Thirumalai Arun Kulandaivelu, Sekar Mahalaxmi, Mylswamy Sumitha
Department of Conservative Dentistry and Endodontics, SRM Dental College, Chennai, India.
J Conserv Dent. 2008 Jan;11(1):42-5. doi: 10.4103/0972-0707.43417.
The fracture of endodontic instruments is a procedural problem creating a major obstacle to normal routine therapy. The separated instrument, particularly a broken file, leads to metallic obstruction in the root canal and impedes efficient cleaning and shaping. When an attempt to bypass such a fragment becomes difficult, it should be retrieved by mechanical devices. Masserann kit is one such device for orthograde removal of intracanal metallic obstructions. These clinical cases demonstrate the usage of Masserann technique in removal of separated instruments in anterior and also the posterior teeth.
牙髓治疗器械折断是一个操作问题,给常规治疗造成了重大障碍。分离的器械,尤其是折断的锉,会导致根管内金属阻塞,妨碍有效的清理和成形。当试图绕过这样的碎片变得困难时,应使用机械装置将其取出。Masserann套件就是一种用于正向去除根管内金属阻塞物的装置。这些临床病例展示了Masserann技术在拔除前牙和后牙分离器械中的应用。