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六根管下顎第一大臼齒斷裂器械取出

Separated Instrument Removal from a Six Canals Mandibular Molar: A Case Report

摘要


在下顎第一大臼齒的近心牙根中出現四個根管的比例十分罕見,如又合併有斷裂器械時,將會使得治療難度大幅上升。本文提出一個下顎六根管合併有斷裂器械並成功治療的臨床病例。另外文中也會針對下顎第一大臼齒近心牙根超過三根管的比例、要如何增加找到正中近心根管的機率,以及使用超音波器械移除根管中斷裂器械加以討論,以提供臨床治療時的參考。

並列摘要


Successful root canal treatment depends on adequate cleaning, shaping, and filling of the root canal system. The incidence of four canals in mesial root of mandibular molar is very rare. The aim of this case report is to present and describe the identification and management of a mandibular first molar with four canals in the mesial root and with separated instrument in mesial-lingual canal.

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