ProTaper手用镍钛器械临床应用体会.docVIP

ProTaper手用镍钛器械临床应用体会[摘要]目的:对比ProTaper手用镍钛锉与标准不锈钢K锉在根管预备中的临床疗效。方法:随机选择临床需要做根管治疗的后牙82例113颗患牙。实验组采用ProTaper手用镍钛锉冠下法进行根管预备,对照组采用ISO标准K和H型锉行逐步后退法预备。冷侧方加压法充填。评价根管预备的时间、术后反应以及根充效果。结果:实验组预备时间少于对照组;根管治疗术中反应实验组小于对照组;根管充填适填率实验组高于对照组。结论:ProTaperr缩短根管预备时间,提高工作效率,减少术后疼痛,根充质量高。 [关键词]根管预备;ProTaper手用镍钛锉;不锈钢器械 [中图分类号]R783 [文献标识码]A [文章编号]1008-6455(2010)05-0739-02 Experience of clinical application with proTaper hand nitinol file in root canal preparation DING Qun,JING Shuan-rang,SHI Feng-wei (Baoji Hospital of Stomatology,Baoji 721001,Shaanxi,China) Abstract:ObjectiveTo compare the clinical effect of root canal preparation by using hand nitinol file and stainless steel file.Methods113 teeth of 82 patients required root canal therapy were included randomly in this study.Experimental group was prepared by ProTaper files with crown down technique.Control group was prepared by stainless steel files with step-back technique. The root canals were filled with lateral condensation technique.The following parameters were evaluated:preparation time,postoperative reactions and curative effect.ResultsExperimental group had less preparation time and preoperative reactions than control group,and had higher incidence of proper filling than control group. Conclusion ProTaper nitinol file prepared root canal rapidly and low incidence of pain and had high quality of root canal filling. Key words:root canal preparation;ProTaper hand nitinol file;stainless steel file ProTaper镍钛器械是一种新型的根管预备器械,其最突出的特点是同一器械的刃部具有多种变化的锥度,这些独特的设计赋于ProTaper器械卓越的柔韧性、切削能力和安全性。而传统的不锈钢锉因其材质、恒定小锥度以及预备技术等原因,在预备根管时常易导致根管偏移、根尖孔的敞开、侧穿、根管内台阶形成等并发症,这些并发症使根管形态恶化而难以被彻底充填[1],此外根管预备费时费力,患者亦很不舒服。本实验通过不锈钢锉逐步后退法,手用ProTaper冠下法进行根管预备,探讨两种根管预备方法的临床疗效。 1资料和方法 1.1 一般资料:随机选择门诊病例82例(113颗患牙),男38例,女44例,年龄17～64岁,前磨牙31颗,磨牙82颗。纳入标准:根尖孔已完全形成需要做根管治疗的恒牙;排除重度牙周病、纵折牙以及全身情况较差和不配合者。实验分为两组,实验组:40例56颗患牙144个根管,对照组:42例57颗患牙152个根管;实验组采用ProTaper手用镍钛锉以冠下法预备根管,对照组采用ISO标准K型锉以逐步后退法预备根管。 1.2 器械与材料:ProTaper手用镍钛锉、ISO标准不绣钢K和H型根管锉(10#～40#)、GG钻、普通