JCO Journal of Clinical Orthodontics
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TECHNIQUE CLINIC Single-Tooth Intrusion with a Cross Tube and a Cantilever Spring

VOLUME 47 : NUMBER 07 : PAGES (427) 2013

BAO T. VU, DDS, MDS

SHEILA SOROUSHIAN, DMD

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An auxiliary spring is sometimes needed during orthodontic treatment to perform intrusion or a similar tooth movement. If there is no auxiliary tube on the molar band, we use a to support a cantilever spring, as shown here in an adult male patient with an extruded maxillary canine .

An .019" x .025" stainless steel archwire was inserted with a step-out bypass at the canine and a cross tube placed mesial to the first molar. An intr...

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