Coronally the implant is being contacted by the mesial, lingual and distal bone. Apically it is buried in the native bone. This a 2-pointed fixation. The implant lingual placement allows for a large buccal (B) gap for bone graft to regnerate the buccal plate.
Xin Wei, DDS, PhD, MS 1st edition 01/10/2019, last revision 01/11/2019