摘要
目的评价3种根充糊剂的根管封闭性能。方法收集新鲜拔除的人前牙100颗,随机分为A、B、C3个实验组(每组30颗牙齿)和D、E2个对照组(每组5颗牙齿),A、B、C组分别采用Vitapex糊剂、AH-plus糊剂、氧化锌丁香油(ZOE)糊剂加牙胶尖侧压充填根管,D组为阳性对照组,E组为阴性对照组。牙齿用2%甲基兰溶液浸泡,脱矿使牙齿透明,在根管显微镜下测量染料渗入根管的长度。结果A、B、C组染料渗入长度分别为(0.57±0.56)mm、(0.79±0.96)mm、(1.07±1.12)mm,阳性对照组染料渗入根管全长,阴性对照组无染料渗入。A组与B、C组间染料渗入长度有显著性差异(P<0.01),B组与C组间染料渗入长度无显著性差异(P>0.05)。结论Vitapex糊剂根尖封闭性优于AH-plus糊剂与ZOE糊剂。
Objective To compare the apical microleakage of Vitapex （calcium hydroxide based paste） with that of AH-plus and zinc oxide eugenol sealer when used with laterally condensed gutta percha obturation technique. Methods One hundred single rooted human anterior teeth were instrumented and randomly divided into three experimental groups （A, B, C） of 30 teeth each and two control groups （D, E） of 5 teeth each. Group A was filled with laterally condensed gutta-percha using Vitapex as sealer. Group B was filled with laterally condensed gutta-percha using AH-plus as sealer. Group C was filled with laterally condensed gutta-percha using zinc oxide eugenol as sealer. Group D was the positive control. Group E was the negative control, which were coated with nail polish to entire root surface. Teeth were then suspended in 2% methylene blue. After this, teeth were demineralized dehydrated and cleared. Linear dye penetration was determined under stereomicroscope with calibrated eye piece. Results The mean dye penetration for group A, B, C were respectively （0.57±0.56） mm, （0.79±0.96） mm and （1.07±1.12） ram. Group D demonstrated maximum dye penetration. Group E showed no dye penetration. There was no statistically significant difference between group B and group C （P〉0.05）. However, there was statistically significant difference between group A and group B, C （P〈0.01）. Conclusion This study showed that Vitapex used as endodontic sealer material are better than AH-plus sealer and zinc oxide eugenol sealer.
出处
《华西口腔医学杂志》
CAS
CSCD
北大核心
2007年第3期257-259,共3页
West China Journal of Stomatology
基金
卫生部部属医疗机构临床学科重点资助项目(2004-2006)
关键词
根尖封闭
根充材料
微渗漏
根管显微镜
apical seal
endodontic material
microleakage
root canal microscope
作者简介
谷海晶（1974-），女，山东人，讲师，硕士
【通讯作者】凌均棨，Tel：020-83862621
