The invention relates to a dynamic mixer for viscous components, in particular for mixing dental compounds, having a rotor (30) and a housing (2), which housing has front inlet orifices (12, 13) for the components and at least one rear outlet orifice (20) and the interior of which comprises a prechamber (17) and a main chamber (22), wherein the prechamber (17) opens out into the main chamber (22) in a distally tapering transition section (16). For precise control of concentration of the components to be mixed of the fed components, even in the event of short-term concentration fluctuations of the same and to achieve a high degree of homogenization, it is proposed that the dynamic mixer (1) has at least one separate channel (23a-d) as passage from the prechamber (17) into the main chamber (22), wherein the width of the separate channel (23a-d) extends over a partial extent of the transition section (16).
