A tracking attachment for an oral care implement that includes a housing and a tracking unit configured to track position, orientation, or movement of the oral care implement. The housing may define a receiving cavity that is configured to receive a portion of the oral care implement. The housing may include a first housing portion having an inner surface that defines a first portion of the receiving cavity that is open at both of the first and second ends of the first housing portion and a second housing portion that mates with the first housing portion to detachably couple the second housing portion to the first housing portion. The second housing portion may have an inner surface that defines a second portion of the receiving cavity that is open at the second end of the second housing portion.

A method (600) for estimating a location of an oral care cleaning device (10), including the steps of: (i) providing (610) an oral cleaning device comprising a sensor (28), a guidance generator (46), a feedback component (48), and a controller (30); (ii) providing (620) a guided cleaning session to the user comprising a plurality of time intervals separated by a cue to switch from a first location within the mouth to a second location; (iii) generating (630) sensor data from the sensor; (iv) estimating (640), based on the generated sensor data, the location of the oral care device during the plurality of time intervals; (v) generating (650) a model to predict the user's cleaning behavior; and (vi) determining (660) the location of the oral care device based on the estimated location of the oral care device and the model of the user's cleaning behavior.

An electric toothbrush system may include a brush head, an adapter, and a personal computing device. The brush head may have a plurality of bristles. The adapter may include an actuator, a stem extending from the actuator, and a connector electrically connected to the actuator. The personal computing device may contain a power source. The stem may be configured to couple with the brush head, and the actuator may be configured to receive power from the personal computing device through the connector and actuate the brush head via the stem.

Disclosed is a cleaner having a structure that a supporting member and a cleaning module are coupled to or separated from a cleaner body. The cleaner includes a cleaner body having a module mounting portion; a supporting member inserted and mounted to the module mounting portion, and separated and withdrawn from the module mounting portion, through a bottom part of the cleaner body; and a cleaning module coupled to the supporting member so as to be inserted or withdrawn together with the supporting member when the supporting member is inserted or withdrawn.

An oral care system that includes an oral care implement and a tracking attachment. The oral care implement may include a handle and a head. The tracking attachment is detachably coupled to the oral care implement. The tracking attachment may include a first component comprising a first housing having an inner surface that defines a first cavity and a second component comprising a second housing having an inner surface that defines a second cavity. When the tracking attachment is coupled to the oral care implement, a first portion of the handle is positioned within the first cavity and a second portion of the handle is positioned within the second cavity.

A method (300) for determining an orientation of a user's head with an oral care device (10), the method including the steps of: (i) providing (310) an oral care device comprising a device head (16), a sensor (28), and a controller (30); (ii) determining (320) when the device head is located within a calibration area (110) within the user's oral cavity (200); and (iii) estimating (330), by the controller based on an orientation of the device head within the calibration area, an orientation of the user's head.

A dental treatment appliance includes a handle, a nozzle for engaging the teeth of the user and for delivering a burst of working fluid to the teeth of a user, and a datum component also for engaging the teeth of the user. Each of the nozzle and the datum component is moveable relative to the handle. A control circuit detects relative movement between the nozzle and the datum component as the appliance is moved along the teeth of a user, and actuates the delivery of working fluid to the teeth of the user depending on the detected relative movement.

A tracking attachment for an oral care implement that includes a housing and a tracking unit configured to track position, orientation, or movement of the oral care implement. The housing may define a receiving cavity that is configured to receive a portion of the oral care implement. The housing may include a first housing portion having an inner surface that defines a first portion of the receiving cavity that is open at both of the first and second ends of the first housing portion and a second housing portion that mates with the first housing portion to detachably couple the second housing portion to the first housing portion. The second housing portion may have an inner surface that defines a second portion of the receiving cavity that is open at the second end of the second housing portion.

A device for providing an indication of brushing activity of a toothbrush comprises an accelerometer configured to produce acceleration data from motion of the toothbrush, and components for filtering the acceleration data to produce gravitational components and filtering the acceleration data to produce linear acceleration components. The device further comprises a component for projecting the gravitational components and the linear acceleration components into an n-dimensional space, where and for performing a clustering process on the projections of gravitational components and linear acceleration components into n-dimensional space to produce clustering results. The clustering results comprise a plurality of clusters each of which represents a brushing area. A brushing area can be determined based on an assignment of subsequent gravitational components and linear acceleration components of acceleration data to a particular cluster, and feedback provided to a user based on the determination of brushing area, thereby providing indication of brushing activity.

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.