There is more bone buccal (B) and palatal to the immediate implant at #4 (Fig.1, as compared to delayed one at #13 (Fig.2 (<: coronal end of the fixture))). It would be better to use a smaller and longer implant at #13, as planned. Or the implant is placed more buccal. There seems to be more bone buccal and palatal when the implant placed at #14 is 4.5 mm instead of 5 mm in diameter (Fig.3). *: bone graft. Later a 4.5x4 mm healing abutment is placed at #13.
Autogenous Bone Last Next 1-Piece Xin Wei, DDS, PhD, MS 1st edition 05/01/2020, last revision 05/03/2020