To achieve lateral primary stability, the morphology of the socket plays an important role. Following the extraction procedure, the interradicular septum of the socket was confirmed clinically to determine the need for bone grafting or a wide-diameter implant (Fig. 1):
• Type I: Interradicular septum can support and integrate well with the implant. Bone grafting is not mandatory.
• Type II: Interradicular septum support for the implant is available but weak; bone grafting is required for primary stability of the implant fixture.
• Type III: The interradicular septum bone is absent to provide primary stability within the socket, and fixture stabilization only depends on the socket wall. In this type, a wide implant diameter can replace most of the extraction socket.
After applying the inclusion and exclusion criteria, the final group contained 26 patients. We presented eight representative cases each of ABH and interradicular septum type; two cases with Grade A Type I including one (Fig. 2) and two immediate implants (Fig. 3); one case with Grade B Type I (Fig. 4); three cases with Grade C Type I (two of which required reinstallation with and without sinus lifting) (Fig. 5); one case with Grade A Type II (Fig. 6); and one case with Grade A Type III.(Fig. 7)