CAJ | 학술논문

根管预备（根管清理和根管成形）是根管治疗的关键步骤。为了达到良好的根管预备目的，各种先进器械和新型材料不断涌现。从标准不锈钢根管锉到旋转镍钛锉系统的相继应用，根管预备的质量和效率得到了大幅的提高；然而这两种临床常用的器械并没有完全达到根管预备的目标，尤其在三维影像上仍存在着明显的缺陷。自调节根管锉（SAF）这种新型镍钛器械的诞生，为根管预备技术带来了突破。其全新的设计克服了传统根管锉在柔韧性和可塑性等方面的不足，其自带的冲洗装置实现了根管冲洗和成形的同步操作，根管清理更为完善。本文就SAF的特性、力学性能和临床应用等研究进展作一综述。
근관예비（근관청리화근관성형）시근관치료적관건보취。위료체도량호적근관예비목적，각충선진기계화신형재료불단용현。종표준불수강근관촤도선전얼태촤계통적상계응용，근관예비적질량화효솔득도료대폭적제고；연이저량충림상상용적기계병몰유완전체도근관예비적목표，우기재삼유영상상잉존재착명현적결함。자조절근관촤（SAF）저충신형얼태기계적탄생，위근관예비기술대래료돌파。기전신적설계극복료전통근관촤재유인성화가소성등방면적불족，기자대적충세장치실현료근관충세화성형적동보조작，근관청리경위완선。본문취SAF적특성、역학성능화림상응용등연구진전작일종술。
Root canal preparations, including the cleaning and shaping of the root canal, are a key step in the root canal treatment process. Advanced equipment and new materials have continuously emerged to better achieve this step. From standard stainless steel files to the use of nickel-titanium rotary file systems, the quality and efficiency of root canal preparation have greatly improved. However, while the resulting root canal filling radiographs are impressive, the third dimension of the root canal is commonly ignored. A new nickel-titanium instrument, the self-adjusting file(SAF), was recently developed. This tool is a breakthrough in root canal preparation technology because its unique design overcomes the lack of flexibility and plasticity of traditional files. As the file features its own washing device, the synchronous operation of root canal cleaning and shaping may be realized, thereby achieving more efficient root canal preparations. This study discusses research progress on the characteristics, mechanical properties, and clinical applications of SAF.