TF Adaptive | 合法醫療器材資訊網

2013年5月1日—WhentheTFAdaptiveinstrumentisnot(orverylightly)stressedinthecanal,themovementcanbedescribedasacontinuousrotation,allowing ...

INTRODUCTION File separation via torsional and cyclic fatigue has created the biggest fear and risk for dentists using rotary nickel titanium (NiTi) files for root canal treatment 1-2) Increasing the resistance to file separation has been a focus for new NiTi rotary instrument design and manufacturing. Since 2008, the only way to improve performance and safety of NiTi instruments was to change file design with respect file dimensions, tip configuration, cross-section and flute design. With the development of heat treated Twisted File technology (Axis/SybronEndo, Coppel, TX) and M-wire (Dentsply Maillefer, Ballaigues, Switzerland), instruments produced with the newly treated alloys have been commercialized by aiming at improving their mechanical properties. More recently, a third factor has become important in this search for stronger and better instruments: Movement Kinematics.3

For more than a d...