国际口腔医学杂志

国际口腔医学杂志 ›› 2019, Vol. 46 ›› Issue (5): 503-508.doi: 10.7518/gjkq.2019084

• 牙体牙髓专栏 • 上一篇    下一篇

4种根管预备系统根尖推出物和冠方带出物的比较研究

卢妍(),吴宾,闫卉   

  1. 天津市南开医院口腔科 天津 300100
  • 收稿日期:2019-01-18 修回日期:2019-05-08 出版日期:2019-09-01 发布日期:2019-09-10
  • 通讯作者: 卢妍 E-mail:dentist_luyan@163.com
  • 作者简介:卢妍,住院医师,硕士,Email： dentist_luyan@163.com

Comparison of apical and coronal extrusions with the use of four kinds of engine-driven instrumentation systems

Lu Yan(),Wu Bin,Yan Hui   

  1. Dept. of Stomatology, Tianjin Nankai Hosipital, Tianjin 300100, China
  • Received:2019-01-18 Revised:2019-05-08 Online:2019-09-01 Published:2019-09-10
  • Contact: Yan Lu E-mail:dentist_luyan@163.com

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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。

关键词: 根管预备, 约诊间痛, Reciproc, WaveOne, 根尖推出物, 冠方带出物

Abstract:

Objective The aim of this study is to quantitatively compare the apical and coronal extrusions of two single-file 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.

Key words: root canal instrumentation, flare-up, Reciproc, WaveOne, apical extrusion, coronal extrusion

中图分类号: 

  • R781.33

图 1

收集根尖推出物装置的实验模型图 1：一次性注射器针头;2：离体牙;3：橡胶塞;4：Eppendorf小管;5：注射液玻璃瓶。"

图 2

收集冠方带出物装置的实验模型图 1：一次性注射器针筒;2：Eppendorf小管;3：EndoActivator;4：机动根管预备系统。"

表 1

根管预备后各组离体牙根尖孔直径和根管锥度"

组别 样本数 根尖孔直径/mm 根管锥度
Reciproc 20 0.25 0.08
WaveOne 20 0.25 0.08
M3 20 0.25 0.06
ProTaper 20 0.25 0.08

图 3

收集根尖推出物的Eppendorf小管"

图 4

收集冠方带出物的Eppendorf小管"

表 2

4组根管预备系统根尖推出量和冠方带出量的组间比较"

分组 n 根尖推出量/g 冠方带出量/g WL/mm
Reciproc 20 0.002 50±0.001 52 0.011 19±0.001 29 20.725 0±2.425 1
WaveOne 20 0.002 19±0.001 45 0.010 53±0.001 02 21.050 0±1.723 7
M3 20 0.004 69±0.001 53 0.010 84±0.001 06 20.325 0±2.040 9
ProTaper 20 0.004 86±0.002 16 0.011 51±0.002 47 20.500 0±1.986 8

表 3

4组根管预备系统两两比较的P值"

组间比较 根尖推出量 冠方带出量 WL
Reciproc与WaveOne 0.561 0.191 0.619
Reciproc与M3 <0.001* 0.486 0.541
Reciproc与ProTaper <0.001* 0.521 0.731
WaveOne与M3 <0.001* 0.537 0.269
WaveOne与ProTaper <0.001* 0.053 0.401
M3与ProTaper 0.752 0.183 0.789

表 4

根尖推出量、冠方带出量和工作长度之间的相关性分析"

组间比较 相关系数r P值
根尖推出量与冠方带出量 0.201 0.074
根尖推出量与WL -0.209 0.063
冠方带出量与WL -0.235 0.036*
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