title: Midpalatal suture opening during functional posterior cross-bite correction.
abstract: The purpose of this study was to determine whether opening of the midpalatal suture occurs during treatment of posterior cross-bites by means of a Porter or W appliance. In eight of the ten cases treated there was radiographic evidence of midpalatal suture opening. Posterior cross-bite correction with a Porter of W appliance may occur either by a combination of midpalatal suture opening and buccal tipping of posterior teeth or by buccal tipping alone.
mesh_terms: D000202:Activator Appliances; D002648:Child; D006801:Humans; D008310:Malocclusion / Q000628:therapy*; D009968:Orthodontic Appliances, Removable; D010155:Palatal Expansion Technique / Q000295:instrumentation; D010159:Palate / Q000033:anatomy & histology*; D014087:Tooth Movement Techniques