface portion of at least one tooth and / or at least the direction of movement and / or the speed of movement of the toothbrush head when driving over the at least one tooth surface portion. The cleaning feature preferably represents at least indirectly the number of movements of the toothbrush head over at least one tooth surface portion of at least one tooth and / or at least indirectly the direction of movement and / or movement speed of the toothbrush head when passing over the at least one tooth surface portion. The cleaning feature is preferably recorded for several surface portions of a tooth, in particular for two surface portions or for three surface portions, with one surface portion the outer surface of the tooth, one surface portion the inner surface (direction of the opposite row of teeth or direction of the palate or direction of the tongue) of the tooth and one surface portion is the surface portion of the tooth connecting the inner surface portion and the outer surface portion (in particular the horizontal surface portion). Preferably, the cleaning feature is processed via an output device and output to a user and / or to a server device for further use, in particular analysis. Furthermore, at least one cleaning feature or several cleaning features for several teeth is preferably recorded or determined.

Before determining the movement, the positions of at least one finger, in particular several fingers, of the hand carrying the dental treatment agent are preferably determined in various relative positions of the dental treatment agent in relation to the head of the person to determine the respective treated parts of the teeth. The determination of the movement is preferably based on the relative movement of the reference systems and / or the postures and / or position of at least one finger, in particular at least or exactly 2 or at least or exactly 3 or 4 fingers.

This method is advantageous because it enables a very precise determination of the treated tooth parts. According to a preferred embodiment of the present disclosure, end positions of the hand guiding the dental treatment agent with respect to the head of the person are determined by evaluating the relative positions of the reference system moving with the head of a treated person with respect to the further reference system.

According to a preferred embodiment of the present disclosure, the end position is determined by means of data that are recorded by the optical detection device during the output of dental treatment instructions for treating the rear or rearmost teeth.

An end position here preferably denotes an alignment or position of the hand guiding the dental treatment agent with respect to the head or the reference system of the head, in which the movement of the dental treatment agent is limited in one or at least one direction with respect to the head. In particular, the limit is limited by the accessibility of the teeth or the presence or absence of teeth.

According to a preferred embodiment of the present disclosure, the body points, body lines and / or body surfaces are each identified by characteristic color distributions or gray level distributions. According to a preferred embodiment of the present disclosure, the position of the at least one finger at least partially by the data that describe the characteristic body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided, and / or by further data acquired by means of the optical detection device, in particular surface data of the at least one finger, is described.

According to a preferred embodiment of the present disclosure, the data describing a position of the fingers are compared with data stored in a memory for determining the orientation of the cleaning surface of the dental treatment agent.

According to a preferred embodiment of the present disclosure, the color distributions or gray level distributions are described by the data acquired by the optical detection device.

According to a preferred embodiment of the present disclosure, the end positions determine how long the dental treatment agent is.

According to a preferred embodiment of the present disclosure, the end positions determine how the relative position of the hand in relation to the head is when treating a specific tooth or several specific teeth, in particular the left and / or right rear tooth of the upper and / or lower row of teeth of the person being treated.

According to a preferred embodiment of the present disclosure, the data additionally represent characteristic anthropometric body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided.

The dental treatment agent is preferably moved at least temporarily in three dimensions, i.e. in the X, Y and Z directions, and the movement parameters are particularly preferably recorded as a function of direction and / or orientation. The X-Y plane is a plane that extends in the X direction and in the Y direction; other possible planes extend analogously, the X / Y / Z axes each being at right angles to one another.

Alternatively or additionally, another method disclosed here can relate to a method for at least partial determination of a particularly personal movement pattern or tooth cleaning feature of a dental treatment agent, in particular a toothbrush, resulting from a dental treatment, in particular tooth cleaning, the method preferably at least the step the optical acquisition of data, in particular by means of at least one camera, such as a CMOS camera, a CCD camera, an NMOS camera, a LiveMOS camera or a time-of-flight camera, for at least one movement parameter, in particular the Direction or rotation of movement, the acceleration, the distance covered and / or the speed, of a dental treatment agent and the step of the pictorial separation of the dental treatment agent, in particular the hand guiding the dental treatment agent, from at least one further hand by the optical detection device captured image component by means of a data processing device and the steps of determining at least one movement pattern corresponding to the movement parameter.

This method is advantageous because the data acquisition takes place at any location or at any time, meaning that the dental treatment can also be monitored and objectively assessed at home with private individuals at any time, regardless of the time. The recorded data are to be processed, in particular in real time, or are preferably processed in real time in such a way that, for example, the movement pattern or tooth cleaning feature can be analyzed by a treating dentist or the private person or the patient himself, whereby individual adjustments to the movement sequences occurring during the dental treatment can be done. The data collected in this way can not only be used individually for the acute optimization of movement patterns, but can also be used on a larger scale, e.g. by health insurance companies and / or research institutions. Transferring the data to a central evaluation station opens up the possibility, for example, of processing the generated raw data in a centralized manner with adequate computing power, comparing it with optimal movement schemes and sending it to the local end devices Allows data for large-scale clinical studies for research purposes or for commercial statistical use (e.g. for health insurance companies).

According to a further preferred embodiment of the present disclosure, a method for determining at least one movement characteristic is provided. The method preferably comprises at least the step of executing the method multiple times, in particular on different terminals to record movement patterns or tooth cleaning features of different people and preferably their statistical evaluation, it being additionally or alternatively also conceivable that a movement characteristic can be generated or determined for a person and the step of determining at least one matching property, in particular a movement parameter and / or the duration of the dental treatment, 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 people, which are representative of the dental treatment behavior of the respective person. However, it is additionally or alternatively conceivable that the movement patterns or movement characteristics of individual persons are to be or are grouped on the basis of matching features. It is also conceivable that a step of comparing the determined movement patterns or the recorded data with characteristic standard data is carried out, this being done in a Database are provided, the database being at least partially held locally on a mobile terminal and / or at least partially held on a server.

Furthermore, it is conceivable that, while the device is being used, a step of outputting, in particular optical, haptic and / or acoustic output, is determined for information about corrective, standard and / or ideal movements, in particular as a function of the current, ie for example in real time Movement pattern or depending on an already determined movement pattern or a movement characteristic is provided. Optical output here preferably means the visual representation of the correction, standard and / or ideal movements on a screen or a projection surface, it being conceivable that visual output can be understood as the representation of individual images and / or an animated film representation. Acoustic output here preferably describes the output of certain tones and / or the output of voice instructions. Haptic output can be understood, for example, as a defined output of vibrations. In particular with regard to the optical output, the correction, standard and / or ideal movements can preferably be output alongside, over and / or in comparison with the movement pattern actually recorded or with the movement patterns actually recorded. Corrective movements can, for example, show a proposal for a movement change or adaptation compared to the recorded movement pattern. Standard movements can be, for example, the average movements of a defined group of people or those movements known to be optimal from clinical studies. Ideal movements can, for example, be movements that are extremely gentle, cleaning and / or time-efficient, etc.

According to a further preferred embodiment of the present disclosure, a method for monitoring dental treatment movements and for outputting correction parameters for adapting the dental treatment movements is provided. The method comprises the method for at least partially determining a movement pattern of a dental treatment agent, in particular a toothbrush, resulting from a dental treatment, in particular tooth cleaning, with the following steps: moving the dental treatment agent for treating surface portions of the teeth at least in an X / Y plane, whereby, by means of a preferably optical detection device, in particular a sensor device, data relating to at least one movement parameter of the dental treatment agent, in particular the direction or rotation of movement, the acceleration, the path and / or the speed, are recorded, and the recorded data are made available to a processor device or to a 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 r adaptation of the movement of the dental treatment agent as a function of the adjusted movement patterns, and output of information by means of an output device as a function of the derived or determined correction parameters. This method is advantageous because a person performing a dental treatment, in particular tooth cleaning, should preferably immediately provide feedback or correction information on the movement sequence, or correction information should be able to be output to a person performing the dental treatment, in particular in real time, to correct or adapt the movement sequence they guide the dental treatment agent with a movement that is assessed as unsuitable, in particular in terms of software, or with a movement pattern that is assessed as unsuitable.

