Tooth brushing monitoring system is disclosed that includes an oral hygiene device with a separate an optical sensor to track positional changes of the oral hygiene device. The optical sensor may alone or in combination with motion sensor data determine position and orientation of an oral hygiene device with respect to a user's mouth. The system may then determine the quality, quantity and location of brushing and provide feedback on the quality of brushing. This feedback provides motivation for users to increase their brushing habits, leading to a decrease in plaque, tooth decay and gingivitis.

This invention relates to a device (1) for performing personal care operations on a subject. The device (1) comprises a handheld base body (3), a driving unit (400) to receive and drive an interchangeable treatment head (2) to perform the personal care operation, a sensor (7) for measuring the amount of current drawn from a motor arrangement (5, 6) while the driving unit (400) is being operated. The device (1) further comprises a control unit (8) operably connected to the sensor (7) and the driving unit (400) and configured to control the driving unit (400). The control unit (8) is configured to identify the individual treatment head (2) fitted on the driving unit (400) by comparing the measured motor current at the predefined measuring time (t1) with at least one predefined current threshold (C).

An oral cleaning system provides motivating feedback to a user before brushing and includes: a power toothbrush (10); one or more sensors (26) on or within the toothbrush; a processor (30) within the toothbrush configured to process sensor information obtained from the one or more sensors during a first brushing session of a user; and a feedback system (40) on or within the toothbrush responsive to the processor and configured to communicate brushing information to the user at a time subsequent to the first brushing session but before a second brushing session of the user.

Devices, systems, and methods for real-time peeling are disclosed. Peeling can include including evaluating and controlling one or more peelers to remove peel from organic materials. Evaluation can be performed by an evaluation system including a convolutional neural network to determine a peel value. Control can be performed by a machine learning model on the basis of the peel value. Control can include determination of real-time settings for peeler tool speed and/or gate position.

Hands-free systems, devices and methods, adapted for brushing, cleaning and treating all of a user's teeth simultaneously, are provided. In some embodiments, such a device comprises brushes for cleaning all of a user's teeth simultaneously. In some embodiments, such a device includes a generally U-shaped channel(s), accepting, cleaning and/or treating all of a user's teeth simultaneously. Customized fluid jets within such devices are provided, introducing dentifrices and other treatments into the channels. In some embodiments, compartments and cartridges with a proprietary form factor for delivering dentifrice and other treatments and for disposing of waste without mess are provided. In some embodiments, data are gathered, analyzed and serve as the basis for a treatment plan, which may then be carried out by the system(s), device(s) and method(s), over time.

A brush comprising a first motor to control a rotation of a brush head, a second motor to control a vibration of the brush head. In one embodiment, the brush further comprises a controller to control of a ratio between the rotation and the vibration.

A toothbrush has a handle and a treatment head mounted for movement relative to the handle against a spring force when a treatment force is applied in at least one treatment direction onto the treatment head. A treatment force measurement unit for determining the applied treatment force includes a capacitive force senor having a first electrode fixedly mounted with respect to the handle and a second electrode mounted at a distance from the first electrode. The second electrode is movably mounted with respect to the handle. A spring unit is arranged between the first and the second electrode. A control circuit determines at least one parameter indicative of the capacitance between the first and second electrodes, wherein the second electrode is mechanically coupled with the treatment head and is arranged to be moved relative to the first electrode when the treatment force is applied at the treatment head.

A method for promoting compliance with an oral hygiene regimen includes displaying, on a display device, a representation of at least a portion of a set of teeth of a user. The method also includes overlaying an indicium on the representation such that the indicium is associated with a first section of the representation. Responsive to a determination, via at least one of one or more processors, that a head of an oral hygiene device is positioned directly adjacent to a first section of the set of teeth that corresponds to the first section of the representation for at least a predetermined amount of time, the indicium is removed from the display device.

An electric toothbrush includes a brush head at an end of a handle, an acceleration sensor and/or a rotation sensor that detect(s) movement parameters of the electric toothbrush, a wireless communication interface that wirelessly transmits recorded data comprising the detected movements parameters of the electric toothbrush in a processed state and receives treatment mode data for operating the electric toothbrush, a pressure sensor that detects a contact pressure applied by the brush head to teeth and/or gums, at least one first outputting device that visually outputs signals or commands in accordance with the detected contact pressure or in accordance with the detected movement parameters, and at least one second outputting device that haptically outputs signals or commands, in the form of vibrations, in accordance with the detected contact pressure or in accordance with the detected movement parameters.

A system for checking a correct oral hygiene procedure characterised by comprising: a video camera for acquiring the images of the face of a person brushing their teeth with a toothbrush comprising a marker; processing means for analysing said images and for locating the salient points of said face of a person; processing means for analysing said images and for locating said toothbrush; processing means for following the movements of said salient points and for following the movements of said toothbrush; processing means for calculating the movement between said face and said toothbrush and for checking that said relative movement between said face and said toothbrush corresponds with a relative pre-set movement; where said marker is divided into a plurality of areas; and where each of said plurality of areas is coloured, with a colour chosen from a predefined number of colours, to maximise the colour contrast between said areas.