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超声波振动的根管扩挫工具较一般的手挫工具能有效和省时地完成根管壁的挫平和成型,但由于其动力是振动频率超过20KHz的超声波,操作时不可避免地产生尖啸声,形成噪音污染,且其超声振动须由超声频电能发生器产生并经换能器转换方能振动工作头,主机需要另外设制,不能同牙科动力系统相连,操作尤其不便。瑞士Micro Mega公
Ultrasonic vibration of the root canal setback tool than the average setback tool can effectively and time-saving root canal wall frustration and shape, but because of its power is the vibration frequency of more than 20KHz ultrasound, the operation will inevitably produce a whistling sound , The formation of noise pollution, and its ultrasonic vibration generated by the ultrasonic energy generator and can be transduced by the transducer vibration head, the host needs additional settings, can not be connected with the dental power system, the operation is particularly inconvenient. Micro Mega Switzerland