This embodiment is advantageous because in this way, for example, children can be taught, in particular monitored, the suitable movement patterns identified with regard to the movement sequences during dental treatment, in particular tooth cleaning. An optical output device, such as the display of a mobile phone, a watch, a bracelet, a game console or a tablet PC, can output an image or a video that visually displays or outputs the preferably optimal movement patterns to the child, in particular the movement patterns stored in data form in a local storage device and / or on a server and / or in a local or internet-based database. The movements of the child can be detected and thus monitored by means of an optical detection device or optical detection device, in particular a camera, which is preferably coupled to the output device for signaling purposes and is preferably accommodated in the same housing as the output device. Should the child deviate from the displayed movements or movement patterns, then a signal can preferably be output that makes the deviation clear to the child. The detection device and the output device, in particular for the optical and / or haptic and / or acoustic output of signals and / or instructions, are preferably part of a single device, in particular a mobile device. The device is preferably designed as a portable processor device, in particular as a mobile phone or tablet PC.

According to a further preferred embodiment of the present disclosure, the teeth to be treated are preferably registered, the registration comprising optical detection by means of the detection device or manual detection by means of an input mask, the number and / or the position and / or the orientation and / or defects of at least individual teeth are detected, and the derivation or determination of the correction parameters preferably takes place taking into account the registered teeth. The input mask can be visualized here, for example, via a display device of a terminal, in particular of the terminal that also has the detection device. A person can preferably use an input device, which can preferably be part of the display device, to indicate the number of teeth and / or which position and / or which orientation and / or which defects individual, several or all teeth have.

The derivation or determination of the correction parameters is preferably carried out taking into account the registered teeth. The registration of the teeth can be carried out, for example, by means of the, in particular optical, detection device, in particular a camera, ie at least one image of the dentition is preferably made, with the image being evaluated in terms of software and, for example, the number, orientation and / or position and / or defects of the teeth are detected. It is therefore preferably also possible to detect voids in the dentition.

Additionally or alternatively, it is conceivable that the number, alignment and / or position and / or defects of the teeth can be recorded manually, in particular via an input mask. Additionally or alternatively, the angular feature and / or seals and / or crowns and / or inlays or seals, one or more teeth can be detected, in particular by means of the optical detection device. The position of the teeth preferably describes the position of the teeth or which tooth is the respective tooth (e.g. incisors, canines, premolars, molars). It is also conceivable that properties of the individual teeth or relationships between the individual teeth can be recorded.

Defects are preferably understood to mean receding gums and / or discoloration and / or tartar and / or cracks and / or breaks and / or holes and / or tartar etc.

Furthermore, it is preferably conceivable that a calibration step is carried out once or repeatedly or several times. Calibration is preferably understood to mean the determination of the specific or personal properties of the body, in particular the size or the distance of the head to the detection device or a reference point or the size or the distance of a component of the head to the detection device or to a reference point. Particularly preferably, several body-fixed points or surface points are recorded by the optical recording device during the calibration, with one or more front teeth and / or the contact area or border area extending in the longitudinal direction of the teeth is captured between the front teeth. These are preferably the central incisors, in particular of the upper jaw, it being conceivable that the central incisors of the lower jaw are also or alternatively detected. The detection of the position of the incisors of the upper jaw and / or the border area between these incisors is often possible when the upper lip is raised, but this cannot always be ensured when brushing your teeth. Nevertheless, the detection of the position of the incisors and / or the border area between the incisors in relation to other anthropometric points on the face surface, in particular the nose, cheeks and forehead region, wrinkles, especially forehead wrinkles, or the pupils, offers a possibility of an extremely precise coordinate system or To define a reference system at the head of a person. For clinical studies, this should or can preferably be done with established dental coordinate definitions such as the Frankfurt horizontal; the Camper's plane or the occlusal plane can be related. Furthermore, a coordinate system defined in this way can additionally be coupled to exactly or at least one, two, three further body points or to several body points, in particular the nose, the chin, the forehead, one ear or two ears, etc. This is advantageous because, on the one hand, the coordinate system once defined can always be recorded regardless of the position of the lips, so that the position of the teeth is always known, and on the other hand, the shape of the body part, for example the nose, is irrelevant. Any soft deformation that may occur when opening the mouth should or can be compensated for by appropriate correction calculations in order to further increase the accuracy of the method.

According to a further preferred embodiment of the present disclosure, the optical detection of an object takes place, wherein at least the extent of the object in one dimension, ie in length and / or in width and / or in height and / or in circumference, is known, and the extent of the object in the known dimension or in the known dimensions is preferably used to determine dimensional parameters, for example the length of the path covered by the dental treatment agent during a dental treatment and / or the dimensions of the teeth, in particular the visible parts of the teeth, etc. to capture. The object here is preferably the person who uses the dental treatment agent, the known dimension of the person preferably being their size. Additionally or alternatively, it is conceivable that the object is the dental treatment agent, in particular the toothbrush, the known dimension of the toothbrush preferably being the length and / or the width and / or the height and / or the circumference. Additionally or alternatively, it is conceivable that the object is an element whose dimensions are essentially identical all over the world, such as a CD, DVD or credit card. Data on the properties of the dental treatment agent can preferably be recorded by means of an identification means (see later explanations).

It is also conceivable that a sensor device, in particular a pressure sensor, is provided in or on the dental treatment agent or for bringing it into contact with the dental treatment agent for detecting the contact pressure exerted on the mouth or the teeth and / or the gums by means of the dental treatment agent. Alternatively or additionally, it is conceivable that the pressure detection is effected by means of the optical detection device. A bending of the dental treatment agent is detected and is set as a function of known strength values of the dental treatment agent. The strength values can be stored in a database or can be stored. It is also conceivable that the dental treatment agent or the packaging of the same (for example barcode or QR code) is optically detected and identified. The identification of the dental treatment agent enables the information pertaining to the specific dental treatment agent with regard to its properties, in particular the strength values, to be automatically stored or retrieved for a processor device. It is also conceivable that the information relating to the properties of a dental treatment agent can also be entered manually in a database, in particular of a mobile device, are made available or can be stored or registered. The information relating to the properties can preferably be stored locally in data form on the mobile terminal device or on a server. According to a further preferred embodiment of the present disclosure, a determination of the pressure exerted on the teeth or the gums of the person who is cleaning the teeth during dental treatment, in particular tooth cleaning, by means of a dental treatment agent, in particular a toothbrush, is carried out, with optical detection of the dental treatment agent , in particular directly or indirectly, by means of the optical detection device, image information being captured or image data generated by the detection device and an, in particular elastic, deformation, in particular bending, of the dental treatment agent being determined by means of the image information or image data, the pressure at least is determined as a function of the deformation of the dental treatment agent and preferably further data which include properties of the dental treatment agent. It is also conceivable that a signal or information can be output via an output device as a function of the determined pressure. The signal or the information preferably represents a recommendation for the user of the dental treatment agent, in particular for the person undergoing the dental treatment. The detection of the pressure or the output of the signals and / or information to be output as a function of the detected pressure is preferably carried out in real time. It is particularly preferable for the signals and / or information to be output via an optical output device. The optical output device is preferably part of a device, in particular of the terminal, to which the optical detection device also belongs. The signals and / or information on printing are particularly preferably communicated to the same person at the same time and / or via the same output device, with which correction parameters for adapting the dental treatment movements to a person, in particular the person who is undergoing and / or performing a dental treatment, are communicated . The data on the properties of the dental treatment agent can be material properties and / or strength values and / or dimensions and / or flexural strengths and / or make and / or age and / or frequency of use, in particular duration of use, etc.

