Abstract: Warm water, (preferably 110° F.) in a reservoir is delivered under pressure to teeth and gums in a spray or mist that is emitted from the bristle-carrying base of a toothbrush. The spray loosens food particles and plaque deposits from tooth surfaces and facilitates their removal by the physical action of the bristles. An inlet conduit has a free end positioned within the reservoir, above the water level, and an outlet conduit has a free end immersed within the water contained in the reservoir. A pump in fluid communication with the inlet conduit pumps air into the container and the pressure in the container drives the water into the outlet conduit and to the toothbrush. A closure member in the container is apertured to accommodate the inlet and outlet conduits.