Aim: To compare bacterial leakage in root canals obturated with the modified single-cone, lateral
condensation, and continuous wave of condensation techniques.
Methods: Distobuccal root
canals of maxillary molars were shaped up to ProTaper F2 and obturated with modified singlecone,
lateral condensation or continuous wave of condensation technique. Two-chamber bacterial
model using
Enterococcus faecalis
was employed for bacterial leakage evaluation for 30 days.
The chi-square test was applied to evaluate differences between turbid and non-turbid samples,
and the Kruskal-Wallis test was used for evaluating the time necessary for microleakage. A
significance level of 5% was set for all analyses.
Results: The modified single-cone technique
showed leakage in 73.3% of samples, lateral condensation in 66.6%, and continuous wave of
condensation in 53.3%, but there were no significant differences among the groups (p>0.05).
Conclusions: It can be concluded that the modified single-cone technique shows similar sealing
efficacy to that of lateral condensation and continuous wave of condensation technique.
