A large periradicular radiolucency (Fig.4 arrowheads) is confirmed with a 2 mm pilot drill in place (20 mm deep from the gingival margin).  A 5x20 mm implant is placed with insertion torque >60 Ncm (Fig.5 I), with mixture of autogenous bone, allograft and synthetic bone filling the defect (*).  The bone density around the implant appears to increase 2 months (Fig.10 I) and 7 months (Fig.11) postop.

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Xin Wei, DDS, PhD, MS 2/07/2014, last revision 05/27/2018