FIELD: medicine.
SUBSTANCE: invention relates to dentistry. Dental tip for endodontal treatment of root canal comprises chuck for securing and retention of endodontic drill, electric motor, with shaft to drive of endodontic drill, engine control unit, which receives input data stream, characterized by fact, that control unit determines consumed electric motor current, while monitoring of input data flow, and controls engine, alternating rotation direction of drill with frequency from 1 to 20 Hz between first and second direction, opposite to first direction.
EFFECT: drill continuously rotates in second direction, when observed data is preset condition of limit torque during rotation in first direction.
13 cl, 7 dwg
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