Palatally impacted canines: the double traction technique.
When closed eruption is used to recover palatally impacted canines, patients risk a second surgical operation because the traction attachment could come off or the wire ligature, which is connected to the attachment, could break. In order to reduce this risk, a new simple technique has been developed. Instead of the classic single one, two attachments are bonded to the impacted canine. During the orthodontic finishing, the technique includes a mandibular premolar bracket bonded to the ectopic canine. This device should produce a more negative torque (Torque -17 degrees rather than -7 degrees) over the root, which usually remains in palatal position soon after the performed crown recovery.
Celli
Daniel
D
Department of Orthodontics, Università Cattolica del Sacro Cuore, Rome, Italy. info@celliortho.it
Catalfamo
Lorenza
L
Deli
Roberto
R
D000293:Adolescent; D003481:Cuspid / Q000000981:diagnostic imaging / Q000473:pathology*; D006801:Humans; D008297:Male; D008437:Maxilla; D016382:Orthodontic Appliance Design; D050793:Orthodontic Extrusion / Q000295:instrumentation* / Q000379:methods*; D011862:Radiography, Panoramic; D014095:Tooth, Impacted / Q000000981:diagnostic imaging / Q000628:therapy*; D019415:Torque