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根管治疗术中超声锉折断情况分析

An analysis of breakage of ultrasonic files during root canal instrumentation.

作者信息

Ahmad M

出版信息

Endod Dent Traumatol. 1989 Apr;5(2):78-82. doi: 10.1111/j.1600-9657.1989.tb00341.x.

DOI:10.1111/j.1600-9657.1989.tb00341.x
PMID:2598889
Abstract

The incidence of fracture of Cavi-Endo ultrasonic K-files during ultrasonic root canal preparation was evaluated. In addition, the appearance and the sites of fractures were examined in relation to the nodal points on the file. The displacement amplitudes and the hardness of the files were quantified to determine their relationship to fracture. It was observed that the files exhibited a low incidence of fracture, which was of the brittle type and occurred at the apical ends. The displacement amplitude and the hardness of the files did not appear to influence the incidence of fracture.

摘要

评估了超声根管预备过程中Cavi-Endo超声K锉的折断发生率。此外，还针对锉上的节点检查了折断的外观和部位。对锉的位移幅度和硬度进行了量化，以确定它们与折断的关系。观察到锉的折断发生率较低，折断类型为脆性，且发生在根尖端。锉的位移幅度和硬度似乎并未影响折断发生率。

相似文献

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An analysis of breakage of ultrasonic files during root canal instrumentation.根管治疗术中超声锉折断情况分析
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