Sealing Efficiency of BeeFill2in1,System B/Obtura II,Single-Cone and Lateral Compaction Techniques

Methods: 40 freshly-extracted, single-rooted mandibular premolar teeth were used. The tooth crowns were sectioned horizontally to obtain a standardized root canal length of 15 mm. The root canals were instrumented with rotary M two files (VDW, Munich, Germany) in the following sequence: 10.04, 15.05, 20.06, and 25.06. Root canals were irrigated with 10 ml % 2.5 NaOCl between each files. Final irrigation was performed with % 17 EDTA. Prepared roots were randomly divided into four groups (n=10) with respect to the filling technique tested: 1. Lateral compaction with .02 taper gutta-percha points, 2. Single-cone, 3. System B/Obtura, 4. BeeFill 2in1 warm vertical compaction. In all groups, AH-26 was used as a root canal sealer. The leakage of specimens was recorded at 7th day using the fluid filtration method. The data was statistically analyzed with non-parametric Kruskall–Wallis and Dunn's tests (p<0.05).

Results: There was no significant difference between the fluid conductance levels of roots filled with the cold lateral compaction, single cone and Beefil groups. Obturation of root canals with System B/Obtura yielded significantly higher fluid conductance values compared to other test groups.

Conclusions: Root canal fillings completed with cold lateral compaction, single cone and Beefil techniques result in similar fluid conductance values, and appear to provide better sealing efficiency compared to that achieved with System B/Obtura II.