Oral care system, kit and method

An oral care system comprising:

• a toothbrush;
• and
• a dispenser detachably coupled to the toothbrush, the dispenser comprising:
• a housing forming an internal cavity extending along a longitudinal axis;
• an elevator disposed within the internal cavity that hermetically separates the internal cavity into a reservoir for containing a fluid and a chamber, the elevator comprising an outer surface forming an end wall of the reservoir and an inner surface forming an end wall of the chamber, the elevator being non-rotatable with respect to the housing;
• a dispensing orifice in the housing for dispensing the fluid from the reservoir;
• an actuator;
• a drive screw in the chamber and operably coupled to the actuator, the drive screw and the actuator being rotatable with respect to the housing, wherein the drive screw does not penetrate through the outer surface of the elevator into the reservoir;
• and
• an extension member having a first end coupled to the elevator and a second end threadily coupled to the drive screw, the extension member being non-rotatable with respect to the housing;
• and
• wherein rotation of the actuator causes the elevator to axially advance along the drive screw in a first axial direction due to relative rotation between the drive screw and the extension member.

An oral care system comprising:

• a toothbrush;
• and
• a dispenser detachably coupled to the toothbrush, the dispenser comprising:
• a housing having a longitudinal axis and an internal reservoir for containing a fluid;
• a dispensing orifice in the housing for dispensing the fluid from the reservoir;
• a first cam surface within the housing, the first cam surface being non-rotatable with respect to the housing;
• a reciprocator comprising an actuator, a drive screw, and a second cam surface, the reciprocator being rotatable with respect to the housing;
• a resilient member that axially biases the second cam surface and the cam surface of the collar into mating contact, wherein the mating contact between the first cam surface and the second cam surface prevents the reciprocator from being uncoupled from the housing;
• an elevator forming an end wall of the reservoir, the elevator being non-rotatable with respect to the housing and threadily coupled to the drive screw;
• wherein rotation of the actuator causes the elevator to (1) axially advance along the drive screw in a first axial direction due to relative rotation between the drive screw and the elevator, and (2) axially reciprocate due to relative rotation between the first cam surface and the second cam surface.

An oral care system comprising:

• a toothbrush;
• and
• a dispenser detachably coupled to the toothbrush, the dispenser comprising:
• a housing forming an internal cavity extending along a longitudinal axis;
• an elevator disposed within the internal cavity that hermetically separates the internal cavity into a reservoir for containing a fluid and a chamber, the elevator comprising an outer surface forming an end wall of the reservoir and an inner surface forming an end wall of the chamber, the elevator being non-rotatable with respect to the housing;
• a dispensing orifice in the housing for dispensing the fluid from the reservoir;
• an actuator;
• a drive screw in the chamber and operably coupled to the actuator, the drive screw and the actuator being rotatable with respect to the housing, wherein the drive screw does not penetrate through the outer surface of the elevator into the reservoir when the elevator is in a fully retracted position;
• and
• the elevator operbaly coupled to the drive screw so that rotation of the actuator causes the elevator to axially advance along the drive screw in a first axial direction due to relative rotation between the drive screw and the elevator.