Fig.4: After extraction, osteotomy starts at the buccal slope (white circle of the insert) of the palatal (P) socket.  MB: mesiobuccal; DB: distobuccal.

The buccopalatal dimension is larger than the mesiodistal one for an upper first molar.  There is space left buccal, palatal and both after a large immediate implant placement.  Bone graft and then collagen dressing (tape) are used to fill the gap(s).

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Xin Wei, DDS, PhD, MS 1st edition 07/20/2013, last revision 01/19/2018