EP3174431B1 - Method and system for determining motion patterns during a dental treatment - Google Patents

Description

The invention relates to a system and a method for determining movement patterns in a dental treatment, in particular tooth cleaning. Because of the relatively long intervals of up to several months or even years between the individual visits to the dentist, the problem arises that the instructions of the dentist regarding frequency, duration and type of treatment are easily forgotten or, over time, movements that are not optimal are incorporated , whereby the oral hygiene is not optimally guaranteed or damage to the oral cavity, in particular firm and / or soft mouth components, such as teeth, jaw and / or gums.

The publication EP 1 379 149 B1 discloses a method for monitoring the position of a toothbrush in relation to a person's teeth, the method comprising: providing a toothbrush with a first position sensor, the first position sensor being 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 high market acceptance difficult.

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 movements recorded are undefined in space, which causes a movement of the head to falsify the recorded data. In addition, complex modifications of the toothbrush are assumed, which makes the system complex and expensive and thus also appears inaccessible to a mass market. In addition, the system must be installed in a fixed position so that a camera can recognize the modified toothbrush in a defined manner.

Furthermore, both systems are based on predefined data sets, which means that it is not possible to improve knowledge about toothbrush movements.

Other publications relating to this technical field are WO2010 / 059484A1 , US2009215015A1 and US2008 / 146887A1 .

It is therefore an object of the present invention to provide a method and a system which enables an optimization of oral health, in particular oral hygiene, dental health, jaw health and / or gum health. The invention should preferably also enable control, in particular for continuous or permanent control, or monitoring, in particular for continuous or permanent monitoring, of oral hygiene. More preferably, the invention should be as simple, inexpensive and usable by as many people as possible.

This object is achieved on the one hand by a method according to claim 1 and by a system according to claim 2.

A method disclosed here preferably comprises the steps: Method for determining a movement resulting from a dental treatment, in particular tooth cleaning, in particular movement sequence or movement pattern, of a dental treatment agent, in particular a toothbrush, at least comprising the steps:
Providing at least a portion of the data, in particular image data, recorded by means of an optical detection device with respect to a movement parameter of a dental treatment agent that is moved at least in an X / Y plane relative to a reference system that moves with the head of a person being treated to a processor device for determining the movement, wherein the data represent characteristic body points of the hand surface, body lines of the hand surface and / or body surfaces of the hand with which the dental treatment agent is guided, the processor device defining a further three-dimensional reference system which also moves with the dental treatment agent when the dental treatment agent moves in space, whereby 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 detected or determined reference systems.

Another method disclosed here relates to a method for determining at least one cleaning feature resulting from a dental treatment, in particular tooth cleaning, which preferably comprises at least the following steps: Providing at least part of the data, in particular image data, recorded by means of an optical detection device a movement parameter of a dental treatment agent moved at least in an X / Y plane relative to a first reference system moving with the head of a treated person to a processor device for determining the movement parameter, the data representing features of the hand with which the dental treatment agent is guided, Define 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 the features of the hand with which the dental treatment agent is guided, determining the cleaning feature at least by determining a relative movement between the first reference system and the second frame of reference, the Cleaning feature is preferably at least the number of passes 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 movement speed of the toothbrush head when the at least one tooth surface portion is passed over. The cleaning feature preferably represents, at least indirectly, the number of overriding movements of the toothbrush head over at least one tooth surface portion of at least one tooth and / or at least indirectly the direction and / or movement speed of the toothbrush head when the at least one tooth surface portion is passed over. The cleaning feature is preferably recorded for a plurality of 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 opposite row of teeth or direction of the palate or tongue) of the tooth and one surface portion is the area of the tooth connecting the inner area and the outer area (especially the horizontal area). The cleaning feature is preferably processed and output to a user via an output device and / or transmitted to a server device for further use, in particular analysis. Furthermore, at least one cleaning feature or a plurality of cleaning features for a plurality of teeth is preferably detected or determined.

Before determining the movement, positions of at least one finger, in particular a plurality of fingers, of the hand guiding the dental treatment agent in various relative positions of the dental treatment agent relative to the head of the person are preferably determined in order to determine the portions of the teeth treated in each case. The determination of the movement is preferably based on the relative movement of the reference systems and / or the positions 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 tooth portions treated in each case.

According to a preferred embodiment of the present disclosure, end positions of the hand guiding the dental treatment agent relative 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 relative to the further reference system.

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

An end position here preferably denotes an orientation or position of the hand guiding the dental treatment agent relative 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 relative 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 grayscale distributions.

According to a preferred embodiment of the present disclosure, the position of the at least one finger is at least partially determined by the data which 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 further data recorded 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 grayscale distributions are described by the data detected by the optical detection device.

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

According to a preferred embodiment of the present disclosure, the end positions are used to determine how the relative position of the hand relative to the head is when treating a specific tooth or a plurality of specific teeth, in particular the left and / or right posterior tooth of the upper and / or lower row of teeth 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 product is guided.

