Fixed versus Removable Appliance for Palatal Expansion; A 3D Analysis Using the Finite Element Method

摘要

Objective:Several appliances have been used for palatal expansion for treatment of posterior cross bite. The purpose of this study was to evaluate the stress induced in the apical and crestal alveolar bone and the pattern of tooth displacement following expansion via removable expansion plates or fixed-banded palatal expander using the finite element method (FEM) analysis.