title: [Distalization of the upper second molar: biomechanics].
abstract: The Author shows a system to dystalize the second upper molars and, if necessary, the third upper molars. This system, easy to be adapted, is made up by a palatal bar inserted between the first upper molars, by a sectional and a 100 grams precalibrated open Sentalloy coil spring used as an active force.
authors.affiliation: Department of Orthodontics, Boston University.
authors.forename: A
authors.initials: A
authors.lastname: Castaldo
mesh_terms: D003799:Dental Stress Analysis; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy*; D008437:Maxilla; D008963:Molar; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective / Q000379:methods*; D010155:Palatal Expansion Technique
vernacular_title: Distalizzazione del II molare superiore: Biomeccanica.