By weighing human teeth, two auxiliary chemical methods in the instrumentation of root canals were compared as follows: Endo PTC in alternation with 1% sodium hipochlorite followed by irrigation, aspiration with detergent/antisseptic solution (group A) and with 1% sodium hipochlorite alone (group B). Our conclusions indicate that: 1) Differences occured in two of the studied groups in three categories. 2) Group A showed a greater difference of weight when compared to group B (p < 0.01). 3) Group B required a minor time of instrumentation in relation to group A (p < 0.05). 4) Relative to the difference of weight based on time unit, group A presented higher values when compared to group B (p < 0.05).
Endodontic; Root canal therapy; Irrigation
