Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 2009
Objective. The objective of this study was to investigate the sealing properties of 2 warm vertic... more Objective. The objective of this study was to investigate the sealing properties of 2 warm vertical compaction techniques (BeeFill 2in1, System B/Obtura II) in comparison with single-cone and cold laterally compacted gutta-percha. Study design. The root canals of single-rooted human teeth were prepared by using Mtwo rotary files and divided into 4 groups (n ϭ 10/group) with respect to the filling technique tested: Group 1, cold laterally compacted gutta-percha ϩ AH-26; Group 2, single-cone tapered Mtwo gutta-percha ϩ AH-26; Group 3, System B/ObturaII ϩ AH-26; Group 4, BeeFill 2in1 ϩ 2seal. The leakage of specimens was measured using a fluid-filtration method after 1 and 2 weeks. The data were analyzed statistically with 2-way repeated measures ANOVA (P ϭ .05). Results. After 1 week, the System B/Obtura II group showed the greatest amount of leakage (P Ͻ .05) compared with the other test groups that had similar levels of fluid conductance (P Ͻ .05). By the end of the second week, the BeeFill group yielded the greatest amount of leakage (P Ͻ .05). Compared with their 1-week values, the fluid conductance of all test groups decreased significantly (P Ͻ .05). Conclusion. The apical sealing efficiency of System B/Obtura II and BeeFill were inferior to the other obturation techniques after 2-week fluid conductance testing in vitro. (Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2009; 108:e51-e55) Donation of the BeeFill 2in1 and Mtwo instruments by Sarp Dental (VDW Antaeos) is acknowledged gratefully.
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