title: Efficacy and safety tests of six automated devices for root canal instrumentation.
authors.forename: L
authors.initials: L
authors.lastname: Tronstad
authors.forename: S P
authors.initials: SP
authors.lastname: Niemczyk
mesh_terms: D004526:Efficiency; D012390:Root Canal Therapy / Q000295:instrumentation*; D012449:Safety; D014464:Ultrasonic Therapy / Q000295:instrumentation