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Chronic Implantation of Multiple Flexible Polymer Electrode Arrays
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The removable quadhelix appliance

C Asher

    British Journal of Orthodontics
    |January 1, 1985
    PubMed

    Abstract:

    The introduction of a preformed removable quadhelix appliance with curved rotation sheaths for insertion and removal has overcome many of the clinical problems associated with the fixed quadhelix appliance. The design, fitting and activation of the appliance are described. Various applications and modifications are discussed.

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