After insertion of a 5.7x5.5(3) mm abutment, Vanilla Graft is placed (Fig.5 * with 2 mm buccal gap).  The abutment with a provisional is loose 4 months postop (Fig.6).  The abutment screw is loose and fractured 8 and 11 months post cementation, respectively (Fig.7).  The fractured screw seems to be loose within the implant well and is easily re-winded out.   When the crown/abutment is loose 2nd time 1 year 7 months post cementation (Fig.8 taken post retightening), the screw at #19 fractures.  The tooth #2 needs a crown.  The patient cannot use the anterior teeth, since the teeth #8 and 9 have root fracture.  Can extraction and bone graft increase bone height?  The screw re-fractures 9 months later (Fig.9).

Discrepant Crests Last Next Xin Wei, DDS, PhD, MS 1st edition 11/10/2020, last revision 02/24/2021