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

Alternatively or additionally, a further method disclosed here can refer to a method for at least partially determining, in particular personal, the result of a dental treatment, in particular tooth cleaning. Relate movement pattern or tooth cleaning feature of a dental treatment agent, in particular a toothbrush, the method preferably at least the step of optically recording 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, the acceleration, the distance covered and / or the speed, a dental treatment agent and the step of the visual separation of the dental treatment agent, in particular that Dental treatment means hand, of at least one further image component captured by the optical detection device 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 both locally and at any time and therefore also at home with private persons at any time i.e. Monitoring and objective assessment of dental treatment can be carried out regardless of the time. The recorded data are to be processed in such a way, in particular in real time, or are preferably processed in real time in such a way that e.g. the movement pattern or tooth cleaning feature can be analyzed by a treating dentist or the private person or the patient himself, as a result of which individual adjustments can be made to the movement sequences taking place during dental treatment. The data collected in this way can not only be used individually for the acute optimization of movement patterns, but can also be scaled up, e.g. used by health insurance companies and / or research institutions. By transmitting the data to a central evaluation station, e.g. On the one hand, it opens up the possibility of processing the generated raw data centrally with adequate computing power, comparing them with optimal movement schemes and sending them to the local end devices; on the other hand, the data is also made available, in addition or as an alternative, for large-scale clinical studies for research purposes or for enables 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 end devices for recording 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 pattern 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 grouped on the basis of matching features. Furthermore, it is conceivable that a step of comparing the determined movement patterns or the recorded data with characteristic standard data takes place, these being provided in a database, the database being at least partially locally held on a mobile terminal device and / or at least partially being held on a server becomes.

Furthermore, it is conceivable that during the use of the device a step of outputting, in particular optical, haptic and / or acoustic output, for information about correction, standard and / or ideal movements, in particular depending on the current, i.e. e.g. is provided in real time, certain movement patterns or as a function of an already determined movement pattern or a movement characteristic. Optical output 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 preferably describes the output of certain tones and / or the output of voice instructions. Haptic output can e.g. be understood 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 next to, above and / or in comparison with the movement pattern actually detected or with the movement pattern actually detected. Corrective movements can e.g. display a proposal for a change or adaptation of the movement compared to the movement pattern recorded. Standard movements can e.g. the average movements of a defined group of people or the movements known to be optimal from clinical studies. Ideal movements can e.g. 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 to treat surface portions of the teeth at least in an X / Y plane, wherein, using 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 of movement or rotation, the acceleration, the path and / or the speed are recorded, and providing the recorded data 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, for adapting the movement of the dental treatment agent as a function of the adjusted movement patterns, and outputting information by means of an output device as a function of the derived or determined correction parameters. This method is advantageous because it should give a person performing a dental treatment, in particular tooth cleaning, preferably immediate feedback or correction information on the movement sequence, or correction information for correcting or adapting the movement sequence should be output to a person performing the dental treatment, in particular in real time they guide the dental treatment agent with a movement, in particular software technology, which is assessed as unsuitable or a movement pattern which is assessed as unsuitable.

This embodiment is advantageous because e.g. Children who can be taught suitable movement patterns identified, in particular monitored, with regard to the movement sequences during dental treatment, in particular tooth cleaning, in particular. An optical output device, e.g. the display of a mobile phone, a watch, a wristband, a game console or a tablet PC can output an image or a video that shows the child the preferred optimal movement patterns, in particular those in a local storage device and / or on a server and / or in a local or internet-based database in data form, visually displays or outputs movement patterns. 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 in terms of signal technology and is preferably housed in the same housing as the output device. If the child deviates from the displayed movements or movement patterns, then a signal can preferably be output that explains the deviation 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 recorded, and the derivation or determination of the correction parameters is preferably carried out taking into account the registered teeth. The input mask can be e.g. can be visualized via a display device of a terminal, in particular of the terminal which also has the detection device. Preferably, by means of an input device, which can preferably be part of the display device, a person can indicate which number of teeth is present and / or which position and / or which orientation and / or which defects have individual, several or all teeth.

The correction parameters are preferably derived or determined taking into account the registered teeth. The registration of the teeth can e.g. by means of the, in particular optical, detection device, in particular a camera, i.e. at least one image of the dentition is preferably taken, the image being evaluated by software and e.g. the number, orientation and / or position and / or defects of the teeth is recorded. It is therefore preferably also possible to detect empty spaces in the dentition.

Additionally or alternatively, it is conceivable that the number, orientation 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 the respective tooth is (e.g. incisors, canine, premolar, molar). It is also conceivable that properties of the individual teeth or relationships between the individual teeth can be recorded.

