The crown over the implant has dislodged 3 times over 28 months post cementation (Fig.6).  It appears that the top of the abutment is too rounded.  Bone density seems to remain the same or increase after cementation of a new crown (Fig.7,8).

Dislodged Crown Last Next

Xin Wei, DDS, PhD, MS 1st edition 05/03/2019, last revision 05/03/2019