Wigler Ronald, Srour Yara, Wilchfort Yuval, Metzger Zvi, Kfir Anda
Department of Endodontology, The Goldschleger School of Dental Medicine, Tel Aviv University, P.O. Box 39040, Tel Aviv 6997801, Israel.
Private Clinic, Eilabun 1697200, Israel.
Dent J (Basel). 2024 Feb 26;12(3):51. doi: 10.3390/dj12030051.
The aim of this study was to compare the cleaning efficacy of three irrigant activation devices with a control of non-activated syringe and needle irrigation in curved root canals. Sixty human curved roots were endodontically prepared and divided into four groups (n = 15) with similar root curvature distributions. Final irrigation using 4% NaOCl was performed with a syringe and needle (30-G) alone, or with Eddy sonic powered irrigation system (polymeric tip #0.25/0.06), Endosonic ultrasonic activation (polymeric tip #0.25/0.03), or Irrisafe ultrasonic activation (stainless-steel tip, #0.25/0.00). SEM was used to evaluate cleaning efficacy, employing five-score systems for debris and smear layer. While no significant difference in debris removal was observed between Endosonic or Irrisafe activation and non-activated irrigation, Eddy sonic powered irrigation system significantly improved debris removal in the apical third of curved root canals. Smear layer removal was effective in coronal and mid-root sections for all groups but less so in the apical third. Thus, Eddy sonic powered irrigation system demonstrated higher efficacy in removing debris from the apical third of curved root canals compared with non-activated syringe and needle irrigation. However, all three irrigant activation systems exhibited no difference from the non-activated control in smear layer removal.
本研究的目的是比较三种冲洗液激活装置与未激活的注射器和针头冲洗（作为对照）在弯曲根管中的清洁效果。选取60颗人弯曲牙根进行根管预备，并根据相似的牙根弯曲分布情况分为四组（每组n = 15）。使用4%次氯酸钠进行最终冲洗时，分别单独使用注射器和针头（30G），或采用涡旋声波动力冲洗系统（聚合物尖端#0.25/0.06）、Endosonic超声激活（聚合物尖端#0.25/0.03）或Irrisafe超声激活（不锈钢尖端，#0.25/0.00）。采用扫描电子显微镜（SEM）评估清洁效果，对碎屑和玷污层采用五分制评分系统。虽然在Endosonic或Irrisafe激活冲洗与未激活冲洗之间，未观察到碎屑清除方面的显著差异，但涡旋声波动力冲洗系统显著改善了弯曲根管根尖三分之一处的碎屑清除情况。所有组在冠部和根管中部的玷污层清除效果良好，但在根尖三分之一处则较差。因此，与未激活的注射器和针头冲洗相比，涡旋声波动力冲洗系统在清除弯曲根管根尖三分之一处的碎屑方面显示出更高的效果。然而，在玷污层清除方面，所有三种冲洗液激活系统与未激活的对照组相比均无差异。
