Osteotomy is established palatally with Magic Expander (ME) 3.0 mm for ~ 3 mm deep (Fig.3,4) with minimal stability so that it moves during X-ray taking (Fig.4).  The entry point is also distal, which should have been corrected at this early stage.  It is better to start with a drill, followed by bone expanders.

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Xin Wei, DDS, PhD, MS 1st edition 09/29/2016, last revision 06/17/2018