Sonntag, David Root canal preparation with the NiTi systems K3, Mtwo and ProTaper. [electronic resource] - Australian endodontic journal : the journal of the Australian Society of Endodontology Inc Aug 2007 - 73-81 p. digital Publication Type: Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 1329-1947 Standard No.: 10.1111/j.1747-4477.2007.00062.x doi Subjects--Topical Terms: Dental Alloys--chemistryDental Pulp Cavity--anatomy & histologyEquipment DesignEquipment FailureGutta-Percha--therapeutic useHumansImage Processing, Computer-AssistedMaterials TestingModels, AnatomicMolar--diagnostic imagingNickel--chemistryRadiography, Dental, DigitalRoot Canal Filling Materials--therapeutic useRoot Canal Preparation--instrumentationTitanium--chemistryTooth Apex--anatomy & histology