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The team designed their preliminary design by the end of the Fall 2003 semester. The device contains a threaded (M1.5 X 3 Isometric threads) rod with nut that allows movement of the upper transport plate. The device has angular adjustment capabilities due to a set of connecting wedges (that are placed between the two lower transport plates and through the threaded rod). The device has multi-tooth and single-tooth capabilities. Each turn of the nut corresponds to a .5mm distraction. A patient generally would turn the nut (with or without aid by a dental practitioner) two times per day to achieve the 1mm prescribed distraction.
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