Torsional properties of stainless steel Canal Master U and Flexogates
Related Experiment Video
Updated: Oct 21, 2026

A Coupled Experiment-finite Element Modeling Methodology for Assessing High Strain Rate Mechanical Response of Soft Biomaterials
Published on: May 18, 2015
1Department of Restorative Dentistry and Endodontics, Faculty of Dentistry, Marseille, France.
Abstract:
The purpose of this study was to evaluate and compare the torsional properties of Flexogates and Canal Master U instruments. Torsion and bending tests were performed on both designs of instrument according to ANSI/ADA specification number 28 criteria and standards. Ten instruments of each size, sizes 25 to 50 were used for each test. Four parameters were measured: the moment at failure, the rotation at failure, the separation point at failure and the bending moment at a 45 degrees angle. Both instruments satisfied ANSI/ADA standards for rotation at failure and bending moment. Canal Master U satisfied ANSI/ADA standards for moment at failure in all sizes except 45 and 50. Flexogates did not satisfy these standards in all sizes except 50. Flexogates separated at the end of the shaft whereas Canal master U separated just behind the cutting head. Both instruments showed favourable physical properties for preparing root canals.
Related Concept Videos
Stress Concentrations in Circular Shafts
Torsion of Noncircular Members
Thin-Walled Hollow Shafts
Mechanical Characteristics of Steel
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used to...
Design Example: Forces in Sluice Gate
Key variables in...
Steady, Laminar Flow in Circular Tubes

