IATs improve intracanal cleanliness across a substantial portion of the canal , and therefore , their use is recommended throughout root canal preparation .
AIMS To establish whether irrigant activation techniques ( IATs ) result in greater intracanal smear layer and debris removal than conventional needle irrigation ( CNI ) .
A Scanning electron microscopic evaluation of intracanal smear layer removal by two different final irrigation activation systems
Aim : The aim of this study was to compare smear layer removal at apical 1 mm level after final irrigation activation with an EndoVac system and Max-I probe . Material s and Methods : Fifty freshly extracted maxillary central incisors were r and omly divided into two groups after completing cleaning and shaping with ProTaper rotary files . In one group , final irrigation was performed with an EndoVac system while in the other group final irrigation was performed with a 30 gauge Max-I probe . 3 % sodium hypochlorite and 17 % ethylenediaminetetracetic acid were used as final irrigants in all teeth . After instrumentation and irrigation , the teeth were sectioned longitudinally into buccal and palatal halves and viewed under a scanning electron microscope for evaluation of the smear layer . Statistical analysis was performed using the Kruskal Wallis and Mann-Whitney U tests . Results : The EndoVac group showed significantly better smear layer removal compared with the Max-I probe at the apical 1 mm level . Conclusion : An apical negative pressure system ( EndoVac ) results in better debridement at apical 1 mm when compared with side-vented closed ended needle irrigation ( Max-I probe )
IATs improve intracanal cleanliness across a substantial portion of the canal , and therefore , their use is recommended throughout root canal preparation .
AIMS To establish whether irrigant activation techniques ( IATs ) result in greater intracanal smear layer and debris removal than conventional needle irrigation ( CNI ) .