According to a further preferred embodiment of the present disclosure, at least three preferably predetermined points, in particular surface points, of a body, in particular a head, of a person, in particular with regard to which the movement patterns are recorded, can be detected by means of the optical detection device, preferably at least two points are connectable with a line or are virtually connectable or are intended to be connectable and at least one third point does not lie on this line, the reference system being defined by the at least three recorded points and a movement of the dental treatment agent being recorded with respect to this reference system or where at least three preferably predetermined points of the dental treatment agent, in particular a toothbrush, are detected by means of the optical detection device, at least two points being connectable with a line and at least one third point not on this L The reference system is defined by the at least three recorded points and a movement of the person, in particular the head, relative to this reference system is recorded. According to a further preferred embodiment of the present disclosure, depending on a movement of the body, in particular the head, of the person, with respect to which the movement patterns are detected, different points on the body, in particular the head, of the person to define the Reference system recorded. This embodiment is advantageous because the person's head does not have to be completely immobile when the method is being carried out, but rather can preferably move, and precise detection of the movement patterns is still possible. If, for example, as a result of the person turning his head, a surface point recorded for defining the reference system cannot be further recorded, it is preferred before the surface point can no longer be detected, another point or surface point that is fixed to the body or fixed to the head is recorded, by means of which the reference system is further maintained. In addition to characteristic shapes such as the tip of the nose, skin discoloration, in particular pigment disorders, pigment nevus, scars, body jewelry, in particular tattoos, the eye sockets, the incisors, in particular of the upper jaw, and points on the body, in particular devices attached to the head, such as clothing, hats, glasses.

According to a further preferred embodiment of the present disclosure, the processor device is a mobile terminal device (e.g. mobile phone or tablet PC) that sends the captured data over the Internet to a server device for further processing and / or over the Internet data for output by means of an output device of the device receives, wherein the data includes information relating to movement parameters of the dental treatment agent. Furthermore, the aforementioned object is achieved by a system for at least partially or at least partially indirect determination of a personal and preferably dynamic movement pattern of a dental treatment agent, in particular a toothbrush, that occurs during a dental treatment, in particular a tooth cleaning. A dynamic movement pattern is preferably to be understood here as a movement pattern that is at least partially defined by speed information and / or acceleration information of the dental treatment agent in relation to a treatment area. The system preferably comprises at least one detection device, in particular a sensor device or an optical acquisition device, for acquiring data on at least one movement parameter, in particular the direction of movement, the acceleration, the distance covered and / or the speed of the dental treatment agent, and at least or precisely one data processing device to generate movement patterns based on the recorded data. It is conceivable here that the data processing device is preferably a device that can at least temporarily be connected to the Internet, in particular a computer, a digital camera, a game console, a tablet computer, a laptop, a wristwatch (e.g. smartwatch), a television set and / or a mobile phone . It is also conceivable that the data processing device generates the movement patterns partially or completely. The data processing device particularly preferably transmits the completely or partially generated movement patterns to a server device, which preferably receives personal movement patterns from dental treatment means from a large number of data processing devices. The data transmission can take place, for example, as a function of an energy, connection, time, data volume and / or dental treatment repeat criterion, the dental treatment repeat criterion preferably indicating a specific number of dental treatments. The connection criterion preferably indicates the type and / or quality of the Internet connection, e.g. B. whether it is a cellular tariff or a local network, such as. B. a WLAN is. The energy criterion preferably indicates a state of charge of a terminal, in particular a mobile terminal, which is supplied with energy, in particular electricity, by a rechargeable battery. This criterion-dependent transmission of the partially or completely generated movement patterns is advantageous because the calculation of the movement patterns can initially be carried out on the data processing device side, ie on the terminal side, and thus the amount of data transfer between the individual terminals and the server device can be kept relatively low. Furthermore, this is advantageous because the server device must have a significantly lower computing power if it already receives partially or completely processed movement patterns and can process them further. The server device then preferably does not first have to effect or calculate the complete generation of the movement patterns from the raw data. Alternatively, however, it is also conceivable that the data recorded by the detection device are used for Further processing can be forwarded to the server device. The forwarding can take place immediately after the entry or depending on certain criteria. The criteria can be, for. B. be an energy, connection, time, data volume and / or dental treatment retry criterion. In this case, the server device can preferably be viewed as a data processing device, ie a data processing device that effects processing of the recorded data is not absolutely necessary on the end user side or in the area of the detection device. Preferably, however, a processor device, in particular a mobile phone, is provided which at least causes the data to be forwarded to the server device. In a particularly preferred embodiment, the server device has access to clinically collected information about the dental health status, the number of dentist visits per year and / or the treatment history, the dental cleaning agents used, etc. of specific people and links this information with the recorded movement patterns of the respective device using person. The recorded movement parameters of a specific person are preferably by means of a personalization instance, such as. B. a name query, a password query, a telephone number, an email address or a pseudonym, can be assigned to this specific person. This embodiment is advantageous because the data generated by the server device consisting of the dental health status, the number of dentist visits per year and / or the treatment history and the recorded movement parameters or movement patterns can be used to carry out clear controls and monitoring and teachings for further improvement of dental treatment technology are draggable.

A dental treatment agent that can preferably be used or used in the system, in particular a toothbrush, oral irrigator, gas jet, in particular air jet, sandblaster, drill, ultrasonic cleaner, etc., preferably comprises at least one guide support structure, with a treatment device on the guide support structure for at least indirect contact with a tooth surface and a contact area for holding the dental treatment agent is arranged or formed, with a detection device, in particular a position, speed, acceleration and / or rotation sensor, for detecting movement parameters at least during use of the dental treatment agent being physically connected to the guide support structure. It is conceivable here that the detection device can be or is coupled to any dental treatment agent. It is also conceivable, in particular in the case of electric toothbrushes, for the detection device to be permanently or permanently connected to the electric toothbrush. According to a further preferred embodiment of the present disclosure, the dental treatment agent has a communication interface for transmitting the recorded data, in particular in raw or processed form, to a data processing device, the communication interface being particularly preferably designed such that the data can be transmitted wirelessly.

According to a further preferred embodiment of the present disclosure, the system has a processor device, in particular a mobile terminal such as a mobile phone, which preferably has at least one optical acquisition device, in particular a camera, for acquiring data on at least one movement parameter, in particular the direction of movement or rotation, the acceleration, the distance covered and / or the speed, of a dental treatment agent and a data processing device for, in particular, the pictorial separation of the dental treatment agent from at least one further image component captured by the optical acquisition device and for determining at least one movement pattern corresponding to the movement parameter.

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

In the case of a detection device, which is preferably designed as an optical detection device or optical detection device, it is conceivable that the dental treatment agent is provided with an optically characteristic shape that preferably corresponds to a coordinate system or takes over its functionality in order to additionally detect a specific movement parameter of the To enable dental treatment agent when using exactly or at least one camera. Additionally or alternatively, however, it is also conceivable that the dental treatment agent is equipped with one or more sensor devices and the data processing device uses the sensor data and the data of the optical detection device to determine the movement parameter.

Furthermore, it is also conceivable that the dental treatment agent is also equipped with one or more sensor devices if the processor device or the system has at least or exactly one, two or more cameras, in particular 3 cameras. In this case, the data processing device can use data from one or more or all cameras and / or sensors to determine the movement parameter.

According to a further preferred embodiment of the present disclosure, the optical detection device has at least one, in particular precisely or at least two, cameras for three-dimensional detection of the at least one movement parameter of a dental treatment agent, the processor device defining a three-dimensional coordinate system or reference system that changes when the Dental treatment agent moved along with the dental treatment agent in space. The coordinate 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 agent is guided. In addition, however, it can also be formed by surface points, lines and / or surfaces of the dental treatment agent. The second camera is preferably arranged in a fixed manner in relation to the first camera, so that the detection system can be calibrated once before use. It is also preferably conceivable that the at least two cameras can be moved relative to one another. The at least two cameras are preferably at least, exactly or at most 2, 3, 4, 5 or 6 cameras. According to a further preferred embodiment of the present disclosure, the optical detection device detects a portion of the head or at least three points on the surface of the head or at least three points fixed to the body which, when the person, in particular the head, move with the person, in particular with the head, and defines a three-dimensional coordinate system or reference system in the recorded portion of the head or by means of the points, a movement of the dental treatment agent being determined as a function of the defined coordinate system of the head or a movement of the recorded portion of the head as a function of the coordinate system of the dental treatment agent is determined. It is conceivable here that the coordinate system is assigned directly to the dental treatment agent, it being additionally or alternatively also conceivable that the coordinate system is at least partially and preferably completely by means of defined body surface parts, in particular two or more knuckles of the hand, which form the transition between the palm and the Fingers form, is defined.

