Alveolar Bone Loss/surgery; Bone Morphogenetic Protein 2/therapeutic use; Collagen Type I; Hydroxyapatites; Tissue Scaffolds; Transforming Growth Factor beta/therapeutic use; Absorbable Implants; Animals; Bone Density/drug effects; Bone Density/physiology; Bone Matrix/drug effects; Bone Matrix/pathology; Bone Morphogenetic Protein 2/administration & dosage; Bone Regeneration/drug effects; Bone Regeneration/physiology; Bone Remodeling/drug effects; Bone Remodeling/physiology; Collagen Type I/chemistry; Dental Implantation, Endosseous/methods; Dogs; Drug Carriers; Drug Delivery Systems; Foam Cells/pathology; Humans; Hydroxyapatites/chemistry; Male; Materials Testing; Osseointegration/drug effects; Osseointegration/physiology; Osteogenesis/drug effects; Osteogenesis/physiology; Recombinant Proteins/administration & dosage; Recombinant Proteins/therapeutic use; Seroma/etiology; Tissue Scaffolds/chemistry; Tooth Extraction; Tooth Socket/surgery; Transforming Growth Factor beta/administration & dosage