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The implant has to be backed up, and redirected (Fig.11). The buccal threads (red line) are barely apical to the gingiva (pink curved line). The space between the gingiva and the implant is so limited that it is difficult to add (curved green arrow) bone graft (green circle). Red circles represent bone graft placed before implant placement.
Xin Wei, DDS, PhD, MS 1st edition 01/17/2015, last revision 01/17/2015