This embodiment is advantageous because a movement of any dental treatment agent, in particular any commercially available toothbrush or electric toothbrush, can be detected optically, at least indirectly, at least indirectly via the detection of the hand movement, and the spread of optical Detection means, in particular handheld cameras, is very high, whereby the disclosure can be used for an extremely large number of people. Particularly preferably, the dental treatment agent can be identified and separated from the other image components by the data processing device in such a way that its movements, in particular with respect to or relative to a reference or coordinate system established on the head or in the area of the head of the person, can be recorded and particularly preferably evaluated . Furthermore, at least or exactly one part of a person's body is particularly preferably 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 agent relative to the body part can be determined or calculated. The body part is preferably a part of a head, such as forehead, eyebrows, eye socket, mouth, lips, ears, cheeks and / or chin, preferably one or more body-fixed, in particular skull-fixed, parts such as the forehead, the chin and / or the Nose. However, it is also conceivable that several body parts, such as the eyes, the mouth and / or the nose, are recorded. It is thus conceivable that one or more photos of the operator or the patient, in particular of the operator's head or face, are captured and stored. Individual body shapes, in particular facial constituent shapes or shapes of characteristic facial features, are preferably detectable or fixable manually or automatically or can be registered as reference points or reference areas against which one or more movement parameters of the dental treatment agent are recorded. For example, one or two eyes, the nose, the mouth, one or two ears and / or one or two lips can be used or registered as a reference point. Furthermore, the eyebrows or the eyes, in particular the pupils, of a person can additionally or alternatively be recorded. A line or axis connecting the eyes or pupils, in particular the center of the eyes or pupils, can then be defined or established. This line or axis can define a direction, in particular the X, Y or Z direction, of a coordinate system. Furthermore, a second line or axis can be defined or set in the extension direction of the nose, in particular the bridge of the nose, of the person, which preferably has a second direction deviating from the first direction, in particular the X, Y or Z direction Coordinate system defined. The first direction and the second direction are preferably oriented essentially or precisely at right angles to one another. A third direction preferably extends at right angles with respect to a plane spanned by the first and second directions. The detection of the movement of the dental treatment agent in relation to a coordinate system coupled with a movement of the head is extremely advantageous, since the person performing the dental treatment can carry out head and / or body movements without the detection of the movement patterns becoming imprecise or impossible.

The present disclosure also relates to the use of a position, speed and / or acceleration sensor or a video tracking system for determining a movement pattern of a dental treatment agent resulting during a dental treatment.

The present disclosure further relates to a method for at least partially determining a pressure that is produced during a dental treatment, in particular tooth cleaning, and is exerted on the teeth or gums of a person undergoing the dental treatment by means of a dental treatment agent. The method preferably comprises at least the steps:
Carrying out an at least indirect and preferably direct optical detection of at least part of the dental treatment agent during the dental treatment by means of an optical detection device or carrying out an optical detection of the dental treatment agent during the dental treatment by means of an optical detection device. It is preferably conceivable here that, in the case of an indirect detection of the dental treatment agent, a position and / or alignment and / or posture of the hand by means of the Dental treatment agent is performed, is recorded. Direct detection of the dental treatment agent preferably describes the actual optical detection of the dental treatment agent. Generation of image data representing the optical detection, the image data preferably having or representing different degrees of deformation of the dental treatment agent. A deflection and / or torsion of a toothbrush shaft and / or a toothbrush head is preferably detected as the deformation. Additionally or alternatively, however, it is also conceivable that a deformation of the bristles of a toothbrush is detected or determined. Evaluation of the image data to determine the respective degree of deformation of the dental treatment agent. Determining the pressure, the pressure being determined at least as a function of the deformation of the dental treatment agent and as a function of further dental treatment agent data, the dental treatment agent data including data on properties of the dental treatment agent.

It is also conceivable that a signal or information can be output via an output device as a function of the determined pressure. The signal or the information preferably represents a recommendation for the user of the dental treatment agent, in particular for the person undergoing the dental treatment. The detection of the pressure or the output of the signals and / or information to be output as a function of the detected pressure is preferably carried out in real time. It is particularly preferable for the signals and / or information to be output via an optical output device. The optical output device is preferably part of a device to which the optical detection device also belongs. The signals and / or information on printing are particularly preferably communicated to the same person at the same time and / or via the same output device, with which correction parameters for adapting the dental treatment movements to a person, in particular the person who is undergoing and / or performing a dental treatment, are communicated . The data on the properties of the dental treatment agent can be material properties and / or strength values and / or dimensions and / or flexural strengths and / or make and / or age and / or frequency of use, in particular duration of use, etc.

According to a further preferred embodiment of the present disclosure, the optical detection of an object takes place, wherein at least the extent of the object in one dimension, ie in length and / or in width and / or in height and / or in circumference, is known, and the extent of the object in the known dimension or in the known dimensions is used to determine dimensional parameters to determine geometric relationships, such as the length of the path covered by the dental treatment agent during a dental treatment and / or the dimensions of the teeth, in particular the visible parts of the teeth and / or the dimensions of the dental treatment agent and / or the distance between the teeth and / or the dental treatment agent and the detection device etc. The object here is preferably the person who uses the dental treatment agent, the known dimension of the person preferably being their size. Additionally or alternatively, it is conceivable that the object is the dental treatment agent, in particular the toothbrush, the known dimension of the toothbrush preferably being the length and / or the width and / or the height and / or the circumference.

Furthermore, the present disclosure can relate to a system or method that has at least one optical acquisition device, in particular at least one camera, for acquiring data on at least one movement parameter, in particular the direction of movement, the acceleration, the distance covered and / or the speed Dental treatment agent, and a data processing device for separating an image component representing the dental treatment agent from at least one further image component captured by the optical detection device and for determining at least one movement pattern corresponding to the movement parameter on the basis of the separated image components, wherein the optical detection device preferably has at least one camera, in particular precisely or at least two cameras, for preferably three-dimensional detection of the at least one movement parameter of a dental treatment agent, the processor device preferably defining a three-dimensional coordinate system which, when the dental treatment agent moves in space with that of the dental treatment agent guiding hand moves along, the optical detection device preferably detects a portion of the head of a person and defines a three-dimensional coordinate system in the detected portion of the head, wherein a movement of the dental treatment agent is preferably determined as a function of the defined coordinate system of the head or where a movement of the detected portion of the head is determined as a function of the coordinate system of the dental treatment agent, the processor device preferably being a mobile phone or a tablet PC d preferably sends the recorded data over the Internet to a server device for further processing and / or receives data over the Internet for output by means of an output device of the mobile phone or the tablet PC, the data preferably including information relating to movement parameters of the dental treatment agent and / or the pressure which the dental treatment agent is pressed against the teeth and / or the gums.

A method disclosed here also relates to a method for determining a movement, in particular a sequence of movements or movement patterns, of a dental treatment agent, in particular a toothbrush, that occurs during a dental treatment, in particular tooth cleaning, at least comprising the steps of: providing at least part of the movement by means of an optical detection device Acquired data, in particular image data, relating to a movement parameter of a dental treatment agent moved in at least one X / Y plane in relation to a reference system moving with the head of a person being treated to a processor device for determining the movement, the data such as characteristic body points on the surface of the hand, body lines the surface of the hand and / or body surfaces of the hand, in particular the fingers with which the dental treatment agent is guided. The data preferably additionally or alternatively represent specific positions of several fingers of the hand guiding the dental treatment agent to one another. Determination of positions of at least one finger, in particular several fingers, of the hand carrying the dental treatment agent in different relative positions of the dental treatment agent with respect to the head of the person to determine the respective treated parts of the teeth, determination of the movement based on the detected positions of the fingers and / or based on the Relative movement of the reference system to the positions of the fingers.

This method is advantageous because it has been recognized that the fingers, when treating a specific tooth, assume a specific position in a specific area of the mouth, which can be detected by the optical detection device. Most people always use the same positions when treating the respective teeth, whereby the respective positions of the fingers provide direct information about the position of the dental treatment agent.

