Shin Su-Jung, Kim Hee-Kyoung, Jung Il-Young, Lee Chan-Young, Lee Seung-Jong, Kim Euiseong
Department of Oral Biology and Oral Science Research Center, College of Dentistry, Yonsei University, Seoul, South Korea.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Mar;109(3):479-84. doi: 10.1016/j.tripleo.2009.10.050.
This study evaluated the efficacy of EndoVac system in comparison with that of a conventional needle irrigation method when the root canals were enlarged to various sizes.
Sixty-nine single-rooted teeth were divided into 3 groups according to the root canal irrigation system (24G and 30G needle and EndoVac). Each group was divided into 3 subgroups according to the MAF size (#25, #40, and #60). Four-micron-thick serial sections were prepared at 1.5 and 3.5 mm from the apical level and photographs were taken for the analysis. The influence of the irrigation system and apical size was evaluated using a 1-way ANOVA test and Tukey's test (P < .05).
At both levels, significant differences were detected between EndoVac system and conventional needle irrigation in removing debris (P < .05). The relationship between the MAF size and irrigation efficacy was found to have a positive relationship (P < .05).
EndoVac left significantly less debris behind than the conventional needle irrigation methods. Although all 3 irrigation methods resulted in clean root canals because the percentage occupied by remaining debris was very low in our specimens, larger apical instrumentation seemed to improve apical root canal debridement.
本研究评估了在根管扩大至不同尺寸时，EndoVac系统与传统针管冲洗方法相比的疗效。
根据根管冲洗系统（24G和30G针管以及EndoVac）将69颗单根牙分为3组。每组根据MAF尺寸（#25、#40和#60）再分为3个亚组。在距根尖水平1.5和3.5毫米处制备4微米厚的连续切片，并拍照进行分析。使用单向方差分析和Tukey检验（P < 0.05）评估冲洗系统和根尖尺寸的影响。
在两个水平上，EndoVac系统与传统针管冲洗在清除碎屑方面均存在显著差异（P < 0.05）。发现MAF尺寸与冲洗效果之间存在正相关关系（P < 0.05）。
EndoVac系统留下的碎屑明显少于传统针管冲洗方法。尽管所有3种冲洗方法均使根管清洁，因为在我们的标本中残留碎屑所占百分比非常低，但更大的根尖预备似乎可改善根尖根管清创效果。
