Viability of the retained bone core in the core-vent dental implant.

The survival of dental implants has been correlated with the formation of a bone-implant interface. This study was done to determine whether the recently developed Core-Vent dental implant forms a bone-implant interface without intervening fibrous tissue. Core-Vent implants were placed in four dogs, and healing was evaluated histologically 15, 30, 60, and 120 days after insertion. Bone grew through the implant vents to join with the inner bone plug, and the implants approximated the bone without an intervening fibrous tissue layer.