Analysing Mechanical Property of Two Different Closing Loops using Finite Element Analysis and Universal Testing Machine: A Comparitive Study

The present study was conducted to evaluate the force obtained after activation of Tear drop and "T" loops by mechanical method and by finite element method. 25 "T" loops and 25 Tear drop loops were made and activated incrementally. Computer simulation (Finite element analysis) of the Tear drop loop and T loop were done using ANSYS software and the force exerted was evaluated. The values obtained in both the methods were compared and analyzed. The results show that the "T" loop delivered statistically less force for all activation compared to Tear drop loop. Stress concentration for the Tear drop loop was maximum in the curvature of loop.(fig 18). The results also showed that there was no statistically significant difference between the computer simulation and mechanical measurement signifying the accurate prediction of Finite element analysis. Since computed simulated technique accurately predicts the experimentally determined mechanical behavior of T loop and Tear drop loop, it shall be consider as alternative for designing orthodontics appliance before treatment