An oral care system 100 comprising: a toothbrush; and a dispenser (300, 300c) detachably coupled to the toothbrush, the dispenser (300, 300c) comprising: a housing (301, 301c) having a longitudinal axis and an internal reservoir (317, 317c) for containing a fluid; a dispensing orifice in the housing (301, 301c) for dispensing the fluid from the reservoir (317, 317c); a first cam surface (339, 339c) within the housing, the first cam surface (339, 339c) being non-rotatable with respect to the housing (301, 301c); a reciprocator (306, 306c) comprising an actuator (303, 303c), a drive screw (311, 311c), and a second cam surface, the reciprocator (306, 306c) being rotatable with respect to the housing (301,301c); a resilient member (310, 310c) that axially biases the second cam surface and the first cam surface (339, 339c) into mating contact; an elevator (308, 308c) forming an end wall of the reservoir (317, 317c), the elevator (308, 308c) being non-rotatable with respect to the housing (301, 301c) and threadily coupled to the drive screw (311, 311c), characterised in that the mating contact between the first cam surface (339, 339c) and the second cam surface prevents the reciprocator (306, 306c) from being uncoupled from the housing (301, 301c); and in that rotation of the actuator (303, 303c) causes the elevator (308, 308c) to axially advance along the drive screw (311, 311c) in a first axial direction due to relative rotation between the drive screw (311, 311c) and the elevator (308, 308c), and axially reciprocate due to relative rotation between the first cam surface (339, 339c) and the second cam surface. a toothbrush; and a dispenser (300, 300c) detachably coupled to the toothbrush, the dispenser (300, 300c) comprising: a housing (301, 301c) having a longitudinal axis and an internal reservoir (317, 317c) for containing a fluid; a dispensing orifice in the housing (301, 301c) for dispensing the fluid from the reservoir (317, 317c); a first cam surface (339, 339c) within the housing, the first cam surface (339, 339c) being non-rotatable with respect to the housing (301, 301c); a reciprocator (306, 306c) comprising an actuator (303, 303c), a drive screw (311, 311c), and a second cam surface, the reciprocator (306, 306c) being rotatable with respect to the housing (301,301c); a resilient member (310, 310c) that axially biases the second cam surface and the first cam surface (339, 339c) into mating contact; an elevator (308, 308c) forming an end wall of the reservoir (317, 317c), the elevator (308, 308c) being non-rotatable with respect to the housing (301, 301c) and threadily coupled to the drive screw (311, 311c), characterised in that the mating contact between the first cam surface (339, 339c) and the second cam surface prevents the reciprocator (306, 306c) from being uncoupled from the housing (301, 301c); and in that rotation of the actuator (303, 303c) causes the elevator (308, 308c) to axially advance along the drive screw (311, 311c) in a first axial direction due to relative rotation between the drive screw (311, 311c) and the elevator (308, 308c), and axially reciprocate due to relative rotation between the first cam surface (339, 339c) and the second cam surface. a housing (301, 301c) having a longitudinal axis and an internal reservoir (317, 317c) for containing a fluid; a dispensing orifice in the housing (301, 301c) for dispensing the fluid from the reservoir (317, 317c); a first cam surface (339, 339c) within the housing, the first cam surface (339, 339c) being non-rotatable with respect to the housing (301, 301c); a reciprocator (306, 306c) comprising an actuator (303, 303c), a drive screw (311, 311c), and a second cam surface, the reciprocator (306, 306c) being rotatable with respect to the housing (301,301c); a resilient member (310, 310c) that axially biases the second cam surface and the first cam surface (339, 339c) into mating contact; an elevator (308, 308c) forming an end wall of the reservoir (317, 317c), the elevator (308, 308c) being non-rotatable with respect to the housing (301, 301c) and threadily coupled to the drive screw (311, 311c), characterised in that the mating contact between the first cam surface (339, 339c) and the second cam surface prevents the reciprocator (306, 306c) from being uncoupled from the housing (301, 301c); and in that rotation of the actuator (303, 303c) causes the elevator (308, 308c) to axially advance along the drive screw (311, 311c) in a first axial direction due to relative rotation between the drive screw (311, 311c) and the elevator (308, 308c), and axially reciprocate due to relative rotation between the first cam surface (339, 339c) and the second cam surface.