Effect of attachment configuration and trim line design on the force system of orthodontic aligners: A finite element study on the upper central incisor.

ABSTRACT:

Objectives

To use the finite element method (FEM) to investigate the effect of various attachment configurations and trimming line designs of orthodontic aligners on their biomechanical performance.

Method

A 3D upper jaw model was imported into 3D design software. The upper right central incisor tooth (Tooth 11) was made mobile, and its periodontal ligament (PDL) and bone structures were designed. Aligners were modelled with three distinct attachment configurations: No attachment, rectangular horizontal, rectangular vertical, and two trimming line designs; scalloped and straight extended, with a homogeneous thickness of 0.6 mm. These models were then imported into an FE software. Simulations were conducted for three different movements, including facial translation, distaliz

SUBMITTER: Elshazly TM 

PROVIDER: S-EPMC11654353 | biostudies-literature | 2024 Dec

REPOSITORIES: biostudies-literature