Device with a a dental instrument for endodontic treatment, in particular to the root canal treatment

摘要

A device with a a dental instrument (11) for endodontic treatment, in particular to the root canal treatment, has a tool (21) in the form of a tooth file and a rotary drive (19) for generating a working movement of the tool. A in longitudinal direction of the tool acting oscillator (25) is an ultrasonic generator, the essentially in the axial direction of the tool is arranged and active. A control device (32) has the effect that, as a function of the torque and / or the rotational speed of the rotational drive of the vibration generator is switched on and, if desired, also the rotational behavior of the rotary drive (19) is influenced. The oscillation phase, for example, can thus always is then switched on and become effective when the tool in the root canal (22) is somewhat relieved, so that chips from the chip grooves of the tool are released.