Braquete ortodôntico com gancho alongado verticalmente e semi-flexível

Abstract

During orthodontic treatment, the professional often performs distal movements of the teeth. An efficient way to move a tooth without undesired inclinations is to approach the forces of the center of tooth resistance (RC). We have not found in the literature quotes of prefabricated brackets with height hooks that allow the force applied to them to pass through the RC. The objective of the present study was to develop a virtual prototype of an orthodontic attachment with the hook vertically elongated and perform tests using the Finite Element Method (FEM) to evaluate the biomechanical behavior of the tooth, simulating three situations of force exposure: passing through the RC, above the RC and below the RC. An orthodontic bracket with a vertical extension of 15 mm in height and 1 mm in diameter was developed in its wings. Through the FEM, the simulation of the application of forces in the distal direction of the canine was performed using the bracket with the created device. The creation of the virtual prototype to perform the MEF tests was carried out successfully. It was observed that the movement tendency of the canine obtained a greater body movement when the force was passing near the RC.