Since the implant threads are exposed and appears to trap bacteria, the implant is removed with wrench.  The sinus membrane is intact.  After granulation tissue removal, Vanilla graft is placed and held in place with Osteogen plug (Fig.9).  The potential bone height for re-implantation is 6-10 mm (Fig.10). 

Drill Perforation Last Next Xin Wei, DDS, PhD, MS 1st edition 09/06/2018, last revision 11/06/2018