Rapid palatal expanders (RPE), also known as rapid maxillary expanders (RME) or palatal suture appliances (PSA), are fixed appliances designed for rapid and efficient palatal expansion. Unlike appliances that gradually move teeth, RPEs work by separating the median palatal suture. After initial insertion and activation, the screw is activated by the patient’s family, typically 1-2 … Continue reading Rapid Palatal Expanders (RPE/RME/PSA)