Continuous torque system with control of the reaction unit.
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.
Gandini
Luiz Gonzaga
LG
Department of Orthodontics, Araraquara Dental School, University of the State of São Paulo, Araraquara, São Paulo, Brazil. luizgandini@uol.com.br
Gandini
Márcia Regina Elisa Aparecida Schiavon
MR
Amaral
Roberta Maria de Paula
RM
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