According to a preferred embodiment of the present disclosure, a further three-dimensional reference system is defined by the processor device, which moves with the dental treatment agent when the dental treatment agent moves in space, the further reference system being defined by the characteristic body points of the finger (s), body lines of the finger (s) and / or body surfaces of the finger or fingers with which the dental treatment agent is guided is formed.

A database is preferably provided which has dental treatment agent data. It is conceivable here for the database to be held locally on a terminal and / or on a server. An identification means, in particular a software-based identification means, is preferably provided. The means of identification captures, for example, the dental treatment agent or information representing the dental treatment agent, such as a QR code. The optically recorded dental treatment agent is preferably represented by image information or image data, which is preferably compared with image information or image data stored in the database for a large number of dental treatment agents. Data or information on the properties of the individual dental treatment agents are preferably stored in the database. If the data or information stored in the database match the captured image data or image information, the data or information stored in the database with respect to the specific or identified dental treatment agent is preferably selected and used to determine the pressure with the data or information to be assigned to a dental treatment agent, which is held in a database, is also possible via a link, as is possible, for example, by reading a code, in particular an optical code such as a barcode or QR code. Furthermore, it is additionally or alternatively conceivable that a mask is provided for the manual input of the dental treatment agent data or properties and that the data or information entered manually via the mask are used to determine the pressure. Additionally or alternatively, it is conceivable that the data or information relating to a dental treatment agent is transferred to the database or a link to the database is created using a radio device, such as near-field communication (NFC) or Bluetooth or the data for determining the pressure are stored.

The invention further relates to a computer program product according to claim 14
A method, a system, a computer program product and a device are also disclosed here which enable a determination of a state of health or a change in a state of health of a person in an improved manner. Furthermore, these should preferably be as simple, inexpensive as possible and usable by as many people as possible.
A method for determining a state of health or a change in a state of health of a person is disclosed therein, wherein the state of health or the change in state of health with regard to a suffering of the person, in particular a motor and / or neuronal ailment, in particular with regard to a motor disease or a the motor function of the person acting disease, in particular e.g. gout or rheumatism or multiple sclerosis, and / or motor disability or limitation or the motor function of the person limiting disability and / or a neuronal disease, in particular e.g. dementia or Parkinson's, or a neuronal damage or neuronal Restriction is determined.

The condition is particularly preferably different from a condition directly related to tooth preservation and / or oral hygiene, such as periodontitis and / or caries and / or gingivitis.

The disclosed health status determination method or health status change determination method preferably comprises at least the following steps: comparing movement data of a dental treatment agent, in particular a hand of the person guiding a dental treatment device, in particular a toothbrush, with reference movement data to determine deviations between the movement data recorded and the reference movement data and Determining the state of health or the change in the state of health by evaluating the deviations.

This method is advantageous because, for the first time, the extremely complex movements when brushing teeth are used as an assessment criterion for assessing a state of health or a change in a state of health. Brushing your teeth is a procedure that is carried out several times a day by a large number of people for many years. The people learn movement patterns that are very stable and change only little over time. However, if a person suffers from a disease, such as a motor disease or a disease that affects the motor skills of the person, or a neuronal disease, the movements that occur when brushing teeth change with the disease. Many movements initially become slower and / or less precise.

The present method thus offers a possibility for the first time to quantify or objectify these changes. It is also grateful that medication or other treatment changes the state of health of the person, which can be deduced from the movements that occur when brushing teeth.

It is also conceivable that the people based on the recorded and evaluated movements can be given feedback on their state of health or the change in their state of health, in particular a medication and / or treatment proposal can be output, whereby the people independently and methodically support their medication and / or Can customize treatment.

According to a preferred embodiment of the present disclosure, the reference movement data are movement data provided in a standardized manner, or the movement data are movement data that were recorded by the detection device in at least one dental treatment method previously carried out by the person.

According to a further preferred embodiment of the present disclosure, the movement data are used to determine, at least indirectly, movement parameters such as location data and / or speed data and / or acceleration data and / or direction data and / or inclination data and / or rotation data of the movement of the dental treatment agent, in particular in relation to a reference system moving with the head of the person and / or by means of the movement data, movement parameters such as location data and / or speed data and / or acceleration data and / or direction data and / or inclination data and / or rotation data, the movement of the hand, are determined at least indirectly , in particular in relation to a reference system moving with the person's head. The movement data are preferably recorded, for example, directly by sensors in or on the dental treatment agent or in the area of the dental treatment agent.

According to a further preferred embodiment of the present disclosure, the evaluation includes, for example, a determination of maximum deviations and / or average deviations and / or local deviations and / or matches of one or more, in particular combined, or all movement parameters; in particular, the evaluation includes a determination of how or to what extent individual or several movement parameters deviate quantitatively from reference movement parameters.

According to a further preferred embodiment of the present disclosure, the evaluation is dependent on or including concretization data such as the age of the person and / or the illness of the person and / or the stage of the illness and / or the previous duration of the illness and / or the gender the person and / or the type of dental treatment agent (manual toothbrush, electric toothbrush, ultrasonic toothbrush) causing the medication, in particular which medication the person takes when and / or in what quantity and / or when the last medication was taken.

According to a further preferred embodiment of the present disclosure, the evaluation is performed as a function of or inclusion of further health data, in particular the current or average blood pressure of the person and / or the current or average pulse of the person and / or the current or average oxygen saturation in the blood of the person and / or the current or average body temperature, in particular body core temperature and / or body surface temperature of the person, which are detected by means of at least one further detection device.

According to a further preferred embodiment of the present disclosure, the detection device is formed by at least one sensor, in particular at least one position sensor and / or at least one acceleration sensor and / or at least one speed sensor and / or at least one inclination sensor, etc., which is arranged in or on the dental treatment agent or which is arranged in the area of the person's hand, in particular in the form of a smart watch or a sensor bracelet, or which is coupled to the dental treatment agent.

According to a further preferred embodiment of the present disclosure, the detection device is an optical detection device, in particular at least one camera, the disclosed method preferably further comprising the steps:
Providing at least part of the movement data recorded by means of the optical detection device with regard to a movement of a dental treatment agent moved in at least one X / Y plane relative to a first reference system moving with the head of a person being treated to a processor device, definition of a second or further three-dimensional reference system by the processor device, which moves with the dental treatment agent when the dental treatment agent moves in space, the further reference system being formed by optically detectable features of the hand with which the dental treatment agent is guided.

According to a further preferred embodiment of the present disclosure, the movement data represent characteristic anthropometric body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided.

According to a further preferred embodiment of the present invention, end positions of the hand guiding the dental treatment agent with respect to the head of the person are determined by evaluating the relative positions of the reference system moving with the head of a treated person with respect to the further reference system.

According to a further preferred embodiment of the present invention, the disclosed method comprises the step of determining positions of at least one finger, in particular several fingers, of the hand carrying the dental treatment agent in different relative positions of the dental treatment agent with respect to the head of the person to determine the respective treated parts of the teeth.

According to a further preferred embodiment of the present invention, the movement data represent characteristic body points on the surface of the hand, body lines on the surface of the hand and / or body surfaces of the hand with which the dental treatment agent is guided, the body points, body lines and / or body surfaces each being identified by characteristic color distributions or gray scale distributions, wherein the color distributions or gray level distributions are preferably described by the data acquired by the optical detection device.

Disclosed herein are a method and a system which enable an improvement in oral health, in particular oral hygiene, dental health, jaw health and / or gum health.