Defects are preferably understood to be a decrease in 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. Here, 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 from the detection device or a reference point or the size or the distance of a component of the head from the detection device or a reference point. In the calibration, the optical detection device particularly preferably detects a plurality of body-fixed points or surface points, preferably one or more anterior teeth and / or the contact area or boundary area extending in the tooth longitudinal direction between the anterior teeth being detected. 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 captured. The detection of the position of the incisors of the upper jaw and / or the border area between these incisors is often possible with the upper lip raised, but this cannot always be ensured when brushing the teeth. Nevertheless, the detection of the position of the incisors offers 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, in particular forehead wrinkles, or the pupils, a possibility of defining an extremely precise coordinate system or reference system on the head of a person. For clinical studies, this should or can preferably be done with established dental coordinate definitions such as, for example, the Frankfurt horizontals; be related to the Camperian plane or the occlusal plane. 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, chin, forehead, one ear or two ears, etc. This is advantageous because, on the one hand, the coordinate system that has been defined always remains detectable regardless of the position of the lips, as a result of which 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. The soft tissue formation that may occur when opening the mouth should or can be compensated 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, with at least the extension of the object in one dimension, i.e. 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 for determining dimension parameters, e.g. to record 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 portions of the teeth, etc. The object is preferably the person using the dental treatment agent, the known dimension of the person preferably being its size. Additionally or alternatively, it is conceivable that the object is the tooth 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 agent (cf. 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 the dental treatment agent. Alternatively or additionally, it is conceivable that the pressure detection is effected by means of the optical detection device. A bend of the dental treatment agent is detected and set depending on 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 (e.g. barcode or QR code) is optically recorded and identified. The identification of the dental treatment agent enables the information relating to the specific dental treatment agent regarding its properties, in particular the strength values, to be stored or called up automatically for a processor device. It is also conceivable that the information relating to the properties of a dental treatment agent can also be made available manually in a database, in particular of a mobile terminal, or can be stored or registered. The information relating to the properties can preferably be stored locally in data form on the mobile terminal or on a server. According to a further preferred embodiment of the present disclosure, a pressure which is exerted during the dental treatment, in particular a tooth cleaning, by means of a dental treatment agent, in particular a toothbrush, is thus preferably exerted on the teeth or gums of the person experiencing the tooth cleaning, with an optical detection of the dental treatment agent , in particular indirectly or directly, by means of the optical detection device, with the detection device capturing image information or generating image data and using the image information or the image data to determine, in particular elastic, deformation, in particular deflection, of the dental treatment agent, the pressure at least depending on the deformation of the dental treatment agent and preferably further data that include properties of the dental treatment agent. It is also conceivable that, depending on the pressure determined, a signal or information can be output via an output device. The signal or the information preferably represents a recommendation for action to the user of the dental treatment agent, in particular to the person who is experiencing 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. The signals and / or information are particularly preferably 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. Particularly preferably, the signals and / or information on the pressure are 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 experiences and / or carries out a dental treatment, are also communicated . The data on the properties of the dental treatment agent can be material properties and / or strength values and / or dimensions and / or bending stiffness 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, can preferably be determined by means of the optical detection device. a body, in particular a head, a person, in particular with respect to which the movement patterns are recorded, preferably at least two points can be connected with a line or are virtually connectable or are thought to be connectable and at least one third point is not on this Line lies, wherein the reference system is defined by the at least three recorded points and wherein a movement of the dental treatment agent relative to this reference system is recorded or wherein at least three preferably predetermined points of the dental treatment agent, in particular a toothbrush, are recorded by means of the optical detection device, at least two points are connectable with a line and at least a third point does not lie on this line, the reference system being defined by the at least three recorded points and movement of the person, in particular the head, relative to this reference system being recorded.

According to a further preferred embodiment of the present disclosure, depending on a movement of the body, in particular the head, the person, with respect to which the movement patterns are detected, different points of the body, in particular the head, of the person are defined in relation to the optical detection device Frame of reference. This embodiment is advantageous because the person's head does not have to be completely still when performing the method, but can move preferentially and nevertheless an accurate detection of the movement patterns is possible. Should e.g. As a result of a person's head turning, a surface point recorded to define the reference system can no longer be detected, another body-fixed or head-fixed point or surface point or several other body-fixed or head-fixed points or surface points is preferably recorded even before the surface point can no longer be detected , by means of which the reference system is maintained. As body-fixed or head-fixed points or surface points e.g. 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 the upper jaw, also points from devices attached to the body, in particular to the head, such as e.g. Clothing, hat, glasses, are recorded.

According to a further preferred embodiment of the present disclosure, the processor device is a mobile terminal (for example a mobile phone or tablet PC), which sends the recorded data over the Internet to a server device for further processing and / or over the Internet for output by means of an output device of the device receives, the data comprising information relating to movement parameters of the dental treatment agent. Also disclosed is a system for at least partially or at least partially indirectly determining a personal and preferably dynamic movement pattern of a dental treatment agent, in particular a toothbrush, resulting from dental treatment, in particular 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 relative to a treatment area. The system preferably comprises at least one detection device, in particular a sensor device or an optical detection device, for recording data on at least one movement parameter, in particular the movement direction, the acceleration, the distance traveled and / or the speed of the dental treatment agent, and at least or exactly 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 (for example a smart watch), 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 fully or partially generated movement patterns to a server device, which preferably receives personal movement patterns from dental treatment agents 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 repetition criterion, the dental treatment repetition criterion preferably specifying 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 wireless tariff or a local network, such as. B. a WLAN. The energy criterion preferably represents a state of charge of a terminal, in particular a mobile terminal, supplied with energy, in particular electricity, by an accumulator. This criterion-dependent transmission of the partially or completely generated movement patterns is advantageous since the movement patterns can first be calculated on the side of the data processing device, ie on the terminal side, and the amount of data transfer between the individual terminals and the server unit can thus be kept relatively low. This is also advantageous since the server device must have a significantly lower computing power if it already receives partially or completely prepared movement patterns and can process them further. The server device then preferably does not have to first effect or calculate the complete generation of the movement patterns from the raw data. Alternatively, however, it is also conceivable for the data recorded by the detection device to be forwarded to the server device for further processing. Forwarding can take place immediately after recording or depending on certain criteria. The criteria can e.g. B. An energy, connection, time, data volume and / or dental treatment repeat criterion. In this case configuration, the server device can preferably be viewed as a data processing device, ie a data processing device is not absolutely necessary on the end user side or in the area of the detection device Processing of the recorded data causes. However, a processor device, in particular a mobile telephone, is preferably 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 ascertained information about the dental health status, the number of visits to the dentist per year and / or the treatment history, the tooth cleaning agents used, etc. by specific persons and links this information to the 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, by means of the data generated by the server device, consisting of the dental health status, the number of visits to the dentist per year and / or the treatment history and the recorded movement parameters or the movement patterns, clear controls and monitoring can be carried out and lessons for further improving the dental treatment technology are draggable.

