Step 4. Dental implant placement. All implants should be placed in the optimal three dimensional position. Dental implant should be placed in the cingulum position (in line with adjacent teeth) and planned implant tooth incisal edge position should be in line with adjacent teeth incisal edge. In this ideal position, the implant collar should be 2 mm below the cementoenamel junction of the adjacent teeth apicocoronally or 3-4 mm bellow planned soft tissue margin, and at least 1.5 mm away from adjacent teeth mesiodistally.