利用螺旋计算机断层扫描在根尖孔以外取出折断的根管器械。

Utilizing spiral computerized tomography during the removal of a fractured endodontic instrument lying beyond the apical foramen.

机构信息

Department of Operative Dentistry and Endodontics Department of Oral Radiology Department of Oral and Maxillofacial Surgery School of Stomatology, Fourth Military Medical University, Xi'an, China.

出版信息

Int Endod J. 2010 Dec;43(12):1143-51. doi: 10.1111/j.1365-2591.2010.01780.x.

DOI:10.1111/j.1365-2591.2010.01780.x

PMID:21039622

Abstract

AIM

To present a case that used spiral computerized tomography (CT) to locate and successfully remove a fractured endodontic instrument lying beyond the apical foramen using a surgical approach.

SUMMARY

The fracture of an endodontic instrument beyond the apical foramen is rare. In this case report, after an attempt to remove a fractured instrument failed, a multi-slice spiral computerized tomography (MSCT) was used for diagnosis and treatment planning. The fractured segment was precisely located and found in the soft tissue and successfully removed by surgery. For the successful removal of a fractured endodontic instrument beyond the apical foramen, the following are necessary: (i) knowledge of the cause of fracture and how to plan treatment; (ii) determining the precise location of the fractured segment using CT; and 3) skilful operation.

KEY LEARNING POINTS

• Fractured endodontic instruments might lie within the soft tissue. • Computerized tomography is an effective diagnostic aid for localizing the precise position of fractured instruments.

摘要

目的

通过手术途径，利用螺旋计算机断层扫描（CT）定位并成功取出超出根尖孔的折断根管器械。

摘要

根管器械在根尖孔外折断是罕见的。在本病例报告中，在尝试取出折断器械失败后，使用多层螺旋 CT（MSCT）进行诊断和治疗计划。准确地定位了折断的部位，并在软组织中发现了它，并通过手术成功地取出。对于成功取出超出根尖孔的折断根管器械，需要以下几点：（i）了解折断的原因和治疗计划；（ii）通过 CT 确定折断部位的准确位置；以及（iii）熟练的操作。