title: So what's new? Arch expansion, again.
authors.forename: Sheldon
authors.initials: S
authors.lastname: Peck
mesh_terms: D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008389:Marketing of Health Services; D016382:Orthodontic Appliance Design; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D010155:Palatal Expansion Technique / Q000266:history / Q000295:instrumentation