JCO Journal of Clinical Orthodontics
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Spring-Assisted Molar Intrusion in Clear-Aligner Treatment

VOLUME 51 : NUMBER 05 : PAGES (270-278) 2017

MENG-JIAO RUAN, DDS

RUO-PING JIANG, DDS, PhD

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Although fixed appliances with either continuous or segmented archwires are an effective method of intruding teeth, extrusion of the adjacent anchorage teeth is inevitable in most cases. In recent years, successful intrusion of overeupted upper molars has been reported using skeletal anchorage. Flieger and colleagues treated an open-bite case with intrusion and mini-implant anchorage, creating 2mm of overbite in six to nine months. Lee and colleagues intruded a supraerupted molar ...

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