iRoot SP用于直根管桩腔预备后根尖封闭性的研究  

The effects of post space preparation on the apical sealing ability of iRoot SP used for straight root canals

作　　者：邱真 朱洪光[2] 魏美荣[2] 白建文[2] QIU Zhen;ZHU Hongguang;WEI Meirong;BAI Jianwen(Department of Stomatology,Weifang Medical University,China,251053;Department of Stomatology,Weifang People's Hospital,Shandong Province)

机构地区：[1]潍坊医学院口腔医学院,261053 [2]潍坊市人民医院口腔科

出　　处：《实用口腔医学杂志》2019年第1期91-94,共4页Journal of Practical Stomatology

摘　　要：目的:评价iRoot SP对直根管桩腔预备的根尖封闭效果。方法:选取73颗离体直根管牙随机分为8组。A1和B1、A2和B2、A4组分别用AH Plus、iRoot SP、ZOE+热牙胶根充,A3组iRoot SP+单尖根充。C、D组为阳、阴性对照。A1-A4组行即刻桩腔预备; B1、B2组行延迟桩腔预备。染色后透明牙技术评价根尖微渗漏情况。结果:各组染料渗透深度比较A1、A2、A3组间,A1与B1,A2与B2组间比较无统计学意义(P> 0. 05),A4组和C组渗透长度大于A2组(P <0. 05)。结论:iRootSP和AH Plus的根尖封闭性能相同; iRoot SP结合热牙胶充填和结合单尖充填后即刻桩腔预备的根尖封闭性无明显差异。Objective: To evaluate the effects on the apical sealing ability of iRoot SP used for straight root canals. Methods: 73 extracted human teeth with straight roots were randomly assigned to 8 groups. The root canals in groups A3 was obturated with single gutta-percha cone. The others were obturated with thermoplasticized gutta-percha cones. The canals were filled with AH Plus( group A1 and B1),iRoot SP( group A2,A3 and B2) and ZOE( group A4). The post space was prepared either immediately after obturation( A1-A4) or 7 days later group( B1 and B2). The extent of dye penetration was measured by transparent dental technology. Results:There were no significant differences among A1-A3 groups,between group A1 and B1,A2 and B2,P > 0. 05. The dye penetration extent of group A4 and C was greater than that of group A2( P < 0. 05). Conclusion: iRoot SP and AH Plus have same performance on root canal seal. There was no significant difference between iRoot SP + thermoplasticized gutta-percha and iRoot SP + single gutta-percha cone for apical sealing.

关 键 词：桩腔预备 透明牙 微渗漏 根管治疗 

分 类 号：R781.05[医药卫生—口腔医学]