Fig. 4From: Stress distribution and displacement of three different types of micro-implant assisted rapid maxillary expansion (MARME): a three-dimensional finite element studySchematic drawing of a coronal view of a patient with severe transverse maxillary deficiency. a The adjustable height of model A arms can provide the RME. b Models B and C simulation, the body screw expander collides with the lateral mucosa, which could cause injuryBack to article page