A power toothbrush apparatus may include a body having a cavity and an opening leading to the cavity. An electric motor may be situated within the cavity and may include first and second biasing members; a stator casing situated between, and linearly biased by, the first and second biasing members, the stator casing may further include at least one opening and at least one electromagnet to generate a magnetic field; and a rotor which may have opposed ends and which may extend through the at least one opening of the stator casing, the rotor may further include an output shaft. The power toothbrush may further include a workpiece having a brush head coupled thereto and which may be coupled to one of the opposed ends of the output shaft.

An oral care device comprises a head portion and a handle portion. The head portion comprises at least one supporting arm and a base. The supporting arm extends from the base. A sensor is exposed from the supporting arm. The handle portion is configured to move relative to the head portion. The handle portion comprises a processor, wherein the processor is configured to receive signals from the sensor and analyze the signals received from the sensor.

A device for cleaning interproximal spaces between teeth. The device includes a coupling body having a coupling portion for removably coupling with a handle apparatus. An interdental member extends from the handle apparatus. Energy is transferred from the handle apparatus to the interdental member. The interdental member has a profile for fitting within and cleaning an interproximal area. The interdental member is formed from a flexible polymer material.

The flossing device includes a head unit, a handle, and a neck that is coupled to the head unit at one end and to the handle at an opposite end. The flossing device provides a horizontal vibrational movement for flossing. The handle of the flossing device includes a drive motor and a drive mechanism that transfers drive motor rotation into a horizontal left-right displacement of the head unit to generate the horizontal vibrational movement of the floss. The horizontal vibration provides more efficient and effective flossing. The drive mechanism includes a cam and an eccentric collar that generates horizontal left-right displacement as the cam rotates. The drive mechanism also includes an elongated shaft with a head adapter to secure the neck to the head unit; a sidewall spacer surrounding a portion of the elongated shaft to limit the horizontal left-right displacement; and an eccentric collar that mates with the drive motor to generate the horizontal vibrational movement of the head unit.

Disclosed is a multi-functional visual electric toothbrush, including a main unit, an oral viewer, an interdental cleaning appliance and an electric toothbrush head. The oral viewer is connected to the main unit, the interdental cleaning appliance is connected to the front end of the oral viewer, and the electric toothbrush head is connected to a toothbrush driving mechanism. A circuit system and a control system of the main unit can not only transfer the energy of a power supply to the toothbrush driving mechanism, so as to drive the electric toothbrush head to work for large-area oral cleaning, but also connect a lighting system, an observation system and a switch of the oral viewer to control the oral viewer to work. The interdental cleaning appliance may be used cooperatively with the oral viewer to perform targeted cleaning on difficult-to-clean food debris in an oral cavity.

An oral treatment device includes a head for use in treating an oral cavity of a user, an inertial measurement unit, IMU, configured to generate signals dependent on position and/or movement of the head relative to the oral cavity, and intraoral image sensor equipment configured to generate image data representing at least a portion of the oral cavity. The oral treatment device includes a controller configured to process the generated signals and the generated image data using a trained classification algorithm to determine an intraoral location of the head of the oral treatment device. The controller is configured to control the oral treatment device to perform an action based on the determined intraoral location.

An oral treatment device includes a head for use in treating an oral cavity of a user, the oral cavity including a plurality of oral cavity zones, and an inertial measurement unit, IMU, operable to output signals dependent on position and/or movement of the head. The oral treatment device includes a controller configured to receive signals from the IMU indicating position and/or movement of the head relative to the oral cavity, and process the received signals using a trained non-linear classification algorithm to obtain classification data. The classification algorithm is trained to identify, from the plurality of oral cavity zones, an oral cavity zone in which the head of the oral treatment device is located. The controller is configured to control the oral treatment device to perform an action using the obtained classification data.

An oral treatment device includes an inertial measurement unit, IMU, operable to output signals dependent on movement of the oral treatment device. The oral treatment device includes a controller configured to receive signals from the IMU indicating movement of the oral treatment device relative to the oral cavity, and process the received signals using a trained classification algorithm to obtain classification data, the classification algorithm being configured to determine whether the oral treatment device is being moved according to a predetermined movement type. The controller is configured to control the oral treatment device to perform an action using the classification data.

An oral treatment device includes image sensor equipment operable to generate image data representing at least a portion of an oral cavity of a user. The oral treatment device includes a controller configured to process the generated image data to identify an interproximal gap between adjacent teeth in the oral cavity of the user. The controller is configured to compare at least one characteristic of the identified interproximal gap with at least one characteristic of one or more previously identified interproximal gaps of the oral cavity of the user. The controller is configured to control the oral treatment device to perform an action based on a result of the comparison.

An oral treatment device includes an inertial measurement unit, IMU, operable to output signals dependent on position and/or movement of the oral treatment device. The oral treatment device includes a fluid delivery system for delivering working fluid to an oral cavity of a user. The oral treatment device includes a controller configured to process signals received from the IMU indicating position and/or movement of the oral treatment device relative to the oral cavity of the user, and on the basis of the processing, output a control signal to the fluid delivery system to control delivery of the working fluid.