期刊
JOURNAL OF ENDODONTICS
卷 43, 期 4, 页码 638-642出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.joen.2016.11.027
关键词
Micro-computed tomography; obturation techniques; root canal filling; voids
资金
- Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) process [2013/00332-3]
Introduction: The objective of this study was to assess the presence of voids in mesial root canals of mandibular molar teeth obturated by using the single-cone (SC) and continuous wave of condensation (CWC) obturation techniques, and results were analyzed by using micro computed tomography. Methods: Twenty-four mandibular molars with fully developed roots and mesial root curvature ranging from 25 degrees to 35 degrees were instrumented by using Reciproc R25 files, and then they were obturated by using the SC and CWC techniques. Specimens were scanned before and after obturation for micro computed tomography analysis (voxel size, 17.42 mu m). After volumetric analysis and tridimensional reconstruction of the root canals, data were analyzed by using analysis of variance and the Tukey test. Results: No significant differences were observed between the 2 techniques in terms of total percentage volume of voids: CWC = 3.91% +/- 0.72%; SC = 6.52% +/- 1.16% (P > .05). Only in the cervical third, CWC showed a significantly lower percentage of voids when compared with SC, namely 2.86% +/- 0.94% vs 8.00% +/- 1.86%, respectively (P < .05). Conclusions: The percentage volume of voids was similar in the 2 groups and was influenced by the obturation technique only in the cervical third.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据