The invention concerns a storage and mixing device for producing a dental preparation comprising two, three or more mixing components, wherein the storage and mixing device has an individual chamber or two or more chambers which are separated from each other in a storage condition and which contain the mixing components, and an actuator moveable from a storage position for maintaining the storage condition of the storage and mixing device into a reaction position for bringing the mixing components together. In accordance with the invention it is proposed that a first and a second mixing component and optionally one or more further mixing components are already accommodated in the individual chamber or a first chamber of the plurality of chambers when the actuator is still in the storage position.