By the time a 3.8x16 mm implant is placed (>35 Ncm), the apical buccal gap is too small to be inserted by Osteotape (collagen membrane impregnated with Osteogen).  Allograft is placed in the remaining gaps in the two-step manner.  It would be much easier to pack the membrane and bone graft (small amount) against the apical buccal plate inside the socket prior to implant placement.

A cemented abutment is placed for an immediate provisional (Fig.6).

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Xin Wei, DDS, PhD, MS 1st edition 04/20/2016, last revision 09/19/2018