Randomized Study Evaluating Recombinant Human Bone Morphogenetic Protein-2 for Extraction Socket AugmentationFiorellini, Joseph P.; Howell, T. Howard; Cochran, David; Malmquist, Jay; Lilly, Leslie C.; Spagnoli, Daniel; Toljanic, Joseph; Jones, Archie; Nevins, Myron · Journal of Periodontology · 2005