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When a 3x14 implant (4 mm cuff) is placed with insertion torque >55 Ncm, its relationship with the mesial crest is ideal (Fig.3 white arrowhead), while the distal coronal threads are not contacted by the native bone (black arrowheads).
Allograft mixed by Osteogen is placed in the remaining socket, particularly in the buccodistolingual gap (Fig.4 *). The distal coronal threads are covered. An immediate provisional (P) helps keep the graft in place.
The mesial and distal crests turn out to be at the same level 4 months postop (Fig.8 arrowheads). All of the implant threads are covered by bone.
Xin Wei, DDS, PhD, MS 1st edition 03/10/2015, last revision 07/07/2015