A dental treatment agent that can preferably be used or used in the described 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 one Tooth surface and a contact area for holding the dental treatment agent are arranged or formed, wherein a detection device, in particular a position, speed, acceleration and / or rotation sensor, is physically connected to the guide support structure at least during use of the dental treatment agent. It is conceivable here that the detection device can be coupled or coupled to any dental treatment agent. It is also conceivable, in particular in the case of electric toothbrushes, that the detection device is permanently or permanently connected to the electric toothbrush. According to a further preferred embodiment of the present invention, the dental treatment device has a communication interface for transmitting the acquired data, in particular in raw or processed form, to a data processing device, the communication interface being particularly preferably designed in such a way 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 e.g. a mobile phone, which preferably has at least one optical recording device, in particular a camera, for recording data relating to at least one movement parameter, in particular the direction or rotation of the movement, the acceleration, the distance traveled and / or the speed, of a dental treatment device and a data processing device for in particular visual separation of 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.

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 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, which preferably corresponds to a coordinate cross or takes over its functionality, in order to additionally detect a specific movement parameter of the tooth To enable dental treatment agents 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 exactly 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 is defined when the movement of the tooth Dental treatment agent moved in the room with the dental treatment agent. 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. However, it can also be formed by surface points, lines and / or surfaces of the dental treatment agent. The second camera is preferably arranged fixed in relation to the first camera, so that the detection system can be calibrated once before use. It is also preferably conceivable for the at least two cameras to be movable relative to one another. The at least two cameras are preferably at least, exactly or a maximum of 2, 3, 4, 5 or 6 cameras.

According to a further preferred embodiment of the present disclosure according to the invention, 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 body-fixed points which, when the person, in particular the head, moves with the person, especially with the head, and moves and defines a three-dimensional coordinate system or reference system in the detected portion of the head or by means of the points, a movement of the dental treatment agent depending on the specified coordinate system of the head or a movement of the detected portion of the head in Dependence of the coordinate system of the dentifrice is determined. It is conceivable here that the coordinate system is directly assigned 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 portions, in particular two or more knuckles of the hand, which the transition between the palm and the Fingers, is defined.

This embodiment is advantageous because, at least indirectly, at least indirectly, a movement of any dental treatment means, in particular any commercially available toothbrush or electric toothbrush, can be detected optically, at least indirectly, and the spread of optical detection means, in particular handheld cameras, is very high, which means that the system is applicable to an extremely large number of people. The data processing device particularly preferably identifies and separates the dental treatment agent from the other image components in such a way that its movements, in particular with respect to or relative to a reference or coordinate system defined on the head or in the area of the head of the person, can be detected and particularly preferably evaluated . Furthermore, in particular, preferably at least or exactly one body part of a person can be identified and separated 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 part of a head, e.g. Forehead, eyebrows, eye socket, mouth, lips, ears, cheeks and / or chin, preferably one or more body-firm, in particular skull-firm, parts such as e.g. the forehead, chin and / or nose. However, it is also conceivable that several body parts, e.g. the eyes, mouth and / or nose are detected. It is therefore conceivable that one or more photos of the operator or the patient, in particular of the head or face of the operator, are recorded and stored. Individual body shapes, in particular facial component shapes or shapes of characteristic facial features, are preferably manually or automatically detectable or determinable or can be registered as reference points or reference surfaces against which one or more movement parameters of the dental treatment agent are recorded. As a reference point, e.g. one or two eyes, the nose, the mouth, one or two ears and / or one or two lips are used or registered. Furthermore, additionally or alternatively, the eyebrows or the eyes, in particular the pupils, of a person can 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 fixed. 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 in the direction of extension of the nose, in particular the bridge of the nose, of the person can be defined or fixed, which preferably a second direction deviating from the first direction, in particular the X, Y or Z direction of the Coordinate system defined. The first direction and the second direction are preferably aligned substantially or exactly at right angles to one another. A third direction preferably extends at right angles 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 perform head and / or body movements without the detection of the movement patterns becoming imprecise or impossible.

Furthermore, the present disclosure 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 that results during dental treatment.

The present disclosure further relates to a method for at least partially determining a pressure resulting from a dental treatment, in particular tooth cleaning, and exerted on the teeth or gums of a person undergoing 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 tooth treatment using an optical detection device or performing an optical detection of the dental treatment agent during tooth treatment using an optical detection device. It is preferably conceivable that in the case of indirect detection of the dental treatment agent, a position and / or alignment and / or posture of the hand by means of which the dental treatment agent is guided is recorded. Immediate detection of the dental treatment agent preferably describes the actual optical detection of the dental treatment agent. Generating 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 is preferred as the deformation a torsion of a toothbrush shaft and / or a toothbrush head is detected. 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, wherein the pressure is 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 comprising data on properties of the dental treatment agent.

