摘要
目的:应用类同轴相衬CT(PCCT)评估3种根管封闭剂(AHPlus、iRootSP、GuttaFlow)结合热垂直加压充填技术的根充效果。方法:选取完整离体前磨牙32颗,随机分为4组,A组不用任何封闭剂,B组AHPlus根管封闭剂,C组iRootSP根管封闭剂,D组GuttaFlow根管封闭剂,4组均使用相同的根管预备和根管充填方法。待封闭剂完全固化后行PCCT成像检测,测量根尖1/3未充填空隙的百分比,定量分析根管充填的效果。结果:根尖1/3未充填空隙体积百分比A组大于B、C、D组(P<0.01),B组大于C组和D组,D组大于C组(P<0.05)。结论:iRootSP根尖封闭性优于GuttaFlow和AHPlus,而Gut-taFlow根尖封闭性优于AHPlus。
Objective: To evaluate the effect of root canal obturation with three sealers combined with vertical condensation technique. Methods: 32 extracted premolars were selected and randomly divided into 4 groups. The same root canal preparation and filling methods were used for the 4 groups. Before filing, the root canals of group A were treated without sealer, those of group B, C and D were treated with AH plus, iRoot SP and GuttaFlow respectively. PCCT imaging experiment was carried out after the sealant was completely cured. Slides were collected and 3 D images were reconstructed. The void of the canals at 1/3 of root apex was measured and compared among groups. Results: The percentage of void volume of group A was the highest(P<0.01), that of group C was the lowest(P<0.05), that of group D was lower than that of group B(P<0.05). Conclusion: The sealing performance of iRoot SP is better than that of GuttaFlow and AH Plus, that of GuttaFlow is superior to AH Plus.
作者
陈宁
张琦
聂海丹
吴丽更
CHEN Ning;ZHANG Qi;NIE Haidan;WU Ligeng(Department of Preventive and Pediatric Den-tistry,School of Stomatology,Tianjin Medical University,China,300070;Department of Stomatology,Zhejiang Hospital,Hangzhou;Department of Endodontics,School of Stomatology,Tianjin Medical University)
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2020年第4期623-627,共5页
Journal of Practical Stomatology
关键词
同步辐射
相衬成像
三维重建
根管治疗术
根管封闭剂
Synchrotron radiation
In-line phase-contrast computed tomography
Three-dimensional reconstruction
Root canal therapy
Root canal sealer
