在下颌磨牙中，由2根冲洗针和一个多频超声系统产生的根尖压力。
apical pressure created by 2 irrigation needles and a multisonic system in mandibular molars.
作者信息
Ordinola-Zapata Ronald, Crepps Joseph T, Arias Ana, Lin Fei
机构信息
Division of Endodontics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA.
Conservative Dentistry Department, School of Dentistry, Universidad Complutense de Madrid, Madrid, Spain.
出版信息
Restor Dent Endod. 2021 Feb 8;46(1):e14. doi: 10.5395/rde.2021.46.e14. eCollection 2021 Feb.
OBJECTIVES
The aim of this study was to evaluate the apical pressure generated by 2 endodontic irrigation needles and the GentleWave system in mandibular molars.
MATERIALS AND METHODS
The mesial and distal root canals of 12 mandibular molars were irrigated with a 30-gauge close-end needle or with a 30-gauge open-end needle. Procedures were performed in the mesial and distal canals. The GentleWave procedure and irrigation at 1 mm from the apex in the distal roots using an open-end needle were used, respectively, as negative and positive controls. The apical pressure was measured using a data acquisition pressure setup. Apical pressure exerted by the different needles in the 2 different canal types was statistically compared using 2-way analysis of variance.
RESULTS
Significant differences were found in the apical pressure for both needles and the canal type. The lowest values were obtained with close-end needles and in mesial canals. Negative apical pressure values were obtained using GentleWave.
CONCLUSIONS
The needle and the canal type influenced the apical pressure. The GentleWave procedure produced negative apical pressure.
目的
本研究旨在评估2种根管冲洗针及GentleWave系统在下颌磨牙中产生的根尖压力。
材料与方法
用30号封闭端针或30号开放端针冲洗12颗下颌磨牙的近中根管和远中根管。操作在近中根管和远中根管中进行。分别采用GentleWave操作和使用开放端针在远中根管距根尖1 mm处冲洗作为阴性和阳性对照。使用数据采集压力装置测量根尖压力。采用双向方差分析对不同针在2种不同根管类型中施加的根尖压力进行统计学比较。
结果
在针和根管类型的根尖压力方面均发现显著差异。封闭端针和近中根管获得的压力值最低。使用GentleWave获得了负的根尖压力值。
结论
针和根管类型影响根尖压力。GentleWave操作产生负的根尖压力。
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