Abstract: A device is provided which determines the end of the processsing time for hardening masses, in particular dental molding masses. The device comprises a display unit and a sensor unit which record the change in at least one of the rheological properties of the mass. A method that can be used with such a device is described.

Abstract: The invention relates to a mixing capsule, especially for producing dental materials. The inventive capsule is provided with a cartridge (10) which is closed on one end thereof by means of a piston (12). A hemispherical cavity is configured in the piston (12). Said cavity forms an additional chamber and is closed in relation to the main chamber (18) of the cartridge (10) by means of a separating device (16). A body (20) that is present in the main chamber (18) in the initial state serves for supporting the mixing process and for chopping through the separating device (16) at the beginning of the mixing process in such a way that the main chamber (18) and the additional chamber (17) form a coherent mixing chamber. The body (20) enters the herispherical additional chamber (17) and acts as a displacing body at the end of the output process. The mixing capsule is provided with a coding.