根测仪(Denjoy JoyPex 5)又叫根管长度测量仪、电子根尖测定仪,是用来测量根管工作长度的一种精密电子仪器。通过根测仪的指引,使医生对根管长度有精准的把握,以做到完美的充填。
研究传统法和根测仪法确定根管工作长度后行根管充填的效果,评价两者的准确性和优缺点。
To study the effect of root canal filling after confirm the canal working length by using traditional method and endometer method, and to evaluate their veracity, advantages and disadvantages.
简述全站仪的构成及测设图根控制点的基本原理,分析布设图根控制点的测量精度并得出结论。
The form of electronic total station and the basic principle of determining and setting up root control points were related briefly. The accuracy of setting up root control points was analysed.
现场试验表明,钻井阀开关灵活,密封可靠,提高了气体钻井时接单根的效率和作业的安全性,测斜时不碰、挂测斜仪。
The field test indicates that characterized by flexible switching and reliable sealing, the new drilling valve can improve the efficiency of connecting individual pipe whi…
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