Results showed that mechanical active irrigation reduces post-operative pain .
It improved debridement , canal/isthmus cleanliness .
It also improved delivery of irrigant up to working length .
Bacterial count was more with active irrigation , though not significant .
There is no effect on long-term periapical healing .
Conclusion It may be concluded that mechanical active irrigation devices are beneficial in reducing post-operative pain and improving canal and isthmus cleanliness during Endodontics
Objective Irrigant activation has been cl aim ed to be beneficial in in vitro and clinical studies .
This systematic review aims to investigate the clinical efficiency of mechanically activated irrigants and conventional irrigation .
In vivo antibacterial efficacy of ultrasound after hand and rotary instrumentation in human mandibular molars.
The purpose of this prospect i ve , r and omized , single-blind study was to compare the in vivo antibacterial efficacy of a h and /rotary technique versus a h and /rotary/ultrasound technique in mesial root canals of necrotic m and ibular molars . The h and /rotary group consisted of 16 mesial roots prepared with a h and /rotary technique .  The h and /rotary/ultrasound group consisted of 15 mesial roots prepared similarly , followed by 1 minute of ultrasonic irrigation per canal with an ultrasonic needle in a MiniEndo unit and 15 mL/canal of 6.0 % sodium hypochlorite . Canals were sample d before and after instrumentation and after 1 minute of ultrasonic irrigation . Sample s were incubated anaerobically on reduced blood agar for 7 days at 37 degrees C , and colony-forming units ( CFUs ) were counted . The addition of 1 minute of ultrasonic irrigation result ed in significant ( p = .0006 ) reduction in CFU count and positive cultures ( p = .0047 ) . Logistic regression analysis indicated the addition of ultrasonic irrigation was 7 times more likely to yield a negative culture
Results showed that mechanical active irrigation reduces post-operative pain .
It improved debridement , canal/isthmus cleanliness .
It also improved delivery of irrigant up to working length .
Bacterial count was more with active irrigation , though not significant .
There is no effect on long-term periapical healing .
Conclusion It may be concluded that mechanical active irrigation devices are beneficial in reducing post-operative pain and improving canal and isthmus cleanliness during Endodontics
Objective Irrigant activation has been cl aim ed to be beneficial in in vitro and clinical studies .
This systematic review aims to investigate the clinical efficiency of mechanically activated irrigants and conventional irrigation .