A self contained disposable toothbrush comprising a reservoir having a threaded end adapted to receive a cap in one of two positions. A brushing assembly is pivoted on the cap so that in a pre-use position the brushing element is positioned along side the reservoir. The brushing element contains bristles and an elongated connecting passage. When the brushing element is pivoted and snapped to the use position where it extends from the reservoir, the passage to the bristles is connected to liquid in the reservoir for moistening a dehydrated dentifrice. When the brushing operation is completed, the cap is unscrewed, the contents of the reservoir used for rinsing and the cap reconnected to the reservoir by a second set of threads such that the brushing element, after use, is contained within the reservoir.