清洁效率,碎片挤出和仪器分离在使用连续旋转,反向和最佳扭矩反向运动的根运河填充移除过程中:一个体外研究.
Tarek Abboud1, Mouhammad Al-Tayyan2, Hassan Achour1
1Department of Operative and Endodontic Dentistry, Faculty of Dentistry, Damascus University, Damascus, Syria.
European journal of dentistry
|January 20, 2026
概括
最佳扭矩反向运动 (OTR) 与连续旋转运动 (CRM) 和反向运动 (RM) 相比,在根运河再处理过程中增加了分离仪器的风险. 然而,在测试的运动中,在碎片挤出或残留物质清除效率方面没有发现显著差异.
科学领域:
- 牙周内科医院 牙周内科医院 牙周内科医院
- 牙科材料科学 牙科材料科学
背景情况:
- 根管重新处理的目的是去除堵塞材料和密封剂.
- 不同的文件运动动力学,包括连续旋转运动 (CRM),反向运动 (RM) 和最佳扭矩反向 (OTR) 运动,用于重新处理.
- 了解与每个运动相关的疗效和并发症对于临床成功至关重要.
研究的目的:
- 为了比较OTR运动与CRM和RM在去除根运河填充材料方面的有效性.
- 为了评估在不同运动类型的再处理过程中以apically挤出碎片的数量.
- 评估分离仪器 (SI) 作为并发症的发生率.
主要方法:
- 45个被冠冕下第一个前被阻塞,然后分为三组,使用CRM,RM或OTR运动进行重新处理.
- 应用式挤出碎片被称重,并使用ImageJ分析量化剩余的堵塞材料.
- 记录和统计分析了分离仪器的发生率.
主要成果:
- 与CRM和RM组相比,OTR动作组表现出与CRM和RM组相比,分离工具的发生率显著更高 (p=0.001).
- 在这三组人群中,在形挤压碎片的数量方面没有发现显著差异.
- 剩余堵塞材料的百分比在运动类型中也没有显著差异.
结论:
- 运动的选择 (OTR,CRM或RM) 不会显著影响根运河堵塞物质去除的有效性或形挤压碎片的数量.
- OTR运动与根运河再处理期间仪器分离的风险更高有关.
- 临床医生在选择OTR运动时应考虑分离仪器的风险增加.
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