Comparative Assessment of Torque Expression of Stainless Steel, Nickel Titanium, Heat Activated Nickel Titanium and Titanium Molybdenum Alloy Wires - A Finite Element Method Study
Journal Title: IP Indian Journal of Orthodontics and Dentofacial Research - Year 2016, Vol 2, Issue 1
Abstract
Objective: To assess and compare the torque values of different wires - Stainless Steel, Nickel Titanium, Heat Activated Nickel Titanium and Titanium Molybdenum alloy using Finite Element Analysis. Methods: Three-dimensional model of a maxillary right central incisor tooth was made with the surrounding periodontal ligament and alveolar bone. Three dimensional CAD models of a MBT 0.022’’ slot bracket, 8mm long 0.019x0.025” and 0.021x0.025” orthodontic wires were also made using the CATIA V5 R21 software. After the models were meshed with the Hyper mesh software, mechanical properties such as Young’s modulus and Poisson’s ratio of tooth, compact bone, spongy bone, periodontal ligament, Stainless Steel, NiTi, HANT and TMA wires were assigned to the finite element model. The torques expressed in the central incisor by the different arch wires were recorded using ABAQUS 6.14 FEM software.
Authors and Affiliations
Santosh Ramegowda, Anju Babu, Shailaja A. M, Shashanka P. Kumar
Keywords
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