Crimpable double tubes for segmental retraction.
When a T-loop is used in segmental mechanics, it is generally attached posteriorly to an auxiliary tube in the first molars and anteriorly to a crimpable cross tube or a Burstone canine bracket. This article illustrates the use of a crimpable tube with a 90-degree bend on the base wire to secure a T-loop in segmental retraction. Both of these approaches allow a T-loop to be reactivated in a simple manner without undesirable changes in the system of forces, which could happen if the T-loop is skewed posteriorly.
Adjunct Clinical Faculty of the Graduate Program of Orthodontics, Faculdade Mozarteum-Araraquara, São Paulo, Brazil. dr_renatopmartins@hotmail.com
Renato Parsekian
RP
Martins
Luiz Gonzaga
LG
Gandini
Isabela Parsekian
IP
Martins
Lidia Parsekian
LP
Martins
D003481:Cuspid / Q000473:pathology; D006801:Humans; D008963:Molar / Q000473:pathology; D016382:Orthodontic Appliance Design; D009967:Orthodontic Appliances; D016910:Orthodontic Brackets; D009969:Orthodontic Wires; D013314:Stress, Mechanical; D013499:Surface Properties; D014087:Tooth Movement Techniques / Q000295:instrumentation*