The method disclosed herein relates to a method for determining a movement pattern or movement pattern of a dental treatment agent, in particular a toothbrush, resulting from a dental treatment, in particular tooth cleaning, at least comprising the steps: moving the dental treatment agent to treat surface portions of the teeth at least in an X- / Y-plane, with at least one optical detection device being used to record data relating to at least one movement parameter of the dental treatment agent in relation to a reference system moving with the head of the person being treated, the data being characteristic points on the surface of the dental treatment agent and / or lines on the surface represent the dental treatment agent and / or surface portions of the dental treatment agent,
Providing the recorded data to a processor device for determining the movement pattern, the processor device defining a further three-dimensional reference system which, when the dental treatment agent moves, moves at least temporarily in space with the dental treatment agent, the further reference system consisting of the characteristic points on the surface of the dental treatment agent and / or the lines on the surface of the dental treatment agent and / or the surface portions of the dental treatment agent is formed and determination of the movement pattern or the course of movement, with at least one relative movement being determined between the reference system moving with the head of the treated person and the further reference system.
According to a further preferred embodiment of the present disclosure, the characteristic points and / or lines and / or areas are formed by at least portions of the external shape of the dental treatment agent and / or characteristic points and / or lines and / or areas are formed by different light and dark and / or or differently colored or marked portions of the dental treatment agent are formed. According to a further preferred embodiment of the present disclosure, the processor device accesses an image data library that contains more than 50% of the image data on the dental treatment agent, in particular more than 60% or more than 70% or more than 80% or more than 90% % or up to 90% or up to 100% of all possible alignments of the dental treatment agent with respect to the optical detection device. The image data library is preferably used to determine a movement and / or an orientation of the dental treatment agent. The determination of the movement and / or the alignment of the dental treatment agent is preferably carried out in relation to the reference system moving with the person's head. The image data library is particularly preferably stored on a storage means of the mobile terminal or on a server. It is also conceivable that the image data library is automatically downloaded from a server to the terminal as a result of an identification or registration of the dental treatment agent. According to a further preferred embodiment of the present disclosure, the processor device determines by evaluating the data acquired by the detection device,
which type of dental treatment agent is used, in particular whether the dental treatment agent is a manual toothbrush or an electric toothbrush and / or which model or design of the dental treatment agent is used and preferably processes identification data that preferably contains information about individual or multiple properties of the dental treatment agent, especially physical ones and / or mechanical properties.

According to a further preferred embodiment of the present disclosure, the determination of the movement pattern or the course of movement is carried out in a manner adapted to the evaluation brought about by the processor device.

According to a further preferred embodiment of the present disclosure, end positions of the dental treatment agent with respect to the head of the person are determined by evaluating the relative positions of the reference system moving with the head of a treated person with respect to the further reference system.

According to a further preferred embodiment of the present disclosure, the end position is determined by means of data that are recorded by the optical detection device during the output of dental treatment instructions for treating the rear or rearmost teeth.

According to a further preferred embodiment of the present disclosure, the end positions determine how long the dental treatment agent is and / or how the relative position of the dental treatment agent when treating the left and / or right rear tooth of the upper and / or lower row of teeth relative to the head of the treated person is.
According to a further preferred embodiment of the present disclosure, the data additionally represent characteristic anthropometric body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided, the body points, body lines and / or body surfaces in each case preferably by characteristic color distributions or Gray level distributions are identified, the color distributions or gray level distributions preferably being described by the data recorded by the optical detection device ..
According to a further preferred embodiment of the present disclosure, by determining a relative movement between the reference system moving with the head of the person being treated and the further reference system, the number of movements over the treatment area of the dental treatment agent over at least one tooth surface portion of at least one tooth and / or the direction of movement and / or the speed of movement and / or the path of the treatment area of the dental treatment agent when passing over the at least one tooth surface portion.
According to a further preferred embodiment of the present disclosure, several positions of at least one finger, in particular several fingers, of the hand carrying the dental treatment agent are determined in different relative positions of the dental treatment agent with respect to the head of the person to determine the respective treated portions of the teeth. The thumb is preferably also referred to as a finger here. The position of the at least one finger or the multiple fingers, in particular the 2, 3, 4 or 5 fingers, preferably to one another or to at least one other finger of the same hand and / or to the back of the hand and / or to the dental treatment agent is recorded.
According to a further preferred embodiment of the present disclosure, a reference object, in particular the interchangeable brush element or the interchangeable brush of the electric toothbrush, is detected by the optical detection device, with dimensional data, in particular dimensions, such as length and / or width and / or height and / or circumference, are stored for the reference object and a determination of the movement parameters is carried out based on the reference data, the determination preferably the determination of travel paths, in particular the length of the travel path and / or the shape of the travel path, of the dental treatment agent when brushing teeth, in particular when tooth contact, and / or accelerations or changes in acceleration and / or speeds or changes in speed of the dental treatment agent when brushing teeth.

According to a further preferred embodiment of the present disclosure, the dental treatment agent, in particular the electric toothbrush, has a communication device for preferably wireless data exchange with the processor device, in particular the mobile terminal, wherein operating states of the dental treatment agent can be specified via actuation and / or setting elements arranged on the dental treatment agent and / or are selectable and / or adjustable, and / or wherein operating status data can be transmitted to the processor device by means of the communication device and / or wherein identification data and / or design data for the dental treatment device can be transmitted to the processor device by means of the communication device, the data being stored on a memory element of the dental treatment agent are provided or are determined by the dental treatment agent or are made available by the dental treatment agent, the by the optical detection device recorded data for determining the further three-dimensional reference system are preferably processed or modified by means of the data transmitted by the communication device, based on the data transmitted by the communication device for the specific dental treatment agent model- and / or design-dependent characteristic features, in particular characteristic points and / or lines and / or surface portions of the dental treatment agent are made available and used to determine the three-dimensional reference system.

Additionally or alternatively, the movement pattern or the course of movement is determined from the data recorded by means of the optical detection device and from the operating status data and / or identification data and / or shape data transmitted to the processor device via the communication device of the dental treatment device.

The dental treatment agent is preferably moved at least temporarily in three dimensions, i.e. in the X, Y and Z directions, and the movement parameters are particularly preferably recorded as a function of direction and / or orientation. The X-Y plane is a plane that extends in the X direction and in the Y direction; other possible planes extend analogously, the X / Y / Z axes each being at right angles to one another.

According to a further preferred embodiment of the present disclosure, the dental treatment agent has at least one sensor device for detecting the speed and / or the acceleration and / or a rotation of the dental treatment agent and / or the pressure exerted by the dental treatment agent on the teeth or the gums of the person, wherein Sensor data are output by the sensor device as a function of the detected parameters, the position of the dental treatment agent being determined by the optical detection device and the movement pattern or the movement path being determined from the position of the dental treatment agent or from the positions of the dental treatment agent and the sensor data.

According to a further preferred embodiment of the present disclosure, the processor device accesses an image data library which includes image data on the dental treatment agent for more than 100 orientations of the dental treatment agent with respect to the optical detection device, the processor device using the data acquired by the optical detection device to determine the orientation of the dental treatment agent compared to the head of the person with the image data of the image data library. Furthermore, a method is disclosed which relates to a method for at least partially determining a movement pattern of a dental treatment agent for treating surface portions of the teeth, in particular a toothbrush, which occurs during a dental treatment, in particular a tooth cleaning. The disclosed method comprises at least the following steps: at least indirect determination of a movement of the dental treatment agent in at least one plane, using at least one sensor, in particular one Acceleration sensor and / or a speed sensor and / or a position sensor, a detection device, data or movement data relating to at least one movement parameter of the dental treatment agent are recorded, the detection device being designed in such a way that it can be moved relative to the dental treatment agent and in the area of the person's hand, in particular in the form of a smart watch or a sensor bracelet or a ring or a glove, can be coupled, in particular is coupled, and providing the recorded data for determining the movement pattern.

Further preferably comprising the steps of comparing the recorded movement with movements stored in a database, and / or deriving or determining correction parameters, in particular at least one direction of movement, to adapt the movement of the dental treatment agent as a function of the synchronized movements and / or the output information by means of an output device as a function of the derived or determined correction parameters. According to a further preferred embodiment of the present disclosure, the data or additional data additionally represent body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided, the data relating to the body points of the hand, body lines of the hand and / or body surfaces of the hand with which the dental treatment agent is guided are detected by means of an optical detection device. According to a further preferred embodiment of the present disclosure, end positions of the hand carrying the dental treatment agent in relation to the head of the person are determined by evaluating the relative positions of a reference system that moves with the head of a person being treated with respect to a further reference system that moves with the movement of the hand carrying the dental treatment agent moved by the person, determined. According to a further preferred embodiment of the present disclosure, the disclosed method preferably includes the step of determining positions of at least one finger, in particular several fingers, of the hand carrying the dental treatment agent by means of the optical detection device in various relative positions of the dental treatment agent with respect to the head of the person, in particular for determination of the treated parts of the teeth. The data are preferably formed from the sensor data and / or the data acquired by the optical detection device. According to a further preferred embodiment of the present disclosure, the detection device sends the data recorded by the sensor to a terminal via a radio link, information and / or instructions being output via the terminal as a function of the recorded data.

