著者

澤田 則宏 的場 一成

出版者

一般社団法人 日本歯内療法学会

雑誌

日本歯内療法学会雑誌 (ISSN:13478672)

巻号頁・発行日

vol.38, no.2, pp.107-113, 2017 (Released:2017-06-20)

参考文献数

6

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Abstract : Nickel-titanium files can be used to prepare curved canals, but cannot penetrate the original canals if a previous dentist modified the root canal morphology. Negotiation, patency, and glide path before nickel-titanium instrumentation are important for success. This case report introduces a novel technique for negotiating root canals. Negotiation was performed by the novel technique using clockwise and counter-clockwise motion of the engine in three cases. This technique was effective in cases of a ledge in retreatment, a canal not easy to access, and challenging anatomy.