Taira Yohsuke, Sawase Takashi
Department of Applied Prosthodontics, Graduate School of Biomedical Sciences, Nagasaki University, Nagasaki, Japan.
J Oral Implantol. 2012 Apr;38(2):165-9. doi: 10.1563/AAID-JOI-D-10-00162. Epub 2011 May 16.
Fracture of abutment screw is a serious prosthodontic complication. When the abutment screw is fractured at the junction of the screw shank and screw thread, removal of the fractured screw fragment from the screw hole can be difficult. This article describes a modified technique for removing the failed abutment screw with a custom guide tube and tungsten carbide bur. The failed screw can be removed speedily without damaging the screw hole of the implant body or the screw threads.
基台螺丝折断是一种严重的口腔修复并发症。当基台螺丝在螺丝杆与螺纹的交界处折断时，从螺丝孔中取出折断的螺丝碎片可能会很困难。本文介绍了一种使用定制导向管和碳化钨车针取出折断基台螺丝的改良技术。折断的螺丝能够快速取出，而不会损坏种植体的螺丝孔或螺纹。