The terms optical detection device and optical detection device can be understood as being used synonymously in the context of this disclosure.

Fig. 1a

ein erfindungsgemäßes System zum Erfassen von Zahnbehandlungsbewegungen;

Fig. 1b

ein internetbasiertes Netzwerk, in das mehrere erfindungsgemäße Systeme eingebunden sind;

Fig. 2a

eine ausgestreckte Hand mit charakteristischen Oberflächenpunkten oder Oberflächenanteilen; und

Fig. 2b

eine zur Faust geballte Hand mit charakteristischen Oberflächenpunkten oder Oberflächenanteilen, die ein Zahnbehandlungsmittel hält und

Fig. 3

drei verschiedene Ansichten eines Zahnbehandlungsmittels.

Further advantages, objectives and properties of the present invention are explained with reference to the following description of the attached drawings, in which features according to the invention, processor devices or systems for detecting the movement patterns in a dental treatment are shown by way of example. Elements of the devices and methods according to the invention which at least essentially correspond in terms of their function in the figures can be identified with the same reference numerals, although these components or elements need not be numbered or explained in all figures. The invention is described below purely by way of example with reference to the accompanying figures. It shows:

Fig. 1a

a system according to the invention for detecting movements of the dental treatment;

Figure 1b

an internet-based network in which several systems according to the invention are integrated;

Fig. 2a

an outstretched hand with characteristic surface points or surface parts; and

Figure 2b

a hand clenched into a fist with characteristic surface points or surface parts that holds a dental treatment agent and

Fig. 3

three different views of a dental treatment agent.

In Fig. 1a a system 1 for recording dental treatment movements by means of a processor device 2 or a mobile terminal 2 is shown. The mobile terminal 2, which is preferably designed as a mobile phone, preferably has at least or precisely one optical detection device 4, in particular an optical detection device 4, which can preferably be designed as a camera. The camera preferably records exactly or more than 15 fps (frames per second or images per minute), exactly, up to or more than 30fps, exactly, up to or more than 45fps, exactly, up to or more than 60 fps, exactly, up to or more than 75 fps, exactly, up to or more than 90 fps, exactly, up to or more than 120fps or exactly, up to or more than 200 fps. The reference number 6 denotes the detection area in which at least part of the head, in particular one or both pupils, the nose and / or the mouth, a person 8 and at least part of the dental treatment agent 14 hand 5 is preferably located. The reference numerals 10 and 12 preferably identify axes or coordinate directions that are fixed to persons and which preferably follow exactly a movement of the head. The reference number 14 denotes a dental treatment agent in the form of a toothbrush, which, according to the reference number 16, is moved in space and thus with respect to the head. Movement sequences for correcting the movement and / or for specifying a movement sequence can be displayed on the optical output device 18 of the processor device 2.

In Figure 1b it is shown 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, in particular depending on the history of illnesses or defect histories of the individual persons.

Both Figures 1a and 1b is based on the method for determining a movement pattern of a dental treatment agent, in particular a toothbrush, which occurs during a dental treatment, in particular a tooth cleaning. The method comprises at least the steps of moving the dental treatment agent to treat surface portions of the teeth at least in an X / Y plane, using at least one optical detection device 4, data relating to at least one movement parameter, in particular the direction or rotation of movement, the acceleration, the The path and / or the speed of the dental treatment agent 14 in relation to a reference system 10 moving with the head 8 of the person being treated can be detected. The data preferably consist of image information, such as pixel arrangements, and preferably depict at least part of the head 8 of the person and part of the hand 5 of the person with which the person guides the dental treatment agent. The reference numeral 7 denotes the arm of the person to which the hand 5 leading the dental treatment agent 14 is connected.

The processor device 2 defines a further three-dimensional reference system 16, which moves with the dental treatment device 14 when the dental treatment agent 14 moves in space, the further reference system 16 particularly preferably through characteristic anthropometric body points of the hand, body lines of the hand and / or body surfaces of the hand, with which the dental treatment agent 14 is guided is formed. This is advantageous because the dental treatment agent 14 can be completely enclosed by the user's hand 5 and can thus be at least partially invisible to the optical detection device 4. Based on the movements of the characteristic, in particular anthropometric, body points of the hand, body lines of the hand and / or body surfaces of the body forming the further reference system 16 The position and / or position of the dental treatment agent 14 can be determined by hand. In order to define the further three-dimensional reference system 16, the processor device 2 preferably evaluates the data acquired by the optical detection device 4, in particular image information.

However, it is also conceivable that the data captured by the optical detection device 4 are processed or evaluated by means of a processor device 2 which is designed outside of the mobile terminal device. It is preferably conceivable here that the processor device is a server device which receives the data via an Internet connection. The processor device embodied as a server device preferably sends the processed or modified or evaluated data, or data generated based thereon, to the terminal via an Internet connection.

Provision of the recorded data to the or a further processor device for determining the movement pattern and preferably the determination of the movement pattern by means of the processor device or by means of the further processor device. It is conceivable that, for. B. the further reference system is defined by means of a processor device of a mobile or stationary terminal and the determination of the movement patterns is carried out by the processor device of the mobile terminal. The data captured by the optical detection device 4 are preferably evaluated with regard to the reference system 10 moving with the head 8 of the person and the reference system 10 moving with the hand 5 of the person. The relative movements of the reference systems 10, 16 to one another are particularly preferably determined.

The position and / or position of the dental treatment agent 14, in particular the brush portion of the toothbrush, with respect to the hand 5 guiding the dental treatment agent 14 is preferably determined at least temporarily, in particular before and / or during the teeth brushing. The position and / or posture of the dental treatment agent 14, in particular the brush portion of the toothbrush, is preferably determined by evaluating the data determined by the optical detection device 4.

Fig. 2a shows the back of the hand of a hand 5, the reference numerals 48, 49, 50 and 51 denoting purely exemplary characteristic points on the surface of the hand, which can be separated in terms of color or due to gray levels from the surrounding surface parts of the hand, in particular neighboring surface parts of the hand. Thus, the reference numeral 48 identifies the transition between two fingers. The reference numerals 49 and 50 denote the knuckles of the hand and the reference numeral 51 denotes a knuckle of a finger. It was recognized that these body surface points or parts and similar body surface points or parts in an image are each very characteristic due to different color designs or different shades of gray and are therefore very well suited for optical detection, which is very useful for the user simple and functionally very resilient procedure is made possible.

In Figure 2b The hand 5 is shown purely by way of example with a dental treatment agent 14. The individual characteristic body points or sections can be seen from this representation, as they are preferably detected by the optical detection device 4.

It is based, for example, on the knowledge that different main parts in an image have different colors or shades of gray and thus body points, body lines and / or body surfaces can be identified from the image and can be used to determine a reference system.

Fig. 3 shows three different views of a dental treatment agent 14. The dental treatment agent is preferably an electric toothbrush, in particular one with a rotating brush head and / or with ultrasound generation. The dental treatment means here preferably consists of a handle part 80 in which the energy supply device, a communication device and sensor devices are particularly preferably provided. Furthermore, the dental treatment agent preferably has an interchangeable brush element 82 on which a brush head 84 is preferably arranged. The alignment of the dental treatment agent 14 with respect to the optical detection device 4 is shown schematically in each of the circles shown. It can be seen from this illustration that for a camera-based determination of the alignment of the dental treatment agent 14, not only the side view, top view and rear view are sufficient, but also a large amount of image information about positions in between is required. The dental treatment agent can namely be rotated 360 ° around three axes and presents a different view in each position. Even if the image data are acquired in 10 ° steps, image data must be provided for 36 x 36 x 36 = 46656 views. According to the present disclosure, the processor device accesses an image data library that contains more than 50% of the image data on the dental treatment agent, in particular more than 60% or more than 70% or more than 80% or more than 90% or up to to 90% or up to 100% of all possible alignments of the dental treatment agent with respect to the optical detection device, the number of possible alignments preferably in 36 ° steps or in 18 ° steps or in 10 ° steps or in 9 ° steps or in 8 ° Steps or in 6 ° steps or in 4 ° steps or in 3 ° steps or in 2 ° steps or in 1 ° steps or in 0.5 ° steps or in intermediate values or continuously from this. The image data preferably represent characteristic points on the surface of the dental treatment agent and / or lines on the surface of the dental treatment agent and / or surface portions of the dental treatment agent. The image data library is preferably used to determine a movement and / or an orientation of the dental treatment agent. The determination of the movement and / or the alignment of the dental treatment agent is preferably carried out in relation to the reference system moving with the person's head. The image data library is particularly preferably stored on a storage means of the mobile terminal or on a server. It is also conceivable that the image data library is automatically downloaded from a server to the terminal as a result of an identification or registration of the dental treatment agent.

