“The TA loop” better force delivery through better design

Authors

  • Tarun Sharma Professor and Head, Department of Orthodontics and Dentofacial Orthopedics, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India
  • Anu Grover Lecturer, Department of Orthodontics and Dentofacial Orthopedics, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India
  • P. Narayana Prasad Professor and Head of Department, Department of Orthodontics and Dentofacial Orthopedics, Seema Dental College and Hospital, Rishikesh, Uttarakhand
  • Tarun Kumar Professor and Head, Department of Orthodontic and Dentofacial Orthopedic, Faculty of Dental Sciences, SGT University, Haryana, India
  • Pranshu Tomer Post Graduate Student, Department of Orthodontics and Dentofacial Orthopedics, Seema Dental College and Hospital, Rishikesh, Uttarakhand, India

DOI:

https://doi.org/10.3126/ojn.v13i2.58951

Keywords:

Finite element analysis, FEM, frictionless mechanics, loops in Orthodontics, Finite element analysis, FEM,  frictionless mechanics, loops in orthodontics,TA ( Tarun Anu) loop.

Abstract

Introduction: This study evaluates and compares stress  distribution and deformation generated on the periodontal ligament, cortical and cancellous bone by a novel loop design, the TA (Tarun Anu) loop used for anterior teeth retraction and compare it with the conventional Mushroom loop  using finite element analysis (FEM).

Aims and Objective: Evaluation of the efficacy of a novel  loop design named as TA loop with the conventional  Mushroom loop (M loop) using FEM.

Materials and method: Finite element models of both the loops and maxilla and mandible was created using ANSYS Software and for geometric modelling, SolidWorks Software was used. The loading condition was designed to mimic retraction forces determined from two different activations and the results were obtained.

Results: FEM affirmed that the stresses generated by the TA loop were within the permissible range which could be taken up by the roots and the surrounding tissues without causing any deleterious effect. The TA loop includes two helices on either side of the horizontal section, resulting in increased wire length and enhanced force delivery.

Conclusion: Significant variations in stress distribution and deformation were observed between the two loops, highlighting the TA loop’s superior efficiency in achieving a consistent force delivery due to increased range of actions.

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Published

2023-12-31

How to Cite

Sharma, T., Grover, A., Prasad, P. N., Kumar, T., & Tomer, P. (2023). “The TA loop” better force delivery through better design. Orthodontic Journal of Nepal, 13(2), 38–47. https://doi.org/10.3126/ojn.v13i2.58951

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Original Articles