Tooth brushing monitoring system is disclosed that includes a toothbrush with sensors and a base station. The sensors record data regarding the quality, quantity and location of brushing and the system can analyze the data to 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.

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.

A pressure feedback system continuously monitors the level of pressure or force on a brush head and is programmed to provide a feedback signal to a user based on the amount of pressure. The pressure level is monitored as a function of the change in the speed of the drive shaft. The system includes a housing, a motor, a drive shaft for attachment to a brush head, a feedback device, a sensor capable of detecting a change in the rotational speed of the drive shaft, and a microprocessor. The microprocessor is programmed activate the feedback device as a function of the measured change in rotational speed. The sensor may be a Hall effect sensor, or another sensor that is responsive to a magnetic field. A magnet may be positioned on the drive shaft, or another portion of the system that moves as a function of the drive shaft.

A cleaning device having a handle portion and a surface contacting portion, at least one of the handle portion and the surface contacting portion having a pressure indicator, wherein the pressure indicator provides a reversible signal in response to a certain pressure applied to the cleaning device that is within a certain pressure range.

A computer-implemented method including deriving a health profile of a user from a sample taken from the user and displaying a representation of the health profile on a display, wherein the representation of the health profile includes a list of undesirable oral health characteristics that are detectable from the sample. The representation of the health profile may also include a list of desirable oral health characteristics that are detectable from the sample. Furthermore, a user may select one of the undesirable health characteristics, and in response an indication of historical values associated within he selected one of the undesirable health characteristics may be displayed on the display.

A toothbrush of the present invention includes: a main body including a head portion having a bristle raising surface on which bristles are provided in a standing manner; a light emission unit configured to emit light through a specific region of the bristle raising surface to a tooth surface; and a light reception unit configured to receive radiated light from the tooth surface resulting from the light through the specific region, the light emission unit and the light reception unit being provided in the main body. The toothbrush also includes a detection unit configured to collectively detect whether or not dental plaque or dental calculus is present on the tooth surface based on an output from the light reception unit. The toothbrush further includes a determination unit configured to determine that dental calculus is present on the tooth surface.

A computer-implemented recommendation system is for recommending a type of oral care accessory to be used with an oral care device. The recommendation takes account of oral geometry information in respect of a user and preferably also user behavioral information in respect of the manner in which the particular user conducts their oral care using the oral care device. The recommendation is based on the modelling of mechanical interactions between one or more oral care accessories of a set of oral care accessories and the oral geometry of the user when the user performs an oral care routine. From said modelling a cleaning metric is determined that represents the effectiveness of the oral care routine when using said one or more oral care accessories.

A smart toothbrush-based tooth-brushing evaluation method, apparatus, terminal device and storage medium are provided. The evaluation method comprises: real-time acquiring toothbrushing data detected by a data detecting device in a smart toothbrush; analyzing the toothbrushing data and performing statistics for each brushed tooth surfaces to obtain a brushing time and a number of times of a high-amplitude brushing-with a brushing amplitude greater than a first threshold, a number of times of a strong brushing with a brushing force greater than a second threshold and of a number of times of a horizontal brushing; determining a number of overtime-brushed tooth surfaces brushed for more than a standard brushing time, a number of times of tooth surfaces brushed at a high amplitude, a number of times of strongly-brushed tooth surfaces and a number of times of horizontally-brushed tooth surfaces according to the brushing time.

Hair grooming device, system and method for measuring interaction with hair of a person during a hair grooming event, including a processor readable storage medium, storing executable instructions and a processor in communication with the processor readable storage medium.

A toothbrush includes a head portion (10) having a bristle tufting surface; a grip portion (30) disposed on a rear end side from the head portion; a neck portion (20) disposed between the bristle tufting surface (11) and the grip portion; and a sensing portion (70) for sensing that an external force in a first direction orthogonal to the bristle tufting surface exceeds a threshold value. A reversal portion (80) connects a first region and a second region, and snaps, buckles, and reverses as the head portion is displaced on a rear surface side due to the external force exceeding the threshold value. An elastic deformation portion (90) connects the first region and the second region, and elastically deforms at least up to the external force at which the reversal portion snaps, buckles, and reverses.