The inverted periosteal graft places regenerative cells over the area to be regenerated. In addition, the periosteum is an ideal barrier to unwanted cells. The attached gingiva and the periosteum will not tolerate contact with each other and therefore the periosteum is an ideal biological barrier. In the posterior, the papilla will not lay over the periosteum. In the anterior, the papilla will lay over the periosteum. A minimum of 6 weeks is required before the tissues can reorganize and the periodontal ligament can be probed. Over a few months, the tissue will fully reorganize into normal anatomy. The radiographic appearance of the bone will continue to increase in radiodensity over the following months and a periodontal ligament will appear radiographically.