Effect of ultrasonic activation on the reduction of bacteria and endotoxins in root canals: a randomized clinical trial.

V C NakamuraEricka Tavares PinheiroL C PradoA C SilveiraA P L CarvalhoM P A MayerG Gavini

Published in: International endodontic journal (2017)

Ultrasonic activation was more effective than nonactivated irrigation for reducing the number of bacteria but not the endotoxin levels in root canals of teeth with apical periodontitis.

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