It is also conceivable that, depending on the pressure determined, a signal or information can be output via an output device. The signal or the information preferably represents a recommendation for action to the user of the dental treatment agent, in particular to the person who is experiencing 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. The signals and / or information are particularly preferably output via an optical output device. The optical output device is preferably part of a device to which the optical detection device also belongs. Particularly preferably, the signals and / or information on the pressure are 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 experiences and / or carries out a dental treatment, are also communicated . The data on the properties of the dental treatment agent can be material properties and / or strength values and / or dimensions and / or bending stiffness 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, with at least the extension of the object in one dimension, i.e. in the length and / or in the width and / or in the height and / or in the circumference, is known, and the extent of the object in the known dimension or in the known dimensions is used for determining dimension parameters in order to determine geometric relationships, such as to record 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 portions of the teeth and / or the dimensions of the dental treatment agent and / or the distance of the teeth and / or the dental treatment agent from the detection device etc. . The object is preferably the person using the dental treatment agent, the known dimension of the person preferably being its size. Additionally or alternatively, it is conceivable that the object is the tooth 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 which has at least one optical detection device, in particular at least one camera, for detecting data on at least one movement parameter, in particular the direction of movement, the acceleration, the distance covered and / or the speed, one Dental treatment means, and a data processing device for separating an image component representing the dental treatment means 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, the optical detection device preferably comprising at least one camera, in particular has exactly or at least two cameras, for preferably three-dimensional detection of the at least one movement parameter of a dental treatment agent, di e processor device preferably defines a three-dimensional coordinate system that moves when the dental treatment agent moves in space with the hand guiding the dental treatment agent, the optical detection device preferably detecting a portion of a person's head and defining 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 wherein 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 and the acquired data preferably via the Internet sends to a server device for further processing and / or receives data for output via the Internet by means of an output device of the mobile telephone or the tablet PC, the data being above may include information regarding movement parameters of the dental treatment agent and / or the pressure with which the dental treatment agent is pressed onto the teeth and / or the gums.

A method disclosed here further relates to a method for determining a movement resulting from a dental treatment, in particular tooth cleaning, in particular 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 means by means of an optical detection device recorded data, in particular image data, relating to a movement parameter of a dental treatment agent moved at least in an X / Y plane relative to a reference system moving with the head of a person being treated, to a processor device for determining the movement, the data being, for example, characteristic body points on the palm of the hand, body lines of the hand surface and / or body surfaces of the hand, in particular the fingers with which the dental treatment agent is guided. In addition or as an alternative, the data preferably represent specific positions of a plurality of fingers of the hand guiding the dental treatment agent with respect to one another. Determining positions of at least one finger, in particular a plurality of fingers, of the hand guiding the dental treatment agent in different relative positions of the dental treatment agent relative to the head of the person for determining the portions of the teeth treated in each case, determining the movement on the basis of 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 was recognized that the fingers assume a specific position in the treatment of a specific tooth in a specific area of the mouth, which position can be detected by the optical detection device. Most people always use the same positions when treating the respective teeth, so that the respective positions of the fingers provide immediate information about the position of the dental treatment agent.

According to a preferred embodiment of the present disclosure, the processor device defines a further three-dimensional reference system 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 or fingers, body lines of the finger or fingers and / or body surfaces of the finger or fingers with which the dental treatment agent is guided.

A database is preferably provided which has dental treatment agent data. It is conceivable that the database is kept locally on a terminal and / or on a server. An identification means, in particular a software-based identification means, is preferably provided. The identification means detects e.g. information representing the dental treatment agent or the dental treatment agent, e.g. a QR code. The optically recorded dental treatment agent is preferably represented by image information or image data, which are 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 held in the database matches the recorded image data or image information, the data or information stored in the database relating to the specific or identified dental treatment agent is preferably selected and used to determine the pressure with the data or information attributable to a dental treatment agent, which is held in a database, is also via a link such as, for example by reading a code, in particular an optical code, e.g. 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 the data or information entered manually via the mask is used to determine the pressure. Additionally or alternatively, it is conceivable that by means of a radio device, such as e.g. a near-field communication or near-field communication (NFC) or by means of Bluetooth, the data or information relating to a dental treatment agent is transferred to the database or a link to the database is generated or the data are stored for determining the pressure.

Furthermore, the invention relates to a computer program product according to claim 3. This also discloses a method, a system, a computer program product and a device which enables a health status or a change in a health status of a person to be determined in an improved manner. Furthermore, these should preferably be as simple, inexpensive and usable as possible by as many people as possible. A method for determining a state of health or a change in a person's state of health is disclosed therein, wherein the state of health or the change, the state of health with regard to a person's suffering, in particular motor and / or neuronal suffering, in particular with regard to a motor disease or the motor skills of the person's illness, especially e.g. Gout or rheumatism or multiple sclerosis, and / or motor disability or restriction or the person's motor impairment and / or a neuronal disease, in particular e.g. Dementia or Parkinson's, or neuronal damage or neuronal restriction is determined.

The condition is particularly preferably different from a condition which directly affects tooth preservation and / or oral hygiene, such as periodontitis and / or tooth decay and / or gingivitis.

The 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 agent, in particular a toothbrush, which is recorded by means of at least one detection device, with reference movement data for determining deviations between the recorded movement data and the reference movement data and determining of 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 many people do several times a day for many years. The people learn movement patterns that are very stable and change little over time. However, if a person is ill with an illness, such as a motor illness or an illness affecting the motor skills of the person, or a neuronal illness, the movements that occur when brushing the teeth also change with the illness. Many movements initially become slower and / or less precise.

The present method thus offers for the first time the possibility of quantifying or objectifying these changes. It is also grateful that medication or other treatment changes the person's state of health, which can be derived from the movements that occur when brushing teeth.

It is also conceivable that the people can be given feedback on their state of health or the change in their state of health based on the detected and evaluated movements, in particular a medication and / or treatment suggestion can be issued, as a result of which the people independently and methodically supports 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 which were detected 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, movement parameters, such as location data and / or speed data and / or acceleration data and / or directional data and / or inclination data and / or rotation data, of the movement of the dental treatment agent are determined, in particular in relation to, at least indirectly 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 directional data and / or inclination data and / or rotation data, the movement of the hand, are determined at least indirectly are determined, in particular in relation to a reference system moving with the head of the person. The movement data is preferred e.g. directly detected 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 comprises e.g. a determination of maximum deviations and / or average deviations and / or local deviations and / or correspondences of one or more, in particular combined, or all movement parameters, in particular the evaluation includes a determination of how and to what extent individual or more movement parameters quantitatively from reference movement parameters differ.

