To provide a cleaning system including either an adapter or a drill drive.

An adapter 1 for a drill drive for driving a lavage system comprises: a first fastening tool for connecting the adapter 1 to the drill drive 2; a second fastening tool for connecting the lavage system to the adapter; a shaft 12 which can rotate in the axial direction and can be connected to the drill drive; a disc 20 which is connected to the shaft at a second end opposite to a first end of the shaft in such a manner that the disc rotates along when the shaft rotates, wherein the disc comprises, on a side away from the shaft, an attachment or a projection in an eccentric arrangement. The adapter can be connected to the lavage system by means of the second fastening tool in such manner that a pestle drives the lavage system, and the pestle preferably hits periodically onto a membrane 28 of the lavage system.