There is a mushroom around the implant nearly 5 months postop, immediately before cementation (Fig.21).  The low density bone is around the implant (Fig.24' *).

Retrieve Implant from Sinus  Course 2 3 4 Last Redo

Xin Wei, DDS, PhD, MS 1st edition 01/30/2018, last revision 08/18/2018