[The methodological position of frontal feedbacks during work with large groups of dental students]

Single-channel feedback installations without revertive communication to the single work place and without possibility for evaluating the student's performance may be used with success in lectures and diagnostic exercises for large groups of dental students. Dispensing deliberately with the evaluation of performance permits to carry on a dialogue with the student, which offers the possibility of acting rapidly on the learning process during the very same teaching event. This control procedure allows to activate and motivate the students considerably. The methodical approach is explained.