Cho Changgi, Jo Hyo Jin, Ha Jung-Hong
Department of Conservative Dentistry, School of Dentistry, Kyungpook National University, Daegu, Korea.
Restor Dent Endod. 2021 Sep 23;46(4):e50. doi: 10.5395/rde.2021.46.e50. eCollection 2021 Nov.
Although several techniques have been proposed to remove fiber-reinforced composite (FRC) post, no safe and efficient technique has been established. Recently, a guided endodontics technique has been introduced in cases of pulp canal obliteration. This study describes 2 cases of FRC post removal from maxillary anterior teeth using this guided endodontics technique with a dental operating microscope. Optically scanned data set from plaster cast model was superimposed with the data set of cone-beam computed tomography. By implant planning software, the path of a guide drill was selected. Based on them, a customized stent was fabricated and utilized to remove the FRC post. Employing guided endodontics, the FRC post was removed quickly and safely with minimizing the loss of the remaining tooth structure. The guided endodontics was a useful option for FRC post removal.
尽管已经提出了几种去除纤维增强复合材料（FRC）桩的技术，但尚未建立安全有效的技术。最近，在牙髓腔闭塞的病例中引入了引导式牙髓治疗技术。本研究描述了2例使用牙科手术显微镜通过这种引导式牙髓治疗技术从上颌前牙中取出FRC桩的病例。将石膏模型的光学扫描数据集与锥形束计算机断层扫描数据集进行叠加。通过种植体规划软件，选择引导钻的路径。在此基础上，制作并使用定制的支架来取出FRC桩。采用引导式牙髓治疗技术，快速安全地取出了FRC桩，同时将剩余牙体结构的损失降至最低。引导式牙髓治疗技术是去除FRC桩的一种有用选择。
