This document describes the flap technique for periodontal bone implants. The technique involves: 1) A sulcular incision around each tooth without involving the interdental papilla and a semilunar incision across each papilla. 2) Reflection of a full-thickness flap on both facial and lingual sides to expose the bone defect while preserving more than 2mm of the interdental papilla. 3) Placement of implant material and closure of the flap with loose cross mattress sutures to prevent dislodging the graft during suturing and achieve optimal flap closure.