Abstract: A device for oral use includes at least two removable members, namely: a cartridge for containing a first fluid component to be dispensed; and a deformable tank for containing a second propulsion fluid component. The device can be assembled into at least two separate configurations: a first configuration forming a self-contained toothbrush with an interchangeable cartridge, wherein the cartridge is provided between the deformable tank and a toothbrush head end piece in order to permit the discharge of the first and optionally the second fluid components entirely or partially through a same continuous channel; and a second configuration defining a dual-component food dispenser in which the cartridge is connected to the deformable tank so as to permit the discharge of the first and optionally the second fluid components towards an oral dispensing end piece integrated or added on the device, entirely or partially through a same continuous channel.