According to a further preferred embodiment of the present disclosure, the evaluation is dependent on or including specific 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, ultrasound toothbrush), the medication, in particular which medications the person takes when and / or in what amount and / or when the last medication was taken.

According to a further preferred embodiment of the present invention, the evaluation is dependent on or incorporating 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 is or which is arranged in the area of the hand of the person, 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 method preferably further comprising the steps:
Providing at least a portion of the movement data recorded by means of the optical detection device with respect to a movement of a dental treatment agent that is moved at least in an X / Y plane relative to a first reference system that moves with the head of a person being treated, to a processor device, defining a second or further three-dimensional reference system by means of the processor device, which moves with the dental treatment agent when the dental treatment agent moves in space, the further reference system being provided by optically detectable features of the hand with which the dental treatment agent is guided, is formed.

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, end positions of the hand guiding the dental treatment agent relative 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 relative to the further reference system.

According to a further preferred embodiment, the method comprises the step of determining positions of at least one finger, in particular several fingers, of the hand guiding the dental treatment agent in different relative positions of the dental treatment agent relative to the head of the person in order to determine the portions of the teeth treated in each case.

According to a further preferred embodiment, the movement data represent characteristic body points of the hand surface, body lines of the hand surface and / or body surfaces of the hand with which the dental treatment agent is guided, wherein the body points, body lines and / or body surfaces are each identified by characteristic color distributions or grayscale distributions, the Color distributions or grayscale distributions are preferably described by the data recorded by the optical detection device.

Disclosed therein are a method and a system which make it possible to improve oral health, in particular oral hygiene, dental health, jaw health and / or gum health.

The method disclosed here relates to a method for determining a movement pattern or movement course 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, wherein at least one optical detection device records data relating to at least one movement parameter of the dental treatment agent relative to a reference system that moves with the head of the person being treated, the data characteristic points on the surface of the dental treatment agent and / or lines on the surface of the dental treatment agent and / or represent surface portions of the dental treatment agent,
Provision of the acquired data to a processor device for determining the movement pattern, the processor device defining a further three-dimensional reference system that moves at least temporarily in space with the dental treatment agent when the dental treatment agent moves, the further reference system consisting of the characteristic points on the surface of the dental treatment agent and / or the lines are formed on the surface of the dental treatment agent and / or the surface portions of the dental treatment agent and determining the movement pattern or the course of movement, wherein at least one relative movement between the reference system moving with the head of the person being treated and the further reference system is determined.

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 represented by different light and dark and / 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, the image data relating to the dental treatment agent to more than 50%, 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 orientations of the dental treatment agent relative 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 movement and / or the orientation of the dental treatment agent are preferably determined in relation to the reference system moving with the head of the person. 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 device as a result of 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 recorded 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 processed identification data, which preferably includes information about one or more properties of the dental treatment agent, in particular physical and / or mechanical properties.

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

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

According to a further preferred embodiment of the present disclosure, the end position is determined by means of data which are recorded by the optical detection device during the output of dental treatment instructions for treating the back or rear 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 posterior tooth of the upper and / or lower row of teeth of the teeth relative to the head of the teeth treated person.

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 each preferably by means of characteristic color distributions or Grayscale distributions are identified, the color distributions or grayscale 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 overriding movements of 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 movement speed and / or the path of the treatment area of the dental treatment agent when driving over the at least one tooth surface portion.

According to a further preferred embodiment of the present disclosure, a plurality of positions of at least one finger, in particular a plurality of fingers, of the hand guiding the dental treatment agent in different relative positions of the dental treatment agent relative to the head of the person are determined in order to determine the respectively treated portions of the teeth. The thumb is also preferably referred to as a finger. The position of the at least one finger or the plurality of fingers, in particular the 2, 3, 4 or 5 fingers, preferably relative to one another or to at least one further finger of the same hand and / or relative to the back of the hand and / or relative to the dental treatment agent.

According to a further preferred embodiment of the present disclosure, a reference object, in particular the interchangeable brush element or 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 determining the 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 the teeth, in particular during 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 actuating and / or setting elements arranged on the dental treatment agent and / or are selectable and / or adjustable, and / or wherein operating state data can be transmitted to the processor device by means of the communication device and / or wherein identification data and / or shape data relating to the dental treatment agent can be transmitted to the processor device by means of the communication device, the data being stored on a storage 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 model and / or for the specific dental treatment agent 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 movement course is determined from the data acquired by means of the optical detection device and from the operating state data and / or identification data and / or shape data transmitted to the processor device via the communication device of the dental treatment agent.

The dental treatment agent is preferably at least temporarily three-dimensional, i.e. in the X, Y and Z directions, and the movement parameters are particularly preferably recorded depending on the direction and / or orientation. The X-Y plane is a plane that extends in the X direction and in the Y direction, similarly possible other planes extend, 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 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 course being determined from the position of the tooth 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 comprises image data relating to the dental treatment agent for more than 100 orientations of the dental treatment agent relative to the optical detection device, the processor device using the data detected 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.

