A mixing capsule for producing a dental preparation includes: a capsulebody having a mixing chamber for receiving a mixing component and formixing the dental preparation from the mixing component, a first fluid and asecond fluid and having an outlet opening for expelling the dentalpreparation, a first cavity for receiving the first fluid, a first piston bodywhich delimits the mixing chamber in the capsule body and which has afirst passageway for guiding the first fluid from the first cavity into themixingchamber, a second cavity for receiving the second fluid and a secondpiston body which delimits the mixing chamber in the capsule body andwhich has a second passageway for guiding the second fluid from thesecond cavity into the mixing chamber. This construction allows for serialmixing of the mixing component with the first and second fluids.