摘要
目的定量比较2种单支锉往复运动系统Reciproc和WaveOne与2种全序列旋转运动系统M3和ProTaper的根尖推出物和冠方带出物的差异,以减少约诊间痛的发生,提高根管治疗过程中患者的舒适度。方法将80颗离体下颌切牙随机分为4组,分别使用Reciproc、WaveOne、M3和ProTaper进行根管预备,收集根尖推出物和冠方带出物。采用SPSS 17.0统计软件进行分析。结果 Reciproc和WaveOne组的根尖推出量均少于M3和ProTaper组(P<0.05),4种根管预备系统冠方带出量之间的差异无统计学意义(P>0.05),根尖推出量和冠方带出量之间没有相关性(P>0.05)。牙齿工作长度与冠方带出量呈负性相关(P<0.05),与根尖推出量无关(P>0.05)。结论在根管预备过程中,所有根管预备系统均会从根尖孔推出碎屑和冲洗液。单支锉往复运动系统Reciproc和WaveOne的根尖推出量均比全序列旋转运动系统M3和ProTaper少。
Objective The aim of this study is to quantitatively compare the apical and coronal extrusions of two singlefile reciprocating systems(Reciproc and WaveOne) and two full-sequence rotaries(M3 and ProTaper) to decrease the flare-up and increase the comfort during the root canal treatment. Methods Eighty extracted mandibular anterior teeth were randomly assigned to four groups. The root canals were instrumented with Reciproc, WaveOne, M3 and ProTaper instruments, respectively. The apical and coronal extrusions were measured and analyzed using SPSS 17.0. Results Reciproc and WaveOne instruments produced significantly less apical extrusions than M3 and ProTaper instruments(P<0.05). However, there was no statistically significant difference in coronal extrusion(P>0.05). There was no statistically significant relationship between apical and coronal extrusions(P>0.05). The working length(WL) was negatively correlated with the coronal extrusion(P<0.05), but no significant relationship with the apical extrusion(P>0.05) was evident. Conclusion All of the systems caused apical extrusion during the root canal instrumentation. The use of reciprocating single-file systems resulted in less apical extrusion of debris than full-sequence rotary instruments.
作者
卢妍
吴宾
闫卉
Lu Yan;Wu Bin;Yan Hui(Dept. of Stomatology,Tianjin Nankai Hosipital,Tianjin 300100,China)
出处
《国际口腔医学杂志》
CAS
CSCD
2019年第5期503-508,共6页
International Journal of Stomatology
