Immediate postop, the abutment margin appears to be subcrestal (biologic width violation, Fig.5).  The gingiva bleeds easily when the provisional is removed 2 weeks and 3.5 months postop.  It is difficult to insert gingival retraction cords.  When an abutment with longer cuff is placed, the packing is easier (Fig.7 (^: resorbed mesial crest)).  *: bone graft.  The mesial socket gap (Fig.5: <) disappears 3.5 months postop (Fig.7).

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Xin Wei, DDS, PhD, MS 1st edition 11/06/2020, last revision 11/06/2020