Torque Loss in En-Masse Retraction of Maxillary Anterior Teeth Using Miniimplants with Force Vectors at Different Levels: 3D FEM Study.

@article{Parashar2014TorqueLI,
  title={Torque Loss in En-Masse Retraction of Maxillary Anterior Teeth Using Miniimplants with Force Vectors at Different Levels: 3D FEM Study.},
  author={Abhishek Parashar and Kaladhar Reddy Aileni and Madhukar Reddy Rachala and Nagam Reddy Shashidhar and Vankre Mallikarjun and Nupur Parik},
  journal={Journal of clinical and diagnostic research : JCDR},
  year={2014},
  volume={8 12},
  pages={
          ZC77-80
        }
}
OBJECTIVE This FEM study was conducted to quantify the amount of torque loss in maxillary anterior teeth by applying force vectors from different levels to the anterior retraction hook at various heights and comparing with that of molar anchorage system. MATERIALS AND METHODS Five 3D FEM models were constructed with force vectors at different levels: HOT-High Orthodontic Traction (13.5mm from archwire) to ARH1- Anterior Retraction Hook (5mm), HOT to ARH2 (8mm), LOT- Low Orthodontic Traction… CONTINUE READING

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