A toothpaste dispensing toothbrush is provided that includes a main body that contains a bladder therein that serves to contain a volume of toothpaste. A metered dosing pump is included that controls the flow of toothpaste from the fluid storage region and through a conduit that exits adjacent the bristles of the toothbrush head. Each operation of the metered dosing pump dispenses a measured and controlled amount of toothpaste into the bristles of the toothbrush. In addition to providing a flow of toothpaste, the rear side of the toothbrush may also include an additional “flavor burst” pack module to deliver an additional flavoring or another material, such as fluoride, to the flow of toothpaste.