CAJ | 학술논문

预防镍钛器械在根管预备过程中出现因周期性疲劳及扭转疲劳导致的器械分离、改良镍钛器械的根管成形能力及减少在预备过程中出现的根管偏移等，对于提高根管治疗的成功率及防止医源性并发症的发生有重要意义。近年来，镍钛器械的往复式运动被认为可有效提高器械使用的安全性，延长其使用寿命。这种新型的运动模式较传统的持续旋转有哪些优势及缺陷引起了学者的广泛关注。本文就往复式运动的研究进展作一综述。
예방얼태기계재근관예비과정중출현인주기성피로급뉴전피로도치적기계분리、개량얼태기계적근관성형능력급감소재예비과정중출현적근관편이등，대우제고근관치료적성공솔급방지의원성병발증적발생유중요의의。근년래，얼태기계적왕복식운동피인위가유효제고기계사용적안전성，연장기사용수명。저충신형적운동모식교전통적지속선전유나사우세급결함인기료학자적엄범관주。본문취왕복식운동적연구진전작일종술。
The prevention of the separation of NiTi instruments in root canal preparation process due to cyclic fatigue and torsional stress and the promotion of the instuments' shaping abilitity are significant to improve the quality of root canal treatment and to reduce iatrogenic complications. The reciprocating motion of NiTi instruments proposed in recent years has been proved to improve the safety of instrumentation and to prolong the files' lifespan. The advantages and shortcomings of reciprocation compared with the traditional continuous rotation motion have attracted the wide attention of scholars. In this paper, the recent research progresses in reciprocation are reviewed.