Training for dentistry angle against

The invention relates to a drive of the angles against that aims to automate various procedures in dentistry for controlling the movement of instruments attached to the instrument carrier for endodontics contra-angle or periodontology. According to the invention a coil (2) powered by a low voltage direct current (3) is subjected to a magnetic flux which drives the bobbin (2) in a first direction. By reversing the direction of the feed stream (4), the coil (2) moves in the reverse direction. The movement of the coil is transmitted to an instrument holder for endodontics or periodontics. The coil power supply frequency (2) determines the frequency of the movement of the tool in the cylinder head of the contra-angle and the displacement force can be adjusted by adjusting the current supplied to the motor coil, separately within 2 direction of travel. The device according to the invention is particularly intended for dentistry