The fluid-dispensing power toothbrush includes a selected toothbrush architecture, generally, a handle portion, a head portion which is removable from the handle portion and a fluid-dispensing system which is removable with the head portion. The fluid-dispensing portion includes a pump and a fluid reservoir, with the reservoir being removable from the pump. The entire reservoir extends down along an exterior surface of the handle, below the lower edge of the head portion. A cover member overlies and mates with the handle, covering the reservoir when the cover member is in a closed position.