A dental cleaning appliance includes a handle and a fluid delivery system for delivering a burst of working fluid to the teeth of a user. Part of the fluid delivery system is moveable relative to the handle as the appliance is moved along the teeth of the user. A sensor provides an output which varies with movement of that part of the fluid delivery system relative to the handle. A control circuit actuates the delivery of working fluid to the teeth of the user depending on the output from the sensor.

An oral irrigator including a base and a handle. The base includes a fluid reservoir, a pump in fluid communication with the fluid reservoir, and a base wireless communication component in electrical communication with the pump. The handle is in fluid communication with the pump. The handle includes a handle wireless communication component and one or more control buttons in communication with the handle wireless communication component. The handle wireless communication component transmits control signals from the one or more control buttons to the base wireless communication component to adjust an operating parameter of the pump.

A head unit configured to couple to a handle of an electric toothbrush, wherein the handle generates vibrational energy transferred to the head unit, the head unit including a proximal end and a distal end; a base adjacent to the proximal end, an exterior wall extending from the proximal end to the distal end, wherein the exterior wall encases a plurality of hollow chambers, wherein each of the plurality of hollow chambers are separated from one another by a scaffold, wherein the scaffold connects to the exterior wall; and a non-symmetrical bulb positioned at the distal end, wherein the non-symmetrical bulb includes a left half and a right half that are interlocked together by way of interlocking notches.

A connector for repeatedly attaching and detaching a head to and from a handle of a manual oral care implement has an outer surface and a recess. The recess forms a cavity within the connector, wherein the cavity comprises a spring-loaded ball-snap element, the element comprising a ball and a spring, the spring applying a radial force onto the ball in a direction towards the outer surface of the connector.

A refill for an electric toothbrush comprises a generally tubular structure formed by refill walls defining an interior space for accepting thereinto a coupling stem of a toothbrush handle. The refill includes a motion transmitter functionally connected to the brush head for driving it. The refill has a coupling device including a pair of mutually opposite and resiliently deformable cantilevered arms disposed in the interior space of the refill and adjacent to the refill walls and extending from respective roots in a circular or semi-circular manner around, and in a plane substantially perpendicular to, the refill's longitudinal axis. Each of the arms is resiliently deformable and terminates with a coupling surface for engaging a coupling pin extending from the handle's coupling stem for secure and disengageable connection therewith.

A powered toothbrush and toothbrush head comprise a transmission housing; a substantially disk-shaped bristle carrier; a plurality of first bristle tufts arranged on the bristle carrier along a first virtual circle; and a plurality of second bristle tufts arranged on the bristle carrier along a second virtual circle, the second virtual circle being concentric with and having a smaller diameter than the first virtual circle, wherein each of the plurality of first bristle tufts includes a plurality of bristles of a first type, having a tapered form.

A connector for repeatedly attaching and detaching a head to and from a handle of a manual oral care implement comprises a first substantially cylindrical section, a second substantially cylindrical section, and an at least partially conically shaped section connecting the first and second cylindrical sections. The first and second substantially cylindrical sections and the at least partially conically section define a longitudinal length extension of the connector, wherein the first substantially cylindrical section and the second substantially cylindrical section are placed off-center with respect to the longitudinal length extension.

A pump toothbrush having a toothpaste tube to dispense dentifrice material to top of bristle head is disclosed. The pump toothbrush has a pump head with a resilient button to create an internal vacuum force to draw the dentifrice material from the toothpaste tube. The toothpaste tube is supported by width-limiting fingers to prevent total collapsing of sidewalls resulting in blocking of its flow channel. A self-closing spout is used for preventing backflow. For a manual pump toothbrush the toothpaste tube has an oval-shaped shoulder for mating with the oval-shaped shoulder of a detachable handle for fastening the toothpaste tube by threads. For an electrical pump toothbrush, a detachable endcap connector is used for swinging out the toothpaste tube from its handle for replacement. A sonic vibration model uses rubber molding to minimize vibration on the handle. A dual-rotary model has two rotary bristle elements engaged by gear teeth.

A method of attaching a brush head to an oral cleansing device is provided. The method may include inserting a drive shaft of the oral cleansing device into a shaft of the brush head. The method may include causing, in response to inserting the drive shaft into the shaft of the brush head, a cantilevered beam inside the shaft to bend outward, creating a reactionary force that presses against the drive shaft.