title: Continuous torque system with control of the reaction unit.
abstract: This article describes an orthodontic system used to obtain active continuous torque with movement control of both active and reactive units; the system relies on principles of the segmented technique. A cantilever system with .017 x .025-in beta-titanium alloy wire was designed to provide the desirable moment on the active unit. A transpalatal bar or a lingual arch increases the anchorage and neutralizes the side effects on the reactive unit. This technique is an efficient approach for major corrections of buccolingual inclinations of certain teeth.
authors.affiliation: Department of Orthodontics, Araraquara Dental School, University of the State of São Paulo, Araraquara, São Paulo, Brazil. luizgandini@uol.com.br
authors.forename: Luiz Gonzaga
authors.initials: LG
authors.lastname: Gandini
authors.forename: Márcia Regina Elisa Aparecida Schiavon
authors.initials: MR
authors.lastname: Gandini
authors.forename: Roberta Maria de Paula
authors.initials: RM
authors.lastname: Amaral
mesh_terms: D003799:Dental Stress Analysis; D006801:Humans; D052280:Orthodontic Anchorage Procedures / Q000295:instrumentation; D016382:Orthodontic Appliance Design; D050793:Orthodontic Extrusion / Q000295:instrumentation / Q000379:methods*; D014087:Tooth Movement Techniques / Q000295:instrumentation* / Q000379:methods*; D019415:Torque