An electric toothbrush, including a refill connectable to a handle via a coupling device. The handle has a drive mechanism, and the refill has a brush head and a motion transmitter functionally connected to the brush head for driving it. The handle has a coupling stem terminating with a free end and including a coupling pin extending from the stem. The refill includes a generally tubular portion formed by refill walls defining an interior space for accepting the coupling stem of the handle. The coupling device comprises a pair of mutually opposite and resiliently deformable cantilevered arms disposed adjacent to the refill walls in the interior space of the refill. Each of the cantilevered arms terminates with a coupling surface for engaging the stem's coupling pin for secure and disengageable connection between the handle and the refill.

The invention relates to a device for cleaning a set of teeth, comprising a handle, a drive arranged on or in the handle and a cleaning member connected movably to the handle and drivably to the drive.

A protection against overloading can here be arranged between the cleaning member and the drive. The overload protection can comprise a slipping coupling, for instance a magnetic coupling.

In addition or instead, the drive can comprise an electric motor and a rechargeable battery, wherein the rechargeable battery can be connected to a USB connection on the handle.

The invention further relates to a cleaning member which is evidently intended for application in such a device.

An electrical brush handpiece, in particular toothbrush handpiece, includes at least one interface for a coupling with a plug-on brush, includes at least one frame unit and includes at least one drive unit for driving the interface which is accommodated in the frame unit, the drive unit including at least one rotor and at least one reset element that is coupled with the rotor with a first end in a rotationally fixed manner and is fixated to the frame unit with a second end in a rotationally fixed manner, wherein the at least one reset element is implemented so as to be plate-shaped.

Automatic toothbrushes are disclosed herein. A toothbrush configured in accordance with embodiments of the present technology can include, for example, a handle and a mouthguard coupled to the handle. The mouthguard can be configured to be positioned within a mouth of a user over multiple teeth of the user. A brush assembly having a plurality of bristles can be removably positioned within the mouthguard for engaging and cleaning the teeth of the user. A motor can be disposed within or coupled to the handle and configured to articulate the brush assembly within the mouthguard.

A biodegradable replaceable toothbrush head preferably for an electric toothbrush. The replacement head can be configured to be removably connected and operated by one or more conventional electric power/drive units. Various biodegradable materials can be used alone or in combination for constructing the replacement head and in certain embodiments the biodegradable replacement can be constructed from solely or primarily corn starch or bamboo. In another non-limiting embodiment, the biodegradable replacement head can be construction from about 60-80% polylactic acid, and about 20-40% talcum.

A toothbrush or oral cleaning implement including a handle defining a first fluid conduit and a handle inlet port, a brush tip extending from a first end of the handle and defining a second fluid conduit, the second fluid conduit in fluid communication with the first fluid conduit, a brush head supported on an end of the brush tip including a fluid outlet in fluid communication with the second fluid conduit, a handle valve positioned between the handle inlet port and the first fluid conduit, and a base removably connected to the second end of the handle. The base including a base fluid inlet port that connects with an external fluid source, a base fluid outlet port in fluid communication with the base fluid inlet port, and a base valve that selectively opens and closes the base fluid outlet port.

Described herein are electronic dual-head tooth cleaning appliances that facilitates simultaneous front and rear surface cleaning of individual teeth. The tooth cleaning appliances or devices can be rechargeable, portable, lightweight and electronic.

A connector for an electric toothbrush to mount a toothbrush head with an electric toothbrush handle of the electric toothbrush is provided. The connector includes a body configured to be received in an opening of the toothbrush head. The body includes a first section, a second section, and a third section extending one above the other, and includes a seating profile, an aperture, and a biasing member. The seating profile is defined at adjoining of the second and third sections. The aperture is formed inside of the body to receive a drive shaft of the electric toothbrush handle. Further, the biasing member is received along the third section and rests on the seating profile, and operatively coordinates with a threaded profile and a flexible profile of the third section to facilitates snugly coupling of the toothbrush head with the electric toothbrush handle of the electric toothbrush.

A dental cleaning appliance includes a fluid reservoir for storing working fluid, a nozzle for delivering working fluid to the teeth of a user, a light source for illuminating the fluid reservoir and a control circuit for activating the light source to generate an alert which is conveyed to the user through the illumination of the fluid reservoir.

Provided are a brush head assembly and an electric toothbrush. The brush head assembly comprises a brush head body, a linking component and a locking cylinder; wherein a component assembly cavity is arranged at the tail end of the brush head body, the linking component is installed in the component assembly cavity, and a deformable locking cylinder including a fulcrum force-receiving part and a force applying part with elastic forces at both ends is embedded; the locking cylinder makes most of the strokes of the drive shaft in the insertion process smooth and convenient, only until the two force applying parts are both in contact with the drive shaft, will force be generated to lock the drive shaft, and the locking effect achieved by this elastic force can be maintained for a long time. Thus ensuring the capabilities of torque transmission and axial retention.