Young Geoffrey R
School of Dental Science, University of Melbourne, Melbourne, Victoria, Australia.
Aust Endod J. 2007 Dec;33(3):112-8. doi: 10.1111/j.1747-4477.2007.00098.x.
Lateral root perforation unnoticed during post-space preparation, and followed by post cementation, can subsequently be challenging to diagnose in the labio-lingual plane due to the two-dimensional nature of conventional radiography. This paper demonstrates the application of a recently developed three-dimensional imaging system, cone beam computed tomography, in the diagnosis of iatrogenic root perforation. A clinical case is reported where labial post perforation in a maxillary central incisor occurring 15 years previously presented with a sinus tract and radiolucent lesion. Non-surgical retreatment and perforation repair using mineral trioxide aggregate was performed with the aid of an operating microscope. The sinus tract resolved with radiographic evidence of healing at 1-year recall.
在根管预备后未被察觉的侧穿，继而在桩核粘固后，由于传统放射成像的二维特性，随后在唇舌平面进行诊断可能具有挑战性。本文展示了一种最近开发的三维成像系统——锥形束计算机断层扫描（CBCT）在医源性牙根穿孔诊断中的应用。报告了一例临床病例，上颌中切牙唇侧桩核穿孔发生在15年前，表现为窦道和透射性病变。借助手术显微镜进行了非手术再治疗并使用三氧化矿物凝聚体修复穿孔。在1年的复查中，窦道消失，影像学显示愈合。
