The cartridge (1) includes: a closable external chamber (3) having a cylindrical external wall； a cylindrical closable internal chamber (4)that is arranged coaxially or eccentrically in the external chamber； and a mixing element (2) that is to be mounted separately or connected firmly to the external chamber at its inlet end. The internal chamber is arranged such that it is rotatable and forms the drive shaft for the mobile part of the mixing element. An independent claim is also included for a conveying device for a single-use cartridge for storing and dispensing of dental two-component impression materials.
