A hand-operable toothbrush for selectively dispensing dentifrice that includes a proximal section defining a reservoir and a distal section defining a bristle section including a mechanism for engaging the proximal section. The bristle section includes a head portion including a plurality of spaced bristles and a power mechanism for vibrating same. The toothbrush also includes a dispensing mechanism for manually adjusting a volume of the reservoir and thereby causing dentifrice to dissipate outwardly from the reservoir and head portion as needed. The dispensing mechanism includes a gasket engaged with the distal section and a snap ring positioned within the reservoir. The dispensing mechanism and the power mechanism are independently operable.