The coronal threads of the implant are covered with bone 6 months postop (Fig.10).  One month later when a permanent crown tries in, the implant is found to be loose and tender.  A healing abutment is placed.  Six months later, the patient returns for crown retry-in.  The tooth #1 seems to have shifted mesially (Fig.11 arrow).

Control of Implant Placement Level Last Next Course 2 3 4

Xin Wei, DDS, PhD, MS 1st edition 09/01/2017, last revision 09/03/2018