Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Tendency of tooth movement produced by different cross-sections of a T-loop orthodontic spring: an analysis by the finite element method
Submission Author:
Fábio Rodrigo Mandello Rodrigues , PR
Co-Authors:
Fábio Rodrigo Mandello Rodrigues, Paulo César Borges, Marco Antonio Luersen, MARCELO DO AMARAL FERREIRA
Presenter: Paulo Rogério Novak
doi://10.26678/ABCM.COBEM2017.COB17-0029
Abstract
The use of orthodontic retraction springs for the correction of dental positions has been very efficient over the years, especially T-loop orthodontic springs. These springs are made with metallic wires of various sections and alloys. The present study aims to analyze the influence of different cross sections of wires in the dental movement, with the use of T-loop geometry of titanium-molybdenum (TiMo) beta III metal alloy. The device was modeled three-dimensional and simulations were carried out by the finite element method for large displacements. It has been observed that there is an increase in the values of forces and reactive moments in the tooth, as well as in the stiffness of the spring, with the increase of the cross-section of the metallic wire. Regarding tooth movement, no significant difference was observed for the sections considered since the moment/force ratio (M/F) remained practically unchanged. The study also pointed out that there are restrictions in the use of some cross sections in certain activation values, since the reactive forces found are outside the zone of ideal orthodontic forces.
Keywords
T-loop orthodontic spring, Finite Element Method, biomechanical analysis, tooth movement