In a simplified and generalized way, it is conceivable that a 3D model of the dental treatment agent or the silhouette of the dental treatment agent is provided. The 3D model or the silhouette of the dental treatment agent or image data that represent the 3D model or the silhouette can be used to determine the alignment of the dental treatment agent with respect to the optical detection device. The images captured by the optical detection device are then preferably evaluated in such a way that a comparison of the image component showing the dental treatment agent with the 3D model or the silhouette or the image data representing the 3D model or the silhouette is used to determine the orientation of the dental treatment agent the optical detection device allows. Furthermore, the facial image components of the person are determined from the images captured by the optical detection device, whereby the orientation of the person's face with respect to the optical detection device can be determined. Based on the alignment of the person's face with respect to the optical detection device and the alignment of the dental treatment agent with respect to the optical detection device, the movement path or movement pattern is then particularly preferably determined when brushing the teeth.

Claims (14)

1. System (1) for recording dental treatment movements by means of a mobile end-user
   device (2), comprising a mobile end-user device and a dental treatment means
   wherein the mobile end-user device (2) is a mobile phone or TabletPC,
   where the mobile phone or TabletPC has at least or exactly one camera,
   wherein one or both pupils and the mouth of a person (8) brushing teeth and at least part of the hand (5) guiding the dental treatment means (14) are located within the field of view of the camera,
   wherein the dental treatment means is a toothbrush, wherein the toothbrush is moved in space and thus relative to the head of a treated person during a dental treatment,
   wherein the toothbrush comprises at least one guiding support structure,
   wherein a treatment device for at least indirect contact with a tooth surface and a contact region for holding the toothbrush are arranged or formed on the guiding support structure,
   wherein an acceleration and/or rotation sensor for detecting movement parameters is physically connected to the guiding support structure at least during use of the toothbrush,
   wherein the toothbrush is an electric toothbrush and the acceleration and/or rotation sensor is fixedly connected to the electric toothbrush,
   wherein the electric toothbrush has a communication device for wireless data exchange with the mobile phone or TabletPC, and
   wherein the electric toothbrush comprises a replacement brush element,
   wherein the mobile phone or TabletPC uses the sensor data and the camera data to determine movement parameters.
2. System according to claim 1,
   characterized in that
   a pressure sensor is provided in or on the toothbrush to detect the contact pressure applied by the toothbrush on the teeth and/or gums
   and
   wherein the output of the signals and/or information to be output in dependency of the detected pressure takes place in real time, wherein the output of the signals and/or information takes place by means of an optical output device.
3. System according to claim 2,
   characterized in that
   the mobile phone or TabletPC can be connected to the Internet at least temporarily
4. System according to claim 3,
   characterized in that
   identification data witrh respect to the dental treatment means can be transmitted to the mobile phone or TabletPC by means of the communication device, wherein the data being provided on a storage element of the dental treatment means.
5. System according to claim 4.
   characterized in that
   the optical output device is part of the mobile phone or the TabletPC, wherein data can be received by the mobile phone or the TabletPC via the Internet to be outputted by means of the output device of the mobile phone or the TabletPC, wherein the data preferably comprising information relating to movement parameters of the dental treatment means and/or the pressure with which the dental treatment means is pressed against the teeth and/or the gums,
   or
   wherein motion sequences for correcting the movement and/or for specifying a motion sequence can be displayed on the optical output device of the mobile phone or Tablet PC.
6. System according to claim 5,
   characterized in that
   an image data library is stored on a storage medium of the TabletPC or mobile phone,
   wherein the TabletPC or mobile phone accesses the image data library,
   wherein the image data library comprises image data of the electric toothbrush with respect to more than 100 orientations of the electric toothbrush relative to the camera, wherein the Tablet PC or mobile phone matches the data acquired by the camera with the image data of the image data library to determine the orientation of the electric toothbrush relative to the head of the person,
   or
   wherein the image data library comprises the image data with respect to more than 50% of all possible orientations of the electric toothbrush (14) relative to the camera (4).
7. System according to any of the preceding claims,
   characterized in that
   operating states of the dental treatment means can be preset and/or selected and/or adjusted by means of actuating and/or adjusting elements arranged on the electric toothbrush.
8. Method for detecting dental treatment movements by means of a mobile end-user device (2), wherein the mobile end-user device (2) is a mobile phone or TabletPC, wherein the mobile phone or TabletPC comprises at least or exactly one camera,
   wherein the method comprising the following steps:

   Detecting one or both pupils and the mouth of a person (8) brushing teeth and at least part of the hand (5) holding a dental treatment means (14),

   wherein one pupil or both pupils and the mouth and at least one part of the hand are within the field of view of the camera,

   Detection of accelerations and/or rotations of the dental treatment means during the use of the dental treatment means by means of an acceleration and/or rotation sensor,

   wherein the dental treatment means is a toothbrush,

   wherein the toothbrush comprises at least one guide support structure, wherein a treatment device for at least indirectly bringing the toothbrush into contact with a tooth surface and a contact region for holding the toothbrush are arranged or formed on the guide support structure, wherein the acceleration and/or rotation sensor for detecting movement parameters is physically connected to the guide support structure at least during use of the toothbrush, wherein the toothbrush is an electric toothbrush and the acceleration and/or rotation sensor is fixedly connected to the electric toothbrush, and

   wherein the electric toothbrush has a communication device for wireless data exchange with the mobile phone or TabletPC, and wherein the electric toothbrush comprises a replacement brush element,

   Transmitting the sensor data to the mobile phone or TabletPC using the communication device,

   Performing a motion parameter determination, wherein the mobile phone or TabletPC uses the sensor data and the camera data to determine the movement parameters.
9. Method according to claim 8,
   characterized by
   Detecting of the contact pressure applied by the toothbrush on the teeth and/or the gums, wherein a pressure sensor being provided in or on the toothbrush for detecting the contact pressure
   and
   Outputting of the signals and/or information to be output in dependency on the detected pressure in real time, wherein the output of the signals and/or information takes place by means of an optical output device.
10. Method according to claim 9,
    characterized by
    at least temporarily connecting the mobile phone or TabletPC to the Internet.
11. Method according to claim 10,
    characterized by
    Transmitting identification data with respect to the dental treatment means to the mobile phone or tablet PC, wherein the identification data being transmitted by means of the communication device, wherein the data being provided on a storage element of the dental treatment means.
12. Method according to claim 11,
    characterized in that
    the optical output device is part of the mobile phone or Tablet PC,
    and
    wherein said mobile phone or Tablet PC receives data via the Internet to be output by the output device of said mobile phone or Tablet PC, wherein said data preferably comprising information regarding movement parameters of the dental treatment means and/or the pressure with which the dental treatment means is pressed against the teeth and/or gums,
    or
    wherein motion sequences are displayed on the optical output device of the mobile phone or Tablet PC to correct the movement and/or to specify a motion sequence.
13. Method according to any of claims 8 to 12,
    characterized in that
    operating states of the electric toothbrush can be preset and/or selected and/or adjusted by means of actuating and/or adjusting elements arranged on the electric toothbrush.
14. Computer program product comprising instructions that cause the system of claim 1 to perform the process steps of claim 8.

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