[Rational cleaning of instruments by means of ultrasonics]

The author presents an ultrasonic cleaning program which is the result of more than 3 years of experience with the 2-litre ultrasonic cleaning apparatus of the VEB Elektromat Dresden. It is based on a classification of the kinds of contaminations occurring most frequently in general stomatological practice to which cleaning solutions were assigned which have been chosen empirically and which have been found to be effective. With a view to more rational utilization, the author points to the employment of inserted receptacles in a double-bath method and gives suggestions for a more general use of this cleaning apparatus in medicine.