Tissue Preservation Techniques?

Studies have shown that there are many factors that determine the tissue contour and papilla fill between implants and teeth. But it can be argued that the best way to do so is to preserve the tissue contour from the very beginning. In this case, an immediate implant was placed into the socket followed by the fabrication of an immediate screw-retained provisional. 3 months later, the provisional was removed so that an impression could be taken and the peri-implant tissue was almost an exact replication of the original socket (1st two photos below). This can be difficult to achieve when a standard healing abutment is placed instead (last photo). What techniques and recommendations do you have for maximizing the chances of natural peri-implant tissue?