279167.fig.005a
(a)
279167.fig.005b
(b)
Figure 5: (a) Optical micrograph depicting the lingual aspect of the section presented in the red box in Figure 3. The dashed red line represents the implant cervical level (immediately below the implant cover screw). New bone formation through the course of six weeks resulted in higher levels than at the time of placement (red arrow). The soft tissue (ST) limited migration likely occurred due to membrane movement during suture where it partially bent in the apical direction allowing tissue migration. (b) Optical micrograph depicting the buccal aspect of the section presented in the blue box in Figure 4. The dashed red line represents the implant cervical level (immediately below the implant cover screw). New bone formation through the course of six weeks resulted in bone height maintenance and closure of the gap between implant surface and socket wall. For this section, no soft tissue apical migration occurred.