Comparison of biomechanical differences by FEM between labial and lingual orthodontic mechanotherapy involved in canine retraction

Nameeta Kaur; Mohammad Mushtaq; Syed Zameer Khurshaid

doi:10.53730/ijhs.v6nS9.13620

Authors

Nameeta Kaur
nameetakaur@gmail.com
Lecturer, Department of Orthodontics and Dentofacial Orthopedics, Government Dental College and Hospital, Srinagar, Kashmir (J & K)
Mohammad Mushtaq Professor & Head, Department of Orthodontics and Dentofacial Orthopedics, Government Dental College and Hospital, Srinagar, Kashmir (J & K)
Syed Zameer Khurshaid Associate Professor, Department of Orthodontics and Dentofacial Orthopedics, Government Dental College and Hospital, Srinagar, Kashmir (J & K)

Keywords:

FEM, Retraction, Stress

Abstract

Introduction- FEM is a mathematical method in which the shape of complex geometric objects and their physical properties are computer-constructed. Physical interactions of the various components of the model can then be calculated in terms of stress and strain, detailed information which is difficult to obtain by any other experimental or analytical means due to the interaction of anatomical structures with the surrounding tissue. Aim- Comparison of biomechanical differences by FEM between labial and lingual orthodontic mechanotherapy involved in canine retraction. Material & Method - ANSYS software was preferred over others for the analysis. As ANSYS can import computer assisted designing (CAD) data and also enables to build geometry, in the current study, we have shown the simulated individual (sequential) canine retraction using the sliding (friction method) mechanics by an elastic component. Sliding mechanics was preferred over the closing loop mechanics (frictionless method) Results- Stress in the PDL and Alveolar bone were calculated and depicted. Conclusion- On retraction, the high stress was produced with the Labial system in the PDL and alveolar bone that gradually reduced on force degradation. On combined force application slight increase in stress was noticed.

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