Di Fiore, P M Nickel-titanium rotary instrument fracture: a clinical practice assessment. [electronic resource] - International endodontic journal Sep 2006 - 700-8 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0143-2885 Standard No.: 10.1111/j.1365-2591.2006.01137.x doi Subjects--Topical Terms: Chi-Square DistributionDental AlloysDental Instruments--statistics & numerical dataDental Stress AnalysisEquipment DesignEquipment Failure--statistics & numerical dataHumansNickelProspective StudiesRoot Canal Preparation--instrumentationTitanium