Parashos Peter, Messer Harold H
School of Dental Science, Faculty of Medicine, Dentistry and Health Sciences, University of Melbourne, Melbourne, Victoria, Australia.
J Endod. 2006 Nov;32(11):1031-43. doi: 10.1016/j.joen.2006.06.008.
The fracture of endodontic instruments is a procedural problem creating a major obstacle to normally routine therapy. With the advent of rotary nickel-titanium (NiTi) instruments this issue seems to have assumed such prominence as to be a considerable hindrance to the adoption of this major technical advancement. Considerable research has been undertaken to understand the mechanisms of failure of NiTi alloy to minimize its occurrence. This has led to changes in instrument design, instrumentation protocols, and manufacturing methods. In addition, factors related to clinician experience, technique, and competence have been shown to be influential. From an assessment of the literature presented, we derive clinical recommendations concerning prevention and management of this complication.
牙髓治疗器械的折断是一个操作问题，给常规治疗带来了重大障碍。随着旋转镍钛（NiTi）器械的出现，这个问题似乎变得非常突出，严重阻碍了这一重大技术进步的应用。为了了解镍钛合金的失效机制以尽量减少其发生，人们进行了大量研究。这导致了器械设计、操作方案和制造方法的改变。此外，临床医生的经验、技术和能力等因素也被证明具有影响力。通过对所呈现文献的评估，我们得出了关于预防和处理这种并发症的临床建议。