A method is also disclosed which relates to a method for at least partially determining a movement pattern of a dental treatment agent resulting from a dental treatment, in particular tooth cleaning, for treating surface portions of the teeth, in particular a toothbrush. The method comprises at least the steps: at least indirectly determining a movement of the dental treatment agent in at least one plane, with data or movement data relating to at least one movement parameter of the device being detected by means of at least one sensor, in particular an acceleration sensor and / or a speed sensor and / or a position sensor Dental treatment agent are detected, wherein the detection device is designed such that it is movable relative to the dental treatment agent and in the area of the hand of the person, in particular in the form of a smart watch or a sensor bracelet or a ring or a glove, can be coupled, in particular coupled, and Provision of the recorded data to determine the movement pattern.

Also preferably comprises the steps of comparing the detected movement with movements held in a database, and / or deriving or determining correction parameters, in particular at least one movement direction, for adapting the movement of the dental treatment agent as a function of the compensated movements, and / or issuing 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 holding the dental treatment agent relative to the head of the person are evaluated by evaluating the relative positions of a reference system moving with the head of a treated person relative to another reference system which is related to the movement of the hand holding the dental treatment agent moving the person, determined. According to a further preferred embodiment of the present disclosure, the method preferably comprises the step of determining positions of at least one finger, in particular a plurality of fingers, of the hand guiding the dental treatment agent by means of the optical detection device in different relative positions of the dental treatment agent relative to the head of the person, in particular for determining the each treated part of the teeth. The data are preferably formed from the sensor data and / or the data recorded 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 device via a radio link, information and / or instructions relating to the recorded data being output via the terminal device.

The terms optical detection device and optical detection device can be used synonymously in the context of this invention.

Fig. 1a

ein erfindungsgemäßes System zum Erfassen von Zahnbehandlungsbewegungen;

Fig. 1b

ein erfindungsgemäßes 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, aims and properties of the present invention will become apparent from the following description attached drawings, in which features according to the invention, processor devices or systems for detecting the movement patterns in a dental treatment are shown as an 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 by the same reference numerals, 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 attached figures. It shows:

Fig. 1a

an inventive system for detecting dental treatment movements;

Fig. 1b

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

Fig. 2a

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

Fig. 2b

a hand clenched into a fist with characteristic surface points or surface portions that a dental treatment product holds and

Fig. 3

three different views of a dental treatment product.

In Fig. 1a A system 1 for detecting 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 exactly one optical detection device 4, in particular an optical detection device 4, which can preferably be designed as a camera. The camera preferably captures 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 120 fps or exactly, up to or more than 200 fps. The reference numeral 6 denotes the detection area, in which at least part of the head is preferably located,

in particular one or both pupils, the nose and / or the mouth, of a person 8 and at least part of the hand 5 guiding the dental treatment agent 14. The reference numerals 10 and 12 preferably identify fixed axes or coordinate directions, which preferably follow exactly one movement of the head. The reference numeral 14 denotes a tooth treatment means designed as a toothbrush, which according to reference numeral 16 is moved in space and thus opposite 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 Fig. 1b It is shown that a plurality of 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 movement patterns recorded, in particular as a function of illness histories or defect histories of the individual persons.

Both Figures 1a and 1b is based on the method according to the invention for determining a movement pattern of a dental treatment agent, in particular a toothbrush, which results during dental treatment, in particular tooth cleaning. The method according to the invention comprises at least the following steps: moving the dental treatment agent for treating surface portions of the teeth at least in an X / Y plane, with at least one optical detection device 4 data relating to at least one movement parameter, in particular the movement direction or rotation, the acceleration , the path and / or the speed of the dental treatment means 14 with respect to a reference system 10 which moves with the head 8 of the person being treated. The data preferably consist of image information, such as pixel arrangements, and preferably represent at least part of the head 8 of the person and part of the hand 5 of the person with which the person is guiding the dental treatment agent. The reference numeral 7 denotes the arm of the person to whom the hand 5 guiding the dental treatment agent 14 is connected.

The processor device 2 defines a further three-dimensional reference system 16, which also moves with the dental treatment agent 14 when the dental treatment agent 14 moves in space, the further reference system 16 being particularly preferably characterized by 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 since the dental treatment agent 14 can be completely enclosed by the hand 5 of the user and can thus be at least partially invisible to the optical detection device 4. The position and / or position of the dental treatment means 14 can be determined 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 hand which form the further reference system 16. 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 recorded by the optical detection device 4 are processed or evaluated by means of a processor device 2, which is embodied outside the mobile terminal. It is preferably conceivable that the processor device is a server device that receives the data via an Internet connection. The processor device designed as a server device preferably sends the processed or modified or evaluated data, or data generated on the basis thereof, to the terminal device via an Internet connection.

Providing the acquired data to the or a further processor device for determining the movement pattern and preferably determining the movement pattern by means of the processor device or by means of the further processor device. It is conceivable that z. B. the further reference system is defined by means of a processor device of a mobile or stationary terminal and the movement pattern is determined by the processor device of the mobile terminal. The data recorded by the optical detection device 4 are preferred with regard to the data moving with the head 8 of the person Reference system 10 and the reference system 10 which moves with the hand 5 of the person. The relative movements of the reference systems 10, 16 with respect to one another are particularly preferably determined.

Preferably, at least at times, in particular before and / or during brushing, the position and / or position of the dental treatment agent 14, in particular the brush portion of the toothbrush, relative to the hand 5 guiding the dental treatment agent 14 is also determined. The position and / or position of the tooth 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 color or on the basis of gray levels relative to the surrounding surface portions of the hand, in particular adjacent surface portions of the hand. The reference numeral 48 identifies the transition between two fingers. Reference numerals 49 and 50 denote the knuckles of the hand and reference numeral 51 denote an ankle 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 configurations or different grayscale and are therefore very suitable for optical detection, which makes them very useful for the user simple and functionally very robust procedure is made possible.

