A crestal transverse cut will be conducted using a surgical fissure bur (Fig.2 red), followed by 2 vertical cuts (Fig.3,4 (3-D X-ray mode) and an apical transverse one (Fig.5,6).  The incision will be closed.  Three weeks later, a crestal incision will be made.  The buccal plate will be fractured and pushed buccal (Fig.7,8 arrow) using chisel (yellow). 

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Xin Wei, DDS, PhD, MS 1st edition 04/14/2020, last revision 04/14/2020