Department of Endodontics, Hebrew University and Hadassah Faculty of Dental Medicine, Jerusalem, Israel.
J Endod. 2011 Jun;37(6):881-7. doi: 10.1016/j.joen.2011.02.036. Epub 2011 Apr 19.
The Self-Adjusting File (SAF) system (ReDent-Nova, Ra'anana, Israel) has been recently introduced for the simultaneous instrumentation and irrigation of root canals. The SAF is claimed to adapt itself three dimensionally to the root canal, including its cross-section. It is operated with a continuous flow of sodium hypochlorite that is delivered into the root canal through the hollow file and claimed to be activated by sonic agitation of the irrigant. Our aim was to present for the first time clinical cases prepared with the SAF system and to describe a clinical classification of canals, according to their difficulty, with recommendations for endodontic treatment sequences for each category.
This report is based on the experience of a single endodontist, who used the system to treat more than 50 consecutive primary endodontic cases over the prior 8 months.
A clinical classification was developed which enabled the operator to select a treatment protocol for easy and optimal glide path preparation to be effectively used with the SAF file in the various root canals encountered in the clinical environment.
Clinical classification of canal difficulty makes root canal treatment sequences with the SAF simple and predictable. Many types of cases can be treated with the SAF system although a novice user is advised to advance slowly along the learning curve from simpler to more complicated canals.
最近推出了自调整锉（SAF）系统（ReDent-Nova，Ra'anana，以色列），用于同时根管预备和冲洗。据称，SAF 可以三维自适应根管，包括其横截面。它通过空心锉输送次氯酸钠的连续流动来操作，并声称通过冲洗剂的超声振动来激活。我们的目的是首次展示使用 SAF 系统预备的临床病例，并根据其难度对根管进行临床分类，并为每个类别推荐根管治疗序列。
本报告基于一位牙髓病医生的经验，他在过去 8 个月中使用该系统治疗了 50 多例连续的初级牙髓病例。
开发了一种临床分类方法，使操作者能够选择一种治疗方案，以便在临床环境中遇到的各种根管中有效地使用 SAF 锉进行简单和优化的滑入路径预备。
根管难度的临床分类使 SAF 的根管治疗序列变得简单且可预测。尽管建议新手用户从简单的根管开始逐渐沿着学习曲线向更复杂的根管推进，但 SAF 系统可以治疗许多类型的病例。
