Fragachán Mauro, Pons Montserrat, Barriuso Eduardo, Frigola Jaime, Ballester Maria-Lluïsa, Berástegui Esther
DDS. Master in Advanced and Experimental Endodontics. University of Barcelona, Spain.
DDS. Professor on Master's Program in Advanced and Experimental Endodontics. University of Barcelona.
J Clin Exp Dent. 2018 Jul 1;10(7):e702-e708. doi: 10.4317/jced.54806. eCollection 2018 Jul.
The aim of this study was to evaluate obturation depth and volume by means of micro-CT when filling lateral canals.
Thirty single-rooted teeth were used. After instrumentation, three artificial lateral canals were created on each mesial and distal surface (one on each third). The samples were then separated randomly into three groups according to the obturation technique used (n=10): lateral condensation (Group 1), Tagger's hybrid technique (Group 2) and GuttaCore™ (Group 3). Samples were scanned and data was processed with Avizo software. Depth and volume of the infilling were measured in each lateral canal. Values were expressed as percentages and were analyzed using the Kruskal-Wallis test.
Mean depth showed statistically significant differences between Group 3 and Groups 1 (=0.001) and 2 (=0.003), whereas no significant difference was found between Groups 1 and 2 (≈1). As for mean volume, significant differences were found between Group 3 and Groups 1 (=0.01) and 2 (=0.003) but no differences were found between Groups 1 and 2 (=1.00).
GuttaCore provided the best lateral canal sealing among the three techniques compared. Lateral canals, Micro-CT, obturation.
本研究的目的是通过显微CT评估侧支根管充填时的充填深度和体积。
使用30颗单根牙。根管预备后，在每个近中和远中面制备3个人造侧支根管（每个1/3处1个）。然后根据所使用的充填技术将样本随机分为3组（n = 10）：侧方加压充填法（第1组）、Tagger混合技术（第2组）和GuttaCore™（第3组）。对样本进行扫描，并用Avizo软件处理数据。测量每个侧支根管内充填物的深度和体积。数值以百分比表示，并使用Kruskal-Wallis检验进行分析。
第3组与第1组（P = 0.001）和第2组（P = 0.003）之间的平均深度显示出统计学上的显著差异，而第1组和第2组之间未发现显著差异（P≈1）。至于平均体积，第3组与第1组（P = 0.01）和第2组（P = 0.003）之间存在显著差异，但第1组和第2组之间未发现差异（P = 1.00）。
在所比较的三种技术中，GuttaCore在侧支根管封闭方面效果最佳。侧支根管、显微CT、充填
