A combination electric toothbrush and water irrigation device that combines a battery powered water irrigation device with a vibrating electric toothbrush, both of which are housed in a self-contained compact hand-held device. The pump for the water irrigation device and the DC motor with an off-center weight are contained within the handle of the toothbrush. A slide out water reservoir allows the user to fill the extended handle portion with water. A flexible water inlet tube is capable of compressing when the water reservoir is in the storage position. A weight fixed to the end of the inlet tube causes the tube to bend via gravity enabling it to be in constant contact with water while the handle is held at various angles. An LED at the underside of the pump housing illuminates the water contained within the transparent water housing.

A fluid delivery system of a dental cleaning appliance includes a pump for drawing a working fluid through a fluid inlet, a hydraulic actuator for receiving working fluid from the pump, a drive for actuating the pump, and a nozzle having a fluid outlet for ejecting working fluid from the appliance. The drive includes a motor and a control circuit for operating the motor. The control circuit is configured to detect stalling of the motor in response to the load applied to the pump by the pressurized working fluid stored in the accumulator, and to deactivate the motor when stalling of the motor has been detected.

A dental cleaning appliance includes a handle; an electronic display, and a control circuit for activating the display. The handle includes a body and a transparent panel connected to the body. The panel defines a trough-shaped recess beneath which the display is located.

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. The fluid delivery system includes a nozzle from which the burst of working fluid is delivered to the teeth of the user. The appliance also includes a brush unit which extends at least partially about the nozzle. The brush unit includes a bristle carrier and a plurality of bristles mounted on the bristle carrier. A drive unit drives the movement of the bristle carrier relative to the nozzle.

A dental cleaning appliance includes a handle, a display, and a control circuit for activating the display. The handle includes a body which is gripped by a user during use of the appliance, a transparent panel beneath which the display is located, and a layer of reflective material disposed on an external surface of the panel and through which, during use, the activated display is visible to the user.

An omnidirectional scientific toothbrush includes a brush handle and a brush head having a U-shaped structure. A central gearset, and tooth outer side brush rollers and tooth inner side brush rollers, both of which are respectively arranged in an upper row and a lower row according to tooth layout, and a tooth end surface brush roller driven by the central gearset are installed in an inner cavity of the brush head. The tooth end surface brush roller is located in a space defined by the tooth outer side brush rollers and the tooth inner side brush rollers. The rotating action of the tooth end surface brush roller allows the tooth end surface brush roller to simultaneously brush occlusal surfaces of upper and lower rows of teeth. Thus the cleaning operation of all of the teeth in the mouth may just be finished at one time automatically.

An omnidirectional scientific toothbrush includes a brush handle and a brush head having a U-shaped structure. A central gearset, and tooth outer side brush rollers and tooth inner side brush rollers, both of which are respectively arranged in an upper row and a lower row according to tooth layout, and a tooth end surface brush roller driven by the central gearset are installed in an inner cavity of the brush head. The tooth end surface brush roller is located in a space defined by the tooth outer side brush rollers and the tooth inner side brush rollers. The rotating action of the tooth end surface brush roller allows the tooth end surface brush roller to simultaneously brush occlusal surfaces of upper and lower rows of teeth. Thus the cleaning operation of all of the teeth in the mouth may just be finished at one time automatically.

Provided is a toothbrush having suction function and washing function, and the toothbrush includes a toothbrush rod including a head portion and a handle portion, a brush disposed at the head portion, a through-hole portion formed at the head portion to supply cleaning water to an oral cavity or suction in dirty water from the oral cavity, a guide tube disposed within the toothbrush rod and connected to the through-hole portion to deliver the cleaning water to the through-hole portion or deliver the dirty water suctioned in through the through-hole portion to the outside, and an external main body to supply the cleaning water to the guide tube and to receive the dirty water from the guide tube.

Provided is a toothbrush having suction function and washing function, and the toothbrush includes a toothbrush rod including a head portion and a handle portion, a brush disposed at the head portion, a through-hole portion formed at the head portion to supply cleaning water to an oral cavity or suction in dirty water from the oral cavity, a guide tube disposed within the toothbrush rod and connected to the through-hole portion to deliver the cleaning water to the through-hole portion or deliver the dirty water suctioned in through the through-hole portion to the outside, and an external main body to supply the cleaning water to the guide tube and to receive the dirty water from the guide tube.

An omnidirectional scientific toothbrush includes a brush handle and a brush head having a U-shaped structure. A central gearset, and tooth outer side brush rollers and tooth inner side brush rollers, both of which are respectively arranged in an upper row and a lower row according to tooth layout, and a tooth end surface brush roller driven by the central gearset are installed in an inner cavity of the brush head. The tooth end surface brush roller is located in a space defined by the tooth outer side brush rollers and the tooth inner side brush rollers. The rotating action of the tooth end surface brush roller allows the tooth end surface brush roller to simultaneously brush occlusal surfaces of Upper and lower rows of teeth. Thus the cleaning operation of all of the teeth in the mouth may just be finished at one time automatically.