ULTRASONIC REMOVAL OF BROKEN INSTRUMENTS IN ROOT CANALS
ULTRASONIC REMOVAL OF BROKEN INSTRUMENTS IN ROOT CANALS
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DOI：
10.1111/j.1365-2591.1986.tb00493.x
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发表时间：
1986-11-01
影响因子：
5
通讯作者：
OSADA, T
中科院分区：
文献类型：
--
作者：
NAGAI, O;TANI, N;OSADA, T
开发了一种采用新型超声波根管治疗装置去除根管内破损器械的方法。使用拔出的牙齿进行的结果表明，与不规则形状的根管中的器械相比，紧紧锁定在圆形根管中的破损器械更难以取出。该方法已应用于 39 个临床案例，其中 26 个案例中的片段被成功删除，而在 6 个案例中，可以绕过片段旁边的文件。因此，在39例器械破损的临床病例中，有32例可以器械到达顶点。
A method to remove broken instruments in root canals was developed employing a new ultrasonic device for root canal treatment. The results, using extracted teeth, showed that broken instruments locked tightly in round root canals were more difficult to remove compared with those in irregularly shaped root canals. This method was applied in 39 clinical cases, and in 26 of these the fragment was removed successfully while in six cases it was possible to bypass a file alongside the fragment. Therefore, in 32 out of the 39 clinical cases with broken instruments, it was possible to instrument to the apex.