BWs (Fig.13,14) shows that new bone has grown into the area between the most coronal 2 threads 5 months post cementation (arrows, 10 months postop).  When the crown and abutment are removed, the gingiva looks normal except minor laceration buccally.  A 7.5x4 mm healing abutment is placed. 

Crack

Xin Wei, DDS, PhD, MS 1st edition 05/10/2017, last revision 05/10/2017