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Activated fluids promote deep cleaning and disinfection throughout the root canal. When the irrigation fluids in the root canal are disrupted through cavitation and acoustic streaming, debridement occurs and the smear layer is disrupted. This, in turn, promotes deep cleaning and disinfection into the lateral canals, fins, webs, and anastomoses. The EndoActivator, recently introduced by DENTSPLY Tulsa Dental Specialties and designed by Drs. Clifford Ruddle, Robert Sharp, and Pierre Machtou, uses noncutting polymer tips to agitate irrigation solutions during endodontic therapy.