Duration 3:54

Removal of a non-visible broken file beyond the curve(見えない破折器具の除去)

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Published 11 Sep 2021

This case shows how to remove a non-visible broken file. Initially this broken file was non-visible beyond the curve. As the preparation continued with the 90-degree semicircular preparation on the inner wall, the broken file was shifted to a more coronal place and became visible. Then an ultrasonic removal attempt was made and the broken file came out immediately. この症例は見えない破折器具の除去方法を解説しています。最初は湾曲部よりも根尖側にあったので見えない位置にありましたが、シリコンオイル下での超音波振動により破折器具は緩み湾曲部よりも歯冠側に移動しました。そこで除去操作をおこなったところ一瞬で飛べ出てきました。参考までにどうぞご視聴ください。

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