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The Class II Carriere Motion appliance.

Daniel Areepong, Ki Beom Kim, Donald R Oliver

    The Angle Orthodontist
    |December 30, 2020
    PubMed
    Summary

    The Carriere Motion appliance (CMA) effectively corrects Class II malocclusion in adolescents by moving maxillary molars and canines distally and mandibular molars mesially. Skeletal Class II patients showed greater mandibular molar movement and incisor flaring.

    Keywords:
    3D evaluationCarriere Motion applianceCarriere distalizer, CBCT evaluationClass IIClass II malocclusion

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    Area of Science:

    • Orthodontics
    • Dental Technology
    • Craniofacial Development

    Background:

    • Class II malocclusion is a common dental issue in adolescents.
    • The Carriere Motion appliance (CMA) is a treatment option for Class II malocclusion.
    • Understanding the three-dimensional treatment effects of CMA is crucial for effective orthodontic care.

    Purpose of the Study:

    • To evaluate the three-dimensional treatment changes induced by the Class II Carriere Motion appliance (CMA).
    • To assess CMA's efficacy in adolescent patients with Class I and Class II skeletal relationships.

    Main Methods:

    • A cohort of 59 adolescents (16 males, 43 females) with Class II malocclusion was studied.
    • Patients were divided into skeletal Class I (n=27) and skeletal Class II (n=32) groups.
    • Cone beam computed tomography (CBCT) scans were analyzed pre- and post-CMA treatment.

    Main Results:

    • Both groups showed significant distal movement and tipping of maxillary first molars and canines with CMA use.
    • Mandibular molars exhibited significant mesial movement and tipping in both groups.
    • Significant differences between groups were noted in mandibular molar mesial movement and U1-SN changes.

    Conclusions:

    • The CMA effectively corrects Class II malocclusion via distal movement of maxillary teeth and mesial movement of mandibular teeth.
    • Skeletal Class II patients experienced greater mesial mandibular molar movement and maxillary incisor flaring compared to skeletal Class I patients.