生物根管封闭剂iRoot SP在根管根尖封闭中的应用评价

目的:分析生物根管封闭剂iRoot SP在扁形根管根尖封闭中的性能,为临床工作提供指导.方法:取48颗根管的近远中径与颊舌径之比小于0.5的单根管离体前磨牙,根管预备后,随机分为A、B、C3组,每组各16颗.分别选用Vitapex (A组)、AH Plus(B组)、iRoot SP(C组)作为根管封闭剂,结合连续波热牙胶垂直充填技术进行根管充填.所有样本经根尖染料渗透实验,采用透明牙技术,比较3组离体牙微渗漏情况,评价iRoot SP在扁形根管根尖封闭中的性能.采用SPSS19.0软件包对数据进行统计学分析.结果:A组染料渗入深度显著大于B、C组,差异具有显著性(P＜0.05);B、C组染料渗入深度相比,无显著差异(P＞0.05).结论:iRoot SP和AH Plus在扁形形根管根尖封闭中的性能接近,效果优于Vitapex根管充填糊剂.

Study on the sealing ability of biological root canal sealer iRoot SP in root canal filling

PURPOSE:To investigate the sealing ability of biological root canal sealer iRoot SP in over-root canal filling.METHODS:After completion of root canal preparation,48 extracted human single-canal teeth were used.The ratio of mesio-distal root canal diameter to bucco-lingual diameter was less than 0.5.The teeth were randomly divided into group A,B and C.The root canals were obturated with root canal filling agent (group A),AH Plus (group B) and iRoot SP (group C),respectively;the apical leakage was evaluated by dye penetration method and transparent teeth technique.The data were analyzed using SPSS 19.0 software package.RESULTS:The depth of dye penetration in group A was significantly higher than that in group B and C (P＜0.05);there was no significant difference in the depth of dye penetration between group B and group C (P＞0.05).CONCLUSIONS:The apical sealing ability of iRoot SP is equivalent to AH Plus in oval-root canal,both are better than that of root canal filling agent.