Department of Restorative Dentistry, Faculdade de Odontologia de Araraquara, Univ Estadual Paulista, Araraquara, SP, Brazil.
Braz Oral Res. 2011 May-Jun;25(3):205-9. doi: 10.1590/s1806-83242011000300003.
The aim of this study was to evaluate the effectiveness of gutta-percha and Resilon in filling lateral root canals by using the Obtura II system. Root canals of artificial teeth were prepared using a standard protocol, and lateral canals were made in three thirds of the root canal. The root canals were filled with either Obtura gutta-percha (OB), Endo-points flow gutta-percha (ED), or Resilon (RE) by using the Obtura II system. The fillings were evaluated using digitized radiographs and analyzed by using Image Tool software. Outlines of the total areas of the lateral canals and the filled areas were used to determine the percentage of filling in each lateral canal. Data were analyzed with the Kruskal-Wallis and Dunn tests at a 5% significance level. RE and ED showed better results than OB did in the three thirds of the root canals. When the root canal thirds were compared, OB and RE were more effective in the cervical third than in the apical third (p < 0.05). In conclusion, Resilon and EndoFlow gutta-percha were effective in filling lateral canals by using the Obtura II system.
本研究旨在评估使用 Obtura II 系统时牙胶和 Resilon 在填充侧根管中的效果。使用标准方案预备人工牙根管，并在根管的三分之一处制作侧根管。使用 Obtura II 系统用 Obtura 牙胶（OB）、Endo-points flow 牙胶（ED）或 Resilon（RE）填充根管。使用图像工具软件对数字化射线照片进行评估和分析。使用侧根管的总面积和填充面积的轮廓来确定每个侧根管的填充百分比。使用 Kruskal-Wallis 和 Dunn 检验在 5%的显著水平下分析数据。RE 和 ED 在根管的三分之一处的效果优于 OB。当比较根管的三分之一时，OB 和 RE 在颈三分之一处比根尖三分之一处更有效（p<0.05）。总之，使用 Obtura II 系统时，Resilon 和 EndoFlow 牙胶在填充侧根管方面有效。
