移除乳齒中的斷裂鎳钛根管銼針－病例報告

Broken Ni-Ti Instrument Removal in a Primary Tooth: A Case Report

洪雅欣(Ya-Shin Hong) ； 蔡佩芬(Pei-Fen Tsai) ； 陳文惠(Wen-Hui Chen)

《臺灣兒童牙醫學雜誌》 9卷1期 (2009/04) Pp. 8-12

https://doi.org/10.6319/TJPD.2009.9(1).2

摘要

在乳齒根管治療中，傳統上以不锈鋼的根管銼針來進行根管清創及塑形。近年來，新的鎳钛旋轉器械也被應用於乳齒的根管治療上，但使用上應注意避免發生鎳钛銼針非預期斷裂的情形。本病例為一位六歲一個月大的男童，在右下第一乳臼齒有一斷裂的鎳钛根管銼針逸出其遠心側根管外，並合併牙根吸收的情形，因而拔除乳臼齒並取出斷針。本文也回顧相關文獻，針對造成鎳钛根管銼針斷裂的可能原因及如何取出斷針做一般討論。

關鍵字

斷裂器械 ； 鎳钛旋轉器械 ； 乳齒

並列摘要

In the endodontic treatment of the primary teeth, stainless steel files were used traditionally for root canal debridement and shaping. Recently, Ni-Ti rotary instruments were also applied in the treatment. However, cautions must be taken to avoid unexpected fracture of the Ni-Ti files. This report presented a six-year-one month old boy with a broken Ni-Ti instrument beyond the distal canal of the lower right primary first molar concomitant with root resorption. We extracted the tooth and removed the broken file. The possible causes of separation of Ni-Ti rotary instrument and the techniques to remove broken files were discussed.

並列關鍵字

broken instrument ； Ni-Ti rotary instrument ； primary teeth