This technique is known as guided bone regeneration. This technique takes advantage of the body’s natural process of bone remodeling.
The bone substitute takes up the space needed to graft. This substitute is covered with a collagen membrane that further encourages bone regeneration as well as preventing soft tissue ingrowth. The membrane will resorb with time.
The bone resorbing cells (osteoclasts) will resorb the bone substitute and the osteoblasts will then deposit the bone in its place. With time, the space and bone substitute are replaced with the patient’s bone. Once this happens, the dental implants may be placed.