A device for directing a fluid onto a plurality of surfaces of the oral cavity, the device including a chamber for maintaining the fluid proximate the surfaces, where the chamber is defined by front, rear and base inner walls of the device and the front and rear inner walls each include a plurality of openings, the devices further including a first manifold a second manifold, a third manifold, and a fourth manifold, a first port, a second port, a third port, and a fourth port； and means for providing an effective seal of the device within the oral cavity.
