Cleaning appliance

A dental cleaning appliance comprising:

• a fluid reservoir configured to store working fluid;
• a fluid delivery system comprising a fluid inlet, a pump configured to draw the working fluid from the fluid reservoir through the fluid inlet, a hydraulic accumulator configured to receive the working fluid from the pump, a nozzle having a fluid outlet, and a valve located between the accumulator and the nozzle, the valve having an open position and a closed position and being configured so that in the open position the accumulator can deliver a burst of the working fluid to the nozzle for delivery to teeth of a user and in the closed position the accumulator can be replenished from the fluid reservoir by action of the pump;
• and
• a control circuit configured to actuate the pump and control the position of the valve.