Previous gap  (Fig.10 <) is closed by the 2nd round of allograft (*).  The implant threads appear to be covered by the "re-organized"bone graft 3.5 months postop (Fig.11). The bone density seems to increase 5 months postop, i.e., immediately post cementation (Fig.12) and 10 months postop (5 months post cementation (after retightening abutment), Fig.13 (*)).  In fact there is mesial crestal bone loss (Fig.11-12), as compared to immediate postop (Fig.10).

Osteotomy Depth Control Last Next Xin Wei, DDS, PhD, MS 1st edition 10/17/2017, last revision 04/26/2020