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

It is e.g. based on the knowledge that different main parts in a picture have different colors or grayscale and body points, body lines and / or body surfaces can be identified from the picture 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 agent 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. In the circles shown, the alignment of the dental treatment means 14 with respect to the optical detection device 4 is shown schematically. It can be seen from this illustration that not only the side view, top view and rear view are sufficient for a camera-based determination of the orientation of the dental treatment agent 14, but also a large amount of image information about positions in between are required. The dental treatment agent can be rotated 360 ° around three axes and represents 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, the image data relating to the dental treatment agent to more than 50%, in particular more than 60% or more than 70% or more than 80% or more than 90% or until 90% or up to 100% of all possible orientations of the dental treatment agent with respect to the optical detection device, the number of possible orientations 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 thereof. 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 movement and / or the orientation of the dental treatment agent is preferably determined in relation to the reference system moving with the head of the person. 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 device as a result of identification or registration of the dental treatment agent.

Simplified and generalized, 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 silhouette of the dental treatment agent or image data that represent the 3D model or 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, which shows the dental treatment agent, with the 3D model or the silhouette, or the image data representing the 3D model or the silhouette, compared with a determination of the orientation of the dental treatment agent the optical detection device enables. Furthermore, the facial image components of the person are determined from the images captured by the optical detection device, whereby the orientation of the face of the person with respect to the optical detection device can be determined. Based on the alignment of the face of the person with respect to the optical detection device and the alignment of the dental treatment agent with respect to the optical detection device, the course of movement or movement pattern when brushing the teeth is then particularly preferably determined.

Claims (3)

1. Method for determining a movement or movement path of a dental treatment means (14) occurring during a dental treatment, comprising the steps:

   moving the dental treatment means (14) at least in an X-/Y- plane to treat surface portions of the teeth,
   wherein data relating to at least one movement parameter of the dental treatment means (14) relative to a reference system (10), which moves with the head of the treated person, are captured by at least one optical capturing device (4),
   wherein the data represent characteristic points on the surface of the dental treatment means (14) and/or lines on the surface of the dental treatment means (14) and/or surface portions of the dental treatment means (14),

   - providing the captured data to a processor device (2) to determine the movement or the movement path,

   wherein the processor device (2) defines a further three-dimensional reference system (16) that at least temporarily moves together with the dental treatment means (14) in space during a movement of the dental treatment means (14),
   wherein the further reference system (16) is formed from the characteristic points on the surface of the dental treatment means (14) and/or the lines on the surface of the dental treatment means (14) and/or the surface portions of the dental treatment means (14),
   wherein the characteristic points and/or lines and/or surfaces are formed by differing light and dark and/or differently-colored-designed portions of the dental treatment means (14),

   - providing sensor data from one or multiple sensor devices of a detection device, wherein the detection device is physically connected with the dental treatment means (14) at least during the dental treatment,

   wherein the sensor device is a position-, speed-, acceleration- and/or rotation-sensor,

   - determining the movement or the movement path, wherein the data captured by the optical capturing device (4) and the data captured by the detection device are used to determine the movement or movement path, wherein the position of the dental treatment means (14) is determined by the optical capturing device and the movement or the movement path is determined from the position of the dental treatment means (14) or from the positions of the dental treatment means (14) and from the sensor data.
2. System for determining a movement or movement path of a dental treatment means (14) occurring during a dental treatment, comprising

   - a dental treatment means (14) for treating surface portions of the teeth, which is movable at least in an X-/Y- plane,

   - at least one optical capturing device, wherein data relating to at least one movement parameter of the dental treatment means (14) relative to a reference system (10) that moves with the head of the treated person are captured by the at least one optical capturing device,
   wherein the data represent characteristic points on the surface of the dental treatment means (14) and/or lines on the surface of the dental treatment means (14) and/or surface portions of the dental treatment means (14),

   - a processor device for determining the movement or the movement path, wherein the data captured by the optical capturing device (4) and the data captured by the detection device are used to determine the movement or the movement path, wherein the position of the dental treatment means (14) is determined by the optical capturing device and the movement or the movement path is determined from the position of the dental treatment means (14) or from the positions of the dental treatment means (14) and from the sensor data, wherein the

   captured data is provided to the processor device (2) to determine the movement or the movement path,
   wherein the processor device (2) defines a further three-dimensional reference system (16) that at least temporarily moves together with the dental treatment means (14) in space during a movement of the dental treatment means (14), wherein the further reference system (16) is formed from the characteristic points on the surface of the dental treatment means (14) and/or the lines on the surface of the dental treatment means (14) and/or the surface portions of the dental treatment means (14),
   wherein the characteristic points and/or lines and/or surfaces are formed by differing light and dark and/or differently-colored-designed portions of the dental treatment means (14),

   - a detection device having one or multiple sensor devices, wherein the sensor data is provided by the one or the multiple sensor devices,
   wherein the detection device is physically connected with the dental treatment means (14) at least during the dental treatment,
   wherein the sensor device is a position-, speed-, acceleration- and/or rotation-sensor,
   wherein the system is configured to determine the movement or the movement path, wherein the data captured by the optical capturing device (4) and the data captured by the detection device are used to determine the movement or the movement path, wherein the position of the dental treatment means (14) is determined by the optical capturing device and the movement or the movement path is determined from the position of the dental treatment means (14) or from the positions of the dental treatment means (14) and from the sensor data.
3. Computer program product comprising instructions that cause the system of claim 2 to perform the method steps of claim 1.

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