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The distal surface of the provisional will be reduced (Fig.9 D), whereas the occlusal surface will be increased (O). If needed, the occlusal surface of the distalized tooth #4 will be reduced (Fig.9 red area) so that there is no interference for tooth to move.
Xin Wei, DDS, PhD, MS 1st edition 03/01/2015, last revision 03/01/2015