With IS guide, a 5x11 mm IBS implant is placed in the septum of #15 with >5 mm the palatal gap.  After underprep in depth at #13, a 3.5x9 mm implant achieves primary stability (Fig.2,3).  The palatal defect of #15 is repaired with allograft (*) and 2 pieces of PRF membrane.

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Xin Wei, DDS, PhD, MS 1st edition 08/26/2019, last revision 02/16/2020