A BW shows that the implant is placed slightly subcrestal (Fig.4).  The bone resorption seems to be worse 8 months post cementation (Fig.8,9, compare Fig.7); in fact the abutment screw is loose.  The gingiva is healthy.

Sinus Lift with PRF Last Next

Xin Wei, DDS, PhD, MS 1st edition 04/28/2017, last revision 05/05/2019