title: [Clinically relevant biomechanics. 3. Critical reflections about the Burstone intrusion mechanics].
abstract: A segmented arch for intrusion of front teeth, as described by Burstone, is compared to a coil-and-stylus-model. The mechanics of constructive modifications are analyzed and their consequences for the movements of front teeth are discussed. It is shown, that in some cases extrusive forces occur, while intrusive forces are applied. In these cases it is necessary to reduce intrusive forces below 0.20 Newton per side. In order to avoid extrusive forces, it is recommended to apply intruding forces between the centers of resistance of the central and lateral incisors.
authors.affiliation: Klinik für Kieferorthopädie der Rheinisch-Westfälischen Technischen Hochschule, Aachen.
authors.forename: R S
authors.initials: RS
authors.lastname: Meyer
authors.forename: H
authors.initials: H
authors.lastname: Wehrbein
authors.forename: W
authors.initials: W
authors.lastname: Bauer
authors.forename: P
authors.initials: P
authors.lastname: Diedrich
mesh_terms: D003799:Dental Stress Analysis; D006801:Humans; D007180:Incisor; D009967:Orthodontic Appliances; D009971:Orthodontics, Corrective
vernacular_title: Klinisch relevante Biomechanik--3. Mitteilung. Kritische Betrachtungen zur Intrusionsmechanik nach Burstone.