After failure to place an implant in the middle socket with removal of the lingual septal bone, socket preservation is done with PRF and sticky bone (Fig.3).  Bone height reduces nearly 3 months postop (Fig.7).  There seems no further bone loss 4 months postop (Fig.9).

Mesial Placement Last Next Xin Wei, DDS, PhD, MS 1st edition 09/19/2019, last revision 09/22/2019