Comparability of results from two leakage models

The effect of reciprocation versus rotational movement on the incidence of root defects during retreatment procedures

“…Souza et al . () described a passive compaction technique that does not create additional force or dentinal defects during the filling process. Similarly, several reports showed that the passive filling technique did not cause dentinal defects (Shemesh et al .…”

“…One hundred roots were filled using the passive technique, as previously described (Souza et al . ). Master Gutta‐percha cones size 35, .02 Taper (Dentsply Maillefer) were coated with AH Plus sealer (Dentsply Maillefer) and placed into the root canal to the WL.…”

The effects of canal preparation and filling on the incidence of dentinal defects

“…Standardized size‐40 gutta‐percha cones (Henry Schein, Mexico City, Mexico), with a 0.02 taper, were coated with sealer, and placed into the root canal to the working length. In group 3, two additional size‐25 cones were placed to a depth where resistance was met without use of a spreader (Souza et al. 2008).…”

Short‐ and long‐term sealing ability of Gutta‐flow and AH‐Plus using an ex vivo fluid transport model

“…It is considered to be much more sensitive than dye penetration (Wu et al. 1994) and of equal sensitivity to the glucose penetration model (Souza et al. 2008).…”