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CJY—Ⅰ型超声波洁牙机是国产全晶体管超声波治疗机。它由超声波发生器产生的电能在通过锆钛酸铅压电晶片时,产生压电效应并由电磁震荡转变成机械震荡。其工作头产生振摆的振幅约为20μm,频率43KHZ,工作时的功率可由3W～8W 范围随意调节。该机用于洁牙已有10年历史,但目前尚未见其用于临床根管处理方面报告。本文为探求供临床使用的超声充填头,在多次试验基础上,就该充填头的性状,以及以上颌中切牙根管为例而进行的糊剂充填方法、充填
CJY-Ⅰ-type ultrasonic scaler is made all-transistor ultrasonic therapy machine. The electric energy generated by the ultrasonic generator generates piezoelectric effect when it passes through the lead zirconate titanate piezoelectric film and changes from electromagnetic vibration to mechanical vibration. The work of the first swing amplitude of about 20μm, frequency 43KHZ, the work of the power from 3W ~ 8W range of arbitrary regulation. The machine has been used for tooth decay 10 years of history, but has not yet seen its clinical root canal treatment reports. In this paper, to explore the clinical use of ultrasonic filling head, based on a number of tests, the filling head traits, and the maxillary incisor root canal as an example for the paste filling method, filling