There is a mushroom around the implant nearly 5 months postop/immediately before cementation (Fig.22).  The dome contains low density bone (Fig.23 * (coronal section with buccal on the right side)).

Retrieve Implant from Sinus Last Next Course 2 3 4 Xin Wei, DDS, PhD, MS 1st edition 01/30/2018, last revision 08/18/2018