Comparison of root canals obturated with ProTaper gutta-percha master point using the active lateral condensation and the single-cone techniques: a bacterial leakage study

Comparison of root canals obturated with ProTaper gutta-percha master point using the active lateral condensation and the single-cone techniques: a bacterial leakage study

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Aim: The aim of the present study was to assess the recontamination acupatch time of root canals filled with ProTaper gutta-percha master point using the active lateral condensation and the single-cone techniques.Methods: Fifty premolars, after biomechanical preparation, were randomly divided into six groups according to the obturation technique and the diameter of the gutta-percha point.For leakage evaluation, the roots were mounted in a dual-chamber leakage model system using Pseudomonas aeruginosa, Enterococcus faecalis, Escherichia coli, and Staphylococcus aureus.

The Kaplan-Meier and Long-Rank tests were employed at the.05 level of significance.Results: The recontamination was detected between the 13th and 80th days.

The active lateral condensation produced less infiltration than the single cone technique, though without statistically significant differences between them.Conclusions: It may be concluded that there was no difference in bacterial penetration between the two root canal canon imageclass mf227dw filling techniques.The mean root canal contamination time was 67 days.