The abutment is loose 4 months post cementation, probably related to unfavorable crown/implant ratio; but when the abutment is retightened, there is a gap between it and the implant (Fig. 11 >).  After relieving the proximal contact of the crown, the abutment is retightened one more time with the same gap (Fig.12 >).  In fact the latter is present previously.  A narrower abutment with longer cuff appears to be completely seated, probably avoiding contact with the regenerated crestal bone (Fig.13 *).  If the new crown gets loose, bury a driver inside the abutment.

Smaller Implant Last Next

Xin Wei, DDS, PhD, MS 1st edition 06/15/2019, last revision 12/28/2019