title: "Two-by-four" expression.
authors.forename: J H
authors.initials: JH
authors.lastname: Sklaroff
mesh_terms: D001291:Attitude of Health Personnel; D006801:Humans; D009967:Orthodontic Appliances; D009970:Orthodontics; D009626:Terminology as Topic; D014087:Tooth Movement Techniques / Q000295:instrumentation*