氧化锌丁香油基质根管封闭剂的根尖封闭性能研究  

Experimental Study on Apical Sealing Ability of Zinc Oxide-Eugenol(ZOE) based Sealers

作　　者：杨俊[1] 童红敏[1] 葛新[1] 张国晴[2] 程汉庭[2] 樊明文[1] 

机构地区：[1]武汉大学口腔医学院高新技术中心,湖北武汉430079 [2]武汉大学口腔医学院口腔药物材料厂

出　　处：《口腔医学研究》2012年第9期897-899,共3页Journal of Oral Science Research

摘　　要：目的:比较几种氧化锌丁香油基质根管封闭剂的根尖微渗漏情况,评价其封闭性能。方法:选择因正畸原因拔除的健康单根管前磨牙60颗,随机分成7个实验组(每组8颗)和2个对照组(每组2颗)。实验组分别采用6种氧化锌基质根管封闭剂(武汉大学口腔医院材料厂研制的1、2、3、4号氧化锌类糊剂,Pulp canal sealer糊剂及Endomethasone ivory糊剂)和一种树脂类封闭剂(Ah-Plus)作为根充糊剂,各组均采用冷牙胶侧方加压法充填根管。充填后采用印度墨汁染色处理,体式显微镜观察染料渗入的深度,进行统计分析比较。结果:7个实验组之间微渗漏情况无显著性差异,但Endomethasone ivory的微渗漏情况明显大于Ah-Plus。结论:在本实验条件下,研制的氧化锌基质根管封闭剂具有其他几种封闭剂同样的根尖封闭效果。Objective： To compare the apical sealing ability of different Zinc Oxide--Eugenol （ZOE） based sealers with Ah--Plus sealers. Methods： Sixty premolars with one root canal extracted for orthodontic therapy were divided as follows： number 1, 2, 3, 4 ZOE sealers, Pulp canal sealers, Endomethasone ivory sealers, Ah--Plus sealers, positive group and negative group. Each tooth was obturated with cold lateral condensation. After dyeing in India ink, the extent of apical dye penetration was measured with a stereomicroscope. Results： No statistical differences were ohserved among these seven groups, hut the microleakge of Endomethasone ivory sealers were significantly lager than that of Ah--Plus sealers. Conclusion： In the present experimental conditions, the developed ZOE based root canal sealers have the same apical sealing ability as several other sealers.

关 键 词：根管封闭剂 根尖微渗漏 

分 类 号：R781.05[医药卫生—口腔医学]