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Transpalatal arch for molar rotation

    • Computer based strain gauge system
    • Two units representing rt. & lt. Molars with lingual attachments
    • Attachments placed vertically,parallel & facing each other on same plane
    • Attachments fastened to movable clutches with strain gauge sensors
    • SAGITTAL AND HORIZONTAL FORCES RECORDED BY FOUR FORCE RECORDERS AND MOMENTS RECORDED BY TWO MOMENT RECORDERS
    • IN ZTPB, DISTALLY DIRECTED LOOPS INCREASE FLEXIBILITY & MAKES ATTACHMENTS EASIER .
    • DURING ACTIVATION, CENTRAL LOOP OPENS WHILE ADDITIONAL LOOPS CLOSE__“ BAR IS ACTIVE TILL THE LOOPS COME TO THEIR ORIGINAL SHAPES ”
    • WHEN CENTRAL LOOP CLOSES DURING DEACTIVATION, SMALLER LOOPS OPEN THEMSELVES

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