Question

Difference between hyrax and schwartz appliance ortho

Answer 1

Schwarz appliance • This is a removable expansion plate that can be used in early ..

Fixed appliances such as Haas and Hyrax with jackscrews can be used for both SME

Answer 2

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.