In vitro comparison of corono-apical microleakage of Enterococcus faecalis using three different filling techniques: lateral, vertical and gutta-percha carrier-based, in single-root premolars
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Abstract
The purpose of this study was to compare leakage of Enterococcus faecalis in three filling techniques: lateral condensation, vertical condensation and gutta-percha carrier-based obturation. Forty single-root premolars were decoronated and prepared until Reciproc R50.
A modified Torabinejad model was used consisting of a split chamber where E. faecalis was placed in the upper chamber could reach the lower chamber only through the filled canal. The Kruskal-Wallis test showed that core-carrier gutta-percha obturation and vertical obturation groups were statistically superior to lateral obturation group. No statistically significant difference was found between the lateral obturation and positive control, nor between core-carrier technique and vertical obturation (p > 0.05). In conclusion, core-carrier gutta-percha obturation group showed greater resistance to filtration of E. faecalis but it was not statistically superior to vertical condensation group.
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